./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2841072253 <...> Warning: Permanently added '10.128.1.21' (ED25519) to the list of known hosts. execve("./syz-executor2841072253", ["./syz-executor2841072253"], 0x7fff363c7180 /* 10 vars */) = 0 brk(NULL) = 0x5555726b0000 brk(0x5555726b0d00) = 0x5555726b0d00 arch_prctl(ARCH_SET_FS, 0x5555726b0380) = 0 set_tid_address(0x5555726b0650) = 296 set_robust_list(0x5555726b0660, 24) = 0 rseq(0x5555726b0ca0, 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-executor2841072253", 4096) = 28 getrandom("\x4b\x22\xbd\x83\x72\xcc\xf2\x32", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555726b0d00 brk(0x5555726d1d00) = 0x5555726d1d00 brk(0x5555726d2000) = 0x5555726d2000 mprotect(0x7fa783158000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 297 attached , child_tidptr=0x5555726b0650) = 297 [pid 297] set_robust_list(0x5555726b0660, 24) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] mkdir("./syzkaller.RlFMiP", 0700) = 0 ./strace-static-x86_64: Process 298 attached [pid 296] <... clone resumed>, child_tidptr=0x5555726b0650) = 298 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] set_robust_list(0x5555726b0660, 24 [pid 297] chmod("./syzkaller.RlFMiP", 0777 [pid 298] <... set_robust_list resumed>) = 0 [pid 298] mkdir("./syzkaller.DEiCMl", 0700./strace-static-x86_64: Process 299 attached [pid 297] <... chmod resumed>) = 0 [pid 299] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] mkdir("./syzkaller.BMBhq8", 0700 [pid 297] chdir("./syzkaller.RlFMiP" [pid 296] <... clone resumed>, child_tidptr=0x5555726b0650) = 299 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x5555726b0660, 24) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555726b0650) = 300 [pid 300] mkdir("./syzkaller.PG4lq9", 0700 [pid 298] <... mkdir resumed>) = 0 [pid 297] mkdir("./0", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] chmod("./syzkaller.BMBhq8", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] chmod("./syzkaller.PG4lq9", 0777 [pid 299] <... chmod resumed>) = 0 [pid 298] chmod("./syzkaller.DEiCMl", 0777./strace-static-x86_64: Process 301 attached [pid 300] <... chmod resumed>) = 0 [pid 299] chdir("./syzkaller.BMBhq8" [pid 298] <... chmod resumed>) = 0 [pid 299] <... chdir resumed>) = 0 [pid 301] set_robust_list(0x5555726b0660, 24 [pid 298] chdir("./syzkaller.DEiCMl" [pid 299] mkdir("./0", 0777 [pid 298] <... chdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 301 [pid 298] mkdir("./0", 0777 [pid 301] <... set_robust_list resumed>) = 0 [pid 300] chdir("./syzkaller.PG4lq9" [pid 301] chdir("./0" [pid 300] <... chdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 300] mkdir("./0", 0777 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 301] <... chdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 302 attached [pid 301] <... prctl resumed>) = 0 [pid 301] setpgid(0, 0./strace-static-x86_64: Process 303 attached [pid 302] set_robust_list(0x5555726b0660, 24 [pid 301] <... setpgid resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 302 ./strace-static-x86_64: Process 304 attached [pid 302] <... set_robust_list resumed>) = 0 [pid 303] set_robust_list(0x5555726b0660, 24 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 304] set_robust_list(0x5555726b0660, 24 [pid 303] <... set_robust_list resumed>) = 0 [pid 302] chdir("./0" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 303 [pid 302] <... chdir resumed>) = 0 [pid 301] <... openat resumed>) = 3 [pid 303] chdir("./0" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 304 [pid 304] <... set_robust_list resumed>) = 0 [pid 303] <... chdir resumed>) = 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 301] write(3, "1000", 4 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 302] <... prctl resumed>) = 0 [pid 304] chdir("./0" [pid 303] <... prctl resumed>) = 0 [pid 301] <... write resumed>) = 4 [pid 304] <... chdir resumed>) = 0 [pid 302] setpgid(0, 0 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 303] setpgid(0, 0 [pid 301] close(3 [pid 304] <... prctl resumed>) = 0 [pid 303] <... setpgid resumed>) = 0 [pid 302] <... setpgid resumed>) = 0 [pid 301] <... close resumed>) = 0 [pid 304] setpgid(0, 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 301] symlink("/dev/binderfs", "./binderfs" [pid 304] <... setpgid resumed>) = 0 [pid 303] <... openat resumed>) = 3 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] symlink("/dev/binderfs", "./binderfs" [pid 301] <... symlink resumed>) = 0 [pid 304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 303] <... symlink resumed>) = 0 [pid 302] <... openat resumed>) = 3 [pid 304] <... openat resumed>) = 3 [pid 303] write(1, "executing program\n", 18executing program ) = 18 [pid 302] write(3, "1000", 4 [pid 304] write(3, "1000", 4 executing program [pid 301] write(1, "executing program\n", 18 [pid 304] <... write resumed>) = 4 [pid 303] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 302] <... write resumed>) = 4 [pid 301] <... write resumed>) = 18 [pid 304] close(3 [pid 303] <... mkdirat resumed>) = 0 [pid 302] close(3 [pid 304] <... close resumed>) = 0 [pid 302] <... close resumed>) = 0 [pid 304] symlink("/dev/binderfs", "./binderfs" [pid 302] symlink("/dev/binderfs", "./binderfs" [pid 301] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 303] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 304] <... symlink resumed>) = 0 [pid 302] <... symlink resumed>) = 0 [pid 301] <... mkdirat resumed>) = 0 [ 29.077937][ T36] audit: type=1400 audit(1750332344.250:64): avc: denied { execmem } for pid=296 comm="syz-executor284" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 executing program executing program [pid 303] <... mount resumed>) = 0 [pid 303] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 303] exit_group(0) = ? [pid 303] +++ exited with 0 +++ [pid 304] write(1, "executing program\n", 18) = 18 [pid 304] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 304] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 304] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 304] exit_group(0) = ? [pid 304] +++ exited with 0 +++ [pid 302] write(1, "executing program\n", 18) = 18 [pid 302] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 302] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 302] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 302] exit_group(0 [pid 301] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 302] <... exit_group resumed>) = ? [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=303, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 302] +++ exited with 0 +++ [pid 301] <... mount resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 301] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 301] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 301] exit_group(0 [pid 300] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 301] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 301] +++ exited with 0 +++ [pid 300] newfstatat(3, "", [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [ 29.120286][ T36] audit: type=1400 audit(1750332344.290:65): avc: denied { mounton } for pid=303 comm="syz-executor284" path="/root/syzkaller.BMBhq8/0/binderfs2" dev="sda1" ino=2034 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 29.146023][ T36] audit: type=1400 audit(1750332344.290:66): avc: denied { mount } for pid=303 comm="syz-executor284" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [pid 298] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./0/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./0/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./0/binderfs2") = 0 [pid 298] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./0/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./0") = 0 [pid 298] mkdir("./1", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555726b0650) = 305 ./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x5555726b0660, 24) = 0 [pid 305] chdir("./1") = 0 [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] write(1, "executing program\n", 18executing program ) = 18 [pid 305] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 305] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 305] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 305] exit_group(0) = ? [pid 305] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./0/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./0/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./0/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./0/binderfs2", [pid 300] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 299] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./0/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./0/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./0/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 299] newfstatat(4, "", [pid 297] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(4, "", [pid 300] close(4 [pid 299] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 300] rmdir("./0/binderfs2") = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./0/binderfs2" [pid 297] close(4 [pid 300] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./0/binderfs2") = 0 [pid 300] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./0/binderfs" [pid 299] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./0/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./0/binderfs", [pid 300] close(3 [pid 299] unlink("./0/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] unlink("./0/binderfs" [pid 300] rmdir("./0" [pid 297] <... unlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] mkdir("./1", 0777 [pid 299] rmdir("./0" [pid 297] close(3 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./0") = 0 [pid 299] mkdir("./1", 0777) = 0 [ 29.170425][ T36] audit: type=1400 audit(1750332344.300:67): avc: denied { read } for pid=303 comm="syz-executor284" name="binder0" dev="binder" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=chr_file permissive=1 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] mkdir("./1", 0777) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 306 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 307 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 308 ./strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x5555726b0660, 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 ./strace-static-x86_64: Process 308 attached ./strace-static-x86_64: Process 307 attached [pid 298] <... umount2 resumed>) = 0 [pid 306] close(3) = 0 [pid 306] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 298] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 306] write(1, "executing program\n", 18) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 306] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./1/binderfs2", [pid 306] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./1/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 306] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 306] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./1/binderfs2") = 0 [pid 306] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 306] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./1/binderfs" [pid 306] <... exit_group resumed>) = ? [pid 298] <... unlink resumed>) = 0 [pid 306] +++ exited with 0 +++ [pid 298] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./1") = 0 [pid 298] mkdir("./2", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... restart_syscall resumed>) = 0 [pid 300] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 309 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 308] set_robust_list(0x5555726b0660, 24) = 0 [pid 308] chdir("./1") = 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"./strace-static-x86_64: Process 309 attached [pid 307] set_robust_list(0x5555726b0660, 24 [pid 309] set_robust_list(0x5555726b0660, 24 [pid 308] <... symlink resumed>) = 0 [pid 307] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 309] <... set_robust_list resumed>) = 0 [pid 308] write(1, "executing program\n", 18executing program [pid 309] chdir("./2" [pid 308] <... write resumed>) = 18 [pid 307] chdir("./1" [pid 300] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 309] <... chdir resumed>) = 0 [pid 308] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 307] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./1/binderfs2", [pid 309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 309] <... prctl resumed>) = 0 [pid 307] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 309] setpgid(0, 0 [pid 307] setpgid(0, 0 [pid 300] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 309] <... setpgid resumed>) = 0 [pid 308] <... mkdirat resumed>) = 0 [pid 307] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 308] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./1/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 309] write(3, "1000", 4 [pid 300] <... openat resumed>) = 4 [pid 307] <... openat resumed>) = 3 [pid 308] <... mount resumed>) = 0 [pid 309] <... write resumed>) = 4 [pid 300] newfstatat(4, "", [pid 309] close(3 [pid 308] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 309] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 309] symlink("/dev/binderfs", "./binderfs" [pid 308] <... openat resumed>) = 3 [pid 307] write(3, "1000", 4 [pid 300] getdents64(4, [pid 307] <... write resumed>) = 4 [pid 307] close(3) = 0 [pid 307] symlink("/dev/binderfs", "./binderfs" [pid 309] <... symlink resumed>) = 0 [pid 308] exit_group(0 [pid 307] <... symlink resumed>) = 0 executing program [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 308] <... exit_group resumed>) = ? [pid 300] getdents64(4, [pid 307] write(1, "executing program\n", 18) = 18 [pid 307] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 307] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 309] write(1, "executing program\n", 18 [pid 308] +++ exited with 0 +++ [pid 307] <... mount resumed>) = 0 executing program [pid 300] close(4 [pid 309] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 309] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./1/binderfs2" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 307] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 307] exit_group(0 [pid 309] <... mkdirat resumed>) = 0 [pid 307] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 309] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 307] +++ exited with 0 +++ [pid 309] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./1/binderfs", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... restart_syscall resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 309] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] unlink("./1/binderfs" [pid 297] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 309] exit_group(0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 309] <... exit_group resumed>) = ? [pid 309] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 300] close(3 [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./1" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] mkdir("./2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 310 attached [pid 297] <... umount2 resumed>) = 0 [pid 310] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 310 [pid 310] <... set_robust_list resumed>) = 0 [pid 310] chdir("./2" [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./1/binderfs2", [pid 299] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./1/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 310] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./1/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./1/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 310] <... prctl resumed>) = 0 [pid 310] setpgid(0, 0 [pid 297] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 310] <... setpgid resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./1/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 310] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 310] write(3, "1000", 4 [pid 299] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 310] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 310] close(3 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 310] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] close(4 [pid 310] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./1/binderfs2" [pid 310] <... symlink resumed>) = 0 [pid 299] close(4 [pid 297] <... rmdir resumed>) = 0 executing program [pid 310] write(1, "executing program\n", 18 [pid 299] <... close resumed>) = 0 [pid 310] <... write resumed>) = 18 [pid 299] rmdir("./1/binderfs2" [pid 297] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 310] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] unlink("./1/binderfs") = 0 [pid 297] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./1" [pid 310] <... mkdirat resumed>) = 0 [pid 299] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./1/binderfs", [pid 310] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./1/binderfs" [pid 298] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./2", 0777 [pid 299] <... unlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 310] <... mount resumed>) = 0 [pid 298] newfstatat(3, "", [pid 299] getdents64(3, [pid 310] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./1" [pid 310] <... openat resumed>) = 3 [pid 298] getdents64(3, ./strace-static-x86_64: Process 311 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 311 [pid 311] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 311] chdir("./2" [pid 310] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 311] <... chdir resumed>) = 0 [pid 311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 310] <... exit_group resumed>) = ? [pid 299] mkdir("./2", 0777 [pid 298] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 311] setpgid(0, 0) = 0 [pid 311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = 0 [pid 311] <... openat resumed>) = 3 [pid 310] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 311] write(3, "1000", 4) = 4 [pid 311] close(3) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 311] symlink("/dev/binderfs", "./binderfs" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 311] <... symlink resumed>) = 0 [pid 311] write(1, "executing program\n", 18 [pid 298] newfstatat(AT_FDCWD, "./2/binderfs2", executing program [pid 311] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./2/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 312 attached [pid 311] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 312] set_robust_list(0x5555726b0660, 24 [pid 311] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 312] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 312 [pid 298] newfstatat(4, "", [pid 311] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 312] chdir("./2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 312] <... chdir resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(4, [pid 312] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 312] setpgid(0, 0 [pid 298] close(4 [pid 312] <... setpgid resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./2/binderfs2" [pid 312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 312] <... openat resumed>) = 3 [pid 312] write(3, "1000", 4 [pid 298] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 312] <... write resumed>) = 4 [pid 311] <... mount resumed>) = 0 [pid 312] close(3 [pid 311] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 312] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./2/binderfs", [pid 312] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 311] <... openat resumed>) = 3 [pid 312] <... symlink resumed>) = 0 [pid 298] unlink("./2/binderfs" [pid 311] exit_group(0 [pid 312] write(1, "executing program\n", 18 [pid 298] <... unlink resumed>) = 0 executing program [pid 312] <... write resumed>) = 18 [pid 298] getdents64(3, [pid 311] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 312] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(3 [pid 312] <... mkdirat resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./2" [pid 312] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... rmdir resumed>) = 0 [pid 311] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 312] <... mount resumed>) = 0 [pid 298] mkdir("./3", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 312] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... restart_syscall resumed>) = 0 [pid 300] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 312] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 312] exit_group(0 [pid 300] <... openat resumed>) = 3 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 313 ./strace-static-x86_64: Process 313 attached [pid 313] set_robust_list(0x5555726b0660, 24) = 0 [ 29.199199][ T36] audit: type=1400 audit(1750332344.300:68): avc: denied { open } for pid=303 comm="syz-executor284" path="/root/syzkaller.BMBhq8/0/binderfs2/binder0" dev="binder" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=chr_file permissive=1 [ 29.229700][ T36] audit: type=1400 audit(1750332344.330:69): avc: denied { unmount } for pid=298 comm="syz-executor284" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [pid 312] <... exit_group resumed>) = ? [pid 300] newfstatat(3, "", [pid 313] chdir("./3" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 313] <... chdir resumed>) = 0 [pid 300] getdents64(3, [pid 313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 313] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 313] <... setpgid resumed>) = 0 [pid 300] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 312] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 313] <... openat resumed>) = 3 [pid 313] write(3, "1000", 4) = 4 [pid 300] <... umount2 resumed>) = 0 [pid 313] close(3 [pid 300] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 313] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 313] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(AT_FDCWD, "./2/binderfs2", executing program [pid 313] <... symlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 313] write(1, "executing program\n", 18 [pid 300] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 313] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 313] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./2/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 313] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 313] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... openat resumed>) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 313] <... mount resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./2/binderfs2" [pid 313] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 313] <... openat resumed>) = 3 [pid 300] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 313] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 313] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./2/binderfs", [pid 299] newfstatat(AT_FDCWD, "./2/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./2/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 300] unlink("./2/binderfs" [pid 313] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... unlink resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 300] close(3 [pid 299] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] rmdir("./2/binderfs2" [pid 300] rmdir("./2" [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./3", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./2/binderfs", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 314 attached [pid 299] unlink("./2/binderfs" [pid 297] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 314 [pid 314] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(3, [pid 314] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./2/binderfs2", [pid 314] chdir("./3" [pid 299] close(3 [pid 314] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] rmdir("./2" [pid 314] <... prctl resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./2/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./2/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 314] setpgid(0, 0 [pid 299] mkdir("./3", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 314] <... setpgid resumed>) = 0 [pid 314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 314] <... openat resumed>) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 314] write(3, "1000", 4 [pid 298] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 315 attached [pid 314] <... write resumed>) = 4 [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 315] set_robust_list(0x5555726b0660, 24 [pid 314] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 315 [pid 298] newfstatat(3, "", [pid 297] getdents64(4, [pid 315] <... set_robust_list resumed>) = 0 [pid 314] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 315] chdir("./3" [pid 314] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, [pid 298] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 315] <... chdir resumed>) = 0 [pid 314] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 314] write(1, "executing program\n", 18 [pid 298] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 315] <... prctl resumed>) = 0 [pid 314] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 315] setpgid(0, 0 [pid 297] <... close resumed>) = 0 [pid 315] <... setpgid resumed>) = 0 [pid 314] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] rmdir("./2/binderfs2" [pid 298] newfstatat(AT_FDCWD, "./3/binderfs2", [pid 315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./3/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 314] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./3/binderfs2" [pid 315] <... openat resumed>) = 3 [pid 314] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 315] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 315] <... write resumed>) = 4 [pid 315] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./2/binderfs", [pid 315] <... close resumed>) = 0 [pid 298] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./3/binderfs", [pid 315] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./3/binderfs" [pid 315] <... symlink resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] unlink("./2/binderfs"executing program [pid 315] write(1, "executing program\n", 18 [pid 314] <... mount resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 315] <... write resumed>) = 18 [pid 314] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... unlink resumed>) = 0 [pid 315] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(3) = 0 [pid 314] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 298] rmdir("./3" [pid 315] <... mkdirat resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./4", 0777 [pid 314] exit_group(0) = ? [pid 315] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 316 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 316 [pid 316] set_robust_list(0x5555726b0660, 24) = 0 [pid 316] chdir("./4") = 0 [pid 316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 315] <... mount resumed>) = 0 [pid 297] rmdir("./2" [pid 316] <... prctl resumed>) = 0 [pid 316] setpgid(0, 0) = 0 [pid 316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... rmdir resumed>) = 0 [pid 316] <... openat resumed>) = 3 [pid 316] write(3, "1000", 4 [pid 314] +++ exited with 0 +++ [pid 297] mkdir("./3", 0777 [pid 316] <... write resumed>) = 4 [pid 315] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 316] close(3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 316] <... close resumed>) = 0 [pid 316] symlink("/dev/binderfs", "./binderfs" [pid 297] <... mkdir resumed>) = 0 executing program [pid 315] <... openat resumed>) = 3 [pid 316] <... symlink resumed>) = 0 [pid 316] write(1, "executing program\n", 18) = 18 [pid 316] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 315] exit_group(0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 315] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 317 attached [pid 316] <... mkdirat resumed>) = 0 [pid 316] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 317] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 317 [pid 317] <... set_robust_list resumed>) = 0 [pid 316] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 317] chdir("./3" [pid 316] <... openat resumed>) = 3 [pid 317] <... chdir resumed>) = 0 [pid 315] +++ exited with 0 +++ [pid 317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 316] exit_group(0 [pid 317] <... prctl resumed>) = 0 [pid 299] --- 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] setpgid(0, 0 [pid 316] <... exit_group resumed>) = ? [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 317] <... setpgid resumed>) = 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" [pid 316] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 317] <... symlink resumed>) = 0 [pid 317] write(1, "executing program\n", 18executing program ) = 18 [pid 317] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 317] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 317] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 317] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 317] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 317] exit_group(0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 317] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./3/binderfs2", [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 317] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./3/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(3, "", [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 300] newfstatat(4, "", [pid 297] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(4 [pid 297] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./3/binderfs2" [pid 297] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./3/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./3/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./3/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./3/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./3/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./3/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./3/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 299] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] getdents64(4, [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 299] close(4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./3" [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./3/binderfs2" [pid 297] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./4", 0777 [pid 299] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./3/binderfs2") = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./3/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./3/binderfs", [pid 299] unlink("./3/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 297] unlink("./3/binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 298] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(3, [pid 299] close(3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... close resumed>) = 0 [pid 297] close(3 [pid 299] rmdir("./3" [pid 297] <... close resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] rmdir("./3" [pid 299] mkdir("./4", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 318 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 318 attached [pid 299] <... mkdir resumed>) = 0 [pid 297] mkdir("./4", 0777 [pid 298] newfstatat(AT_FDCWD, "./4/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 318] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 318] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 318] chdir("./4" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... mkdir resumed>) = 0 [pid 318] <... chdir resumed>) = 0 [pid 318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] openat(AT_FDCWD, "./4/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 319 attached [pid 318] <... prctl resumed>) = 0 [pid 318] setpgid(0, 0 [pid 298] <... openat resumed>) = 4 [pid 319] set_robust_list(0x5555726b0660, 24) = 0 [pid 318] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 320 attached [pid 298] newfstatat(4, "", [pid 319] chdir("./4" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 319 [pid 298] getdents64(4, [pid 320] set_robust_list(0x5555726b0660, 24 [pid 318] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 320 [pid 320] <... set_robust_list resumed>) = 0 [pid 319] <... chdir resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 318] write(3, "1000", 4 [pid 298] <... close resumed>) = 0 [pid 320] chdir("./4" [pid 319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 318] <... write resumed>) = 4 [pid 298] rmdir("./4/binderfs2" [pid 320] <... chdir resumed>) = 0 [pid 319] <... prctl resumed>) = 0 [pid 318] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 319] setpgid(0, 0 [pid 320] <... prctl resumed>) = 0 [pid 319] <... setpgid resumed>) = 0 [pid 318] <... close resumed>) = 0 [pid 298] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 320] setpgid(0, 0 [pid 318] symlink("/dev/binderfs", "./binderfs" [pid 320] <... setpgid resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./4/binderfs", [pid 318] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./4/binderfs" [pid 320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 318] write(1, "executing program\n", 18executing program [pid 298] <... unlink resumed>) = 0 [pid 320] <... openat resumed>) = 3 [pid 319] <... openat resumed>) = 3 [pid 318] <... write resumed>) = 18 [pid 320] write(3, "1000", 4 [pid 319] write(3, "1000", 4 [pid 320] <... write resumed>) = 4 [pid 318] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 319] <... write resumed>) = 4 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 320] close(3 [pid 298] close(3) = 0 [pid 298] rmdir("./4" [pid 320] <... close resumed>) = 0 [pid 319] close(3 [pid 318] <... mkdirat resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 319] <... close resumed>) = 0 [pid 320] symlink("/dev/binderfs", "./binderfs" [pid 319] symlink("/dev/binderfs", "./binderfs" [pid 318] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] mkdir("./5", 0777 [pid 320] <... symlink resumed>) = 0 [pid 319] <... symlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 318] <... mount resumed>) = 0 [pid 319] write(1, "executing program\n", 18executing program ) = 18 executing program [pid 319] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 320] write(1, "executing program\n", 18./strace-static-x86_64: Process 321 attached [pid 321] set_robust_list(0x5555726b0660, 24 [pid 320] <... write resumed>) = 18 [pid 319] <... mkdirat resumed>) = 0 [pid 321] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 321 [pid 320] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 321] chdir("./5") = 0 [pid 321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 320] <... mkdirat resumed>) = 0 [pid 318] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 321] <... prctl resumed>) = 0 [pid 321] setpgid(0, 0) = 0 executing program [pid 319] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 318] <... openat resumed>) = 3 [pid 320] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 321] write(3, "1000", 4) = 4 [pid 320] <... mount resumed>) = 0 [pid 321] close(3) = 0 [pid 321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 321] write(1, "executing program\n", 18) = 18 [pid 319] <... mount resumed>) = 0 [pid 321] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 320] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 319] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 318] exit_group(0) = ? [pid 321] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 321] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 320] <... openat resumed>) = 3 [pid 319] <... openat resumed>) = 3 [pid 318] +++ exited with 0 +++ [pid 321] exit_group(0 [pid 319] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 320] exit_group(0 [pid 321] <... exit_group resumed>) = ? [pid 320] <... exit_group resumed>) = ? [pid 319] <... exit_group resumed>) = ? [pid 321] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 320] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 319] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./4/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./4/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./4/binderfs2") = 0 [pid 300] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./4/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./4") = 0 [pid 300] mkdir("./5", 0777 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 322 attached ) = -1 EINVAL (Invalid argument) [pid 322] set_robust_list(0x5555726b0660, 24 [pid 297] newfstatat(AT_FDCWD, "./4/binderfs2", [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 322 [pid 298] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 322] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 322] chdir("./5" [pid 299] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 322] <... chdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./4/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 322] <... prctl resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 322] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(4, "", [pid 322] <... setpgid resumed>) = 0 [pid 299] getdents64(3, [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 322] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 322] write(3, "1000", 4 [pid 297] getdents64(4, [pid 322] <... write resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 322] close(3 [pid 298] <... umount2 resumed>) = 0 [pid 297] close(4 [pid 322] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 322] symlink("/dev/binderfs", "./binderfs" [pid 297] rmdir("./4/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 322] <... symlink resumed>) = 0 executing program [pid 322] write(1, "executing program\n", 18 [pid 297] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 322] <... write resumed>) = 18 [pid 299] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 322] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./5/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./4/binderfs", [pid 299] newfstatat(AT_FDCWD, "./4/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 322] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 322] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./4/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./4/binderfs" [pid 299] openat(AT_FDCWD, "./4/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./5/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 322] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... openat resumed>) = 4 [pid 322] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 297] <... unlink resumed>) = 0 [pid 322] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 322] exit_group(0 [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 322] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 322] +++ exited with 0 +++ [pid 298] close(4 [pid 297] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] rmdir("./4/binderfs2" [pid 298] rmdir("./5/binderfs2" [pid 297] rmdir("./4" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./5", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./4/binderfs", [pid 300] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./4/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./5/binderfs", [pid 300] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(3, "", [pid 299] getdents64(3, [pid 298] unlink("./5/binderfs"./strace-static-x86_64: Process 323 attached [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 323] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(3, [pid 323] <... set_robust_list resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 323 [pid 323] chdir("./5" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] close(3 [pid 298] getdents64(3, [pid 323] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./4" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 323] setpgid(0, 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 323] <... setpgid resumed>) = 0 [pid 300] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./5", 0777 [pid 298] close(3 [pid 323] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./5/binderfs2", [pid 299] <... mkdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 323] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 323] <... write resumed>) = 4 [pid 300] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 323] close(3) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] rmdir("./5"./strace-static-x86_64: Process 324 attached [pid 323] symlink("/dev/binderfs", "./binderfs" [pid 300] openat(AT_FDCWD, "./5/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 324] set_robust_list(0x5555726b0660, 24 [pid 323] <... symlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 324 [pid 298] mkdir("./6", 0777 [pid 324] <... set_robust_list resumed>) = 0 [pid 323] write(1, "executing program\n", 18 [pid 300] <... openat resumed>) = 4 executing program [pid 324] chdir("./5" [pid 323] <... write resumed>) = 18 [pid 300] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 324] <... chdir resumed>) = 0 [pid 323] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 324] <... prctl resumed>) = 0 [pid 323] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 324] setpgid(0, 0 [pid 323] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, [pid 324] <... setpgid resumed>) = 0 [pid 323] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 323] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] close(4./strace-static-x86_64: Process 325 attached [pid 324] <... openat resumed>) = 3 [pid 323] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 325] set_robust_list(0x5555726b0660, 24 [pid 324] write(3, "1000", 4 [pid 323] exit_group(0 [pid 300] rmdir("./5/binderfs2" [pid 325] <... set_robust_list resumed>) = 0 [pid 324] <... write resumed>) = 4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 325 [pid 323] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 324] close(3 [pid 325] chdir("./6" [pid 300] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 325] <... chdir resumed>) = 0 [pid 324] <... close resumed>) = 0 [pid 323] +++ exited with 0 +++ [pid 325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 324] symlink("/dev/binderfs", "./binderfs" [pid 325] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./5/binderfs", [pid 325] setpgid(0, 0 [pid 324] <... symlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 325] <... setpgid resumed>) = 0 [pid 324] write(1, "executing program\n", 18 [pid 300] unlink("./5/binderfs"executing program [pid 325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 324] <... write resumed>) = 18 [pid 300] <... unlink resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 325] <... openat resumed>) = 3 [pid 324] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, [pid 325] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 325] <... write resumed>) = 4 [pid 324] <... mkdirat resumed>) = 0 [pid 300] close(3 [pid 325] close(3 [pid 324] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... close resumed>) = 0 [pid 325] <... close resumed>) = 0 [pid 300] rmdir("./5" [pid 325] symlink("/dev/binderfs", "./binderfs" [pid 324] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./6", 0777executing program [pid 325] <... symlink resumed>) = 0 [pid 324] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 325] write(1, "executing program\n", 18) = 18 [pid 324] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 325] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 324] exit_group(0) = ? [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 325] <... mkdirat resumed>) = 0 [pid 325] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 324] +++ exited with 0 +++ [pid 325] <... mount resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 325] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 326 attached [pid 325] <... openat resumed>) = 3 [pid 326] set_robust_list(0x5555726b0660, 24 [pid 325] exit_group(0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 326 [pid 326] <... set_robust_list resumed>) = 0 [pid 325] <... exit_group resumed>) = ? [pid 297] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 326] chdir("./6") = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 325] +++ exited with 0 +++ [pid 326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 326] <... prctl resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 326] setpgid(0, 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... openat resumed>) = 3 [pid 326] <... setpgid resumed>) = 0 [pid 299] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 326] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 326] write(3, "1000", 4 [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 326] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 326] close(3 [pid 299] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 326] <... close resumed>) = 0 [pid 326] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 326] <... symlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./5/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 326] write(1, "executing program\n", 18executing program [pid 297] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 326] <... write resumed>) = 18 [pid 298] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./5/binderfs2", [pid 326] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./5/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./5/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(3, "", [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 326] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./5/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 326] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... openat resumed>) = 4 [pid 298] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./5/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 326] <... mount resumed>) = 0 [pid 299] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] unlink("./5/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(4, [pid 298] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 326] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 299] close(3) = 0 [pid 297] <... close resumed>) = 0 [pid 299] rmdir("./5" [pid 297] rmdir("./5/binderfs2" [pid 326] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./6/binderfs2", [pid 299] mkdir("./6", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 326] exit_group(0 [pid 298] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 326] <... exit_group resumed>) = ? [pid 299] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./6/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./5/binderfs", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 327 attached [pid 327] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] newfstatat(4, "", [pid 297] unlink("./5/binderfs" [pid 326] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 327] chdir("./6" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 327 [pid 298] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 327] <... chdir resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(3, [pid 327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... restart_syscall resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 327] <... prctl resumed>) = 0 [pid 327] setpgid(0, 0 [pid 298] close(4 [pid 297] <... close resumed>) = 0 [pid 327] <... setpgid resumed>) = 0 [pid 327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] rmdir("./5" [pid 327] <... openat resumed>) = 3 [pid 298] rmdir("./6/binderfs2" [pid 327] write(3, "1000", 4) = 4 [pid 327] close(3) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 327] symlink("/dev/binderfs", "./binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./6", 0777 [pid 327] <... symlink resumed>) = 0 [pid 327] write(1, "executing program\n", 18executing program ) = 18 [pid 327] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 327] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(3, "", [pid 298] newfstatat(AT_FDCWD, "./6/binderfs", [pid 327] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 328 attached ) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 328 [pid 300] getdents64(3, [pid 298] unlink("./6/binderfs" [pid 328] set_robust_list(0x5555726b0660, 24) = 0 [pid 328] chdir("./6" [pid 298] <... unlink resumed>) = 0 [pid 328] <... chdir resumed>) = 0 [pid 327] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(3, [pid 328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 328] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 328] setpgid(0, 0 [pid 327] <... openat resumed>) = 3 [pid 300] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 328] <... setpgid resumed>) = 0 [pid 327] exit_group(0 [pid 298] close(3 [pid 328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 327] <... exit_group resumed>) = ? [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] rmdir("./6") = 0 [pid 300] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 328] write(3, "1000", 4) = 4 [pid 328] close(3) = 0 [pid 328] symlink("/dev/binderfs", "./binderfs"executing program [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./7", 0777 [pid 328] <... symlink resumed>) = 0 [pid 327] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./6/binderfs2", [pid 328] write(1, "executing program\n", 18) = 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 328] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 328] <... mkdirat resumed>) = 0 [pid 300] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 329 attached ) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", [pid 328] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./6/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 329] set_robust_list(0x5555726b0660, 24) = 0 [pid 328] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 329 [pid 329] chdir("./7" [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 329] <... chdir resumed>) = 0 [pid 329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 299] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 329] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 329] setpgid(0, 0 [pid 300] getdents64(4, [pid 329] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 328] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] close(4 [pid 299] <... umount2 resumed>) = 0 [pid 328] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 329] <... openat resumed>) = 3 [pid 328] exit_group(0 [pid 300] rmdir("./6/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 328] <... exit_group resumed>) = ? [pid 299] newfstatat(AT_FDCWD, "./6/binderfs2", [pid 329] write(3, "1000", 4 [pid 328] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 329] <... write resumed>) = 4 [pid 299] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 329] close(3 [pid 300] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 329] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./6/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 329] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 329] <... symlink resumed>) = 0 [pid 299] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./6/binderfs", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, executing program [pid 329] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 329] <... write resumed>) = 18 [pid 300] unlink("./6/binderfs" [pid 329] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./6/binderfs2" [pid 329] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 329] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] unlink("./6/binderfs" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./6" [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./6" [pid 329] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./7", 0777 [pid 329] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] mkdir("./7", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 329] <... openat resumed>) = 3 [pid 329] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 330 attached [pid 330] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 330 ./strace-static-x86_64: Process 331 attached [pid 330] chdir("./7") = 0 [pid 330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 331] set_robust_list(0x5555726b0660, 24 [pid 329] <... exit_group resumed>) = ? [pid 331] <... set_robust_list resumed>) = 0 [pid 330] setpgid(0, 0) = 0 [pid 330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 330] write(3, "1000", 4) = 4 [pid 330] close(3) = 0 [pid 331] chdir("./7" [pid 330] symlink("/dev/binderfs", "./binderfs" [pid 331] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 331 [pid 331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 330] <... symlink resumed>) = 0 [pid 329] +++ exited with 0 +++ executing program [pid 331] setpgid(0, 0) = 0 [pid 330] write(1, "executing program\n", 18 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=329, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 330] <... write resumed>) = 18 [pid 330] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 331] <... openat resumed>) = 3 [pid 331] write(3, "1000", 4 [pid 330] <... mkdirat resumed>) = 0 [pid 331] <... write resumed>) = 4 [pid 330] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 331] close(3) = 0 [pid 331] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 331] write(1, "executing program\n", 18executing program [pid 297] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 331] <... write resumed>) = 18 [pid 297] newfstatat(3, "", [pid 331] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 330] <... mount resumed>) = 0 [pid 330] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 330] exit_group(0 [pid 331] <... mkdirat resumed>) = 0 [pid 297] getdents64(3, [pid 330] <... exit_group resumed>) = ? [pid 331] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 297] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./6/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 331] <... mount resumed>) = 0 [pid 297] umount2("./6/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./6/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./6/binderfs2" [pid 330] +++ exited with 0 +++ [pid 331] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 331] <... openat resumed>) = 3 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./6/binderfs" [pid 331] exit_group(0) = ? [pid 298] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./6" [pid 331] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./7", 0777 [pid 299] getdents64(3, [pid 298] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(3, "", [pid 298] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 332 attached [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./7/binderfs2", [pid 332] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 332 [pid 332] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./7/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 332] chdir("./7" [pid 300] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./7/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 332] <... chdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./7/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 332] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 332] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./7/binderfs2", [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 332] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] rmdir("./7/binderfs2" [pid 298] getdents64(4, [pid 300] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 332] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./7/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 332] write(3, "1000", 4 [pid 300] newfstatat(4, "", [pid 298] getdents64(4, [pid 332] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 332] close(3 [pid 300] getdents64(4, [pid 298] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 332] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./7/binderfs" [pid 332] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(4, [pid 298] rmdir("./7/binderfs2" [pid 332] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./7" executing program [pid 300] close(4 [pid 332] write(1, "executing program\n", 18 [pid 298] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 332] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 332] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./7/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] mkdir("./8", 0777 [pid 298] newfstatat(AT_FDCWD, "./7/binderfs", [pid 332] <... mkdirat resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] unlink("./7/binderfs" [pid 332] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./7/binderfs", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 333 attached [pid 332] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 333] set_robust_list(0x5555726b0660, 24 [pid 332] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] unlink("./7/binderfs" [pid 333] <... set_robust_list resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 332] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 333 [pid 333] chdir("./8" [pid 332] exit_group(0 [pid 300] getdents64(3, [pid 298] rmdir("./7" [pid 333] <... chdir resumed>) = 0 [pid 332] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 333] setpgid(0, 0) = 0 [pid 300] close(3 [pid 298] mkdir("./8", 0777 [pid 332] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] rmdir("./7" [pid 298] <... mkdir resumed>) = 0 [pid 333] write(3, "1000", 4) = 4 [pid 333] close(3) = 0 [pid 333] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 executing program [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] mkdir("./8", 0777 [pid 333] <... symlink resumed>) = 0 [pid 333] write(1, "executing program\n", 18) = 18 [pid 333] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 334 attached ) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 334] set_robust_list(0x5555726b0660, 24) = 0 [pid 334] chdir("./8" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 334 [pid 334] <... chdir resumed>) = 0 [pid 333] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 335 attached [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 333] <... mount resumed>) = 0 [pid 334] <... prctl resumed>) = 0 [pid 334] setpgid(0, 0) = 0 [pid 335] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 335 [pid 335] <... set_robust_list resumed>) = 0 [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 335] chdir("./8") = 0 [pid 333] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 334] <... openat resumed>) = 3 [pid 333] <... openat resumed>) = 3 [pid 335] <... prctl resumed>) = 0 [pid 334] write(3, "1000", 4 [pid 335] setpgid(0, 0 [pid 333] exit_group(0 [pid 335] <... setpgid resumed>) = 0 [pid 334] <... write resumed>) = 4 [pid 335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 334] close(3 [pid 333] <... exit_group resumed>) = ? [pid 335] <... openat resumed>) = 3 [pid 334] <... close resumed>) = 0 [pid 333] +++ exited with 0 +++ [pid 334] symlink("/dev/binderfs", "./binderfs" [pid 335] write(3, "1000", 4 [pid 299] --- 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] <... write resumed>) = 4 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 335] close(3) = 0 [pid 334] <... symlink resumed>) = 0 executing program [pid 335] symlink("/dev/binderfs", "./binderfs" [pid 334] write(1, "executing program\n", 18) = 18 [pid 334] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 335] <... symlink resumed>) = 0 [pid 335] write(1, "executing program\n", 18executing program ) = 18 [pid 299] <... restart_syscall resumed>) = 0 [pid 335] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 334] <... mkdirat resumed>) = 0 [pid 334] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 335] <... mkdirat resumed>) = 0 [pid 299] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 335] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 334] <... mount resumed>) = 0 [pid 299] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 334] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 3 [pid 334] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 334] exit_group(0) = ? [pid 335] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 335] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 334] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 335] <... openat resumed>) = 3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(3, "", [pid 299] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 335] exit_group(0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 335] <... exit_group resumed>) = ? [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./8/binderfs2", [pid 297] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 335] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] openat(AT_FDCWD, "./8/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./7/binderfs2", [pid 298] newfstatat(3, "", [pid 299] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./7/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] openat(AT_FDCWD, "./7/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 298] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] close(4 [pid 297] newfstatat(4, "", [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] rmdir("./8/binderfs2" [pid 298] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./7/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./8/binderfs2", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./8/binderfs", [pid 297] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./7/binderfs", [pid 299] unlink("./8/binderfs" [pid 298] openat(AT_FDCWD, "./8/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] unlink("./7/binderfs" [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./8" [pid 297] <... unlink resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 297] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 297] rmdir("./7" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] close(4 [pid 299] mkdir("./9", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] rmdir("./8/binderfs2" [pid 297] mkdir("./8", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 336 attached [pid 297] <... mkdir resumed>) = 0 [pid 336] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 336 [pid 336] <... set_robust_list resumed>) = 0 [pid 300] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 336] chdir("./9" [pid 298] newfstatat(AT_FDCWD, "./8/binderfs", [pid 336] <... chdir resumed>) = 0 [pid 336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 337 attached [pid 336] setpgid(0, 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 337] set_robust_list(0x5555726b0660, 24 [pid 336] <... setpgid resumed>) = 0 [pid 337] <... set_robust_list resumed>) = 0 [pid 336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 337] chdir("./8" [pid 300] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] unlink("./8/binderfs" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 337 [pid 337] <... chdir resumed>) = 0 [pid 336] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] getdents64(3, [pid 336] write(3, "1000", 4 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 336] <... write resumed>) = 4 [pid 337] <... prctl resumed>) = 0 [pid 336] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 337] setpgid(0, 0 [pid 336] <... close resumed>) = 0 [pid 298] close(3 [pid 337] <... setpgid resumed>) = 0 [pid 336] symlink("/dev/binderfs", "./binderfs" [pid 298] <... close resumed>) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 336] <... symlink resumed>) = 0 [pid 300] getdents64(3, [pid 298] rmdir("./8" [pid 337] <... openat resumed>) = 3 [pid 336] write(1, "executing program\n", 18) = 18 [pid 337] write(3, "1000", 4 [pid 336] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 337] <... write resumed>) = 4 [pid 298] mkdir("./9", 0777 [pid 337] close(3 [pid 336] <... mkdirat resumed>) = 0 [pid 300] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 337] <... close resumed>) = 0 [pid 337] symlink("/dev/binderfs", "./binderfs") = 0 [pid 336] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 338 attached [pid 337] write(1, "executing program\n", 18executing program [pid 336] <... mount resumed>) = 0 [pid 337] <... write resumed>) = 18 [pid 337] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 338] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 338] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./8/binderfs2", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 338 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 338] chdir("./9" [pid 337] <... mkdirat resumed>) = 0 [pid 336] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 338] <... chdir resumed>) = 0 [pid 336] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 336] exit_group(0 [pid 338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] openat(AT_FDCWD, "./8/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 338] <... prctl resumed>) = 0 [pid 337] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... openat resumed>) = 4 [pid 338] setpgid(0, 0) = 0 [pid 337] <... mount resumed>) = 0 [pid 336] <... exit_group resumed>) = ? [pid 300] newfstatat(4, "", [pid 338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 336] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 338] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 338] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 337] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 338] <... write resumed>) = 4 [pid 337] <... openat resumed>) = 3 [pid 300] close(4 [pid 299] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 338] close(3 [pid 300] <... close resumed>) = 0 [pid 338] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 300] rmdir("./8/binderfs2" [pid 338] symlink("/dev/binderfs", "./binderfs" [pid 337] exit_group(0) = ? [pid 338] <... symlink resumed>) = 0 [pid 337] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...>executing program [pid 338] write(1, "executing program\n", 18 [pid 300] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 338] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./8/binderfs", [pid 338] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./8/binderfs" [pid 338] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 338] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] close(3) = 0 [pid 338] <... mount resumed>) = 0 [pid 300] rmdir("./8" [pid 299] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 338] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./9", 0777 [pid 338] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 338] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./9/binderfs2", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 338] <... exit_group resumed>) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 339 attached [pid 339] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 339 [pid 339] <... set_robust_list resumed>) = 0 [pid 339] chdir("./9" [pid 299] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 339] <... chdir resumed>) = 0 [pid 339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 339] setpgid(0, 0) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 338] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./9/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... openat resumed>) = 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(4, "", [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 339] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 339] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 339] <... write resumed>) = 4 [pid 299] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 339] close(3 [pid 299] close(4 [pid 297] newfstatat(3, "", [pid 339] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 339] symlink("/dev/binderfs", "./binderfs" [pid 299] rmdir("./9/binderfs2" [pid 297] getdents64(3, [pid 339] <... symlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) executing program [pid 339] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./9/binderfs", [pid 297] <... umount2 resumed>) = 0 [pid 339] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 339] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] unlink("./9/binderfs") = 0 [pid 299] getdents64(3, [pid 297] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 339] <... mkdirat resumed>) = 0 [pid 299] rmdir("./9" [pid 297] newfstatat(AT_FDCWD, "./8/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 339] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./8/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 339] <... mount resumed>) = 0 [pid 299] mkdir("./10", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./8/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 339] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, [pid 298] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 339] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 339] exit_group(0 [pid 297] getdents64(4, [pid 298] <... openat resumed>) = 3 ./strace-static-x86_64: Process 340 attached [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 340] set_robust_list(0x5555726b0660, 24 [pid 339] <... exit_group resumed>) = ? [pid 297] close(4 [pid 340] <... set_robust_list resumed>) = 0 [pid 339] +++ exited with 0 +++ [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 340 [pid 298] newfstatat(3, "", [pid 340] chdir("./10" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 340] <... chdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(3, [pid 297] rmdir("./8/binderfs2" [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 340] <... prctl resumed>) = 0 [pid 298] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 340] setpgid(0, 0) = 0 [pid 297] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 340] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./8/binderfs", [pid 298] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 340] write(3, "1000", 4 [pid 297] unlink("./8/binderfs" [pid 340] <... write resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./9/binderfs2", [pid 340] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 340] <... close resumed>) = 0 [pid 298] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 340] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 340] <... symlink resumed>) = 0 [pid 297] getdents64(3, executing program [pid 340] write(1, "executing program\n", 18 [pid 298] openat(AT_FDCWD, "./9/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 340] <... write resumed>) = 18 [pid 340] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... openat resumed>) = 4 [pid 340] <... mkdirat resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./8" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 340] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] close(4 [pid 340] <... mount resumed>) = 0 [pid 297] mkdir("./9", 0777 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./9/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 340] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 340] exit_group(0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 340] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 341 attached [pid 340] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./9/binderfs", [pid 341] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(3, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 341] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 341 [pid 341] chdir("./9" [pid 298] unlink("./9/binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 341] <... chdir resumed>) = 0 [pid 300] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 341] setpgid(0, 0 [pid 299] <... openat resumed>) = 3 [pid 300] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 341] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./9/binderfs2", [pid 299] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 341] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 341] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] rmdir("./9" [pid 341] <... write resumed>) = 4 [pid 299] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./9/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] <... umount2 resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./9/binderfs2" [pid 341] close(3 [pid 299] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./10", 0777 [pid 341] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 341] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./10/binderfs2", [pid 298] <... mkdir resumed>) = 0 [pid 341] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./9/binderfs" [pid 341] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./10/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(3 [pid 299] <... openat resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(4, "", [pid 300] rmdir("./9" [pid 341] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] mkdir("./10", 0777./strace-static-x86_64: Process 342 attached [pid 341] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 342 [pid 342] set_robust_list(0x5555726b0660, 24 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 343 attached [pid 342] <... set_robust_list resumed>) = 0 [pid 342] chdir("./10") = 0 [pid 299] getdents64(4, [pid 343] set_robust_list(0x5555726b0660, 24 [pid 342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 343] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 342] <... prctl resumed>) = 0 [pid 299] close(4 [pid 342] setpgid(0, 0 [pid 299] <... close resumed>) = 0 [pid 342] <... setpgid resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 343 [pid 299] rmdir("./10/binderfs2" [pid 342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 341] <... mount resumed>) = 0 [pid 342] write(3, "1000", 4) = 4 [pid 342] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 343] chdir("./10" [pid 341] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 343] <... chdir resumed>) = 0 [pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 342] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 343] <... prctl resumed>) = 0 [pid 342] symlink("/dev/binderfs", "./binderfs" [pid 341] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./10/binderfs", [pid 343] setpgid(0, 0 [pid 342] <... symlink resumed>) = 0 [pid 341] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 343] <... setpgid resumed>) = 0 [pid 299] unlink("./10/binderfs" [pid 342] write(1, "executing program\n", 18 [pid 343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 342] <... write resumed>) = 18 [pid 342] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... unlink resumed>) = 0 executing program [pid 343] <... openat resumed>) = 3 [pid 341] <... exit_group resumed>) = ? [pid 299] getdents64(3, [pid 343] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 343] <... write resumed>) = 4 [pid 342] <... mkdirat resumed>) = 0 [pid 342] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 343] close(3 [pid 299] close(3 [pid 343] <... close resumed>) = 0 [pid 341] +++ exited with 0 +++ [pid 342] <... mount resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 343] symlink("/dev/binderfs", "./binderfs" [pid 299] rmdir("./10" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 342] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 342] exit_group(0 [pid 299] mkdir("./11", 0777 [pid 342] <... exit_group resumed>) = ? [pid 299] <... mkdir resumed>) = 0 executing program [pid 343] <... symlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 343] write(1, "executing program\n", 18) = 18 [pid 342] +++ exited with 0 +++ [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 344 ./strace-static-x86_64: Process 344 attached [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 343] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 344] set_robust_list(0x5555726b0660, 24) = 0 [pid 344] chdir("./11") = 0 [pid 343] <... mkdirat resumed>) = 0 [pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 344] setpgid(0, 0) = 0 [pid 343] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 344] write(3, "1000", 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 344] <... write resumed>) = 4 [pid 344] close(3) = 0 [pid 344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 344] write(1, "executing program\n", 18) = 18 [pid 343] <... mount resumed>) = 0 [pid 298] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 344] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 343] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 344] <... mkdirat resumed>) = 0 [pid 343] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 344] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 343] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... restart_syscall resumed>) = 0 [pid 343] <... exit_group resumed>) = ? [pid 298] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 344] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 344] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 343] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 344] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./10/binderfs2", [pid 344] exit_group(0 [pid 297] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 344] <... exit_group resumed>) = ? [pid 298] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 344] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./10/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./9/binderfs2", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./9/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./9/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./10/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 299] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./10/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 299] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./10/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./10" [pid 299] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] mkdir("./11", 0777 [pid 297] rmdir("./9/binderfs2" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./11/binderfs2", [pid 298] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./11/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./9/binderfs", [pid 300] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 345 attached [pid 300] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] unlink("./9/binderfs" [pid 345] set_robust_list(0x5555726b0660, 24 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 345 [pid 345] <... set_robust_list resumed>) = 0 [pid 300] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 345] chdir("./11" [pid 300] <... umount2 resumed>) = 0 [pid 345] <... chdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 345] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./10/binderfs2", [pid 345] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 345] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] close(3 [pid 345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./11/binderfs2" [pid 297] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./10/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] rmdir("./9" [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 345] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./10/binderfs2" [pid 345] write(3, "1000", 4 [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 345] <... write resumed>) = 4 [pid 345] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./10", 0777 [pid 345] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./11/binderfs", [pid 345] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] unlink("./11/binderfs" [pid 345] <... symlink resumed>) = 0 [pid 300] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./10/binderfs") = 0 [pid 300] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 executing program [pid 345] write(1, "executing program\n", 18 [pid 299] <... unlink resumed>) = 0 [pid 345] <... write resumed>) = 18 [pid 299] getdents64(3, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 345] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./10") = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] mkdir("./11", 0777./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x5555726b0660, 24 [pid 345] <... mkdirat resumed>) = 0 [pid 346] <... set_robust_list resumed>) = 0 [pid 346] chdir("./10" [pid 345] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] close(3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 346 [pid 299] <... close resumed>) = 0 [pid 346] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] rmdir("./11" [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 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 345] <... mount resumed>) = 0 [pid 299] mkdir("./12", 0777 [pid 346] <... openat resumed>) = 3 [pid 346] write(3, "1000", 4 [pid 299] <... mkdir resumed>) = 0 [pid 346] <... write resumed>) = 4 [pid 346] close(3) = 0 [pid 346] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 347 attached ) = 0 [pid 345] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 347 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 347] set_robust_list(0x5555726b0660, 24) = 0 [pid 345] <... openat resumed>) = 3 [pid 346] write(1, "executing program\n", 18 [pid 347] chdir("./11") = 0 [pid 346] <... write resumed>) = 18 [pid 345] exit_group(0 [pid 347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 346] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 347] setpgid(0, 0 [pid 345] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 348 attached [pid 348] set_robust_list(0x5555726b0660, 24) = 0 [pid 348] chdir("./12" [pid 346] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 345] +++ exited with 0 +++ [pid 348] <... chdir resumed>) = 0 [pid 348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 347] <... setpgid resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 348] setpgid(0, 0 [pid 346] <... mount resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 348 [pid 348] <... setpgid resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 347] <... openat resumed>) = 3 [pid 346] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 348] write(3, "1000", 4 [pid 347] write(3, "1000", 4 [pid 348] <... write resumed>) = 4 [pid 347] <... write resumed>) = 4 [pid 346] <... openat resumed>) = 3 [pid 348] close(3) = 0 [pid 347] close(3 [pid 348] symlink("/dev/binderfs", "./binderfs" [pid 347] <... close resumed>) = 0 [pid 346] exit_group(0 [pid 348] <... symlink resumed>) = 0 [pid 347] symlink("/dev/binderfs", "./binderfs" [pid 346] <... exit_group resumed>) = ? [pid 347] <... symlink resumed>) = 0 [pid 346] +++ exited with 0 +++ executing program [pid 348] write(1, "executing program\n", 18) = 18 executing program [pid 347] write(1, "executing program\n", 18 [pid 348] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 347] <... write resumed>) = 18 [pid 348] <... mkdirat resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 348] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 347] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 347] <... mkdirat resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 347] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 348] <... mount resumed>) = 0 [pid 348] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 347] <... mount resumed>) = 0 [pid 297] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 348] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 348] <... exit_group resumed>) = ? [pid 348] +++ exited with 0 +++ [pid 347] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 347] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 347] exit_group(0 [pid 297] getdents64(3, [pid 347] <... exit_group resumed>) = ? [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(3, "", [pid 299] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] getdents64(3, [pid 347] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(AT_FDCWD, "./10/binderfs2", [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./10/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./11/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./10/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./11/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(4, "", [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./12/binderfs2", [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 297] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./12/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] close(4 [pid 297] rmdir("./10/binderfs2" [pid 299] <... openat resumed>) = 4 [pid 298] <... close resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] rmdir("./11/binderfs2" [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./11/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./11") = 0 [pid 298] mkdir("./12", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(AT_FDCWD, "./10/binderfs", [pid 299] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] unlink("./10/binderfs" [pid 299] close(4./strace-static-x86_64: Process 349 attached [pid 297] <... unlink resumed>) = 0 [pid 349] set_robust_list(0x5555726b0660, 24 [pid 299] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 349 [pid 297] getdents64(3, [pid 349] <... set_robust_list resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] rmdir("./12/binderfs2" [pid 349] chdir("./12" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 349] <... chdir resumed>) = 0 [pid 349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 349] setpgid(0, 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 349] <... setpgid resumed>) = 0 [pid 349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 300] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./12/binderfs", [pid 297] rmdir("./10" [pid 300] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 349] <... openat resumed>) = 3 [pid 349] write(3, "1000", 4) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 349] close(3 [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 349] <... close resumed>) = 0 executing program [pid 300] newfstatat(3, "", [pid 299] unlink("./12/binderfs" [pid 297] mkdir("./11", 0777 [pid 349] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 349] <... symlink resumed>) = 0 [pid 349] write(1, "executing program\n", 18 [pid 300] getdents64(3, [pid 349] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 349] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 349] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] close(3./strace-static-x86_64: Process 350 attached ) = 0 [pid 299] rmdir("./12" [pid 350] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(AT_FDCWD, "./11/binderfs2", [pid 299] <... rmdir resumed>) = 0 [pid 350] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 350 [pid 300] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./13", 0777 [pid 350] chdir("./11" [pid 300] openat(AT_FDCWD, "./11/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 349] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] <... mkdir resumed>) = 0 [pid 350] <... chdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(4, "", [pid 350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 350] <... prctl resumed>) = 0 [pid 300] getdents64(4, [pid 350] setpgid(0, 0 [pid 349] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 351 attached [pid 350] <... setpgid resumed>) = 0 [pid 349] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 351] set_robust_list(0x5555726b0660, 24 [pid 350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 351 [pid 351] <... set_robust_list resumed>) = 0 [pid 349] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 351] chdir("./13" [pid 350] <... openat resumed>) = 3 [pid 351] <... chdir resumed>) = 0 [pid 351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 351] setpgid(0, 0) = 0 executing program [pid 349] <... exit_group resumed>) = ? [pid 350] write(3, "1000", 4 [pid 300] close(4 [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] write(1, "executing program\n", 18 [pid 350] <... write resumed>) = 4 [pid 349] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 351] <... write resumed>) = 18 [pid 350] close(3 [pid 300] rmdir("./11/binderfs2" [pid 351] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 350] <... close resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 350] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 351] <... mkdirat resumed>) = 0 [pid 351] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 350] <... symlink resumed>) = 0 executing program [pid 300] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 350] write(1, "executing program\n", 18 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 351] <... mount resumed>) = 0 [pid 350] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 350] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(AT_FDCWD, "./11/binderfs", [pid 351] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./11/binderfs" [pid 350] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./12/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./12/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 351] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 351] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 351] <... exit_group resumed>) = ? [pid 350] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 300] rmdir("./11" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./12/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./12/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./12" [pid 351] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./13", 0777) = 0 [pid 350] <... mount resumed>) = 0 [pid 300] mkdir("./12", 0777 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 352 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 352 [pid 352] set_robust_list(0x5555726b0660, 24 [pid 299] <... restart_syscall resumed>) = 0 [pid 350] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY./strace-static-x86_64: Process 353 attached [pid 352] <... set_robust_list resumed>) = 0 [pid 352] chdir("./13" [pid 353] set_robust_list(0x5555726b0660, 24 [pid 352] <... chdir resumed>) = 0 [pid 350] <... openat resumed>) = 3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 353 [pid 299] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 353] <... set_robust_list resumed>) = 0 [pid 350] exit_group(0 [pid 353] chdir("./12" [pid 352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 353] <... chdir resumed>) = 0 [pid 352] <... prctl resumed>) = 0 [pid 350] <... exit_group resumed>) = ? [pid 299] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 352] setpgid(0, 0 [pid 299] <... openat resumed>) = 3 [pid 353] <... prctl resumed>) = 0 [pid 352] <... setpgid resumed>) = 0 [pid 353] setpgid(0, 0 [pid 352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] newfstatat(3, "", [pid 353] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 352] <... openat resumed>) = 3 [pid 350] +++ exited with 0 +++ [pid 299] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 352] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 353] <... openat resumed>) = 3 [pid 353] write(3, "1000", 4 [pid 352] <... write resumed>) = 4 [pid 353] <... write resumed>) = 4 [pid 352] close(3 [pid 299] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 353] close(3 [pid 352] <... close resumed>) = 0 [pid 353] <... close resumed>) = 0 [pid 353] symlink("/dev/binderfs", "./binderfs" [pid 352] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 353] <... symlink resumed>) = 0 [pid 352] <... symlink resumed>) = 0 [pid 299] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program ) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./13/binderfs2", [pid 353] write(1, "executing program\n", 18) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 353] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 352] write(1, "executing program\n", 18) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 353] <... mkdirat resumed>) = 0 [pid 352] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 353] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./13/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 352] <... mkdirat resumed>) = 0 [pid 352] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 353] <... mount resumed>) = 0 [pid 353] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 4 [pid 352] <... mount resumed>) = 0 [pid 299] newfstatat(4, "", [pid 353] <... openat resumed>) = 3 [pid 352] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 352] <... openat resumed>) = 3 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 353] exit_group(0 [pid 352] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 353] <... exit_group resumed>) = ? [pid 299] close(4 [pid 352] <... exit_group resumed>) = ? [pid 352] +++ exited with 0 +++ [pid 353] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... restart_syscall resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] rmdir("./13/binderfs2" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 299] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 298] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./13/binderfs", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./13/binderfs" [pid 298] newfstatat(3, "", [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 299] getdents64(3, [pid 300] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 297] <... umount2 resumed>) = 0 [pid 300] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 299] <... close resumed>) = 0 [pid 298] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./13" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./11/binderfs2", [pid 300] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./11/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] mkdir("./14", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./11/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", [pid 300] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 354 attached [pid 300] newfstatat(AT_FDCWD, "./12/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./13/binderfs2", [pid 354] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 354 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 354] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 354] chdir("./14" [pid 300] openat(AT_FDCWD, "./12/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 354] <... chdir resumed>) = 0 [pid 297] rmdir("./11/binderfs2" [pid 354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] openat(AT_FDCWD, "./13/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 354] <... prctl resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 354] setpgid(0, 0 [pid 300] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 354] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 300] getdents64(4, [pid 297] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 297] newfstatat(AT_FDCWD, "./11/binderfs", [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./12/binderfs2" [pid 354] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 354] write(3, "1000", 4 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 354] <... write resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 354] close(3 [pid 298] close(4 [pid 354] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 354] symlink("/dev/binderfs", "./binderfs" [pid 298] rmdir("./13/binderfs2" [pid 300] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./11/binderfs" [pid 354] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./12/binderfs", [pid 297] <... unlink resumed>) = 0 [pid 298] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 354] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 354] <... write resumed>) = 18 [pid 300] unlink("./12/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 354] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./13/binderfs", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 354] <... mkdirat resumed>) = 0 [pid 300] close(3 [pid 298] unlink("./13/binderfs" [pid 297] rmdir("./11" [pid 354] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... close resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 354] <... mount resumed>) = 0 [pid 300] rmdir("./12" [pid 297] mkdir("./12", 0777 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./13") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 354] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] mkdir("./14", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 354] exit_group(0 [pid 300] mkdir("./13", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 354] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 355 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 355 [pid 300] <... mkdir resumed>) = 0 [pid 355] set_robust_list(0x5555726b0660, 24) = 0 [pid 355] chdir("./14") = 0 [pid 355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 355] setpgid(0, 0) = 0 [pid 354] +++ exited with 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"executing program [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] --- 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] <... symlink resumed>) = 0 [pid 355] write(1, "executing program\n", 18) = 18 [pid 355] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 356 attached ) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 356 [pid 356] set_robust_list(0x5555726b0660, 24) = 0 [pid 356] chdir("./12" [pid 355] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 357 attached [pid 299] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 357] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 357] chdir("./13" [pid 299] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 357] <... chdir resumed>) = 0 [pid 356] <... chdir resumed>) = 0 [pid 355] <... mount resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 357 [pid 299] <... openat resumed>) = 3 [pid 357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(3, "", [pid 357] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 357] setpgid(0, 0 [pid 299] getdents64(3, [pid 356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 355] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 357] <... setpgid resumed>) = 0 [pid 356] <... prctl resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 356] setpgid(0, 0 [pid 299] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 356] <... setpgid resumed>) = 0 [pid 355] <... openat resumed>) = 3 [pid 356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = 0 [pid 357] <... openat resumed>) = 3 [pid 356] <... openat resumed>) = 3 [pid 355] exit_group(0 [pid 356] write(3, "1000", 4) = 4 [pid 356] close(3) = 0 [pid 355] <... exit_group resumed>) = ? [pid 357] write(3, "1000", 4 [pid 356] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 357] <... write resumed>) = 4 [pid 355] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 357] close(3 [pid 356] <... symlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./14/binderfs2", [pid 357] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 357] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 356] write(1, "executing program\n", 18 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=355, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 357] <... symlink resumed>) = 0 [pid 356] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 356] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 357] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./14/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 357] <... write resumed>) = 18 [pid 356] <... mkdirat resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 357] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 356] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 3 [pid 357] <... mkdirat resumed>) = 0 [pid 299] getdents64(4, [pid 298] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./14/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 356] <... mount resumed>) = 0 [pid 356] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 356] exit_group(0) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 357] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 356] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 357] <... mount resumed>) = 0 [pid 357] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = 0 [pid 357] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./14/binderfs", [pid 357] exit_group(0) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 357] +++ exited with 0 +++ [pid 299] unlink("./14/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./14/binderfs2", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=357, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./14" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./14/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(4, "", [pid 299] mkdir("./15", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] rmdir("./14/binderfs2" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./14/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./14") = 0 ./strace-static-x86_64: Process 358 attached [pid 298] mkdir("./15", 0777 [pid 358] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 358 [pid 358] <... set_robust_list resumed>) = 0 [pid 358] chdir("./15" [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 358] <... chdir resumed>) = 0 [pid 358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... restart_syscall resumed>) = 0 [pid 358] <... prctl resumed>) = 0 [pid 297] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 358] setpgid(0, 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 358] <... setpgid resumed>) = 0 [pid 297] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 359 attached [pid 297] newfstatat(3, "", [pid 359] set_robust_list(0x5555726b0660, 24 [pid 358] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 359] <... set_robust_list resumed>) = 0 [pid 297] getdents64(3, [pid 359] chdir("./15" [pid 358] write(3, "1000", 4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 359 [pid 359] <... chdir resumed>) = 0 [pid 358] <... write resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 358] close(3 [pid 297] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 359] <... prctl resumed>) = 0 [pid 359] setpgid(0, 0) = 0 [pid 359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 359] write(3, "1000", 4) = 4 [pid 359] close(3) = 0 [pid 359] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = 0 [pid 358] <... close resumed>) = 0 [pid 358] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 359] <... symlink resumed>) = 0 [pid 358] <... symlink resumed>) = 0 executing program [pid 359] write(1, "executing program\n", 18 [pid 358] write(1, "executing program\n", 18executing program [pid 297] newfstatat(AT_FDCWD, "./12/binderfs2", [pid 359] <... write resumed>) = 18 [pid 358] <... write resumed>) = 18 [pid 359] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 358] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./12/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 359] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./12/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 359] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 358] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 300] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(4, "", [pid 300] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(3, "", [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 359] <... mount resumed>) = 0 [pid 358] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 297] rmdir("./12/binderfs2") = 0 [pid 300] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 358] <... mount resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./13/binderfs2", [pid 297] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./13/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./12/binderfs", [pid 300] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 297] unlink("./12/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... unlink resumed>) = 0 [pid 359] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 358] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 359] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 358] <... openat resumed>) = 3 [pid 297] close(3 [pid 359] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 300] close(4 [pid 358] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 297] rmdir("./12" [pid 359] <... exit_group resumed>) = ? [pid 358] <... exit_group resumed>) = ? [pid 300] rmdir("./13/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] mkdir("./13", 0777 [pid 359] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./13/binderfs", [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 358] +++ exited with 0 +++ [pid 300] unlink("./13/binderfs") = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, ./strace-static-x86_64: Process 360 attached [pid 298] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 360] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 360 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 360] chdir("./13" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 360] <... chdir resumed>) = 0 [pid 300] close(3 [pid 360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 360] <... prctl resumed>) = 0 [pid 300] rmdir("./13" [pid 360] setpgid(0, 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 360] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] mkdir("./14", 0777 [pid 298] getdents64(3, [pid 360] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 360] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 360] <... write resumed>) = 4 [pid 298] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 360] close(3) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = 0 [pid 360] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 361 attached [pid 360] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 361] set_robust_list(0x5555726b0660, 24 [pid 360] write(1, "executing program\n", 18 [pid 298] newfstatat(AT_FDCWD, "./15/binderfs2", [pid 361] <... set_robust_list resumed>) = 0 [pid 360] <... write resumed>) = 18 [pid 361] chdir("./14" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 361] <... chdir resumed>) = 0 [pid 360] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 361 [pid 360] <... mkdirat resumed>) = 0 [pid 361] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 361] setpgid(0, 0 [pid 360] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] openat(AT_FDCWD, "./15/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 361] <... setpgid resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(4, "", [pid 361] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 361] write(3, "1000", 4 [pid 299] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 361] <... write resumed>) = 4 [pid 298] getdents64(4, [pid 361] close(3 [pid 360] <... mount resumed>) = 0 [pid 361] <... close resumed>) = 0 [pid 360] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 361] symlink("/dev/binderfs", "./binderfs" [pid 299] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 360] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 361] <... symlink resumed>) = 0 [pid 360] exit_group(0 [pid 299] <... openat resumed>) = 3 executing program [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 361] write(1, "executing program\n", 18 [pid 360] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 298] close(4 [pid 361] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 360] +++ exited with 0 +++ [pid 361] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./15/binderfs2" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 361] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 361] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./15/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./15/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 361] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(AT_FDCWD, "./15/binderfs", [pid 361] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 361] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 361] exit_group(0 [pid 299] getdents64(4, [pid 298] unlink("./15/binderfs" [pid 361] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... unlink resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./15/binderfs2" [pid 361] +++ exited with 0 +++ [pid 298] getdents64(3, [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] close(3 [pid 299] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./15/binderfs", [pid 298] rmdir("./15" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./15/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 298] mkdir("./16", 0777 [pid 299] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] close(3 [pid 300] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./14/binderfs2", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./15" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./14/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 362 attached [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] mkdir("./16", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 362 [pid 362] set_robust_list(0x5555726b0660, 24 [pid 300] close(4 [pid 362] <... set_robust_list resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 362] chdir("./16" [pid 300] rmdir("./14/binderfs2" [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 362] <... chdir resumed>) = 0 [pid 362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 362] setpgid(0, 0) = 0 [pid 300] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 363 attached [pid 362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 363] set_robust_list(0x5555726b0660, 24 [pid 362] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./14/binderfs", [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 363 [pid 297] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 363] <... set_robust_list resumed>) = 0 [pid 363] chdir("./16" [pid 362] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 [pid 363] <... chdir resumed>) = 0 [pid 362] <... write resumed>) = 4 [pid 300] unlink("./14/binderfs" [pid 297] newfstatat(3, "", [pid 363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 362] close(3 [pid 300] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 363] <... prctl resumed>) = 0 [pid 362] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 297] getdents64(3, [pid 363] setpgid(0, 0 [pid 362] symlink("/dev/binderfs", "./binderfs" [pid 363] <... setpgid resumed>) = 0 [pid 362] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 300] close(3 [pid 363] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 362] write(1, "executing program\n", 18 [pid 300] rmdir("./14" [pid 363] write(3, "1000", 4 [pid 362] <... write resumed>) = 18 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 363] <... write resumed>) = 4 [pid 362] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 363] close(3 [pid 297] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 363] <... close resumed>) = 0 [pid 362] <... mkdirat resumed>) = 0 [pid 300] mkdir("./15", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 363] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(AT_FDCWD, "./13/binderfs2", [pid 363] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 executing program [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 363] write(1, "executing program\n", 18 [pid 362] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 363] <... write resumed>) = 18 [pid 362] <... mount resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./13/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 363] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 363] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./13/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 364 attached [pid 297] newfstatat(4, "", [pid 362] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 364] set_robust_list(0x5555726b0660, 24 [pid 363] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 364] <... set_robust_list resumed>) = 0 [pid 297] getdents64(4, [pid 363] <... mount resumed>) = 0 [pid 362] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 364] chdir("./15" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 364 [pid 362] <... exit_group resumed>) = ? [pid 297] getdents64(4, [pid 364] <... chdir resumed>) = 0 [pid 362] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(4 [pid 364] <... prctl resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 364] setpgid(0, 0 [pid 297] rmdir("./13/binderfs2" [pid 363] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 364] <... setpgid resumed>) = 0 [pid 363] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 363] exit_group(0) = ? [pid 364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 364] <... openat resumed>) = 3 [pid 363] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(AT_FDCWD, "./13/binderfs", [pid 364] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 364] <... write resumed>) = 4 [pid 297] unlink("./13/binderfs" [pid 364] close(3) = 0 [pid 297] <... unlink resumed>) = 0 [pid 364] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] getdents64(3, [pid 364] write(1, "executing program\n", 18executing program [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 364] <... write resumed>) = 18 [pid 364] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(3) = 0 [pid 297] rmdir("./13" [pid 364] <... mkdirat resumed>) = 0 [pid 364] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./14", 0777 [pid 364] <... mount resumed>) = 0 [pid 364] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 364] exit_group(0) = ? ./strace-static-x86_64: Process 365 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 365 [pid 365] set_robust_list(0x5555726b0660, 24) = 0 [pid 365] chdir("./14") = 0 [pid 365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 364] +++ exited with 0 +++ [pid 365] <... prctl resumed>) = 0 [pid 365] setpgid(0, 0) = 0 [pid 365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 365] <... openat resumed>) = 3 [pid 365] write(3, "1000", 4) = 4 [pid 365] close(3) = 0 [pid 365] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 365] write(1, "executing program\n", 18) = 18 [pid 365] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 365] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 365] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 365] <... mount resumed>) = 0 [pid 300] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 365] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 365] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./15/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 365] exit_group(0 [pid 300] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./16/binderfs2", [pid 365] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 365] +++ exited with 0 +++ [pid 300] openat(AT_FDCWD, "./15/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./16/binderfs2", [pid 300] newfstatat(4, "", [pid 298] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./16/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] openat(AT_FDCWD, "./16/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(4 [pid 298] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] rmdir("./15/binderfs2") = 0 [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 299] getdents64(4, [pid 300] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./15/binderfs" [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 299] rmdir("./16/binderfs2" [pid 298] rmdir("./16/binderfs2" [pid 297] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./15") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 299] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./16/binderfs", [pid 299] newfstatat(AT_FDCWD, "./16/binderfs", [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./16/binderfs" [pid 298] unlink("./16/binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] mkdir("./16", 0777 [pid 297] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 366 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 366 attached [pid 366] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] close(3 [pid 297] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 299] rmdir("./16" [pid 298] rmdir("./16" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 366] chdir("./16") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 366] setpgid(0, 0) = 0 [pid 366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./14/binderfs2", [pid 366] <... openat resumed>) = 3 [pid 299] mkdir("./17", 0777 [pid 298] mkdir("./17", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 366] write(3, "1000", 4 [pid 297] umount2("./14/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 366] <... write resumed>) = 4 [pid 366] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 366] <... close resumed>) = 0 [pid 366] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 298] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./14/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 366] write(1, "executing program\n", 18) = 18 [pid 366] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 4 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 366] <... mkdirat resumed>) = 0 [pid 297] newfstatat(4, "", ./strace-static-x86_64: Process 367 attached [pid 366] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 368 attached [pid 367] set_robust_list(0x5555726b0660, 24 [pid 366] <... mount resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 367 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 368] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 368 [pid 297] getdents64(4, [pid 367] <... set_robust_list resumed>) = 0 [pid 368] <... set_robust_list resumed>) = 0 [pid 367] chdir("./17" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 368] chdir("./17" [pid 367] <... chdir resumed>) = 0 [pid 297] getdents64(4, [pid 367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 366] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 368] <... chdir resumed>) = 0 [pid 367] <... prctl resumed>) = 0 [pid 366] <... openat resumed>) = 3 [pid 297] close(4 [pid 368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 367] setpgid(0, 0 [pid 368] <... prctl resumed>) = 0 [pid 367] <... setpgid resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 368] setpgid(0, 0 [pid 367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 366] exit_group(0 [pid 368] <... setpgid resumed>) = 0 [pid 367] <... openat resumed>) = 3 [pid 297] rmdir("./14/binderfs2" [pid 368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 367] write(3, "1000", 4 [pid 366] <... exit_group resumed>) = ? [pid 368] <... openat resumed>) = 3 [pid 367] <... write resumed>) = 4 [pid 366] +++ exited with 0 +++ [pid 297] <... rmdir resumed>) = 0 [pid 367] close(3) = 0 [pid 367] symlink("/dev/binderfs", "./binderfs" [pid 368] write(3, "1000", 4 [pid 367] <... symlink resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 368] <... write resumed>) = 4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 368] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 368] <... close resumed>) = 0 executing program [pid 297] newfstatat(AT_FDCWD, "./14/binderfs", [pid 368] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 367] write(1, "executing program\n", 18) = 18 [pid 367] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 368] <... symlink resumed>) = 0 [pid 367] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] unlink("./14/binderfs"executing program [pid 368] write(1, "executing program\n", 18 [pid 367] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... unlink resumed>) = 0 [pid 368] <... write resumed>) = 18 [pid 300] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 368] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 367] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 367] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 367] <... openat resumed>) = 3 [pid 367] exit_group(0) = ? [pid 368] <... mkdirat resumed>) = 0 [pid 297] close(3 [pid 300] getdents64(3, [pid 368] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 367] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./14" [pid 300] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... rmdir resumed>) = 0 [pid 368] <... mount resumed>) = 0 [pid 300] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 368] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] mkdir("./15", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./16/binderfs2", [pid 368] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 368] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 368] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./16/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 369 attached [pid 368] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 369] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 369] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 369 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 369] chdir("./15" [pid 298] newfstatat(3, "", [pid 369] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 298] getdents64(3, [pid 369] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 369] setpgid(0, 0 [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 369] <... setpgid resumed>) = 0 [pid 298] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./16/binderfs2" [pid 369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 369] <... openat resumed>) = 3 [pid 300] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 369] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 369] <... write resumed>) = 4 [pid 369] close(3 [pid 300] newfstatat(AT_FDCWD, "./16/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 369] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./17/binderfs2", [pid 369] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 369] <... symlink resumed>) = 0 [pid 300] unlink("./16/binderfs" [pid 298] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 369] write(1, "executing program\n", 18 executing program [pid 300] <... unlink resumed>) = 0 [pid 369] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 369] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, [pid 298] openat(AT_FDCWD, "./17/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 369] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 369] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(3 [pid 298] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./16" [pid 298] getdents64(4, [pid 369] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 369] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(4, [pid 369] <... openat resumed>) = 3 [pid 300] mkdir("./17", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 369] exit_group(0 [pid 298] close(4) = 0 [pid 369] <... exit_group resumed>) = ? [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 369] +++ exited with 0 +++ [pid 298] rmdir("./17/binderfs2"./strace-static-x86_64: Process 370 attached [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 370] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 370 [pid 298] <... rmdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 370] <... set_robust_list resumed>) = 0 [pid 370] chdir("./17" [pid 298] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 370] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(AT_FDCWD, "./17/binderfs", [pid 370] <... prctl resumed>) = 0 [pid 370] setpgid(0, 0) = 0 [pid 370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 370] <... openat resumed>) = 3 [pid 298] unlink("./17/binderfs" [pid 370] write(3, "1000", 4) = 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 370] close(3) = 0 [pid 370] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 299] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 370] <... symlink resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] close(3 [pid 297] <... restart_syscall resumed>) = 0 executing program [pid 370] write(1, "executing program\n", 18 [pid 299] newfstatat(3, "", [pid 370] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 370] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 298] rmdir("./17" [pid 297] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 370] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 370] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./18", 0777 [pid 297] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 370] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 370] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... mkdir resumed>) = 0 [pid 370] <... openat resumed>) = 3 [pid 370] exit_group(0 [pid 297] newfstatat(3, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 370] <... exit_group resumed>) = ? [pid 297] getdents64(3, ./strace-static-x86_64: Process 371 attached [pid 370] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./17/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 371 [pid 371] set_robust_list(0x5555726b0660, 24 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 371] <... set_robust_list resumed>) = 0 [pid 299] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 371] chdir("./18" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./17/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 371] <... chdir resumed>) = 0 [pid 297] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... openat resumed>) = 4 [pid 371] <... prctl resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 371] setpgid(0, 0 [pid 297] newfstatat(AT_FDCWD, "./15/binderfs2", [pid 371] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(4, [pid 297] umount2("./15/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 371] <... openat resumed>) = 3 [pid 371] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 297] openat(AT_FDCWD, "./15/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 371] <... write resumed>) = 4 [pid 371] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 371] <... close resumed>) = 0 [pid 299] close(4 [pid 371] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 299] rmdir("./17/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 371] write(1, "executing program\n", 18 [pid 297] getdents64(4, [pid 371] <... write resumed>) = 18 [pid 371] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 371] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./17/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 371] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./17/binderfs" [pid 297] rmdir("./15/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 371] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 371] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 371] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 371] exit_group(0 [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 297] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 371] <... exit_group resumed>) = ? [pid 300] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 371] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./15/binderfs", [pid 299] rmdir("./17" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./17/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] unlink("./15/binderfs" [pid 299] mkdir("./18", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./17/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... unlink resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] rmdir("./17/binderfs2" [pid 297] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 372 attached [pid 372] set_robust_list(0x5555726b0660, 24) = 0 [pid 372] chdir("./18" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 372 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./15" [pid 372] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./17/binderfs", [pid 298] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 372] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./16", 0777 [pid 372] setpgid(0, 0 [pid 300] unlink("./17/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 372] <... setpgid resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, [pid 372] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... mkdir resumed>) = 0 [pid 372] write(3, "1000", 4 [pid 300] close(3 [pid 298] <... openat resumed>) = 3 [pid 372] <... write resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 372] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 372] <... close resumed>) = 0 [pid 300] rmdir("./17" [pid 298] getdents64(3, ./strace-static-x86_64: Process 373 attached [pid 372] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 373] set_robust_list(0x5555726b0660, 24executing program [pid 372] <... symlink resumed>) = 0 [pid 300] mkdir("./18", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 373] <... set_robust_list resumed>) = 0 [pid 372] write(1, "executing program\n", 18 [pid 298] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 373 [pid 373] chdir("./16" [pid 372] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 372] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 373] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 372] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./18/binderfs2", [pid 373] <... prctl resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 373] setpgid(0, 0) = 0 [pid 298] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 374 attached [pid 373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 372] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 373] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./18/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 373] write(3, "1000", 4 [pid 298] <... openat resumed>) = 4 [pid 373] <... write resumed>) = 4 [pid 373] close(3 [pid 298] newfstatat(4, "", [pid 373] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 373] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, [pid 374] set_robust_list(0x5555726b0660, 24 [pid 373] <... symlink resumed>) = 0 [pid 372] <... mount resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 374 [pid 374] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 373] write(1, "executing program\n", 18 [pid 298] getdents64(4, [pid 373] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 373] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(4) = 0 [pid 374] chdir("./18" [pid 372] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] rmdir("./18/binderfs2" [pid 374] <... chdir resumed>) = 0 [pid 373] <... mkdirat resumed>) = 0 [pid 372] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 373] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 374] <... prctl resumed>) = 0 [pid 372] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./18/binderfs", [pid 374] setpgid(0, 0 [pid 373] <... mount resumed>) = 0 [pid 372] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 374] <... setpgid resumed>) = 0 [pid 373] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] unlink("./18/binderfs" [pid 374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 373] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 373] exit_group(0 [pid 298] getdents64(3, [pid 373] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 372] +++ exited with 0 +++ [pid 298] close(3 [pid 374] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 374] write(3, "1000", 4 [pid 298] rmdir("./18" [pid 374] <... write resumed>) = 4 [pid 373] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 374] close(3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... rmdir resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 374] <... close resumed>) = 0 [pid 298] mkdir("./19", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 374] symlink("/dev/binderfs", "./binderfs" [pid 298] <... mkdir resumed>) = 0 [pid 374] <... symlink resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 374] write(1, "executing program\n", 18./strace-static-x86_64: Process 375 attached ) = 18 [pid 375] set_robust_list(0x5555726b0660, 24 [pid 374] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 375 [pid 375] <... set_robust_list resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 375] chdir("./19" [pid 374] <... mkdirat resumed>) = 0 [pid 375] <... chdir resumed>) = 0 [pid 375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 375] <... prctl resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 375] setpgid(0, 0) = 0 [pid 297] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 375] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 375] write(3, "1000", 4) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 375] close(3) = 0 [pid 297] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 375] symlink("/dev/binderfs", "./binderfs" executing program [pid 374] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 375] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 375] write(1, "executing program\n", 18) = 18 [pid 375] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 374] <... mount resumed>) = 0 [pid 374] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 375] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 375] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] newfstatat(AT_FDCWD, "./16/binderfs2", [pid 374] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 375] <... mount resumed>) = 0 [pid 374] exit_group(0 [pid 297] umount2("./16/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 375] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 374] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 375] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./16/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 375] exit_group(0 [pid 297] newfstatat(4, "", [pid 375] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 375] +++ exited with 0 +++ [pid 374] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] close(4 [pid 299] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./16/binderfs2" [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 297] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./16/binderfs" [pid 299] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] rmdir("./16" [pid 299] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./18/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./17", 0777 [pid 299] openat(AT_FDCWD, "./18/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 298] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] rmdir("./18/binderfs2" [pid 298] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./19/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 376 attached ) = -1 EINVAL (Invalid argument) [pid 376] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./19/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 376 [pid 376] <... set_robust_list resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./18/binderfs", [pid 298] <... openat resumed>) = 4 [pid 376] chdir("./17" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(4, "", [pid 376] <... chdir resumed>) = 0 [pid 299] unlink("./18/binderfs" [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 376] <... prctl resumed>) = 0 [pid 298] getdents64(4, [pid 376] setpgid(0, 0) = 0 [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 376] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] close(4) = 0 [pid 299] rmdir("./18" [pid 376] write(3, "1000", 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] rmdir("./19/binderfs2" [pid 376] <... write resumed>) = 4 [pid 300] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 376] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 376] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 376] symlink("/dev/binderfs", "./binderfs" executing program [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 376] <... symlink resumed>) = 0 [pid 299] mkdir("./19", 0777 [pid 376] write(1, "executing program\n", 18 [pid 298] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 376] <... write resumed>) = 18 [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 376] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./19/binderfs", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 376] <... mkdirat resumed>) = 0 [pid 298] unlink("./19/binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 376] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 377 attached [pid 376] <... mount resumed>) = 0 [pid 298] rmdir("./19" [pid 377] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 377] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./18/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 377 [pid 300] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 376] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./20", 0777 [pid 377] chdir("./19" [pid 376] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./18/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 377] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(4, "", [pid 377] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 377] setpgid(0, 0 [pid 376] exit_group(0) = ? [pid 300] getdents64(4, [pid 377] <... setpgid resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 376] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 378 attached [pid 377] <... openat resumed>) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, [pid 378] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 378 [pid 377] write(3, "1000", 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 378] <... set_robust_list resumed>) = 0 [pid 300] close(4 [pid 377] <... write resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 377] close(3 [pid 300] rmdir("./18/binderfs2" [pid 377] <... close resumed>) = 0 [pid 378] chdir("./20") = 0 [pid 378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 377] symlink("/dev/binderfs", "./binderfs" [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 [pid 377] <... symlink resumed>) = 0 [pid 300] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 378] <... close resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 378] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 378] <... symlink resumed>) = 0 executing program [pid 377] write(1, "executing program\n", 18 [pid 300] newfstatat(AT_FDCWD, "./18/binderfs", [pid 378] write(1, "executing program\n", 18 executing program [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./18/binderfs" [pid 377] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 378] <... write resumed>) = 18 [pid 297] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 378] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 377] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(3, "", [pid 378] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 377] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 378] <... mount resumed>) = 0 [pid 377] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3) = 0 [pid 300] rmdir("./18") = 0 [pid 297] <... umount2 resumed>) = 0 [pid 378] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 378] exit_group(0 [pid 300] mkdir("./19", 0777 [pid 377] <... mount resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 378] <... exit_group resumed>) = ? [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 377] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 378] +++ exited with 0 +++ [pid 297] newfstatat(AT_FDCWD, "./17/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./17/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 379 attached [pid 377] <... openat resumed>) = 3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 379 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 379] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 377] exit_group(0 [pid 379] <... set_robust_list resumed>) = 0 [pid 297] openat(AT_FDCWD, "./17/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 377] <... exit_group resumed>) = ? [pid 379] chdir("./19" [pid 297] <... openat resumed>) = 4 [pid 377] +++ exited with 0 +++ [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 379] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(4, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 379] <... prctl resumed>) = 0 [pid 379] setpgid(0, 0 [pid 297] getdents64(4, [pid 379] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] rmdir("./17/binderfs2" [pid 298] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 379] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 379] write(3, "1000", 4 [pid 297] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 379] <... write resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 379] close(3 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 379] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./17/binderfs", [pid 379] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./20/binderfs2", [pid 379] <... symlink resumed>) = 0 [pid 297] unlink("./17/binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./20/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, executing program 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 379] write(1, "executing program\n", 18 [pid 297] getdents64(3, [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 379] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] rmdir("./20/binderfs2" [pid 379] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./17" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./20/binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./20" [pid 379] <... mkdirat resumed>) = 0 [pid 297] mkdir("./18", 0777 [pid 379] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./21", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 380 attached [pid 379] <... mount resumed>) = 0 [pid 380] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 380] chdir("./21" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 380 [pid 380] <... chdir resumed>) = 0 [pid 380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 380] setpgid(0, 0) = 0 [pid 380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 380] write(3, "1000", 4) = 4 [pid 380] close(3) = 0 [pid 380] symlink("/dev/binderfs", "./binderfs") = 0 [pid 380] write(1, "executing program\n", 18 [pid 299] <... restart_syscall resumed>) = 0 executing program [pid 379] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 381 ./strace-static-x86_64: Process 381 attached [pid 380] <... write resumed>) = 18 [pid 381] set_robust_list(0x5555726b0660, 24 [pid 380] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 379] <... openat resumed>) = 3 [pid 299] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 381] <... set_robust_list resumed>) = 0 [pid 380] <... mkdirat resumed>) = 0 [pid 381] chdir("./18" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 381] <... chdir resumed>) = 0 [pid 381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 380] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 381] setpgid(0, 0 [pid 380] <... mount resumed>) = 0 [pid 379] exit_group(0 [pid 299] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 381] <... setpgid resumed>) = 0 [pid 379] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 3 [pid 381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 381] write(3, "1000", 4 [pid 380] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 381] <... write resumed>) = 4 [pid 380] <... openat resumed>) = 3 [pid 381] close(3 [pid 379] +++ exited with 0 +++ [pid 299] newfstatat(3, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 381] <... close resumed>) = 0 [pid 380] exit_group(0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 381] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(3, [pid 381] <... symlink resumed>) = 0 [pid 380] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 381] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = 0 executing program [pid 381] <... write resumed>) = 18 [pid 381] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 380] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./19/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 381] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 381] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 381] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./19/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 381] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 381] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 381] <... exit_group resumed>) = ? [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 381] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=381, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] rmdir("./19/binderfs2") = 0 [pid 299] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./19/binderfs" [pid 298] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] close(3) = 0 [pid 298] newfstatat(3, "", [pid 299] rmdir("./19" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./20", 0777 [pid 297] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./21/binderfs2", [pid 297] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 ./strace-static-x86_64: Process 382 attached [pid 300] newfstatat(3, "", [pid 298] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 382] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 382] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 298] openat(AT_FDCWD, "./21/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 382] chdir("./20" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 382 [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 382] <... chdir resumed>) = 0 [pid 300] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] getdents64(3, [pid 382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 382] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 297] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 382] setpgid(0, 0) = 0 [pid 300] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./19/binderfs2", [pid 298] getdents64(4, [pid 382] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 382] write(3, "1000", 4 [pid 300] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 382] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 297] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 382] close(3 [pid 300] openat(AT_FDCWD, "./19/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./18/binderfs2", [pid 382] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] rmdir("./21/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 382] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(4, "", [pid 382] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./18/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 382] write(1, "executing program\n", 18executing program [pid 300] getdents64(4, [pid 298] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 382] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./18/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 382] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./21/binderfs", [pid 297] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(4, "", [pid 300] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 298] unlink("./21/binderfs" [pid 297] getdents64(4, [pid 382] <... mkdirat resumed>) = 0 [pid 300] rmdir("./19/binderfs2" [pid 298] <... unlink resumed>) = 0 [pid 382] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(3, [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./19/binderfs", [pid 298] close(3 [pid 297] rmdir("./18/binderfs2" [pid 382] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./19/binderfs" [pid 298] <... close resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 382] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... unlink resumed>) = 0 [pid 298] rmdir("./21" [pid 382] <... openat resumed>) = 3 [pid 297] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 382] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 382] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./22", 0777 [pid 297] newfstatat(AT_FDCWD, "./18/binderfs", [pid 300] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./19" [pid 297] unlink("./18/binderfs" [pid 382] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] mkdir("./20", 0777 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 383 attached [pid 297] close(3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 383] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 383 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./18"./strace-static-x86_64: Process 384 attached [pid 383] <... set_robust_list resumed>) = 0 [pid 384] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 384 [pid 384] <... set_robust_list resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 383] chdir("./22" [pid 384] chdir("./20") = 0 [pid 384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 383] <... chdir resumed>) = 0 [pid 297] mkdir("./19", 0777 [pid 384] setpgid(0, 0 [pid 383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... mkdir resumed>) = 0 [pid 384] <... setpgid resumed>) = 0 [pid 383] <... prctl resumed>) = 0 [pid 384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 383] setpgid(0, 0) = 0 [pid 383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 384] <... openat resumed>) = 3 [pid 384] write(3, "1000", 4 [pid 383] <... openat resumed>) = 3 [pid 384] <... write resumed>) = 4 [pid 384] close(3) = 0 [pid 384] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 384] write(1, "executing program\n", 18) = 18 [pid 383] write(3, "1000", 4./strace-static-x86_64: Process 385 attached [pid 385] set_robust_list(0x5555726b0660, 24 [pid 383] <... write resumed>) = 4 [pid 385] <... set_robust_list resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 385 [pid 385] chdir("./19" [pid 384] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 383] close(3 [pid 385] <... chdir resumed>) = 0 [pid 383] <... close resumed>) = 0 [pid 383] symlink("/dev/binderfs", "./binderfs" [pid 385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 385] setpgid(0, 0) = 0 [pid 383] <... symlink resumed>) = 0 [pid 385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 384] <... mkdirat resumed>) = 0 [pid 385] write(3, "1000", 4) = 4 [pid 385] close(3) = 0 [pid 384] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 383] write(1, "executing program\n", 18 [pid 299] <... restart_syscall resumed>) = 0 [pid 385] symlink("/dev/binderfs", "./binderfs" [pid 384] <... mount resumed>) = 0 [pid 383] <... write resumed>) = 18 [pid 385] <... symlink resumed>) = 0 executing program [pid 384] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 383] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 385] write(1, "executing program\n", 18) = 18 [pid 384] <... openat resumed>) = 3 [pid 299] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 385] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 383] <... mkdirat resumed>) = 0 [pid 384] exit_group(0 [pid 383] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 385] <... mkdirat resumed>) = 0 [pid 385] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 383] <... mount resumed>) = 0 [pid 384] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 385] <... mount resumed>) = 0 [pid 385] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 385] exit_group(0) = ? [pid 384] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 383] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 385] +++ exited with 0 +++ [pid 383] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 383] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 [pid 383] <... exit_group resumed>) = ? [pid 300] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 383] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./20/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./20/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./20/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./20/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... openat resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./20/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] close(4 [pid 297] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] rmdir("./20/binderfs2" [pid 297] getdents64(3, [pid 300] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./20/binderfs", [pid 299] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./20/binderfs", [pid 297] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./20/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./19/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 297] umount2("./19/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3) = 0 [pid 297] openat(AT_FDCWD, "./19/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./20" [pid 297] <... openat resumed>) = 4 [pid 300] unlink("./20/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 300] close(3) = 0 [pid 299] mkdir("./21", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./20" [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./21", 0777 [pid 297] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] rmdir("./19/binderfs2" [pid 300] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 386 [pid 297] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 386 attached [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 386] set_robust_list(0x5555726b0660, 24 [pid 297] unlink("./19/binderfs") = 0 [pid 297] getdents64(3, [pid 386] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 387 attached [pid 387] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 387] chdir("./21" [pid 297] close(3) = 0 [pid 387] <... chdir resumed>) = 0 [pid 297] rmdir("./19" [pid 387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 386] chdir("./21" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 387 [pid 386] <... chdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 387] <... prctl resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] mkdir("./20", 0777 [pid 387] setpgid(0, 0 [pid 386] <... prctl resumed>) = 0 [pid 387] <... setpgid resumed>) = 0 [pid 386] setpgid(0, 0 [pid 297] <... mkdir resumed>) = 0 [pid 387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 386] <... setpgid resumed>) = 0 [pid 298] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 387] <... openat resumed>) = 3 [pid 386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 387] write(3, "1000", 4 [pid 386] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 388 attached [pid 387] <... write resumed>) = 4 [pid 386] write(3, "1000", 4 [pid 298] <... openat resumed>) = 3 [pid 388] set_robust_list(0x5555726b0660, 24 [pid 386] <... write resumed>) = 4 [pid 388] <... set_robust_list resumed>) = 0 [pid 386] close(3 [pid 298] newfstatat(3, "", [pid 387] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 387] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 388 [pid 387] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 387] <... symlink resumed>) = 0 [pid 386] <... close resumed>) = 0 [pid 298] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 386] symlink("/dev/binderfs", "./binderfs" [pid 387] write(1, "executing program\n", 18 executing program executing program [pid 386] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 388] chdir("./20" [pid 386] write(1, "executing program\n", 18 [pid 388] <... chdir resumed>) = 0 [pid 387] <... write resumed>) = 18 [pid 386] <... write resumed>) = 18 [pid 298] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 387] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 386] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 388] <... prctl resumed>) = 0 [pid 387] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 388] setpgid(0, 0 [pid 386] <... mkdirat resumed>) = 0 [pid 388] <... setpgid resumed>) = 0 [pid 387] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./22/binderfs2", [pid 388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 386] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 388] <... openat resumed>) = 3 [pid 388] write(3, "1000", 4) = 4 [pid 387] <... mount resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 388] close(3) = 0 [pid 388] symlink("/dev/binderfs", "./binderfs") = 0 [pid 386] <... mount resumed>) = 0 [pid 298] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 387] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 386] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 388] write(1, "executing program\n", 18 [pid 387] <... openat resumed>) = 3 [pid 386] <... openat resumed>) = 3 executing program [pid 298] openat(AT_FDCWD, "./22/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 388] <... write resumed>) = 18 [pid 387] exit_group(0 [pid 386] exit_group(0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 388] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 387] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 388] <... mkdirat resumed>) = 0 [pid 386] <... exit_group resumed>) = ? [pid 298] getdents64(4, [pid 388] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 386] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 387] +++ exited with 0 +++ [pid 298] getdents64(4, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] close(4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 388] <... mount resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 388] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] rmdir("./22/binderfs2" [pid 388] exit_group(0) = ? [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./22/binderfs", [pid 388] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] unlink("./22/binderfs" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./22") = 0 [pid 298] mkdir("./23", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 389 attached [pid 300] <... restart_syscall resumed>) = 0 [pid 389] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 389 [pid 389] <... set_robust_list resumed>) = 0 [pid 389] chdir("./23") = 0 [pid 389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 389] setpgid(0, 0) = 0 [pid 389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 389] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 389] write(3, "1000", 4) = 4 [pid 389] close(3) = 0 [pid 389] symlink("/dev/binderfs", "./binderfs" [pid 300] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 389] <... symlink resumed>) = 0 [pid 300] <... openat resumed>) = 3 executing program [pid 389] write(1, "executing program\n", 18 [pid 300] newfstatat(3, "", [pid 389] <... write resumed>) = 18 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 389] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, [pid 389] <... mkdirat resumed>) = 0 [pid 389] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 389] <... mount resumed>) = 0 [pid 389] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 300] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 389] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 389] exit_group(0) = ? [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 389] +++ exited with 0 +++ [pid 300] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(AT_FDCWD, "./21/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./21/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./21/binderfs2" [pid 297] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./20/binderfs2", [pid 299] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./21/binderfs" [pid 297] umount2("./20/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./21/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./20/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./21/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./21") = 0 [pid 297] newfstatat(4, "", [pid 300] mkdir("./22", 0777 [pid 299] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(4, "", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] getdents64(4, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4./strace-static-x86_64: Process 390 attached ) = 0 [pid 297] close(4 [pid 299] rmdir("./21/binderfs2" [pid 297] <... close resumed>) = 0 [pid 390] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 390 [pid 390] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./20/binderfs2" [pid 390] chdir("./22" [pid 299] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 390] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./21/binderfs", [pid 297] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./21/binderfs" [pid 297] newfstatat(AT_FDCWD, "./20/binderfs", [pid 390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... unlink resumed>) = 0 [pid 390] <... prctl resumed>) = 0 [pid 298] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 390] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 390] <... setpgid resumed>) = 0 [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./20/binderfs" [pid 390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(3 [pid 298] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... unlink resumed>) = 0 [pid 390] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 390] write(3, "1000", 4 [pid 298] <... openat resumed>) = 3 [pid 299] rmdir("./21" [pid 297] getdents64(3, [pid 390] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 390] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 390] <... close resumed>) = 0 [pid 390] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(3, [pid 297] close(3 [pid 299] mkdir("./22", 0777 [pid 297] <... close resumed>) = 0 [pid 390] <... symlink resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] rmdir("./20" [pid 298] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 390] write(1, "executing program\n", 18) = 18 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 390] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 391 attached [pid 297] mkdir("./21", 0777 [pid 390] <... mkdirat resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 391 [pid 297] <... mkdir resumed>) = 0 [pid 391] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 391] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 391] chdir("./22" [pid 390] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./23/binderfs2", [pid 391] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 391] <... prctl resumed>) = 0 [pid 390] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 391] setpgid(0, 0 [pid 390] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] openat(AT_FDCWD, "./23/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 392 attached [pid 391] <... setpgid resumed>) = 0 [pid 392] set_robust_list(0x5555726b0660, 24 [pid 298] <... openat resumed>) = 4 [pid 392] <... set_robust_list resumed>) = 0 [pid 391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 390] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 392] chdir("./21" [pid 390] exit_group(0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 392 [pid 392] <... chdir resumed>) = 0 [pid 391] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 390] <... exit_group resumed>) = ? [pid 391] write(3, "1000", 4) = 4 [pid 392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 392] setpgid(0, 0) = 0 [pid 390] +++ exited with 0 +++ [pid 391] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 391] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 391] symlink("/dev/binderfs", "./binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 391] <... symlink resumed>) = 0 [pid 298] close(4 [pid 392] <... openat resumed>) = 3 executing program [pid 391] write(1, "executing program\n", 18 [pid 298] <... close resumed>) = 0 [pid 392] write(3, "1000", 4 [pid 391] <... write resumed>) = 18 [pid 392] <... write resumed>) = 4 [pid 298] rmdir("./23/binderfs2" [pid 392] close(3 [pid 391] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 392] <... close resumed>) = 0 [pid 392] symlink("/dev/binderfs", "./binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 392] <... symlink resumed>) = 0 [pid 391] <... mkdirat resumed>) = 0 [pid 298] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 391] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 392] write(1, "executing program\n", 18) = 18 [pid 392] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 391] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./23/binderfs", [pid 391] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 392] <... mkdirat resumed>) = 0 [pid 391] <... openat resumed>) = 3 [pid 298] unlink("./23/binderfs" [pid 391] exit_group(0 [pid 298] <... unlink resumed>) = 0 [pid 391] <... exit_group resumed>) = ? [pid 298] getdents64(3, [pid 392] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 391] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./23" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./24", 0777 [pid 299] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 392] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(3, "", [pid 392] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 392] exit_group(0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 393 attached [pid 392] <... exit_group resumed>) = ? [pid 393] set_robust_list(0x5555726b0660, 24 [pid 392] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 393] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 393 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 393] chdir("./24") = 0 [pid 299] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 393] setpgid(0, 0 [pid 300] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./22/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 393] <... setpgid resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(3, "", [pid 299] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 393] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 393] write(3, "1000", 4 [pid 300] getdents64(3, [pid 299] openat(AT_FDCWD, "./22/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 393] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 393] close(3 [pid 300] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] <... close resumed>) = 0 [pid 393] symlink("/dev/binderfs", "./binderfs" [pid 299] <... openat resumed>) = 4 [pid 297] getdents64(3, [pid 299] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 393] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] write(1, "executing program\n", 18 [pid 300] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 393] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 393] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(AT_FDCWD, "./22/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 393] <... mkdirat resumed>) = 0 [pid 299] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 393] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... close resumed>) = 0 [pid 300] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./22/binderfs2") = 0 [pid 297] newfstatat(AT_FDCWD, "./21/binderfs2", [pid 393] <... mount resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 393] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./21/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./22/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 393] exit_group(0 [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 393] <... exit_group resumed>) = ? [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./21/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./22/binderfs", [pid 297] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(4, "", [pid 393] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./22/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] <... unlink resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] close(3 [pid 297] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] rmdir("./22/binderfs2" [pid 299] rmdir("./22" [pid 297] close(4 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./21/binderfs2" [pid 300] unlink("./22/binderfs") = 0 [pid 299] mkdir("./23", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./22" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 394 attached [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] newfstatat(AT_FDCWD, "./21/binderfs", [pid 394] set_robust_list(0x5555726b0660, 24 [pid 300] mkdir("./23", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 394] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./21/binderfs" [pid 394] chdir("./23" [pid 300] <... mkdir resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 394] <... chdir resumed>) = 0 [pid 394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 394 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, ./strace-static-x86_64: Process 395 attached [pid 394] <... prctl resumed>) = 0 [pid 298] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 395] set_robust_list(0x5555726b0660, 24 [pid 297] close(3) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./21" [pid 395] <... set_robust_list resumed>) = 0 [pid 394] setpgid(0, 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 395 [pid 298] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 394] <... setpgid resumed>) = 0 [pid 394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 395] chdir("./23" [pid 297] mkdir("./22", 0777 [pid 395] <... chdir resumed>) = 0 [pid 394] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./24/binderfs2", [pid 297] <... mkdir resumed>) = 0 [pid 395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 394] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 395] <... prctl resumed>) = 0 [pid 394] <... write resumed>) = 4 [pid 298] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 394] close(3 [pid 395] setpgid(0, 0 [pid 394] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 395] <... setpgid resumed>) = 0 [pid 395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 394] symlink("/dev/binderfs", "./binderfs" [pid 298] openat(AT_FDCWD, "./24/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 396 attached [pid 395] <... openat resumed>) = 3 [pid 394] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 396] set_robust_list(0x5555726b0660, 24 [pid 395] write(3, "1000", 4 [pid 396] <... set_robust_list resumed>) = 0 [pid 298] newfstatat(4, "", [pid 394] write(1, "executing program\n", 18 [pid 395] <... write resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 396] chdir("./22" [pid 395] close(3 [pid 394] <... write resumed>) = 18 [pid 298] getdents64(4, [pid 396] <... chdir resumed>) = 0 [pid 395] <... close resumed>) = 0 [pid 394] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 395] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 396 [pid 396] <... prctl resumed>) = 0 [pid 395] <... symlink resumed>) = 0 [pid 394] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, executing program [pid 396] setpgid(0, 0 [pid 395] write(1, "executing program\n", 18 [pid 394] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 396] <... setpgid resumed>) = 0 [pid 395] <... write resumed>) = 18 [pid 298] close(4) = 0 [pid 394] <... mount resumed>) = 0 [pid 298] rmdir("./24/binderfs2" [pid 396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 395] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 394] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 395] <... mkdirat resumed>) = 0 [pid 394] <... openat resumed>) = 3 [pid 395] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 394] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 395] <... mount resumed>) = 0 [pid 298] unlink("./24/binderfs" [pid 396] <... openat resumed>) = 3 [pid 395] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 394] <... exit_group resumed>) = ? [pid 298] <... unlink resumed>) = 0 [pid 396] write(3, "1000", 4 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./24" [pid 396] <... write resumed>) = 4 [pid 394] +++ exited with 0 +++ [pid 395] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 396] close(3 [pid 395] exit_group(0 [pid 299] --- 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] <... close resumed>) = 0 [pid 395] <... exit_group resumed>) = ? [pid 396] symlink("/dev/binderfs", "./binderfs" [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 395] +++ exited with 0 +++ [pid 299] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 396] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./25", 0777 [pid 396] write(1, "executing program\n", 18 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 396] <... write resumed>) = 18 [pid 299] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 396] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 396] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 396] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 397 attached [pid 299] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] set_robust_list(0x5555726b0660, 24 [pid 396] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 397] <... set_robust_list resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 396] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(3, "", [pid 397] chdir("./25" [pid 396] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 397 [pid 397] <... chdir resumed>) = 0 [pid 396] exit_group(0 [pid 300] getdents64(3, [pid 299] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 396] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 397] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./23/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 396] +++ exited with 0 +++ [pid 300] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 397] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./23/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 397] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 397] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./23/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 397] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 397] close(3 [pid 300] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 397] symlink("/dev/binderfs", "./binderfs" [pid 300] openat(AT_FDCWD, "./23/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY executing program [pid 397] <... symlink resumed>) = 0 [pid 299] getdents64(4, [pid 397] write(1, "executing program\n", 18 [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 397] <... write resumed>) = 18 [pid 300] newfstatat(4, "", [pid 299] getdents64(4, [pid 397] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 397] <... mkdirat resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 397] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./23/binderfs2") = 0 [pid 397] <... mount resumed>) = 0 [pid 300] getdents64(4, [pid 397] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 397] <... openat resumed>) = 3 [pid 300] close(4 [pid 299] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 397] <... exit_group resumed>) = ? [pid 300] rmdir("./23/binderfs2" [pid 299] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./23/binderfs" [pid 397] +++ exited with 0 +++ [pid 299] <... unlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(AT_FDCWD, "./23/binderfs", [pid 299] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] unlink("./23/binderfs" [pid 299] close(3 [pid 300] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./23" [pid 300] close(3) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] rmdir("./23" [pid 299] mkdir("./24", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] mkdir("./24", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 398 attached ) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 399 attached [pid 398] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 398 [pid 399] set_robust_list(0x5555726b0660, 24) = 0 [pid 398] <... set_robust_list resumed>) = 0 [pid 298] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 399] chdir("./24" [pid 398] chdir("./24" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 399 [pid 298] <... openat resumed>) = 3 [pid 399] <... chdir resumed>) = 0 [pid 398] <... chdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 399] <... prctl resumed>) = 0 [pid 398] <... prctl resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 399] setpgid(0, 0 [pid 398] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 399] <... setpgid resumed>) = 0 [pid 398] <... setpgid resumed>) = 0 [pid 399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 399] <... openat resumed>) = 3 [pid 398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 399] write(3, "1000", 4) = 4 [pid 398] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 399] close(3 [pid 398] write(3, "1000", 4 [pid 399] <... close resumed>) = 0 [pid 398] <... write resumed>) = 4 [pid 399] symlink("/dev/binderfs", "./binderfs" [pid 398] close(3 [pid 298] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./25/binderfs2", [pid 399] <... symlink resumed>) = 0 [pid 398] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 399] write(1, "executing program\n", 18 [pid 398] symlink("/dev/binderfs", "./binderfs"executing program [pid 399] <... write resumed>) = 18 [pid 398] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 399] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 398] write(1, "executing program\n", 18 [pid 298] openat(AT_FDCWD, "./25/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 399] <... mkdirat resumed>) = 0 [pid 398] <... write resumed>) = 18 [pid 298] <... openat resumed>) = 4 [pid 399] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 398] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 399] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 399] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 398] <... mkdirat resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./22/binderfs2", [pid 398] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] rmdir("./25/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./22/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 399] <... openat resumed>) = 3 [pid 398] <... mount resumed>) = 0 [pid 399] exit_group(0 [pid 398] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 399] <... exit_group resumed>) = ? [pid 398] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./22/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 399] +++ exited with 0 +++ [pid 398] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./25/binderfs", [pid 297] newfstatat(4, "", [pid 398] <... exit_group resumed>) = ? [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] unlink("./25/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 398] +++ exited with 0 +++ [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(3, [pid 297] getdents64(4, [pid 300] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] close(4 [pid 300] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] <... openat resumed>) = 3 [pid 298] rmdir("./25" [pid 297] rmdir("./22/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 298] mkdir("./26", 0777 [pid 300] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./22/binderfs", [pid 300] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 400 attached [pid 300] newfstatat(AT_FDCWD, "./24/binderfs2", [pid 400] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./22/binderfs" [pid 400] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 400] chdir("./26" [pid 300] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./24/binderfs2", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 400 [pid 297] getdents64(3, [pid 400] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] openat(AT_FDCWD, "./24/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 400] <... prctl resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 400] setpgid(0, 0 [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 400] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./24/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./22" [pid 400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(4, [pid 400] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 400] write(3, "1000", 4 [pid 300] getdents64(4, [pid 299] newfstatat(4, "", [pid 400] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./23", 0777 [pid 400] close(3 [pid 300] close(4 [pid 299] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 400] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 400] symlink("/dev/binderfs", "./binderfs" [pid 300] rmdir("./24/binderfs2" [pid 299] getdents64(4, [pid 400] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 300] <... rmdir resumed>) = 0 [pid 400] write(1, "executing program\n", 18 [pid 299] close(4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 400] <... write resumed>) = 18 [pid 300] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 ./strace-static-x86_64: Process 401 attached [pid 400] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./24/binderfs2" [pid 401] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(AT_FDCWD, "./24/binderfs", [pid 401] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 401] chdir("./23" [pid 400] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] unlink("./24/binderfs" [pid 401] <... chdir resumed>) = 0 [pid 400] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 401 [pid 401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 401] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 401] setpgid(0, 0 [pid 400] <... mount resumed>) = 0 [pid 300] getdents64(3, [pid 299] newfstatat(AT_FDCWD, "./24/binderfs", [pid 401] <... setpgid resumed>) = 0 [pid 400] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 400] <... openat resumed>) = 3 [pid 401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 401] <... openat resumed>) = 3 [pid 300] rmdir("./24" [pid 299] unlink("./24/binderfs" [pid 401] write(3, "1000", 4 [pid 400] exit_group(0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 401] <... write resumed>) = 4 [pid 400] <... exit_group resumed>) = ? [pid 300] mkdir("./25", 0777 [pid 299] getdents64(3, [pid 401] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 400] +++ exited with 0 +++ [pid 299] rmdir("./24" [pid 401] <... close resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 401] symlink("/dev/binderfs", "./binderfs" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 401] <... symlink resumed>) = 0 [pid 299] mkdir("./25", 0777 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=400, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program ./strace-static-x86_64: Process 402 attached [pid 401] write(1, "executing program\n", 18 [pid 299] <... mkdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 402 [pid 402] set_robust_list(0x5555726b0660, 24 [pid 401] <... write resumed>) = 18 [pid 402] <... set_robust_list resumed>) = 0 [pid 401] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 402] chdir("./25" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 401] <... mkdirat resumed>) = 0 [pid 402] <... chdir resumed>) = 0 [pid 401] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 402] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 403 attached ) = 0 [pid 401] <... mount resumed>) = 0 [pid 403] set_robust_list(0x5555726b0660, 24 [pid 402] setpgid(0, 0 [pid 401] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 403] <... set_robust_list resumed>) = 0 [pid 402] <... setpgid resumed>) = 0 [pid 401] <... openat resumed>) = 3 [pid 403] chdir("./25" [pid 402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 403 [pid 403] <... chdir resumed>) = 0 [pid 401] exit_group(0 [pid 403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 402] <... openat resumed>) = 3 [pid 401] <... exit_group resumed>) = ? [pid 403] <... prctl resumed>) = 0 [pid 402] write(3, "1000", 4) = 4 [pid 401] +++ exited with 0 +++ [pid 403] setpgid(0, 0) = 0 [pid 402] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 402] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 402] symlink("/dev/binderfs", "./binderfs" [pid 403] <... openat resumed>) = 3 [pid 402] <... symlink resumed>) = 0 [pid 403] write(3, "1000", 4) = 4 [pid 403] close(3) = 0 [pid 402] write(1, "executing program\n", 18 [pid 403] symlink("/dev/binderfs", "./binderfs"executing program executing program ) = 0 [pid 403] write(1, "executing program\n", 18 [pid 402] <... write resumed>) = 18 [pid 298] <... restart_syscall resumed>) = 0 [pid 403] <... write resumed>) = 18 [pid 402] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 403] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 402] <... mkdirat resumed>) = 0 [pid 298] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 403] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 402] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 403] <... mount resumed>) = 0 [pid 402] <... mount resumed>) = 0 [pid 298] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 403] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 403] exit_group(0) = ? [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 402] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 403] +++ exited with 0 +++ [pid 402] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 402] exit_group(0) = ? [pid 299] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 402] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./26/binderfs2", [pid 299] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] openat(AT_FDCWD, "./26/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 297] newfstatat(3, "", [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./25/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(4 [pid 299] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./26/binderfs2" [pid 299] openat(AT_FDCWD, "./25/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./26/binderfs", [pid 297] newfstatat(AT_FDCWD, "./23/binderfs2", [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./25/binderfs2" [pid 298] unlink("./26/binderfs" [pid 297] umount2("./23/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] openat(AT_FDCWD, "./23/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./25/binderfs", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 297] newfstatat(4, "", [pid 300] <... openat resumed>) = 3 [pid 299] unlink("./25/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(3, "", [pid 299] <... unlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] rmdir("./26" [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] rmdir("./25" [pid 298] mkdir("./27", 0777 [pid 297] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 299] mkdir("./26", 0777 [pid 300] newfstatat(AT_FDCWD, "./25/binderfs2", [pid 297] rmdir("./23/binderfs2" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./25/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 405 attached ./strace-static-x86_64: Process 404 attached [pid 300] getdents64(4, [pid 404] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 404] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 404] chdir("./27" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 404] <... chdir resumed>) = 0 [pid 300] close(4 [pid 405] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 405 [pid 405] <... set_robust_list resumed>) = 0 [pid 404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 404 [pid 297] newfstatat(AT_FDCWD, "./23/binderfs", [pid 404] <... prctl resumed>) = 0 [pid 300] rmdir("./25/binderfs2" [pid 405] chdir("./26" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 405] <... chdir resumed>) = 0 [pid 404] setpgid(0, 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] unlink("./23/binderfs" [pid 405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 404] <... setpgid resumed>) = 0 [pid 300] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 405] <... prctl resumed>) = 0 [pid 404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 405] setpgid(0, 0 [pid 404] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./25/binderfs", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 405] <... setpgid resumed>) = 0 [pid 404] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 404] <... write resumed>) = 4 [pid 300] unlink("./25/binderfs" [pid 297] <... close resumed>) = 0 [pid 404] close(3 [pid 405] <... openat resumed>) = 3 [pid 404] <... close resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] rmdir("./23" [pid 404] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(3, executing program [pid 405] write(3, "1000", 4 [pid 404] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 405] <... write resumed>) = 4 [pid 404] write(1, "executing program\n", 18 [pid 300] close(3 [pid 405] close(3 [pid 404] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 297] mkdir("./24", 0777 [pid 405] <... close resumed>) = 0 [pid 404] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./25" [pid 297] <... mkdir resumed>) = 0 [pid 405] symlink("/dev/binderfs", "./binderfs") = 0 [pid 404] <... mkdirat resumed>) = 0 [pid 405] write(1, "executing program\n", 18 [pid 300] <... rmdir resumed>) = 0 [pid 404] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] mkdir("./26", 0777executing program [pid 405] <... write resumed>) = 18 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 405] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 404] <... mount resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 406 attached [pid 405] <... mkdirat resumed>) = 0 [pid 404] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 406] set_robust_list(0x5555726b0660, 24) = 0 [pid 405] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 407 attached [pid 404] <... openat resumed>) = 3 [pid 406] chdir("./24" [pid 407] set_robust_list(0x5555726b0660, 24 [pid 406] <... chdir resumed>) = 0 [pid 405] <... mount resumed>) = 0 [pid 404] exit_group(0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 406 [pid 407] <... set_robust_list resumed>) = 0 [pid 406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 407] chdir("./26" [pid 406] <... prctl resumed>) = 0 [pid 404] <... exit_group resumed>) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 407 [pid 405] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 407] <... chdir resumed>) = 0 [pid 406] setpgid(0, 0 [pid 405] <... openat resumed>) = 3 [pid 404] +++ exited with 0 +++ [pid 407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 406] <... setpgid resumed>) = 0 [pid 405] exit_group(0 [pid 407] <... prctl resumed>) = 0 [pid 407] setpgid(0, 0 [pid 406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 405] <... exit_group resumed>) = ? [pid 298] --- 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] <... setpgid resumed>) = 0 [pid 407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 406] <... openat resumed>) = 3 [pid 405] +++ exited with 0 +++ [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 407] <... openat resumed>) = 3 [pid 406] write(3, "1000", 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 407] write(3, "1000", 4 [pid 406] <... write resumed>) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 407] <... write resumed>) = 4 [pid 406] close(3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 407] close(3 [pid 406] <... close resumed>) = 0 [pid 298] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 407] <... close resumed>) = 0 [pid 406] symlink("/dev/binderfs", "./binderfs" [pid 407] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program executing program [pid 407] <... symlink resumed>) = 0 [pid 406] <... symlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 407] write(1, "executing program\n", 18 [pid 406] write(1, "executing program\n", 18 [pid 298] <... openat resumed>) = 3 [pid 407] <... write resumed>) = 18 [pid 406] <... write resumed>) = 18 [pid 407] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 406] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 407] <... mkdirat resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 407] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 406] <... mkdirat resumed>) = 0 [pid 406] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 407] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 407] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 406] <... mount resumed>) = 0 [pid 298] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 406] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 406] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./27/binderfs2", [pid 407] <... openat resumed>) = 3 [pid 406] exit_group(0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 407] exit_group(0 [pid 406] <... exit_group resumed>) = ? [pid 298] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 407] <... exit_group resumed>) = ? [pid 406] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./27/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 407] +++ exited with 0 +++ [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(4, [pid 299] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 299] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] close(4 [pid 299] newfstatat(3, "", [pid 298] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./27/binderfs2" [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./27/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 299] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./26/binderfs2", [pid 298] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 299] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./27" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./26/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] mkdir("./28", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./26/binderfs2" [pid 297] <... restart_syscall resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 408 attached ) = 3 [pid 297] newfstatat(3, "", [pid 299] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 408] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 408] <... set_robust_list resumed>) = 0 [pid 300] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./26/binderfs", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 408 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./26/binderfs" [pid 297] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 408] chdir("./28" [pid 300] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 408] <... chdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] getdents64(3, [pid 408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 408] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./26" [pid 408] setpgid(0, 0 [pid 300] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./24/binderfs2", [pid 408] <... setpgid resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./24/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./27", 0777 [pid 408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./24/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 408] <... openat resumed>) = 3 [pid 408] write(3, "1000", 4 [pid 297] <... openat resumed>) = 4 [pid 408] <... write resumed>) = 4 [pid 408] close(3 [pid 297] newfstatat(4, "", [pid 408] <... close resumed>) = 0 [pid 300] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 408] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 409 attached [pid 408] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./26/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 409] set_robust_list(0x5555726b0660, 24 [pid 408] write(1, "executing program\n", 18 [pid 409] <... set_robust_list resumed>) = 0 [pid 300] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 409 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 409] chdir("./27" [pid 408] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4) = 0 [pid 409] <... chdir resumed>) = 0 [pid 408] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./26/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] rmdir("./24/binderfs2" [pid 409] setpgid(0, 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./24/binderfs" [pid 300] newfstatat(4, "", [pid 409] <... setpgid resumed>) = 0 [pid 408] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 408] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(3, [pid 409] <... openat resumed>) = 3 [pid 300] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./24" [pid 409] write(3, "1000", 4 [pid 300] rmdir("./26/binderfs2" [pid 409] <... write resumed>) = 4 [pid 408] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 409] close(3 [pid 408] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 409] <... close resumed>) = 0 [pid 409] symlink("/dev/binderfs", "./binderfs" [pid 408] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./25", 0777 [pid 409] <... symlink resumed>) = 0 [pid 408] exit_group(0 [pid 300] newfstatat(AT_FDCWD, "./26/binderfs", [pid 297] <... mkdir resumed>) = 0 [pid 408] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./26/binderfs" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 410 attached [pid 408] +++ exited with 0 +++ [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 410 [pid 410] set_robust_list(0x5555726b0660, 24) = 0 [pid 410] chdir("./25" [pid 409] write(1, "executing program\n", 18 [pid 300] <... unlink resumed>) = 0 executing program [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 409] <... write resumed>) = 18 [pid 410] <... chdir resumed>) = 0 [pid 409] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 410] setpgid(0, 0 [pid 298] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 410] <... setpgid resumed>) = 0 [pid 410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 410] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] close(3 [pid 410] write(3, "1000", 4) = 4 [pid 409] <... mkdirat resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 410] close(3 executing program [pid 300] rmdir("./26" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 410] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 410] symlink("/dev/binderfs", "./binderfs" [pid 409] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 410] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 410] write(1, "executing program\n", 18) = 18 [pid 410] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 409] <... mount resumed>) = 0 [pid 410] <... mkdirat resumed>) = 0 [pid 410] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 409] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] mkdir("./27", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 410] <... mount resumed>) = 0 [pid 410] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... mkdir resumed>) = 0 [pid 409] <... openat resumed>) = 3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 410] <... openat resumed>) = 3 [pid 410] exit_group(0) = ? ./strace-static-x86_64: Process 411 attached [pid 410] +++ exited with 0 +++ [pid 409] exit_group(0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 411 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 409] <... exit_group resumed>) = ? [pid 298] newfstatat(AT_FDCWD, "./28/binderfs2", [pid 411] set_robust_list(0x5555726b0660, 24 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 411] <... set_robust_list resumed>) = 0 [pid 298] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 411] chdir("./27" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 411] <... chdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./28/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [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 [pid 409] +++ exited with 0 +++ [pid 411] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... openat resumed>) = 4 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 411] write(3, "1000", 4) = 4 [pid 298] newfstatat(4, "", [pid 411] close(3) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 411] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 411] <... symlink resumed>) = 0 [pid 298] getdents64(4, [pid 411] write(1, "executing program\n", 18) = 18 [pid 411] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 411] <... mkdirat resumed>) = 0 [pid 298] rmdir("./28/binderfs2" [pid 411] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... rmdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 411] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 411] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 411] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./28/binderfs", [pid 297] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./28/binderfs") = 0 [pid 298] getdents64(3, [pid 411] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] <... umount2 resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./28" [pid 411] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] mkdir("./29", 0777 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./25/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./25/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./25/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", ./strace-static-x86_64: Process 412 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 412] set_robust_list(0x5555726b0660, 24 [pid 299] <... openat resumed>) = 3 [pid 297] getdents64(4, [pid 412] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 412 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 412] chdir("./29" [pid 299] newfstatat(3, "", [pid 297] close(4 [pid 412] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... restart_syscall resumed>) = 0 [pid 299] getdents64(3, [pid 412] <... prctl resumed>) = 0 [pid 412] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] rmdir("./25/binderfs2" [pid 412] <... setpgid resumed>) = 0 [pid 300] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 300] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 412] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(3, "", [pid 297] newfstatat(AT_FDCWD, "./25/binderfs", [pid 299] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 412] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./25/binderfs" [pid 412] <... write resumed>) = 4 [pid 300] getdents64(3, [pid 299] newfstatat(AT_FDCWD, "./27/binderfs2", [pid 297] <... unlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 412] close(3) = 0 [pid 300] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 412] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./27/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 299] <... openat resumed>) = 4 [pid 297] <... close resumed>) = 0 executing program [pid 299] newfstatat(4, "", [pid 297] rmdir("./25" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 412] <... symlink resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 412] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 412] <... write resumed>) = 18 [pid 300] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 297] mkdir("./26", 0777 [pid 299] <... close resumed>) = 0 [pid 412] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 412] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./27/binderfs2", [pid 299] rmdir("./27/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 412] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./27/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 413 attached [pid 412] <... mount resumed>) = 0 [pid 299] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 413] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 413 [pid 413] <... set_robust_list resumed>) = 0 [pid 412] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./27/binderfs", [pid 413] chdir("./26" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] unlink("./27/binderfs" [pid 412] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 413] <... chdir resumed>) = 0 [pid 412] exit_group(0 [pid 300] close(4 [pid 299] <... unlink resumed>) = 0 [pid 413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 413] <... prctl resumed>) = 0 [pid 413] setpgid(0, 0 [pid 300] rmdir("./27/binderfs2" [pid 413] <... setpgid resumed>) = 0 [pid 413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 412] <... exit_group resumed>) = ? [pid 299] getdents64(3, [pid 413] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 413] write(3, "1000", 4 [pid 299] rmdir("./27" [pid 413] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 412] +++ exited with 0 +++ [pid 413] close(3) = 0 [pid 413] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 413] <... symlink resumed>) = 0 [pid 299] mkdir("./28", 0777 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 413] write(1, "executing program\n", 18 [pid 300] newfstatat(AT_FDCWD, "./27/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 413] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 413] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] unlink("./27/binderfs" [pid 298] <... openat resumed>) = 3 [pid 413] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] newfstatat(3, "", [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, ./strace-static-x86_64: Process 414 attached [pid 300] close(3 [pid 413] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 414] set_robust_list(0x5555726b0660, 24 [pid 413] <... mount resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 414 [pid 414] <... set_robust_list resumed>) = 0 [pid 413] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./27" [pid 298] <... umount2 resumed>) = 0 [pid 414] chdir("./28" [pid 413] <... openat resumed>) = 3 [pid 413] exit_group(0) = ? [pid 300] <... rmdir resumed>) = 0 [pid 414] <... chdir resumed>) = 0 [pid 300] mkdir("./28", 0777 [pid 414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 414] setpgid(0, 0 [pid 413] +++ exited with 0 +++ [pid 300] <... mkdir resumed>) = 0 [pid 298] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 414] <... setpgid resumed>) = 0 [pid 414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 414] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./29/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 414] write(3, "1000", 4 [pid 298] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 415 attached [pid 414] <... write resumed>) = 4 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 415 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 415] set_robust_list(0x5555726b0660, 24 [pid 414] close(3 [pid 298] openat(AT_FDCWD, "./29/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 414] <... close resumed>) = 0 [pid 415] <... set_robust_list resumed>) = 0 [pid 414] symlink("/dev/binderfs", "./binderfs" [pid 415] chdir("./28" [pid 298] <... openat resumed>) = 4 [pid 415] <... chdir resumed>) = 0 [pid 415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 414] <... symlink resumed>) = 0 [pid 298] newfstatat(4, "", [pid 415] setpgid(0, 0) = 0 [pid 415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 414] write(1, "executing program\n", 18 [pid 298] getdents64(4, executing program [pid 414] <... write resumed>) = 18 [pid 415] <... openat resumed>) = 3 [pid 414] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 415] write(3, "1000", 4) = 4 [pid 415] close(3) = 0 [pid 415] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 414] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, [pid 415] write(1, "executing program\n", 18) = 18 [pid 415] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 414] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 415] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... close resumed>) = 0 [pid 414] <... mount resumed>) = 0 [pid 298] rmdir("./29/binderfs2" [pid 415] <... mount resumed>) = 0 [pid 415] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 415] exit_group(0 [pid 298] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 414] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./29/binderfs", [pid 415] <... exit_group resumed>) = ? [pid 415] +++ exited with 0 +++ [pid 414] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 414] exit_group(0 [pid 298] unlink("./29/binderfs" [pid 414] <... exit_group resumed>) = ? [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 414] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(3, [pid 297] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] close(3 [pid 297] getdents64(3, [pid 299] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./29" [pid 300] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 297] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./26/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(3, "", [pid 299] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] mkdir("./30", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] umount2("./26/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./26/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./28/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./26/binderfs2" [pid 299] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./28/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 416 attached [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./26/binderfs", [pid 416] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(AT_FDCWD, "./28/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 416] <... set_robust_list resumed>) = 0 [pid 299] getdents64(4, [pid 297] unlink("./26/binderfs" [pid 416] chdir("./30" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 416] <... chdir resumed>) = 0 [pid 299] close(4 [pid 416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... close resumed>) = 0 [pid 416] <... prctl resumed>) = 0 [pid 299] rmdir("./28/binderfs2" [pid 297] getdents64(3, [pid 416] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 416 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 416] <... setpgid resumed>) = 0 [pid 300] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./28/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 416] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 416] write(3, "1000", 4 [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./26" [pid 416] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./28/binderfs", [pid 416] close(3 [pid 300] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./28/binderfs2" [pid 416] <... close resumed>) = 0 [pid 299] unlink("./28/binderfs" [pid 297] mkdir("./27", 0777 [pid 416] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 300] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 416] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 416] write(1, "executing program\n", 18 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 416] <... write resumed>) = 18 [pid 299] close(3 [pid 416] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... close resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./28/binderfs", [pid 416] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./28" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] unlink("./28/binderfs") = 0 [pid 416] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 299] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 417 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 417 [pid 417] set_robust_list(0x5555726b0660, 24) = 0 [pid 417] chdir("./27") = 0 [pid 417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 417] setpgid(0, 0) = 0 [pid 417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 416] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 executing program [pid 417] <... openat resumed>) = 3 [pid 299] mkdir("./29", 0777 [pid 417] write(3, "1000", 4) = 4 [pid 417] close(3) = 0 [pid 417] symlink("/dev/binderfs", "./binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 300] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 [pid 417] <... symlink resumed>) = 0 [pid 417] write(1, "executing program\n", 18) = 18 [pid 417] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 416] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./28"./strace-static-x86_64: Process 418 attached [pid 417] <... mkdirat resumed>) = 0 [pid 418] set_robust_list(0x5555726b0660, 24) = 0 [pid 418] chdir("./29" [pid 300] <... rmdir resumed>) = 0 [pid 418] <... chdir resumed>) = 0 [pid 417] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 416] <... openat resumed>) = 3 [pid 300] mkdir("./29", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 418 [pid 418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 416] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 418] <... prctl resumed>) = 0 [pid 417] <... mount resumed>) = 0 [pid 418] setpgid(0, 0 [pid 416] <... exit_group resumed>) = ? [pid 418] <... setpgid resumed>) = 0 [pid 417] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 417] <... openat resumed>) = 3 [pid 416] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 418] <... openat resumed>) = 3 [pid 417] exit_group(0./strace-static-x86_64: Process 419 attached [pid 418] write(3, "1000", 4 [pid 417] <... exit_group resumed>) = ? [pid 419] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 419 [pid 298] <... restart_syscall resumed>) = 0 [pid 419] <... set_robust_list resumed>) = 0 [pid 419] chdir("./29" [pid 418] <... write resumed>) = 4 [pid 417] +++ exited with 0 +++ [pid 418] close(3) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 419] <... chdir resumed>) = 0 [pid 418] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 419] <... prctl resumed>) = 0 [pid 298] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 419] setpgid(0, 0 [pid 418] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 418] write(1, "executing program\n", 18 [pid 419] <... setpgid resumed>) = 0 executing program [pid 298] newfstatat(3, "", [pid 418] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 418] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] getdents64(3, [pid 419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 418] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 418] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 419] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 419] write(3, "1000", 4) = 4 [pid 418] <... mount resumed>) = 0 [pid 298] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 419] close(3) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 418] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(AT_FDCWD, "./30/binderfs2", [pid 419] symlink("/dev/binderfs", "./binderfs" [pid 418] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 419] <... symlink resumed>) = 0 [pid 418] exit_group(0 [pid 298] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program ) = -1 EINVAL (Invalid argument) [pid 419] write(1, "executing program\n", 18 [pid 418] <... exit_group resumed>) = ? [pid 297] <... restart_syscall resumed>) = 0 [pid 419] <... write resumed>) = 18 [pid 298] openat(AT_FDCWD, "./30/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 419] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 418] +++ exited with 0 +++ [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(4, [pid 297] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 419] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 297] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(4 [pid 419] <... mount resumed>) = 0 [pid 297] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 419] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] rmdir("./30/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 419] <... openat resumed>) = 3 [pid 419] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 419] <... exit_group resumed>) = ? [pid 297] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./30/binderfs", [pid 297] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./30/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 419] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./27/binderfs2", [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 297] umount2("./27/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./30" [pid 297] openat(AT_FDCWD, "./27/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] mkdir("./31", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./29/binderfs2", [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] openat(AT_FDCWD, "./29/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(4, [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 420 attached [pid 300] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./27/binderfs2" [pid 299] getdents64(4, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 420 [pid 420] set_robust_list(0x5555726b0660, 24) = 0 [pid 420] chdir("./31" [pid 300] <... umount2 resumed>) = 0 [pid 420] <... chdir resumed>) = 0 [pid 420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 420] <... prctl resumed>) = 0 [pid 299] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./29/binderfs2", [pid 299] <... close resumed>) = 0 [pid 420] setpgid(0, 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 420] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./29/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./27/binderfs", [pid 420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 420] <... openat resumed>) = 3 [pid 420] write(3, "1000", 4) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./29/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./27/binderfs" [pid 300] <... openat resumed>) = 4 [pid 420] close(3 [pid 300] newfstatat(4, "", [pid 420] <... close resumed>) = 0 [pid 420] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 300] getdents64(4, [pid 420] write(1, "executing program\n", 18executing program ) = 18 [pid 420] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(AT_FDCWD, "./29/binderfs", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 297] getdents64(3, [pid 420] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] unlink("./29/binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 420] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(4) = 0 [pid 297] close(3 [pid 300] rmdir("./29/binderfs2" [pid 297] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] rmdir("./27" [pid 420] <... mount resumed>) = 0 [pid 420] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... unlink resumed>) = 0 [pid 420] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./28", 0777 [pid 300] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 420] exit_group(0) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 420] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./29/binderfs", [pid 299] close(3) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] rmdir("./29" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] unlink("./29/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 421 attached [pid 300] getdents64(3, [pid 299] mkdir("./30", 0777 [pid 421] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 421 [pid 421] <... set_robust_list resumed>) = 0 [pid 300] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 421] chdir("./28" [pid 300] <... close resumed>) = 0 [pid 421] <... chdir resumed>) = 0 [pid 421] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 422 attached ) = 0 [pid 300] rmdir("./29" [pid 422] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 422 [pid 422] <... set_robust_list resumed>) = 0 [pid 421] setpgid(0, 0 [pid 422] chdir("./30" [pid 421] <... setpgid resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 422] <... chdir resumed>) = 0 [pid 421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] mkdir("./30", 0777 [pid 422] <... prctl resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 422] setpgid(0, 0 [pid 421] <... openat resumed>) = 3 [pid 422] <... setpgid resumed>) = 0 [pid 421] write(3, "1000", 4 [pid 300] <... mkdir resumed>) = 0 [pid 422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 421] <... write resumed>) = 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 422] <... openat resumed>) = 3 [pid 421] close(3) = 0 [pid 421] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 423 attached [pid 422] write(3, "1000", 4 [pid 421] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 423] set_robust_list(0x5555726b0660, 24 [pid 422] <... write resumed>) = 4 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 423 [pid 423] <... set_robust_list resumed>) = 0 [pid 422] close(3 [pid 298] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 423] chdir("./30"executing program [pid 422] <... close resumed>) = 0 [pid 421] write(1, "executing program\n", 18 [pid 298] <... openat resumed>) = 3 [pid 421] <... write resumed>) = 18 [pid 423] <... chdir resumed>) = 0 [pid 422] symlink("/dev/binderfs", "./binderfs"executing program [pid 421] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(3, "", [pid 423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 422] <... symlink resumed>) = 0 [pid 423] <... prctl resumed>) = 0 [pid 422] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 423] setpgid(0, 0 [pid 422] <... write resumed>) = 18 [pid 423] <... setpgid resumed>) = 0 [pid 298] getdents64(3, [pid 423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 422] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 421] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 423] <... openat resumed>) = 3 [pid 421] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 423] write(3, "1000", 4 [pid 422] <... mkdirat resumed>) = 0 [pid 421] <... mount resumed>) = 0 [pid 298] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 423] <... write resumed>) = 4 [pid 423] close(3) = 0 [pid 422] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 423] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 423] <... symlink resumed>) = 0 [pid 421] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 executing program [pid 423] write(1, "executing program\n", 18 [pid 422] <... mount resumed>) = 0 [pid 298] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 423] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 423] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 422] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 421] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./31/binderfs2", [pid 421] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 423] <... mkdirat resumed>) = 0 [pid 422] <... openat resumed>) = 3 [pid 421] +++ exited with 0 +++ [pid 298] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- 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] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./31/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 422] exit_group(0) = ? [pid 423] <... mount resumed>) = 0 [pid 422] +++ exited with 0 +++ [pid 298] newfstatat(4, "", [pid 297] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 423] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 423] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, [pid 297] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 423] exit_group(0 [pid 299] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 423] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 423] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... openat resumed>) = 3 [pid 298] rmdir("./31/binderfs2" [pid 297] getdents64(3, [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./31/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] <... umount2 resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(3, "", [pid 299] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./28/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./31" [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./30/binderfs2", [pid 297] umount2("./28/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./32", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./28/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./30/binderfs2", [pid 299] openat(AT_FDCWD, "./30/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(4, "", ./strace-static-x86_64: Process 424 attached [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 424] set_robust_list(0x5555726b0660, 24 [pid 300] openat(AT_FDCWD, "./30/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 424] <... set_robust_list resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 297] getdents64(4, [pid 424] chdir("./32" [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 424 [pid 424] <... chdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 424] <... prctl resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 424] setpgid(0, 0 [pid 300] getdents64(4, [pid 424] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] close(4 [pid 424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./30/binderfs2" [pid 424] <... openat resumed>) = 3 [pid 300] close(4 [pid 297] <... close resumed>) = 0 [pid 424] write(3, "1000", 4 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] rmdir("./28/binderfs2" [pid 299] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 424] <... write resumed>) = 4 [pid 424] close(3 [pid 300] rmdir("./30/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 424] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./30/binderfs", [pid 297] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 424] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 424] <... symlink resumed>) = 0 [pid 300] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./30/binderfs" [pid 297] newfstatat(AT_FDCWD, "./28/binderfs", executing program [pid 424] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 424] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./30/binderfs", [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 424] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./28/binderfs" [pid 300] unlink("./30/binderfs" [pid 299] close(3 [pid 424] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] rmdir("./30" [pid 297] getdents64(3, [pid 424] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 424] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] mkdir("./31", 0777 [pid 297] close(3 [pid 300] close(3 [pid 424] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 424] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] rmdir("./28" [pid 300] rmdir("./30" [pid 424] exit_group(0./strace-static-x86_64: Process 425 attached ) = ? [pid 425] set_robust_list(0x5555726b0660, 24 [pid 424] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 425] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./31", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 425 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 425] chdir("./31" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] mkdir("./29", 0777 [pid 425] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 425] <... prctl resumed>) = 0 [pid 425] setpgid(0, 0./strace-static-x86_64: Process 426 attached ) = 0 [pid 425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 427 attached [pid 426] set_robust_list(0x5555726b0660, 24 [pid 298] <... restart_syscall resumed>) = 0 [pid 427] set_robust_list(0x5555726b0660, 24 [pid 426] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 426 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 427 [pid 427] <... set_robust_list resumed>) = 0 [pid 426] chdir("./31" [pid 427] chdir("./29" [pid 426] <... chdir resumed>) = 0 [pid 427] <... chdir resumed>) = 0 [pid 426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 425] <... openat resumed>) = 3 [pid 298] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 426] <... prctl resumed>) = 0 [pid 425] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 427] <... prctl resumed>) = 0 [pid 426] setpgid(0, 0 [pid 425] <... write resumed>) = 4 [pid 298] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 427] setpgid(0, 0 [pid 426] <... setpgid resumed>) = 0 [pid 425] close(3 [pid 298] <... openat resumed>) = 3 [pid 427] <... setpgid resumed>) = 0 [pid 426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 425] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 426] <... openat resumed>) = 3 [pid 425] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 427] <... openat resumed>) = 3 [pid 426] write(3, "1000", 4 [pid 425] <... symlink resumed>) = 0 [pid 298] getdents64(3, [pid 427] write(3, "1000", 4 [pid 426] <... write resumed>) = 4 [pid 427] <... write resumed>) = 4 [pid 426] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 427] close(3executing program [pid 426] <... close resumed>) = 0 [pid 425] write(1, "executing program\n", 18 [pid 298] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 427] <... close resumed>) = 0 [pid 426] symlink("/dev/binderfs", "./binderfs" [pid 425] <... write resumed>) = 18 [pid 425] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 427] symlink("/dev/binderfs", "./binderfs") = 0 executing program executing program [pid 426] <... symlink resumed>) = 0 [pid 425] <... mkdirat resumed>) = 0 [pid 298] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 427] write(1, "executing program\n", 18 [pid 426] write(1, "executing program\n", 18 [pid 427] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 426] <... write resumed>) = 18 [pid 425] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 427] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 426] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./32/binderfs2", [pid 425] <... mount resumed>) = 0 [pid 425] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 426] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 425] <... openat resumed>) = 3 [pid 427] <... mkdirat resumed>) = 0 [pid 426] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 425] exit_group(0 [pid 298] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 427] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 425] <... exit_group resumed>) = ? [pid 427] <... mount resumed>) = 0 [pid 426] <... mount resumed>) = 0 [pid 425] +++ exited with 0 +++ [pid 298] openat(AT_FDCWD, "./32/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 427] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 426] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... openat resumed>) = 4 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 426] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 427] exit_group(0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 427] <... exit_group resumed>) = ? [pid 426] exit_group(0 [pid 298] getdents64(4, [pid 426] <... exit_group resumed>) = ? [pid 427] +++ exited with 0 +++ [pid 426] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] close(4) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] rmdir("./32/binderfs2" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./32/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./32") = 0 [pid 298] mkdir("./33", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 428 attached [pid 428] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 428 [pid 428] <... set_robust_list resumed>) = 0 [pid 428] chdir("./33") = 0 [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 299] <... restart_syscall resumed>) = 0 executing program [pid 428] write(1, "executing program\n", 18) = 18 [pid 428] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(3, "", [pid 428] <... mkdirat resumed>) = 0 [pid 428] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 428] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 428] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 428] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 428] exit_group(0 [pid 297] newfstatat(3, "", [pid 300] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 428] <... exit_group resumed>) = ? [pid 297] getdents64(3, [pid 428] +++ exited with 0 +++ [pid 300] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./31/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./31/binderfs2", [pid 300] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./31/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./31/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./29/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./29/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./29/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 300] close(4 [pid 297] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] getdents64(4, [pid 300] rmdir("./31/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(4 [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./31/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./29/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 300] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] unlink("./31/binderfs" [pid 299] newfstatat(AT_FDCWD, "./31/binderfs", [pid 297] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./31/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./29/binderfs", [pid 300] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] unlink("./29/binderfs") = 0 [pid 298] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 298] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 300] close(3 [pid 299] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 300] rmdir("./31" [pid 299] rmdir("./31" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./29" [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./30", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] mkdir("./32", 0777) = 0 [pid 300] mkdir("./32", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 429 ./strace-static-x86_64: Process 429 attached [pid 429] set_robust_list(0x5555726b0660, 24) = 0 [pid 429] chdir("./30" [pid 300] <... mkdir resumed>) = 0 [pid 429] <... chdir resumed>) = 0 [pid 298] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [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 298] newfstatat(AT_FDCWD, "./33/binderfs2", ./strace-static-x86_64: Process 430 attached [pid 429] write(3, "1000", 4 [pid 430] set_robust_list(0x5555726b0660, 24 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 430 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 430] <... set_robust_list resumed>) = 0 [pid 429] <... write resumed>) = 4 [pid 430] chdir("./32" [pid 429] close(3 [pid 430] <... chdir resumed>) = 0 [pid 429] <... close resumed>) = 0 ./strace-static-x86_64: Process 431 attached [pid 430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 429] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 431] set_robust_list(0x5555726b0660, 24 [pid 430] <... prctl resumed>) = 0 [pid 429] <... symlink resumed>) = 0 [pid 431] <... set_robust_list resumed>) = 0 [pid 430] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 431 [pid 298] openat(AT_FDCWD, "./33/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 430] <... setpgid resumed>) = 0 [pid 431] chdir("./32" [pid 430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 4 [pid 431] <... chdir resumed>) = 0 [pid 430] <... openat resumed>) = 3 executing program [pid 429] write(1, "executing program\n", 18 [pid 298] newfstatat(4, "", [pid 429] <... write resumed>) = 18 [pid 431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 430] write(3, "1000", 4 [pid 429] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 431] <... prctl resumed>) = 0 [pid 430] <... write resumed>) = 4 [pid 429] <... mkdirat resumed>) = 0 [pid 431] setpgid(0, 0 [pid 298] getdents64(4, [pid 431] <... setpgid resumed>) = 0 [pid 430] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 430] <... close resumed>) = 0 [pid 431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 430] symlink("/dev/binderfs", "./binderfs" [pid 429] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(4, [pid 431] <... openat resumed>) = 3 [pid 430] <... symlink resumed>) = 0 executing program [pid 429] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 430] write(1, "executing program\n", 18 [pid 298] close(4 [pid 430] <... write resumed>) = 18 [pid 431] write(3, "1000", 4 [pid 298] <... close resumed>) = 0 [pid 431] <... write resumed>) = 4 [pid 298] rmdir("./33/binderfs2" [pid 431] close(3 [pid 430] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 431] <... close resumed>) = 0 [pid 430] <... mkdirat resumed>) = 0 [pid 429] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... rmdir resumed>) = 0 [pid 429] <... openat resumed>) = 3 [pid 431] symlink("/dev/binderfs", "./binderfs" [pid 430] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 431] <... symlink resumed>) = 0 [pid 430] <... mount resumed>) = 0 [pid 429] exit_group(0 [pid 298] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 429] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 431] write(1, "executing program\n", 18 [pid 298] newfstatat(AT_FDCWD, "./33/binderfs", executing program [pid 431] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 431] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] unlink("./33/binderfs") = 0 [pid 430] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 431] <... mkdirat resumed>) = 0 [pid 430] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 431] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 430] exit_group(0) = ? [pid 429] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 431] <... mount resumed>) = 0 [pid 430] +++ exited with 0 +++ [pid 298] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... close resumed>) = 0 [pid 431] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] rmdir("./33" [pid 297] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 431] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 431] exit_group(0 [pid 298] mkdir("./34", 0777 [pid 297] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 431] <... exit_group resumed>) = ? [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 431] +++ exited with 0 +++ [pid 299] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(AT_FDCWD, "./30/binderfs2", ./strace-static-x86_64: Process 432 attached [pid 299] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 432] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 432 [pid 297] umount2("./30/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 432] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 432] chdir("./34" [pid 300] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./30/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 432] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./30/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 432] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 432] setpgid(0, 0 [pid 300] getdents64(3, [pid 299] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 432] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./32/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./30/binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 432] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./30" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 432] write(3, "1000", 4 [pid 300] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./32/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 432] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 432] close(3 [pid 300] newfstatat(AT_FDCWD, "./32/binderfs2", [pid 299] <... openat resumed>) = 4 [pid 432] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", [pid 432] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 432] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 432] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./32/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./31", 0777executing program [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 432] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 432] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 433 attached [pid 432] <... mkdirat resumed>) = 0 [pid 299] rmdir("./32/binderfs2" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 433 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 433] set_robust_list(0x5555726b0660, 24 [pid 300] close(4) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 433] <... set_robust_list resumed>) = 0 [pid 432] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] rmdir("./32/binderfs2" [pid 433] chdir("./31" [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 432] <... mount resumed>) = 0 [pid 300] unlink("./32/binderfs") = 0 [pid 299] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 433] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./32/binderfs", [pid 433] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 433] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 433] <... setpgid resumed>) = 0 [pid 300] close(3 [pid 299] unlink("./32/binderfs" [pid 300] <... close resumed>) = 0 [pid 433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./32" [pid 433] <... openat resumed>) = 3 [pid 432] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 433] write(3, "1000", 4 [pid 432] <... openat resumed>) = 3 [pid 300] mkdir("./33", 0777 [pid 433] <... write resumed>) = 4 [pid 432] exit_group(0 [pid 433] close(3 [pid 299] getdents64(3, [pid 432] <... exit_group resumed>) = ? [pid 433] <... close resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 432] +++ exited with 0 +++ [pid 433] symlink("/dev/binderfs", "./binderfs" [pid 299] close(3./strace-static-x86_64: Process 434 attached ) = 0 [pid 298] --- 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] set_robust_list(0x5555726b0660, 24 [pid 433] <... symlink resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 434 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 434] <... set_robust_list resumed>) = 0 executing program [pid 434] chdir("./33" [pid 299] rmdir("./32" [pid 433] write(1, "executing program\n", 18 [pid 434] <... chdir resumed>) = 0 [pid 434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 434] setpgid(0, 0 [pid 433] <... write resumed>) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 434] <... setpgid resumed>) = 0 [pid 434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 433] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 299] mkdir("./33", 0777 [pid 434] <... openat resumed>) = 3 [pid 434] write(3, "1000", 4) = 4 [pid 434] close(3 [pid 433] <... mkdirat resumed>) = 0 [pid 434] <... close resumed>) = 0 [pid 434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... mkdir resumed>) = 0 [pid 434] write(1, "executing program\n", 18) = 18 [pid 434] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 433] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 434] <... mkdirat resumed>) = 0 [pid 434] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 433] <... mount resumed>) = 0 ./strace-static-x86_64: Process 435 attached [pid 434] <... mount resumed>) = 0 [pid 435] set_robust_list(0x5555726b0660, 24 [pid 434] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 435 [pid 433] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 435] <... set_robust_list resumed>) = 0 [pid 434] <... openat resumed>) = 3 [pid 433] <... openat resumed>) = 3 [pid 435] chdir("./33" [pid 434] exit_group(0 [pid 435] <... chdir resumed>) = 0 [pid 435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 434] <... exit_group resumed>) = ? [pid 435] <... prctl resumed>) = 0 [pid 434] +++ exited with 0 +++ [pid 433] exit_group(0) = ? [pid 435] setpgid(0, 0) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 435] <... openat resumed>) = 3 [pid 435] write(3, "1000", 4 [pid 433] +++ exited with 0 +++ [pid 435] <... write resumed>) = 4 [pid 435] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 435] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 435] symlink("/dev/binderfs", "./binderfs") = 0 [pid 435] write(1, "executing program\n", 18executing program ) = 18 [pid 435] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 435] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 435] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 435] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(3, [pid 435] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 435] exit_group(0 [pid 300] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 435] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 435] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 298] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./34/binderfs2", [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./34/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 300] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./33/binderfs2", [pid 298] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./33/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 300] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] rmdir("./34/binderfs2" [pid 300] getdents64(4, [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 297] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./33/binderfs2" [pid 297] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./34/binderfs", [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./33/binderfs", [pid 299] newfstatat(AT_FDCWD, "./33/binderfs2", [pid 298] unlink("./34/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./33/binderfs" [pid 299] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./33/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 300] close(3 [pid 298] rmdir("./34" [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... rmdir resumed>) = 0 [pid 300] rmdir("./33" [pid 297] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(AT_FDCWD, "./31/binderfs2", [pid 299] getdents64(4, [pid 298] mkdir("./35", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] mkdir("./34", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./31/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] close(4) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./33/binderfs2" [pid 297] openat(AT_FDCWD, "./31/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 436 attached ./strace-static-x86_64: Process 437 attached [pid 299] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 436] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 436] <... set_robust_list resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./33/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 436] chdir("./34" [pid 297] getdents64(4, [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 436 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 437 [pid 297] close(4) = 0 [pid 297] rmdir("./31/binderfs2" [pid 437] set_robust_list(0x5555726b0660, 24 [pid 436] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 437] <... set_robust_list resumed>) = 0 [pid 436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] unlink("./33/binderfs" [pid 297] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./31/binderfs", [pid 436] <... prctl resumed>) = 0 [pid 437] chdir("./35" [pid 299] getdents64(3, [pid 436] setpgid(0, 0 [pid 437] <... chdir resumed>) = 0 [pid 436] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 437] <... prctl resumed>) = 0 [pid 436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(3 [pid 297] unlink("./31/binderfs" [pid 437] setpgid(0, 0 [pid 436] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 437] <... setpgid resumed>) = 0 [pid 299] rmdir("./33" [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./31" [pid 299] <... rmdir resumed>) = 0 [pid 437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 436] write(3, "1000", 4 [pid 437] <... openat resumed>) = 3 [pid 299] mkdir("./34", 0777 [pid 436] <... write resumed>) = 4 [pid 436] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 436] <... close resumed>) = 0 [pid 297] mkdir("./32", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 436] symlink("/dev/binderfs", "./binderfs" [pid 437] write(3, "1000", 4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 436] <... symlink resumed>) = 0 [pid 437] <... write resumed>) = 4 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 437] close(3) = 0 [pid 436] write(1, "executing program\n", 18 [pid 437] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 438 attached [pid 438] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 438 executing program executing program [pid 438] <... set_robust_list resumed>) = 0 [pid 438] chdir("./32"./strace-static-x86_64: Process 439 attached [pid 436] <... write resumed>) = 18 [pid 437] write(1, "executing program\n", 18 [pid 438] <... chdir resumed>) = 0 [pid 438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 437] <... write resumed>) = 18 [pid 436] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 438] setpgid(0, 0 [pid 437] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 438] <... setpgid resumed>) = 0 [pid 438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 438] write(3, "1000", 4 [pid 437] <... mkdirat resumed>) = 0 [pid 438] <... write resumed>) = 4 [pid 438] close(3) = 0 [pid 438] symlink("/dev/binderfs", "./binderfs" [pid 436] <... mkdirat resumed>) = 0 [pid 438] <... symlink resumed>) = 0 [pid 439] set_robust_list(0x5555726b0660, 24 executing program [pid 437] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 439] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 439 [pid 436] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 438] write(1, "executing program\n", 18 [pid 439] chdir("./34" [pid 438] <... write resumed>) = 18 [pid 439] <... chdir resumed>) = 0 [pid 438] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 438] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 436] <... mount resumed>) = 0 [pid 438] <... mount resumed>) = 0 [pid 438] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 438] exit_group(0) = ? [pid 437] <... mount resumed>) = 0 [pid 438] +++ exited with 0 +++ [pid 439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 436] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 439] <... prctl resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=438, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 436] <... openat resumed>) = 3 [pid 439] setpgid(0, 0) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 439] write(3, "1000", 4 [pid 436] exit_group(0 [pid 439] <... write resumed>) = 4 [pid 439] close(3 [pid 436] <... exit_group resumed>) = ? [pid 439] <... close resumed>) = 0 [pid 437] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 437] exit_group(0) = ? [pid 436] +++ exited with 0 +++ [pid 439] symlink("/dev/binderfs", "./binderfs" [pid 437] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 439] <... symlink resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 439] write(1, "executing program\n", 18) = 18 [pid 439] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 439] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 439] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 439] exit_group(0) = ? [pid 297] <... restart_syscall resumed>) = 0 [pid 439] +++ exited with 0 +++ [pid 297] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./32/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./32/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./32/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] getdents64(4, [pid 299] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] close(4 [pid 299] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./32/binderfs2") = 0 [pid 297] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./32/binderfs" [pid 299] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./34/binderfs2", [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] close(3 [pid 300] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./34/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(3, "", [pid 299] <... openat resumed>) = 4 [pid 298] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./32" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 300] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 297] mkdir("./33", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./34/binderfs2" [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(AT_FDCWD, "./34/binderfs2", [pid 299] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./34/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./34/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 440 attached [pid 300] <... openat resumed>) = 4 [pid 299] unlink("./34/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./35/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... unlink resumed>) = 0 [pid 440] set_robust_list(0x5555726b0660, 24 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 298] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 440 [pid 440] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 440] chdir("./33" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 440] <... chdir resumed>) = 0 [pid 299] close(3 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./35/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./34" [pid 298] <... openat resumed>) = 4 [pid 300] close(4 [pid 298] newfstatat(4, "", [pid 440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 440] <... prctl resumed>) = 0 [pid 300] rmdir("./34/binderfs2" [pid 298] getdents64(4, [pid 440] setpgid(0, 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 440] <... setpgid resumed>) = 0 [pid 299] mkdir("./35", 0777 [pid 298] getdents64(4, [pid 440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 300] newfstatat(AT_FDCWD, "./34/binderfs", [pid 298] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] unlink("./34/binderfs" [pid 298] rmdir("./35/binderfs2" [pid 440] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 440] write(3, "1000", 4) = 4 [pid 300] getdents64(3, [pid 440] close(3) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./34" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 441 attached [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./35/binderfs", [pid 441] set_robust_list(0x5555726b0660, 24 [pid 440] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 441] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./35", 0777 [pid 298] unlink("./35/binderfs" [pid 441] chdir("./35" executing program [pid 440] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 441 [pid 298] <... unlink resumed>) = 0 [pid 440] write(1, "executing program\n", 18) = 18 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 441] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 440] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(3 [pid 441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 440] <... mkdirat resumed>) = 0 [pid 298] <... close resumed>) = 0 ./strace-static-x86_64: Process 442 attached [pid 441] setpgid(0, 0 [pid 298] rmdir("./35" [pid 441] <... setpgid resumed>) = 0 [pid 442] set_robust_list(0x5555726b0660, 24) = 0 [pid 441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 440] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 442 [pid 441] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./36", 0777 [pid 440] <... mount resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 442] chdir("./35" [pid 441] write(3, "1000", 4 [pid 440] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 442] <... chdir resumed>) = 0 [pid 441] <... write resumed>) = 4 [pid 442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 441] close(3 [pid 440] <... openat resumed>) = 3 ./strace-static-x86_64: Process 443 attached [pid 442] <... prctl resumed>) = 0 [pid 441] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 443 [pid 440] exit_group(0 executing program [pid 441] symlink("/dev/binderfs", "./binderfs" [pid 442] setpgid(0, 0 [pid 443] set_robust_list(0x5555726b0660, 24) = 0 [pid 441] <... symlink resumed>) = 0 [pid 442] <... setpgid resumed>) = 0 [pid 441] write(1, "executing program\n", 18 [pid 440] <... exit_group resumed>) = ? [pid 443] chdir("./36" [pid 442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 441] <... write resumed>) = 18 [pid 443] <... chdir resumed>) = 0 [pid 441] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 443] setpgid(0, 0) = 0 [pid 441] <... mkdirat resumed>) = 0 [pid 443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 442] <... openat resumed>) = 3 [pid 443] <... openat resumed>) = 3 [pid 443] write(3, "1000", 4) = 4 [pid 443] close(3executing program ) = 0 [pid 443] symlink("/dev/binderfs", "./binderfs") = 0 [pid 443] write(1, "executing program\n", 18 [pid 440] +++ exited with 0 +++ [pid 442] write(3, "1000", 4 [pid 443] <... write resumed>) = 18 [pid 442] <... write resumed>) = 4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 443] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 442] close(3 [pid 441] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 442] <... close resumed>) = 0 [pid 443] <... mkdirat resumed>) = 0 [pid 442] symlink("/dev/binderfs", "./binderfs" [pid 441] <... mount resumed>) = 0 [pid 443] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 442] <... symlink resumed>) = 0 executing program [pid 442] write(1, "executing program\n", 18 [pid 441] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 442] <... write resumed>) = 18 [pid 442] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 443] <... mount resumed>) = 0 [pid 441] <... openat resumed>) = 3 [pid 442] <... mkdirat resumed>) = 0 [pid 442] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 443] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 441] exit_group(0 [pid 443] <... openat resumed>) = 3 [pid 443] exit_group(0 [pid 442] <... mount resumed>) = 0 [pid 441] <... exit_group resumed>) = ? [pid 443] <... exit_group resumed>) = ? [pid 442] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 442] exit_group(0) = ? [pid 442] +++ exited with 0 +++ [pid 443] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 441] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] newfstatat(3, "", [pid 298] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./36/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./35/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./35/binderfs2", [pid 298] openat(AT_FDCWD, "./36/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./35/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 297] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 300] openat(AT_FDCWD, "./35/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./33/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 300] <... openat resumed>) = 4 [pid 297] umount2("./33/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] rmdir("./35/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] openat(AT_FDCWD, "./33/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./35/binderfs", [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./36/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(4 [pid 299] unlink("./35/binderfs" [pid 297] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./35/binderfs2" [pid 297] getdents64(4, [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] close(3) = 0 [pid 297] <... close resumed>) = 0 [pid 299] rmdir("./35" [pid 297] rmdir("./33/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] mkdir("./36", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./35/binderfs", [pid 298] newfstatat(AT_FDCWD, "./36/binderfs", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./33/binderfs", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] unlink("./35/binderfs" [pid 298] unlink("./36/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 444 attached [pid 444] set_robust_list(0x5555726b0660, 24 [pid 298] <... unlink resumed>) = 0 [pid 297] unlink("./33/binderfs" [pid 300] <... unlink resumed>) = 0 [pid 444] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 444 [pid 444] chdir("./36" [pid 297] <... unlink resumed>) = 0 [pid 444] <... chdir resumed>) = 0 [pid 444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 444] setpgid(0, 0) = 0 [pid 300] getdents64(3, [pid 298] getdents64(3, [pid 297] getdents64(3, [pid 444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 444] <... openat resumed>) = 3 [pid 300] close(3 [pid 298] close(3 [pid 297] close(3 [pid 444] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 444] <... write resumed>) = 4 [pid 300] rmdir("./35" [pid 298] rmdir("./36" [pid 297] rmdir("./33" [pid 444] close(3) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 444] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 executing program [pid 297] mkdir("./34", 0777 [pid 444] write(1, "executing program\n", 18) = 18 [pid 444] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] mkdir("./37", 0777 [pid 444] <... mkdirat resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 444] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 300] mkdir("./36", 0777 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 444] <... mount resumed>) = 0 [pid 444] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... mkdir resumed>) = 0 [pid 444] <... openat resumed>) = 3 [pid 444] exit_group(0) = ? ./strace-static-x86_64: Process 446 attached ./strace-static-x86_64: Process 445 attached [pid 444] +++ exited with 0 +++ [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 445 [pid 445] set_robust_list(0x5555726b0660, 24 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 445] <... set_robust_list resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 445] chdir("./34") = 0 ./strace-static-x86_64: Process 447 attached [pid 447] set_robust_list(0x5555726b0660, 24) = 0 [pid 445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 447] chdir("./36" [pid 445] <... prctl resumed>) = 0 [pid 446] set_robust_list(0x5555726b0660, 24 [pid 445] setpgid(0, 0 [pid 446] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 447 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 446 [pid 447] <... chdir resumed>) = 0 [pid 445] <... setpgid resumed>) = 0 [pid 447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 446] chdir("./37" [pid 445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 447] <... prctl resumed>) = 0 [pid 447] setpgid(0, 0 [pid 446] <... chdir resumed>) = 0 [pid 445] <... openat resumed>) = 3 [pid 446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 447] <... setpgid resumed>) = 0 [pid 446] <... prctl resumed>) = 0 [pid 445] write(3, "1000", 4 [pid 447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 446] setpgid(0, 0 [pid 445] <... write resumed>) = 4 [pid 447] <... openat resumed>) = 3 [pid 445] close(3 [pid 446] <... setpgid resumed>) = 0 [pid 445] <... close resumed>) = 0 [pid 447] write(3, "1000", 4 [pid 445] symlink("/dev/binderfs", "./binderfs" [pid 446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 447] <... write resumed>) = 4 [pid 445] <... symlink resumed>) = 0 [pid 447] close(3) = 0 [pid 447] symlink("/dev/binderfs", "./binderfs" [pid 446] <... openat resumed>) = 3 executing program executing program [pid 447] <... symlink resumed>) = 0 [pid 446] write(3, "1000", 4 [pid 445] write(1, "executing program\n", 18 [pid 447] write(1, "executing program\n", 18) = 18 [pid 447] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 446] <... write resumed>) = 4 [pid 445] <... write resumed>) = 18 [pid 446] close(3 [pid 445] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 446] <... close resumed>) = 0 [pid 446] symlink("/dev/binderfs", "./binderfs" [pid 447] <... mkdirat resumed>) = 0 [pid 445] <... mkdirat resumed>) = 0 [pid 446] <... symlink resumed>) = 0 [pid 447] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 446] write(1, "executing program\n", 18 [pid 445] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 447] <... mount resumed>) = 0 [pid 446] <... write resumed>) = 18 [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 445] <... mount resumed>) = 0 [pid 446] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 447] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 447] <... openat resumed>) = 3 [pid 446] <... mkdirat resumed>) = 0 [pid 445] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 447] exit_group(0 [pid 299] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 447] <... exit_group resumed>) = ? [pid 446] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 445] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 447] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./36/binderfs2", [pid 446] <... mount resumed>) = 0 [pid 445] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 445] <... exit_group resumed>) = ? [pid 445] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./36/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 446] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 4 [pid 446] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 446] exit_group(0) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 446] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4) = 0 [pid 299] rmdir("./36/binderfs2" [pid 297] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./36/binderfs", [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./36/binderfs") = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 299] close(3) = 0 [pid 299] rmdir("./36" [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] mkdir("./37", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(AT_FDCWD, "./36/binderfs2", [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./34/binderfs2", ./strace-static-x86_64: Process 448 attached [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./36/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./37/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 448] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./34/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 448 [pid 448] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 448] chdir("./37" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./34/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] openat(AT_FDCWD, "./37/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 448] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 448] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 448] setpgid(0, 0 [pid 300] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 448] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./36/binderfs2" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./34/binderfs2" [pid 448] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 448] write(3, "1000", 4 [pid 297] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 448] <... write resumed>) = 4 [pid 300] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] unlink("./34/binderfs" [pid 448] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 297] <... unlink resumed>) = 0 [pid 448] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./36/binderfs", [pid 448] symlink("/dev/binderfs", "./binderfs" [pid 298] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 448] <... symlink resumed>) = 0 [pid 300] unlink("./36/binderfs" [pid 298] rmdir("./37/binderfs2" [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./34" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 executing program [pid 300] getdents64(3, [pid 448] write(1, "executing program\n", 18 [pid 297] mkdir("./35", 0777 [pid 448] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 448] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] close(3 [pid 298] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 ./strace-static-x86_64: Process 449 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 449 [pid 449] set_robust_list(0x5555726b0660, 24 [pid 448] <... mkdirat resumed>) = 0 [pid 300] rmdir("./36" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 449] <... set_robust_list resumed>) = 0 [pid 449] chdir("./35") = 0 [pid 449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... rmdir resumed>) = 0 executing program [pid 448] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./37/binderfs", [pid 300] mkdir("./37", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 449] setpgid(0, 0 [pid 298] unlink("./37/binderfs" [pid 449] <... setpgid resumed>) = 0 [pid 449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... unlink resumed>) = 0 [pid 449] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 449] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 449] <... write resumed>) = 4 [pid 298] close(3 [pid 449] close(3 [pid 298] <... close resumed>) = 0 [pid 449] <... close resumed>) = 0 [pid 298] rmdir("./37" [pid 449] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... rmdir resumed>) = 0 [pid 449] write(1, "executing program\n", 18) = 18 [pid 449] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 448] <... mount resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] mkdir("./38", 0777 [pid 449] <... mkdirat resumed>) = 0 [pid 449] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 450 attached ) = 0 [pid 449] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... mkdir resumed>) = 0 [pid 449] <... openat resumed>) = 3 [pid 449] exit_group(0 [pid 448] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 450] set_robust_list(0x5555726b0660, 24 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 449] <... exit_group resumed>) = ? [pid 448] <... openat resumed>) = 3 [pid 450] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 451 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 450 [pid 450] chdir("./37" [pid 451] set_robust_list(0x5555726b0660, 24 [pid 450] <... chdir resumed>) = 0 [pid 449] +++ exited with 0 +++ [pid 448] exit_group(0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 451 [pid 450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 451] <... set_robust_list resumed>) = 0 [pid 450] setpgid(0, 0 [pid 448] <... exit_group resumed>) = ? [pid 451] chdir("./38") = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 448] +++ exited with 0 +++ [pid 297] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 451] <... prctl resumed>) = 0 [pid 451] setpgid(0, 0 [pid 297] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 451] <... setpgid resumed>) = 0 [pid 297] newfstatat(3, "", [pid 451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 451] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(3, [pid 450] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 451] write(3, "1000", 4 [pid 450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 451] <... write resumed>) = 4 [pid 450] <... openat resumed>) = 3 [pid 297] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 451] close(3 [pid 450] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = 0 [pid 451] <... close resumed>) = 0 [pid 450] <... write resumed>) = 4 [pid 450] close(3 [pid 451] symlink("/dev/binderfs", "./binderfs" [pid 450] <... close resumed>) = 0 [pid 451] <... symlink resumed>) = 0 [pid 450] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 450] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 450] write(1, "executing program\n", 18 [pid 297] newfstatat(AT_FDCWD, "./35/binderfs2", executing program [pid 451] write(1, "executing program\n", 18 [pid 450] <... write resumed>) = 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 451] <... write resumed>) = 18 [pid 450] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 451] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./35/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 451] <... mkdirat resumed>) = 0 [pid 450] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 450] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./35/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 451] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 450] <... mount resumed>) = 0 [pid 451] <... mount resumed>) = 0 [pid 450] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 450] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./35/binderfs2" [pid 450] exit_group(0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 450] <... exit_group resumed>) = ? [pid 451] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 450] +++ exited with 0 +++ [pid 297] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 451] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 451] <... exit_group resumed>) = ? [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./35/binderfs", [pid 451] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] unlink("./35/binderfs" [pid 299] newfstatat(3, "", [pid 297] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./37/binderfs2", [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(3 [pid 298] newfstatat(AT_FDCWD, "./38/binderfs2", [pid 299] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./35" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./37/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./38/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] mkdir("./36", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... mkdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./38/binderfs2") = 0 [pid 298] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./38/binderfs" [pid 300] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./38" [pid 299] close(4 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 452 [pid 300] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./37/binderfs2" [pid 300] <... openat resumed>) = 3 ./strace-static-x86_64: Process 452 attached [pid 298] mkdir("./39", 0777 [pid 452] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 452] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 452] chdir("./36" [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 452] <... chdir resumed>) = 0 [pid 300] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 453 attached [pid 453] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 453] chdir("./39" [pid 452] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 453 [pid 452] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./37/binderfs", [pid 452] <... setpgid resumed>) = 0 [pid 453] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./37/binderfs2", [pid 453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 453] <... prctl resumed>) = 0 [pid 452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./37/binderfs" [pid 453] setpgid(0, 0 [pid 452] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 453] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./37/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 452] write(3, "1000", 4) = 4 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 453] <... openat resumed>) = 3 [pid 452] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 452] <... close resumed>) = 0 [pid 452] symlink("/dev/binderfs", "./binderfs" [pid 299] close(3 [pid 453] write(3, "1000", 4 [pid 300] newfstatat(4, "", [pid 299] <... close resumed>) = 0 [pid 452] <... symlink resumed>) = 0 [pid 299] rmdir("./37"executing program [pid 453] <... write resumed>) = 4 [pid 452] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 453] close(3 [pid 452] <... write resumed>) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 453] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 453] symlink("/dev/binderfs", "./binderfs" [pid 452] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] mkdir("./38", 0777executing program [pid 453] <... symlink resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 453] write(1, "executing program\n", 18 [pid 300] close(4 [pid 453] <... write resumed>) = 18 [pid 452] <... mkdirat resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 452] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 453] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... close resumed>) = 0 [pid 452] <... mount resumed>) = 0 [pid 300] rmdir("./37/binderfs2") = 0 ./strace-static-x86_64: Process 454 attached [pid 452] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 454] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 454 [pid 453] <... mkdirat resumed>) = 0 [pid 452] <... openat resumed>) = 3 [pid 300] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 454] <... set_robust_list resumed>) = 0 [pid 454] chdir("./38" [pid 453] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 452] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 454] <... chdir resumed>) = 0 [pid 453] <... mount resumed>) = 0 [pid 452] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./37/binderfs", [pid 454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 453] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 454] setpgid(0, 0 [pid 452] +++ exited with 0 +++ [pid 300] unlink("./37/binderfs" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 454] <... setpgid resumed>) = 0 [pid 453] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 297] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./37" [pid 454] <... openat resumed>) = 3 [pid 453] exit_group(0 [pid 297] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 454] write(3, "1000", 4 [pid 453] <... exit_group resumed>) = ? [pid 454] <... write resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 300] mkdir("./38", 0777 [pid 297] newfstatat(3, "", [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 453] +++ exited with 0 +++ [pid 454] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 454] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 454] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 455 attached ) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 455] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 455 executing program [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 455] <... set_robust_list resumed>) = 0 [pid 454] write(1, "executing program\n", 18 [pid 297] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 455] chdir("./38" [pid 454] <... write resumed>) = 18 [pid 455] <... chdir resumed>) = 0 [pid 455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 455] setpgid(0, 0) = 0 [pid 455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 455] write(3, "1000", 4) = 4 [pid 455] close(3 [pid 297] <... umount2 resumed>) = 0 executing program [pid 455] <... close resumed>) = 0 [pid 454] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 455] symlink("/dev/binderfs", "./binderfs") = 0 [pid 455] write(1, "executing program\n", 18) = 18 [pid 454] <... mkdirat resumed>) = 0 [pid 455] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 454] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 455] <... mkdirat resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./36/binderfs2", [pid 455] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 454] <... mount resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 455] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./36/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 455] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 454] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] openat(AT_FDCWD, "./36/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 455] exit_group(0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 455] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 454] <... openat resumed>) = 3 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 454] exit_group(0 [pid 297] getdents64(4, [pid 454] <... exit_group resumed>) = ? [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 455] +++ exited with 0 +++ [pid 297] close(4) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] rmdir("./36/binderfs2" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 454] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./36/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./36") = 0 [pid 297] mkdir("./37", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 298] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 456 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 456 [pid 456] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 456] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 456] chdir("./37" [pid 300] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 300] newfstatat(3, "", [pid 456] <... chdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [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 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 456] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 456] write(3, "1000", 4) = 4 [pid 456] close(3) = 0 [pid 456] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 300] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 456] <... symlink resumed>) = 0 executing program [pid 456] write(1, "executing program\n", 18) = 18 [pid 456] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./39/binderfs2", [pid 300] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 456] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./38/binderfs2", [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./39/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 456] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 300] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 300] openat(AT_FDCWD, "./38/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 300] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 456] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] getdents64(4, [pid 456] exit_group(0 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 456] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(4 [pid 300] getdents64(4, [pid 456] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 300] close(4 [pid 298] rmdir("./39/binderfs2" [pid 300] <... close resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] rmdir("./38/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./38/binderfs", [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./39/binderfs", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./38/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./39/binderfs" [pid 300] <... unlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./38/binderfs2", [pid 300] getdents64(3, [pid 298] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3 [pid 297] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./38" [pid 299] openat(AT_FDCWD, "./38/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./39" [pid 297] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 300] mkdir("./39", 0777 [pid 299] newfstatat(4, "", [pid 298] mkdir("./40", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... close resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] rmdir("./38/binderfs2" [pid 297] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 457 attached [pid 299] <... rmdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 457] set_robust_list(0x5555726b0660, 24) = 0 [pid 457] chdir("./39" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 457 [pid 299] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./37/binderfs2", ./strace-static-x86_64: Process 458 attached [pid 457] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./38/binderfs", [pid 297] umount2("./37/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 457] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 458] set_robust_list(0x5555726b0660, 24 [pid 457] setpgid(0, 0 [pid 299] unlink("./38/binderfs" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 458 [pid 297] openat(AT_FDCWD, "./37/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 458] <... set_robust_list resumed>) = 0 [pid 458] chdir("./40" [pid 457] <... setpgid resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 458] <... chdir resumed>) = 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] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 458] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 458] write(3, "1000", 4 [pid 457] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 458] <... write resumed>) = 4 [pid 297] getdents64(4, [pid 299] close(3 [pid 458] close(3 [pid 299] <... close resumed>) = 0 [pid 457] write(3, "1000", 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 458] <... close resumed>) = 0 [pid 458] symlink("/dev/binderfs", "./binderfs") = 0 [pid 457] <... write resumed>) = 4 [pid 299] rmdir("./38" [pid 297] getdents64(4, [pid 458] write(1, "executing program\n", 18 [pid 457] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 457] <... close resumed>) = 0 [pid 458] <... write resumed>) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 297] close(4 [pid 458] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 457] symlink("/dev/binderfs", "./binderfs" [pid 299] mkdir("./39", 0777 [pid 297] <... close resumed>) = 0 [pid 458] <... mkdirat resumed>) = 0 [pid 457] <... symlink resumed>) = 0 [pid 297] rmdir("./37/binderfs2" [pid 458] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... mkdir resumed>) = 0 executing program [pid 457] write(1, "executing program\n", 18 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 459 attached [pid 458] <... mount resumed>) = 0 [pid 457] <... write resumed>) = 18 [pid 297] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 459] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 459 [pid 459] <... set_robust_list resumed>) = 0 [pid 457] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 458] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 459] chdir("./39" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 458] <... openat resumed>) = 3 [pid 457] <... mkdirat resumed>) = 0 [pid 458] exit_group(0) = ? [pid 459] <... chdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./37/binderfs", [pid 459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 459] <... prctl resumed>) = 0 [pid 457] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] unlink("./37/binderfs" [pid 459] setpgid(0, 0) = 0 [pid 297] <... unlink resumed>) = 0 [pid 459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 458] +++ exited with 0 +++ [pid 297] getdents64(3, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 459] <... openat resumed>) = 3 [pid 457] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 457] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] close(3 [pid 459] write(3, "1000", 4 [pid 457] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 459] <... write resumed>) = 4 [pid 459] close(3 [pid 297] rmdir("./37" [pid 459] <... close resumed>) = 0 [pid 457] exit_group(0 [pid 459] symlink("/dev/binderfs", "./binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 459] <... symlink resumed>) = 0 [pid 457] <... exit_group resumed>) = ? executing program [pid 459] write(1, "executing program\n", 18 [pid 297] mkdir("./38", 0777 [pid 459] <... write resumed>) = 18 [pid 459] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 459] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 457] +++ exited with 0 +++ [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 459] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 460 attached [pid 460] set_robust_list(0x5555726b0660, 24 [pid 459] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 460 [pid 298] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./40/binderfs2", [pid 460] <... set_robust_list resumed>) = 0 [pid 459] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 460] chdir("./38" [pid 298] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./40/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 459] exit_group(0 [pid 298] rmdir("./40/binderfs2" [pid 460] <... chdir resumed>) = 0 [pid 459] <... exit_group resumed>) = ? [pid 460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 460] setpgid(0, 0 [pid 298] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 460] <... setpgid resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] unlink("./40/binderfs" [pid 460] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 459] +++ exited with 0 +++ [pid 298] rmdir("./40" [pid 460] write(3, "1000", 4 [pid 298] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] mkdir("./41", 0777 [pid 460] <... write resumed>) = 4 [pid 460] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 460] <... close resumed>) = 0 [pid 460] symlink("/dev/binderfs", "./binderfs" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 460] <... symlink resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 461 attached executing program [pid 460] write(1, "executing program\n", 18 [pid 461] set_robust_list(0x5555726b0660, 24) = 0 [pid 460] <... write resumed>) = 18 [pid 299] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 461] chdir("./41" [pid 460] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 461] <... chdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 461 [pid 461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 461] setpgid(0, 0 [pid 299] <... openat resumed>) = 3 [pid 461] <... setpgid resumed>) = 0 [pid 461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 460] <... mkdirat resumed>) = 0 [pid 299] newfstatat(3, "", [pid 461] <... openat resumed>) = 3 [pid 461] write(3, "1000", 4) = 4 [pid 461] close(3) = 0 [pid 461] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 460] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 299] getdents64(3, [pid 461] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 461] write(1, "executing program\n", 18 [pid 299] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 461] <... write resumed>) = 18 [pid 461] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 461] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 461] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 461] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 461] exit_group(0) = ? [pid 460] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./39/binderfs2", [pid 460] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 460] <... openat resumed>) = 3 [pid 299] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 461] +++ exited with 0 +++ [pid 460] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./39/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 460] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 300] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 460] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(3, "", [pid 299] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, [pid 299] close(4 [pid 297] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... close resumed>) = 0 [pid 300] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./39/binderfs2" [pid 300] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./39/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./39/binderfs", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./39/binderfs" [pid 300] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./39" [pid 297] <... umount2 resumed>) = 0 [pid 300] openat(AT_FDCWD, "./39/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./40", 0777 [pid 300] <... openat resumed>) = 4 [pid 297] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./38/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 462 attached [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./38/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./38/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] rmdir("./39/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 462] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 462 [pid 298] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 462] <... set_robust_list resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 462] chdir("./40" [pid 298] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 462] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 297] getdents64(4, [pid 462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./39/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 462] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 297] getdents64(4, [pid 462] setpgid(0, 0 [pid 300] unlink("./39/binderfs" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 462] <... setpgid resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] close(4) = 0 [pid 462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 297] rmdir("./38/binderfs2" [pid 462] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 462] write(3, "1000", 4) = 4 [pid 300] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 462] close(3 [pid 300] <... close resumed>) = 0 [pid 298] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 462] <... close resumed>) = 0 [pid 300] rmdir("./39" [pid 462] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./41/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 462] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./38/binderfs", [pid 300] mkdir("./40", 0777executing program [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 462] write(1, "executing program\n", 18 [pid 300] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./41/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] unlink("./38/binderfs" [pid 462] <... write resumed>) = 18 [pid 462] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... unlink resumed>) = 0 [pid 462] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 462] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(3, ./strace-static-x86_64: Process 463 attached [pid 462] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 463] set_robust_list(0x5555726b0660, 24 [pid 298] close(4 [pid 463] <... set_robust_list resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] close(3 [pid 463] chdir("./40" [pid 462] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 463 [pid 298] rmdir("./41/binderfs2" [pid 297] <... close resumed>) = 0 [pid 463] <... chdir resumed>) = 0 [pid 462] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./38" [pid 463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 462] exit_group(0) = ? [pid 463] <... prctl resumed>) = 0 [pid 463] setpgid(0, 0) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 462] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 463] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./41/binderfs", [pid 297] mkdir("./39", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 463] write(3, "1000", 4 [pid 298] unlink("./41/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 463] <... write resumed>) = 4 [pid 298] <... unlink resumed>) = 0 [pid 463] close(3) = 0 [pid 463] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] close(3 [pid 463] <... symlink resumed>) = 0 [pid 299] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 464 attached [pid 298] rmdir("./41" [pid 464] set_robust_list(0x5555726b0660, 24 [pid 299] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 executing program [pid 464] <... set_robust_list resumed>) = 0 [pid 463] write(1, "executing program\n", 18 [pid 299] newfstatat(3, "", [pid 298] mkdir("./42", 0777 [pid 464] chdir("./39" [pid 463] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 464 [pid 463] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 464] <... chdir resumed>) = 0 [pid 464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 463] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 464] <... prctl resumed>) = 0 [pid 299] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 464] setpgid(0, 0) = 0 [pid 463] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 465 attached [pid 464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 463] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 463] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 464] <... openat resumed>) = 3 [pid 299] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 465 [pid 464] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 465] set_robust_list(0x5555726b0660, 24 [pid 464] <... write resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./40/binderfs2", [pid 465] <... set_robust_list resumed>) = 0 [pid 464] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 464] <... close resumed>) = 0 [pid 299] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 464] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 463] <... openat resumed>) = 3 [pid 465] chdir("./42" [pid 464] <... symlink resumed>) = 0 [pid 463] exit_group(0 [pid 299] openat(AT_FDCWD, "./40/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 465] <... chdir resumed>) = 0 executing program [pid 465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 464] write(1, "executing program\n", 18 [pid 463] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 4 [pid 465] <... prctl resumed>) = 0 [pid 464] <... write resumed>) = 18 [pid 299] newfstatat(4, "", [pid 465] setpgid(0, 0 [pid 464] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 463] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 465] <... setpgid resumed>) = 0 [pid 299] getdents64(4, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 464] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(4 [pid 465] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 465] write(3, "1000", 4 [pid 464] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] rmdir("./40/binderfs2" [pid 465] <... write resumed>) = 4 [pid 465] close(3) = 0 [pid 465] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 executing program [pid 465] <... symlink resumed>) = 0 [pid 465] write(1, "executing program\n", 18) = 18 [pid 465] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 464] <... mount resumed>) = 0 [pid 299] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 464] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 465] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./40/binderfs", [pid 465] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 464] <... openat resumed>) = 3 [pid 465] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./40/binderfs" [pid 465] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... unlink resumed>) = 0 [pid 465] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 464] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 464] <... exit_group resumed>) = ? [pid 299] close(3 [pid 465] exit_group(0) = ? [pid 465] +++ exited with 0 +++ [pid 464] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./40" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./41", 0777) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555726b0650) = 466 ./strace-static-x86_64: Process 466 attached [pid 297] <... restart_syscall resumed>) = 0 [pid 466] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 466] chdir("./41" [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 466] <... chdir resumed>) = 0 [pid 466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 466] <... prctl resumed>) = 0 [pid 297] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 466] setpgid(0, 0) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 466] <... openat resumed>) = 3 [pid 298] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 466] write(3, "1000", 4) = 4 [pid 300] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 466] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 466] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./39/binderfs2", [pid 466] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./39/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 466] <... symlink resumed>) = 0 [pid 300] getdents64(3, [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 466] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] openat(AT_FDCWD, "./39/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 300] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 466] <... write resumed>) = 18 [pid 466] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 298] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 466] <... mkdirat resumed>) = 0 [pid 466] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./40/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 466] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./40/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./42/binderfs2", [pid 297] rmdir("./39/binderfs2" [pid 466] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 466] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 298] openat(AT_FDCWD, "./42/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 466] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./39/binderfs", [pid 466] <... exit_group resumed>) = ? [pid 300] close(4 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./40/binderfs2" [pid 297] unlink("./39/binderfs" [pid 466] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./40/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./42/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 300] unlink("./40/binderfs" [pid 299] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] rmdir("./39" [pid 300] getdents64(3, [pid 299] newfstatat(3, "", [pid 298] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./42/binderfs", [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./40", 0777 [pid 300] rmdir("./40" [pid 299] <... umount2 resumed>) = 0 [pid 298] unlink("./42/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 299] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./41/binderfs2", [pid 298] close(3 [pid 300] mkdir("./41", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./42"./strace-static-x86_64: Process 467 attached [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 467] set_robust_list(0x5555726b0660, 24 [pid 299] openat(AT_FDCWD, "./41/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 467] <... set_robust_list resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... openat resumed>) = 4 ./strace-static-x86_64: Process 468 attached [pid 467] chdir("./40" [pid 299] newfstatat(4, "", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 467 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] mkdir("./43", 0777 [pid 468] set_robust_list(0x5555726b0660, 24 [pid 467] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 468 [pid 299] getdents64(4, [pid 298] <... mkdir resumed>) = 0 [pid 468] <... set_robust_list resumed>) = 0 [pid 467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 468] chdir("./41" [pid 467] <... prctl resumed>) = 0 [pid 299] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 468] <... chdir resumed>) = 0 [pid 467] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 469 attached [pid 467] <... setpgid resumed>) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./41/binderfs2" [pid 467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 469] set_robust_list(0x5555726b0660, 24 [pid 468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 467] write(3, "1000", 4 [pid 469] <... set_robust_list resumed>) = 0 [pid 468] <... prctl resumed>) = 0 [pid 467] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 469 [pid 469] chdir("./43" [pid 468] setpgid(0, 0 [pid 467] close(3 [pid 299] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 469] <... chdir resumed>) = 0 [pid 468] <... setpgid resumed>) = 0 [pid 467] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./41/binderfs", [pid 469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 467] symlink("/dev/binderfs", "./binderfs" [pid 469] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./41/binderfs" [pid 467] <... symlink resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 469] setpgid(0, 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./41") = 0 [pid 299] mkdir("./42", 0777 [pid 468] <... openat resumed>) = 3 executing program [pid 469] <... setpgid resumed>) = 0 [pid 467] write(1, "executing program\n", 18 [pid 468] write(3, "1000", 4 [pid 469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 468] <... write resumed>) = 4 [pid 467] <... write resumed>) = 18 [pid 468] close(3) = 0 [pid 467] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 468] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 467] <... mkdirat resumed>) = 0 [pid 468] <... symlink resumed>) = 0 [pid 469] <... openat resumed>) = 3 [pid 468] write(1, "executing program\n", 18./strace-static-x86_64: Process 470 attached [pid 470] set_robust_list(0x5555726b0660, 24) = 0 executing program [pid 469] write(3, "1000", 4 [pid 468] <... write resumed>) = 18 [pid 469] <... write resumed>) = 4 [pid 467] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 468] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 469] close(3 [pid 470] chdir("./42" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 470 [pid 470] <... chdir resumed>) = 0 [pid 470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 470] setpgid(0, 0 [pid 468] <... mkdirat resumed>) = 0 [pid 470] <... setpgid resumed>) = 0 [pid 469] <... close resumed>) = 0 [pid 470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 469] symlink("/dev/binderfs", "./binderfs" [pid 468] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 470] <... openat resumed>) = 3 [pid 469] <... symlink resumed>) = 0 [pid 470] write(3, "1000", 4) = 4 [pid 470] close(3) = 0 [pid 470] symlink("/dev/binderfs", "./binderfs") = 0 [pid 470] write(1, "executing program\n", 18) = 18 [pid 470] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 468] <... mount resumed>) = 0 [pid 470] <... mkdirat resumed>) = 0 [pid 470] mount(NULL, "./binderfs2", "binder", 0, "stats=global," executing program [pid 467] <... mount resumed>) = 0 executing program [pid 469] write(1, "executing program\n", 18 [pid 468] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 467] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 469] <... write resumed>) = 18 [pid 470] <... mount resumed>) = 0 [pid 469] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 468] <... openat resumed>) = 3 [pid 467] <... openat resumed>) = 3 [pid 470] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 469] <... mkdirat resumed>) = 0 [pid 467] exit_group(0 [pid 470] exit_group(0 [pid 468] exit_group(0 [pid 470] <... exit_group resumed>) = ? [pid 467] <... exit_group resumed>) = ? [pid 469] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 468] <... exit_group resumed>) = ? [pid 470] +++ exited with 0 +++ [pid 467] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 468] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 469] <... mount resumed>) = 0 [pid 469] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 469] exit_group(0) = ? [pid 469] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./42/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./42/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] close(4 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] rmdir("./42/binderfs2" [pid 300] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./42/binderfs", [pid 297] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./42/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./41/binderfs2", [pid 299] <... unlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 298] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 300] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 300] openat(AT_FDCWD, "./41/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] rmdir("./42" [pid 300] newfstatat(4, "", [pid 298] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./40/binderfs2", [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 299] mkdir("./43", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./40/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./43/binderfs2", [pid 300] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./40/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] rmdir("./41/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 298] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./41/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./41" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./43/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 297] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 297] rmdir("./40/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./42", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 471 attached [pid 471] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] getdents64(4, [pid 297] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 471 [pid 471] chdir("./43" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 297] newfstatat(AT_FDCWD, "./40/binderfs", [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 472 attached [pid 298] rmdir("./43/binderfs2" [pid 297] unlink("./40/binderfs" [pid 472] set_robust_list(0x5555726b0660, 24 [pid 471] <... chdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 472] <... set_robust_list resumed>) = 0 [pid 471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 472 [pid 297] <... unlink resumed>) = 0 [pid 472] chdir("./42" [pid 471] <... prctl resumed>) = 0 [pid 298] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 472] <... chdir resumed>) = 0 [pid 471] setpgid(0, 0 [pid 297] <... close resumed>) = 0 [pid 472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 471] <... setpgid resumed>) = 0 [pid 472] <... prctl resumed>) = 0 [pid 298] unlink("./43/binderfs" [pid 297] rmdir("./40" [pid 472] setpgid(0, 0 [pid 471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... unlink resumed>) = 0 [pid 472] <... setpgid resumed>) = 0 [pid 472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 471] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 472] <... openat resumed>) = 3 [pid 471] write(3, "1000", 4 [pid 472] write(3, "1000", 4 [pid 471] <... write resumed>) = 4 [pid 298] getdents64(3, [pid 297] mkdir("./41", 0777 [pid 472] <... write resumed>) = 4 [pid 471] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 472] close(3 [pid 471] <... close resumed>) = 0 [pid 472] <... close resumed>) = 0 [pid 471] symlink("/dev/binderfs", "./binderfs" [pid 298] close(3 [pid 472] symlink("/dev/binderfs", "./binderfs" [pid 471] <... symlink resumed>) = 0 [pid 472] <... symlink resumed>) = 0 executing program executing program [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./43" [pid 472] write(1, "executing program\n", 18 [pid 471] write(1, "executing program\n", 18 [pid 472] <... write resumed>) = 18 [pid 471] <... write resumed>) = 18 [pid 472] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 471] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] mkdir("./44", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 472] <... mkdirat resumed>) = 0 [pid 471] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 471] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 472] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 473 attached [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 473 [pid 473] set_robust_list(0x5555726b0660, 24 [pid 472] <... mount resumed>) = 0 ./strace-static-x86_64: Process 474 attached [pid 473] <... set_robust_list resumed>) = 0 [pid 473] chdir("./41" [pid 471] <... mount resumed>) = 0 [pid 474] set_robust_list(0x5555726b0660, 24 [pid 473] <... chdir resumed>) = 0 [pid 473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 471] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 474 [pid 474] <... set_robust_list resumed>) = 0 [pid 472] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 471] <... openat resumed>) = 3 [pid 471] exit_group(0 [pid 473] setpgid(0, 0 [pid 471] <... exit_group resumed>) = ? [pid 474] chdir("./44" [pid 472] <... openat resumed>) = 3 [pid 473] <... setpgid resumed>) = 0 [pid 474] <... chdir resumed>) = 0 [pid 473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 472] exit_group(0 [pid 471] +++ exited with 0 +++ [pid 474] setpgid(0, 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 474] <... setpgid resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 473] <... openat resumed>) = 3 [pid 472] <... exit_group resumed>) = ? [pid 473] write(3, "1000", 4 [pid 474] <... openat resumed>) = 3 [pid 473] <... write resumed>) = 4 [pid 473] close(3) = 0 [pid 473] symlink("/dev/binderfs", "./binderfs") = 0 [pid 473] write(1, "executing program\n", 18) = 18 [pid 473] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 472] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 474] write(3, "1000", 4) = 4 [pid 474] close(3 [pid 473] <... mkdirat resumed>) = 0 [pid 474] <... close resumed>) = 0 [pid 474] symlink("/dev/binderfs", "./binderfs" [pid 473] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 474] <... symlink resumed>) = 0 executing program [pid 474] write(1, "executing program\n", 18 [pid 473] <... mount resumed>) = 0 [pid 474] <... write resumed>) = 18 [pid 474] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 473] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 474] <... mkdirat resumed>) = 0 [pid 473] exit_group(0 [pid 474] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 473] <... exit_group resumed>) = ? [pid 474] <... mount resumed>) = 0 [pid 474] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 473] +++ exited with 0 +++ [pid 474] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... restart_syscall resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 474] exit_group(0 [pid 300] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 474] <... exit_group resumed>) = ? [pid 300] newfstatat(3, "", [pid 299] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 474] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./42/binderfs2", [pid 299] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./42/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 299] getdents64(3, [pid 300] rmdir("./42/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./42/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./42/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] getdents64(3, [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./43/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./42" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./43/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] mkdir("./43", 0777 [pid 299] newfstatat(4, "", [pid 298] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = 0 [pid 298] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./44/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./41/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./41/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 475 attached [pid 299] getdents64(4, [pid 475] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 475 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 475] <... set_robust_list resumed>) = 0 [pid 299] close(4 [pid 475] chdir("./43" [pid 298] openat(AT_FDCWD, "./44/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./41/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 475] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] rmdir("./43/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] newfstatat(4, "", [pid 475] <... prctl resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 475] setpgid(0, 0 [pid 299] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 475] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] newfstatat(AT_FDCWD, "./43/binderfs", [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 475] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 475] write(3, "1000", 4 [pid 299] unlink("./43/binderfs" [pid 298] close(4 [pid 475] <... write resumed>) = 4 [pid 475] close(3 [pid 299] <... unlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./41/binderfs2" [pid 475] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 298] rmdir("./44/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 475] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./41/binderfs", [pid 475] <... symlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./41/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 299] close(3 [pid 297] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 executing program [pid 299] rmdir("./43" [pid 475] write(1, "executing program\n", 18 [pid 297] getdents64(3, [pid 475] <... write resumed>) = 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 475] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(3) = 0 [pid 297] rmdir("./41" [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./42", 0777 [pid 475] <... mkdirat resumed>) = 0 [pid 475] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] mkdir("./44", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./44/binderfs", [pid 297] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 476 attached [pid 475] <... mount resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 476 [pid 476] set_robust_list(0x5555726b0660, 24) = 0 [pid 476] chdir("./42" [pid 475] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... mkdir resumed>) = 0 [pid 298] unlink("./44/binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 476] <... chdir resumed>) = 0 [pid 476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] <... unlink resumed>) = 0 [pid 476] setpgid(0, 0) = 0 [pid 476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(3, ./strace-static-x86_64: Process 477 attached [pid 476] <... openat resumed>) = 3 [pid 475] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 477] set_robust_list(0x5555726b0660, 24 [pid 476] write(3, "1000", 4 [pid 477] <... set_robust_list resumed>) = 0 [pid 476] <... write resumed>) = 4 [pid 477] chdir("./44" [pid 476] close(3 [pid 475] exit_group(0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 477 [pid 298] close(3 [pid 477] <... chdir resumed>) = 0 [pid 476] <... close resumed>) = 0 [pid 475] <... exit_group resumed>) = ? [pid 298] <... close resumed>) = 0 [pid 477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 476] symlink("/dev/binderfs", "./binderfs" [pid 298] rmdir("./44" [pid 477] <... prctl resumed>) = 0 [pid 476] <... symlink resumed>) = 0 [pid 477] setpgid(0, 0 [pid 298] <... rmdir resumed>) = 0 [pid 477] <... setpgid resumed>) = 0 executing program [pid 476] write(1, "executing program\n", 18 [pid 298] mkdir("./45", 0777 [pid 477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 476] <... write resumed>) = 18 [pid 477] <... openat resumed>) = 3 [pid 476] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 477] write(3, "1000", 4) = 4 [pid 477] close(3 [pid 476] <... mkdirat resumed>) = 0 [pid 475] +++ exited with 0 +++ [pid 477] <... close resumed>) = 0 [pid 477] symlink("/dev/binderfs", "./binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 477] <... symlink resumed>) = 0 [pid 476] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program ./strace-static-x86_64: Process 478 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 478 [pid 478] set_robust_list(0x5555726b0660, 24 [pid 477] write(1, "executing program\n", 18 [pid 476] <... mount resumed>) = 0 [pid 478] <... set_robust_list resumed>) = 0 [pid 477] <... write resumed>) = 18 [pid 478] chdir("./45" [pid 477] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 476] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 478] <... chdir resumed>) = 0 [pid 476] exit_group(0) = ? [pid 477] <... mkdirat resumed>) = 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 [pid 477] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 478] <... openat resumed>) = 3 [pid 478] write(3, "1000", 4 [pid 476] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 477] <... mount resumed>) = 0 [pid 478] <... write resumed>) = 4 [pid 297] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 478] close(3 [pid 477] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 478] <... close resumed>) = 0 [pid 478] symlink("/dev/binderfs", "./binderfs" [pid 477] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 478] <... symlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 478] write(1, "executing program\n", 18 [pid 297] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 477] exit_group(0 [pid 478] <... write resumed>) = 18 [pid 478] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 477] <... exit_group resumed>) = ? [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./42/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./42/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./42/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 477] +++ exited with 0 +++ [pid 300] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./42/binderfs2" [pid 478] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 478] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(3, "", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./42/binderfs" [pid 300] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3) = 0 [pid 297] rmdir("./42" [pid 300] <... umount2 resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./43", 0777 [pid 478] <... mount resumed>) = 0 [pid 300] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 478] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./43/binderfs2", [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 478] <... openat resumed>) = 3 [pid 300] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 479 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 479 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./43/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 479] set_robust_list(0x5555726b0660, 24 [pid 478] exit_group(0 [pid 300] <... openat resumed>) = 4 [pid 479] <... set_robust_list resumed>) = 0 [pid 478] <... exit_group resumed>) = ? [pid 300] newfstatat(4, "", [pid 479] chdir("./43" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 479] <... chdir resumed>) = 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 478] +++ exited with 0 +++ [pid 300] getdents64(4, [pid 479] close(3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(4, [pid 479] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 479] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] close(4 [pid 479] write(1, "executing program\n", 18executing program [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./43/binderfs2" [pid 479] <... write resumed>) = 18 [pid 479] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 479] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./43/binderfs", [pid 479] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 479] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] unlink("./43/binderfs" [pid 479] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 479] exit_group(0 [pid 300] getdents64(3, [pid 479] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./43" [pid 299] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 300] mkdir("./44", 0777 [pid 299] newfstatat(3, "", [pid 479] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 480 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 480 [pid 480] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./44/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] chdir("./44" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 480] <... chdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./44/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 480] setpgid(0, 0) = 0 [pid 299] getdents64(4, [pid 298] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 480] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 480] write(3, "1000", 4) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 480] close(3 [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 299] rmdir("./44/binderfs2" [pid 480] <... close resumed>) = 0 [pid 297] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 480] <... symlink resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 480] write(1, "executing program\n", 18executing program [pid 297] <... openat resumed>) = 3 [pid 480] <... write resumed>) = 18 [pid 299] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 480] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./44/binderfs", [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./44/binderfs" [pid 298] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 480] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./45/binderfs2", [pid 297] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./43/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./45/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./44" [pid 298] <... openat resumed>) = 4 [pid 480] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./43/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 480] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 480] exit_group(0 [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] openat(AT_FDCWD, "./43/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 480] <... exit_group resumed>) = ? [pid 297] <... openat resumed>) = 4 [pid 480] +++ exited with 0 +++ [pid 299] mkdir("./45", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] newfstatat(4, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./43/binderfs2" [pid 298] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 481 [pid 298] rmdir("./45/binderfs2"./strace-static-x86_64: Process 481 attached [pid 300] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 481] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 481] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./43/binderfs", [pid 481] chdir("./45" [pid 300] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 481] <... chdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] newfstatat(AT_FDCWD, "./45/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./43/binderfs" [pid 481] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 298] unlink("./45/binderfs" [pid 297] <... unlink resumed>) = 0 [pid 481] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 481] <... setpgid resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 298] close(3 [pid 481] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 481] write(3, "1000", 4) = 4 [pid 481] close(3 [pid 297] rmdir("./43" [pid 481] <... close resumed>) = 0 [pid 298] rmdir("./45" [pid 297] <... rmdir resumed>) = 0 [pid 481] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./46", 0777 [pid 297] mkdir("./44", 0777 [pid 481] write(1, "executing program\n", 18executing program [pid 300] newfstatat(AT_FDCWD, "./44/binderfs2", [pid 298] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 481] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./44/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 481] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(4, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 482 attached [pid 481] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 483 attached [pid 482] set_robust_list(0x5555726b0660, 24 [pid 483] set_robust_list(0x5555726b0660, 24 [pid 482] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 482 [pid 483] <... set_robust_list resumed>) = 0 [pid 481] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 482] chdir("./46" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 483 [pid 483] chdir("./44" [pid 481] <... mount resumed>) = 0 [pid 300] close(4) = 0 [pid 482] <... chdir resumed>) = 0 [pid 483] <... chdir resumed>) = 0 [pid 300] rmdir("./44/binderfs2" [pid 483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 483] <... prctl resumed>) = 0 [pid 483] setpgid(0, 0 [pid 482] <... prctl resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 483] <... setpgid resumed>) = 0 [pid 482] setpgid(0, 0 [pid 481] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 481] <... openat resumed>) = 3 [pid 300] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 483] <... openat resumed>) = 3 [pid 482] <... setpgid resumed>) = 0 [pid 481] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 481] <... exit_group resumed>) = ? [pid 483] write(3, "1000", 4 [pid 482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 481] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./44/binderfs", [pid 483] <... write resumed>) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 483] close(3) = 0 [pid 482] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 483] symlink("/dev/binderfs", "./binderfs" [pid 300] unlink("./44/binderfs" [pid 482] write(3, "1000", 4 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 483] <... symlink resumed>) = 0 [pid 482] <... write resumed>) = 4 [pid 482] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 482] <... close resumed>) = 0 [pid 300] close(3executing program [pid 483] write(1, "executing program\n", 18 [pid 482] symlink("/dev/binderfs", "./binderfs" [pid 483] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./44" [pid 483] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 482] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./45", 0777 [pid 483] <... mkdirat resumed>) = 0 [pid 482] write(1, "executing program\n", 18 executing program [pid 483] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 482] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 482] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 484 attached [pid 484] set_robust_list(0x5555726b0660, 24 [pid 483] <... mount resumed>) = 0 [pid 484] <... set_robust_list resumed>) = 0 [pid 484] chdir("./45" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 484 [pid 482] <... mkdirat resumed>) = 0 [pid 484] <... chdir resumed>) = 0 [pid 484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 484] setpgid(0, 0) = 0 [pid 482] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [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" [pid 482] <... mount resumed>) = 0 [pid 483] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLYexecuting program [pid 484] <... symlink resumed>) = 0 [pid 483] <... openat resumed>) = 3 [pid 482] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 484] write(1, "executing program\n", 18) = 18 [pid 483] exit_group(0 [pid 484] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 482] <... openat resumed>) = 3 [pid 483] <... exit_group resumed>) = ? [pid 484] <... mkdirat resumed>) = 0 [pid 484] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 482] exit_group(0) = ? [pid 484] <... mount resumed>) = 0 [pid 484] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 483] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 484] <... openat resumed>) = 3 [pid 297] <... restart_syscall resumed>) = 0 [pid 484] exit_group(0) = ? [pid 297] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 484] +++ exited with 0 +++ [pid 482] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=482, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./44/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./44/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./46/binderfs2", [pid 297] openat(AT_FDCWD, "./44/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./46/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(4, "", [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./44/binderfs2" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./45/binderfs2", [pid 298] getdents64(4, [pid 297] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./44/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] unlink("./44/binderfs" [pid 300] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./45/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./46/binderfs2" [pid 297] <... unlink resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 299] newfstatat(4, "", [pid 298] <... rmdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./44" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] mkdir("./45", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./46/binderfs", [pid 300] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./45/binderfs2" [pid 298] unlink("./46/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = 0 [pid 298] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 485 attached [pid 485] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 299] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 485] <... set_robust_list resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 485 [pid 485] chdir("./45" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 485] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./45/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./45/binderfs", [pid 298] <... close resumed>) = 0 [pid 485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 485] <... prctl resumed>) = 0 [pid 298] rmdir("./46" [pid 299] unlink("./45/binderfs" [pid 485] setpgid(0, 0) = 0 [pid 485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 485] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 485] write(3, "1000", 4) = 4 [pid 485] close(3) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, executing program [pid 298] mkdir("./47", 0777 [pid 300] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 300] openat(AT_FDCWD, "./45/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... close resumed>) = 0 [pid 485] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 4 [pid 299] rmdir("./45" [pid 485] <... symlink resumed>) = 0 [pid 485] write(1, "executing program\n", 18) = 18 [pid 298] <... mkdir resumed>) = 0 [pid 485] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 485] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 485] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] mkdir("./46", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./45/binderfs2" [pid 299] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 486 attached [pid 485] <... mount resumed>) = 0 [pid 485] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 486 [pid 486] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 486] chdir("./47" [pid 485] exit_group(0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 486] <... chdir resumed>) = 0 [pid 485] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 487 attached [pid 486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 485] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./45/binderfs", [pid 486] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 487 [pid 486] setpgid(0, 0 [pid 300] unlink("./45/binderfs" [pid 486] <... setpgid resumed>) = 0 [pid 487] set_robust_list(0x5555726b0660, 24 [pid 300] <... unlink resumed>) = 0 [pid 487] <... set_robust_list resumed>) = 0 [pid 486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 487] chdir("./46" [pid 486] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 487] <... chdir resumed>) = 0 [pid 486] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 486] <... write resumed>) = 4 [pid 300] close(3 [pid 487] <... prctl resumed>) = 0 [pid 486] close(3 [pid 487] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 486] <... close resumed>) = 0 [pid 300] rmdir("./45" [pid 487] <... setpgid resumed>) = 0 [pid 487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 486] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 487] write(3, "1000", 4) = 4 executing program [pid 487] close(3) = 0 [pid 487] symlink("/dev/binderfs", "./binderfs" [pid 486] <... symlink resumed>) = 0 [pid 487] <... symlink resumed>) = 0 [pid 486] write(1, "executing program\n", 18 [pid 300] mkdir("./46", 0777 [pid 486] <... write resumed>) = 18 executing program [pid 487] write(1, "executing program\n", 18) = 18 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 487] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 486] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 487] <... mkdirat resumed>) = 0 [pid 486] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 486] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 487] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(3, [pid 487] <... mount resumed>) = 0 [pid 486] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 488 attached [pid 486] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 488 [pid 487] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 488] set_robust_list(0x5555726b0660, 24 [pid 487] <... openat resumed>) = 3 [pid 486] <... openat resumed>) = 3 [pid 486] exit_group(0 [pid 488] <... set_robust_list resumed>) = 0 [pid 488] chdir("./46" [pid 486] <... exit_group resumed>) = ? [pid 488] <... chdir resumed>) = 0 [pid 487] exit_group(0 [pid 488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 487] <... exit_group resumed>) = ? [pid 488] <... prctl resumed>) = 0 [pid 487] +++ exited with 0 +++ [pid 486] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = 0 [pid 488] setpgid(0, 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 488] <... setpgid resumed>) = 0 [pid 297] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 488] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./45/binderfs2", [pid 488] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 488] <... write resumed>) = 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./45/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 488] close(3 [pid 298] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 488] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./45/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 488] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(3, "", [pid 297] <... openat resumed>) = 4 [pid 488] <... symlink resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 488] write(1, "executing program\n", 18 [pid 297] getdents64(4, [pid 488] <... write resumed>) = 18 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 488] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(4 [pid 488] <... mkdirat resumed>) = 0 [pid 299] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] rmdir("./45/binderfs2" [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 488] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 488] <... mount resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = 0 [pid 299] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./45/binderfs") = 0 [pid 488] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 488] <... openat resumed>) = 3 [pid 298] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 488] exit_group(0 [pid 299] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./47/binderfs2", [pid 488] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 488] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./46/binderfs2", [pid 298] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./47/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./45" [pid 300] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./46/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./46", 0777 [pid 300] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] close(4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 300] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] rmdir("./47/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] close(4./strace-static-x86_64: Process 489 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 489 [pid 489] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 489] chdir("./46") = 0 [pid 489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... close resumed>) = 0 [pid 298] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./46/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 489] <... prctl resumed>) = 0 [pid 489] setpgid(0, 0) = 0 [pid 489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./47/binderfs", [pid 489] <... openat resumed>) = 3 [pid 489] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./46/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./47/binderfs" [pid 300] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./46/binderfs", [pid 489] <... write resumed>) = 4 [pid 489] close(3 [pid 298] <... unlink resumed>) = 0 [pid 489] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 489] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./46/binderfs" [pid 298] getdents64(3, [pid 489] <... symlink resumed>) = 0 executing program [pid 300] openat(AT_FDCWD, "./46/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 489] write(1, "executing program\n", 18 [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 489] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 489] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(3 [pid 300] newfstatat(4, "", [pid 299] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] rmdir("./47" [pid 299] rmdir("./46" [pid 489] <... mkdirat resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 489] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 489] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] mkdir("./47", 0777 [pid 298] mkdir("./48", 0777 [pid 300] close(4 [pid 489] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./46/binderfs2" [pid 489] <... openat resumed>) = 3 [pid 489] exit_group(0) = ? [pid 299] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 489] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./46/binderfs", ./strace-static-x86_64: Process 490 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 490] set_robust_list(0x5555726b0660, 24 [pid 300] unlink("./46/binderfs"./strace-static-x86_64: Process 491 attached [pid 490] <... set_robust_list resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 490] chdir("./48" [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 490] <... chdir resumed>) = 0 [pid 490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] close(3 [pid 491] set_robust_list(0x5555726b0660, 24 [pid 490] <... prctl resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 490 [pid 491] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 491 [pid 490] setpgid(0, 0 [pid 300] rmdir("./46" [pid 491] chdir("./47" [pid 490] <... setpgid resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 491] <... chdir resumed>) = 0 [pid 490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] mkdir("./47", 0777 [pid 491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 491] setpgid(0, 0) = 0 [pid 490] <... openat resumed>) = 3 [pid 491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 490] write(3, "1000", 4) = 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 492 attached [pid 491] <... openat resumed>) = 3 [pid 490] close(3 [pid 297] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 491] write(3, "1000", 4 [pid 490] <... close resumed>) = 0 [pid 492] set_robust_list(0x5555726b0660, 24 [pid 491] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 490] symlink("/dev/binderfs", "./binderfs"executing program [pid 492] <... set_robust_list resumed>) = 0 [pid 491] close(3 [pid 490] <... symlink resumed>) = 0 [pid 297] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 490] write(1, "executing program\n", 18 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 492 [pid 491] <... close resumed>) = 0 [pid 490] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 3 [pid 490] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 492] chdir("./47" [pid 491] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(3, "", [pid 492] <... chdir resumed>) = 0 [pid 491] <... symlink resumed>) = 0 [pid 492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 492] <... prctl resumed>) = 0 executing program [pid 492] setpgid(0, 0 [pid 490] <... mkdirat resumed>) = 0 [pid 297] getdents64(3, [pid 492] <... setpgid resumed>) = 0 [pid 491] write(1, "executing program\n", 18 [pid 490] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 491] <... write resumed>) = 18 [pid 490] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 490] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 492] <... openat resumed>) = 3 [pid 490] <... openat resumed>) = 3 [pid 491] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 492] write(3, "1000", 4 [pid 297] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 492] <... write resumed>) = 4 [pid 490] exit_group(0) = ? [pid 297] <... umount2 resumed>) = 0 [pid 492] close(3 [pid 491] <... mkdirat resumed>) = 0 [pid 492] <... close resumed>) = 0 [pid 491] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 492] symlink("/dev/binderfs", "./binderfs" [pid 490] +++ exited with 0 +++ [pid 492] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 492] write(1, "executing program\n", 18) = 18 [pid 491] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(AT_FDCWD, "./46/binderfs2", [pid 491] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 492] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 491] <... openat resumed>) = 3 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] umount2("./46/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 492] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 492] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 491] exit_group(0 [pid 297] openat(AT_FDCWD, "./46/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 491] <... exit_group resumed>) = ? [pid 298] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 492] <... mount resumed>) = 0 [pid 492] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 491] +++ exited with 0 +++ [pid 297] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 3 [pid 297] getdents64(4, [pid 492] <... openat resumed>) = 3 [pid 492] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 492] <... exit_group resumed>) = ? [pid 298] newfstatat(3, "", [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] close(4 [pid 298] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./46/binderfs2" [pid 492] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./46/binderfs", [pid 298] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./48/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./46/binderfs" [pid 298] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./48/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 298] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] close(3) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./46" [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./48/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./47", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./48/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./48" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./49", 0777./strace-static-x86_64: Process 493 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 493 [pid 493] set_robust_list(0x5555726b0660, 24) = 0 [pid 493] chdir("./47" [pid 298] <... mkdir resumed>) = 0 [pid 493] <... chdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 493] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 494 attached ) = 0 [pid 493] setpgid(0, 0 [pid 494] set_robust_list(0x5555726b0660, 24) = 0 [pid 494] chdir("./49" [pid 493] <... setpgid resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 494 [pid 494] <... chdir resumed>) = 0 [pid 494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 494] setpgid(0, 0 [pid 493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 494] <... setpgid resumed>) = 0 [pid 494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 493] <... openat resumed>) = 3 [pid 494] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 493] write(3, "1000", 4 [pid 494] write(3, "1000", 4 [pid 493] <... write resumed>) = 4 [pid 493] close(3) = 0 [pid 493] symlink("/dev/binderfs", "./binderfs" [pid 494] <... write resumed>) = 4 [pid 299] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 494] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 494] <... close resumed>) = 0 executing program [pid 494] symlink("/dev/binderfs", "./binderfs" [pid 493] <... symlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 493] write(1, "executing program\n", 18) = 18 [pid 299] <... openat resumed>) = 3 [pid 494] <... symlink resumed>) = 0 [pid 493] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 299] newfstatat(3, "", [pid 494] write(1, "executing program\n", 18 [pid 493] <... mkdirat resumed>) = 0 [pid 494] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 494] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 493] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 494] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 494] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 493] <... mount resumed>) = 0 [pid 299] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 493] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(3, "", [pid 299] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 493] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 493] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 493] <... exit_group resumed>) = ? [pid 494] <... mount resumed>) = 0 [pid 299] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 494] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 494] <... openat resumed>) = 3 [pid 493] +++ exited with 0 +++ [pid 300] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./47/binderfs2", [pid 494] exit_group(0 [pid 300] <... umount2 resumed>) = 0 [pid 494] <... exit_group resumed>) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./47/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./47/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 494] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./47/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=494, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, [pid 299] newfstatat(4, "", [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(4) = 0 [pid 299] getdents64(4, [pid 297] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./47/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 297] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] close(4 [pid 297] newfstatat(3, "", [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] rmdir("./47/binderfs2" [pid 300] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./47/binderfs", [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./47/binderfs" [pid 299] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... unlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 300] close(3 [pid 299] newfstatat(AT_FDCWD, "./47/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./47" [pid 298] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 299] unlink("./47/binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./48", 0777) = 0 [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./47/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 297] umount2("./47/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./49/binderfs2", [pid 299] rmdir("./47" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 495 attached [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./47/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./49/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 495] set_robust_list(0x5555726b0660, 24 [pid 297] newfstatat(4, "", [pid 495] <... set_robust_list resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 495 [pid 298] newfstatat(4, "", [pid 299] mkdir("./48", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 495] chdir("./48" [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 495] <... chdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] close(4) = 0 [pid 298] rmdir("./49/binderfs2" [pid 297] getdents64(4, [pid 495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 495] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 495] setpgid(0, 0) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./47/binderfs2" [pid 298] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./49/binderfs") = 0 [pid 298] getdents64(3, ./strace-static-x86_64: Process 496 attached 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 496] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 496] chdir("./48" [pid 495] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 496 [pid 298] <... close resumed>) = 0 [pid 495] write(3, "1000", 4 [pid 297] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 495] <... write resumed>) = 4 [pid 496] <... chdir resumed>) = 0 [pid 495] close(3 [pid 298] rmdir("./49" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 495] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 496] <... prctl resumed>) = 0 [pid 495] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(AT_FDCWD, "./47/binderfs", [pid 496] setpgid(0, 0) = 0 [pid 496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 495] <... symlink resumed>) = 0 [pid 298] mkdir("./50", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 495] write(1, "executing program\n", 18 [pid 297] unlink("./47/binderfs" [pid 496] <... openat resumed>) = 3 [pid 495] <... write resumed>) = 18 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 496] write(3, "1000", 4 [pid 495] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 496] <... write resumed>) = 4 [pid 496] close(3) = 0 [pid 496] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 297] getdents64(3, [pid 496] write(1, "executing program\n", 18) = 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 496] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 495] <... mkdirat resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 497 attached [pid 297] close(3 [pid 497] set_robust_list(0x5555726b0660, 24 [pid 496] <... mkdirat resumed>) = 0 [pid 495] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... close resumed>) = 0 [pid 497] <... set_robust_list resumed>) = 0 [pid 297] rmdir("./47" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 497 [pid 496] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 496] <... mount resumed>) = 0 [pid 495] <... mount resumed>) = 0 [pid 497] chdir("./50" [pid 297] mkdir("./48", 0777 [pid 497] <... chdir resumed>) = 0 [pid 496] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 495] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 496] <... openat resumed>) = 3 [pid 495] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 497] setpgid(0, 0 [pid 496] exit_group(0 [pid 495] exit_group(0 [pid 497] <... setpgid resumed>) = 0 [pid 497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 496] <... exit_group resumed>) = ? [pid 495] <... exit_group resumed>) = ? [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 496] +++ exited with 0 +++ [pid 495] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 498 attached [pid 497] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 497] write(3, "1000", 4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 498 [pid 497] <... write resumed>) = 4 [pid 300] --- 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] set_robust_list(0x5555726b0660, 24 [pid 497] close(3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 498] <... set_robust_list resumed>) = 0 [pid 498] chdir("./48" [pid 497] <... close resumed>) = 0 [pid 498] <... chdir resumed>) = 0 [pid 498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 497] symlink("/dev/binderfs", "./binderfs" [pid 498] <... prctl resumed>) = 0 [pid 498] setpgid(0, 0) = 0 [pid 498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 497] <... symlink resumed>) = 0 [pid 498] <... openat resumed>) = 3 [pid 498] write(3, "1000", 4) = 4 [pid 498] close(3executing program ) = 0 [pid 498] symlink("/dev/binderfs", "./binderfs" [pid 497] write(1, "executing program\n", 18 [pid 498] <... symlink resumed>) = 0 executing program [pid 497] <... write resumed>) = 18 [pid 498] write(1, "executing program\n", 18 [pid 497] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 498] <... write resumed>) = 18 [pid 498] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 497] <... mkdirat resumed>) = 0 [pid 498] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 497] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 498] <... mount resumed>) = 0 [pid 498] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 498] exit_group(0) = ? [pid 497] <... mount resumed>) = 0 [pid 497] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 498] +++ exited with 0 +++ [pid 497] <... openat resumed>) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 497] exit_group(0) = ? [pid 497] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", [pid 300] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... openat resumed>) = 3 [pid 299] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 299] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./48/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./48/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 298] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 297] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] getdents64(3, [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./48/binderfs2" [pid 297] newfstatat(3, "", [pid 300] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./48/binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./50/binderfs2", [pid 297] getdents64(3, [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./48" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./48/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./50/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = 0 [pid 299] mkdir("./49", 0777 [pid 300] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./48/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 499 attached [pid 499] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 499 [pid 499] <... set_robust_list resumed>) = 0 [pid 499] chdir("./49" [pid 300] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./48/binderfs2", [pid 300] newfstatat(4, "", [pid 499] <... chdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./48/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 499] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./48/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(4 [pid 499] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 499] <... setpgid resumed>) = 0 [pid 300] rmdir("./48/binderfs2" [pid 298] <... close resumed>) = 0 [pid 499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] newfstatat(4, "", [pid 499] <... openat resumed>) = 3 [pid 298] rmdir("./50/binderfs2" [pid 499] write(3, "1000", 4) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 499] close(3) = 0 [pid 499] symlink("/dev/binderfs", "./binderfs"executing program [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 499] <... symlink resumed>) = 0 [pid 499] write(1, "executing program\n", 18) = 18 [pid 499] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 499] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./48/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 499] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./50/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 499] <... mount resumed>) = 0 [pid 300] unlink("./48/binderfs" [pid 297] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 499] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... unlink resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] unlink("./50/binderfs" [pid 499] <... openat resumed>) = 3 [pid 499] exit_group(0 [pid 297] rmdir("./48/binderfs2" [pid 499] <... exit_group resumed>) = ? [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] close(3 [pid 297] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 499] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./48" [pid 298] rmdir("./50" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(AT_FDCWD, "./48/binderfs", [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./48/binderfs" [pid 300] mkdir("./49", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 298] mkdir("./51", 0777 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./48" [pid 298] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./49", 0777) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 500 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 500 [pid 500] set_robust_list(0x5555726b0660, 24./strace-static-x86_64: Process 501 attached ) = 0 [pid 500] chdir("./49") = 0 [pid 500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 502 attached [pid 500] setpgid(0, 0 [pid 502] set_robust_list(0x5555726b0660, 24 [pid 500] <... setpgid resumed>) = 0 [pid 501] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 502 [pid 502] <... set_robust_list resumed>) = 0 [pid 501] <... set_robust_list resumed>) = 0 [pid 500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 501 [pid 502] chdir("./49" [pid 501] chdir("./51" [pid 500] <... openat resumed>) = 3 [pid 502] <... chdir resumed>) = 0 [pid 502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 500] write(3, "1000", 4 [pid 502] <... prctl resumed>) = 0 [pid 501] <... chdir resumed>) = 0 [pid 500] <... write resumed>) = 4 [pid 502] setpgid(0, 0 [pid 501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 500] close(3 [pid 502] <... setpgid resumed>) = 0 [pid 501] <... prctl resumed>) = 0 [pid 500] <... close resumed>) = 0 [pid 502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 501] setpgid(0, 0) = 0 [pid 501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 500] symlink("/dev/binderfs", "./binderfs" [pid 502] <... openat resumed>) = 3 [pid 501] <... openat resumed>) = 3 [pid 501] write(3, "1000", 4 [pid 502] write(3, "1000", 4 [pid 500] <... symlink resumed>) = 0 [pid 502] <... write resumed>) = 4 [pid 501] <... write resumed>) = 4 [pid 501] close(3) = 0 [pid 501] symlink("/dev/binderfs", "./binderfs"executing program [pid 502] close(3 [pid 500] write(1, "executing program\n", 18 [pid 502] <... close resumed>) = 0 [pid 501] <... symlink resumed>) = 0 [pid 500] <... write resumed>) = 18 [pid 502] symlink("/dev/binderfs", "./binderfs"executing program [pid 500] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 502] <... symlink resumed>) = 0 [pid 501] write(1, "executing program\n", 18 [pid 500] <... mkdirat resumed>) = 0 executing program [pid 502] write(1, "executing program\n", 18 [pid 501] <... write resumed>) = 18 [pid 502] <... write resumed>) = 18 [pid 502] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 501] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 502] <... mkdirat resumed>) = 0 [pid 500] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 501] <... mkdirat resumed>) = 0 [pid 502] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 500] <... mount resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 501] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 500] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 3 [pid 500] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 501] <... mount resumed>) = 0 [pid 500] exit_group(0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 500] <... exit_group resumed>) = ? [pid 502] <... mount resumed>) = 0 [pid 501] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 502] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 501] <... openat resumed>) = 3 [pid 500] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = 0 [pid 501] exit_group(0 [pid 502] exit_group(0 [pid 501] <... exit_group resumed>) = ? [pid 299] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 502] <... exit_group resumed>) = ? [pid 502] +++ exited with 0 +++ [pid 501] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./49/binderfs2", [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... openat resumed>) = 3 [pid 300] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./49/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 298] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(3, "", [pid 297] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 298] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 298] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./49/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./49/binderfs2" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./49/binderfs2", [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./49/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./49/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./49/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(AT_FDCWD, "./49/binderfs", [pid 298] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] unlink("./49/binderfs" [pid 298] newfstatat(AT_FDCWD, "./51/binderfs2", [pid 297] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(4 [pid 299] getdents64(3, [pid 298] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(3 [pid 298] openat(AT_FDCWD, "./51/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./49" [pid 298] newfstatat(4, "", [pid 297] close(4 [pid 300] rmdir("./49/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] mkdir("./50", 0777 [pid 298] getdents64(4, [pid 297] rmdir("./49/binderfs2" [pid 300] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./49/binderfs", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 300] unlink("./49/binderfs" [pid 297] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 503 attached [pid 503] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(3, [pid 503] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./49/binderfs", [pid 503] chdir("./50" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 503 [pid 298] close(4 [pid 300] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 503] <... chdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] unlink("./49/binderfs" [pid 503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] rmdir("./49" [pid 298] rmdir("./51/binderfs2" [pid 503] <... prctl resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] mkdir("./50", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 503] setpgid(0, 0 [pid 298] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 503] <... setpgid resumed>) = 0 [pid 503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 503] <... openat resumed>) = 3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(AT_FDCWD, "./51/binderfs", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 298] unlink("./51/binderfs" [pid 503] write(3, "1000", 4 [pid 297] rmdir("./49" [pid 503] <... write resumed>) = 4 ./strace-static-x86_64: Process 504 attached [pid 297] <... rmdir resumed>) = 0 [pid 504] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 504 [pid 298] <... unlink resumed>) = 0 [pid 504] <... set_robust_list resumed>) = 0 [pid 504] chdir("./50" [pid 503] close(3 [pid 298] getdents64(3, [pid 297] mkdir("./50", 0777 [pid 504] <... chdir resumed>) = 0 [pid 503] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 503] symlink("/dev/binderfs", "./binderfs" [pid 298] close(3 [pid 504] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program ) = 0 [pid 503] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 504] setpgid(0, 0 [pid 503] write(1, "executing program\n", 18 [pid 297] <... mkdir resumed>) = 0 [pid 298] rmdir("./51" [pid 504] <... setpgid resumed>) = 0 [pid 503] <... write resumed>) = 18 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 503] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 505 attached [pid 298] mkdir("./52", 0777 [pid 505] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 505 [pid 505] <... set_robust_list resumed>) = 0 [pid 505] chdir("./50" [pid 504] <... openat resumed>) = 3 [pid 504] write(3, "1000", 4 [pid 503] <... mkdirat resumed>) = 0 [pid 504] <... write resumed>) = 4 [pid 505] <... chdir resumed>) = 0 [pid 504] close(3 [pid 503] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 504] <... close resumed>) = 0 [pid 504] symlink("/dev/binderfs", "./binderfs" [pid 505] <... prctl resumed>) = 0 [pid 504] <... symlink resumed>) = 0 [pid 503] <... mount resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 505] setpgid(0, 0) = 0 [pid 504] write(1, "executing program\n", 18executing program [pid 505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 504] <... write resumed>) = 18 [pid 505] write(3, "1000", 4 [pid 504] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 503] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY./strace-static-x86_64: Process 506 attached [pid 505] <... write resumed>) = 4 [pid 505] close(3) = 0 [pid 503] <... openat resumed>) = 3 [pid 504] <... mkdirat resumed>) = 0 [pid 506] set_robust_list(0x5555726b0660, 24 [pid 505] symlink("/dev/binderfs", "./binderfs" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 506 [pid 506] <... set_robust_list resumed>) = 0 [pid 504] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 506] chdir("./52" [pid 503] exit_group(0) = ? [pid 506] <... chdir resumed>) = 0 [pid 505] <... symlink resumed>) = 0 [pid 504] <... mount resumed>) = 0 [pid 503] +++ exited with 0 +++ [pid 506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 505] write(1, "executing program\n", 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 506] <... prctl resumed>) = 0 [pid 505] <... write resumed>) = 18 [pid 504] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 506] setpgid(0, 0 [pid 505] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 506] <... setpgid resumed>) = 0 [pid 505] <... mkdirat resumed>) = 0 [pid 504] <... openat resumed>) = 3 [pid 506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 504] exit_group(0) = ? [pid 299] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 506] <... openat resumed>) = 3 [pid 505] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 506] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 505] <... mount resumed>) = 0 [pid 504] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 506] <... write resumed>) = 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 506] close(3 [pid 505] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 3 [pid 506] <... close resumed>) = 0 [pid 300] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 506] symlink("/dev/binderfs", "./binderfs"executing program [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 506] <... symlink resumed>) = 0 [pid 505] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 506] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 506] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 3 [pid 506] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 505] exit_group(0 [pid 300] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 505] <... exit_group resumed>) = ? [pid 506] <... mkdirat resumed>) = 0 [pid 505] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 506] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 506] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 506] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 506] exit_group(0) = ? [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./50/binderfs2", [pid 300] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./50/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(AT_FDCWD, "./50/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 506] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./50/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(4, "", [pid 299] getdents64(4, [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] getdents64(4, [pid 299] close(4 [pid 297] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 298] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 297] <... umount2 resumed>) = 0 [pid 299] rmdir("./50/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./50/binderfs2" [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./50/binderfs2", [pid 299] unlink("./50/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] umount2("./50/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./50/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./50" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(4, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./50/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] mkdir("./51", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, [pid 300] unlink("./50/binderfs" [pid 298] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./52/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 298] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./50/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 507 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 507 [pid 507] set_robust_list(0x5555726b0660, 24 [pid 297] <... rmdir resumed>) = 0 [pid 507] <... set_robust_list resumed>) = 0 [pid 300] close(3 [pid 298] openat(AT_FDCWD, "./52/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 507] chdir("./51") = 0 [pid 507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 507] <... prctl resumed>) = 0 [pid 300] rmdir("./50" [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 507] setpgid(0, 0) = 0 [pid 507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./50/binderfs", [pid 507] <... openat resumed>) = 3 [pid 507] write(3, "1000", 4 [pid 300] mkdir("./51", 0777 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] unlink("./50/binderfs" [pid 298] getdents64(4, [pid 507] <... write resumed>) = 4 [pid 507] close(3) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 507] symlink("/dev/binderfs", "./binderfs" [pid 298] close(4 [pid 507] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] getdents64(3, executing program [pid 507] write(1, "executing program\n", 18 [pid 298] <... close resumed>) = 0 [pid 507] <... write resumed>) = 18 [pid 507] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] rmdir("./52/binderfs2") = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 507] <... mkdirat resumed>) = 0 [pid 297] close(3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 507] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 508 attached ) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./50" [pid 508] set_robust_list(0x5555726b0660, 24 [pid 507] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 508] <... set_robust_list resumed>) = 0 [pid 507] exit_group(0) = ? [pid 297] <... rmdir resumed>) = 0 [pid 508] chdir("./51" [pid 298] newfstatat(AT_FDCWD, "./52/binderfs", [pid 508] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 508 [pid 297] mkdir("./51", 0777 [pid 508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./52/binderfs" [pid 508] <... prctl resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 508] setpgid(0, 0) = 0 [pid 298] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 507] +++ exited with 0 +++ [pid 298] close(3 [pid 508] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./52" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 508] write(3, "1000", 4) = 4 [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 509 attached [pid 508] close(3 [pid 298] mkdir("./53", 0777 [pid 508] <... close resumed>) = 0 [pid 509] set_robust_list(0x5555726b0660, 24 [pid 508] symlink("/dev/binderfs", "./binderfs" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 509 [pid 509] <... set_robust_list resumed>) = 0 [pid 508] <... symlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 509] chdir("./51" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 508] write(1, "executing program\n", 18executing program ) = 18 [pid 299] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 510 attached [pid 509] <... chdir resumed>) = 0 [pid 508] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 510] set_robust_list(0x5555726b0660, 24 [pid 509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 510] <... set_robust_list resumed>) = 0 [pid 509] <... prctl resumed>) = 0 [pid 508] <... mkdirat resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 510 [pid 510] chdir("./53" [pid 509] setpgid(0, 0 [pid 508] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 509] <... setpgid resumed>) = 0 [pid 510] <... chdir resumed>) = 0 [pid 510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... openat resumed>) = 3 [pid 510] <... prctl resumed>) = 0 [pid 509] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 510] setpgid(0, 0 [pid 509] write(3, "1000", 4 [pid 508] <... mount resumed>) = 0 [pid 510] <... setpgid resumed>) = 0 [pid 299] getdents64(3, [pid 509] <... write resumed>) = 4 [pid 508] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 509] close(3 [pid 510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 509] <... close resumed>) = 0 [pid 508] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 509] symlink("/dev/binderfs", "./binderfs" [pid 510] <... openat resumed>) = 3 [pid 509] <... symlink resumed>) = 0 [pid 299] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 509] write(1, "executing program\n", 18 [pid 508] exit_group(0executing program [pid 510] write(3, "1000", 4 [pid 509] <... write resumed>) = 18 [pid 508] <... exit_group resumed>) = ? [pid 510] <... write resumed>) = 4 [pid 510] close(3) = 0 [pid 510] symlink("/dev/binderfs", "./binderfs") = 0 [pid 508] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = 0 [pid 509] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...>executing program [pid 510] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 510] <... write resumed>) = 18 [pid 510] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 509] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./51/binderfs2", [pid 300] <... restart_syscall resumed>) = 0 [pid 509] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 510] <... mkdirat resumed>) = 0 [pid 510] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 509] <... mount resumed>) = 0 [pid 299] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 510] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 509] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 510] <... openat resumed>) = 3 [pid 509] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 510] exit_group(0 [pid 509] exit_group(0 [pid 300] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./51/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 510] <... exit_group resumed>) = ? [pid 509] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 509] +++ exited with 0 +++ [pid 510] +++ exited with 0 +++ [pid 300] newfstatat(3, "", [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=510, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=509, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 300] newfstatat(AT_FDCWD, "./51/binderfs2", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./51/binderfs2" [pid 298] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./51/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 298] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 298] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./51/binderfs", [pid 298] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./51/binderfs2") = 0 [pid 299] unlink("./51/binderfs" [pid 298] getdents64(3, [pid 300] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./51/binderfs" [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./51" [pid 299] close(3 [pid 298] <... umount2 resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./51" [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./52", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./53/binderfs2", [pid 299] mkdir("./52", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 511 ./strace-static-x86_64: Process 511 attached [pid 298] openat(AT_FDCWD, "./53/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 512 attached [pid 511] set_robust_list(0x5555726b0660, 24 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 512] set_robust_list(0x5555726b0660, 24 [pid 511] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 512 [pid 512] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 512] chdir("./52" [pid 511] chdir("./52" [pid 298] getdents64(4, [pid 512] <... chdir resumed>) = 0 [pid 512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 512] setpgid(0, 0 [pid 511] <... chdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... restart_syscall resumed>) = 0 [pid 512] <... setpgid resumed>) = 0 [pid 511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(4, [pid 512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 511] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 512] <... openat resumed>) = 3 [pid 511] setpgid(0, 0 [pid 298] close(4 [pid 297] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 512] write(3, "1000", 4 [pid 511] <... setpgid resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 512] <... write resumed>) = 4 [pid 297] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 512] close(3 [pid 511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] rmdir("./53/binderfs2" [pid 297] <... openat resumed>) = 3 [pid 512] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 512] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 512] <... symlink resumed>) = 0 [pid 511] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 511] write(3, "1000", 4 [pid 298] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 511] <... write resumed>) = 4 [pid 511] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 511] <... close resumed>) = 0 [pid 512] write(1, "executing program\n", 18 [pid 297] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 512] <... write resumed>) = 18 [pid 511] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(AT_FDCWD, "./53/binderfs", [pid 512] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 512] <... mkdirat resumed>) = 0 [pid 511] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./53/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./51/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 511] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 511] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./51/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 511] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 512] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./51/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 512] <... mount resumed>) = 0 [pid 511] <... mkdirat resumed>) = 0 [pid 298] close(3 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] <... close resumed>) = 0 [pid 511] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] rmdir("./53" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 512] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] getdents64(4, [pid 298] <... rmdir resumed>) = 0 [pid 512] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 512] exit_group(0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./51/binderfs2" [pid 511] <... mount resumed>) = 0 [pid 298] mkdir("./54", 0777 [pid 511] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 512] <... exit_group resumed>) = ? [pid 512] +++ exited with 0 +++ [pid 511] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 511] exit_group(0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./51/binderfs"./strace-static-x86_64: Process 513 attached [pid 511] <... exit_group resumed>) = ? [pid 297] <... unlink resumed>) = 0 [pid 513] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 513] chdir("./54") = 0 [pid 297] close(3 [pid 513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... close resumed>) = 0 [pid 513] <... prctl resumed>) = 0 [pid 299] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./51" [pid 513] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 513 [pid 299] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 513] <... setpgid resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 511] +++ exited with 0 +++ [pid 299] newfstatat(3, "", [pid 513] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(3, [pid 513] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] mkdir("./52", 0777 [pid 513] <... write resumed>) = 4 [pid 299] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 513] close(3) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 513] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = 0 executing program [pid 513] write(1, "executing program\n", 18 [pid 299] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 514 attached [pid 513] <... write resumed>) = 18 [pid 513] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 514] set_robust_list(0x5555726b0660, 24 [pid 299] newfstatat(AT_FDCWD, "./52/binderfs2", [pid 514] <... set_robust_list resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 514] chdir("./52" [pid 513] <... mkdirat resumed>) = 0 [pid 299] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 514 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 514] <... chdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./52/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 513] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(4, "", [pid 514] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 514] setpgid(0, 0 [pid 513] <... mount resumed>) = 0 [pid 299] getdents64(4, [pid 514] <... setpgid resumed>) = 0 [pid 513] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 513] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 513] exit_group(0 [pid 514] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 514] write(3, "1000", 4 [pid 299] close(4 [pid 513] <... exit_group resumed>) = ? [pid 514] <... write resumed>) = 4 [pid 513] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 514] close(3 [pid 299] rmdir("./52/binderfs2" [pid 514] <... close resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 514] symlink("/dev/binderfs", "./binderfs" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./52/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./52" [pid 514] <... symlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 executing program [pid 299] mkdir("./53", 0777 [pid 514] write(1, "executing program\n", 18) = 18 [pid 300] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 298] <... restart_syscall resumed>) = 0 [pid 514] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, ./strace-static-x86_64: Process 515 attached [pid 298] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 515] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 515 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 515] <... set_robust_list resumed>) = 0 [pid 514] <... mkdirat resumed>) = 0 [pid 300] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 515] chdir("./53" [pid 298] <... openat resumed>) = 3 [pid 515] <... chdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 515] <... prctl resumed>) = 0 [pid 298] getdents64(3, [pid 515] setpgid(0, 0) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 515] <... openat resumed>) = 3 [pid 515] write(3, "1000", 4) = 4 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 515] close(3) = 0 [pid 515] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 514] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 515] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./54/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 515] write(1, "executing program\n", 18 [pid 298] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 515] <... write resumed>) = 18 [pid 514] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 515] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(AT_FDCWD, "./52/binderfs2", [pid 298] openat(AT_FDCWD, "./54/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 515] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 300] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 514] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 515] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./52/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 515] <... mount resumed>) = 0 [pid 514] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 514] exit_group(0 [pid 298] rmdir("./54/binderfs2" [pid 514] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... rmdir resumed>) = 0 [pid 515] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 515] exit_group(0 [pid 514] +++ exited with 0 +++ [pid 300] getdents64(4, [pid 298] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 515] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 515] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./54/binderfs", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./54/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./54") = 0 [pid 298] mkdir("./55", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] close(4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 516 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... close resumed>) = 0 ./strace-static-x86_64: Process 516 attached [pid 300] rmdir("./52/binderfs2" [pid 299] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 516] set_robust_list(0x5555726b0660, 24 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 516] <... set_robust_list resumed>) = 0 [pid 300] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 516] chdir("./55" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(AT_FDCWD, "./52/binderfs", [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 516] <... chdir resumed>) = 0 [pid 300] unlink("./52/binderfs" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 516] <... prctl resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = 0 [pid 516] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 516] <... setpgid resumed>) = 0 [pid 300] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./53/binderfs2", [pid 297] newfstatat(3, "", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./52" [pid 297] getdents64(3, [pid 299] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./53/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] rmdir("./53/binderfs2" [pid 516] <... openat resumed>) = 3 [pid 297] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 516] write(3, "1000", 4 [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 516] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./53/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 516] close(3 [pid 300] mkdir("./53", 0777 [pid 516] <... close resumed>) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./53") = 0 [pid 516] symlink("/dev/binderfs", "./binderfs" [pid 300] <... mkdir resumed>) = 0 [pid 299] mkdir("./54", 0777 [pid 516] <... symlink resumed>) = 0 [pid 297] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 516] write(1, "executing program\n", 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 516] <... write resumed>) = 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./52/binderfs2", ./strace-static-x86_64: Process 517 attached [pid 516] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 517] set_robust_list(0x5555726b0660, 24 [pid 297] umount2("./52/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 517] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 517 [pid 517] chdir("./54" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 517] <... chdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./52/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 518 attached [pid 517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 517] setpgid(0, 0) = 0 [pid 516] <... mkdirat resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] newfstatat(4, "", [pid 518] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 518 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 518] <... set_robust_list resumed>) = 0 [pid 516] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(4, [pid 517] write(3, "1000", 4) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 517] close(3) = 0 [pid 297] getdents64(4, [pid 517] symlink("/dev/binderfs", "./binderfs" [pid 518] chdir("./53" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 517] <... symlink resumed>) = 0 [pid 517] write(1, "executing program\n", 18) = 18 [pid 517] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 516] <... mount resumed>) = 0 executing program [pid 297] close(4 [pid 517] <... mkdirat resumed>) = 0 [pid 517] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 517] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 517] exit_group(0) = ? [pid 517] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 518] <... chdir resumed>) = 0 [pid 518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] <... close resumed>) = 0 [pid 518] setpgid(0, 0) = 0 [pid 518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] rmdir("./52/binderfs2" [pid 516] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 518] <... openat resumed>) = 3 [pid 518] write(3, "1000", 4) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 518] close(3) = 0 [pid 518] symlink("/dev/binderfs", "./binderfs" [pid 516] <... openat resumed>) = 3 [pid 297] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 518] <... symlink resumed>) = 0 [pid 516] exit_group(0executing program [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 516] <... exit_group resumed>) = ? [pid 297] newfstatat(AT_FDCWD, "./52/binderfs", [pid 518] write(1, "executing program\n", 18) = 18 [pid 518] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 518] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 516] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./52/binderfs" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 518] <... mount resumed>) = 0 [pid 297] rmdir("./52" [pid 518] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 518] exit_group(0) = ? [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./53", 0777 [pid 518] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 519 attached [pid 299] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 519] set_robust_list(0x5555726b0660, 24 [pid 299] newfstatat(AT_FDCWD, "./54/binderfs2", [pid 519] <... set_robust_list resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 519] chdir("./53" [pid 299] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 519 [pid 519] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] openat(AT_FDCWD, "./54/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 519] <... prctl resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 519] setpgid(0, 0 [pid 299] newfstatat(4, "", [pid 519] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(4, [pid 298] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 519] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 519] write(3, "1000", 4 [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 519] <... write resumed>) = 4 [pid 300] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 519] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 519] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 519] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(3, "", [pid 299] rmdir("./54/binderfs2" [pid 519] <... symlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 519] write(1, "executing program\n", 18executing program [pid 300] getdents64(3, [pid 519] <... write resumed>) = 18 [pid 519] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./54/binderfs", [pid 298] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 519] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./53/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./54/binderfs" [pid 298] newfstatat(AT_FDCWD, "./55/binderfs2", [pid 519] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 519] <... mount resumed>) = 0 [pid 300] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./53/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./55/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 519] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./54" [pid 519] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./53/binderfs2") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(4, "", [pid 519] exit_group(0 [pid 300] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./53/binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] mkdir("./55", 0777 [pid 519] <... exit_group resumed>) = ? [pid 298] getdents64(4, [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./53") = 0 [pid 300] mkdir("./54", 0777 [pid 519] +++ exited with 0 +++ [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 520 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 520 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] close(4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 520] set_robust_list(0x5555726b0660, 24) = 0 [pid 520] chdir("./54" [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./55/binderfs2" [pid 520] <... chdir resumed>) = 0 [pid 520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 520] setpgid(0, 0) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [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"executing program ) = 0 [pid 520] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 521 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 521 [pid 298] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 521] set_robust_list(0x5555726b0660, 24 [pid 298] newfstatat(AT_FDCWD, "./55/binderfs", [pid 297] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 521] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 [pid 520] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(3, "", [pid 521] chdir("./55" [pid 520] <... mkdirat resumed>) = 0 [pid 298] unlink("./55/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 521] <... chdir resumed>) = 0 [pid 520] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 521] <... prctl resumed>) = 0 [pid 521] setpgid(0, 0 [pid 520] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 521] <... setpgid resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 520] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 521] <... openat resumed>) = 3 [pid 520] <... openat resumed>) = 3 [pid 298] close(3 [pid 521] write(3, "1000", 4 [pid 520] exit_group(0 [pid 297] <... umount2 resumed>) = 0 [pid 520] <... exit_group resumed>) = ? [pid 298] <... close resumed>) = 0 [pid 521] <... write resumed>) = 4 [pid 297] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./55" [pid 521] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 521] <... close resumed>) = 0 [pid 520] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./53/binderfs2", [pid 521] symlink("/dev/binderfs", "./binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] mkdir("./56", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...>executing program [pid 521] <... symlink resumed>) = 0 [pid 521] write(1, "executing program\n", 18) = 18 [pid 521] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./53/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 521] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 521] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./53/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 4 [pid 521] <... mount resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 522 attached [pid 297] getdents64(4, [pid 521] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 521] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 522] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 522 [pid 297] close(4 [pid 521] exit_group(0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./53/binderfs2" [pid 522] <... set_robust_list resumed>) = 0 [pid 521] <... exit_group resumed>) = ? [pid 522] chdir("./56" [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] unlink("./53/binderfs" [pid 300] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... unlink resumed>) = 0 [pid 522] <... chdir resumed>) = 0 [pid 521] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(3, "", [pid 297] getdents64(3, [pid 522] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 297] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... close resumed>) = 0 [pid 522] setpgid(0, 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 522] <... setpgid resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./53" [pid 522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 522] write(3, "1000", 4 [pid 299] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 522] <... write resumed>) = 4 [pid 522] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 522] <... close resumed>) = 0 [pid 522] symlink("/dev/binderfs", "./binderfs" [pid 299] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./54", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 522] <... symlink resumed>) = 0 [pid 522] write(1, "executing program\n", 18) = 18 [pid 297] <... mkdir resumed>) = 0 executing program [pid 300] newfstatat(AT_FDCWD, "./54/binderfs2", [pid 299] newfstatat(3, "", [pid 522] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 522] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 522] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./54/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 523 attached [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 523] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 523] <... set_robust_list resumed>) = 0 [pid 522] <... mount resumed>) = 0 [pid 300] getdents64(4, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 523 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 523] chdir("./54") = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] close(4 [pid 299] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 523] <... prctl resumed>) = 0 [pid 522] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 523] setpgid(0, 0 [pid 300] rmdir("./54/binderfs2" [pid 523] <... setpgid resumed>) = 0 [pid 522] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./55/binderfs2", [pid 523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 523] <... openat resumed>) = 3 [pid 522] exit_group(0 [pid 300] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./55/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 522] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 523] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./54/binderfs", [pid 299] newfstatat(4, "", [pid 523] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 523] close(3 [pid 300] unlink("./54/binderfs" [pid 299] getdents64(4, [pid 523] <... close resumed>) = 0 [pid 522] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 523] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] getdents64(3, [pid 299] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 299] close(4 [pid 523] write(1, "executing program\n", 18 [pid 300] close(3 [pid 299] <... close resumed>) = 0 [pid 523] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 299] rmdir("./55/binderfs2" [pid 298] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 523] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./54" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 523] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./55/binderfs", [pid 300] mkdir("./55", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 523] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 299] unlink("./55/binderfs" [pid 298] newfstatat(3, "", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 523] <... mount resumed>) = 0 [pid 298] getdents64(3, ./strace-static-x86_64: Process 524 attached [pid 523] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 523] <... openat resumed>) = 3 [pid 298] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 524] set_robust_list(0x5555726b0660, 24 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 524] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 524 [pid 299] close(3 [pid 524] chdir("./55" [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 523] exit_group(0 [pid 299] rmdir("./55" [pid 523] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 524] <... chdir resumed>) = 0 [pid 298] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] mkdir("./56", 0777 [pid 524] <... prctl resumed>) = 0 [pid 524] setpgid(0, 0 [pid 298] newfstatat(AT_FDCWD, "./56/binderfs2", [pid 524] <... setpgid resumed>) = 0 [pid 523] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 524] <... openat resumed>) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./56/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4./strace-static-x86_64: Process 525 attached ) = 0 [pid 525] set_robust_list(0x5555726b0660, 24 [pid 298] rmdir("./56/binderfs2" [pid 524] write(3, "1000", 4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 525 [pid 297] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 524] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 524] close(3 [pid 297] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 524] <... close resumed>) = 0 [pid 524] symlink("/dev/binderfs", "./binderfs" [pid 297] <... openat resumed>) = 3 [pid 525] <... set_robust_list resumed>) = 0 [pid 524] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 525] chdir("./56" [pid 524] write(1, "executing program\n", 18 [pid 298] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 525] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(AT_FDCWD, "./56/binderfs", [pid 525] <... prctl resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 525] setpgid(0, 0 [pid 524] <... write resumed>) = 18 [pid 298] unlink("./56/binderfs" [pid 297] getdents64(3, [pid 525] <... setpgid resumed>) = 0 [pid 524] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... unlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 525] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 525] write(3, "1000", 4) = 4 [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 525] close(3 [pid 298] rmdir("./56" [pid 525] <... close resumed>) = 0 [pid 524] <... mkdirat resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 525] symlink("/dev/binderfs", "./binderfs") = 0 [pid 524] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 525] write(1, "executing program\n", 18) = 18 [pid 298] mkdir("./57", 0777 [pid 525] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 298] <... mkdir resumed>) = 0 [pid 525] <... mkdirat resumed>) = 0 [pid 524] <... mount resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./54/binderfs2", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./54/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 524] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 525] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./54/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 524] <... openat resumed>) = 3 ./strace-static-x86_64: Process 526 attached [pid 524] exit_group(0 [pid 297] <... openat resumed>) = 4 [pid 524] <... exit_group resumed>) = ? [pid 297] newfstatat(4, "", [pid 526] set_robust_list(0x5555726b0660, 24 [pid 525] <... mount resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 526] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 526 [pid 526] chdir("./57" [pid 525] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 524] +++ exited with 0 +++ [pid 525] exit_group(0) = ? [pid 297] getdents64(4, [pid 526] <... chdir resumed>) = 0 [pid 526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 525] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 526] <... prctl resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(4, [pid 526] setpgid(0, 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 526] <... setpgid resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] close(4 [pid 526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./54/binderfs2" [pid 526] <... openat resumed>) = 3 [pid 526] write(3, "1000", 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 526] <... write resumed>) = 4 [pid 526] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 526] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 526] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./54/binderfs" [pid 526] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 526] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 299] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./54"executing program [pid 526] <... write resumed>) = 18 [pid 299] newfstatat(3, "", [pid 526] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 297] mkdir("./55", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 526] <... mkdirat resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 299] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 526] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 527 attached [pid 299] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./56/binderfs2", [pid 526] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 527] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 527] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 527] chdir("./55" [pid 526] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./56/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 527 [pid 527] <... chdir resumed>) = 0 [pid 526] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 527] <... prctl resumed>) = 0 [pid 526] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 527] setpgid(0, 0 [pid 300] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 527] <... setpgid resumed>) = 0 [pid 526] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 527] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 527] write(3, "1000", 4 [pid 299] <... close resumed>) = 0 [pid 527] <... write resumed>) = 4 [pid 299] rmdir("./56/binderfs2" [pid 527] close(3 [pid 526] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 527] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 527] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 527] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 527] <... write resumed>) = 18 [pid 299] newfstatat(AT_FDCWD, "./56/binderfs", [pid 527] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./56/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 527] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./55/binderfs2", [pid 299] <... unlink resumed>) = 0 [pid 527] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 527] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./55/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(3 [pid 527] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 527] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 299] rmdir("./56" [pid 527] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 527] <... exit_group resumed>) = ? [pid 527] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] mkdir("./57", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] close(4) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 528 attached [pid 300] rmdir("./55/binderfs2" [pid 298] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 528] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 528 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 528] <... set_robust_list resumed>) = 0 [pid 297] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 528] chdir("./57" [pid 300] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 528] <... chdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(3, "", [pid 300] newfstatat(AT_FDCWD, "./55/binderfs", [pid 528] <... prctl resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 528] setpgid(0, 0 [pid 297] getdents64(3, [pid 528] <... setpgid resumed>) = 0 [pid 300] unlink("./55/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./57/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./57/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 528] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 298] getdents64(4, [pid 528] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 528] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 528] close(3 [pid 300] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 528] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] close(4 [pid 300] rmdir("./55" [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./57/binderfs2" [pid 528] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./57/binderfs" [pid 528] <... symlink resumed>) = 0 [pid 300] mkdir("./56", 0777 [pid 528] write(1, "executing program\n", 18 [pid 297] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 528] <... write resumed>) = 18 [pid 298] getdents64(3, executing program [pid 297] newfstatat(AT_FDCWD, "./55/binderfs2", [pid 528] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./57" [pid 300] <... mkdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./55/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./58", 0777 [pid 528] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] openat(AT_FDCWD, "./55/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 529 attached [pid 297] <... openat resumed>) = 4 ./strace-static-x86_64: Process 530 attached [pid 297] newfstatat(4, "", [pid 528] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 529] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 530 [pid 529] <... set_robust_list resumed>) = 0 [pid 529] chdir("./56") = 0 [pid 529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 529] setpgid(0, 0 [pid 528] <... mount resumed>) = 0 [pid 297] getdents64(4, [pid 529] <... setpgid resumed>) = 0 [pid 530] set_robust_list(0x5555726b0660, 24 [pid 529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 529 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 530] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 530] chdir("./58" [pid 529] <... openat resumed>) = 3 [pid 297] close(4 [pid 530] <... chdir resumed>) = 0 [pid 529] write(3, "1000", 4 [pid 530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... close resumed>) = 0 [pid 528] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 530] <... prctl resumed>) = 0 [pid 297] rmdir("./55/binderfs2" [pid 529] <... write resumed>) = 4 [pid 529] close(3) = 0 [pid 529] symlink("/dev/binderfs", "./binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 530] setpgid(0, 0 [pid 529] <... symlink resumed>) = 0 [pid 528] <... openat resumed>) = 3 executing program [pid 530] <... setpgid resumed>) = 0 [pid 529] write(1, "executing program\n", 18 [pid 528] exit_group(0 [pid 297] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 529] <... write resumed>) = 18 [pid 530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 529] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 528] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 530] <... openat resumed>) = 3 [pid 529] <... mkdirat resumed>) = 0 [pid 529] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 530] write(3, "1000", 4 [pid 297] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 530] <... write resumed>) = 4 [pid 297] unlink("./55/binderfs" [pid 530] close(3) = 0 [pid 528] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... unlink resumed>) = 0 [pid 530] symlink("/dev/binderfs", "./binderfs" [pid 529] <... mount resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 529] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 530] <... symlink resumed>) = 0 [pid 297] getdents64(3, [pid 529] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 530] write(1, "executing program\n", 18executing program [pid 297] close(3 [pid 529] <... exit_group resumed>) = ? [pid 297] <... close resumed>) = 0 [pid 530] <... write resumed>) = 18 [pid 297] rmdir("./55" [pid 530] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 529] +++ exited with 0 +++ [pid 297] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] mkdir("./56", 0777 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 530] <... mkdirat resumed>) = 0 [pid 530] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555726b0650) = 531 [pid 530] <... mount resumed>) = 0 ./strace-static-x86_64: Process 531 attached [pid 531] set_robust_list(0x5555726b0660, 24 [pid 530] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 531] <... set_robust_list resumed>) = 0 [pid 531] chdir("./56" [pid 530] <... openat resumed>) = 3 [pid 531] <... chdir resumed>) = 0 [pid 531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 530] exit_group(0 [pid 531] setpgid(0, 0) = 0 [pid 531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 530] <... exit_group resumed>) = ? [pid 531] <... openat resumed>) = 3 [pid 531] write(3, "1000", 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 531] <... write resumed>) = 4 [pid 531] close(3 [pid 530] +++ exited with 0 +++ [pid 531] <... close resumed>) = 0 [pid 531] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 531] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 531] write(1, "executing program\n", 18) = 18 [pid 531] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... openat resumed>) = 3 [pid 531] <... mkdirat resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 531] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 531] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 531] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 531] exit_group(0 [pid 300] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 531] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./56/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 531] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./56/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=531, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 300] <... openat resumed>) = 4 [pid 298] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 300] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 300] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./57/binderfs2", [pid 300] rmdir("./56/binderfs2" [pid 298] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./57/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 300] newfstatat(AT_FDCWD, "./56/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./58/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./58/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./58/binderfs2" [pid 299] getdents64(4, [pid 300] unlink("./56/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] getdents64(4, [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 298] newfstatat(AT_FDCWD, "./58/binderfs", [pid 300] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./56" [pid 299] rmdir("./57/binderfs2" [pid 298] unlink("./58/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./58" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./59", 0777 [pid 300] mkdir("./57", 0777 [pid 299] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./57/binderfs", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... mkdir resumed>) = 0 [pid 299] unlink("./57/binderfs"./strace-static-x86_64: Process 532 attached ) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./57" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 532 ./strace-static-x86_64: Process 533 attached [pid 532] set_robust_list(0x5555726b0660, 24 [pid 299] <... rmdir resumed>) = 0 [pid 533] set_robust_list(0x5555726b0660, 24 [pid 299] mkdir("./58", 0777 [pid 532] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 533 [pid 533] <... set_robust_list resumed>) = 0 [pid 532] chdir("./57" [pid 299] <... mkdir resumed>) = 0 [pid 532] <... chdir resumed>) = 0 [pid 532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 533] chdir("./59" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 532] <... prctl resumed>) = 0 [pid 533] <... chdir resumed>) = 0 [pid 533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 532] setpgid(0, 0./strace-static-x86_64: Process 534 attached [pid 533] <... prctl resumed>) = 0 [pid 532] <... setpgid resumed>) = 0 [pid 534] set_robust_list(0x5555726b0660, 24 [pid 533] setpgid(0, 0 [pid 532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 534 [pid 534] <... set_robust_list resumed>) = 0 [pid 533] <... setpgid resumed>) = 0 [pid 297] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 534] chdir("./58" [pid 533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 532] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 534] <... chdir resumed>) = 0 [pid 532] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 533] <... openat resumed>) = 3 [pid 532] <... write resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 532] close(3 [pid 534] <... prctl resumed>) = 0 [pid 533] write(3, "1000", 4 [pid 532] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 534] setpgid(0, 0 [pid 533] <... write resumed>) = 4 [pid 532] symlink("/dev/binderfs", "./binderfs"executing program [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 534] <... setpgid resumed>) = 0 [pid 533] close(3 [pid 532] <... symlink resumed>) = 0 [pid 297] getdents64(3, [pid 534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 533] <... close resumed>) = 0 [pid 532] write(1, "executing program\n", 18 [pid 533] symlink("/dev/binderfs", "./binderfs" [pid 532] <... write resumed>) = 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 534] <... openat resumed>) = 3 [pid 533] <... symlink resumed>) = 0 [pid 532] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 534] write(3, "1000", 4 [pid 533] write(1, "executing program\n", 18 [pid 532] <... mkdirat resumed>) = 0 executing program [pid 297] <... umount2 resumed>) = 0 [pid 534] <... write resumed>) = 4 [pid 533] <... write resumed>) = 18 [pid 532] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 533] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 534] close(3 [pid 297] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 534] <... close resumed>) = 0 [pid 534] symlink("/dev/binderfs", "./binderfs" [pid 533] <... mkdirat resumed>) = 0 [pid 532] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 534] <... symlink resumed>) = 0 executing program [pid 534] write(1, "executing program\n", 18 [pid 533] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 532] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(AT_FDCWD, "./56/binderfs2", [pid 534] <... write resumed>) = 18 [pid 532] <... openat resumed>) = 3 [pid 533] <... mount resumed>) = 0 [pid 532] exit_group(0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 534] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 533] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 532] <... exit_group resumed>) = ? [pid 534] <... mkdirat resumed>) = 0 [pid 533] <... openat resumed>) = 3 [pid 297] umount2("./56/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 534] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 532] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./56/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 534] <... mount resumed>) = 0 [pid 533] exit_group(0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 533] <... exit_group resumed>) = ? [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./56/binderfs2") = 0 [pid 297] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 533] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 534] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 534] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./56/binderfs", [pid 534] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] unlink("./56/binderfs" [pid 534] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 298] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] rmdir("./56" [pid 298] newfstatat(3, "", [pid 534] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./57/binderfs2", [pid 297] mkdir("./57", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./57/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 535 attached [pid 300] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./59/binderfs2", [pid 535] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 535 [pid 535] <... set_robust_list resumed>) = 0 [pid 300] close(4 [pid 298] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 535] chdir("./57" [pid 300] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 535] <... chdir resumed>) = 0 [pid 300] rmdir("./57/binderfs2" [pid 298] openat(AT_FDCWD, "./59/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... rmdir resumed>) = 0 [pid 535] <... prctl resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 535] setpgid(0, 0) = 0 [pid 535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 535] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./57/binderfs", [pid 535] write(3, "1000", 4) = 4 [pid 535] close(3) = 0 [pid 535] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 535] <... symlink resumed>) = 0 [pid 300] unlink("./57/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 535] write(1, "executing program\n", 18 [pid 300] <... unlink resumed>) = 0 [pid 298] getdents64(4, [pid 535] <... write resumed>) = 18 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] close(4 [pid 300] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 535] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] rmdir("./59/binderfs2" [pid 300] rmdir("./57" [pid 298] <... rmdir resumed>) = 0 [pid 535] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./59/binderfs", [pid 300] mkdir("./58", 0777 [pid 535] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] unlink("./59/binderfs" [pid 535] <... mount resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 535] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] rmdir("./59"./strace-static-x86_64: Process 536 attached [pid 299] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 536] set_robust_list(0x5555726b0660, 24 [pid 535] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 536] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 536 [pid 299] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 536] chdir("./58" [pid 535] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 3 [pid 298] mkdir("./60", 0777) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 535] +++ exited with 0 +++ [pid 299] newfstatat(3, "", [pid 536] <... chdir resumed>) = 0 [pid 536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 536] <... prctl resumed>) = 0 [pid 299] getdents64(3, [pid 536] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 536] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 537 attached [pid 299] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 537] set_robust_list(0x5555726b0660, 24 [pid 536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 537] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 537 [pid 537] chdir("./60") = 0 [pid 299] <... umount2 resumed>) = 0 [pid 537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 537] setpgid(0, 0) = 0 [pid 537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 536] <... openat resumed>) = 3 [pid 299] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 536] write(3, "1000", 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 536] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 536] close(3 [pid 537] <... openat resumed>) = 3 [pid 536] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./58/binderfs2", [pid 537] write(3, "1000", 4 [pid 536] symlink("/dev/binderfs", "./binderfs" [pid 537] <... write resumed>) = 4 [pid 537] close(3) = 0 [pid 537] symlink("/dev/binderfs", "./binderfs") = 0 [pid 536] <... symlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 537] write(1, "executing program\n", 18executing program ) = 18 [pid 537] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 536] write(1, "executing program\n", 18executing program [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 536] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 536] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] openat(AT_FDCWD, "./58/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 537] <... mkdirat resumed>) = 0 [pid 536] <... mkdirat resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(3, "", [pid 537] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 536] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 299] getdents64(4, [pid 537] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 537] <... openat resumed>) = 3 [pid 537] exit_group(0) = ? [pid 536] <... mount resumed>) = 0 [pid 299] getdents64(4, [pid 297] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 537] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 536] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 536] exit_group(0 [pid 299] <... close resumed>) = 0 [pid 297] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./58/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 536] <... exit_group resumed>) = ? [pid 536] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./57/binderfs2", [pid 299] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./57/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] unlink("./58/binderfs" [pid 297] openat(AT_FDCWD, "./57/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 300] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 300] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] rmdir("./58" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] mkdir("./59", 0777 [pid 298] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./57/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./58/binderfs2", [pid 297] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 538 attached [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 538 [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 538] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 538] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./57/binderfs", [pid 538] chdir("./59" [pid 300] openat(AT_FDCWD, "./58/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 538] <... chdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] unlink("./57/binderfs" [pid 538] <... prctl resumed>) = 0 [pid 538] setpgid(0, 0 [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 538] <... setpgid resumed>) = 0 [pid 300] newfstatat(4, "", [pid 538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 300] getdents64(4, [pid 298] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 538] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 538] write(3, "1000", 4 [pid 300] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./60/binderfs2", [pid 538] <... write resumed>) = 4 [pid 297] close(3 [pid 538] close(3) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 538] symlink("/dev/binderfs", "./binderfs" [pid 300] close(4 [pid 298] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 538] <... symlink resumed>) = 0 [pid 300] <... close resumed>) = 0 executing program [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./57" [pid 538] write(1, "executing program\n", 18 [pid 300] rmdir("./58/binderfs2" [pid 298] openat(AT_FDCWD, "./60/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 538] <... write resumed>) = 18 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 538] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(4, "", [pid 300] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./58", 0777 [pid 538] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./58/binderfs", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 538] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 300] unlink("./58/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 538] <... mount resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] close(4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 538] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 298] rmdir("./60/binderfs2"./strace-static-x86_64: Process 539 attached [pid 538] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 539] set_robust_list(0x5555726b0660, 24 [pid 538] exit_group(0 [pid 300] close(3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 539 [pid 539] <... set_robust_list resumed>) = 0 [pid 538] <... exit_group resumed>) = ? [pid 300] <... close resumed>) = 0 [pid 298] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./58" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 538] +++ exited with 0 +++ [pid 300] mkdir("./59", 0777 [pid 298] unlink("./60/binderfs" [pid 539] chdir("./58") = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 539] setpgid(0, 0 [pid 299] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 539] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 540 attached [pid 539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 299] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./60" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 540 [pid 539] <... openat resumed>) = 3 [pid 540] set_robust_list(0x5555726b0660, 24 [pid 299] newfstatat(3, "", [pid 539] write(3, "1000", 4 [pid 540] <... set_robust_list resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 539] <... write resumed>) = 4 [pid 299] getdents64(3, [pid 539] close(3 [pid 540] chdir("./59" [pid 539] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 539] symlink("/dev/binderfs", "./binderfs"executing program [pid 298] mkdir("./61", 0777 [pid 540] <... chdir resumed>) = 0 [pid 539] <... symlink resumed>) = 0 [pid 299] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 539] write(1, "executing program\n", 18 [pid 540] <... prctl resumed>) = 0 [pid 539] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 540] setpgid(0, 0 [pid 539] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 540] <... setpgid resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 539] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 541 attached [pid 540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 539] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./59/binderfs2", [pid 540] <... openat resumed>) = 3 [pid 540] write(3, "1000", 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 540] <... write resumed>) = 4 [pid 541] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 540] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 540] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./59/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 541] <... set_robust_list resumed>) = 0 [pid 540] symlink("/dev/binderfs", "./binderfs" [pid 299] <... openat resumed>) = 4 [pid 540] <... symlink resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 541 [pid 541] chdir("./61"executing program [pid 540] write(1, "executing program\n", 18 [pid 539] <... mount resumed>) = 0 [pid 299] newfstatat(4, "", [pid 541] <... chdir resumed>) = 0 [pid 540] <... write resumed>) = 18 [pid 539] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 540] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 539] <... openat resumed>) = 3 [pid 541] <... prctl resumed>) = 0 [pid 540] <... mkdirat resumed>) = 0 [pid 299] getdents64(4, [pid 539] exit_group(0 [pid 541] setpgid(0, 0) = 0 [pid 540] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 539] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 539] +++ exited with 0 +++ [pid 299] close(4) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] rmdir("./59/binderfs2" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 541] write(3, "1000", 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 541] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 541] close(3) = 0 [pid 540] <... mount resumed>) = 0 [pid 299] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 541] symlink("/dev/binderfs", "./binderfs" [pid 540] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 541] <... symlink resumed>) = 0 [pid 541] write(1, "executing program\n", 18executing program [pid 540] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./59/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 541] <... write resumed>) = 18 [pid 540] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 540] <... exit_group resumed>) = ? [pid 297] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] unlink("./59/binderfs" [pid 541] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 540] +++ exited with 0 +++ [pid 541] <... mkdirat resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 297] newfstatat(3, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] close(3 [pid 541] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, [pid 541] <... mount resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./59" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] mkdir("./60", 0777 [pid 541] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 541] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 541] exit_group(0 [pid 300] getdents64(3, [pid 297] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 541] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 542 attached [pid 541] +++ exited with 0 +++ [pid 300] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./58/binderfs2", [pid 542] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 542 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=541, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 542] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 542] chdir("./60" [pid 300] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./58/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 542] <... chdir resumed>) = 0 [pid 542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 542] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./59/binderfs2", [pid 542] setpgid(0, 0 [pid 297] openat(AT_FDCWD, "./58/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 542] <... setpgid resumed>) = 0 [pid 542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 542] <... openat resumed>) = 3 [pid 300] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 542] write(3, "1000", 4 [pid 297] newfstatat(4, "", [pid 542] <... write resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 542] close(3 [pid 297] getdents64(4, [pid 542] <... close resumed>) = 0 [pid 542] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 542] <... symlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./59/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 542] write(1, "executing program\n", 18 [pid 300] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 542] <... write resumed>) = 18 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 542] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(4, [pid 297] close(4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 542] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 542] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(4) = 0 [pid 297] rmdir("./58/binderfs2" [pid 300] rmdir("./59/binderfs2" [pid 542] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 542] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... rmdir resumed>) = 0 [pid 542] <... openat resumed>) = 3 [pid 297] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 542] exit_group(0 [pid 297] newfstatat(AT_FDCWD, "./58/binderfs", [pid 542] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./58/binderfs" [pid 300] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] unlink("./59/binderfs" [pid 542] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 300] close(3) = 0 [pid 297] rmdir("./58" [pid 300] rmdir("./59") = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] mkdir("./60", 0777 [pid 297] mkdir("./59", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 543 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 543 ./strace-static-x86_64: Process 544 attached [pid 543] set_robust_list(0x5555726b0660, 24 [pid 299] <... restart_syscall resumed>) = 0 [pid 543] <... set_robust_list resumed>) = 0 [pid 544] set_robust_list(0x5555726b0660, 24) = 0 [pid 543] chdir("./60" [pid 544] chdir("./59" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 544 [pid 544] <... chdir resumed>) = 0 [pid 543] <... chdir resumed>) = 0 [pid 298] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 543] <... prctl resumed>) = 0 [pid 298] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 543] setpgid(0, 0 [pid 299] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 544] <... prctl resumed>) = 0 [pid 543] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 544] setpgid(0, 0 [pid 543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 544] <... setpgid resumed>) = 0 [pid 543] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 544] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 543] write(3, "1000", 4 [pid 298] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 544] write(3, "1000", 4 [pid 543] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = 0 [pid 543] close(3) = 0 [pid 543] symlink("/dev/binderfs", "./binderfs" [pid 544] <... write resumed>) = 4 executing program [pid 543] <... symlink resumed>) = 0 [pid 299] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 544] close(3 [pid 543] write(1, "executing program\n", 18 [pid 544] <... close resumed>) = 0 [pid 298] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 544] symlink("/dev/binderfs", "./binderfs" [pid 543] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 543] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./61/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 544] <... symlink resumed>) = 0 [pid 543] <... mkdirat resumed>) = 0 [pid 299] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 544] write(1, "executing program\n", 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./61/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 543] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 4 [pid 544] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 544] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 543] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./60/binderfs2", [pid 298] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./60/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(4, "", [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 544] <... mkdirat resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 544] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 543] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./61/binderfs2" [pid 543] <... openat resumed>) = 3 [pid 543] exit_group(0 [pid 544] <... mount resumed>) = 0 [pid 299] getdents64(4, [pid 543] <... exit_group resumed>) = ? [pid 544] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... rmdir resumed>) = 0 [pid 544] <... openat resumed>) = 3 [pid 543] +++ exited with 0 +++ [pid 299] getdents64(4, [pid 298] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./61/binderfs", [pid 544] exit_group(0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... close resumed>) = 0 [pid 544] <... exit_group resumed>) = ? [pid 299] rmdir("./60/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./61/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 544] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./60/binderfs", [pid 298] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] unlink("./60/binderfs" [pid 298] rmdir("./61" [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./60" [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./62", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./61", 0777) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 545 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 545 [pid 545] set_robust_list(0x5555726b0660, 24) = 0 [pid 545] chdir("./61") = 0 [pid 545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 545] setpgid(0, 0) = 0 [pid 545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 546 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 546 [pid 545] <... openat resumed>) = 3 [pid 545] write(3, "1000", 4 [pid 546] set_robust_list(0x5555726b0660, 24 [pid 545] <... write resumed>) = 4 [pid 546] <... set_robust_list resumed>) = 0 [pid 545] close(3 [pid 546] chdir("./62" [pid 545] <... close resumed>) = 0 [pid 545] symlink("/dev/binderfs", "./binderfs" [pid 546] <... chdir resumed>) = 0 [pid 545] <... symlink resumed>) = 0 executing program [pid 546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 545] write(1, "executing program\n", 18 [pid 546] <... prctl resumed>) = 0 [pid 545] <... write resumed>) = 18 [pid 546] setpgid(0, 0 [pid 545] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 546] <... setpgid resumed>) = 0 [pid 545] <... mkdirat resumed>) = 0 [pid 546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 545] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 546] <... openat resumed>) = 3 [pid 546] write(3, "1000", 4) = 4 [pid 546] close(3 [pid 545] <... mount resumed>) = 0 [pid 546] <... close resumed>) = 0 [pid 546] symlink("/dev/binderfs", "./binderfs" [pid 545] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 546] <... symlink resumed>) = 0 executing program [pid 546] write(1, "executing program\n", 18) = 18 [pid 546] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 545] <... openat resumed>) = 3 [pid 545] exit_group(0 [pid 297] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 545] <... exit_group resumed>) = ? [pid 546] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 546] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 545] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 546] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 546] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 546] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./60/binderfs2", [pid 299] <... restart_syscall resumed>) = 0 [pid 546] exit_group(0 [pid 297] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 546] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./60/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 546] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 297] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./59/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] getdents64(4, [pid 297] umount2("./59/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] openat(AT_FDCWD, "./59/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] rmdir("./60/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./61/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 300] newfstatat(AT_FDCWD, "./60/binderfs", [pid 299] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./60/binderfs" [pid 299] openat(AT_FDCWD, "./61/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./59/binderfs2" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./60" [pid 299] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] close(4 [pid 297] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./61/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./59/binderfs", [pid 300] mkdir("./61", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] unlink("./59/binderfs") = 0 [pid 297] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./59" [pid 299] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./61/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./60", 0777./strace-static-x86_64: Process 547 attached [pid 299] unlink("./61/binderfs" [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 547 [pid 299] <... unlink resumed>) = 0 [pid 547] set_robust_list(0x5555726b0660, 24 [pid 297] <... mkdir resumed>) = 0 [pid 547] <... set_robust_list resumed>) = 0 [pid 299] getdents64(3, [pid 547] chdir("./61" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] close(3 [pid 547] <... chdir resumed>) = 0 [pid 547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 547] setpgid(0, 0) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./61" [pid 547] <... openat resumed>) = 3 [pid 547] write(3, "1000", 4 [pid 298] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 548 attached [pid 547] <... write resumed>) = 4 [pid 548] set_robust_list(0x5555726b0660, 24) = 0 [pid 548] chdir("./60" [pid 547] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 548] <... chdir resumed>) = 0 [pid 547] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 547] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 548 [pid 299] mkdir("./62", 0777 [pid 548] <... prctl resumed>) = 0 [pid 547] <... symlink resumed>) = 0 [pid 298] getdents64(3, [pid 548] setpgid(0, 0 [pid 547] write(1, "executing program\n", 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 548] <... setpgid resumed>) = 0 [pid 547] <... write resumed>) = 18 [pid 548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 547] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 548] <... openat resumed>) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 548] write(3, "1000", 4 [pid 547] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 548] <... write resumed>) = 4 [pid 548] close(3) = 0 [pid 548] symlink("/dev/binderfs", "./binderfs") = 0 [pid 547] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 549 attached [pid 548] write(1, "executing program\n", 18 [pid 298] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 548] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 549] set_robust_list(0x5555726b0660, 24 [pid 548] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 547] <... mount resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 549 [pid 549] <... set_robust_list resumed>) = 0 [pid 547] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(AT_FDCWD, "./62/binderfs2", [pid 549] chdir("./62" [pid 548] <... mkdirat resumed>) = 0 [pid 547] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 549] <... chdir resumed>) = 0 [pid 548] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 547] exit_group(0 [pid 298] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 547] <... exit_group resumed>) = ? [pid 549] <... prctl resumed>) = 0 [pid 548] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 549] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "./62/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 547] +++ exited with 0 +++ [pid 548] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(4, "", [pid 549] write(3, "1000", 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 549] <... write resumed>) = 4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(4, [pid 549] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 549] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 549] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 549] <... symlink resumed>) = 0 [pid 298] close(4) = 0 [pid 548] <... openat resumed>) = 3 [pid 298] rmdir("./62/binderfs2"executing program [pid 548] exit_group(0 [pid 549] write(1, "executing program\n", 18 [pid 548] <... exit_group resumed>) = ? [pid 549] <... write resumed>) = 18 [pid 298] <... rmdir resumed>) = 0 [pid 549] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 548] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(AT_FDCWD, "./62/binderfs", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 549] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./62/binderfs" [pid 300] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... unlink resumed>) = 0 [pid 549] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 549] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 549] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(3 [pid 300] getdents64(3, [pid 549] <... exit_group resumed>) = ? [pid 298] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] rmdir("./62" [pid 297] <... restart_syscall resumed>) = 0 [pid 549] +++ exited with 0 +++ [pid 300] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] mkdir("./63", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 300] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(AT_FDCWD, "./61/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./61/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, ./strace-static-x86_64: Process 550 attached [pid 299] <... restart_syscall resumed>) = 0 [pid 550] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(4, "", [pid 297] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 550] <... set_robust_list resumed>) = 0 [pid 299] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 550 [pid 550] chdir("./63" [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 550] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... openat resumed>) = 3 [pid 550] <... prctl resumed>) = 0 [pid 299] newfstatat(3, "", [pid 550] setpgid(0, 0 [pid 300] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 550] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./61/binderfs2" [pid 299] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] newfstatat(AT_FDCWD, "./60/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./60/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 550] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 550] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./61/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./60/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 550] <... write resumed>) = 4 [pid 300] unlink("./61/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 550] close(3 [pid 300] <... unlink resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 300] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 297] close(4 [pid 300] rmdir("./61" [pid 297] <... close resumed>) = 0 [pid 550] <... close resumed>) = 0 [pid 299] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./60/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 550] symlink("/dev/binderfs", "./binderfs" [pid 300] mkdir("./62", 0777 [pid 550] <... symlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./62/binderfs2", [pid 297] <... rmdir resumed>) = 0 executing program [pid 550] write(1, "executing program\n", 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 550] <... write resumed>) = 18 [pid 299] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 550] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] openat(AT_FDCWD, "./62/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 551 attached ) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 297] newfstatat(AT_FDCWD, "./60/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 297] unlink("./60/binderfs" [pid 551] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 551 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 551] <... set_robust_list resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 551] chdir("./62") = 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] write(1, "executing program\n", 18) = 18 executing program [pid 551] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 550] <... mkdirat resumed>) = 0 [pid 299] getdents64(4, [pid 297] getdents64(3, [pid 551] <... mkdirat resumed>) = 0 [pid 550] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 551] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] close(4 [pid 297] close(3 [pid 551] <... mount resumed>) = 0 [pid 550] <... mount resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] rmdir("./62/binderfs2" [pid 297] rmdir("./60" [pid 551] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 551] exit_group(0) = ? [pid 299] <... rmdir resumed>) = 0 [pid 297] mkdir("./61", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 550] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 551] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 550] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./62/binderfs", ./strace-static-x86_64: Process 552 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 552 [pid 552] set_robust_list(0x5555726b0660, 24 [pid 299] unlink("./62/binderfs") = 0 [pid 552] <... set_robust_list resumed>) = 0 [pid 550] exit_group(0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./62" [pid 552] chdir("./61" [pid 550] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./63", 0777 [pid 550] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 552] <... chdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 552] <... prctl resumed>) = 0 [pid 552] setpgid(0, 0./strace-static-x86_64: Process 553 attached ) = 0 [pid 553] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 553 [pid 553] <... set_robust_list resumed>) = 0 [pid 552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 553] chdir("./63") = 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 552] <... openat resumed>) = 3 [pid 553] write(3, "1000", 4 [pid 552] write(3, "1000", 4 [pid 553] <... write resumed>) = 4 [pid 552] <... write resumed>) = 4 [pid 553] close(3 [pid 552] close(3 [pid 553] <... close resumed>) = 0 [pid 552] <... close resumed>) = 0 [pid 553] symlink("/dev/binderfs", "./binderfs" executing program [pid 552] symlink("/dev/binderfs", "./binderfs" [pid 553] <... symlink resumed>) = 0 [pid 553] write(1, "executing program\n", 18) = 18 [pid 552] <... symlink resumed>) = 0 [pid 553] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 552] write(1, "executing program\n", 18 [pid 553] <... mkdirat resumed>) = 0 [pid 552] <... write resumed>) = 18 [pid 553] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 552] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 553] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 553] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 552] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 553] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 552] <... mount resumed>) = 0 [pid 553] exit_group(0 [pid 552] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 553] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./62/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./62/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 553] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./62/binderfs2" [pid 552] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 552] exit_group(0) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./62/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./62" [pid 552] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./63", 0777 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... mkdir resumed>) = 0 [pid 298] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 554 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 554 [pid 298] <... openat resumed>) = 3 [pid 297] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 554] set_robust_list(0x5555726b0660, 24 [pid 298] getdents64(3, [pid 297] <... openat resumed>) = 3 [pid 554] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(3, "", [pid 554] chdir("./63" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 554] <... chdir resumed>) = 0 [pid 554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 554] <... prctl resumed>) = 0 [pid 299] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./61/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./61/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 554] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 554] <... setpgid resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] openat(AT_FDCWD, "./61/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 554] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./63/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 554] write(3, "1000", 4 [pid 299] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 554] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 554] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 554] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 298] openat(AT_FDCWD, "./63/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 554] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... openat resumed>) = 4 [pid 554] <... symlink resumed>) = 0 [pid 299] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", executing program [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 554] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] close(4 [pid 554] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 554] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./61/binderfs2" [pid 554] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 554] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./63/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(4 [pid 297] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./61/binderfs", [pid 554] <... mount resumed>) = 0 [pid 299] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 554] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./63/binderfs2" [pid 554] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] unlink("./61/binderfs" [pid 554] exit_group(0 [pid 299] openat(AT_FDCWD, "./63/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 554] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(AT_FDCWD, "./63/binderfs", [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 554] +++ exited with 0 +++ [pid 299] newfstatat(4, "", [pid 297] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] getdents64(4, [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] unlink("./63/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./61" [pid 299] getdents64(4, [pid 298] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./63/binderfs2" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 297] mkdir("./62", 0777 [pid 300] newfstatat(3, "", [pid 298] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./63" [pid 297] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./63/binderfs", [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./64", 0777./strace-static-x86_64: Process 555 attached [pid 300] <... umount2 resumed>) = 0 [pid 299] unlink("./63/binderfs" [pid 555] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 555 [pid 555] <... set_robust_list resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 555] chdir("./62") = 0 [pid 299] <... unlink resumed>) = 0 [pid 555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 555] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 555] <... setpgid resumed>) = 0 [pid 299] close(3 [pid 555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 556 attached [pid 555] <... openat resumed>) = 3 [pid 555] write(3, "1000", 4 [pid 556] set_robust_list(0x5555726b0660, 24 [pid 555] <... write resumed>) = 4 [pid 555] close(3 [pid 300] newfstatat(AT_FDCWD, "./63/binderfs2", [pid 299] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./63" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 556 [pid 300] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 556] <... set_robust_list resumed>) = 0 [pid 555] <... close resumed>) = 0 [pid 556] chdir("./64" [pid 555] symlink("/dev/binderfs", "./binderfs" [pid 556] <... chdir resumed>) = 0 [pid 555] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 555] write(1, "executing program\n", 18 executing program [pid 300] openat(AT_FDCWD, "./63/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 556] <... prctl resumed>) = 0 [pid 555] <... write resumed>) = 18 [pid 556] setpgid(0, 0 [pid 555] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 556] <... setpgid resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] mkdir("./64", 0777 [pid 556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 555] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 556] <... openat resumed>) = 3 [pid 555] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, [pid 556] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 556] <... write resumed>) = 4 [pid 300] getdents64(4, [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 556] close(3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 556] <... close resumed>) = 0 [pid 300] close(4 [pid 556] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 557 attached [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./63/binderfs2") = 0 [pid 557] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 557] chdir("./64" [pid 555] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 557 [pid 556] <... symlink resumed>) = 0 [pid 557] <... chdir resumed>) = 0 executing program [pid 300] newfstatat(AT_FDCWD, "./63/binderfs", [pid 556] write(1, "executing program\n", 18 [pid 557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 556] <... write resumed>) = 18 [pid 555] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 557] <... prctl resumed>) = 0 [pid 556] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] unlink("./63/binderfs" [pid 557] setpgid(0, 0 [pid 555] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 557] <... setpgid resumed>) = 0 [pid 557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 556] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, [pid 557] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 555] exit_group(0 [pid 300] rmdir("./63" [pid 555] <... exit_group resumed>) = ? [pid 557] write(3, "1000", 4 [pid 300] <... rmdir resumed>) = 0 [pid 557] <... write resumed>) = 4 [pid 557] close(3) = 0 [pid 557] symlink("/dev/binderfs", "./binderfs" [pid 555] +++ exited with 0 +++ [pid 300] mkdir("./64", 0777 [pid 556] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 557] <... symlink resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 557] write(1, "executing program\n", 18) = 18 [pid 557] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 556] <... mount resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 557] <... mkdirat resumed>) = 0 [pid 556] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 557] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 556] <... openat resumed>) = 3 [pid 557] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 557] exit_group(0) = ? [pid 297] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 558 attached [pid 556] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 558 [pid 556] <... exit_group resumed>) = ? [pid 297] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 557] +++ exited with 0 +++ [pid 558] set_robust_list(0x5555726b0660, 24 [pid 556] +++ exited with 0 +++ [pid 297] <... openat resumed>) = 3 [pid 558] <... set_robust_list resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 558] chdir("./64" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(3, "", [pid 558] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 558] <... prctl resumed>) = 0 [pid 297] getdents64(3, [pid 558] setpgid(0, 0) = 0 [pid 298] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 558] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 558] write(3, "1000", 4 [pid 298] newfstatat(3, "", [pid 558] <... write resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 558] close(3 [pid 298] getdents64(3, [pid 558] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 558] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 558] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./62/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 558] write(1, "executing program\n", 18executing program ) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./62/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 558] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./62/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 297] newfstatat(4, "", [pid 558] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./64/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 558] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./64/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 299] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./64/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./62/binderfs2" [pid 558] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./64/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 558] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 558] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 558] exit_group(0 [pid 299] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./62/binderfs", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 558] <... exit_group resumed>) = ? [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 297] unlink("./62/binderfs" [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./64/binderfs2" [pid 297] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] rmdir("./64/binderfs2" [pid 297] getdents64(3, [pid 298] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./64/binderfs", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 298] unlink("./64/binderfs" [pid 299] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./62" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 558] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] close(3) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] rmdir("./64" [pid 299] newfstatat(AT_FDCWD, "./64/binderfs", [pid 297] mkdir("./63", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] unlink("./64/binderfs" [pid 298] mkdir("./65", 0777 [pid 299] <... unlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 559 attached [pid 299] close(3./strace-static-x86_64: Process 560 attached ) = 0 [pid 560] set_robust_list(0x5555726b0660, 24 [pid 299] rmdir("./64" [pid 559] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 559 [pid 559] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 560 [pid 560] <... set_robust_list resumed>) = 0 [pid 559] chdir("./65" [pid 299] mkdir("./65", 0777 [pid 560] chdir("./63" [pid 559] <... chdir resumed>) = 0 [pid 559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 560] <... chdir resumed>) = 0 [pid 559] <... prctl resumed>) = 0 [pid 560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... mkdir resumed>) = 0 [pid 560] <... prctl resumed>) = 0 [pid 560] setpgid(0, 0) = 0 [pid 559] setpgid(0, 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 559] <... setpgid resumed>) = 0 [pid 560] <... openat resumed>) = 3 ./strace-static-x86_64: Process 561 attached [pid 560] write(3, "1000", 4 [pid 561] set_robust_list(0x5555726b0660, 24 [pid 560] <... write resumed>) = 4 [pid 559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 561] <... set_robust_list resumed>) = 0 [pid 560] close(3 [pid 561] chdir("./65" [pid 560] <... close resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 561 [pid 559] <... openat resumed>) = 3 [pid 561] <... chdir resumed>) = 0 [pid 559] write(3, "1000", 4 [pid 561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 559] <... write resumed>) = 4 [pid 561] <... prctl resumed>) = 0 [pid 560] symlink("/dev/binderfs", "./binderfs" [pid 561] setpgid(0, 0 [pid 559] close(3) = 0 [pid 561] <... setpgid resumed>) = 0 [pid 560] <... symlink resumed>) = 0 [pid 559] symlink("/dev/binderfs", "./binderfs" executing program [pid 561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 560] write(1, "executing program\n", 18) = 18 [pid 559] <... symlink resumed>) = 0 [pid 561] <... openat resumed>) = 3 [pid 560] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 561] write(3, "1000", 4executing program ) = 4 [pid 559] write(1, "executing program\n", 18 [pid 561] close(3 [pid 559] <... write resumed>) = 18 [pid 561] <... close resumed>) = 0 [pid 559] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 561] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 560] <... mkdirat resumed>) = 0 [pid 561] write(1, "executing program\n", 18) = 18 [pid 561] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 559] <... mkdirat resumed>) = 0 [pid 560] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 559] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 561] <... mkdirat resumed>) = 0 [pid 561] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... restart_syscall resumed>) = 0 [pid 561] <... mount resumed>) = 0 [pid 560] <... mount resumed>) = 0 [pid 300] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 561] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 560] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 559] <... mount resumed>) = 0 [pid 561] <... openat resumed>) = 3 [pid 559] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 561] exit_group(0 [pid 560] <... openat resumed>) = 3 [pid 559] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 561] <... exit_group resumed>) = ? [pid 559] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 561] +++ exited with 0 +++ [pid 560] exit_group(0) = ? [pid 559] <... exit_group resumed>) = ? [pid 300] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 560] +++ exited with 0 +++ [pid 300] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./64/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./64/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 559] +++ exited with 0 +++ [pid 300] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=559, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(4) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./64/binderfs2" [pid 299] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(3, "", [pid 300] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./64/binderfs", [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./64/binderfs") = 0 [pid 299] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./65/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(3, [pid 299] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./64" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./63/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./65/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./63/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./65", 0777 [pid 299] newfstatat(4, "", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./63/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 297] getdents64(4, ./strace-static-x86_64: Process 562 attached [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 562] set_robust_list(0x5555726b0660, 24 [pid 297] close(4 [pid 562] <... set_robust_list resumed>) = 0 [pid 299] rmdir("./65/binderfs2" [pid 297] <... close resumed>) = 0 [pid 562] chdir("./65" [pid 297] rmdir("./63/binderfs2" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 562 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 562] <... chdir resumed>) = 0 [pid 297] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 562] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 562] <... setpgid resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./65/binderfs", [pid 298] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./63/binderfs", [pid 562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./65/binderfs" [pid 298] <... openat resumed>) = 3 [pid 562] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 562] write(3, "1000", 4 [pid 297] unlink("./63/binderfs" [pid 562] <... write resumed>) = 4 [pid 299] getdents64(3, [pid 298] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... close resumed>) = 0 [pid 562] close(3 [pid 297] getdents64(3, [pid 562] <... close resumed>) = 0 [pid 299] rmdir("./65" [pid 298] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 562] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 562] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] mkdir("./66", 0777 [pid 297] rmdir("./63"executing program [pid 562] write(1, "executing program\n", 18 [pid 297] <... rmdir resumed>) = 0 [pid 562] <... write resumed>) = 18 [pid 298] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./65/binderfs2", [pid 562] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./64", 0777./strace-static-x86_64: Process 563 attached [pid 562] <... mkdirat resumed>) = 0 [pid 298] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./65/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 297] <... mkdir resumed>) = 0 [pid 563] set_robust_list(0x5555726b0660, 24 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 563] <... set_robust_list resumed>) = 0 [pid 562] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 563 [pid 563] chdir("./66" [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./65/binderfs2" [pid 562] <... mount resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./65/binderfs"./strace-static-x86_64: Process 564 attached ) = 0 [pid 563] <... chdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 564 [pid 563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 564] set_robust_list(0x5555726b0660, 24 [pid 563] setpgid(0, 0 [pid 298] getdents64(3, [pid 564] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 564] chdir("./64" [pid 563] <... setpgid resumed>) = 0 [pid 562] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] close(3 [pid 564] <... chdir resumed>) = 0 [pid 563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 563] <... openat resumed>) = 3 [pid 562] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 564] <... prctl resumed>) = 0 [pid 564] setpgid(0, 0 [pid 563] write(3, "1000", 4 [pid 562] exit_group(0 [pid 298] rmdir("./65" [pid 564] <... setpgid resumed>) = 0 [pid 563] <... write resumed>) = 4 [pid 562] <... exit_group resumed>) = ? [pid 298] <... rmdir resumed>) = 0 [pid 564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 564] write(3, "1000", 4 [pid 298] mkdir("./66", 0777 [pid 564] <... write resumed>) = 4 [pid 562] +++ exited with 0 +++ [pid 563] close(3 [pid 564] close(3) = 0 [pid 563] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 564] symlink("/dev/binderfs", "./binderfs") = 0 [pid 563] symlink("/dev/binderfs", "./binderfs" [pid 298] <... mkdir resumed>) = 0 [pid 564] write(1, "executing program\n", 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 564] <... write resumed>) = 18 [pid 563] <... symlink resumed>) = 0 [pid 563] write(1, "executing program\n", 18executing program [pid 564] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 563] <... write resumed>) = 18 ./strace-static-x86_64: Process 565 attached [pid 564] <... mkdirat resumed>) = 0 [pid 563] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 564] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 565] set_robust_list(0x5555726b0660, 24 [pid 563] <... mkdirat resumed>) = 0 [pid 565] <... set_robust_list resumed>) = 0 [pid 565] chdir("./66" [pid 563] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 565] <... chdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 565 [pid 565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 564] <... mount resumed>) = 0 [pid 563] <... mount resumed>) = 0 [pid 565] <... prctl resumed>) = 0 [pid 564] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 565] setpgid(0, 0 [pid 563] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 565] <... setpgid resumed>) = 0 [pid 564] <... openat resumed>) = 3 [pid 565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 564] exit_group(0 [pid 565] <... openat resumed>) = 3 [pid 564] <... exit_group resumed>) = ? [pid 565] write(3, "1000", 4 [pid 564] +++ exited with 0 +++ [pid 563] <... openat resumed>) = 3 [pid 565] <... write resumed>) = 4 [pid 565] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 565] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 565] symlink("/dev/binderfs", "./binderfs" [pid 563] exit_group(0) = ? [pid 565] <... symlink resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 executing program [pid 565] write(1, "executing program\n", 18 [pid 563] +++ exited with 0 +++ [pid 565] <... write resumed>) = 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 565] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 565] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 565] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 565] <... mount resumed>) = 0 [pid 565] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 565] exit_group(0) = ? [pid 297] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./64/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./64/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 565] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] openat(AT_FDCWD, "./64/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, [pid 300] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./65/binderfs2", [pid 297] rmdir("./64/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./65/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(AT_FDCWD, "./64/binderfs", [pid 300] getdents64(4, [pid 298] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] unlink("./64/binderfs" [pid 300] close(4 [pid 299] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... unlink resumed>) = 0 [pid 300] rmdir("./65/binderfs2" [pid 299] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 298] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] close(3 [pid 300] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./65/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./64" [pid 300] unlink("./65/binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./66/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./66/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./66/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] openat(AT_FDCWD, "./66/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", [pid 298] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(4 [pid 298] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 299] rmdir("./66/binderfs2" [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./66/binderfs2" [pid 297] mkdir("./65", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] close(3 [pid 299] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] rmdir("./65" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(AT_FDCWD, "./66/binderfs", [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./66/binderfs"./strace-static-x86_64: Process 566 attached [pid 300] mkdir("./66", 0777 [pid 299] newfstatat(AT_FDCWD, "./66/binderfs", [pid 298] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 566 [pid 299] unlink("./66/binderfs") = 0 [pid 298] getdents64(3, [pid 566] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 566] <... set_robust_list resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 566] chdir("./65" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] close(3 [pid 298] <... close resumed>) = 0 [pid 566] <... chdir resumed>) = 0 [pid 298] rmdir("./66"./strace-static-x86_64: Process 567 attached [pid 566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 567] set_robust_list(0x5555726b0660, 24 [pid 566] <... prctl resumed>) = 0 [pid 567] <... set_robust_list resumed>) = 0 [pid 299] rmdir("./66" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 567 [pid 567] chdir("./66" [pid 298] mkdir("./67", 0777 [pid 567] <... chdir resumed>) = 0 [pid 566] setpgid(0, 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 566] <... setpgid resumed>) = 0 [pid 299] mkdir("./67", 0777 [pid 567] <... prctl resumed>) = 0 [pid 566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 567] setpgid(0, 0) = 0 [pid 566] <... openat resumed>) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 568 attached [pid 567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 568 [pid 566] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 569 attached [pid 568] set_robust_list(0x5555726b0660, 24 [pid 567] <... openat resumed>) = 3 [pid 566] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 569 [pid 568] <... set_robust_list resumed>) = 0 [pid 567] write(3, "1000", 4 [pid 566] <... close resumed>) = 0 [pid 568] chdir("./67" [pid 566] symlink("/dev/binderfs", "./binderfs" [pid 569] set_robust_list(0x5555726b0660, 24 [pid 567] <... write resumed>) = 4 [pid 569] <... set_robust_list resumed>) = 0 [pid 568] <... chdir resumed>) = 0 [pid 567] close(3 [pid 566] <... symlink resumed>) = 0 [pid 567] <... close resumed>) = 0 [pid 568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 567] symlink("/dev/binderfs", "./binderfs" [pid 566] write(1, "executing program\n", 18 executing program [pid 569] chdir("./67" [pid 568] <... prctl resumed>) = 0 [pid 567] <... symlink resumed>) = 0 [pid 566] <... write resumed>) = 18 [pid 568] setpgid(0, 0 [pid 569] <... chdir resumed>) = 0 [pid 568] <... setpgid resumed>) = 0 [pid 566] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 567] write(1, "executing program\n", 18 [pid 568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 569] <... prctl resumed>) = 0 [pid 567] <... write resumed>) = 18 [pid 566] <... mkdirat resumed>) = 0 [pid 569] setpgid(0, 0 [pid 568] <... openat resumed>) = 3 [pid 567] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 566] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 569] <... setpgid resumed>) = 0 [pid 568] write(3, "1000", 4 [pid 567] <... mkdirat resumed>) = 0 [pid 568] <... write resumed>) = 4 [pid 568] close(3) = 0 [pid 568] symlink("/dev/binderfs", "./binderfs" [pid 569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 568] <... symlink resumed>) = 0 [pid 567] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 566] <... mount resumed>) = 0 [pid 569] <... openat resumed>) = 3 executing program [pid 568] write(1, "executing program\n", 18) = 18 [pid 568] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 569] write(3, "1000", 4 [pid 568] <... mkdirat resumed>) = 0 [pid 567] <... mount resumed>) = 0 [pid 566] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 569] <... write resumed>) = 4 [pid 567] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 569] close(3 [pid 566] <... openat resumed>) = 3 [pid 569] <... close resumed>) = 0 [pid 568] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 566] exit_group(0 [pid 569] symlink("/dev/binderfs", "./binderfs" [pid 568] <... mount resumed>) = 0 [pid 567] <... openat resumed>) = 3 [pid 566] <... exit_group resumed>) = ? [pid 568] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 567] exit_group(0 [pid 568] <... openat resumed>) = 3 executing program [pid 568] exit_group(0 [pid 566] +++ exited with 0 +++ [pid 569] <... symlink resumed>) = 0 [pid 567] <... exit_group resumed>) = ? [pid 569] write(1, "executing program\n", 18) = 18 [pid 297] --- 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] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 568] <... exit_group resumed>) = ? [pid 569] <... mkdirat resumed>) = 0 [pid 568] +++ exited with 0 +++ [pid 567] +++ exited with 0 +++ [pid 569] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 569] <... mount resumed>) = 0 [pid 569] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 569] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 569] exit_group(0 [pid 298] <... openat resumed>) = 3 [pid 569] <... exit_group resumed>) = ? [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 569] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=569, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./67/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./67/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./67/binderfs2" [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./67/binderfs", [pid 300] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./67/binderfs" [pid 300] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./65/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./65/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./66/binderfs2", [pid 299] <... restart_syscall resumed>) = 0 [pid 298] rmdir("./67" [pid 297] openat(AT_FDCWD, "./65/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./66/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 299] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] mkdir("./68", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(4, "", [pid 299] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, [pid 297] close(4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 570 attached [pid 300] close(4 [pid 299] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 570 [pid 297] rmdir("./65/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 300] rmdir("./66/binderfs2" [pid 570] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 570] <... set_robust_list resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 570] chdir("./68" [pid 300] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./67/binderfs2", [pid 297] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 570] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./66/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 570] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./65/binderfs", [pid 570] setpgid(0, 0 [pid 300] unlink("./66/binderfs" [pid 570] <... setpgid resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... unlink resumed>) = 0 [pid 570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./65/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./67/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", [pid 570] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 570] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 570] <... write resumed>) = 4 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(3, [pid 570] close(3 [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 570] <... close resumed>) = 0 [pid 300] rmdir("./66" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 570] symlink("/dev/binderfs", "./binderfs" [pid 299] close(4) = 0 [pid 299] rmdir("./67/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 570] <... symlink resumed>) = 0 [pid 299] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./67/binderfs"executing program [pid 570] write(1, "executing program\n", 18 [pid 299] <... unlink resumed>) = 0 [pid 297] rmdir("./65" [pid 300] mkdir("./67", 0777 [pid 570] <... write resumed>) = 18 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./67" [pid 297] <... rmdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 570] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] mkdir("./68", 0777 [pid 570] <... mkdirat resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 570] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] mkdir("./66", 0777./strace-static-x86_64: Process 571 attached ./strace-static-x86_64: Process 572 attached [pid 571] set_robust_list(0x5555726b0660, 24 [pid 572] set_robust_list(0x5555726b0660, 24 [pid 297] <... mkdir resumed>) = 0 [pid 572] <... set_robust_list resumed>) = 0 [pid 571] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 572 [pid 572] chdir("./68" [pid 571] chdir("./67" [pid 572] <... chdir resumed>) = 0 [pid 572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 571] <... chdir resumed>) = 0 [pid 570] <... mount resumed>) = 0 [pid 572] <... prctl resumed>) = 0 [pid 572] setpgid(0, 0 [pid 571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 572] <... setpgid resumed>) = 0 [pid 571] <... prctl resumed>) = 0 [pid 572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 571] setpgid(0, 0 [pid 570] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 571 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 572] <... openat resumed>) = 3 [pid 571] <... setpgid resumed>) = 0 [pid 571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 573 attached [pid 572] write(3, "1000", 4) = 4 [pid 571] <... openat resumed>) = 3 [pid 572] close(3 [pid 573] set_robust_list(0x5555726b0660, 24 [pid 572] <... close resumed>) = 0 [pid 570] <... openat resumed>) = 3 [pid 573] <... set_robust_list resumed>) = 0 [pid 572] symlink("/dev/binderfs", "./binderfs" [pid 571] write(3, "1000", 4 [pid 573] chdir("./66" [pid 572] <... symlink resumed>) = 0 [pid 571] <... write resumed>) = 4 [pid 570] exit_group(0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 573 [pid 571] close(3) = 0 [pid 573] <... chdir resumed>) = 0 executing program [pid 572] write(1, "executing program\n", 18 [pid 571] symlink("/dev/binderfs", "./binderfs" [pid 570] <... exit_group resumed>) = ? [pid 573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 572] <... write resumed>) = 18 [pid 571] <... symlink resumed>) = 0 [pid 573] <... prctl resumed>) = 0 [pid 572] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program ) = 0 [pid 573] setpgid(0, 0 [pid 571] write(1, "executing program\n", 18 [pid 570] +++ exited with 0 +++ [pid 573] <... setpgid resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 571] <... write resumed>) = 18 [pid 573] <... openat resumed>) = 3 [pid 571] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 573] write(3, "1000", 4 [pid 572] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 571] <... mkdirat resumed>) = 0 [pid 573] <... write resumed>) = 4 [pid 572] <... mount resumed>) = 0 [pid 573] close(3) = 0 [pid 573] symlink("/dev/binderfs", "./binderfs" [pid 571] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 573] <... symlink resumed>) = 0 [pid 572] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 573] write(1, "executing program\n", 18executing program ) = 18 [pid 573] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 572] <... openat resumed>) = 3 [pid 571] <... mount resumed>) = 0 [pid 573] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 572] exit_group(0) = ? [pid 573] <... mount resumed>) = 0 [pid 571] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 573] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 571] exit_group(0 [pid 573] <... openat resumed>) = 3 [pid 572] +++ exited with 0 +++ [pid 571] <... exit_group resumed>) = ? [pid 573] exit_group(0 [pid 571] +++ exited with 0 +++ [pid 573] <... exit_group resumed>) = ? [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 573] +++ exited with 0 +++ [pid 299] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 299] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, [pid 299] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./67/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./68/binderfs2", [pid 300] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./67/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 300] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./68/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(4, "", [pid 298] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] close(4 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 298] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] rmdir("./67/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./68/binderfs2", [pid 297] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./68/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./66/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./67/binderfs" [pid 298] openat(AT_FDCWD, "./68/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(3, [pid 297] umount2("./66/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 299] newfstatat(AT_FDCWD, "./68/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./66/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(3) = 0 [pid 300] rmdir("./67") = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 299] unlink("./68/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(4, "", [pid 300] mkdir("./68", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] close(4) = 0 [pid 299] getdents64(3, [pid 298] rmdir("./68/binderfs2" [pid 297] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] close(3 [pid 297] close(4 [pid 298] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] rmdir("./66/binderfs2" [pid 299] rmdir("./68" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 574 attached [pid 574] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 574 [pid 297] <... rmdir resumed>) = 0 [pid 574] <... set_robust_list resumed>) = 0 [pid 574] chdir("./68" [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./68/binderfs", [pid 574] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./68/binderfs" [pid 299] mkdir("./69", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(AT_FDCWD, "./66/binderfs", [pid 574] <... prctl resumed>) = 0 [pid 574] setpgid(0, 0) = 0 [pid 574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 574] write(3, "1000", 4) = 4 [pid 574] close(3) = 0 [pid 574] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(3, [pid 297] unlink("./66/binderfs" [pid 574] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 574] write(1, "executing program\n", 18) = 18 [pid 574] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 575 attached executing program [pid 298] close(3 [pid 297] getdents64(3, [pid 575] set_robust_list(0x5555726b0660, 24 [pid 574] <... mkdirat resumed>) = 0 [pid 575] <... set_robust_list resumed>) = 0 [pid 574] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 575] chdir("./69" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 575 [pid 298] <... close resumed>) = 0 [pid 297] close(3 [pid 298] rmdir("./68" [pid 297] <... close resumed>) = 0 [pid 575] <... chdir resumed>) = 0 [pid 575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 574] <... mount resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./66" [pid 575] <... prctl resumed>) = 0 [pid 575] setpgid(0, 0 [pid 574] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 575] <... setpgid resumed>) = 0 [pid 574] <... openat resumed>) = 3 [pid 574] exit_group(0) = ? [pid 297] <... rmdir resumed>) = 0 [pid 575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] mkdir("./69", 0777) = 0 [pid 575] write(3, "1000", 4 [pid 297] mkdir("./67", 0777 [pid 575] <... write resumed>) = 4 [pid 575] close(3) = 0 [pid 574] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 575] symlink("/dev/binderfs", "./binderfs" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... mkdir resumed>) = 0 [pid 575] <... symlink resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 576 attached [pid 575] write(1, "executing program\n", 18./strace-static-x86_64: Process 577 attached [pid 576] set_robust_list(0x5555726b0660, 24 [pid 575] <... write resumed>) = 18 [pid 577] set_robust_list(0x5555726b0660, 24 [pid 576] <... set_robust_list resumed>) = 0 [pid 575] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 576 [pid 577] <... set_robust_list resumed>) = 0 [pid 576] chdir("./69" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 577 [pid 577] chdir("./67" [pid 575] <... mkdirat resumed>) = 0 [pid 576] <... chdir resumed>) = 0 [pid 577] <... chdir resumed>) = 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 [pid 576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 575] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 576] <... prctl resumed>) = 0 [pid 577] <... openat resumed>) = 3 [pid 576] setpgid(0, 0 [pid 577] write(3, "1000", 4 [pid 576] <... setpgid resumed>) = 0 [pid 577] <... write resumed>) = 4 [pid 577] close(3) = 0 [pid 576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 577] symlink("/dev/binderfs", "./binderfs") = 0 [pid 576] <... openat resumed>) = 3 [pid 575] <... mount resumed>) = 0 [pid 576] write(3, "1000", 4 [pid 300] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 577] write(1, "executing program\n", 18) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 577] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 576] <... write resumed>) = 4 [pid 575] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 576] close(3 [pid 577] <... mkdirat resumed>) = 0 [pid 576] <... close resumed>) = 0 [pid 575] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 576] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 576] <... symlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 577] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 576] write(1, "executing program\n", 18executing program [pid 575] exit_group(0 [pid 576] <... write resumed>) = 18 [pid 575] <... exit_group resumed>) = ? [pid 577] <... mount resumed>) = 0 [pid 576] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 575] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./68/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 577] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 576] <... mkdirat resumed>) = 0 [pid 577] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./68/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 576] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 577] exit_group(0 [pid 576] <... mount resumed>) = 0 [pid 577] <... exit_group resumed>) = ? [pid 300] newfstatat(4, "", [pid 576] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 576] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 299] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 577] +++ exited with 0 +++ [pid 576] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... openat resumed>) = 3 [pid 576] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 576] +++ exited with 0 +++ [pid 300] close(4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... close resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] rmdir("./68/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./68/binderfs", [pid 299] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./69/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./68/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./69/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./69/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] rmdir("./68" [pid 299] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./69/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./69") = 0 [pid 299] mkdir("./70", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./69", 0777) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 578 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 578 [pid 578] set_robust_list(0x5555726b0660, 24) = 0 ./strace-static-x86_64: Process 579 attached [pid 579] set_robust_list(0x5555726b0660, 24 [pid 578] chdir("./69" [pid 579] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 579 [pid 579] chdir("./70" [pid 578] <... chdir resumed>) = 0 [pid 578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 579] <... chdir resumed>) = 0 [pid 578] <... prctl resumed>) = 0 [pid 579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 578] setpgid(0, 0 [pid 579] setpgid(0, 0 [pid 578] <... setpgid resumed>) = 0 [pid 579] <... setpgid resumed>) = 0 [pid 579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 579] <... openat resumed>) = 3 [pid 578] <... openat resumed>) = 3 [pid 579] write(3, "1000", 4 [pid 578] write(3, "1000", 4 [pid 579] <... write resumed>) = 4 [pid 578] <... write resumed>) = 4 [pid 579] close(3) = 0 [pid 578] close(3 [pid 579] symlink("/dev/binderfs", "./binderfs" [pid 578] <... close resumed>) = 0 [pid 578] symlink("/dev/binderfs", "./binderfs" [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 578] <... symlink resumed>) = 0 [pid 298] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, executing program 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 579] <... symlink resumed>) = 0 [pid 298] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 579] write(1, "executing program\n", 18) = 18 executing program [pid 578] write(1, "executing program\n", 18 [pid 297] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 579] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 578] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./69/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 579] <... mkdirat resumed>) = 0 [pid 298] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 578] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./69/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 578] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(3, "", [pid 578] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./69/binderfs2") = 0 [pid 298] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./69/binderfs", [pid 578] <... mount resumed>) = 0 [pid 297] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] unlink("./69/binderfs" [pid 297] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 579] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] rmdir("./69") = 0 [pid 298] mkdir("./70", 0777 [pid 579] <... mount resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 578] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 578] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 579] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 578] exit_group(0 [pid 297] newfstatat(AT_FDCWD, "./67/binderfs2", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 580 ./strace-static-x86_64: Process 580 attached [pid 580] set_robust_list(0x5555726b0660, 24) = 0 [pid 580] chdir("./70" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 580] <... chdir resumed>) = 0 [pid 580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 579] <... openat resumed>) = 3 [pid 578] <... exit_group resumed>) = ? [pid 297] umount2("./67/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 580] setpgid(0, 0 [pid 579] exit_group(0 [pid 580] <... setpgid resumed>) = 0 [pid 580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 580] write(3, "1000", 4 [pid 578] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./67/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] --- 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] <... write resumed>) = 4 [pid 297] <... openat resumed>) = 4 [pid 580] close(3) = 0 [pid 297] newfstatat(4, "", [pid 580] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 579] <... exit_group resumed>) = ? [pid 300] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 580] write(1, "executing program\n", 18) = 18 [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 580] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 297] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 580] <... mkdirat resumed>) = 0 [pid 580] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 579] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] rmdir("./67/binderfs2" [pid 580] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 580] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 580] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 580] exit_group(0) = ? [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 580] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./67/binderfs", [pid 300] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./67/binderfs" [pid 300] newfstatat(AT_FDCWD, "./69/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] openat(AT_FDCWD, "./69/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] close(3 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] rmdir("./67" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./69/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] mkdir("./68", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./69/binderfs" [pid 298] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 298] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 300] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 300] rmdir("./69") = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./70", 0777./strace-static-x86_64: Process 581 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 581 [pid 581] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 581] chdir("./68" [pid 300] <... mkdir resumed>) = 0 [pid 298] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 581] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./70/binderfs2", ./strace-static-x86_64: Process 582 attached [pid 299] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 582] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 582 [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 582] <... set_robust_list resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 582] chdir("./70" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] openat(AT_FDCWD, "./70/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... openat resumed>) = 4 [pid 582] <... chdir resumed>) = 0 [pid 299] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 581] <... prctl resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 582] <... prctl resumed>) = 0 [pid 581] setpgid(0, 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 582] setpgid(0, 0 [pid 581] <... setpgid resumed>) = 0 [pid 299] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 582] <... setpgid resumed>) = 0 [pid 581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] newfstatat(AT_FDCWD, "./70/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 582] <... openat resumed>) = 3 [pid 581] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(4 [pid 581] write(3, "1000", 4 [pid 582] write(3, "1000", 4 [pid 581] <... write resumed>) = 4 [pid 299] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 582] <... write resumed>) = 4 [pid 581] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 582] close(3 [pid 581] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./70/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./70/binderfs2" [pid 582] <... close resumed>) = 0 [pid 581] symlink("/dev/binderfs", "./binderfs" [pid 582] symlink("/dev/binderfs", "./binderfs" [pid 581] <... symlink resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... rmdir resumed>) = 0 executing program executing program [pid 582] <... symlink resumed>) = 0 [pid 581] write(1, "executing program\n", 18) = 18 [pid 299] newfstatat(4, "", [pid 582] write(1, "executing program\n", 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 582] <... write resumed>) = 18 [pid 581] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, [pid 298] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 582] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 582] <... mkdirat resumed>) = 0 [pid 581] <... mkdirat resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./70/binderfs", [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./70/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 582] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 581] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 298] unlink("./70/binderfs" [pid 582] <... mount resumed>) = 0 [pid 581] <... mount resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 299] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 581] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(3, [pid 582] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 581] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 582] <... openat resumed>) = 3 [pid 581] exit_group(0 [pid 299] newfstatat(AT_FDCWD, "./70/binderfs", [pid 298] close(3 [pid 581] <... exit_group resumed>) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 582] exit_group(0 [pid 299] unlink("./70/binderfs" [pid 298] <... close resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] rmdir("./70" [pid 582] <... exit_group resumed>) = ? [pid 581] +++ exited with 0 +++ [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 298] mkdir("./71", 0777 [pid 299] rmdir("./70" [pid 298] <... mkdir resumed>) = 0 [pid 582] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./71", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 583 attached [pid 300] newfstatat(3, "", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 583] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 583 [pid 583] <... set_robust_list resumed>) = 0 [pid 583] chdir("./71" [pid 300] getdents64(3, ./strace-static-x86_64: Process 584 attached [pid 583] <... chdir resumed>) = 0 [pid 584] set_robust_list(0x5555726b0660, 24 [pid 583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 584] <... set_robust_list resumed>) = 0 [pid 583] <... prctl resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 584 [pid 300] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 584] chdir("./71" [pid 583] setpgid(0, 0) = 0 [pid 584] <... chdir resumed>) = 0 [pid 583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 584] setpgid(0, 0) = 0 [pid 583] <... openat resumed>) = 3 [pid 584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 583] write(3, "1000", 4 [pid 584] <... openat resumed>) = 3 [pid 583] <... write resumed>) = 4 [pid 583] close(3) = 0 [pid 584] write(3, "1000", 4 [pid 583] symlink("/dev/binderfs", "./binderfs" [pid 584] <... write resumed>) = 4 [pid 584] close(3 [pid 583] <... symlink resumed>) = 0 [pid 584] <... close resumed>) = 0 [pid 584] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... umount2 resumed>) = 0 [pid 583] write(1, "executing program\n", 18executing program [pid 300] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 584] write(1, "executing program\n", 18executing program [pid 583] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 584] <... write resumed>) = 18 [pid 583] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(AT_FDCWD, "./70/binderfs2", [pid 584] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 584] <... mkdirat resumed>) = 0 [pid 300] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 584] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./70/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 583] <... mkdirat resumed>) = 0 [pid 300] getdents64(4, [pid 584] <... mount resumed>) = 0 [pid 583] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 584] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(4, [pid 584] <... openat resumed>) = 3 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 584] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 297] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./70/binderfs2" [pid 584] <... exit_group resumed>) = ? [pid 584] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 583] <... mount resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./70/binderfs") = 0 [pid 297] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 583] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 583] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(3, "", [pid 300] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 583] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./70" [pid 297] getdents64(3, [pid 583] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./71", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 583] +++ exited with 0 +++ ./strace-static-x86_64: Process 585 attached [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 585] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 585 [pid 585] chdir("./71") = 0 [pid 585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 585] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 585] <... setpgid resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./68/binderfs2", [pid 585] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 585] write(3, "1000", 4 [pid 298] newfstatat(3, "", [pid 297] umount2("./68/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 585] <... write resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 585] close(3 [pid 299] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 585] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./68/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 585] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... openat resumed>) = 4 [pid 585] <... symlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 585] write(1, "executing program\n", 18 [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 585] <... write resumed>) = 18 [pid 299] newfstatat(3, "", [pid 297] close(4 [pid 585] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./68/binderfs2" [pid 299] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 585] <... mkdirat resumed>) = 0 [pid 297] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./68/binderfs", [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./68/binderfs" [pid 585] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./71/binderfs2", [pid 297] getdents64(3, [pid 585] <... mount resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./71/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 585] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(AT_FDCWD, "./71/binderfs2", [pid 298] <... openat resumed>) = 4 [pid 297] rmdir("./68" [pid 585] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(4, "", [pid 299] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 585] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 585] <... exit_group resumed>) = ? [pid 299] openat(AT_FDCWD, "./71/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] mkdir("./69", 0777 [pid 299] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 585] +++ exited with 0 +++ [pid 299] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] close(4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 298] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] rmdir("./71/binderfs2" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./71/binderfs", ./strace-static-x86_64: Process 586 attached [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 586 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 586] set_robust_list(0x5555726b0660, 24 [pid 299] rmdir("./71/binderfs2" [pid 298] unlink("./71/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 300] <... restart_syscall resumed>) = 0 [pid 586] <... set_robust_list resumed>) = 0 [pid 299] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3) = 0 [pid 298] rmdir("./71" [pid 586] chdir("./69" [pid 300] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./71/binderfs", [pid 586] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] unlink("./71/binderfs" [pid 586] <... prctl resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] mkdir("./72", 0777 [pid 586] setpgid(0, 0 [pid 300] newfstatat(3, "", [pid 299] <... unlink resumed>) = 0 [pid 586] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] close(3 [pid 586] <... openat resumed>) = 3 [pid 300] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 586] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = 0 [pid 299] rmdir("./71" [pid 586] <... write resumed>) = 4 ./strace-static-x86_64: Process 587 attached [pid 587] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 587 [pid 587] <... set_robust_list resumed>) = 0 [pid 300] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 586] close(3 [pid 587] chdir("./72" [pid 299] <... rmdir resumed>) = 0 [pid 586] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 586] symlink("/dev/binderfs", "./binderfs" [pid 299] mkdir("./72", 0777 [pid 587] <... chdir resumed>) = 0 [pid 586] <... symlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./71/binderfs2", [pid 587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 587] <... prctl resumed>) = 0 [pid 300] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 587] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 587] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./71/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 586] write(1, "executing program\n", 18 [pid 299] <... mkdir resumed>) = 0 [pid 587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 586] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 4 [pid 586] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 587] <... openat resumed>) = 3 [pid 586] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 587] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 586] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 587] <... write resumed>) = 4 ./strace-static-x86_64: Process 588 attached [pid 587] close(3 [pid 586] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 588 [pid 587] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 587] symlink("/dev/binderfs", "./binderfs" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 588] set_robust_list(0x5555726b0660, 24executing program [pid 586] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 588] <... set_robust_list resumed>) = 0 [pid 587] <... symlink resumed>) = 0 [pid 300] close(4 [pid 587] write(1, "executing program\n", 18 [pid 586] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 588] chdir("./72" [pid 587] <... write resumed>) = 18 [pid 300] rmdir("./71/binderfs2" [pid 588] <... chdir resumed>) = 0 [pid 586] exit_group(0 [pid 588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 586] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 588] <... prctl resumed>) = 0 [pid 587] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 588] setpgid(0, 0) = 0 [pid 587] <... mkdirat resumed>) = 0 [pid 300] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 586] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 587] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] unlink("./71/binderfs" [pid 588] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 588] write(3, "1000", 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 588] <... write resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 588] close(3) = 0 [pid 588] symlink("/dev/binderfs", "./binderfs" [pid 587] <... mount resumed>) = 0 [pid 300] getdents64(3, [pid 297] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 588] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] rmdir("./71" executing program [pid 588] write(1, "executing program\n", 18 [pid 297] <... openat resumed>) = 3 [pid 588] <... write resumed>) = 18 [pid 587] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 588] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] getdents64(3, [pid 300] mkdir("./72", 0777 [pid 587] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 588] <... mkdirat resumed>) = 0 [pid 587] exit_group(0 [pid 297] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 588] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 587] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 589 attached [pid 297] <... umount2 resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 589 [pid 589] set_robust_list(0x5555726b0660, 24) = 0 [pid 589] chdir("./72") = 0 [pid 588] <... mount resumed>) = 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" [pid 587] +++ exited with 0 +++ [pid 297] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 589] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 588] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(AT_FDCWD, "./69/binderfs2", [pid 589] write(1, "executing program\n", 18 [pid 588] <... openat resumed>) = 3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 589] <... write resumed>) = 18 [pid 588] exit_group(0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./69/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 588] <... exit_group resumed>) = ? [pid 589] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 589] <... mkdirat resumed>) = 0 [pid 588] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 589] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./69/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 589] <... mount resumed>) = 0 [pid 589] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] rmdir("./69/binderfs2" [pid 589] exit_group(0) = ? [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./69/binderfs", [pid 589] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./69/binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... unlink resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./69") = 0 [pid 297] mkdir("./70", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 590 attached , child_tidptr=0x5555726b0650) = 590 [pid 590] set_robust_list(0x5555726b0660, 24 [pid 298] <... restart_syscall resumed>) = 0 [pid 590] <... set_robust_list resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 590] chdir("./70" [pid 298] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 590] <... chdir resumed>) = 0 [pid 300] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 590] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./72/binderfs2", [pid 590] setpgid(0, 0 [pid 300] <... openat resumed>) = 3 [pid 590] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(3, "", [pid 298] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./72/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./72/binderfs2") = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 590] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 590] write(3, "1000", 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 590] <... write resumed>) = 4 [pid 590] close(3 [pid 300] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./72/binderfs" [pid 590] <... close resumed>) = 0 [pid 299] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 299] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] <... umount2 resumed>) = 0 [pid 590] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./72" [pid 590] <... symlink resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./73", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 590] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, executing program 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./72/binderfs2", [pid 590] <... write resumed>) = 18 [pid 299] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./72/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 590] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 591 attached [pid 300] newfstatat(4, "", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 591 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 590] <... mkdirat resumed>) = 0 [pid 591] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(4, [pid 299] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 591] <... set_robust_list resumed>) = 0 [pid 590] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 591] chdir("./73" [pid 300] close(4 [pid 299] newfstatat(AT_FDCWD, "./72/binderfs2", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./72/binderfs2" [pid 299] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./72/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 591] <... chdir resumed>) = 0 [pid 590] <... mount resumed>) = 0 [pid 591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... openat resumed>) = 4 [pid 591] <... prctl resumed>) = 0 [pid 300] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 590] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 591] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./72/binderfs", [pid 299] getdents64(4, [pid 590] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 591] <... setpgid resumed>) = 0 [pid 300] unlink("./72/binderfs" [pid 299] getdents64(4, [pid 591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... unlink resumed>) = 0 [pid 590] exit_group(0 [pid 300] getdents64(3, [pid 299] close(4 [pid 590] <... exit_group resumed>) = ? [pid 299] <... close resumed>) = 0 [pid 590] +++ exited with 0 +++ [pid 299] rmdir("./72/binderfs2" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 591] <... openat resumed>) = 3 [pid 300] close(3 [pid 591] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 591] <... write resumed>) = 4 [pid 300] rmdir("./72" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 591] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./72/binderfs", [pid 591] <... close resumed>) = 0 [pid 591] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./72/binderfs" [pid 591] <... symlink resumed>) = 0 [pid 299] <... unlink resumed>) = 0 executing program [pid 591] write(1, "executing program\n", 18 [pid 300] mkdir("./73", 0777 [pid 299] getdents64(3, [pid 591] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 591] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 591] <... mkdirat resumed>) = 0 [pid 299] close(3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... close resumed>) = 0 [pid 591] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] rmdir("./72") = 0 ./strace-static-x86_64: Process 592 attached [pid 592] set_robust_list(0x5555726b0660, 24) = 0 [pid 592] chdir("./73") = 0 [pid 592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 592] setpgid(0, 0 [pid 591] <... mount resumed>) = 0 [pid 592] <... setpgid resumed>) = 0 [pid 592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 592] write(3, "1000", 4 [pid 299] mkdir("./73", 0777 [pid 592] <... write resumed>) = 4 [pid 592] close(3 [pid 297] <... restart_syscall resumed>) = 0 [pid 592] <... close resumed>) = 0 [pid 592] symlink("/dev/binderfs", "./binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 592] <... symlink resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 592 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 591] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 592] write(1, "executing program\n", 18 [pid 297] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 592] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 3 [pid 592] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(3, "", executing program ./strace-static-x86_64: Process 593 attached [pid 592] <... mkdirat resumed>) = 0 [pid 591] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 593] set_robust_list(0x5555726b0660, 24 [pid 591] exit_group(0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 593 [pid 591] <... exit_group resumed>) = ? [pid 593] <... set_robust_list resumed>) = 0 [pid 297] getdents64(3, [pid 593] chdir("./73" [pid 592] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 593] <... chdir resumed>) = 0 [pid 592] <... mount resumed>) = 0 [pid 591] +++ exited with 0 +++ [pid 297] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = 0 [pid 593] <... prctl resumed>) = 0 [pid 593] setpgid(0, 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 593] <... setpgid resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 592] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 593] write(3, "1000", 4 [pid 592] <... openat resumed>) = 3 [pid 593] <... write resumed>) = 4 [pid 297] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 593] close(3 [pid 592] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 593] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./70/binderfs2", [pid 593] symlink("/dev/binderfs", "./binderfs" [pid 592] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 593] <... symlink resumed>) = 0 [pid 592] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./70/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./70/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 593] write(1, "executing program\n", 18 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", executing program {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 593] <... write resumed>) = 18 [pid 297] getdents64(4, [pid 593] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./70/binderfs2" [pid 593] <... mkdirat resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./70/binderfs" [pid 593] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... unlink resumed>) = 0 [pid 593] <... mount resumed>) = 0 [pid 297] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 593] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./70" [pid 593] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 593] exit_group(0 [pid 298] <... openat resumed>) = 3 [pid 593] <... exit_group resumed>) = ? [pid 298] newfstatat(3, "", [pid 297] mkdir("./71", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 593] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 594 attached [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 594] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 594] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 594] chdir("./71" [pid 298] newfstatat(AT_FDCWD, "./73/binderfs2", [pid 594] <... chdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 594 [pid 594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 594] <... prctl resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 594] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 594] <... setpgid resumed>) = 0 [pid 300] getdents64(3, [pid 299] newfstatat(3, "", [pid 594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./73/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 594] <... openat resumed>) = 3 [pid 300] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 594] write(3, "1000", 4 [pid 298] <... openat resumed>) = 4 [pid 594] <... write resumed>) = 4 [pid 594] close(3 [pid 298] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 594] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 594] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, executing program [pid 594] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 594] write(1, "executing program\n", 18 [pid 298] getdents64(4, [pid 594] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 594] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 298] close(4 [pid 300] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 594] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./73/binderfs2", [pid 594] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] rmdir("./73/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./73/binderfs2", [pid 300] openat(AT_FDCWD, "./73/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 299] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 594] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./73/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 594] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(4, [pid 298] <... rmdir resumed>) = 0 [pid 594] <... openat resumed>) = 3 [pid 298] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 594] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 594] <... exit_group resumed>) = ? [pid 300] close(4 [pid 299] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./73/binderfs", [pid 300] rmdir("./73/binderfs2" [pid 299] getdents64(4, [pid 594] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./73/binderfs" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] getdents64(4, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./73/binderfs", [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./73/binderfs2" [pid 298] close(3 [pid 300] unlink("./73/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./73" [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 299] newfstatat(AT_FDCWD, "./73/binderfs", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] rmdir("./73" [pid 299] unlink("./73/binderfs" [pid 298] mkdir("./74", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] mkdir("./74", 0777 [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 595 attached [pid 300] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 595] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 595 [pid 595] <... set_robust_list resumed>) = 0 [pid 595] chdir("./74" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 ./strace-static-x86_64: Process 596 attached [pid 595] <... chdir resumed>) = 0 [pid 299] close(3 [pid 297] newfstatat(3, "", [pid 596] set_robust_list(0x5555726b0660, 24 [pid 595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 596] <... set_robust_list resumed>) = 0 [pid 595] <... prctl resumed>) = 0 [pid 596] chdir("./74" [pid 595] setpgid(0, 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 596 [pid 299] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 596] <... chdir resumed>) = 0 [pid 595] <... setpgid resumed>) = 0 [pid 299] rmdir("./73" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 596] <... prctl resumed>) = 0 [pid 595] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 596] setpgid(0, 0 [pid 595] write(3, "1000", 4 [pid 299] mkdir("./74", 0777 [pid 596] <... setpgid resumed>) = 0 [pid 595] <... write resumed>) = 4 [pid 299] <... mkdir resumed>) = 0 [pid 297] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 595] close(3 [pid 596] <... openat resumed>) = 3 [pid 595] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 596] write(3, "1000", 4 [pid 595] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 297] newfstatat(AT_FDCWD, "./71/binderfs2", ./strace-static-x86_64: Process 597 attached [pid 596] <... write resumed>) = 4 [pid 595] <... symlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 597] set_robust_list(0x5555726b0660, 24 [pid 596] close(3 [pid 595] write(1, "executing program\n", 18 [pid 597] <... set_robust_list resumed>) = 0 [pid 596] <... close resumed>) = 0 [pid 595] <... write resumed>) = 18 [pid 597] chdir("./74" [pid 596] symlink("/dev/binderfs", "./binderfs" [pid 595] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./71/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 597] <... chdir resumed>) = 0 [pid 596] <... symlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 597 executing program [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 596] write(1, "executing program\n", 18 [pid 595] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./71/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 597] <... prctl resumed>) = 0 [pid 596] <... write resumed>) = 18 [pid 595] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... openat resumed>) = 4 [pid 597] setpgid(0, 0 [pid 596] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 595] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 597] <... setpgid resumed>) = 0 [pid 596] <... mkdirat resumed>) = 0 [pid 595] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 596] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 595] <... openat resumed>) = 3 [pid 597] <... openat resumed>) = 3 [pid 297] close(4) = 0 [pid 297] rmdir("./71/binderfs2" [pid 597] write(3, "1000", 4 [pid 596] <... mount resumed>) = 0 [pid 595] exit_group(0 [pid 297] <... rmdir resumed>) = 0 [pid 597] <... write resumed>) = 4 [pid 595] <... exit_group resumed>) = ? [pid 597] close(3 [pid 596] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 595] +++ exited with 0 +++ [pid 596] <... openat resumed>) = 3 [pid 597] <... close resumed>) = 0 [pid 597] symlink("/dev/binderfs", "./binderfs" [pid 596] exit_group(0 [pid 297] unlink("./71/binderfs" [pid 597] <... symlink resumed>) = 0 [pid 596] <... exit_group resumed>) = ? [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... unlink resumed>) = 0 [pid 597] write(1, "executing program\n", 18executing program ) = 18 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 596] +++ exited with 0 +++ [pid 297] <... close resumed>) = 0 [pid 597] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./71" [pid 597] <... mkdirat resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 597] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./72", 0777 [pid 597] <... mount resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 597] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(3, "", [pid 597] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 597] exit_group(0 [pid 298] getdents64(3, ./strace-static-x86_64: Process 598 attached [pid 597] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 598] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 598 [pid 597] +++ exited with 0 +++ [pid 598] <... set_robust_list resumed>) = 0 [pid 298] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 598] chdir("./72" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=597, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 598] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 598] <... prctl resumed>) = 0 [pid 598] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 598] <... setpgid resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./74/binderfs2", [pid 598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 598] <... openat resumed>) = 3 [pid 298] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 598] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 598] <... write resumed>) = 4 [pid 298] openat(AT_FDCWD, "./74/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 598] close(3 [pid 298] <... openat resumed>) = 4 [pid 598] <... close resumed>) = 0 [pid 298] newfstatat(4, "", [pid 598] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 598] <... symlink resumed>) = 0 executing program [pid 598] write(1, "executing program\n", 18 [pid 298] getdents64(4, [pid 598] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 598] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 598] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 598] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] close(4) = 0 [pid 300] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./74/binderfs2" [pid 598] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 598] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 598] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 598] exit_group(0 [pid 300] newfstatat(3, "", [pid 598] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 598] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./74/binderfs", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = 0 [pid 298] unlink("./74/binderfs") = 0 [pid 298] getdents64(3, [pid 300] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 298] close(3 [pid 300] newfstatat(AT_FDCWD, "./74/binderfs2", [pid 298] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./74" [pid 300] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./74/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 4 [pid 297] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 299] <... openat resumed>) = 3 [pid 298] mkdir("./75", 0777 [pid 297] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] <... mkdir resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 599 attached [pid 297] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./74/binderfs2") = 0 [pid 297] <... umount2 resumed>) = 0 [pid 599] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 599 [pid 599] <... set_robust_list resumed>) = 0 [pid 300] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 599] chdir("./75" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./74/binderfs2", [pid 297] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 599] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./74/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 599] <... prctl resumed>) = 0 [pid 300] unlink("./74/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./72/binderfs2", [pid 599] setpgid(0, 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 599] <... setpgid resumed>) = 0 [pid 297] umount2("./72/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./74/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 599] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 599] write(3, "1000", 4 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./72/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 599] <... write resumed>) = 4 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 4 [pid 599] close(3 [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] newfstatat(4, "", [pid 599] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 599] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(4, [pid 300] rmdir("./74" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 599] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./74/binderfs2"executing program [pid 599] write(1, "executing program\n", 18 [pid 300] mkdir("./75", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(4, [pid 599] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 599] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./74/binderfs", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 599] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./72/binderfs2"./strace-static-x86_64: Process 600 attached [pid 299] unlink("./74/binderfs") = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 600 [pid 299] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 600] set_robust_list(0x5555726b0660, 24 [pid 599] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 600] <... set_robust_list resumed>) = 0 [pid 297] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 600] chdir("./75" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./74") = 0 [pid 299] mkdir("./75", 0777 [pid 599] <... mount resumed>) = 0 [pid 600] <... chdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./72/binderfs", [pid 600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 599] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 600] <... prctl resumed>) = 0 [pid 297] unlink("./72/binderfs" [pid 600] setpgid(0, 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 600] <... setpgid resumed>) = 0 [pid 599] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 601 attached [pid 600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 599] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 601 [pid 600] <... openat resumed>) = 3 [pid 599] <... exit_group resumed>) = ? [pid 297] close(3 [pid 600] write(3, "1000", 4) = 4 [pid 297] <... close resumed>) = 0 [pid 601] set_robust_list(0x5555726b0660, 24 [pid 599] +++ exited with 0 +++ [pid 600] close(3 [pid 297] rmdir("./72" [pid 600] <... close resumed>) = 0 [pid 601] <... set_robust_list resumed>) = 0 [pid 601] chdir("./75" [pid 600] symlink("/dev/binderfs", "./binderfs" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... rmdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 601] <... chdir resumed>) = 0 [pid 601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 600] <... symlink resumed>) = 0 [pid 601] <... prctl resumed>) = 0 [pid 601] setpgid(0, 0) = 0 executing program [pid 600] write(1, "executing program\n", 18 [pid 297] mkdir("./73", 0777 [pid 600] <... write resumed>) = 18 [pid 601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 601] write(3, "1000", 4) = 4 [pid 297] <... mkdir resumed>) = 0 [pid 600] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 601] close(3) = 0 [pid 600] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 602 attached [pid 601] symlink("/dev/binderfs", "./binderfs" executing program [pid 298] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 602] set_robust_list(0x5555726b0660, 24 [pid 601] <... symlink resumed>) = 0 [pid 600] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 601] write(1, "executing program\n", 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 602] <... set_robust_list resumed>) = 0 [pid 601] <... write resumed>) = 18 [pid 298] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 602 [pid 602] chdir("./73" [pid 601] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... openat resumed>) = 3 [pid 602] <... chdir resumed>) = 0 [pid 600] <... mount resumed>) = 0 [pid 298] newfstatat(3, "", [pid 602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 602] <... prctl resumed>) = 0 [pid 298] getdents64(3, [pid 602] setpgid(0, 0) = 0 [pid 600] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 600] <... openat resumed>) = 3 [pid 601] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 602] <... openat resumed>) = 3 [pid 601] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 600] exit_group(0 [pid 298] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 602] write(3, "1000", 4 [pid 600] <... exit_group resumed>) = ? [pid 602] <... write resumed>) = 4 [pid 600] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = 0 [pid 602] close(3) = 0 [pid 601] <... mount resumed>) = 0 [pid 602] symlink("/dev/binderfs", "./binderfs") = 0 [pid 602] write(1, "executing program\n", 18executing program ) = 18 [pid 602] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 601] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 602] <... mkdirat resumed>) = 0 [pid 601] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 602] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 601] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./75/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 601] <... exit_group resumed>) = ? [pid 602] <... mount resumed>) = 0 [pid 298] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 602] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 602] exit_group(0) = ? [pid 601] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./75/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 602] +++ exited with 0 +++ [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./75/binderfs2") = 0 [pid 298] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./75/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./75" [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] mkdir("./76", 0777 [pid 299] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... mkdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./75/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 603 attached [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 603] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 603] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 603] chdir("./76" [pid 297] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 603] <... chdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./75/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... openat resumed>) = 4 [pid 603] <... prctl resumed>) = 0 [pid 299] newfstatat(4, "", [pid 603] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 603] <... setpgid resumed>) = 0 [pid 299] getdents64(4, [pid 603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 603 [pid 297] newfstatat(3, "", [pid 300] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./75/binderfs2", [pid 603] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 603] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 603] <... write resumed>) = 4 [pid 300] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 297] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 603] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 603] <... close resumed>) = 0 [pid 299] rmdir("./75/binderfs2" [pid 603] symlink("/dev/binderfs", "./binderfs" [pid 300] openat(AT_FDCWD, "./75/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 603] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... openat resumed>) = 4 executing program [pid 603] write(1, "executing program\n", 18) = 18 [pid 603] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 603] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./75/binderfs", [pid 297] newfstatat(AT_FDCWD, "./73/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./75/binderfs" [pid 603] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 603] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./73/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 297] openat(AT_FDCWD, "./73/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... openat resumed>) = 4 [pid 300] rmdir("./75/binderfs2" [pid 299] <... close resumed>) = 0 [pid 603] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] rmdir("./75" [pid 297] newfstatat(4, "", [pid 603] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./76", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 603] exit_group(0 [pid 300] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 603] <... exit_group resumed>) = ? [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./75/binderfs", [pid 603] +++ exited with 0 +++ [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] unlink("./75/binderfs" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] close(4./strace-static-x86_64: Process 604 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 604 [pid 297] <... close resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] rmdir("./73/binderfs2" [pid 300] getdents64(3, [pid 604] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 604] <... set_robust_list resumed>) = 0 [pid 300] close(3 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./75" [pid 604] chdir("./76" [pid 297] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 604] <... chdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./73/binderfs", [pid 300] mkdir("./76", 0777 [pid 604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 604] <... prctl resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] unlink("./73/binderfs" [pid 604] setpgid(0, 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 604] <... setpgid resumed>) = 0 [pid 604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, ./strace-static-x86_64: Process 605 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 605 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 605] set_robust_list(0x5555726b0660, 24 [pid 297] close(3) = 0 [pid 605] <... set_robust_list resumed>) = 0 [pid 604] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./73" [pid 604] write(3, "1000", 4) = 4 [pid 604] close(3) = 0 [pid 604] symlink("/dev/binderfs", "./binderfs"executing program [pid 605] chdir("./76" [pid 604] <... symlink resumed>) = 0 [pid 604] write(1, "executing program\n", 18) = 18 [pid 297] <... rmdir resumed>) = 0 [pid 605] <... chdir resumed>) = 0 [pid 604] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 605] <... prctl resumed>) = 0 [pid 297] mkdir("./74", 0777 [pid 605] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 605] <... setpgid resumed>) = 0 [pid 604] <... mkdirat resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./76/binderfs2", [pid 604] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 605] <... openat resumed>) = 3 [pid 604] <... mount resumed>) = 0 [pid 298] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 604] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 604] exit_group(0) = ? [pid 298] openat(AT_FDCWD, "./76/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 606 attached [pid 605] write(3, "1000", 4 [pid 606] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] <... openat resumed>) = 4 [pid 605] <... write resumed>) = 4 [pid 605] close(3 [pid 606] chdir("./74" [pid 605] <... close resumed>) = 0 [pid 604] +++ exited with 0 +++ [pid 298] newfstatat(4, "", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 606 [pid 605] symlink("/dev/binderfs", "./binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 606] <... chdir resumed>) = 0 [pid 606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 606] setpgid(0, 0) = 0 [pid 605] <... symlink resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 298] getdents64(4, [pid 605] write(1, "executing program\n", 18 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 605] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 605] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] getdents64(4, [pid 606] <... openat resumed>) = 3 [pid 606] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 606] <... write resumed>) = 4 [pid 606] close(3 [pid 298] close(4 [pid 606] <... close resumed>) = 0 [pid 606] symlink("/dev/binderfs", "./binderfs"executing program [pid 298] <... close resumed>) = 0 [pid 606] <... symlink resumed>) = 0 [pid 298] rmdir("./76/binderfs2" [pid 606] write(1, "executing program\n", 18) = 18 [pid 606] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 606] <... mkdirat resumed>) = 0 [pid 606] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 605] <... mkdirat resumed>) = 0 [pid 298] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 605] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 606] <... mount resumed>) = 0 [pid 298] unlink("./76/binderfs" [pid 606] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 606] exit_group(0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 606] <... exit_group resumed>) = ? [pid 605] <... mount resumed>) = 0 [pid 606] +++ exited with 0 +++ [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./76" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 605] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 605] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./77", 0777 [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 605] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 607 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 607 [pid 607] set_robust_list(0x5555726b0660, 24 [pid 605] <... exit_group resumed>) = ? [pid 299] <... umount2 resumed>) = 0 [pid 607] <... set_robust_list resumed>) = 0 [pid 607] chdir("./77") = 0 [pid 607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 607] setpgid(0, 0) = 0 [pid 607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 607] write(3, "1000", 4) = 4 [pid 605] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 607] close(3) = 0 [pid 607] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 607] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 607] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./76/binderfs2", [pid 607] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 607] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 607] <... mkdirat resumed>) = 0 [pid 299] openat(AT_FDCWD, "./76/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 607] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 607] <... mount resumed>) = 0 [pid 299] close(4 [pid 607] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... close resumed>) = 0 [pid 297] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./76/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 607] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 607] exit_group(0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 607] <... exit_group resumed>) = ? [pid 607] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 299] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=607, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./76/binderfs", [pid 297] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] unlink("./76/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] rmdir("./76" [pid 297] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./77", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./74/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./74/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./74/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 608 attached ) = 4 [pid 297] newfstatat(4, "", [pid 300] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 608] set_robust_list(0x5555726b0660, 24 [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 608 [pid 608] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 608] chdir("./77" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 608] <... chdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] close(4 [pid 608] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 608] setpgid(0, 0 [pid 300] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./74/binderfs2" [pid 608] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./76/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] openat(AT_FDCWD, "./76/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./76/binderfs2" [pid 298] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 608] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 608] write(3, "1000", 4 [pid 300] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 608] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./74/binderfs", [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 608] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./74/binderfs" [pid 608] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./76/binderfs", [pid 608] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 608] <... symlink resumed>) = 0 [pid 300] unlink("./76/binderfs" [pid 297] <... unlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 608] write(1, "executing program\n", 18 [pid 300] getdents64(3, executing program [pid 608] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 608] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] close(3 [pid 298] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 300] rmdir("./76" [pid 608] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 608] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] mkdir("./77", 0777 [pid 298] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 608] <... mount resumed>) = 0 [pid 608] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... close resumed>) = 0 [pid 608] <... openat resumed>) = 3 [pid 608] exit_group(0) = ? [pid 300] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./74" [pid 298] newfstatat(AT_FDCWD, "./77/binderfs2", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 608] +++ exited with 0 +++ [pid 298] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./75", 0777./strace-static-x86_64: Process 609 attached [pid 298] openat(AT_FDCWD, "./77/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 609] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 609 [pid 609] <... set_robust_list resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 609] chdir("./77" [pid 298] newfstatat(4, "", [pid 609] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 609] setpgid(0, 0) = 0 [pid 609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 609] write(3, "1000", 4) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 609] close(3) = 0 [pid 298] getdents64(4, [pid 609] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 610 attached ) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 609] write(1, "executing program\n", 18 [pid 298] close(4 [pid 609] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./77/binderfs2" [pid 610] set_robust_list(0x5555726b0660, 24 [pid 609] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 609] <... mkdirat resumed>) = 0 [pid 610] <... set_robust_list resumed>) = 0 [pid 298] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 610 [pid 609] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 610] chdir("./75" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 610] <... chdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./77/binderfs", [pid 610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 609] <... mount resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 610] <... prctl resumed>) = 0 [pid 298] unlink("./77/binderfs" [pid 610] setpgid(0, 0 [pid 609] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... unlink resumed>) = 0 [pid 610] <... setpgid resumed>) = 0 [pid 609] <... openat resumed>) = 3 [pid 609] exit_group(0) = ? [pid 610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(3, [pid 610] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 610] write(3, "1000", 4 [pid 609] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 610] <... write resumed>) = 4 [pid 610] close(3 [pid 298] close(3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 610] <... close resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 610] symlink("/dev/binderfs", "./binderfs" [pid 298] rmdir("./77" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 610] <... symlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 610] write(1, "executing program\n", 18 [pid 299] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 610] <... write resumed>) = 18 [pid 298] mkdir("./78", 0777 [pid 299] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 610] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 610] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./77/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 611 attached ) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./77/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(4, "", [pid 611] set_robust_list(0x5555726b0660, 24 [pid 610] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 611] <... set_robust_list resumed>) = 0 [pid 610] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 611 [pid 611] chdir("./78") = 0 [pid 610] <... openat resumed>) = 3 [pid 300] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 611] <... prctl resumed>) = 0 [pid 610] exit_group(0 [pid 300] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 611] setpgid(0, 0 [pid 610] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 299] close(4 [pid 611] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 299] rmdir("./77/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... rmdir resumed>) = 0 [pid 610] +++ exited with 0 +++ [pid 300] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./77/binderfs" [pid 611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./77/binderfs2", [pid 611] <... openat resumed>) = 3 [pid 297] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 611] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 297] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 611] <... write resumed>) = 4 [pid 300] openat(AT_FDCWD, "./77/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... close resumed>) = 0 [pid 611] close(3 [pid 300] <... openat resumed>) = 4 [pid 299] rmdir("./77" [pid 297] <... openat resumed>) = 3 [pid 611] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 611] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 611] <... symlink resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] mkdir("./78", 0777 [pid 611] write(1, "executing program\n", 18 executing program [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 611] <... write resumed>) = 18 [pid 297] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] close(4) = 0 [pid 611] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./77/binderfs2") = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./75/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 612 attached [pid 300] newfstatat(AT_FDCWD, "./77/binderfs", [pid 612] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./77/binderfs" [pid 611] <... mkdirat resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 612] <... set_robust_list resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 612 [pid 297] umount2("./75/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 612] chdir("./78" [pid 611] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 612] <... chdir resumed>) = 0 [pid 300] getdents64(3, [pid 297] openat(AT_FDCWD, "./75/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 612] <... prctl resumed>) = 0 [pid 300] close(3 [pid 612] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 612] <... setpgid resumed>) = 0 [pid 300] rmdir("./77" [pid 612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 611] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 612] <... openat resumed>) = 3 [pid 612] write(3, "1000", 4) = 4 [pid 612] close(3 [pid 300] mkdir("./78", 0777 [pid 612] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 611] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 612] symlink("/dev/binderfs", "./binderfs"executing program [pid 611] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 612] <... symlink resumed>) = 0 [pid 612] write(1, "executing program\n", 18) = 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 612] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 611] exit_group(0 [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 613 attached [pid 612] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 613 [pid 297] rmdir("./75/binderfs2" [pid 613] set_robust_list(0x5555726b0660, 24 [pid 612] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 613] <... set_robust_list resumed>) = 0 [pid 611] <... exit_group resumed>) = ? [pid 613] chdir("./78" [pid 612] <... mount resumed>) = 0 [pid 612] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 612] exit_group(0) = ? [pid 611] +++ exited with 0 +++ [pid 297] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 613] <... chdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 612] +++ exited with 0 +++ [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 613] <... prctl resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./75/binderfs", [pid 613] setpgid(0, 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 613] <... setpgid resumed>) = 0 [pid 297] unlink("./75/binderfs" [pid 613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 613] <... openat resumed>) = 3 [pid 613] write(3, "1000", 4 [pid 297] close(3 [pid 613] <... write resumed>) = 4 [pid 613] close(3) = 0 [pid 613] symlink("/dev/binderfs", "./binderfs" [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./75" [pid 613] <... symlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./76", 0777executing program [pid 613] write(1, "executing program\n", 18) = 18 [pid 613] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 614 attached [pid 614] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 614 [pid 613] <... mkdirat resumed>) = 0 [pid 614] <... set_robust_list resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 614] chdir("./76" [pid 613] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 614] <... chdir resumed>) = 0 [pid 614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 614] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 614] setpgid(0, 0) = 0 [pid 299] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 613] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 614] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 614] write(3, "1000", 4 [pid 299] getdents64(3, [pid 614] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 613] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 614] close(3 [pid 299] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 614] <... close resumed>) = 0 [pid 614] symlink("/dev/binderfs", "./binderfs"executing program [pid 613] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 614] <... symlink resumed>) = 0 [pid 614] write(1, "executing program\n", 18) = 18 [pid 613] exit_group(0 [pid 299] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 613] <... exit_group resumed>) = ? [pid 298] <... restart_syscall resumed>) = 0 [pid 614] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./78/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 613] +++ exited with 0 +++ [pid 299] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 614] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 614] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] openat(AT_FDCWD, "./78/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 614] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 614] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 614] exit_group(0 [pid 299] rmdir("./78/binderfs2" [pid 298] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 614] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 614] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./78/binderfs", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./78/binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./78/binderfs2", [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3) = 0 [pid 299] rmdir("./78" [pid 298] openat(AT_FDCWD, "./78/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(AT_FDCWD, "./78/binderfs2", [pid 298] <... openat resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(4, "", [pid 300] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./79", 0777 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] openat(AT_FDCWD, "./78/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... mkdir resumed>) = 0 [pid 298] getdents64(4, [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(4, [pid 297] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 615 attached [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 615 [pid 297] getdents64(3, [pid 615] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(4, [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 615] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 297] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 615] chdir("./79" [pid 300] close(4 [pid 298] rmdir("./78/binderfs2" [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./76/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./78/binderfs2" [pid 297] umount2("./76/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 615] <... chdir resumed>) = 0 [pid 298] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./76/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./76/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./78/binderfs", [pid 615] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 615] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./78/binderfs", [pid 298] unlink("./78/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./76/binderfs", [pid 300] unlink("./78/binderfs" [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./76/binderfs" [pid 300] <... unlink resumed>) = 0 [pid 615] <... setpgid resumed>) = 0 [pid 300] getdents64(3, [pid 298] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] close(3 [pid 298] close(3 [pid 297] getdents64(3, [pid 300] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 298] <... close resumed>) = 0 [pid 300] rmdir("./78" [pid 615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] rmdir("./78" [pid 297] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./76" [pid 615] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] mkdir("./79", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] mkdir("./79", 0777 [pid 297] mkdir("./77", 0777 [pid 615] write(3, "1000", 4 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 615] <... write resumed>) = 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 615] close(3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 616 attached ./strace-static-x86_64: Process 618 attached [pid 615] <... close resumed>) = 0 [pid 615] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 617 attached [pid 618] set_robust_list(0x5555726b0660, 24 [pid 617] set_robust_list(0x5555726b0660, 24 [pid 615] <... symlink resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 618 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 616 [pid 618] <... set_robust_list resumed>) = 0 [pid 617] <... set_robust_list resumed>) = 0 [pid 616] set_robust_list(0x5555726b0660, 24 [pid 615] write(1, "executing program\n", 18 [pid 618] chdir("./79"executing program ) = 0 [pid 617] chdir("./77" [pid 616] <... set_robust_list resumed>) = 0 [pid 615] <... write resumed>) = 18 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 617 [pid 618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 616] chdir("./79" [pid 618] <... prctl resumed>) = 0 [pid 617] <... chdir resumed>) = 0 [pid 615] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 616] <... chdir resumed>) = 0 [pid 618] setpgid(0, 0 [pid 617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 616] setpgid(0, 0) = 0 [pid 616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 618] <... setpgid resumed>) = 0 [pid 617] <... prctl resumed>) = 0 [pid 615] <... mkdirat resumed>) = 0 [pid 618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 616] <... openat resumed>) = 3 [pid 616] write(3, "1000", 4) = 4 [pid 616] close(3) = 0 [pid 616] symlink("/dev/binderfs", "./binderfs" [pid 617] setpgid(0, 0 [pid 618] <... openat resumed>) = 3 [pid 617] <... setpgid resumed>) = 0 [pid 618] write(3, "1000", 4 [pid 615] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 616] <... symlink resumed>) = 0 [pid 616] write(1, "executing program\n", 18) = 18 [pid 616] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 615] <... mount resumed>) = 0 [pid 618] <... write resumed>) = 4 executing program [pid 617] <... openat resumed>) = 3 [pid 616] <... mkdirat resumed>) = 0 [pid 616] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 617] write(3, "1000", 4 [pid 618] close(3 [pid 615] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 617] <... write resumed>) = 4 [pid 618] <... close resumed>) = 0 [pid 617] close(3 [pid 618] symlink("/dev/binderfs", "./binderfs" [pid 617] <... close resumed>) = 0 executing program [pid 618] <... symlink resumed>) = 0 [pid 617] symlink("/dev/binderfs", "./binderfs" [pid 616] <... mount resumed>) = 0 [pid 615] <... openat resumed>) = 3 [pid 616] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 617] <... symlink resumed>) = 0 [pid 617] write(1, "executing program\n", 18) = 18 [pid 615] exit_group(0 [pid 618] write(1, "executing program\n", 18 executing program [pid 617] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 616] exit_group(0 [pid 618] <... write resumed>) = 18 [pid 616] <... exit_group resumed>) = ? [pid 615] <... exit_group resumed>) = ? [pid 618] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 617] <... mkdirat resumed>) = 0 [pid 615] +++ exited with 0 +++ [pid 616] +++ exited with 0 +++ [pid 617] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 618] <... mkdirat resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 618] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 617] <... mount resumed>) = 0 [pid 299] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 617] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 617] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 617] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 617] <... exit_group resumed>) = ? [pid 299] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 618] <... mount resumed>) = 0 [pid 618] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 618] exit_group(0) = ? [pid 617] +++ exited with 0 +++ [pid 299] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 618] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./79/binderfs2", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./79/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./79/binderfs2") = 0 [pid 299] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./79/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./79") = 0 [pid 299] mkdir("./80", 0777) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555726b0650) = 619 ./strace-static-x86_64: Process 619 attached [pid 619] set_robust_list(0x5555726b0660, 24) = 0 [pid 619] chdir("./80") = 0 [pid 619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 619] setpgid(0, 0) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 619] <... openat resumed>) = 3 [pid 619] write(3, "1000", 4) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 619] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 619] symlink("/dev/binderfs", "./binderfs" [pid 297] <... openat resumed>) = 3 [pid 619] <... symlink resumed>) = 0 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, executing program [pid 619] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 619] <... write resumed>) = 18 [pid 298] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] <... mkdirat resumed>) = 0 [pid 298] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 619] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 298] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./77/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 619] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./77/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] <... openat resumed>) = 3 [pid 298] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./77/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 619] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./79/binderfs2", [pid 297] <... openat resumed>) = 4 [pid 619] <... exit_group resumed>) = ? [pid 297] newfstatat(4, "", [pid 619] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./79/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./79/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./79/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./77/binderfs2" [pid 300] newfstatat(4, "", [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 298] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./79/binderfs2" [pid 299] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./79/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./77/binderfs", [pid 299] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./77/binderfs" [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./79/binderfs", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./79/binderfs", [pid 298] unlink("./79/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./77" [pid 299] newfstatat(AT_FDCWD, "./80/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./78", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./79/binderfs" [pid 298] getdents64(3, [pid 299] openat(AT_FDCWD, "./80/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", [pid 300] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] close(3 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 [pid 299] close(4 [pid 298] <... close resumed>) = 0 ./strace-static-x86_64: Process 620 attached [pid 300] rmdir("./79" [pid 299] <... close resumed>) = 0 [pid 298] rmdir("./79" [pid 299] rmdir("./80/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 620 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] mkdir("./80", 0777 [pid 620] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./80/binderfs" [pid 300] <... mkdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./80" [pid 620] <... set_robust_list resumed>) = 0 [pid 298] mkdir("./80", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 620] chdir("./78" [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./81", 0777) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 620] <... chdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 621 attached [pid 620] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 622 attached [pid 621] set_robust_list(0x5555726b0660, 24 [pid 622] set_robust_list(0x5555726b0660, 24) = 0 [pid 621] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 622 ./strace-static-x86_64: Process 623 attached [pid 622] chdir("./81" [pid 621] chdir("./80" [pid 620] <... prctl resumed>) = 0 [pid 622] <... chdir resumed>) = 0 [pid 621] <... chdir resumed>) = 0 [pid 620] setpgid(0, 0 [pid 622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 620] <... setpgid resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 621 [pid 623] set_robust_list(0x5555726b0660, 24 [pid 622] <... prctl resumed>) = 0 [pid 621] <... prctl resumed>) = 0 [pid 623] <... set_robust_list resumed>) = 0 [pid 622] setpgid(0, 0 [pid 621] setpgid(0, 0 [pid 620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 623 [pid 623] chdir("./80" [pid 622] <... setpgid resumed>) = 0 [pid 621] <... setpgid resumed>) = 0 [pid 620] <... openat resumed>) = 3 [pid 623] <... chdir resumed>) = 0 [pid 622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 622] <... openat resumed>) = 3 [pid 621] <... openat resumed>) = 3 [pid 623] <... prctl resumed>) = 0 [pid 623] setpgid(0, 0 [pid 622] write(3, "1000", 4 [pid 623] <... setpgid resumed>) = 0 [pid 622] <... write resumed>) = 4 [pid 621] write(3, "1000", 4 [pid 620] write(3, "1000", 4 [pid 623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 622] close(3 [pid 621] <... write resumed>) = 4 [pid 620] <... write resumed>) = 4 [pid 623] <... openat resumed>) = 3 [pid 622] <... close resumed>) = 0 [pid 621] close(3 [pid 620] close(3 [pid 622] symlink("/dev/binderfs", "./binderfs" [pid 621] <... close resumed>) = 0 [pid 620] <... close resumed>) = 0 [pid 623] write(3, "1000", 4 [pid 622] <... symlink resumed>) = 0 [pid 621] symlink("/dev/binderfs", "./binderfs" [pid 623] <... write resumed>) = 4 [pid 620] symlink("/dev/binderfs", "./binderfs"executing program [pid 623] close(3 [pid 622] write(1, "executing program\n", 18 [pid 620] <... symlink resumed>) = 0 [pid 623] <... close resumed>) = 0 [pid 622] <... write resumed>) = 18 [pid 621] <... symlink resumed>) = 0 [pid 623] symlink("/dev/binderfs", "./binderfs" [pid 622] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 621] write(1, "executing program\n", 18 [pid 623] <... symlink resumed>) = 0 executing program [pid 620] write(1, "executing program\n", 18 [pid 622] <... mkdirat resumed>) = 0 [pid 621] <... write resumed>) = 18 [pid 620] <... write resumed>) = 18 executing program [pid 623] write(1, "executing program\n", 18 [pid 620] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 623] <... write resumed>) = 18 [pid 622] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 621] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 623] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 620] <... mkdirat resumed>) = 0 [pid 623] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 621] <... mkdirat resumed>) = 0 [pid 623] <... mount resumed>) = 0 [pid 623] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 621] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 620] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 623] exit_group(0) = ? [pid 622] <... mount resumed>) = 0 [pid 623] +++ exited with 0 +++ [pid 621] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 622] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 620] <... mount resumed>) = 0 [pid 621] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 622] <... openat resumed>) = 3 [pid 620] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 621] <... openat resumed>) = 3 [pid 622] exit_group(0) = ? [pid 620] <... openat resumed>) = 3 [pid 621] exit_group(0 [pid 622] +++ exited with 0 +++ [pid 620] exit_group(0 [pid 621] <... exit_group resumed>) = ? [pid 620] <... exit_group resumed>) = ? [pid 621] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 620] +++ exited with 0 +++ [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 297] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 300] newfstatat(3, "", [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./80/binderfs2", [pid 297] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./80/binderfs2", [pid 298] openat(AT_FDCWD, "./80/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] newfstatat(AT_FDCWD, "./78/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./80/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./81/binderfs2", [pid 298] getdents64(4, [pid 297] umount2("./78/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./78/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./81/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 300] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 298] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(4, "", [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 300] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./80/binderfs2" [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./80/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./80/binderfs", [pid 297] close(4 [pid 300] newfstatat(AT_FDCWD, "./80/binderfs", [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./81/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./78/binderfs2" [pid 300] unlink("./80/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] unlink("./80/binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./81/binderfs", [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 297] newfstatat(AT_FDCWD, "./78/binderfs", [pid 300] rmdir("./80" [pid 299] unlink("./81/binderfs" [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] rmdir("./80" [pid 297] unlink("./78/binderfs" [pid 300] mkdir("./81", 0777 [pid 297] <... unlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] rmdir("./81" [pid 298] mkdir("./81", 0777 [pid 297] close(3./strace-static-x86_64: Process 624 attached [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./78" [pid 624] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 624 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 624] <... set_robust_list resumed>) = 0 [pid 624] chdir("./81" [pid 299] mkdir("./82", 0777 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 624] <... chdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] mkdir("./79", 0777) = 0 ./strace-static-x86_64: Process 625 attached [pid 624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 625] set_robust_list(0x5555726b0660, 24 [pid 624] <... prctl resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 625 [pid 625] <... set_robust_list resumed>) = 0 [pid 624] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 626 attached [pid 625] chdir("./81" [pid 624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 626] set_robust_list(0x5555726b0660, 24 [pid 625] <... chdir resumed>) = 0 [pid 626] <... set_robust_list resumed>) = 0 [pid 625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 624] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 626 ./strace-static-x86_64: Process 627 attached [pid 625] <... prctl resumed>) = 0 [pid 624] write(3, "1000", 4 [pid 626] chdir("./82" [pid 627] set_robust_list(0x5555726b0660, 24 [pid 625] setpgid(0, 0 [pid 624] <... write resumed>) = 4 [pid 627] <... set_robust_list resumed>) = 0 [pid 626] <... chdir resumed>) = 0 [pid 625] <... setpgid resumed>) = 0 [pid 624] close(3 [pid 626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 624] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 627 [pid 627] chdir("./79" [pid 626] <... prctl resumed>) = 0 [pid 625] <... openat resumed>) = 3 [pid 624] symlink("/dev/binderfs", "./binderfs" [pid 627] <... chdir resumed>) = 0 [pid 626] setpgid(0, 0 [pid 625] write(3, "1000", 4 [pid 627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 626] <... setpgid resumed>) = 0 [pid 624] <... symlink resumed>) = 0 [pid 627] <... prctl resumed>) = 0 [pid 625] <... write resumed>) = 4 [pid 627] setpgid(0, 0 [pid 626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 625] close(3 [pid 624] write(1, "executing program\n", 18 [pid 627] <... setpgid resumed>) = 0 [pid 625] <... close resumed>) = 0 [pid 626] <... openat resumed>) = 3 [pid 624] <... write resumed>) = 18 [pid 625] symlink("/dev/binderfs", "./binderfs" [pid 627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 624] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 626] write(3, "1000", 4 [pid 625] <... symlink resumed>) = 0 [pid 626] <... write resumed>) = 4 [pid 627] <... openat resumed>) = 3 [pid 627] write(3, "1000", 4executing program [pid 626] close(3 [pid 625] write(1, "executing program\n", 18 [pid 624] <... mkdirat resumed>) = 0 [pid 626] <... close resumed>) = 0 [pid 625] <... write resumed>) = 18 [pid 627] <... write resumed>) = 4 [pid 626] symlink("/dev/binderfs", "./binderfs" [pid 625] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 624] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 627] close(3) = 0 [pid 627] symlink("/dev/binderfs", "./binderfs") = 0 [pid 625] <... mkdirat resumed>) = 0 [pid 627] write(1, "executing program\n", 18executing program ) = 18 [pid 624] <... mount resumed>) = 0 [pid 627] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 626] <... symlink resumed>) = 0 [pid 625] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 624] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 626] write(1, "executing program\n", 18 [pid 627] <... mkdirat resumed>) = 0 executing program [pid 625] <... mount resumed>) = 0 [pid 626] <... write resumed>) = 18 [pid 625] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 624] <... openat resumed>) = 3 [pid 627] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 624] exit_group(0 [pid 626] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 624] <... exit_group resumed>) = ? [pid 627] <... mount resumed>) = 0 [pid 625] <... openat resumed>) = 3 [pid 624] +++ exited with 0 +++ [pid 627] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 626] <... mkdirat resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 627] <... openat resumed>) = 3 [pid 626] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 625] exit_group(0 [pid 627] exit_group(0) = ? [pid 625] <... exit_group resumed>) = ? [pid 627] +++ exited with 0 +++ [pid 625] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 626] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 626] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 626] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 626] exit_group(0 [pid 297] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW [pid 626] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 626] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 297] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./79/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./79/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./79/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./79/binderfs2") = 0 [pid 297] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./79/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./79") = 0 [pid 297] mkdir("./80", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 628 attached , child_tidptr=0x5555726b0650) = 628 [pid 628] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 628] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 628] chdir("./80" [pid 300] <... openat resumed>) = 3 [pid 628] <... chdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 628] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 628] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 628] <... setpgid resumed>) = 0 [pid 300] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 628] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 628] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 628] <... write resumed>) = 4 [pid 300] newfstatat(AT_FDCWD, "./81/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 628] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 628] <... close resumed>) = 0 [pid 300] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(3, [pid 628] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 628] <... symlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./81/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... openat resumed>) = 4 executing program [pid 628] write(1, "executing program\n", 18 [pid 300] newfstatat(4, "", [pid 298] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 628] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 628] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 628] <... mkdirat resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./82/binderfs2", [pid 628] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] rmdir("./81/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 628] <... mount resumed>) = 0 [pid 299] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./81/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./82/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./81/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 628] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 628] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] newfstatat(4, "", [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 628] exit_group(0 [pid 300] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 628] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./81/binderfs", [pid 299] <... close resumed>) = 0 [pid 628] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./82/binderfs2" [pid 298] getdents64(4, [pid 300] unlink("./81/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... unlink resumed>) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./81/binderfs2" [pid 300] getdents64(3, [pid 299] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./82/binderfs", [pid 300] close(3) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./82/binderfs" [pid 298] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./81" [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./81/binderfs", [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] unlink("./81/binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./82", 0777 [pid 299] close(3 [pid 298] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./82") = 0 [pid 298] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 299] mkdir("./83", 0777 [pid 298] rmdir("./81" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 629 attached [pid 629] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 629] chdir("./82" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 629 [pid 298] mkdir("./82", 0777./strace-static-x86_64: Process 630 attached [pid 629] <... chdir resumed>) = 0 [pid 630] set_robust_list(0x5555726b0660, 24 [pid 629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 630] <... set_robust_list resumed>) = 0 [pid 629] setpgid(0, 0 [pid 298] <... mkdir resumed>) = 0 [pid 629] <... setpgid resumed>) = 0 [pid 630] chdir("./83" [pid 629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 630] <... chdir resumed>) = 0 [pid 630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 629] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 630 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 630] <... prctl resumed>) = 0 [pid 629] write(3, "1000", 4./strace-static-x86_64: Process 631 attached [pid 630] setpgid(0, 0 [pid 629] <... write resumed>) = 4 [pid 629] close(3) = 0 [pid 629] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 631 [pid 631] set_robust_list(0x5555726b0660, 24 [pid 630] <... setpgid resumed>) = 0 [pid 629] write(1, "executing program\n", 18executing program [pid 630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 629] <... write resumed>) = 18 [pid 297] <... restart_syscall resumed>) = 0 [pid 631] <... set_robust_list resumed>) = 0 [pid 630] <... openat resumed>) = 3 [pid 297] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 631] chdir("./82" [pid 630] write(3, "1000", 4 [pid 629] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 631] <... chdir resumed>) = 0 [pid 631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 630] <... write resumed>) = 4 [pid 629] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 631] <... prctl resumed>) = 0 [pid 630] close(3 [pid 631] setpgid(0, 0 [pid 630] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 630] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 629] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(3, [pid 631] <... setpgid resumed>) = 0 [pid 630] <... symlink resumed>) = 0 [pid 629] <... mount resumed>) = 0 [pid 631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 629] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 631] <... openat resumed>) = 3 [pid 630] write(1, "executing program\n", 18 [pid 297] <... umount2 resumed>) = 0 [pid 630] <... write resumed>) = 18 [pid 631] write(3, "1000", 4 [pid 629] <... openat resumed>) = 3 [pid 629] exit_group(0 [pid 297] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 629] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 630] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 631] <... write resumed>) = 4 [pid 631] close(3 [pid 297] newfstatat(AT_FDCWD, "./80/binderfs2", [pid 631] <... close resumed>) = 0 [pid 630] <... mkdirat resumed>) = 0 [pid 629] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 631] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./80/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./80/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 631] <... symlink resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... openat resumed>) = 4 [pid 630] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 631] write(1, "executing program\n", 18 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./80/binderfs2"executing program ) = 0 [pid 297] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./80/binderfs" [pid 630] <... mount resumed>) = 0 [pid 631] <... write resumed>) = 18 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./80" [pid 631] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 630] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./81", 0777 [pid 631] <... mkdirat resumed>) = 0 [pid 630] <... openat resumed>) = 3 [pid 631] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 630] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 630] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 632 attached [pid 630] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 299] --- 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] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 632] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 632 [pid 632] chdir("./81" [pid 299] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 632] <... chdir resumed>) = 0 [pid 631] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 632] setpgid(0, 0) = 0 [pid 632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, [pid 632] <... openat resumed>) = 3 [pid 632] write(3, "1000", 4) = 4 [pid 299] newfstatat(3, "", [pid 632] close(3) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 631] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 632] write(1, "executing program\n", 18 [pid 299] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 631] <... openat resumed>) = 3 [pid 632] <... write resumed>) = 18 [pid 631] exit_group(0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 632] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 631] <... exit_group resumed>) = ? [pid 300] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 632] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./83/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./83/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", [pid 631] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 632] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(AT_FDCWD, "./82/binderfs2", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 300] openat(AT_FDCWD, "./82/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 632] <... mount resumed>) = 0 [pid 300] newfstatat(4, "", [pid 632] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 632] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 632] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./83/binderfs2" [pid 632] <... exit_group resumed>) = ? [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 632] +++ exited with 0 +++ [pid 300] close(4) = 0 [pid 299] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./82/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./83/binderfs", [pid 300] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./82/binderfs", [pid 299] unlink("./83/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] unlink("./82/binderfs" [pid 297] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] rmdir("./83" [pid 297] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 299] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 297] newfstatat(3, "", [pid 300] <... close resumed>) = 0 [pid 299] mkdir("./84", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./82") = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./83", 0777 [pid 298] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(3, "", [pid 297] <... umount2 resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 633 attached [pid 298] getdents64(3, [pid 297] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 633] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 633] <... set_robust_list resumed>) = 0 [pid 298] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 633 [pid 297] newfstatat(AT_FDCWD, "./81/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./81/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./81/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 634 attached [pid 297] newfstatat(4, "", [pid 634] set_robust_list(0x5555726b0660, 24 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 634] <... set_robust_list resumed>) = 0 [pid 297] getdents64(4, [pid 634] chdir("./83" [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 634] <... chdir resumed>) = 0 [pid 297] getdents64(4, [pid 633] chdir("./84" [pid 634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 634] <... prctl resumed>) = 0 [pid 297] close(4 [pid 634] setpgid(0, 0 [pid 633] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 634 [pid 298] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 633] <... prctl resumed>) = 0 [pid 634] <... setpgid resumed>) = 0 [pid 297] rmdir("./81/binderfs2" [pid 634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 633] setpgid(0, 0 [pid 298] newfstatat(AT_FDCWD, "./82/binderfs2", [pid 297] <... rmdir resumed>) = 0 [pid 634] <... openat resumed>) = 3 [pid 633] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 634] write(3, "1000", 4 [pid 297] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 634] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 634] close(3 [pid 298] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./81/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 634] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./82/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 634] symlink("/dev/binderfs", "./binderfs" [pid 298] <... openat resumed>) = 4 [pid 297] unlink("./81/binderfs" [pid 634] <... symlink resumed>) = 0 [pid 633] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 297] <... unlink resumed>) = 0 [pid 633] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 633] <... write resumed>) = 4 executing program [pid 634] write(1, "executing program\n", 18 [pid 633] close(3 [pid 298] getdents64(4, [pid 297] getdents64(3, [pid 634] <... write resumed>) = 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 634] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 633] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] close(3 [pid 633] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./81" [pid 634] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 634] <... mount resumed>) = 0 [pid 633] <... symlink resumed>) = 0 [pid 298] close(4) = 0 [pid 297] mkdir("./82", 0777 [pid 298] rmdir("./82/binderfs2") = 0 [pid 633] write(1, "executing program\n", 18 [pid 634] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... mkdir resumed>) = 0 executing program [pid 634] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 633] <... write resumed>) = 18 [pid 298] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 634] exit_group(0 [pid 633] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./82/binderfs", [pid 634] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 633] <... mkdirat resumed>) = 0 [pid 298] unlink("./82/binderfs"./strace-static-x86_64: Process 635 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 635 [pid 634] +++ exited with 0 +++ [pid 633] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... unlink resumed>) = 0 [pid 635] set_robust_list(0x5555726b0660, 24 [pid 633] <... mount resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(3, [pid 635] <... set_robust_list resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 633] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... close resumed>) = 0 [pid 633] <... openat resumed>) = 3 [pid 635] chdir("./82" [pid 298] rmdir("./82" [pid 633] exit_group(0) = ? [pid 298] <... rmdir resumed>) = 0 [pid 635] <... chdir resumed>) = 0 [pid 298] mkdir("./83", 0777 [pid 635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... mkdir resumed>) = 0 [pid 635] <... prctl resumed>) = 0 [pid 635] setpgid(0, 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 635] <... setpgid resumed>) = 0 [pid 633] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 636 attached [pid 300] <... restart_syscall resumed>) = 0 [pid 636] set_robust_list(0x5555726b0660, 24 [pid 635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 636 [pid 636] <... set_robust_list resumed>) = 0 [pid 300] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 636] chdir("./83" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 635] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 636] <... chdir resumed>) = 0 [pid 635] write(3, "1000", 4 [pid 300] <... openat resumed>) = 3 [pid 636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 635] <... write resumed>) = 4 [pid 300] newfstatat(3, "", [pid 635] close(3 [pid 636] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 636] setpgid(0, 0 [pid 635] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 635] symlink("/dev/binderfs", "./binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 636] <... setpgid resumed>) = 0 [pid 300] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 636] write(3, "1000", 4executing program [pid 635] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 636] <... write resumed>) = 4 [pid 635] write(1, "executing program\n", 18 [pid 636] close(3 [pid 635] <... write resumed>) = 18 [pid 636] <... close resumed>) = 0 [pid 636] symlink("/dev/binderfs", "./binderfs" [pid 635] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./83/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./83/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 636] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 635] <... mkdirat resumed>) = 0 [pid 300] close(4executing program [pid 636] write(1, "executing program\n", 18) = 18 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./83/binderfs2" [pid 636] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 636] <... mkdirat resumed>) = 0 [pid 635] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./83/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./83") = 0 [pid 635] <... mount resumed>) = 0 [pid 300] mkdir("./84", 0777 [pid 636] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 635] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 636] <... mount resumed>) = 0 [pid 635] <... openat resumed>) = 3 ./strace-static-x86_64: Process 637 attached [pid 637] set_robust_list(0x5555726b0660, 24) = 0 [pid 637] chdir("./84" [pid 635] exit_group(0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 637 [pid 636] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 635] <... exit_group resumed>) = ? [pid 637] <... chdir resumed>) = 0 [pid 637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 636] <... openat resumed>) = 3 [pid 637] setpgid(0, 0) = 0 [pid 637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 637] write(3, "1000", 4) = 4 [pid 637] close(3) = 0 [pid 637] symlink("/dev/binderfs", "./binderfs" [pid 299] <... restart_syscall resumed>) = 0 [pid 637] <... symlink resumed>) = 0 [pid 635] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 636] exit_group(0) = ? executing program [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 637] write(1, "executing program\n", 18 [pid 299] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 637] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 637] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 637] <... mkdirat resumed>) = 0 [pid 636] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 637] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 637] <... mount resumed>) = 0 [pid 298] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 637] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 637] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 298] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 299] newfstatat(AT_FDCWD, "./84/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./84/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 637] exit_group(0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = 0 [pid 637] <... exit_group resumed>) = ? [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 298] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4) = 0 [pid 298] newfstatat(AT_FDCWD, "./83/binderfs2", [pid 299] rmdir("./84/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 637] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./83/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./84/binderfs", [pid 298] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./84/binderfs" [pid 298] getdents64(4, [pid 299] <... unlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 298] close(4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 299] close(3) = 0 [pid 298] rmdir("./83/binderfs2" [pid 299] rmdir("./84" [pid 298] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./85", 0777 [pid 298] newfstatat(AT_FDCWD, "./83/binderfs", [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] unlink("./83/binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./83"./strace-static-x86_64: Process 638 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 638 [pid 297] <... openat resumed>) = 3 [pid 300] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 638] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 638] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] mkdir("./84", 0777 [pid 638] chdir("./85" [pid 300] newfstatat(3, "", [pid 298] <... mkdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 638] <... chdir resumed>) = 0 [pid 297] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 638] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 639 attached [pid 639] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = 0 [pid 639] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 639 [pid 639] chdir("./84" [pid 638] <... prctl resumed>) = 0 [pid 638] setpgid(0, 0 [pid 639] <... chdir resumed>) = 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 [pid 300] <... umount2 resumed>) = 0 [pid 638] <... setpgid resumed>) = 0 [pid 297] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 639] <... openat resumed>) = 3 [pid 639] write(3, "1000", 4) = 4 [pid 639] close(3) = 0 [pid 639] symlink("/dev/binderfs", "./binderfs") = 0 [pid 639] write(1, "executing program\n", 18 executing program [pid 638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 639] <... write resumed>) = 18 [pid 639] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 638] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./82/binderfs2", [pid 639] <... mkdirat resumed>) = 0 [pid 639] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 638] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./84/binderfs2", [pid 638] <... write resumed>) = 4 [pid 297] umount2("./82/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 638] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 638] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 638] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./82/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 639] <... mount resumed>) = 0 [pid 638] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 638] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./84/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 638] <... write resumed>) = 18 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 638] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] getdents64(4, [pid 639] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 300] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", [pid 297] close(4 [pid 639] <... openat resumed>) = 3 [pid 639] exit_group(0) = ? [pid 638] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] rmdir("./82/binderfs2" [pid 639] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... rmdir resumed>) = 0 [pid 638] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./82/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./82") = 0 [pid 297] mkdir("./83", 0777 [pid 638] <... mount resumed>) = 0 [pid 300] close(4) = 0 [pid 638] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./84/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 640 attached [pid 640] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 640 [pid 640] <... set_robust_list resumed>) = 0 [pid 640] chdir("./83") = 0 [pid 640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 638] <... openat resumed>) = 3 [pid 300] unlink("./84/binderfs" [pid 640] <... prctl resumed>) = 0 [pid 640] setpgid(0, 0) = 0 [pid 300] <... unlink resumed>) = 0 [pid 640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 638] exit_group(0 [pid 300] getdents64(3, [pid 640] <... openat resumed>) = 3 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 638] <... exit_group resumed>) = ? [pid 300] close(3) = 0 [pid 300] rmdir("./84" [pid 640] write(3, "1000", 4) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 640] close(3 [pid 298] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 640] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 638] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 298] newfstatat(3, "", [pid 640] write(1, "executing program\n", 18 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 640] <... write resumed>) = 18 [pid 298] getdents64(3, [pid 640] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] mkdir("./85", 0777 [pid 298] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 640] <... mkdirat resumed>) = 0 [pid 640] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 640] <... mount resumed>) = 0 [pid 640] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 640] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 641 attached [pid 640] <... exit_group resumed>) = ? [pid 641] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 641 [pid 298] newfstatat(AT_FDCWD, "./84/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 640] +++ exited with 0 +++ [pid 641] <... set_robust_list resumed>) = 0 [pid 298] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 641] chdir("./85" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 641] <... chdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./84/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... openat resumed>) = 4 [pid 641] <... prctl resumed>) = 0 [pid 641] setpgid(0, 0 [pid 298] newfstatat(4, "", [pid 641] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(4, [pid 641] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 641] write(3, "1000", 4) = 4 [pid 641] close(3) = 0 [pid 641] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, executing program [pid 641] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 641] write(1, "executing program\n", 18 [pid 298] close(4 [pid 641] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 641] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] rmdir("./84/binderfs2") = 0 [pid 641] <... mkdirat resumed>) = 0 [pid 641] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 641] <... mount resumed>) = 0 [pid 298] unlink("./84/binderfs" [pid 641] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... unlink resumed>) = 0 [pid 641] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 641] exit_group(0) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./84") = 0 [pid 298] mkdir("./85", 0777) = 0 [pid 641] +++ exited with 0 +++ [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 642 attached [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 642 [pid 642] set_robust_list(0x5555726b0660, 24 [pid 300] <... restart_syscall resumed>) = 0 [pid 642] <... set_robust_list resumed>) = 0 [pid 642] chdir("./85" [pid 297] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 642] <... chdir resumed>) = 0 [pid 300] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 642] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 642] setpgid(0, 0 [pid 299] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 299] getdents64(3, [pid 300] <... openat resumed>) = 3 [pid 642] <... setpgid resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 642] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 642] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./83/binderfs2", [pid 642] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./83/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./83/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 642] close(3 [pid 299] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 642] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 642] symlink("/dev/binderfs", "./binderfs" [pid 299] newfstatat(AT_FDCWD, "./85/binderfs2", [pid 297] newfstatat(4, "", [pid 642] <... symlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 642] write(1, "executing program\n", 18 [pid 299] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 642] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./85/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] close(4) = 0 [pid 642] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] rmdir("./83/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./83/binderfs", [pid 642] <... mkdirat resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./83/binderfs" [pid 299] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./85/binderfs2", [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./85/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./83") = 0 [pid 297] mkdir("./84", 0777 [pid 642] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] rmdir("./85/binderfs2" [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 642] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 299] newfstatat(AT_FDCWD, "./85/binderfs", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./85/binderfs2" [pid 299] unlink("./85/binderfs" [pid 642] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 643 attached [pid 299] getdents64(3, [pid 300] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 643 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 643] set_robust_list(0x5555726b0660, 24 [pid 642] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 643] <... set_robust_list resumed>) = 0 [pid 642] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./85/binderfs", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./85" [pid 643] chdir("./84") = 0 [pid 643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 643] setpgid(0, 0 [pid 642] +++ exited with 0 +++ [pid 643] <... setpgid resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 643] <... openat resumed>) = 3 [pid 300] unlink("./85/binderfs" [pid 643] write(3, "1000", 4) = 4 [pid 643] close(3 [pid 300] <... unlink resumed>) = 0 [pid 299] mkdir("./86", 0777 [pid 643] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 643] symlink("/dev/binderfs", "./binderfs") = 0 [pid 643] write(1, "executing program\n", 18 [pid 299] <... mkdir resumed>) = 0 executing program [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 643] <... write resumed>) = 18 [pid 643] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./85" [pid 643] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 643] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 644 attached [pid 300] mkdir("./86", 0777 [pid 643] <... mount resumed>) = 0 [pid 644] set_robust_list(0x5555726b0660, 24) = 0 [pid 643] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 644 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 644] chdir("./86" [pid 643] <... openat resumed>) = 3 [pid 644] <... chdir resumed>) = 0 [pid 644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 643] exit_group(0./strace-static-x86_64: Process 645 attached [pid 644] <... prctl resumed>) = 0 [pid 645] set_robust_list(0x5555726b0660, 24 [pid 644] setpgid(0, 0 [pid 643] <... exit_group resumed>) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 645 [pid 645] <... set_robust_list resumed>) = 0 [pid 644] <... setpgid resumed>) = 0 [pid 645] chdir("./86") = 0 [pid 645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 645] setpgid(0, 0) = 0 [pid 645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 643] +++ exited with 0 +++ [pid 645] <... openat resumed>) = 3 [pid 297] --- 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] write(3, "1000", 4 [pid 644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 645] <... write resumed>) = 4 [pid 645] close(3) = 0 [pid 644] <... openat resumed>) = 3 [pid 645] symlink("/dev/binderfs", "./binderfs"executing program [pid 644] write(3, "1000", 4 [pid 645] <... symlink resumed>) = 0 [pid 644] <... write resumed>) = 4 [pid 645] write(1, "executing program\n", 18 [pid 644] close(3 [pid 645] <... write resumed>) = 18 [pid 644] <... close resumed>) = 0 [pid 645] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 645] <... mkdirat resumed>) = 0 [pid 645] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 644] write(1, "executing program\n", 18executing program ) = 18 [pid 644] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 645] <... mount resumed>) = 0 [pid 645] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 645] <... openat resumed>) = 3 [pid 644] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 645] exit_group(0) = ? [pid 644] <... mount resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 644] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... openat resumed>) = 3 [pid 645] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 644] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 644] exit_group(0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 3 [pid 644] <... exit_group resumed>) = ? [pid 298] getdents64(3, [pid 297] newfstatat(3, "", [pid 644] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(3, [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./85/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./85/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(4, "", [pid 297] newfstatat(AT_FDCWD, "./84/binderfs2", [pid 300] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./84/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 297] openat(AT_FDCWD, "./84/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./86/binderfs2", [pid 298] rmdir("./85/binderfs2" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./86/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./86/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 300] openat(AT_FDCWD, "./86/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] close(4 [pid 300] newfstatat(4, "", [pid 299] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] rmdir("./84/binderfs2" [pid 299] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./85/binderfs", [pid 300] close(4 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] rmdir("./86/binderfs2" [pid 298] unlink("./85/binderfs" [pid 300] rmdir("./86/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./84/binderfs", [pid 300] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./85" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./86/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./86/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] unlink("./84/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./86/binderfs" [pid 298] mkdir("./86", 0777 [pid 297] <... unlink resumed>) = 0 [pid 300] unlink("./86/binderfs" [pid 299] <... unlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 297] close(3 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] rmdir("./84" [pid 300] close(3 [pid 299] <... close resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 299] rmdir("./86" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./86" [pid 299] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 646 attached [pid 300] <... rmdir resumed>) = 0 [pid 297] mkdir("./85", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 646 [pid 646] set_robust_list(0x5555726b0660, 24 [pid 299] mkdir("./87", 0777 [pid 646] <... set_robust_list resumed>) = 0 [pid 646] chdir("./86" [pid 300] mkdir("./87", 0777 [pid 646] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 646] setpgid(0, 0) = 0 [pid 646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 646] <... openat resumed>) = 3 [pid 646] write(3, "1000", 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 648 attached ./strace-static-x86_64: Process 647 attached ./strace-static-x86_64: Process 649 attached [pid 646] <... write resumed>) = 4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 647 [pid 648] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 648 [pid 647] set_robust_list(0x5555726b0660, 24 [pid 646] close(3 [pid 649] set_robust_list(0x5555726b0660, 24 [pid 648] <... set_robust_list resumed>) = 0 [pid 647] <... set_robust_list resumed>) = 0 [pid 649] <... set_robust_list resumed>) = 0 [pid 646] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 649 [pid 648] chdir("./87" [pid 647] chdir("./87" [pid 649] chdir("./85") = 0 [pid 648] <... chdir resumed>) = 0 [pid 647] <... chdir resumed>) = 0 [pid 646] symlink("/dev/binderfs", "./binderfs" [pid 649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 646] <... symlink resumed>) = 0 [pid 649] <... prctl resumed>) = 0 [pid 648] <... prctl resumed>) = 0 [pid 647] <... prctl resumed>) = 0 [pid 648] setpgid(0, 0 [pid 647] setpgid(0, 0 [pid 648] <... setpgid resumed>) = 0 [pid 649] setpgid(0, 0 [pid 647] <... setpgid resumed>) = 0 [pid 648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 649] <... setpgid resumed>) = 0 [pid 646] write(1, "executing program\n", 18 [pid 648] <... openat resumed>) = 3 [pid 649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 646] <... write resumed>) = 18 [pid 648] write(3, "1000", 4 [pid 646] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 647] <... openat resumed>) = 3 [pid 649] <... openat resumed>) = 3 [pid 648] <... write resumed>) = 4 [pid 648] close(3 [pid 647] write(3, "1000", 4 [pid 649] write(3, "1000", 4 [pid 646] <... mkdirat resumed>) = 0 [pid 649] <... write resumed>) = 4 [pid 648] <... close resumed>) = 0 [pid 647] <... write resumed>) = 4 [pid 649] close(3 [pid 648] symlink("/dev/binderfs", "./binderfs" [pid 647] close(3 [pid 646] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 649] <... close resumed>) = 0 [pid 649] symlink("/dev/binderfs", "./binderfs" [pid 647] <... close resumed>) = 0 [pid 649] <... symlink resumed>) = 0 [pid 647] symlink("/dev/binderfs", "./binderfs" [pid 646] <... mount resumed>) = 0 [pid 648] <... symlink resumed>) = 0 executing program executing program [pid 649] write(1, "executing program\n", 18 [pid 648] write(1, "executing program\n", 18 [pid 647] <... symlink resumed>) = 0 [pid 646] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLYexecuting program [pid 649] <... write resumed>) = 18 [pid 648] <... write resumed>) = 18 [pid 647] write(1, "executing program\n", 18) = 18 [pid 648] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 649] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 647] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 649] <... mkdirat resumed>) = 0 [pid 648] <... mkdirat resumed>) = 0 [pid 649] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 648] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 647] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 646] <... openat resumed>) = 3 [pid 646] exit_group(0) = ? [pid 648] <... mount resumed>) = 0 [pid 646] +++ exited with 0 +++ [pid 649] <... mount resumed>) = 0 [pid 647] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 648] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 649] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 648] <... openat resumed>) = 3 [pid 647] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 649] <... openat resumed>) = 3 [pid 648] exit_group(0) = ? [pid 647] <... openat resumed>) = 3 [pid 649] exit_group(0) = ? [pid 647] exit_group(0) = ? [pid 647] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 648] +++ exited with 0 +++ [pid 649] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./86/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(3, "", [pid 298] openat(AT_FDCWD, "./86/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 299] newfstatat(3, "", [pid 297] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] getdents64(4, [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, [pid 299] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] close(4 [pid 297] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./86/binderfs2" [pid 300] newfstatat(AT_FDCWD, "./87/binderfs2", [pid 299] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./87/binderfs2", [pid 297] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./87/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./85/binderfs2", [pid 300] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./87/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./86/binderfs", [pid 297] umount2("./85/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] unlink("./86/binderfs" [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./85/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] close(4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 297] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./87/binderfs2" [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 298] close(3 [pid 299] rmdir("./87/binderfs2" [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./86" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./87/binderfs", [pid 299] newfstatat(AT_FDCWD, "./87/binderfs", [pid 297] rmdir("./85/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./87", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] unlink("./87/binderfs" [pid 299] unlink("./87/binderfs" [pid 300] <... unlink resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] newfstatat(AT_FDCWD, "./85/binderfs", [pid 300] close(3 [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 650 attached [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./87" [pid 299] rmdir("./87" [pid 297] unlink("./85/binderfs" [pid 650] set_robust_list(0x5555726b0660, 24 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 650] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./88", 0777 [pid 297] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 650 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 650] chdir("./87") = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] mkdir("./88", 0777 [pid 297] close(3 [pid 650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./85" [pid 650] setpgid(0, 0 [pid 297] <... rmdir resumed>) = 0 [pid 650] <... setpgid resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 651 attached [pid 297] mkdir("./86", 0777 [pid 651] set_robust_list(0x5555726b0660, 24 [pid 650] write(3, "1000", 4 [pid 297] <... mkdir resumed>) = 0 [pid 651] <... set_robust_list resumed>) = 0 [pid 650] <... write resumed>) = 4 [pid 651] chdir("./88" [pid 650] close(3./strace-static-x86_64: Process 652 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 651 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 652] set_robust_list(0x5555726b0660, 24 [pid 651] <... chdir resumed>) = 0 [pid 650] <... close resumed>) = 0 ./strace-static-x86_64: Process 653 attached [pid 652] <... set_robust_list resumed>) = 0 [pid 651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 650] symlink("/dev/binderfs", "./binderfs" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 652 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 653 [pid 650] <... symlink resumed>) = 0 [pid 651] <... prctl resumed>) = 0 [pid 653] set_robust_list(0x5555726b0660, 24 [pid 652] chdir("./88"executing program [pid 651] setpgid(0, 0 [pid 650] write(1, "executing program\n", 18 [pid 653] <... set_robust_list resumed>) = 0 [pid 651] <... setpgid resumed>) = 0 [pid 653] chdir("./86" [pid 651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 650] <... write resumed>) = 18 [pid 653] <... chdir resumed>) = 0 [pid 652] <... chdir resumed>) = 0 [pid 650] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 650] <... mkdirat resumed>) = 0 [pid 651] <... openat resumed>) = 3 [pid 653] <... prctl resumed>) = 0 [pid 652] <... prctl resumed>) = 0 [pid 651] write(3, "1000", 4 [pid 652] setpgid(0, 0 [pid 650] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 653] setpgid(0, 0 [pid 652] <... setpgid resumed>) = 0 [pid 651] <... write resumed>) = 4 [pid 653] <... setpgid resumed>) = 0 [pid 652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 651] close(3 [pid 652] <... openat resumed>) = 3 [pid 651] <... close resumed>) = 0 executing program [pid 651] symlink("/dev/binderfs", "./binderfs") = 0 [pid 653] <... openat resumed>) = 3 [pid 653] write(3, "1000", 4 [pid 652] write(3, "1000", 4 [pid 651] write(1, "executing program\n", 18 [pid 650] <... mount resumed>) = 0 [pid 653] <... write resumed>) = 4 [pid 652] <... write resumed>) = 4 [pid 651] <... write resumed>) = 18 [pid 653] close(3 [pid 652] close(3 [pid 651] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 650] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 653] <... close resumed>) = 0 [pid 652] <... close resumed>) = 0 [pid 653] symlink("/dev/binderfs", "./binderfs" [pid 652] symlink("/dev/binderfs", "./binderfs" [pid 653] <... symlink resumed>) = 0 [pid 652] <... symlink resumed>) = 0 [pid 650] <... openat resumed>) = 3 executing program [pid 653] write(1, "executing program\n", 18executing program [pid 652] write(1, "executing program\n", 18 [pid 653] <... write resumed>) = 18 [pid 652] <... write resumed>) = 18 [pid 650] exit_group(0 [pid 651] <... mkdirat resumed>) = 0 [pid 653] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 651] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 652] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 650] <... exit_group resumed>) = ? [pid 650] +++ exited with 0 +++ [pid 653] <... mkdirat resumed>) = 0 [pid 652] <... mkdirat resumed>) = 0 [pid 651] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 653] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 652] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 653] <... mount resumed>) = 0 [pid 652] <... mount resumed>) = 0 [pid 652] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 651] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 653] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 651] <... openat resumed>) = 3 [pid 652] <... openat resumed>) = 3 [pid 651] exit_group(0 [pid 653] exit_group(0 [pid 651] <... exit_group resumed>) = ? [pid 652] exit_group(0 [pid 653] <... exit_group resumed>) = ? [pid 652] <... exit_group resumed>) = ? [pid 651] +++ exited with 0 +++ [pid 653] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 652] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 298] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./87/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./87/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(3, "", [pid 300] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 298] getdents64(4, [pid 300] <... umount2 resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] close(4 [pid 297] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./87/binderfs2") = 0 [pid 299] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./88/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./88/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 299] newfstatat(3, "", [pid 298] newfstatat(AT_FDCWD, "./87/binderfs", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./86/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 299] getdents64(3, [pid 298] unlink("./87/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./86/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 297] openat(AT_FDCWD, "./86/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] close(4 [pid 297] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./88/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./88/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] close(3 [pid 297] close(4 [pid 300] unlink("./88/binderfs" [pid 297] <... close resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./87" [pid 297] rmdir("./86/binderfs2" [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./88", 0777 [pid 299] newfstatat(AT_FDCWD, "./88/binderfs2", [pid 300] close(3) = 0 [pid 300] rmdir("./88") = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./88/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./89", 0777 [pid 297] newfstatat(AT_FDCWD, "./86/binderfs", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./86/binderfs"./strace-static-x86_64: Process 654 attached [pid 299] newfstatat(4, "", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 654 [pid 297] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 654] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(4, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(3, ./strace-static-x86_64: Process 655 attached [pid 654] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./86" [pid 655] set_robust_list(0x5555726b0660, 24 [pid 654] chdir("./88" [pid 299] getdents64(4, [pid 655] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 655 [pid 655] chdir("./89" [pid 654] <... chdir resumed>) = 0 [pid 299] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 655] <... chdir resumed>) = 0 [pid 654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./88/binderfs2" [pid 297] mkdir("./87", 0777 [pid 655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 654] <... prctl resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 655] <... prctl resumed>) = 0 [pid 654] setpgid(0, 0 [pid 655] setpgid(0, 0 [pid 654] <... setpgid resumed>) = 0 [pid 299] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 655] <... setpgid resumed>) = 0 [pid 654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... mkdir resumed>) = 0 [pid 655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./88/binderfs", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 654] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 655] <... openat resumed>) = 3 [pid 654] write(3, "1000", 4 [pid 299] unlink("./88/binderfs" [pid 655] write(3, "1000", 4 [pid 654] <... write resumed>) = 4 [pid 299] <... unlink resumed>) = 0 [pid 655] <... write resumed>) = 4 [pid 654] close(3./strace-static-x86_64: Process 656 attached [pid 655] close(3 [pid 654] <... close resumed>) = 0 [pid 655] <... close resumed>) = 0 [pid 654] symlink("/dev/binderfs", "./binderfs" [pid 655] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(3, [pid 656] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 656 [pid 656] <... set_robust_list resumed>) = 0 [pid 654] <... symlink resumed>) = 0 [pid 656] chdir("./87") = 0 [pid 656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 656] setpgid(0, 0) = 0 [pid 656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 656] write(3, "1000", 4 [pid 655] <... symlink resumed>) = 0 [pid 656] <... write resumed>) = 4 [pid 656] close(3) = 0 [pid 656] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 655] write(1, "executing program\n", 18 [pid 654] write(1, "executing program\n", 18executing program executing program [pid 299] close(3 [pid 655] <... write resumed>) = 18 [pid 654] <... write resumed>) = 18 [pid 299] <... close resumed>) = 0 [pid 656] <... symlink resumed>) = 0 executing program [pid 655] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 654] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] rmdir("./88" [pid 656] write(1, "executing program\n", 18) = 18 [pid 656] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 656] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 654] <... mkdirat resumed>) = 0 [pid 655] <... mkdirat resumed>) = 0 [pid 299] mkdir("./89", 0777 [pid 656] <... mount resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 655] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 654] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 656] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 656] exit_group(0) = ? [pid 655] <... mount resumed>) = 0 [pid 656] +++ exited with 0 +++ [pid 654] <... mount resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 655] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 654] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY./strace-static-x86_64: Process 657 attached [pid 655] <... openat resumed>) = 3 [pid 654] <... openat resumed>) = 3 [pid 657] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 657 [pid 655] exit_group(0 [pid 654] exit_group(0 [pid 655] <... exit_group resumed>) = ? [pid 657] <... set_robust_list resumed>) = 0 [pid 654] <... exit_group resumed>) = ? [pid 657] chdir("./89" [pid 655] +++ exited with 0 +++ [pid 654] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 657] <... chdir resumed>) = 0 [pid 657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 657] <... prctl resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 657] setpgid(0, 0) = 0 [pid 657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 657] <... openat resumed>) = 3 [pid 300] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 657] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 657] <... write resumed>) = 4 [pid 300] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 657] close(3 [pid 298] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 657] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 657] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 657] <... symlink resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 657] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 300] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 657] <... write resumed>) = 18 [pid 657] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 657] <... mkdirat resumed>) = 0 [pid 298] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 657] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(AT_FDCWD, "./89/binderfs2", [pid 297] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(3, "", [pid 300] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] openat(AT_FDCWD, "./89/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... openat resumed>) = 4 [pid 297] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 657] <... mount resumed>) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 657] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 657] <... openat resumed>) = 3 [pid 300] close(4 [pid 298] newfstatat(AT_FDCWD, "./88/binderfs2", [pid 297] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 657] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 657] <... exit_group resumed>) = ? [pid 300] rmdir("./89/binderfs2" [pid 298] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./87/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./87/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./87/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 657] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 300] newfstatat(AT_FDCWD, "./89/binderfs", [pid 297] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./88/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] unlink("./89/binderfs" [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 300] <... unlink resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./88/binderfs2" [pid 300] getdents64(3, [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(4 [pid 298] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./88/binderfs" [pid 300] rmdir("./89" [pid 299] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 299] newfstatat(3, "", [pid 297] rmdir("./87/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./88" [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] mkdir("./89", 0777 [pid 299] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 300] mkdir("./90", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./87/binderfs", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 658 attached [pid 297] unlink("./87/binderfs" [pid 658] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 658 [pid 297] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 658] <... set_robust_list resumed>) = 0 [pid 658] chdir("./89" [pid 299] newfstatat(AT_FDCWD, "./89/binderfs2", [pid 297] getdents64(3, [pid 658] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 659 attached [pid 658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 659 [pid 658] setpgid(0, 0) = 0 [pid 299] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 658] write(3, "1000", 4) = 4 [pid 658] close(3) = 0 [pid 658] symlink("/dev/binderfs", "./binderfs" [pid 297] <... close resumed>) = 0 executing program [pid 659] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./87" [pid 659] <... set_robust_list resumed>) = 0 [pid 299] openat(AT_FDCWD, "./89/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 658] <... symlink resumed>) = 0 [pid 658] write(1, "executing program\n", 18) = 18 [pid 297] <... rmdir resumed>) = 0 [pid 658] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... openat resumed>) = 4 [pid 659] chdir("./90" [pid 658] <... mkdirat resumed>) = 0 [pid 297] mkdir("./88", 0777 [pid 659] <... chdir resumed>) = 0 [pid 299] newfstatat(4, "", [pid 659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 659] <... prctl resumed>) = 0 [pid 299] getdents64(4, [pid 658] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 659] setpgid(0, 0 [pid 297] <... mkdir resumed>) = 0 [pid 659] <... setpgid resumed>) = 0 [pid 299] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 660 attached [pid 659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 658] <... mount resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 660] set_robust_list(0x5555726b0660, 24 [pid 659] <... openat resumed>) = 3 [pid 299] close(4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 660 [pid 660] <... set_robust_list resumed>) = 0 [pid 659] write(3, "1000", 4 [pid 299] <... close resumed>) = 0 [pid 660] chdir("./88" [pid 659] <... write resumed>) = 4 [pid 658] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] rmdir("./89/binderfs2" [pid 660] <... chdir resumed>) = 0 [pid 659] close(3 [pid 658] <... openat resumed>) = 3 [pid 660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... rmdir resumed>) = 0 [pid 660] <... prctl resumed>) = 0 [pid 659] <... close resumed>) = 0 [pid 299] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 660] setpgid(0, 0 [pid 659] symlink("/dev/binderfs", "./binderfs" [pid 660] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 659] <... symlink resumed>) = 0 [pid 658] exit_group(0 [pid 660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 659] write(1, "executing program\n", 18 [pid 658] <... exit_group resumed>) = ? [pid 299] newfstatat(AT_FDCWD, "./89/binderfs", [pid 660] <... openat resumed>) = 3 [pid 659] <... write resumed>) = 18 [pid 658] +++ exited with 0 +++ [pid 660] write(3, "1000", 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 660] <... write resumed>) = 4 [pid 659] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 660] close(3 [pid 299] unlink("./89/binderfs" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 660] <... close resumed>) = 0 [pid 659] <... mkdirat resumed>) = 0 [pid 660] symlink("/dev/binderfs", "./binderfs" [pid 659] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... unlink resumed>) = 0 [pid 660] <... symlink resumed>) = 0 [pid 298] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 executing program [pid 298] newfstatat(3, "", [pid 660] write(1, "executing program\n", 18 [pid 659] <... mount resumed>) = 0 [pid 299] getdents64(3, [pid 660] <... write resumed>) = 18 [pid 659] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3 [pid 298] getdents64(3, [pid 660] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 659] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] rmdir("./89" [pid 298] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 659] exit_group(0 [pid 298] <... umount2 resumed>) = 0 [pid 660] <... mkdirat resumed>) = 0 [pid 659] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./90", 0777 [pid 298] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./89/binderfs2", [pid 660] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 659] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=659, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./89/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 660] <... mount resumed>) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 660] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(4, [pid 660] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./89/binderfs2"./strace-static-x86_64: Process 661 attached [pid 660] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 660] <... exit_group resumed>) = ? [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 661 [pid 298] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./89/binderfs" [pid 660] +++ exited with 0 +++ [pid 298] <... unlink resumed>) = 0 [pid 661] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 661] chdir("./90") = 0 [pid 298] close(3 [pid 661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] <... close resumed>) = 0 [pid 661] setpgid(0, 0 [pid 298] rmdir("./89" [pid 661] <... setpgid resumed>) = 0 [pid 661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 661] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 661] write(3, "1000", 4 [pid 300] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 661] <... write resumed>) = 4 [pid 300] <... openat resumed>) = 3 [pid 298] mkdir("./90", 0777 [pid 661] close(3 [pid 300] newfstatat(3, "", [pid 661] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 661] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(3, [pid 661] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 661] write(1, "executing program\n", 18 [pid 300] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 661] <... write resumed>) = 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 662 attached [pid 661] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 662] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 662] <... set_robust_list resumed>) = 0 [pid 661] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 662] chdir("./90" [pid 300] newfstatat(AT_FDCWD, "./90/binderfs2", [pid 661] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 662] <... chdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 662 [pid 300] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 661] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./90/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 662] <... prctl resumed>) = 0 [pid 661] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 4 [pid 662] setpgid(0, 0 [pid 661] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 662] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 661] exit_group(0 [pid 300] getdents64(4, [pid 662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 661] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./90/binderfs2" [pid 662] <... openat resumed>) = 3 [pid 661] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 662] write(3, "1000", 4) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 662] close(3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 662] <... close resumed>) = 0 [pid 300] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 662] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./90/binderfs", [pid 299] <... restart_syscall resumed>) = 0 [pid 662] <... symlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 662] write(1, "executing program\n", 18executing program ) = 18 [pid 300] unlink("./90/binderfs" [pid 297] <... openat resumed>) = 3 [pid 662] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 662] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 662] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(3) = 0 [pid 297] getdents64(3, [pid 300] rmdir("./90") = 0 [pid 662] <... mount resumed>) = 0 [pid 300] mkdir("./91", 0777 [pid 299] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 662] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 3 [pid 297] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 662] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 297] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 662] exit_group(0 [pid 299] getdents64(3, [pid 297] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 662] <... exit_group resumed>) = ? [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 663 attached [pid 662] +++ exited with 0 +++ [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 663 [pid 299] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./88/binderfs2", [pid 663] set_robust_list(0x5555726b0660, 24 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 663] <... set_robust_list resumed>) = 0 [pid 663] chdir("./91" [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./88/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 663] <... chdir resumed>) = 0 [pid 299] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 663] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./88/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 663] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./90/binderfs2", [pid 297] <... openat resumed>) = 4 [pid 663] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(4, "", [pid 663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 663] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 663] write(3, "1000", 4 [pid 299] openat(AT_FDCWD, "./90/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 663] <... write resumed>) = 4 [pid 663] close(3 [pid 299] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 663] <... close resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 663] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] newfstatat(3, "", [pid 663] <... symlink resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 663] write(1, "executing program\n", 18executing program [pid 298] getdents64(3, [pid 663] <... write resumed>) = 18 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] close(4 [pid 298] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 663] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 663] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./88/binderfs2" [pid 298] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 663] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./90/binderfs2", [pid 299] rmdir("./90/binderfs2" [pid 297] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 663] <... mount resumed>) = 0 [pid 299] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./90/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./88/binderfs", [pid 663] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 663] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./90/binderfs", [pid 298] newfstatat(4, "", [pid 297] unlink("./88/binderfs" [pid 663] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 663] <... exit_group resumed>) = ? [pid 299] unlink("./90/binderfs" [pid 298] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... unlink resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./90/binderfs2" [pid 663] +++ exited with 0 +++ [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 300] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./90" [pid 298] newfstatat(AT_FDCWD, "./90/binderfs", [pid 300] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./88" [pid 300] <... openat resumed>) = 3 [pid 298] unlink("./90/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] mkdir("./91", 0777 [pid 297] mkdir("./89", 0777 [pid 300] newfstatat(3, "", [pid 298] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... mkdir resumed>) = 0 [pid 300] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3./strace-static-x86_64: Process 664 attached [pid 300] <... umount2 resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./90"./strace-static-x86_64: Process 665 attached [pid 664] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 664 [pid 298] <... rmdir resumed>) = 0 [pid 664] <... set_robust_list resumed>) = 0 [pid 665] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 665 [pid 665] <... set_robust_list resumed>) = 0 [pid 664] chdir("./91" [pid 300] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./91", 0777 [pid 665] chdir("./89" [pid 664] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 665] <... chdir resumed>) = 0 [pid 664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 664] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./91/binderfs2", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 665] <... prctl resumed>) = 0 [pid 664] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 665] setpgid(0, 0 [pid 664] <... setpgid resumed>) = 0 [pid 300] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 666 attached [pid 665] <... setpgid resumed>) = 0 [pid 664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 666] set_robust_list(0x5555726b0660, 24 [pid 300] openat(AT_FDCWD, "./91/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 666] <... set_robust_list resumed>) = 0 [pid 665] <... openat resumed>) = 3 [pid 664] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 666] chdir("./91" [pid 665] write(3, "1000", 4 [pid 664] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 666 [pid 666] <... chdir resumed>) = 0 [pid 665] <... write resumed>) = 4 [pid 664] <... write resumed>) = 4 [pid 666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 665] close(3 [pid 666] <... prctl resumed>) = 0 [pid 664] close(3 [pid 665] <... close resumed>) = 0 [pid 666] setpgid(0, 0 [pid 665] symlink("/dev/binderfs", "./binderfs" [pid 664] <... close resumed>) = 0 [pid 666] <... setpgid resumed>) = 0 executing program [pid 665] <... symlink resumed>) = 0 [pid 664] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(4, [pid 666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 665] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 666] <... openat resumed>) = 3 [pid 665] <... write resumed>) = 18 [pid 664] <... symlink resumed>) = 0 [pid 300] getdents64(4, [pid 666] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 666] <... write resumed>) = 4 [pid 665] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 664] write(1, "executing program\n", 18 [pid 300] close(4 [pid 666] close(3 [pid 664] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 666] <... close resumed>) = 0 [pid 664] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./91/binderfs2" [pid 666] symlink("/dev/binderfs", "./binderfs" [pid 665] <... mkdirat resumed>) = 0 [pid 664] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 666] <... symlink resumed>) = 0 [pid 665] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 664] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 666] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./91/binderfs" [pid 665] <... mount resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 executing program [pid 300] close(3) = 0 [pid 664] <... mount resumed>) = 0 [pid 666] <... write resumed>) = 18 [pid 665] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 666] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./91" [pid 666] <... mkdirat resumed>) = 0 [pid 665] <... openat resumed>) = 3 [pid 664] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 665] exit_group(0 [pid 664] <... openat resumed>) = 3 [pid 666] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 665] <... exit_group resumed>) = ? [pid 300] mkdir("./92", 0777) = 0 [pid 666] <... mount resumed>) = 0 [pid 664] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 667 attached [pid 665] +++ exited with 0 +++ [pid 664] <... exit_group resumed>) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 667 [pid 667] set_robust_list(0x5555726b0660, 24) = 0 [pid 667] chdir("./92" [pid 664] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 667] <... chdir resumed>) = 0 [pid 666] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 667] setpgid(0, 0) = 0 [pid 666] <... openat resumed>) = 3 [pid 297] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 666] exit_group(0 [pid 297] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 666] <... exit_group resumed>) = ? [pid 299] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 [pid 667] <... openat resumed>) = 3 [pid 667] write(3, "1000", 4) = 4 [pid 667] close(3) = 0 [pid 666] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 667] symlink("/dev/binderfs", "./binderfs" [pid 299] newfstatat(3, "", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 667] <... symlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(3, [pid 667] write(1, "executing program\n", 18 [pid 299] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 667] <... write resumed>) = 18 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 667] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 667] <... mkdirat resumed>) = 0 [pid 298] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 298] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 667] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 3 [pid 667] <... mount resumed>) = 0 [pid 299] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 297] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 667] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./91/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./89/binderfs2", [pid 299] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 667] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./91/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./89/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 667] exit_group(0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 667] <... exit_group resumed>) = ? [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./89/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 667] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 297] newfstatat(4, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./91/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./91/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 300] umount2("./92", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./91/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 298] close(4 [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 298] rmdir("./91/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 297] close(4 [pid 299] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 298] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./89/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./91/binderfs") = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./91" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./91/binderfs", [pid 297] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./91/binderfs" [pid 298] mkdir("./92", 0777 [pid 297] newfstatat(AT_FDCWD, "./89/binderfs", [pid 300] newfstatat(AT_FDCWD, "./92/binderfs2", [pid 299] <... unlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./89/binderfs" [pid 300] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./91" [pid 297] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./92/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 668 ./strace-static-x86_64: Process 668 attached [pid 299] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 668] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] getdents64(3, [pid 300] newfstatat(4, "", [pid 299] mkdir("./92", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 668] chdir("./92") = 0 [pid 300] getdents64(4, [pid 297] close(3 [pid 668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 668] setpgid(0, 0 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] rmdir("./89" [pid 668] <... setpgid resumed>) = 0 [pid 668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 668] <... openat resumed>) = 3 [pid 668] write(3, "1000", 4) = 4 [pid 668] close(3) = 0 [pid 668] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 668] write(1, "executing program\n", 18) = 18 [pid 300] close(4 [pid 299] <... mkdir resumed>) = 0 [pid 297] mkdir("./90", 0777 [pid 300] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] rmdir("./92/binderfs2" [pid 668] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 669 attached ) = 0 [pid 669] set_robust_list(0x5555726b0660, 24 [pid 300] <... rmdir resumed>) = 0 [pid 669] <... set_robust_list resumed>) = 0 [pid 668] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 669] chdir("./92" [pid 668] <... mount resumed>) = 0 [pid 300] umount2("./92/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 669 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 669] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./92/binderfs", [pid 669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] unlink("./92/binderfs" [pid 669] <... prctl resumed>) = 0 [pid 669] setpgid(0, 0) = 0 [pid 668] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 670 attached ) = 3 [pid 668] <... openat resumed>) = 3 [pid 669] write(3, "1000", 4) = 4 [pid 669] close(3 [pid 668] exit_group(0 [pid 669] <... close resumed>) = 0 [pid 669] symlink("/dev/binderfs", "./binderfs" [pid 668] <... exit_group resumed>) = ? [pid 670] set_robust_list(0x5555726b0660, 24 [pid 669] <... symlink resumed>) = 0 [pid 668] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 670] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 670 [pid 670] chdir("./90" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 670] <... chdir resumed>) = 0 [pid 300] close(3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 670] <... prctl resumed>) = 0 executing program [pid 300] rmdir("./92" [pid 669] write(1, "executing program\n", 18) = 18 [pid 669] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 670] setpgid(0, 0 [pid 669] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 670] <... setpgid resumed>) = 0 [pid 669] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] mkdir("./93", 0777 [pid 670] <... openat resumed>) = 3 [pid 669] <... mount resumed>) = 0 [pid 669] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... mkdir resumed>) = 0 [pid 669] <... openat resumed>) = 3 [pid 670] write(3, "1000", 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 670] <... write resumed>) = 4 [pid 669] exit_group(0 [pid 670] close(3 [pid 669] <... exit_group resumed>) = ? [pid 670] <... close resumed>) = 0 [pid 669] +++ exited with 0 +++ ./strace-static-x86_64: Process 671 attached [pid 671] set_robust_list(0x5555726b0660, 24) = 0 [pid 670] symlink("/dev/binderfs", "./binderfs" [pid 671] chdir("./93") = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 670] <... symlink resumed>) = 0 executing program [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 670] write(1, "executing program\n", 18 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 671 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 670] <... write resumed>) = 18 [pid 671] setpgid(0, 0) = 0 [pid 670] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./92", MNT_FORCE|UMOUNT_NOFOLLOW [pid 671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 671] write(3, "1000", 4) = 4 [pid 298] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 671] close(3 [pid 298] <... openat resumed>) = 3 [pid 671] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 671] symlink("/dev/binderfs", "./binderfs") = 0 [pid 670] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 671] write(1, "executing program\n", 18executing program ) = 18 [pid 671] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 298] getdents64(3, [pid 670] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 671] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 671] <... mount resumed>) = 0 [pid 670] <... mount resumed>) = 0 [pid 298] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 671] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 671] exit_group(0) = ? [pid 298] <... umount2 resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 670] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 671] +++ exited with 0 +++ [pid 299] umount2("./92", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 670] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 670] exit_group(0 [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./92/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./92/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./92/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 670] <... exit_group resumed>) = ? [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./92/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./92/binderfs") = 0 [pid 670] +++ exited with 0 +++ [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./92" [pid 297] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./93", 0777) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./92/binderfs2", [pid 297] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 672 ./strace-static-x86_64: Process 672 attached [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 672] set_robust_list(0x5555726b0660, 24) = 0 [pid 672] chdir("./93") = 0 [pid 672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 672] setpgid(0, 0) = 0 [pid 672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./92/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 672] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./90/binderfs2", [pid 299] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 672] write(3, "1000", 4) = 4 [pid 672] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./90/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 672] <... close resumed>) = 0 [pid 300] umount2("./93", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 672] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 672] <... symlink resumed>) = 0 executing program [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 672] write(1, "executing program\n", 18) = 18 [pid 672] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] openat(AT_FDCWD, "./90/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 672] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 299] close(4 [pid 297] <... openat resumed>) = 4 [pid 672] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] getdents64(3, [pid 299] rmdir("./92/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 672] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 672] <... openat resumed>) = 3 [pid 672] exit_group(0) = ? [pid 299] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./92/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 672] +++ exited with 0 +++ [pid 300] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./92/binderfs", [pid 297] rmdir("./90/binderfs2" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] unlink("./92/binderfs" [pid 297] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./90/binderfs", [pid 300] newfstatat(AT_FDCWD, "./93/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(3 [pid 297] unlink("./90/binderfs" [pid 300] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./92" [pid 297] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./93/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] rmdir("./93/binderfs2") = 0 [pid 300] umount2("./93/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] mkdir("./93", 0777 [pid 297] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./93/binderfs", [pid 297] rmdir("./90" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./93/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] close(3) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] rmdir("./93" [pid 297] <... rmdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./93", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./91", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 673 attached [pid 298] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 673] set_robust_list(0x5555726b0660, 24 [pid 298] <... openat resumed>) = 3 [pid 673] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./94", 0777 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 673] chdir("./93" [pid 298] getdents64(3, [pid 673] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 673] <... prctl resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 673 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 673] setpgid(0, 0) = 0 [pid 673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 674 ./strace-static-x86_64: Process 674 attached [pid 673] write(3, "1000", 4 [pid 298] newfstatat(AT_FDCWD, "./93/binderfs2", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 674] set_robust_list(0x5555726b0660, 24 [pid 673] <... write resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 673] close(3 [pid 298] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 673] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 673] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 675 attached [pid 674] <... set_robust_list resumed>) = 0 [pid 673] <... symlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./93/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 675] set_robust_list(0x5555726b0660, 24) = 0 [pid 674] chdir("./94" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 675 [pid 674] <... chdir resumed>) = 0 executing program [pid 675] chdir("./91" [pid 674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 673] write(1, "executing program\n", 18 [pid 298] <... openat resumed>) = 4 [pid 675] <... chdir resumed>) = 0 [pid 674] <... prctl resumed>) = 0 [pid 673] <... write resumed>) = 18 [pid 298] newfstatat(4, "", [pid 675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 674] setpgid(0, 0 [pid 673] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 675] <... prctl resumed>) = 0 [pid 674] <... setpgid resumed>) = 0 [pid 673] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, [pid 675] setpgid(0, 0 [pid 674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 675] <... setpgid resumed>) = 0 [pid 674] <... openat resumed>) = 3 [pid 675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 674] write(3, "1000", 4 [pid 675] <... openat resumed>) = 3 [pid 674] <... write resumed>) = 4 [pid 673] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(4, [pid 675] write(3, "1000", 4 [pid 674] close(3 [pid 673] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 674] <... close resumed>) = 0 [pid 675] <... write resumed>) = 4 [pid 674] symlink("/dev/binderfs", "./binderfs" [pid 675] close(3) = 0 [pid 675] symlink("/dev/binderfs", "./binderfs") = 0 [pid 674] <... symlink resumed>) = 0 [pid 298] close(4) = 0 executing program [pid 675] write(1, "executing program\n", 18 [pid 298] rmdir("./93/binderfs2" [pid 675] <... write resumed>) = 18 [pid 673] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... rmdir resumed>) = 0 [pid 675] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program ) = 0 [pid 674] write(1, "executing program\n", 18) = 18 [pid 673] <... openat resumed>) = 3 [pid 674] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 673] exit_group(0 [pid 298] umount2("./93/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 673] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 674] <... mkdirat resumed>) = 0 [pid 673] +++ exited with 0 +++ [pid 675] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./93/binderfs", [pid 675] <... mount resumed>) = 0 [pid 674] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] unlink("./93/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./93") = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 675] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./93", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./94", 0777 [pid 299] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 675] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 675] exit_group(0) = ? [pid 674] <... mount resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 674] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 676 attached [pid 675] +++ exited with 0 +++ [pid 674] <... openat resumed>) = 3 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 676 [pid 299] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 676] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 674] exit_group(0 [pid 676] <... set_robust_list resumed>) = 0 [pid 297] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 674] <... exit_group resumed>) = ? [pid 299] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 676] chdir("./94" [pid 674] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 3 [pid 676] <... chdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./93/binderfs2", [pid 297] newfstatat(3, "", [pid 676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 676] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 676] setpgid(0, 0 [pid 297] getdents64(3, [pid 676] <... setpgid resumed>) = 0 [pid 299] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 676] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./93/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 676] write(3, "1000", 4 [pid 297] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 676] <... write resumed>) = 4 [pid 299] newfstatat(4, "", [pid 676] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 676] <... close resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 676] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 676] <... symlink resumed>) = 0 [pid 299] close(4 [pid 297] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./93/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./91/binderfs2", [pid 299] <... rmdir resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 676] write(1, "executing program\n", 18executing program [pid 299] umount2("./93/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./91/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 676] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 676] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./94", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./91/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./93/binderfs", [pid 297] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(4, "", [pid 676] <... mkdirat resumed>) = 0 [pid 300] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./93/binderfs" [pid 300] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 676] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 676] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] close(3 [pid 297] close(4 [pid 300] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] rmdir("./93" [pid 297] rmdir("./91/binderfs2" [pid 676] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 676] <... openat resumed>) = 3 [pid 297] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./94", 0777 [pid 297] newfstatat(AT_FDCWD, "./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 676] exit_group(0 [pid 300] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 297] unlink("./91/binderfs" [pid 676] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 677 attached [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./94/binderfs2", [pid 677] set_robust_list(0x5555726b0660, 24 [pid 297] close(3 [pid 677] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 676] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 677 [pid 297] rmdir("./91" [pid 677] chdir("./94" [pid 300] openat(AT_FDCWD, "./94/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 677] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 677] setpgid(0, 0) = 0 [pid 677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(4, "", [pid 297] mkdir("./92", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 677] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 677] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 677] <... write resumed>) = 4 [pid 300] getdents64(4, [pid 677] close(3) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 677] symlink("/dev/binderfs", "./binderfs" [pid 300] close(4 [pid 677] <... symlink resumed>) = 0 [pid 677] write(1, "executing program\n", 18 [pid 300] <... close resumed>) = 0 executing program [pid 297] <... mkdir resumed>) = 0 [pid 677] <... write resumed>) = 18 [pid 677] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./94/binderfs2" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 677] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 677] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 678 attached [pid 300] umount2("./94/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 677] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 678] set_robust_list(0x5555726b0660, 24 [pid 677] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./94/binderfs", [pid 678] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 678 [pid 678] chdir("./92" [pid 677] <... openat resumed>) = 3 [pid 300] unlink("./94/binderfs" [pid 678] <... chdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 677] exit_group(0 [pid 678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(3, [pid 678] <... prctl resumed>) = 0 [pid 677] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 678] setpgid(0, 0 [pid 300] close(3 [pid 678] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./94") = 0 [pid 678] <... openat resumed>) = 3 [pid 677] +++ exited with 0 +++ [pid 678] write(3, "1000", 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 678] <... write resumed>) = 4 [pid 678] close(3 [pid 300] mkdir("./95", 0777 [pid 299] restart_syscall(<... resuming interrupted clone ...>executing program [pid 678] <... close resumed>) = 0 [pid 678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... mkdir resumed>) = 0 [pid 678] write(1, "executing program\n", 18) = 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 679 attached [pid 678] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 679] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 679 [pid 298] <... restart_syscall resumed>) = 0 [pid 679] <... set_robust_list resumed>) = 0 [pid 678] <... mkdirat resumed>) = 0 [pid 679] chdir("./95") = 0 [pid 678] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./94", MNT_FORCE|UMOUNT_NOFOLLOW [pid 679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 679] <... prctl resumed>) = 0 [pid 678] <... mount resumed>) = 0 [pid 298] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 679] setpgid(0, 0) = 0 [pid 298] <... openat resumed>) = 3 [pid 679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 679] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 678] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 679] write(3, "1000", 4 [pid 678] <... openat resumed>) = 3 [pid 679] <... write resumed>) = 4 [pid 299] umount2("./94", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 679] close(3 [pid 678] exit_group(0 [pid 679] <... close resumed>) = 0 [pid 678] <... exit_group resumed>) = ? [pid 679] symlink("/dev/binderfs", "./binderfs" [pid 678] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] getdents64(3, [pid 297] restart_syscall(<... resuming interrupted clone ...>executing program [pid 679] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 679] write(1, "executing program\n", 18) = 18 [pid 679] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./94/binderfs2", [pid 679] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 679] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 679] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./92", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./94/binderfs2", [pid 298] openat(AT_FDCWD, "./94/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 679] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 679] <... openat resumed>) = 3 [pid 299] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./94/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 297] getdents64(3, [pid 299] <... openat resumed>) = 4 [pid 679] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 679] <... exit_group resumed>) = ? [pid 299] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./94/binderfs2" [pid 679] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] getdents64(4, [pid 297] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./94/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./94/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 298] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./92/binderfs2", [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./94/binderfs2" [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./94" [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./92/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./94/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./92/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./95", 0777 [pid 299] unlink("./94/binderfs" [pid 297] <... openat resumed>) = 4 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 297] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3 [pid 297] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 680 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 680 [pid 299] rmdir("./94" [pid 297] getdents64(4, [pid 680] set_robust_list(0x5555726b0660, 24 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 680] <... set_robust_list resumed>) = 0 [pid 297] close(4 [pid 680] chdir("./95" [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./92/binderfs2" [pid 680] <... chdir resumed>) = 0 [pid 680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... rmdir resumed>) = 0 [pid 680] <... prctl resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./95", 0777 [pid 680] setpgid(0, 0 [pid 297] umount2("./92/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 680] <... setpgid resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] newfstatat(AT_FDCWD, "./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 680] <... openat resumed>) = 3 [pid 680] write(3, "1000", 4 [pid 299] <... mkdir resumed>) = 0 [pid 297] unlink("./92/binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 680] <... write resumed>) = 4 [pid 680] close(3 [pid 297] <... unlink resumed>) = 0 [pid 680] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 680] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 681 attached [pid 297] close(3 [pid 681] set_robust_list(0x5555726b0660, 24 executing program [pid 680] write(1, "executing program\n", 18 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 681 [pid 681] <... set_robust_list resumed>) = 0 [pid 680] <... write resumed>) = 18 [pid 297] <... close resumed>) = 0 [pid 681] chdir("./95" [pid 680] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] rmdir("./92" [pid 681] <... chdir resumed>) = 0 [pid 681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 680] <... mkdirat resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 680] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 681] <... prctl resumed>) = 0 [pid 297] mkdir("./93", 0777 [pid 681] setpgid(0, 0 [pid 680] <... mount resumed>) = 0 [pid 681] <... setpgid resumed>) = 0 [pid 681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 680] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 680] exit_group(0 [pid 681] <... openat resumed>) = 3 [pid 680] <... exit_group resumed>) = ? [pid 681] write(3, "1000", 4 [pid 300] umount2("./95", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 681] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 681] close(3 [pid 300] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 681] <... close resumed>) = 0 ./strace-static-x86_64: Process 682 attached [pid 681] symlink("/dev/binderfs", "./binderfs" [pid 680] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 682] set_robust_list(0x5555726b0660, 24 [pid 681] <... symlink resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(3, "", [pid 681] write(1, "executing program\n", 18 executing program [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 681] <... write resumed>) = 18 [pid 300] getdents64(3, [pid 682] <... set_robust_list resumed>) = 0 [pid 682] chdir("./93" [pid 681] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 682 [pid 682] <... chdir resumed>) = 0 [pid 682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 682] setpgid(0, 0) = 0 [pid 681] <... mkdirat resumed>) = 0 [pid 682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 681] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 682] <... openat resumed>) = 3 [pid 682] write(3, "1000", 4) = 4 [pid 682] close(3 [pid 300] <... umount2 resumed>) = 0 [pid 682] <... close resumed>) = 0 [pid 682] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 682] write(1, "executing program\n", 18) = 18 [pid 682] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 681] <... mount resumed>) = 0 [pid 300] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 681] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./95/binderfs2", [pid 682] <... mkdirat resumed>) = 0 [pid 682] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 681] <... openat resumed>) = 3 [pid 300] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 682] <... mount resumed>) = 0 [pid 681] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./95/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 681] <... exit_group resumed>) = ? [pid 300] newfstatat(4, "", [pid 682] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 682] exit_group(0 [pid 681] +++ exited with 0 +++ [pid 300] getdents64(4, [pid 682] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 682] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] rmdir("./95/binderfs2") = 0 [pid 300] umount2("./95/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./95/binderfs") = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./95" [pid 298] umount2("./95", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./95", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 300] mkdir("./96", 0777 [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(3, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 683 attached [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 683 [pid 297] <... restart_syscall resumed>) = 0 [pid 683] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 683] chdir("./96" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./93", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./95/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./95/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./95/binderfs2" [pid 299] newfstatat(AT_FDCWD, "./95/binderfs2", [pid 683] <... chdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 683] <... prctl resumed>) = 0 [pid 297] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 683] setpgid(0, 0 [pid 299] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] <... setpgid resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./95/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] <... openat resumed>) = 4 [pid 298] umount2("./95/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 683] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./95/binderfs", [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] unlink("./95/binderfs" [pid 683] write(3, "1000", 4 [pid 299] getdents64(4, [pid 298] <... unlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 683] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] close(3 [pid 299] close(4 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./95" [pid 297] <... umount2 resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 683] <... close resumed>) = 0 [pid 297] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] symlink("/dev/binderfs", "./binderfs" [pid 299] rmdir("./95/binderfs2" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./93/binderfs2", [pid 298] mkdir("./96", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./93/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./93/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", [pid 299] <... rmdir resumed>) = 0 executing program [pid 683] write(1, "executing program\n", 18 [pid 299] umount2("./95/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] <... write resumed>) = 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 683] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 684 attached [pid 297] getdents64(4, [pid 684] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 684 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 684] <... set_robust_list resumed>) = 0 [pid 683] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./95/binderfs", [pid 297] getdents64(4, [pid 684] chdir("./96") = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 683] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] unlink("./95/binderfs" [pid 297] <... close resumed>) = 0 [pid 684] <... prctl resumed>) = 0 [pid 297] rmdir("./93/binderfs2" [pid 684] setpgid(0, 0) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] umount2("./93/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 683] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 684] write(3, "1000", 4) = 4 [pid 297] newfstatat(AT_FDCWD, "./93/binderfs", [pid 684] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 684] <... close resumed>) = 0 [pid 683] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(3, [pid 684] symlink("/dev/binderfs", "./binderfs" [pid 297] unlink("./93/binderfs" [pid 684] <... symlink resumed>) = 0 [pid 683] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 684] write(1, "executing program\n", 18 [pid 299] close(3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 683] exit_group(0executing program [pid 299] <... close resumed>) = 0 [pid 684] <... write resumed>) = 18 [pid 299] rmdir("./95" [pid 297] close(3 [pid 684] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 683] <... exit_group resumed>) = ? [pid 297] <... close resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] rmdir("./93") = 0 [pid 684] <... mkdirat resumed>) = 0 [pid 297] mkdir("./94", 0777 [pid 684] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 683] +++ exited with 0 +++ [pid 299] mkdir("./96", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 684] <... mount resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 684] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] umount2("./96", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 684] exit_group(0 [pid 300] <... openat resumed>) = 3 [pid 684] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 685 attached [pid 684] +++ exited with 0 +++ [pid 300] newfstatat(3, "", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 685 [pid 685] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 686 attached [pid 685] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 686] set_robust_list(0x5555726b0660, 24) = 0 [pid 685] chdir("./94" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 686] chdir("./96" [pid 300] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 685] <... chdir resumed>) = 0 [pid 686] <... chdir resumed>) = 0 [pid 685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 686] setpgid(0, 0) = 0 [pid 686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = 0 [pid 685] <... prctl resumed>) = 0 [pid 686] <... openat resumed>) = 3 [pid 686] write(3, "1000", 4) = 4 [pid 686] close(3) = 0 [pid 686] symlink("/dev/binderfs", "./binderfs" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 686 [pid 685] setpgid(0, 0 [pid 300] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 685] <... setpgid resumed>) = 0 [pid 686] <... symlink resumed>) = 0 [pid 685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 686] write(1, "executing program\n", 18) = 18 [pid 686] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 685] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 685] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./96/binderfs2", [pid 685] <... write resumed>) = 4 [pid 686] <... mkdirat resumed>) = 0 [pid 685] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 685] <... close resumed>) = 0 [pid 300] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 685] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] umount2("./96", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 686] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./96/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 686] <... mount resumed>) = 0 executing program [pid 685] write(1, "executing program\n", 18 [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 685] <... write resumed>) = 18 [pid 685] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 686] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 686] <... openat resumed>) = 3 [pid 685] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 686] exit_group(0) = ? [pid 298] <... umount2 resumed>) = 0 [pid 686] +++ exited with 0 +++ [pid 685] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./96/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./96/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./96/binderfs2") = 0 [pid 298] umount2("./96/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 685] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./96/binderfs", [pid 300] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] unlink("./96/binderfs" [pid 300] close(4) = 0 [pid 298] <... unlink resumed>) = 0 [pid 685] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./96/binderfs2" [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./96" [pid 300] <... rmdir resumed>) = 0 [pid 685] <... openat resumed>) = 3 [pid 300] umount2("./96/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./97", 0777 [pid 685] exit_group(0 [pid 300] unlink("./96/binderfs" [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... unlink resumed>) = 0 [pid 685] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 687 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 687 [pid 687] set_robust_list(0x5555726b0660, 24) = 0 [pid 687] chdir("./97") = 0 [pid 687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 687] setpgid(0, 0) = 0 [pid 300] getdents64(3, [pid 687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 687] <... openat resumed>) = 3 [pid 687] write(3, "1000", 4 [pid 299] umount2("./96", MNT_FORCE|UMOUNT_NOFOLLOW [pid 687] <... write resumed>) = 4 [pid 687] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 299] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 687] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 687] symlink("/dev/binderfs", "./binderfs"executing program [pid 299] <... openat resumed>) = 3 [pid 687] <... symlink resumed>) = 0 [pid 685] +++ exited with 0 +++ [pid 300] rmdir("./96" [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 687] write(1, "executing program\n", 18 [pid 299] getdents64(3, [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 687] <... write resumed>) = 18 [pid 687] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 687] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] mkdir("./97", 0777 [pid 299] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 687] <... mount resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 687] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 687] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 687] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 688 attached [pid 687] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./96/binderfs2", [pid 688] set_robust_list(0x5555726b0660, 24 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 688] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 688 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 688] chdir("./97" [pid 299] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 688] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] openat(AT_FDCWD, "./96/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 688] <... prctl resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 688] setpgid(0, 0 [pid 299] newfstatat(4, "", [pid 688] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 688] <... openat resumed>) = 3 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 688] write(3, "1000", 4 [pid 299] close(4 [pid 688] <... write resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 688] close(3 [pid 299] rmdir("./96/binderfs2" [pid 688] <... close resumed>) = 0 [pid 688] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 688] <... symlink resumed>) = 0 executing program [pid 688] write(1, "executing program\n", 18 [pid 299] umount2("./96/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 688] <... write resumed>) = 18 [pid 688] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 688] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 688] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] unlink("./96/binderfs" [pid 297] umount2("./94", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 297] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./97", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 688] <... mount resumed>) = 0 [pid 299] getdents64(3, [pid 688] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 299] close(3 [pid 298] newfstatat(3, "", [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] rmdir("./96" [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 688] <... openat resumed>) = 3 [pid 299] mkdir("./97", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./94/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./94/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./94/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 688] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./97/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 688] <... exit_group resumed>) = ? [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 298] openat(AT_FDCWD, "./97/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] close(4 [pid 298] newfstatat(4, "", [pid 297] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] rmdir("./94/binderfs2" [pid 688] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... rmdir resumed>) = 0 [pid 298] getdents64(4, ./strace-static-x86_64: Process 689 attached 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 689] set_robust_list(0x5555726b0660, 24 [pid 298] <... close resumed>) = 0 [pid 689] <... set_robust_list resumed>) = 0 [pid 298] rmdir("./97/binderfs2" [pid 297] umount2("./94/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 689] chdir("./97" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 689 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 689] <... chdir resumed>) = 0 [pid 689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... restart_syscall resumed>) = 0 [pid 689] <... prctl resumed>) = 0 [pid 298] umount2("./97/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./94/binderfs", [pid 689] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 689] <... setpgid resumed>) = 0 [pid 300] umount2("./97", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./97/binderfs", [pid 297] unlink("./94/binderfs" [pid 689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 689] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 298] unlink("./97/binderfs" [pid 689] write(3, "1000", 4 [pid 300] newfstatat(3, "", [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 689] <... write resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 689] close(3 [pid 298] getdents64(3, [pid 297] close(3 [pid 689] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... close resumed>) = 0 [pid 689] symlink("/dev/binderfs", "./binderfs" [pid 298] close(3 [pid 297] rmdir("./94" [pid 689] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 executing program [pid 300] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 689] write(1, "executing program\n", 18 [pid 298] rmdir("./97" [pid 689] <... write resumed>) = 18 [pid 298] <... rmdir resumed>) = 0 [pid 297] mkdir("./95", 0777 [pid 689] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 689] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./97/binderfs2", [pid 298] mkdir("./98", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] openat(AT_FDCWD, "./97/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 689] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 690 attached ) = 0 [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 690] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 690] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, ./strace-static-x86_64: Process 691 attached [pid 689] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 690 [pid 690] chdir("./95" [pid 689] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 691] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 691 [pid 691] <... set_robust_list resumed>) = 0 [pid 689] <... exit_group resumed>) = ? [pid 300] getdents64(4, [pid 690] <... chdir resumed>) = 0 [pid 691] chdir("./98" [pid 690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 689] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 690] <... prctl resumed>) = 0 [pid 300] close(4 [pid 690] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 690] <... setpgid resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] rmdir("./97/binderfs2" [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 691] <... chdir resumed>) = 0 [pid 691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... rmdir resumed>) = 0 [pid 691] <... prctl resumed>) = 0 [pid 690] <... openat resumed>) = 3 [pid 691] setpgid(0, 0) = 0 [pid 690] write(3, "1000", 4 [pid 691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... restart_syscall resumed>) = 0 [pid 690] <... write resumed>) = 4 [pid 300] umount2("./97/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 690] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 690] <... close resumed>) = 0 [pid 691] <... openat resumed>) = 3 [pid 690] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(AT_FDCWD, "./97/binderfs", [pid 691] write(3, "1000", 4 [pid 299] umount2("./97", MNT_FORCE|UMOUNT_NOFOLLOW [pid 691] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 690] <... symlink resumed>) = 0 [pid 300] unlink("./97/binderfs" [pid 691] close(3 [pid 299] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 691] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 691] symlink("/dev/binderfs", "./binderfs" [pid 300] <... unlink resumed>) = 0 [pid 299] newfstatat(3, "", executing program [pid 691] <... symlink resumed>) = 0 [pid 690] write(1, "executing program\n", 18 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 690] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 691] write(1, "executing program\n", 18 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 691] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 690] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./97" [pid 299] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 691] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 691] <... mkdirat resumed>) = 0 [pid 690] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] mkdir("./98", 0777 [pid 691] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 690] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 690] <... mount resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 691] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 690] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(AT_FDCWD, "./97/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 691] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./97/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 690] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 690] exit_group(0 [pid 691] exit_group(0./strace-static-x86_64: Process 692 attached [pid 692] set_robust_list(0x5555726b0660, 24) = 0 [pid 692] chdir("./98") = 0 [pid 692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 692] setpgid(0, 0) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 691] <... exit_group resumed>) = ? [pid 690] <... exit_group resumed>) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 692 [pid 299] getdents64(4, [pid 692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 692] <... openat resumed>) = 3 [pid 299] close(4 [pid 692] write(3, "1000", 4) = 4 [pid 692] close(3) = 0 [pid 692] symlink("/dev/binderfs", "./binderfs") = 0 [pid 690] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 692] write(1, "executing program\n", 18 [pid 299] rmdir("./97/binderfs2" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 692] <... write resumed>) = 18 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 692] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 692] <... mkdirat resumed>) = 0 [pid 692] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 691] +++ exited with 0 +++ [pid 299] umount2("./97/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(AT_FDCWD, "./97/binderfs", [pid 692] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./97/binderfs" [pid 692] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... unlink resumed>) = 0 [pid 692] exit_group(0) = ? [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./97" [pid 692] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] mkdir("./98", 0777 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 693 attached [pid 693] set_robust_list(0x5555726b0660, 24) = 0 [pid 693] chdir("./98" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 693 [pid 693] <... chdir resumed>) = 0 [pid 693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 693] setpgid(0, 0) = 0 [pid 693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 693] write(3, "1000", 4) = 4 [pid 693] close(3) = 0 [pid 693] symlink("/dev/binderfs", "./binderfs" [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 693] <... symlink resumed>) = 0 [pid 298] umount2("./98", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./95", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 693] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 3 [pid 693] <... write resumed>) = 18 [pid 298] getdents64(3, [pid 693] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(3, "", [pid 693] <... mkdirat resumed>) = 0 [pid 298] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 693] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./98", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./98/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./95/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./95/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./95/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./95/binderfs2") = 0 [pid 693] <... mount resumed>) = 0 [pid 297] umount2("./95/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./95/binderfs" [pid 300] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 693] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] openat(AT_FDCWD, "./98/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(3, "", [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(3, [pid 300] getdents64(3, [pid 298] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] close(3 [pid 300] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./95" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 693] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] mkdir("./96", 0777 [pid 298] close(4) = 0 [pid 298] rmdir("./98/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 693] exit_group(0 [pid 300] <... umount2 resumed>) = 0 [pid 693] <... exit_group resumed>) = ? [pid 298] umount2("./98/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 694 attached [pid 694] set_robust_list(0x5555726b0660, 24) = 0 [pid 694] chdir("./96" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 694 [pid 694] <... chdir resumed>) = 0 [pid 694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 693] +++ exited with 0 +++ [pid 300] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./98/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(AT_FDCWD, "./98/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 694] <... prctl resumed>) = 0 [pid 694] setpgid(0, 0 [pid 300] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./98/binderfs" [pid 694] <... setpgid resumed>) = 0 [pid 694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 694] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./98", MNT_FORCE|UMOUNT_NOFOLLOW [pid 694] <... write resumed>) = 4 [pid 694] close(3) = 0 [pid 694] symlink("/dev/binderfs", "./binderfs" [pid 298] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./98/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(3 [pid 300] getdents64(4, [pid 299] getdents64(3, [pid 694] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 694] write(1, "executing program\n", 18) = 18 [pid 694] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./98" [pid 300] close(4 [pid 694] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 694] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 694] <... openat resumed>) = 3 [pid 694] exit_group(0 [pid 300] rmdir("./98/binderfs2" [pid 299] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./99", 0777 [pid 694] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./98/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./98/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./98/binderfs", [pid 299] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./98/binderfs" [pid 694] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./98/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... openat resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(3, [pid 299] newfstatat(4, "", [pid 297] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 695 attached [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(3 [pid 299] getdents64(4, [pid 695] set_robust_list(0x5555726b0660, 24) = 0 [pid 695] chdir("./99" [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 695 [pid 300] rmdir("./98" [pid 299] getdents64(4, [pid 695] <... chdir resumed>) = 0 [pid 695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 695] setpgid(0, 0) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 695] <... openat resumed>) = 3 [pid 695] write(3, "1000", 4) = 4 [pid 695] close(3) = 0 [pid 695] symlink("/dev/binderfs", "./binderfs" [pid 299] close(4 executing program [pid 300] mkdir("./99", 0777 [pid 299] <... close resumed>) = 0 [pid 695] <... symlink resumed>) = 0 [pid 299] rmdir("./98/binderfs2" [pid 695] write(1, "executing program\n", 18) = 18 [pid 695] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 695] <... mkdirat resumed>) = 0 [pid 695] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./98/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(AT_FDCWD, "./98/binderfs", [pid 695] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 696 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 696 [pid 299] unlink("./98/binderfs" [pid 297] umount2("./96", MNT_FORCE|UMOUNT_NOFOLLOW [pid 696] set_robust_list(0x5555726b0660, 24 [pid 695] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 696] <... set_robust_list resumed>) = 0 [pid 695] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 297] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 696] chdir("./99" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 696] <... chdir resumed>) = 0 [pid 695] exit_group(0 [pid 299] close(3 [pid 297] <... openat resumed>) = 3 [pid 696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 695] <... exit_group resumed>) = ? [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 696] <... prctl resumed>) = 0 [pid 695] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] rmdir("./98" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 696] setpgid(0, 0 [pid 297] getdents64(3, [pid 696] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./99", 0777 [pid 696] <... openat resumed>) = 3 [pid 696] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = 0 [pid 696] <... write resumed>) = 4 [pid 696] close(3 [pid 299] <... mkdir resumed>) = 0 [pid 696] <... close resumed>) = 0 [pid 696] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) executing program [pid 297] newfstatat(AT_FDCWD, "./96/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 696] write(1, "executing program\n", 18) = 18 [pid 297] umount2("./96/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 696] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 696] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./96/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 697 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 697 [pid 697] set_robust_list(0x5555726b0660, 24 [pid 696] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(4, [pid 697] <... set_robust_list resumed>) = 0 [pid 696] <... mount resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 697] chdir("./99" [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 697] <... chdir resumed>) = 0 [pid 297] close(4 [pid 697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] <... close resumed>) = 0 [pid 697] setpgid(0, 0 [pid 297] rmdir("./96/binderfs2" [pid 697] <... setpgid resumed>) = 0 [pid 697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 696] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 697] write(3, "1000", 4 [pid 696] exit_group(0 [pid 697] <... write resumed>) = 4 [pid 298] umount2("./99", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./96/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 697] close(3 [pid 696] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 697] <... close resumed>) = 0 [pid 696] +++ exited with 0 +++ [pid 298] <... openat resumed>) = 3 [pid 697] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(3, "", [pid 697] <... symlink resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./96/binderfs", [pid 697] write(1, "executing program\n", 18executing program [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 697] <... write resumed>) = 18 [pid 297] unlink("./96/binderfs" [pid 697] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... unlink resumed>) = 0 [pid 697] <... mkdirat resumed>) = 0 [pid 298] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 697] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] rmdir("./96" [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 697] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./99/binderfs2", [pid 297] mkdir("./97", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 697] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 697] exit_group(0) = ? [pid 298] openat(AT_FDCWD, "./99/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 697] +++ exited with 0 +++ [pid 298] <... openat resumed>) = 4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 698 attached [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 698 [pid 698] set_robust_list(0x5555726b0660, 24 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 698] <... set_robust_list resumed>) = 0 [pid 298] getdents64(4, [pid 698] chdir("./97" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 698] <... chdir resumed>) = 0 [pid 298] getdents64(4, [pid 698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 698] <... prctl resumed>) = 0 [pid 298] close(4 [pid 698] setpgid(0, 0 [pid 298] <... close resumed>) = 0 [pid 698] <... setpgid resumed>) = 0 [pid 298] rmdir("./99/binderfs2" [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./99", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./99/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 698] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 298] newfstatat(AT_FDCWD, "./99/binderfs", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 698] write(3, "1000", 4 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 698] <... write resumed>) = 4 [pid 298] unlink("./99/binderfs" [pid 698] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... unlink resumed>) = 0 [pid 698] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 698] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 698] <... symlink resumed>) = 0 [pid 298] close(3) = 0 [pid 698] write(1, "executing program\n", 18) = 18 [pid 298] rmdir("./99" [pid 698] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 698] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./99/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 698] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] mkdir("./100", 0777 [pid 698] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 698] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 698] <... openat resumed>) = 3 [pid 698] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./99/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... openat resumed>) = 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(4, "", ./strace-static-x86_64: Process 699 attached [pid 698] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./99", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 699] set_robust_list(0x5555726b0660, 24 [pid 698] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 699] <... set_robust_list resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 699 [pid 699] chdir("./100" [pid 300] getdents64(4, [pid 299] newfstatat(3, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 699] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 297] umount2("./97", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 699] <... prctl resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 699] setpgid(0, 0 [pid 300] rmdir("./99/binderfs2" [pid 699] <... setpgid resumed>) = 0 [pid 297] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./97/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./97/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./97/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] getdents64(4, [pid 699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./99/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 699] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 699] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./99/binderfs", [pid 299] newfstatat(AT_FDCWD, "./99/binderfs2", [pid 297] getdents64(4, [pid 699] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 699] close(3 [pid 300] unlink("./99/binderfs" [pid 299] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 699] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./99/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] rmdir("./97/binderfs2" [pid 699] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(3, [pid 299] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 300] close(3 [pid 297] umount2("./97/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./97/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./97" [pid 699] <... symlink resumed>) = 0 [pid 299] getdents64(4, [pid 699] write(1, "executing program\n", 18 [pid 300] rmdir("./99" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./98", 0777executing program [pid 699] <... write resumed>) = 18 [pid 300] <... rmdir resumed>) = 0 [pid 299] close(4 [pid 297] <... mkdir resumed>) = 0 [pid 699] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] mkdir("./100", 0777 [pid 299] <... close resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] rmdir("./99/binderfs2"./strace-static-x86_64: Process 700 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 700 [pid 700] set_robust_list(0x5555726b0660, 24 [pid 699] <... mkdirat resumed>) = 0 [pid 700] <... set_robust_list resumed>) = 0 [pid 700] chdir("./98") = 0 [pid 700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 700] setpgid(0, 0) = 0 [pid 700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 700] write(3, "1000", 4) = 4 [pid 700] close(3) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 699] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./99/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 700] symlink("/dev/binderfs", "./binderfs") = 0 [pid 700] write(1, "executing program\n", 18) = 18 [pid 700] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 701 attached [pid 700] <... mkdirat resumed>) = 0 [pid 701] set_robust_list(0x5555726b0660, 24) = 0 [pid 701] chdir("./100" [pid 700] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 701] <... chdir resumed>) = 0 [pid 699] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./99/binderfs", [pid 701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 700] <... mount resumed>) = 0 [pid 699] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 701 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 701] <... prctl resumed>) = 0 [pid 299] unlink("./99/binderfs" [pid 701] setpgid(0, 0) = 0 [pid 299] <... unlink resumed>) = 0 [pid 701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 701] <... openat resumed>) = 3 [pid 700] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] close(3 [pid 701] write(3, "1000", 4 [pid 700] <... openat resumed>) = 3 [pid 699] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 701] <... write resumed>) = 4 [pid 299] rmdir("./99" [pid 701] close(3 [pid 700] exit_group(0 [pid 701] <... close resumed>) = 0 [pid 701] symlink("/dev/binderfs", "./binderfs") = 0 [pid 700] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 699] exit_group(0executing program ) = ? [pid 299] mkdir("./100", 0777 [pid 701] write(1, "executing program\n", 18 [pid 700] +++ exited with 0 +++ [pid 701] <... write resumed>) = 18 [pid 701] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 699] +++ exited with 0 +++ [pid 701] <... mkdirat resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 701] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 701] <... mount resumed>) = 0 [pid 701] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY./strace-static-x86_64: Process 702 attached [pid 702] set_robust_list(0x5555726b0660, 24) = 0 [pid 702] chdir("./100" [pid 701] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 702 [pid 702] <... chdir resumed>) = 0 [pid 702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 701] exit_group(0 [pid 702] <... prctl resumed>) = 0 [pid 702] setpgid(0, 0) = 0 [pid 701] <... exit_group resumed>) = ? [pid 702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 701] +++ exited with 0 +++ [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./98", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 702] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 702] write(3, "1000", 4 [pid 297] <... openat resumed>) = 3 [pid 702] <... write resumed>) = 4 [pid 702] close(3) = 0 [pid 297] newfstatat(3, "", [pid 702] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 702] <... symlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 702] write(1, "executing program\n", 18executing program ) = 18 [pid 297] <... umount2 resumed>) = 0 [pid 702] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 702] <... mkdirat resumed>) = 0 [pid 298] umount2("./100", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 702] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./100", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 702] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./98/binderfs2", [pid 300] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 297] umount2("./98/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./98/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 702] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(4, "", [pid 702] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 702] exit_group(0 [pid 300] getdents64(3, [pid 298] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 702] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 702] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./100/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 300] <... umount2 resumed>) = 0 [pid 298] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./98/binderfs2" [pid 300] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 298] openat(AT_FDCWD, "./100/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./100", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./98/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./100/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(AT_FDCWD, "./98/binderfs", [pid 299] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] unlink("./98/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./100/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 298] close(4 [pid 297] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", [pid 298] rmdir("./100/binderfs2" [pid 297] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] rmdir("./98" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] umount2("./100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./100/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] mkdir("./99", 0777 [pid 300] close(4) = 0 [pid 299] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./100/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./100/binderfs2", [pid 298] close(3) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./100" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./100/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 703 attached [pid 703] set_robust_list(0x5555726b0660, 24) = 0 [pid 703] chdir("./99") = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 703 [pid 703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] mkdir("./101", 0777 [pid 703] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./100/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 703] setpgid(0, 0 [pid 300] unlink("./100/binderfs" [pid 299] <... openat resumed>) = 4 [pid 703] <... setpgid resumed>) = 0 [pid 703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... unlink resumed>) = 0 [pid 299] newfstatat(4, "", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 703] <... openat resumed>) = 3 [pid 300] close(3 [pid 299] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 704 attached [pid 300] rmdir("./100" [pid 299] getdents64(4, [pid 703] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 704] set_robust_list(0x5555726b0660, 24 [pid 703] <... write resumed>) = 4 [pid 299] close(4 [pid 703] close(3) = 0 [pid 299] <... close resumed>) = 0 [pid 703] symlink("/dev/binderfs", "./binderfs" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 704 [pid 299] rmdir("./100/binderfs2"executing program [pid 703] <... symlink resumed>) = 0 [pid 703] write(1, "executing program\n", 18) = 18 [pid 703] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 703] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 704] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./101", 0777 [pid 299] umount2("./100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 704] chdir("./101" [pid 300] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 704] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./100/binderfs", [pid 704] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 704] setpgid(0, 0 [pid 299] unlink("./100/binderfs" [pid 704] <... setpgid resumed>) = 0 [pid 704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 703] <... mount resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 703] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 703] exit_group(0) = ? ./strace-static-x86_64: Process 705 attached [pid 703] +++ exited with 0 +++ [pid 704] <... openat resumed>) = 3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 705 [pid 299] getdents64(3, [pid 704] write(3, "1000", 4 [pid 705] set_robust_list(0x5555726b0660, 24 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 705] <... set_robust_list resumed>) = 0 [pid 704] <... write resumed>) = 4 [pid 299] close(3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 705] chdir("./101" [pid 704] close(3 [pid 705] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 704] <... close resumed>) = 0 [pid 299] rmdir("./100" [pid 704] symlink("/dev/binderfs", "./binderfs" [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 [pid 299] <... rmdir resumed>) = 0 [pid 705] <... openat resumed>) = 3 [pid 705] write(3, "1000", 4 [pid 704] <... symlink resumed>) = 0 [pid 705] <... write resumed>) = 4 executing program executing program [pid 704] write(1, "executing program\n", 18 [pid 299] mkdir("./101", 0777 [pid 705] close(3 [pid 704] <... write resumed>) = 18 [pid 705] <... close resumed>) = 0 [pid 705] symlink("/dev/binderfs", "./binderfs" [pid 704] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 705] <... symlink resumed>) = 0 [pid 705] write(1, "executing program\n", 18) = 18 [pid 705] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 704] <... mkdirat resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 705] <... mkdirat resumed>) = 0 [pid 705] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 704] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 705] <... mount resumed>) = 0 [pid 705] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 704] <... mount resumed>) = 0 ./strace-static-x86_64: Process 706 attached [pid 704] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 706 [pid 297] <... restart_syscall resumed>) = 0 [pid 706] set_robust_list(0x5555726b0660, 24 [pid 704] <... openat resumed>) = 3 [pid 706] <... set_robust_list resumed>) = 0 [pid 705] <... openat resumed>) = 3 [pid 704] exit_group(0 [pid 297] umount2("./99", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] chdir("./101" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 706] <... chdir resumed>) = 0 [pid 704] <... exit_group resumed>) = ? [pid 706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 705] exit_group(0 [pid 297] newfstatat(3, "", [pid 706] <... prctl resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 706] setpgid(0, 0 [pid 297] getdents64(3, [pid 706] <... setpgid resumed>) = 0 [pid 705] <... exit_group resumed>) = ? [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 705] +++ exited with 0 +++ [pid 704] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 706] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = 0 [pid 706] <... write resumed>) = 4 [pid 706] close(3 [pid 298] umount2("./101", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 706] symlink("/dev/binderfs", "./binderfs" [pid 298] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 297] newfstatat(AT_FDCWD, "./99/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 706] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 706] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./99/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 706] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./99/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", [pid 298] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 706] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 706] <... mount resumed>) = 0 [pid 300] umount2("./101", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./101/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(4 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./99/binderfs2" [pid 706] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(3, [pid 298] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 706] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./99/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 706] exit_group(0 [pid 300] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./101/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 706] <... exit_group resumed>) = ? [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 706] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] newfstatat(AT_FDCWD, "./99/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] unlink("./99/binderfs" [pid 300] newfstatat(AT_FDCWD, "./101/binderfs2", [pid 298] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./101", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./101/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(3, "", [pid 298] rmdir("./101/binderfs2" [pid 297] close(3 [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 297] rmdir("./99" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] getdents64(4, [pid 299] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./100", 0777 [pid 298] unlink("./101/binderfs" [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./101" [pid 300] close(4 [pid 299] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./101/binderfs2" [pid 299] newfstatat(AT_FDCWD, "./101/binderfs2", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./102", 0777./strace-static-x86_64: Process 707 attached [pid 300] umount2("./101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 707] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./101/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 707 [pid 707] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./101/binderfs", [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 707] chdir("./100" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 708 attached [pid 707] <... chdir resumed>) = 0 [pid 300] unlink("./101/binderfs" [pid 299] getdents64(4, [pid 707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 708 [pid 707] <... prctl resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 707] setpgid(0, 0 [pid 299] getdents64(4, [pid 708] set_robust_list(0x5555726b0660, 24 [pid 707] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] close(4 [pid 708] <... set_robust_list resumed>) = 0 [pid 707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 708] chdir("./102" [pid 299] rmdir("./101/binderfs2" [pid 707] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 708] <... chdir resumed>) = 0 [pid 707] write(3, "1000", 4 [pid 300] close(3 [pid 299] umount2("./101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 707] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./101" [pid 707] close(3) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 708] <... prctl resumed>) = 0 [pid 707] symlink("/dev/binderfs", "./binderfs" [pid 299] newfstatat(AT_FDCWD, "./101/binderfs", [pid 707] <... symlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 708] setpgid(0, 0 [pid 300] mkdir("./102", 0777 [pid 299] unlink("./101/binderfs" [pid 708] <... setpgid resumed>) = 0 [pid 707] write(1, "executing program\n", 18 [pid 708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... unlink resumed>) = 0 [pid 708] <... openat resumed>) = 3 [pid 707] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 708] write(3, "1000", 4 [pid 707] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 708] <... write resumed>) = 4 [pid 707] <... mkdirat resumed>) = 0 [pid 708] close(3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 708] <... close resumed>) = 0 [pid 299] close(3./strace-static-x86_64: Process 709 attached [pid 708] symlink("/dev/binderfs", "./binderfs" [pid 299] <... close resumed>) = 0 [pid 709] set_robust_list(0x5555726b0660, 24) = 0 [pid 709] chdir("./102") = 0 [pid 709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 709] setpgid(0, 0 [pid 708] <... symlink resumed>) = 0 [pid 707] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 708] write(1, "executing program\n", 18 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 709 [pid 299] rmdir("./101" [pid 709] <... setpgid resumed>) = 0 [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 707] <... mount resumed>) = 0 [pid 709] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 709] <... symlink resumed>) = 0 executing program [pid 709] write(1, "executing program\n", 18) = 18 [pid 709] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 708] <... write resumed>) = 18 [pid 299] mkdir("./102", 0777 [pid 708] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 709] <... mkdirat resumed>) = 0 [pid 709] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... mkdir resumed>) = 0 [pid 708] <... mkdirat resumed>) = 0 [pid 707] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 708] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 707] <... openat resumed>) = 3 [pid 709] <... mount resumed>) = 0 [pid 709] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 ./strace-static-x86_64: Process 710 attached [pid 709] exit_group(0 [pid 710] set_robust_list(0x5555726b0660, 24 [pid 709] <... exit_group resumed>) = ? [pid 710] <... set_robust_list resumed>) = 0 [pid 710] chdir("./102" [pid 708] <... mount resumed>) = 0 [pid 707] exit_group(0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 710 [pid 708] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 707] <... exit_group resumed>) = ? [pid 710] <... chdir resumed>) = 0 [pid 710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 710] setpgid(0, 0) = 0 [pid 709] +++ exited with 0 +++ [pid 710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 710] write(3, "1000", 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 710] <... write resumed>) = 4 [pid 708] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 710] close(3) = 0 [pid 710] symlink("/dev/binderfs", "./binderfs") = 0 [pid 708] exit_group(0 [pid 707] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 710] write(1, "executing program\n", 18executing program ) = 18 [pid 710] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 708] <... exit_group resumed>) = ? [pid 710] <... mkdirat resumed>) = 0 [pid 710] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 708] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 710] <... mount resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 710] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 710] exit_group(0) = ? [pid 710] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 300] umount2("./102", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./100", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(3, "", [pid 300] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./102", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./102/binderfs2", [pid 299] umount2("./102", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./102/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 299] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./100/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./100/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./102/binderfs2", [pid 297] openat(AT_FDCWD, "./100/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./102/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] close(4 [pid 299] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] rmdir("./102/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] close(4 [pid 298] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./100/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./102/binderfs2", [pid 298] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./102/binderfs2" [pid 297] umount2("./100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./102/binderfs", [pid 299] openat(AT_FDCWD, "./102/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] unlink("./102/binderfs" [pid 299] newfstatat(4, "", [pid 300] <... unlink resumed>) = 0 [pid 298] umount2("./102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./100/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(3, [pid 299] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./102/binderfs", [pid 297] unlink("./100/binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 298] unlink("./102/binderfs" [pid 299] getdents64(4, [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 300] rmdir("./102" [pid 299] close(4) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./102/binderfs2" [pid 297] close(3 [pid 298] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./100" [pid 299] <... rmdir resumed>) = 0 [pid 298] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./102") = 0 [pid 297] mkdir("./101", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./103", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./102/binderfs", [pid 298] mkdir("./103", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] unlink("./102/binderfs" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, ./strace-static-x86_64: Process 712 attached ./strace-static-x86_64: Process 711 attached [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 712] set_robust_list(0x5555726b0660, 24 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 713 attached [pid 712] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 712 [pid 299] close(3 [pid 711] set_robust_list(0x5555726b0660, 24 [pid 299] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 711 [pid 713] set_robust_list(0x5555726b0660, 24 [pid 711] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 713 [pid 711] chdir("./101" [pid 713] <... set_robust_list resumed>) = 0 [pid 712] chdir("./103" [pid 711] <... chdir resumed>) = 0 [pid 299] rmdir("./102" [pid 713] chdir("./103" [pid 712] <... chdir resumed>) = 0 [pid 711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 711] setpgid(0, 0) = 0 [pid 713] <... chdir resumed>) = 0 [pid 712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... rmdir resumed>) = 0 [pid 713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 712] <... prctl resumed>) = 0 executing program [pid 712] setpgid(0, 0 [pid 713] <... prctl resumed>) = 0 [pid 299] mkdir("./103", 0777 [pid 711] <... openat resumed>) = 3 [pid 711] write(3, "1000", 4 [pid 713] setpgid(0, 0 [pid 712] <... setpgid resumed>) = 0 [pid 711] <... write resumed>) = 4 [pid 711] close(3) = 0 [pid 713] <... setpgid resumed>) = 0 [pid 712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 711] symlink("/dev/binderfs", "./binderfs" [pid 713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 711] <... symlink resumed>) = 0 [pid 711] write(1, "executing program\n", 18 [pid 299] <... mkdir resumed>) = 0 [pid 711] <... write resumed>) = 18 [pid 712] <... openat resumed>) = 3 [pid 711] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 713] <... openat resumed>) = 3 [pid 712] write(3, "1000", 4 [pid 713] write(3, "1000", 4 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 713] <... write resumed>) = 4 [pid 712] <... write resumed>) = 4 [pid 713] close(3 [pid 712] close(3 [pid 711] <... mkdirat resumed>) = 0 [pid 712] <... close resumed>) = 0 [pid 711] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 713] <... close resumed>) = 0 [pid 712] symlink("/dev/binderfs", "./binderfs" [pid 711] <... mount resumed>) = 0 ./strace-static-x86_64: Process 714 attached [pid 713] symlink("/dev/binderfs", "./binderfs" [pid 714] set_robust_list(0x5555726b0660, 24 [pid 712] <... symlink resumed>) = 0 [pid 714] <... set_robust_list resumed>) = 0 [pid 714] chdir("./103" [pid 711] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 714] <... chdir resumed>) = 0 [pid 711] <... openat resumed>) = 3 [pid 714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 713] <... symlink resumed>) = 0 [pid 712] write(1, "executing program\n", 18 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 714 executing program executing program [pid 714] <... prctl resumed>) = 0 [pid 712] <... write resumed>) = 18 [pid 711] exit_group(0 [pid 714] setpgid(0, 0 [pid 713] write(1, "executing program\n", 18 [pid 711] <... exit_group resumed>) = ? [pid 714] <... setpgid resumed>) = 0 [pid 713] <... write resumed>) = 18 [pid 712] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 711] +++ exited with 0 +++ [pid 713] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 714] <... openat resumed>) = 3 [pid 712] <... mkdirat resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 714] write(3, "1000", 4) = 4 [pid 714] close(3) = 0 [pid 714] symlink("/dev/binderfs", "./binderfs" [pid 713] <... mkdirat resumed>) = 0 executing program [pid 714] <... symlink resumed>) = 0 [pid 712] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 714] write(1, "executing program\n", 18) = 18 [pid 714] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 712] <... mount resumed>) = 0 [pid 714] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 713] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 712] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 714] <... mount resumed>) = 0 [pid 714] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 713] <... mount resumed>) = 0 [pid 714] <... openat resumed>) = 3 [pid 712] <... openat resumed>) = 3 [pid 713] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 712] exit_group(0 [pid 714] exit_group(0 [pid 713] <... openat resumed>) = 3 [pid 712] <... exit_group resumed>) = ? [pid 714] <... exit_group resumed>) = ? [pid 714] +++ exited with 0 +++ [pid 297] umount2("./101", MNT_FORCE|UMOUNT_NOFOLLOW [pid 712] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=712, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... openat resumed>) = 3 [pid 713] exit_group(0 [pid 300] umount2("./103", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./103", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 713] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 300] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 713] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... umount2 resumed>) = 0 [pid 299] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 297] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./101/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./103/binderfs2", [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./101/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./103/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./103/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./101/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./103/binderfs2", [pid 297] <... openat resumed>) = 4 [pid 300] umount2("./103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./103/binderfs", [pid 299] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] unlink("./103/binderfs" [pid 299] openat(AT_FDCWD, "./103/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 300] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(4, "", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] close(3 [pid 299] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] rmdir("./103" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./101/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 300] mkdir("./104", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 297] umount2("./101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] rmdir("./103/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./101/binderfs", ./strace-static-x86_64: Process 715 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./101/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 715] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 715 [pid 715] <... set_robust_list resumed>) = 0 [pid 715] chdir("./104") = 0 [pid 299] newfstatat(AT_FDCWD, "./103/binderfs", [pid 297] getdents64(3, [pid 715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 715] setpgid(0, 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 715] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] unlink("./103/binderfs" [pid 297] close(3 [pid 298] umount2("./103", MNT_FORCE|UMOUNT_NOFOLLOW [pid 715] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 297] rmdir("./101" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 715] write(3, "1000", 4 [pid 298] <... openat resumed>) = 3 [pid 715] <... write resumed>) = 4 [pid 298] newfstatat(3, "", [pid 715] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 715] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 715] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 715] <... symlink resumed>) = 0 [pid 299] close(3 [pid 298] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./102", 0777executing program [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./103" [pid 715] write(1, "executing program\n", 18 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 715] <... write resumed>) = 18 [pid 715] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 299] mkdir("./104", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./103/binderfs2", [pid 715] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 715] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 716 attached [pid 298] openat(AT_FDCWD, "./103/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 716] set_robust_list(0x5555726b0660, 24 [pid 715] <... mount resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 715] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 717 attached [pid 716] <... set_robust_list resumed>) = 0 [pid 715] <... openat resumed>) = 3 [pid 298] close(4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 716 [pid 717] set_robust_list(0x5555726b0660, 24 [pid 298] <... close resumed>) = 0 [pid 716] chdir("./102" [pid 717] <... set_robust_list resumed>) = 0 [pid 715] exit_group(0 [pid 298] rmdir("./103/binderfs2" [pid 717] chdir("./104" [pid 716] <... chdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 717 [pid 298] <... rmdir resumed>) = 0 [pid 716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 717] <... chdir resumed>) = 0 [pid 716] <... prctl resumed>) = 0 [pid 715] <... exit_group resumed>) = ? [pid 717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 716] setpgid(0, 0 [pid 715] +++ exited with 0 +++ [pid 298] umount2("./103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 717] <... prctl resumed>) = 0 [pid 716] <... setpgid resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 717] setpgid(0, 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 717] <... setpgid resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./103/binderfs", [pid 717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 717] <... openat resumed>) = 3 [pid 298] unlink("./103/binderfs" [pid 716] <... openat resumed>) = 3 [pid 717] write(3, "1000", 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 717] <... write resumed>) = 4 [pid 716] write(3, "1000", 4 [pid 298] <... unlink resumed>) = 0 [pid 717] close(3 [pid 716] <... write resumed>) = 4 [pid 717] <... close resumed>) = 0 [pid 300] umount2("./104", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 717] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 717] <... symlink resumed>) = 0 [pid 716] close(3 [pid 300] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 717] write(1, "executing program\n", 18 [pid 716] <... close resumed>) = 0 [pid 298] close(3 [pid 717] <... write resumed>) = 18 [pid 716] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 717] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(3, "", [pid 298] rmdir("./103" [pid 717] <... mkdirat resumed>) = 0 [pid 716] <... symlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 716] write(1, "executing program\n", 18 [pid 717] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 716] <... write resumed>) = 18 [pid 300] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 716] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 298] mkdir("./104", 0777 [pid 716] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 717] <... mount resumed>) = 0 [pid 716] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 716] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 717] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 717] exit_group(0 [pid 716] <... openat resumed>) = 3 [pid 300] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 717] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 718 ./strace-static-x86_64: Process 718 attached [pid 717] +++ exited with 0 +++ [pid 716] exit_group(0 [pid 300] newfstatat(AT_FDCWD, "./104/binderfs2", [pid 718] set_robust_list(0x5555726b0660, 24 [pid 716] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./104/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 716] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./104/binderfs2" [pid 299] --- 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] <... set_robust_list resumed>) = 0 [pid 718] chdir("./104" [pid 300] <... rmdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 718] <... chdir resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./102", MNT_FORCE|UMOUNT_NOFOLLOW [pid 718] <... prctl resumed>) = 0 [pid 300] umount2("./104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 718] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./104/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./104/binderfs" [pid 718] <... setpgid resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./104", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] newfstatat(3, "", [pid 299] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 299] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./104" [pid 718] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 718] write(3, "1000", 4 [pid 299] getdents64(3, [pid 297] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./105", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 718] <... write resumed>) = 4 [pid 299] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 718] close(3 [pid 297] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 718] <... close resumed>) = 0 [pid 718] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 719 attached [pid 719] set_robust_list(0x5555726b0660, 24 [pid 718] <... symlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./102/binderfs2", [pid 299] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 719] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 719 [pid 299] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./102/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 719] chdir("./105") = 0 [pid 719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 719] setpgid(0, 0) = 0 [pid 718] write(1, "executing program\n", 18 executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 718] <... write resumed>) = 18 [pid 719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 718] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(AT_FDCWD, "./104/binderfs2", [pid 297] openat(AT_FDCWD, "./102/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 719] write(3, "1000", 4) = 4 [pid 719] close(3) = 0 [pid 719] symlink("/dev/binderfs", "./binderfs") = 0 [pid 718] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 executing program [pid 719] write(1, "executing program\n", 18) = 18 [pid 719] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 719] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 718] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./104/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 719] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 299] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(4, "", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 297] close(4 [pid 719] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] rmdir("./102/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 719] <... openat resumed>) = 3 [pid 719] exit_group(0 [pid 299] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 719] <... exit_group resumed>) = ? [pid 299] <... close resumed>) = 0 [pid 719] +++ exited with 0 +++ [pid 718] <... mount resumed>) = 0 [pid 297] umount2("./102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./104/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./102/binderfs", [pid 718] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./104/binderfs" [pid 718] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 297] unlink("./102/binderfs" [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 718] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./104" [pid 718] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 299] mkdir("./105", 0777 [pid 297] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 718] +++ exited with 0 +++ [pid 297] rmdir("./102" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 720 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 720 [pid 297] mkdir("./103", 0777 [pid 720] set_robust_list(0x5555726b0660, 24) = 0 [pid 720] chdir("./105" [pid 300] <... restart_syscall resumed>) = 0 [pid 720] <... chdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] umount2("./105", MNT_FORCE|UMOUNT_NOFOLLOW [pid 720] setpgid(0, 0) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 721 attached [pid 720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 721 [pid 721] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = 0 [pid 720] <... openat resumed>) = 3 [pid 721] <... set_robust_list resumed>) = 0 [pid 300] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 720] write(3, "1000", 4 [pid 721] chdir("./103" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 720] <... write resumed>) = 4 [pid 721] <... chdir resumed>) = 0 [pid 720] close(3 [pid 721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 720] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./105/binderfs2", [pid 721] <... prctl resumed>) = 0 [pid 720] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 721] setpgid(0, 0 [pid 300] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 720] <... symlink resumed>) = 0 executing program [pid 300] openat(AT_FDCWD, "./105/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 721] <... setpgid resumed>) = 0 [pid 720] write(1, "executing program\n", 18 [pid 300] <... openat resumed>) = 4 [pid 721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 720] <... write resumed>) = 18 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 720] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./105/binderfs2" [pid 720] <... mkdirat resumed>) = 0 [pid 721] <... openat resumed>) = 3 [pid 720] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 721] write(3, "1000", 4) = 4 [pid 300] umount2("./105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] unlink("./105/binderfs") = 0 [pid 298] umount2("./104", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] close(3 [pid 721] close(3 [pid 720] <... mount resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] newfstatat(3, "", [pid 721] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 721] symlink("/dev/binderfs", "./binderfs" [pid 300] rmdir("./105" [pid 298] getdents64(3, [pid 721] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 721] write(1, "executing program\n", 18 [pid 720] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 721] <... write resumed>) = 18 [pid 300] mkdir("./106", 0777 [pid 298] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 721] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 720] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 721] <... mkdirat resumed>) = 0 [pid 298] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 720] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 720] <... exit_group resumed>) = ? [pid 721] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./104/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 722 attached ) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./104/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 722] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 722 [pid 298] <... openat resumed>) = 4 [pid 722] <... set_robust_list resumed>) = 0 [pid 720] +++ exited with 0 +++ [pid 722] chdir("./106" [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 722] <... chdir resumed>) = 0 [pid 299] umount2("./105", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 721] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 722] <... prctl resumed>) = 0 [pid 299] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 722] setpgid(0, 0 [pid 299] <... openat resumed>) = 3 [pid 298] close(4 [pid 722] <... setpgid resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 721] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(3, "", [pid 298] rmdir("./104/binderfs2" [pid 721] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 722] <... openat resumed>) = 3 [pid 721] exit_group(0 [pid 299] getdents64(3, [pid 722] write(3, "1000", 4 [pid 721] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 722] <... write resumed>) = 4 [pid 299] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 722] close(3 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 722] <... close resumed>) = 0 [pid 721] +++ exited with 0 +++ [pid 722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 722] write(1, "executing program\n", 18 [pid 298] newfstatat(AT_FDCWD, "./104/binderfs", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 722] <... write resumed>) = 18 [pid 299] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 722] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./104/binderfs" [pid 299] newfstatat(AT_FDCWD, "./105/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 722] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 722] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 722] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./105/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] close(3) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./104" [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... rmdir resumed>) = 0 [pid 722] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] getdents64(4, [pid 298] mkdir("./105", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 722] exit_group(0 [pid 299] close(4 [pid 298] <... mkdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./105/binderfs2") = 0 [pid 722] <... exit_group resumed>) = ? [pid 722] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 723 attached [pid 300] umount2("./106", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./105/binderfs", [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 723 [pid 300] newfstatat(3, "", [pid 299] unlink("./105/binderfs" [pid 723] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... unlink resumed>) = 0 [pid 723] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 723] chdir("./105" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 723] <... chdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = 0 [pid 299] close(3 [pid 723] <... prctl resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 723] setpgid(0, 0) = 0 [pid 723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... close resumed>) = 0 [pid 723] <... openat resumed>) = 3 [pid 297] umount2("./103", MNT_FORCE|UMOUNT_NOFOLLOW [pid 723] write(3, "1000", 4 [pid 300] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./105" [pid 723] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 723] close(3 [pid 300] newfstatat(AT_FDCWD, "./106/binderfs2", [pid 723] <... close resumed>) = 0 [pid 723] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./106", 0777 [pid 297] <... openat resumed>) = 3 [pid 723] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 300] openat(AT_FDCWD, "./106/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] getdents64(3, [pid 300] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, ./strace-static-x86_64: Process 724 attached [pid 723] write(1, "executing program\n", 18executing program [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 723] <... write resumed>) = 18 [pid 724] set_robust_list(0x5555726b0660, 24) = 0 [pid 723] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 724] chdir("./106" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./106/binderfs2" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 724 [pid 297] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 724] <... chdir resumed>) = 0 [pid 723] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 724] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 723] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./103/binderfs2", [pid 724] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./106/binderfs", [pid 297] umount2("./103/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./106/binderfs" [pid 724] setpgid(0, 0 [pid 723] <... mount resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] openat(AT_FDCWD, "./103/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 724] <... setpgid resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(3 [pid 297] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./106" [pid 724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 723] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 724] <... openat resumed>) = 3 [pid 724] write(3, "1000", 4 [pid 297] close(4 [pid 723] <... openat resumed>) = 3 [pid 724] <... write resumed>) = 4 [pid 724] close(3 [pid 297] <... close resumed>) = 0 [pid 724] <... close resumed>) = 0 [pid 724] symlink("/dev/binderfs", "./binderfs" [pid 297] rmdir("./103/binderfs2" [pid 723] exit_group(0 [pid 724] <... symlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 723] <... exit_group resumed>) = ? [pid 300] mkdir("./107", 0777) = 0 [pid 297] umount2("./103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./103/binderfs", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 724] write(1, "executing program\n", 18 [pid 723] +++ exited with 0 +++ [pid 724] <... write resumed>) = 18 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 724] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 725 attached [pid 297] unlink("./103/binderfs") = 0 [pid 297] getdents64(3, [pid 725] set_robust_list(0x5555726b0660, 24 [pid 724] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 725 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 725] <... set_robust_list resumed>) = 0 [pid 297] close(3 [pid 725] chdir("./107" [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./103" [pid 725] <... chdir resumed>) = 0 [pid 724] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir 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 297] mkdir("./104", 0777 [pid 724] <... mount resumed>) = 0 [pid 725] write(3, "1000", 4 [pid 724] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 725] <... write resumed>) = 4 [pid 725] close(3 [pid 724] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 725] <... close resumed>) = 0 [pid 725] symlink("/dev/binderfs", "./binderfs") = 0 [pid 724] exit_group(0 [pid 725] write(1, "executing program\n", 18executing program [pid 724] <... exit_group resumed>) = ? [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 725] <... write resumed>) = 18 ./strace-static-x86_64: Process 726 attached [pid 725] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 726] set_robust_list(0x5555726b0660, 24) = 0 [pid 725] <... mkdirat resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 726 [pid 726] chdir("./104" [pid 725] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 724] +++ exited with 0 +++ [pid 726] <... chdir resumed>) = 0 [pid 725] <... mount resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 725] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 725] <... openat resumed>) = 3 [pid 726] setpgid(0, 0) = 0 [pid 726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 725] exit_group(0) = ? [pid 726] <... openat resumed>) = 3 [pid 726] write(3, "1000", 4) = 4 [pid 725] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 726] close(3) = 0 [pid 726] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./105", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 726] write(1, "executing program\n", 18executing program ) = 18 [pid 298] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 726] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(3, "", [pid 726] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./107", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 726] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 726] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 726] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 298] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./106", MNT_FORCE|UMOUNT_NOFOLLOW [pid 726] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./107/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./105/binderfs2", [pid 726] <... exit_group resumed>) = ? [pid 300] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 726] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./107/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(4, "", [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] openat(AT_FDCWD, "./105/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 299] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./107/binderfs2") = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./107/binderfs", [pid 299] newfstatat(AT_FDCWD, "./106/binderfs2", [pid 298] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 300] unlink("./107/binderfs" [pid 299] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./105/binderfs2" [pid 299] openat(AT_FDCWD, "./106/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(4, "", [pid 300] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 298] umount2("./105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./107" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./105/binderfs", [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./106/binderfs2" [pid 298] unlink("./105/binderfs" [pid 300] mkdir("./108", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 297] umount2("./104", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./105" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./106/binderfs", [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./106/binderfs" [pid 298] mkdir("./106", 0777 [pid 297] getdents64(3, ./strace-static-x86_64: Process 727 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 727 [pid 299] <... unlink resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = 0 [pid 727] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 728 attached [pid 727] chdir("./108" [pid 299] close(3) = 0 [pid 299] rmdir("./106" [pid 728] set_robust_list(0x5555726b0660, 24 [pid 727] <... chdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] setpgid(0, 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 727] <... setpgid resumed>) = 0 [pid 728] <... set_robust_list resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./104/binderfs2", [pid 728] chdir("./106" [pid 727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 728 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 728] <... chdir resumed>) = 0 [pid 727] <... openat resumed>) = 3 [pid 297] umount2("./104/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] mkdir("./107", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 728] <... prctl resumed>) = 0 [pid 727] write(3, "1000", 4 [pid 299] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./104/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 728] setpgid(0, 0 [pid 727] <... write resumed>) = 4 [pid 297] <... openat resumed>) = 4 [pid 727] close(3 [pid 297] newfstatat(4, "", [pid 727] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 728] <... setpgid resumed>) = 0 [pid 727] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(4, [pid 728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 728] <... openat resumed>) = 3 [pid 727] <... symlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, ./strace-static-x86_64: Process 729 attached [pid 728] write(3, "1000", 4 [pid 727] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 728] <... write resumed>) = 4 [pid 297] close(4) = 0 executing program [pid 297] rmdir("./104/binderfs2") = 0 [pid 728] close(3) = 0 [pid 728] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] umount2("./104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 728] write(1, "executing program\n", 18 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 729 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 728] <... write resumed>) = 18 [pid 728] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(AT_FDCWD, "./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./104/binderfs" [pid 728] <... mkdirat resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 728] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] rmdir("./104") = 0 [pid 728] <... mount resumed>) = 0 [pid 297] mkdir("./105", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 728] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 ./strace-static-x86_64: Process 730 attached [pid 728] exit_group(0) = ? [pid 728] +++ exited with 0 +++ [pid 730] set_robust_list(0x5555726b0660, 24 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 730] <... set_robust_list resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 730] chdir("./105" [pid 298] <... restart_syscall resumed>) = 0 [pid 730] <... chdir resumed>) = 0 [pid 730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 730 [pid 730] <... prctl resumed>) = 0 [pid 298] umount2("./106", MNT_FORCE|UMOUNT_NOFOLLOW [pid 730] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 730] <... setpgid resumed>) = 0 [pid 298] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 3 [pid 730] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 730] write(3, "1000", 4 [pid 298] getdents64(3, [pid 730] <... write resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 730] close(3 [pid 298] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program executing program [pid 730] <... close resumed>) = 0 [pid 730] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 730] <... symlink resumed>) = 0 [pid 730] write(1, "executing program\n", 18) = 18 [pid 729] set_robust_list(0x5555726b0660, 24 [pid 727] <... write resumed>) = 18 [pid 730] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 729] <... set_robust_list resumed>) = 0 [pid 730] <... mkdirat resumed>) = 0 [pid 729] chdir("./107" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./106/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 727] <... mkdirat resumed>) = 0 [pid 729] <... chdir resumed>) = 0 [pid 729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 730] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 729] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 730] <... mount resumed>) = 0 [pid 298] openat(AT_FDCWD, "./106/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 729] setpgid(0, 0 [pid 727] <... mount resumed>) = 0 [pid 729] <... setpgid resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 729] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 729] write(3, "1000", 4) = 4 [pid 298] getdents64(4, [pid 729] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 730] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 729] <... close resumed>) = 0 [pid 298] close(4 [pid 730] <... openat resumed>) = 3 [pid 729] symlink("/dev/binderfs", "./binderfs" [pid 298] <... close resumed>) = 0 [pid 730] exit_group(0 [pid 298] rmdir("./106/binderfs2" [pid 729] <... symlink resumed>) = 0 [pid 730] <... exit_group resumed>) = ? [pid 729] write(1, "executing program\n", 18 executing program [pid 727] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... rmdir resumed>) = 0 [pid 730] +++ exited with 0 +++ [pid 729] <... write resumed>) = 18 [pid 729] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 727] <... openat resumed>) = 3 [pid 298] umount2("./106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./106/binderfs", [pid 729] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 729] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 727] exit_group(0 [pid 298] unlink("./106/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./106" [pid 729] <... mount resumed>) = 0 [pid 727] <... exit_group resumed>) = ? [pid 729] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./107", 0777 [pid 297] <... restart_syscall resumed>) = 0 [pid 727] +++ exited with 0 +++ [pid 729] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... mkdir resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 729] exit_group(0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 729] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 731 attached [pid 297] umount2("./105", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 731] set_robust_list(0x5555726b0660, 24 [pid 297] newfstatat(3, "", [pid 731] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 731] chdir("./107" [pid 729] +++ exited with 0 +++ [pid 297] getdents64(3, [pid 731] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 731 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 731] <... prctl resumed>) = 0 [pid 731] setpgid(0, 0 [pid 297] <... umount2 resumed>) = 0 [pid 731] <... setpgid resumed>) = 0 [pid 731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 731] write(3, "1000", 4 [pid 297] newfstatat(AT_FDCWD, "./105/binderfs2", [pid 731] <... write resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 731] close(3) = 0 [pid 297] umount2("./105/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 731] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 731] <... symlink resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./105/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./107", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 731] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 731] <... write resumed>) = 18 [pid 299] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 731] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 731] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] umount2("./108", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 731] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./105/binderfs2" [pid 731] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./107/binderfs2", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./107/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 731] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./105/binderfs", [pid 731] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./105/binderfs" [pid 731] exit_group(0 [pid 299] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 731] <... exit_group resumed>) = ? [pid 300] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 731] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 297] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./108/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(4 [pid 297] close(3 [pid 300] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./107/binderfs2" [pid 297] rmdir("./105" [pid 300] openat(AT_FDCWD, "./108/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./107", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 300] getdents64(4, [pid 299] umount2("./107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./106", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./107/binderfs", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 299] unlink("./107/binderfs" [pid 298] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./108/binderfs2" [pid 299] <... unlink resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] getdents64(3, ./strace-static-x86_64: Process 732 attached 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] close(3 [pid 300] newfstatat(AT_FDCWD, "./108/binderfs", [pid 299] <... close resumed>) = 0 [pid 298] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./107" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 732 [pid 732] set_robust_list(0x5555726b0660, 24 [pid 300] unlink("./108/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./107/binderfs2", [pid 732] <... set_robust_list resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] mkdir("./108", 0777) = 0 [pid 732] chdir("./106") = 0 [pid 298] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 732] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./107/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 733 attached [pid 732] setpgid(0, 0 [pid 300] close(3 [pid 298] <... openat resumed>) = 4 [pid 732] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 733] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] rmdir("./108" [pid 298] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 733 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 732] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 733] chdir("./108" [pid 732] write(3, "1000", 4 [pid 300] mkdir("./109", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 733] <... chdir resumed>) = 0 [pid 732] <... write resumed>) = 4 [pid 300] <... mkdir resumed>) = 0 [pid 298] close(4 [pid 733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 732] close(3 [pid 298] <... close resumed>) = 0 [pid 733] setpgid(0, 0 [pid 732] <... close resumed>) = 0 [pid 732] symlink("/dev/binderfs", "./binderfs" [pid 733] <... setpgid resumed>) = 0 [pid 298] rmdir("./107/binderfs2" [pid 733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 732] <... symlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 734 attached [pid 733] <... openat resumed>) = 3 [pid 732] write(1, "executing program\n", 18 [pid 298] umount2("./107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./107/binderfs", executing program {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 733] write(3, "1000", 4 [pid 732] <... write resumed>) = 18 [pid 298] unlink("./107/binderfs" [pid 734] set_robust_list(0x5555726b0660, 24 [pid 733] <... write resumed>) = 4 [pid 732] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... unlink resumed>) = 0 [pid 734] <... set_robust_list resumed>) = 0 [pid 733] close(3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 734 [pid 298] getdents64(3, [pid 733] <... close resumed>) = 0 [pid 733] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./107" [pid 733] <... symlink resumed>) = 0 [pid 734] chdir("./109" [pid 298] <... rmdir resumed>) = 0 [pid 734] <... chdir resumed>) = 0 [pid 734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 734] setpgid(0, 0 [pid 733] write(1, "executing program\n", 18 [pid 732] <... mkdirat resumed>) = 0 [pid 733] <... write resumed>) = 18 [pid 734] <... setpgid resumed>) = 0 [pid 734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] mkdir("./108", 0777 [pid 733] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 732] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 734] <... openat resumed>) = 3 [pid 733] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 734] write(3, "1000", 4) = 4 [pid 734] close(3) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 734] symlink("/dev/binderfs", "./binderfs" [pid 733] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 732] <... mount resumed>) = 0 executing program ./strace-static-x86_64: Process 735 attached [pid 734] <... symlink resumed>) = 0 [pid 734] write(1, "executing program\n", 18) = 18 [pid 734] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 735 [pid 733] <... mount resumed>) = 0 [pid 735] set_robust_list(0x5555726b0660, 24 [pid 734] <... mkdirat resumed>) = 0 [pid 732] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 735] <... set_robust_list resumed>) = 0 [pid 734] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 732] <... openat resumed>) = 3 [pid 735] chdir("./108" [pid 732] exit_group(0 [pid 735] <... chdir resumed>) = 0 [pid 735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 735] setpgid(0, 0 [pid 732] <... exit_group resumed>) = ? [pid 735] <... setpgid resumed>) = 0 [pid 735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 733] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 734] <... mount resumed>) = 0 [pid 734] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 734] exit_group(0) = ? [pid 733] <... openat resumed>) = 3 [pid 735] <... openat resumed>) = 3 [pid 735] write(3, "1000", 4 [pid 734] +++ exited with 0 +++ [pid 733] exit_group(0 [pid 735] <... write resumed>) = 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 735] close(3) = 0 [pid 733] <... exit_group resumed>) = ? [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 735] symlink("/dev/binderfs", "./binderfs" [pid 732] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 733] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 735] <... symlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 735] write(1, "executing program\n", 18executing program ) = 18 [pid 735] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./109", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 735] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 735] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(AT_FDCWD, "./109/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./109/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 735] <... mount resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 735] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./109/binderfs2" [pid 297] <... restart_syscall resumed>) = 0 [pid 735] <... openat resumed>) = 3 [pid 735] exit_group(0) = ? [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./106", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./109/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./109/binderfs" [pid 297] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(3) = 0 [pid 300] rmdir("./109" [pid 297] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 735] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] mkdir("./110", 0777) = 0 [pid 297] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./106/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./106/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./106/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 736 attached [pid 736] set_robust_list(0x5555726b0660, 24 [pid 297] <... openat resumed>) = 4 [pid 736] <... set_robust_list resumed>) = 0 [pid 299] umount2("./108", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 736] chdir("./110" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 736 [pid 299] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(3, "", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 297] close(4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... close resumed>) = 0 [pid 736] <... chdir resumed>) = 0 [pid 736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] rmdir("./106/binderfs2" [pid 736] <... prctl resumed>) = 0 [pid 736] setpgid(0, 0) = 0 [pid 299] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 736] write(3, "1000", 4 [pid 297] umount2("./106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 736] <... write resumed>) = 4 [pid 736] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 736] <... close resumed>) = 0 [pid 299] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./106/binderfs", [pid 736] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./106/binderfs" [pid 736] <... symlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./108/binderfs2", [pid 297] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 299] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./108/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 299] <... openat resumed>) = 4 [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./106"executing program [pid 736] write(1, "executing program\n", 18 [pid 299] getdents64(4, [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 736] <... write resumed>) = 18 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 736] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] umount2("./108", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./108/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 736] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./107", 0777 [pid 736] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 299] umount2("./108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 736] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 736] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] unlink("./108/binderfs" [pid 298] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 737 attached [pid 736] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 737 [pid 736] exit_group(0 [pid 737] set_robust_list(0x5555726b0660, 24 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 737] <... set_robust_list resumed>) = 0 [pid 736] <... exit_group resumed>) = ? [pid 299] <... close resumed>) = 0 [pid 737] chdir("./107" [pid 298] newfstatat(AT_FDCWD, "./108/binderfs2", [pid 299] rmdir("./108" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 737] <... chdir resumed>) = 0 [pid 736] +++ exited with 0 +++ [pid 737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] mkdir("./109", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 737] <... prctl resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... mkdir resumed>) = 0 [pid 737] setpgid(0, 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 737] <... setpgid resumed>) = 0 [pid 298] openat(AT_FDCWD, "./108/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 4 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(4, "", ./strace-static-x86_64: Process 738 attached [pid 737] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 737] write(3, "1000", 4) = 4 [pid 298] getdents64(4, [pid 738] set_robust_list(0x5555726b0660, 24 [pid 737] close(3) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 738] <... set_robust_list resumed>) = 0 [pid 737] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 738 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 738] chdir("./109" [pid 298] close(4) = 0 [pid 298] rmdir("./108/binderfs2" [pid 738] <... chdir resumed>) = 0 [pid 737] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./108/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./108" [pid 738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 737] write(1, "executing program\n", 18 [pid 738] <... prctl resumed>) = 0 executing program [pid 738] setpgid(0, 0 [pid 737] <... write resumed>) = 18 [pid 738] <... setpgid resumed>) = 0 [pid 737] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./109", 0777 [pid 737] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 738] <... openat resumed>) = 3 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 738] write(3, "1000", 4 [pid 737] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 738] <... write resumed>) = 4 [pid 738] close(3./strace-static-x86_64: Process 739 attached ) = 0 [pid 739] set_robust_list(0x5555726b0660, 24 [pid 738] symlink("/dev/binderfs", "./binderfs" [pid 739] <... set_robust_list resumed>) = 0 [pid 739] chdir("./109" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 739 [pid 738] <... symlink resumed>) = 0 [pid 738] write(1, "executing program\n", 18) = 18 [pid 737] <... mount resumed>) = 0 [pid 739] <... chdir resumed>) = 0 [pid 738] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 739] setpgid(0, 0 [pid 737] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 739] <... setpgid resumed>) = 0 [pid 739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 737] <... openat resumed>) = 3 [pid 737] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 [pid 739] <... openat resumed>) = 3 [pid 739] write(3, "1000", 4) = 4 [pid 300] umount2("./110", MNT_FORCE|UMOUNT_NOFOLLOW [pid 739] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 739] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 739] symlink("/dev/binderfs", "./binderfs" [pid 738] <... mkdirat resumed>) = 0 [pid 737] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 739] <... symlink resumed>) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 739] write(1, "executing program\n", 18) = 18 [pid 300] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 739] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 737] +++ exited with 0 +++ [pid 738] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 739] <... mkdirat resumed>) = 0 [pid 300] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./110/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 739] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 738] <... mount resumed>) = 0 [pid 300] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./110/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 739] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 739] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./110/binderfs2" [pid 738] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 739] <... exit_group resumed>) = ? [pid 738] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 738] exit_group(0) = ? [pid 739] +++ exited with 0 +++ [pid 300] umount2("./110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 738] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./110/binderfs", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] unlink("./110/binderfs" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... unlink resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./110") = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./109", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./111", 0777 [pid 298] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./107", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(3, "", [pid 297] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, [pid 298] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 740 attached [pid 740] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./109/binderfs2", [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 740 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 740] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 740] chdir("./111" [pid 298] openat(AT_FDCWD, "./109/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 740] <... chdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./107/binderfs2", [pid 740] <... prctl resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 740] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./109", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./107/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 740] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./107/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 740] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 298] close(4 [pid 297] <... openat resumed>) = 4 [pid 740] write(3, "1000", 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 740] <... write resumed>) = 4 [pid 740] close(3 [pid 299] getdents64(3, [pid 298] rmdir("./109/binderfs2" [pid 297] newfstatat(4, "", [pid 740] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 740] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 740] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 740] write(1, "executing program\n", 18) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 740] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./109/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4) = 0 [pid 298] unlink("./109/binderfs" [pid 297] rmdir("./107/binderfs2" [pid 740] <... mkdirat resumed>) = 0 [pid 299] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] newfstatat(AT_FDCWD, "./109/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 299] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./109" [pid 297] umount2("./107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 740] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./109/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] mkdir("./110", 0777 [pid 297] newfstatat(AT_FDCWD, "./107/binderfs", [pid 740] <... mount resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./107/binderfs") = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 740] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] close(4 [pid 297] close(3 [pid 299] <... close resumed>) = 0 [pid 740] <... openat resumed>) = 3 [pid 299] rmdir("./109/binderfs2"./strace-static-x86_64: Process 741 attached [pid 740] exit_group(0 [pid 297] <... close resumed>) = 0 [pid 741] set_robust_list(0x5555726b0660, 24 [pid 740] <... exit_group resumed>) = ? [pid 297] rmdir("./107" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 741 [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./108", 0777 [pid 741] <... set_robust_list resumed>) = 0 [pid 740] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./109/binderfs", [pid 741] chdir("./110" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 741] <... chdir resumed>) = 0 [pid 741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 741] <... prctl resumed>) = 0 [pid 741] setpgid(0, 0 [pid 299] unlink("./109/binderfs" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 741] <... setpgid resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 741] <... openat resumed>) = 3 ./strace-static-x86_64: Process 742 attached [pid 741] write(3, "1000", 4) = 4 [pid 299] rmdir("./109" [pid 742] set_robust_list(0x5555726b0660, 24 [pid 741] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 741] <... close resumed>) = 0 executing program [pid 742] <... set_robust_list resumed>) = 0 [pid 741] symlink("/dev/binderfs", "./binderfs" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 742 [pid 299] mkdir("./110", 0777 [pid 741] <... symlink resumed>) = 0 [pid 741] write(1, "executing program\n", 18 [pid 742] chdir("./108" [pid 741] <... write resumed>) = 18 [pid 299] <... mkdir resumed>) = 0 [pid 742] <... chdir resumed>) = 0 [pid 741] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 741] <... mkdirat resumed>) = 0 [pid 742] <... prctl resumed>) = 0 [pid 742] setpgid(0, 0 [pid 741] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 742] <... setpgid resumed>) = 0 [pid 742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 743 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 743 [pid 743] set_robust_list(0x5555726b0660, 24 [pid 742] <... openat resumed>) = 3 [pid 742] write(3, "1000", 4 [pid 743] <... set_robust_list resumed>) = 0 [pid 742] <... write resumed>) = 4 [pid 743] chdir("./110" [pid 742] close(3 [pid 743] <... chdir resumed>) = 0 [pid 742] <... close resumed>) = 0 [pid 743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 742] symlink("/dev/binderfs", "./binderfs" [pid 743] <... prctl resumed>) = 0 [pid 743] setpgid(0, 0) = 0 [pid 742] <... symlink resumed>) = 0 [pid 743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program executing program [pid 742] write(1, "executing program\n", 18 [pid 743] <... openat resumed>) = 3 [pid 742] <... write resumed>) = 18 [pid 741] <... mount resumed>) = 0 [pid 743] write(3, "1000", 4) = 4 [pid 743] close(3) = 0 [pid 743] symlink("/dev/binderfs", "./binderfs") = 0 [pid 743] write(1, "executing program\n", 18) = 18 [pid 742] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 741] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 743] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 741] <... openat resumed>) = 3 [pid 743] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 742] <... mkdirat resumed>) = 0 [pid 741] exit_group(0) = ? [pid 743] <... mount resumed>) = 0 [pid 743] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 743] exit_group(0) = ? [pid 741] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 743] +++ exited with 0 +++ [pid 742] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... restart_syscall resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./111", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] umount2("./110", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 742] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(3, [pid 742] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 742] <... openat resumed>) = 3 [pid 742] exit_group(0 [pid 298] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 742] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./111/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 742] +++ exited with 0 +++ [pid 300] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./110/binderfs2", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] openat(AT_FDCWD, "./111/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... openat resumed>) = 4 [pid 298] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./110/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./108", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(4 [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./111/binderfs2" [pid 297] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(3, [pid 299] <... restart_syscall resumed>) = 0 [pid 298] close(4) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./110/binderfs2" [pid 297] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./111/binderfs", [pid 298] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./110", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 300] unlink("./111/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./110/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./111" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] unlink("./110/binderfs" [pid 297] newfstatat(AT_FDCWD, "./108/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./108/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 300] mkdir("./112", 0777 [pid 297] openat(AT_FDCWD, "./108/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] close(3 [pid 297] newfstatat(4, "", [pid 299] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./110" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(AT_FDCWD, "./110/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, ./strace-static-x86_64: Process 744 attached [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./111", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 744] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 744 [pid 299] openat(AT_FDCWD, "./110/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 297] close(4 [pid 744] <... set_robust_list resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./108/binderfs2" [pid 744] chdir("./112" [pid 297] <... rmdir resumed>) = 0 [pid 299] newfstatat(4, "", [pid 744] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 745 attached [pid 744] <... prctl resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 744] setpgid(0, 0 [pid 299] getdents64(4, [pid 744] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./108/binderfs", [pid 745] set_robust_list(0x5555726b0660, 24 [pid 744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 745] <... set_robust_list resumed>) = 0 [pid 299] close(4 [pid 744] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./110/binderfs2" [pid 297] unlink("./108/binderfs" [pid 745] chdir("./111" [pid 744] write(3, "1000", 4 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 745 [pid 297] <... unlink resumed>) = 0 [pid 745] <... chdir resumed>) = 0 [pid 744] <... write resumed>) = 4 [pid 745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 744] close(3) = 0 [pid 745] <... prctl resumed>) = 0 [pid 744] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 745] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./110/binderfs", [pid 297] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 745] <... setpgid resumed>) = 0 [pid 744] <... symlink resumed>) = 0 [pid 299] unlink("./110/binderfs" [pid 297] rmdir("./108"executing program [pid 745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 744] write(1, "executing program\n", 18 [pid 299] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 744] <... write resumed>) = 18 [pid 299] getdents64(3, [pid 744] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 745] <... openat resumed>) = 3 [pid 299] close(3) = 0 [pid 297] mkdir("./109", 0777 [pid 299] rmdir("./110" [pid 297] <... mkdir resumed>) = 0 [pid 745] write(3, "1000", 4 [pid 744] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 745] <... write resumed>) = 4 [pid 744] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 745] close(3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 745] <... close resumed>) = 0 [pid 745] symlink("/dev/binderfs", "./binderfs" [pid 299] mkdir("./111", 0777 [pid 745] <... symlink resumed>) = 0 [pid 745] write(1, "executing program\n", 18) = 18 executing program ./strace-static-x86_64: Process 746 attached [pid 745] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 746] set_robust_list(0x5555726b0660, 24 [pid 745] <... mkdirat resumed>) = 0 [pid 746] <... set_robust_list resumed>) = 0 [pid 746] chdir("./109" [pid 745] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 746] <... chdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 746 ./strace-static-x86_64: Process 747 attached [pid 746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 745] <... mount resumed>) = 0 [pid 745] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 746] <... prctl resumed>) = 0 [pid 746] setpgid(0, 0 [pid 745] <... openat resumed>) = 3 [pid 747] set_robust_list(0x5555726b0660, 24 [pid 745] exit_group(0 [pid 746] <... setpgid resumed>) = 0 [pid 745] <... exit_group resumed>) = ? [pid 747] <... set_robust_list resumed>) = 0 [pid 746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 747] chdir("./111" [pid 746] <... openat resumed>) = 3 [pid 747] <... chdir resumed>) = 0 [pid 746] write(3, "1000", 4 [pid 747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 746] <... write resumed>) = 4 [pid 747] <... prctl resumed>) = 0 [pid 746] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 747 [pid 745] +++ exited with 0 +++ [pid 747] setpgid(0, 0 [pid 746] <... close resumed>) = 0 [pid 747] <... setpgid resumed>) = 0 [pid 746] symlink("/dev/binderfs", "./binderfs" [pid 744] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 746] <... symlink resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 747] <... openat resumed>) = 3 executing program [pid 746] write(1, "executing program\n", 18 [pid 744] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 747] write(3, "1000", 4 [pid 746] <... write resumed>) = 18 [pid 747] <... write resumed>) = 4 [pid 746] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 744] <... openat resumed>) = 3 [pid 747] close(3) = 0 [pid 744] exit_group(0 [pid 747] symlink("/dev/binderfs", "./binderfs" [pid 746] <... mkdirat resumed>) = 0 [pid 744] <... exit_group resumed>) = ? [pid 747] <... symlink resumed>) = 0 [pid 747] write(1, "executing program\n", 18executing program ) = 18 [pid 747] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 746] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 747] <... mkdirat resumed>) = 0 [pid 746] <... mount resumed>) = 0 [pid 744] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./111", MNT_FORCE|UMOUNT_NOFOLLOW [pid 747] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", [pid 746] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 746] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 746] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 747] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 746] <... exit_group resumed>) = ? [pid 298] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 747] <... openat resumed>) = 3 [pid 746] +++ exited with 0 +++ [pid 747] exit_group(0 [pid 298] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 747] <... exit_group resumed>) = ? [pid 298] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./109", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 747] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(AT_FDCWD, "./111/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./111", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./109/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./109/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./109/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./112", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./111/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 300] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 297] newfstatat(4, "", [pid 300] newfstatat(3, "", [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] close(4 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./109/binderfs2" [pid 298] <... close resumed>) = 0 [pid 299] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./111/binderfs2" [pid 300] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./112/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./112/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 297] unlink("./109/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 297] close(3 [pid 300] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./111/binderfs2", [pid 298] umount2("./111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./112/binderfs2" [pid 299] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./109" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./111/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./111/binderfs", [pid 300] umount2("./112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./110", 0777 [pid 300] newfstatat(AT_FDCWD, "./112/binderfs", [pid 299] newfstatat(4, "", [pid 298] unlink("./111/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] unlink("./112/binderfs" [pid 298] <... unlink resumed>) = 0 [pid 299] getdents64(4, [pid 298] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 299] close(4 [pid 298] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... close resumed>) = 0 [pid 298] rmdir("./111"./strace-static-x86_64: Process 748 attached [pid 300] close(3 [pid 299] rmdir("./111/binderfs2" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./112" [pid 298] <... rmdir resumed>) = 0 [pid 748] set_robust_list(0x5555726b0660, 24 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 748 [pid 748] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] mkdir("./112", 0777 [pid 748] chdir("./110" [pid 300] mkdir("./113", 0777 [pid 748] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 748] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./111/binderfs", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 748] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 749 attached ./strace-static-x86_64: Process 750 attached [pid 749] set_robust_list(0x5555726b0660, 24 [pid 750] set_robust_list(0x5555726b0660, 24 [pid 749] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 749 [pid 750] <... set_robust_list resumed>) = 0 [pid 749] chdir("./113" [pid 748] <... setpgid resumed>) = 0 [pid 299] unlink("./111/binderfs" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 750 [pid 750] chdir("./112" [pid 749] <... chdir resumed>) = 0 [pid 748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 750] <... chdir resumed>) = 0 [pid 749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... unlink resumed>) = 0 [pid 749] <... prctl resumed>) = 0 [pid 299] getdents64(3, [pid 750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 749] setpgid(0, 0 [pid 750] <... prctl resumed>) = 0 [pid 749] <... setpgid resumed>) = 0 [pid 750] setpgid(0, 0 [pid 749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 750] <... setpgid resumed>) = 0 [pid 750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 750] <... openat resumed>) = 3 [pid 749] <... openat resumed>) = 3 [pid 748] <... openat resumed>) = 3 [pid 299] close(3 [pid 750] write(3, "1000", 4) = 4 [pid 749] write(3, "1000", 4 [pid 748] write(3, "1000", 4 [pid 299] <... close resumed>) = 0 [pid 750] close(3 [pid 749] <... write resumed>) = 4 [pid 748] <... write resumed>) = 4 [pid 299] rmdir("./111" [pid 750] <... close resumed>) = 0 [pid 749] close(3 [pid 748] close(3 [pid 750] symlink("/dev/binderfs", "./binderfs" [pid 749] <... close resumed>) = 0 [pid 750] <... symlink resumed>) = 0 [pid 749] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 749] <... symlink resumed>) = 0 [pid 748] <... close resumed>) = 0 [pid 299] mkdir("./112", 0777executing program executing program [pid 748] symlink("/dev/binderfs", "./binderfs" [pid 750] write(1, "executing program\n", 18 [pid 749] write(1, "executing program\n", 18 [pid 750] <... write resumed>) = 18 [pid 749] <... write resumed>) = 18 [pid 750] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 749] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 748] <... symlink resumed>) = 0 executing program [pid 299] <... mkdir resumed>) = 0 [pid 749] <... mkdirat resumed>) = 0 [pid 748] write(1, "executing program\n", 18 [pid 750] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 748] <... write resumed>) = 18 [pid 748] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 749] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 748] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 751 attached [pid 751] set_robust_list(0x5555726b0660, 24 [pid 750] <... mount resumed>) = 0 [pid 748] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 751] <... set_robust_list resumed>) = 0 [pid 750] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 749] <... mount resumed>) = 0 [pid 750] <... openat resumed>) = 3 [pid 749] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 748] <... mount resumed>) = 0 [pid 751] chdir("./112" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 751 [pid 750] exit_group(0 [pid 749] exit_group(0 [pid 751] <... chdir resumed>) = 0 [pid 751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 750] <... exit_group resumed>) = ? [pid 748] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 751] <... prctl resumed>) = 0 [pid 751] setpgid(0, 0 [pid 750] +++ exited with 0 +++ [pid 749] <... exit_group resumed>) = ? [pid 748] <... openat resumed>) = 3 [pid 751] <... setpgid resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 749] +++ exited with 0 +++ [pid 748] exit_group(0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 751] <... openat resumed>) = 3 [pid 748] <... exit_group resumed>) = ? [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 748] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 751] write(3, "1000", 4) = 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 751] close(3) = 0 [pid 751] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./113", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./112", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 751] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 751] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 751] <... write resumed>) = 18 [pid 300] newfstatat(3, "", [pid 751] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 751] <... mkdirat resumed>) = 0 [pid 298] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 751] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./113/binderfs2", [pid 298] newfstatat(AT_FDCWD, "./112/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./113/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 751] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./112/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 751] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(4, "", [pid 751] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 751] <... exit_group resumed>) = ? [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 751] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 300] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./112/binderfs2" [pid 297] umount2("./110", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./113/binderfs2" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 298] newfstatat(AT_FDCWD, "./112/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 298] unlink("./112/binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./113/binderfs", [pid 298] close(3) = 0 [pid 298] rmdir("./112" [pid 297] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] unlink("./113/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./113", 0777 [pid 297] newfstatat(AT_FDCWD, "./110/binderfs2", [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./110/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 297] openat(AT_FDCWD, "./110/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(3, [pid 297] getdents64(4, ./strace-static-x86_64: Process 752 attached [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 752] set_robust_list(0x5555726b0660, 24 [pid 300] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 752] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 752 [pid 300] rmdir("./113" [pid 297] close(4) = 0 [pid 297] rmdir("./110/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 752] chdir("./113" [pid 297] umount2("./110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 752] <... chdir resumed>) = 0 [pid 752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 752] <... prctl resumed>) = 0 [pid 300] mkdir("./114", 0777 [pid 297] newfstatat(AT_FDCWD, "./110/binderfs", [pid 752] setpgid(0, 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./110/binderfs") = 0 [pid 297] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 752] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./110" [pid 752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 752] <... openat resumed>) = 3 [pid 297] mkdir("./111", 0777) = 0 ./strace-static-x86_64: Process 753 attached [pid 753] set_robust_list(0x5555726b0660, 24) = 0 [pid 753] chdir("./114" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 752] write(3, "1000", 4 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 753 [pid 752] <... write resumed>) = 4 [pid 752] close(3 [pid 753] <... chdir resumed>) = 0 [pid 752] <... close resumed>) = 0 ./strace-static-x86_64: Process 754 attached [pid 753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 752] symlink("/dev/binderfs", "./binderfs" [pid 753] <... prctl resumed>) = 0 [pid 753] setpgid(0, 0) = 0 [pid 753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 752] <... symlink resumed>) = 0 [pid 299] umount2("./112", MNT_FORCE|UMOUNT_NOFOLLOW [pid 754] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 754] <... set_robust_list resumed>) = 0 [pid 753] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 754 [pid 753] write(3, "1000", 4 [pid 754] chdir("./111" [pid 753] <... write resumed>) = 4 [pid 753] close(3 [pid 299] <... openat resumed>) = 3 executing program [pid 754] <... chdir resumed>) = 0 [pid 752] write(1, "executing program\n", 18 [pid 299] newfstatat(3, "", [pid 754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 752] <... write resumed>) = 18 [pid 754] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 753] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 753] symlink("/dev/binderfs", "./binderfs" [pid 754] setpgid(0, 0 [pid 753] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 753] write(1, "executing program\n", 18) = 18 [pid 753] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 752] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 754] <... setpgid resumed>) = 0 [pid 299] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 753] <... mkdirat resumed>) = 0 [pid 753] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 754] <... openat resumed>) = 3 [pid 752] <... mkdirat resumed>) = 0 [pid 754] write(3, "1000", 4 [pid 299] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 753] <... mount resumed>) = 0 [pid 753] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 754] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 754] close(3 [pid 299] newfstatat(AT_FDCWD, "./112/binderfs2", [pid 754] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 754] symlink("/dev/binderfs", "./binderfs" [pid 752] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 753] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 753] exit_group(0) = ? [pid 754] <... symlink resumed>) = 0 [pid 753] +++ exited with 0 +++ [pid 752] <... mount resumed>) = 0 [pid 299] openat(AT_FDCWD, "./112/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 754] write(1, "executing program\n", 18 [pid 299] <... openat resumed>) = 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(4, "", [pid 754] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 754] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 752] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 754] <... mkdirat resumed>) = 0 [pid 299] rmdir("./112/binderfs2" [pid 752] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 752] exit_group(0 [pid 754] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 752] <... exit_group resumed>) = ? [pid 299] umount2("./112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 754] <... mount resumed>) = 0 [pid 752] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(AT_FDCWD, "./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./112/binderfs" [pid 754] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... unlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./114", MNT_FORCE|UMOUNT_NOFOLLOW [pid 754] <... openat resumed>) = 3 [pid 299] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./112" [pid 754] exit_group(0) = ? [pid 300] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 754] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] mkdir("./113", 0777 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 755 attached [pid 300] newfstatat(AT_FDCWD, "./114/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 755] set_robust_list(0x5555726b0660, 24 [pid 298] <... restart_syscall resumed>) = 0 [pid 755] <... set_robust_list resumed>) = 0 [pid 755] chdir("./113" [pid 300] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 755 [pid 755] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] openat(AT_FDCWD, "./114/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./113", MNT_FORCE|UMOUNT_NOFOLLOW [pid 755] <... prctl resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 755] setpgid(0, 0 [pid 300] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 755] <... setpgid resumed>) = 0 [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] newfstatat(3, "", [pid 755] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 755] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 755] <... write resumed>) = 4 [pid 298] getdents64(3, [pid 755] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 755] <... close resumed>) = 0 [pid 298] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 755] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(4, [pid 755] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 755] write(1, "executing program\n", 18 [pid 300] close(4executing program [pid 755] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 755] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./114/binderfs2") = 0 [pid 300] umount2("./114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./113/binderfs2", [pid 755] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./114/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 755] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 755] <... mount resumed>) = 0 [pid 300] unlink("./114/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 298] openat(AT_FDCWD, "./113/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 300] close(3 [pid 297] umount2("./111", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./114" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 755] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(4, [pid 755] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./115", 0777 [pid 755] exit_group(0 [pid 298] close(4 [pid 297] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 755] <... exit_group resumed>) = ? [pid 298] rmdir("./113/binderfs2" [pid 755] +++ exited with 0 +++ [pid 300] <... mkdir resumed>) = 0 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./113/binderfs"./strace-static-x86_64: Process 756 attached ) = 0 [pid 756] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] getdents64(3, [pid 297] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 756 [pid 756] chdir("./115" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 756] <... chdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./113" [pid 297] <... umount2 resumed>) = 0 [pid 756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 756] <... prctl resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 756] setpgid(0, 0 [pid 297] newfstatat(AT_FDCWD, "./111/binderfs2", [pid 756] <... setpgid resumed>) = 0 [pid 756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] mkdir("./114", 0777 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./111/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 756] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./113", MNT_FORCE|UMOUNT_NOFOLLOW [pid 756] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./111/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 756] <... write resumed>) = 4 [pid 299] newfstatat(3, "", [pid 756] close(3) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(4, "", [pid 756] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(3, ./strace-static-x86_64: Process 757 attached [pid 756] <... symlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 757] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 757] <... set_robust_list resumed>) = 0 [pid 297] getdents64(4, [pid 756] write(1, "executing program\n", 18 [pid 757] chdir("./114" [pid 756] <... write resumed>) = 18 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 757 [pid 756] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 757] <... chdir resumed>) = 0 [pid 756] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 757] <... prctl resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 757] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./113/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 757] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 756] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 756] <... mount resumed>) = 0 [pid 299] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./111/binderfs2" [pid 299] openat(AT_FDCWD, "./113/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 756] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 757] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 297] umount2("./111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 757] write(3, "1000", 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 757] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 757] close(3 [pid 299] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./111/binderfs", [pid 757] <... close resumed>) = 0 [pid 756] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 757] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 756] <... exit_group resumed>) = ? [pid 299] getdents64(4, [pid 757] <... symlink resumed>) = 0 [pid 756] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] unlink("./111/binderfs") = 0 [pid 299] close(4 [pid 757] write(1, "executing program\n", 18 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 299] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 757] <... write resumed>) = 18 [pid 299] rmdir("./113/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./111" [pid 757] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./112", 0777 [pid 757] <... mkdirat resumed>) = 0 [pid 299] umount2("./113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 757] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./113/binderfs", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 758 attached [pid 757] <... mount resumed>) = 0 [pid 299] unlink("./113/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 758 [pid 758] set_robust_list(0x5555726b0660, 24 [pid 757] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 758] <... set_robust_list resumed>) = 0 [pid 299] close(3 [pid 758] chdir("./112" [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./113") = 0 [pid 299] mkdir("./114", 0777 [pid 757] <... openat resumed>) = 3 [pid 758] <... chdir resumed>) = 0 [pid 757] exit_group(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 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 757] <... exit_group resumed>) = ? [pid 758] <... openat resumed>) = 3 ./strace-static-x86_64: Process 759 attached [pid 759] set_robust_list(0x5555726b0660, 24) = 0 [pid 759] chdir("./114" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 759 [pid 757] +++ exited with 0 +++ [pid 758] write(3, "1000", 4 [pid 759] <... chdir resumed>) = 0 [pid 758] <... write resumed>) = 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 758] close(3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 759] <... prctl resumed>) = 0 [pid 759] setpgid(0, 0) = 0 [pid 758] <... close resumed>) = 0 [pid 758] symlink("/dev/binderfs", "./binderfs" [pid 759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 758] <... symlink resumed>) = 0 [pid 759] write(3, "1000", 4) = 4 [pid 759] close(3) = 0 [pid 759] symlink("/dev/binderfs", "./binderfs") = 0 [pid 759] write(1, "executing program\n", 18 [pid 758] write(1, "executing program\n", 18executing program executing program [pid 759] <... write resumed>) = 18 [pid 758] <... write resumed>) = 18 [pid 759] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 758] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 759] <... mkdirat resumed>) = 0 [pid 758] <... mkdirat resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 758] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 759] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./115", MNT_FORCE|UMOUNT_NOFOLLOW [pid 759] <... mount resumed>) = 0 [pid 758] <... mount resumed>) = 0 [pid 758] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] umount2("./114", MNT_FORCE|UMOUNT_NOFOLLOW [pid 759] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 759] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 759] exit_group(0 [pid 758] exit_group(0 [pid 298] newfstatat(3, "", [pid 758] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 3 [pid 759] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 759] +++ exited with 0 +++ [pid 758] +++ exited with 0 +++ [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./115/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./114/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./115/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./114/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 4 [pid 298] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 300] close(4) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./115/binderfs2" [pid 298] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./114/binderfs2" [pid 300] umount2("./115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] unlink("./115/binderfs" [pid 298] umount2("./114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./114/binderfs" [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] rmdir("./115" [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] close(3 [pid 300] mkdir("./116", 0777 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./114" [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./115", 0777 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 760 ./strace-static-x86_64: Process 760 attached [pid 760] set_robust_list(0x5555726b0660, 24 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 760] <... set_robust_list resumed>) = 0 [pid 760] chdir("./116"./strace-static-x86_64: Process 761 attached ) = 0 [pid 761] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 761 [pid 761] <... set_robust_list resumed>) = 0 [pid 760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 761] chdir("./115" [pid 760] <... prctl resumed>) = 0 [pid 761] <... chdir resumed>) = 0 [pid 761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 761] setpgid(0, 0 [pid 760] setpgid(0, 0 [pid 297] umount2("./112", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] <... setpgid resumed>) = 0 [pid 761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 760] <... setpgid resumed>) = 0 [pid 299] umount2("./114", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 761] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 761] write(3, "1000", 4 [pid 299] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 760] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 760] write(3, "1000", 4 [pid 299] newfstatat(3, "", [pid 297] <... openat resumed>) = 3 [pid 760] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 760] close(3 [pid 299] getdents64(3, [pid 297] newfstatat(3, "", [pid 760] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 760] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(3, [pid 760] <... symlink resumed>) = 0 [pid 299] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 761] <... write resumed>) = 4 executing program [pid 761] close(3 [pid 760] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] <... close resumed>) = 0 executing program [pid 760] <... write resumed>) = 18 [pid 761] symlink("/dev/binderfs", "./binderfs" [pid 760] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 761] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 761] write(1, "executing program\n", 18) = 18 [pid 299] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 760] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./114/binderfs2", [pid 297] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] <... mkdirat resumed>) = 0 [pid 760] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./112/binderfs2", [pid 299] openat(AT_FDCWD, "./114/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] umount2("./112/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./112/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 760] <... mount resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(4, "", [pid 299] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 299] rmdir("./114/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 761] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 760] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... rmdir resumed>) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./112/binderfs2") = 0 [pid 299] umount2("./114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./114/binderfs", [pid 761] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 760] <... openat resumed>) = 3 [pid 299] unlink("./114/binderfs" [pid 297] umount2("./112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 760] exit_group(0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./112/binderfs", [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 760] <... exit_group resumed>) = ? [pid 299] close(3 [pid 297] unlink("./112/binderfs" [pid 761] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] rmdir("./114") = 0 [pid 297] getdents64(3, [pid 760] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 299] mkdir("./115", 0777 [pid 761] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... mkdir resumed>) = 0 [pid 297] rmdir("./112" [pid 761] <... exit_group resumed>) = ? [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... rmdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 761] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] mkdir("./113", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... mkdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 762 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 762 attached [pid 762] set_robust_list(0x5555726b0660, 24) = 0 [pid 762] chdir("./115") = 0 ./strace-static-x86_64: Process 763 attached [pid 762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 763] set_robust_list(0x5555726b0660, 24 [pid 762] setpgid(0, 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 763 [pid 762] <... setpgid resumed>) = 0 [pid 763] <... set_robust_list resumed>) = 0 [pid 763] chdir("./113" [pid 762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [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] <... openat resumed>) = 3 [pid 763] <... openat resumed>) = 3 [pid 762] write(3, "1000", 4 [pid 763] write(3, "1000", 4 [pid 762] <... write resumed>) = 4 [pid 763] <... write resumed>) = 4 [pid 763] close(3 [pid 762] close(3 [pid 763] <... close resumed>) = 0 [pid 763] symlink("/dev/binderfs", "./binderfs") = 0 [pid 762] <... close resumed>) = 0 executing program [pid 763] write(1, "executing program\n", 18 [pid 762] symlink("/dev/binderfs", "./binderfs" [pid 763] <... write resumed>) = 18 [pid 763] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 762] <... symlink resumed>) = 0 executing program [pid 762] write(1, "executing program\n", 18 [pid 763] <... mkdirat resumed>) = 0 [pid 762] <... write resumed>) = 18 [pid 763] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 762] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 762] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 763] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 763] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 763] exit_group(0) = ? [pid 762] <... mount resumed>) = 0 [pid 763] +++ exited with 0 +++ [pid 762] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./116", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 762] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 762] exit_group(0 [pid 300] newfstatat(3, "", [pid 762] <... exit_group resumed>) = ? [pid 762] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./115", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./116/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./115", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 300] openat(AT_FDCWD, "./116/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(4, "", [pid 298] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./113", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 298] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./115/binderfs2", [pid 300] close(4 [pid 297] getdents64(3, [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] rmdir("./116/binderfs2" [pid 299] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./115/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./115/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./115/binderfs2") = 0 [pid 299] umount2("./115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./115/binderfs", [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./115/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./116/binderfs", [pid 299] unlink("./115/binderfs" [pid 298] <... openat resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(4, "", [pid 300] unlink("./116/binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./113/binderfs2", [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] getdents64(4, [pid 297] umount2("./113/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3 [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] rmdir("./115" [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./113/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] rmdir("./116" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] rmdir("./115/binderfs2" [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] mkdir("./116", 0777 [pid 297] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./113/binderfs2" [pid 298] umount2("./115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./117", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./115/binderfs", ./strace-static-x86_64: Process 764 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 764] set_robust_list(0x5555726b0660, 24 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 764 [pid 297] umount2("./113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 764] <... set_robust_list resumed>) = 0 [pid 298] unlink("./115/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./113/binderfs", [pid 764] chdir("./116" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] unlink("./113/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 764] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 765 attached [pid 297] <... close resumed>) = 0 [pid 765] set_robust_list(0x5555726b0660, 24 [pid 297] rmdir("./113" [pid 765] <... set_robust_list resumed>) = 0 [pid 764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 765 [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 765] chdir("./117" [pid 764] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 764] setpgid(0, 0 [pid 298] close(3 [pid 765] <... chdir resumed>) = 0 [pid 297] mkdir("./114", 0777 [pid 765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 764] <... setpgid resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 765] <... prctl resumed>) = 0 [pid 765] setpgid(0, 0 [pid 764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] rmdir("./115" [pid 765] <... setpgid resumed>) = 0 [pid 765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 764] <... openat resumed>) = 3 [pid 298] mkdir("./116", 0777 [pid 765] <... openat resumed>) = 3 [pid 765] write(3, "1000", 4) = 4 [pid 765] close(3) = 0 [pid 765] symlink("/dev/binderfs", "./binderfs"executing program ./strace-static-x86_64: Process 766 attached ) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 765] write(1, "executing program\n", 18 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 766 [pid 766] set_robust_list(0x5555726b0660, 24 [pid 765] <... write resumed>) = 18 [pid 764] write(3, "1000", 4 [pid 766] <... set_robust_list resumed>) = 0 [pid 765] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 764] <... write resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 764] close(3 [pid 766] chdir("./114" [pid 764] <... close resumed>) = 0 [pid 765] <... mkdirat resumed>) = 0 [pid 764] symlink("/dev/binderfs", "./binderfs" [pid 766] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 767 attached [pid 767] set_robust_list(0x5555726b0660, 24) = 0 [pid 767] chdir("./116" [pid 765] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 764] <... symlink resumed>) = 0 [pid 766] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 764] write(1, "executing program\n", 18 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 767 [pid 766] <... prctl resumed>) = 0 [pid 767] <... chdir resumed>) = 0 [pid 766] setpgid(0, 0 [pid 765] <... mount resumed>) = 0 [pid 764] <... write resumed>) = 18 [pid 767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 766] <... setpgid resumed>) = 0 [pid 767] <... prctl resumed>) = 0 [pid 767] setpgid(0, 0 [pid 766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 767] <... setpgid resumed>) = 0 [pid 767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 766] <... openat resumed>) = 3 [pid 767] <... openat resumed>) = 3 [pid 766] write(3, "1000", 4 [pid 765] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 764] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 767] write(3, "1000", 4) = 4 [pid 766] <... write resumed>) = 4 [pid 765] <... openat resumed>) = 3 [pid 767] close(3 [pid 766] close(3 [pid 767] <... close resumed>) = 0 [pid 765] exit_group(0 [pid 767] symlink("/dev/binderfs", "./binderfs") = 0 [pid 766] <... close resumed>) = 0 [pid 765] <... exit_group resumed>) = ? [pid 764] <... mkdirat resumed>) = 0 executing program [pid 766] symlink("/dev/binderfs", "./binderfs" [pid 764] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 766] <... symlink resumed>) = 0 [pid 767] write(1, "executing program\n", 18) = 18 [pid 765] +++ exited with 0 +++ [pid 767] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 764] <... mount resumed>) = 0 executing program [pid 766] write(1, "executing program\n", 18 [pid 767] <... mkdirat resumed>) = 0 [pid 766] <... write resumed>) = 18 [pid 764] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 767] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 766] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 764] <... openat resumed>) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 766] <... mkdirat resumed>) = 0 [pid 764] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 [pid 767] <... mount resumed>) = 0 [pid 300] umount2("./117", MNT_FORCE|UMOUNT_NOFOLLOW [pid 767] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 764] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 766] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 767] exit_group(0) = ? [pid 764] +++ exited with 0 +++ [pid 767] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 766] <... mount resumed>) = 0 [pid 766] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 766] <... openat resumed>) = 3 [pid 300] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 766] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 766] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./117/binderfs2", [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./116", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 766] +++ exited with 0 +++ [pid 300] openat(AT_FDCWD, "./117/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... openat resumed>) = 4 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./117/binderfs2" [pid 298] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./117/binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3) = 0 [pid 300] rmdir("./117" [pid 298] newfstatat(AT_FDCWD, "./116/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] mkdir("./118", 0777 [pid 298] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./116/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./116", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, ./strace-static-x86_64: Process 768 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 768 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 768] set_robust_list(0x5555726b0660, 24 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 768] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 768] chdir("./118" [pid 299] newfstatat(3, "", [pid 768] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(4 [pid 768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 768] <... prctl resumed>) = 0 [pid 299] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 768] setpgid(0, 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] rmdir("./116/binderfs2" [pid 297] <... restart_syscall resumed>) = 0 [pid 768] <... setpgid resumed>) = 0 [pid 299] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 768] write(3, "1000", 4 [pid 299] newfstatat(AT_FDCWD, "./116/binderfs2", [pid 768] <... write resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 768] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./116/binderfs", [pid 297] umount2("./114", MNT_FORCE|UMOUNT_NOFOLLOW [pid 768] <... close resumed>) = 0 [pid 299] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 768] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./116/binderfs" [pid 768] <... symlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./116/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(3, "", [pid 299] newfstatat(4, "", executing program [pid 768] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 768] <... write resumed>) = 18 [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 768] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, [pid 298] close(3 [pid 768] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] close(4 [pid 298] rmdir("./116" [pid 297] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] mkdir("./117", 0777 [pid 297] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 768] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] rmdir("./116/binderfs2") = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 768] <... mount resumed>) = 0 [pid 299] umount2("./116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./114/binderfs2", [pid 768] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 768] exit_group(0) = ? [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./116/binderfs", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./114/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 768] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] unlink("./116/binderfs" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] openat(AT_FDCWD, "./114/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 769 attached [pid 299] <... unlink resumed>) = 0 [pid 297] newfstatat(4, "", [pid 769] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 769 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 769] <... set_robust_list resumed>) = 0 [pid 299] getdents64(3, [pid 297] getdents64(4, [pid 769] chdir("./117" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(3) = 0 [pid 769] <... chdir resumed>) = 0 [pid 299] rmdir("./116" [pid 297] getdents64(4, [pid 769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 769] setpgid(0, 0 [pid 299] <... rmdir resumed>) = 0 [pid 769] <... setpgid resumed>) = 0 [pid 297] close(4 [pid 299] mkdir("./117", 0777 [pid 769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] rmdir("./114/binderfs2" [pid 769] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 769] write(3, "1000", 4./strace-static-x86_64: Process 770 attached ) = 4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 770 [pid 297] umount2("./114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 769] close(3 [pid 770] set_robust_list(0x5555726b0660, 24 [pid 769] <... close resumed>) = 0 [pid 769] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 770] <... set_robust_list resumed>) = 0 [pid 770] chdir("./117" [pid 769] <... symlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./114/binderfs", [pid 770] <... chdir resumed>) = 0 [pid 770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 770] setpgid(0, 0) = 0 [pid 769] write(1, "executing program\n", 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 769] <... write resumed>) = 18 [pid 297] unlink("./114/binderfs" [pid 770] write(3, "1000", 4 [pid 769] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... unlink resumed>) = 0 [pid 770] <... write resumed>) = 4 [pid 297] getdents64(3, [pid 770] close(3) = 0 [pid 770] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 769] <... mkdirat resumed>) = 0 [pid 297] close(3 [pid 769] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... close resumed>) = 0 executing program [pid 770] write(1, "executing program\n", 18) = 18 [pid 770] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 769] <... mount resumed>) = 0 [pid 297] rmdir("./114" [pid 770] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 769] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 770] <... mount resumed>) = 0 [pid 769] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 770] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] mkdir("./115", 0777 [pid 770] <... openat resumed>) = 3 [pid 769] <... exit_group resumed>) = ? [pid 770] exit_group(0 [pid 769] +++ exited with 0 +++ [pid 297] <... mkdir resumed>) = 0 [pid 770] <... exit_group resumed>) = ? [pid 300] umount2("./118", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 770] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 771 attached [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 771] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... restart_syscall resumed>) = 0 [pid 771] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 771 [pid 771] chdir("./115" [pid 299] <... restart_syscall resumed>) = 0 [pid 298] umount2("./117", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 771] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./118/binderfs2", [pid 771] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./117", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 771] <... prctl resumed>) = 0 [pid 300] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 771] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 771] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./118/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] newfstatat(3, "", [pid 298] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 771] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(4 [pid 771] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 771] <... write resumed>) = 4 [pid 300] rmdir("./118/binderfs2" [pid 299] getdents64(3, [pid 771] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 771] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./118/binderfs", [pid 771] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./118/binderfs" [pid 771] <... symlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./118") = 0 [pid 300] mkdir("./119", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = 0 executing program [pid 771] write(1, "executing program\n", 18 [pid 298] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 771] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 771] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./117/binderfs2", [pid 299] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 772 attached [pid 772] set_robust_list(0x5555726b0660, 24) = 0 [pid 772] chdir("./119" [pid 771] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 772 [pid 299] newfstatat(AT_FDCWD, "./117/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 772] <... chdir resumed>) = 0 [pid 772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 772] setpgid(0, 0) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./117/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 771] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./117/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 772] write(3, "1000", 4) = 4 [pid 772] close(3) = 0 [pid 772] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 771] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 772] write(1, "executing program\n", 18) = 18 [pid 772] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(4, "", [pid 298] getdents64(4, [pid 771] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] getdents64(4, [pid 298] close(4 [pid 772] <... mkdirat resumed>) = 0 [pid 771] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 772] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(4, [pid 298] rmdir("./117/binderfs2" [pid 772] <... mount resumed>) = 0 [pid 771] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 772] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 771] <... exit_group resumed>) = ? [pid 299] close(4 [pid 772] exit_group(0) = ? [pid 771] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 298] umount2("./117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] rmdir("./117/binderfs2" [pid 297] umount2("./115", MNT_FORCE|UMOUNT_NOFOLLOW [pid 772] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./117/binderfs") = 0 [pid 298] getdents64(3, [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 299] newfstatat(AT_FDCWD, "./117/binderfs", [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./117" [pid 299] unlink("./117/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 298] mkdir("./118", 0777 [pid 299] <... unlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 297] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./117" [pid 297] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 773 attached [pid 773] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./119", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 773 [pid 773] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 773] chdir("./118" [pid 300] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] mkdir("./118", 0777 [pid 297] newfstatat(AT_FDCWD, "./115/binderfs2", [pid 773] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(3, "", [pid 773] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 773] setpgid(0, 0 [pid 300] getdents64(3, [pid 299] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 773] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./115/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 773] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 774 attached [pid 773] write(3, "1000", 4) = 4 [pid 773] close(3) = 0 [pid 773] symlink("/dev/binderfs", "./binderfs" [pid 297] openat(AT_FDCWD, "./115/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 774] set_robust_list(0x5555726b0660, 24 [pid 297] <... openat resumed>) = 4 [pid 774] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 774 [pid 297] newfstatat(4, "", [pid 773] <... symlink resumed>) = 0 [pid 300] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 774] chdir("./118" [pid 773] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 773] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./119/binderfs2", [pid 774] <... chdir resumed>) = 0 [pid 773] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 773] <... mkdirat resumed>) = 0 [pid 300] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 774] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 774] setpgid(0, 0 [pid 297] getdents64(4, [pid 774] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./119/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(4 [pid 300] <... openat resumed>) = 4 [pid 773] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(4, "", [pid 774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 773] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] rmdir("./115/binderfs2" [pid 774] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./119/binderfs2" [pid 774] write(3, "1000", 4 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 774] <... write resumed>) = 4 [pid 773] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 774] close(3 [pid 773] <... openat resumed>) = 3 [pid 297] umount2("./115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 774] <... close resumed>) = 0 [pid 773] exit_group(0 [pid 300] umount2("./119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 774] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 773] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 774] <... symlink resumed>) = 0 [pid 773] +++ exited with 0 +++ [pid 297] newfstatat(AT_FDCWD, "./115/binderfs", [pid 300] newfstatat(AT_FDCWD, "./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 774] write(1, "executing program\n", 18 [pid 297] unlink("./115/binderfs" [pid 774] <... write resumed>) = 18 [pid 300] unlink("./119/binderfs" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=773, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... unlink resumed>) = 0 [pid 774] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] rmdir("./119") = 0 [pid 298] umount2("./118", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 774] <... mkdirat resumed>) = 0 [pid 298] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 300] mkdir("./120", 0777 [pid 774] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] rmdir("./115" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 775 attached [pid 298] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 774] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] mkdir("./116", 0777 [pid 775] set_robust_list(0x5555726b0660, 24) = 0 [pid 775] chdir("./120" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 775 [pid 775] <... chdir resumed>) = 0 [pid 298] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 775] <... prctl resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./118/binderfs2", [pid 775] setpgid(0, 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 775] <... setpgid resumed>) = 0 [pid 298] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 774] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 775] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./118/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... openat resumed>) = 4 [pid 775] write(3, "1000", 4 [pid 298] newfstatat(4, "", [pid 775] <... write resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 775] close(3 [pid 298] getdents64(4, [pid 775] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 775] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 776 attached [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 775] <... symlink resumed>) = 0 [pid 298] close(4executing program [pid 775] write(1, "executing program\n", 18 [pid 774] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 775] <... write resumed>) = 18 [pid 298] rmdir("./118/binderfs2" [pid 776] set_robust_list(0x5555726b0660, 24 [pid 775] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 776] <... set_robust_list resumed>) = 0 [pid 774] exit_group(0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 776 [pid 776] chdir("./116" [pid 775] <... mkdirat resumed>) = 0 [pid 774] <... exit_group resumed>) = ? [pid 298] umount2("./118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 775] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] unlink("./118/binderfs" [pid 776] <... chdir resumed>) = 0 [pid 775] <... mount resumed>) = 0 [pid 774] +++ exited with 0 +++ [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 776] <... prctl resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 776] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 776] <... setpgid resumed>) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./118" [pid 776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 775] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 776] <... openat resumed>) = 3 [pid 775] <... openat resumed>) = 3 [pid 776] write(3, "1000", 4) = 4 [pid 775] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 776] close(3 [pid 775] <... exit_group resumed>) = ? [pid 776] <... close resumed>) = 0 [pid 776] symlink("/dev/binderfs", "./binderfs" [pid 775] +++ exited with 0 +++ [pid 298] mkdir("./119", 0777 [pid 776] <... symlink resumed>) = 0 [pid 776] write(1, "executing program\n", 18 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=775, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... mkdir resumed>) = 0 executing program [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 776] <... write resumed>) = 18 [pid 776] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 777 attached [pid 777] set_robust_list(0x5555726b0660, 24 [pid 300] <... restart_syscall resumed>) = 0 [pid 777] <... set_robust_list resumed>) = 0 [pid 777] chdir("./119" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 777 [pid 777] <... chdir resumed>) = 0 [pid 777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 776] <... mkdirat resumed>) = 0 [pid 777] <... prctl resumed>) = 0 [pid 777] setpgid(0, 0) = 0 [pid 300] umount2("./120", MNT_FORCE|UMOUNT_NOFOLLOW [pid 776] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 777] write(3, "1000", 4) = 4 [pid 777] close(3) = 0 [pid 777] symlink("/dev/binderfs", "./binderfs" [pid 776] <... mount resumed>) = 0 executing program [pid 300] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 777] <... symlink resumed>) = 0 [pid 777] write(1, "executing program\n", 18) = 18 [pid 777] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 776] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 777] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 299] umount2("./118", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 777] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 776] <... openat resumed>) = 3 [pid 777] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 777] exit_group(0 [pid 299] newfstatat(3, "", [pid 776] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 777] <... exit_group resumed>) = ? [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 776] <... exit_group resumed>) = ? [pid 299] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./120/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./120/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 776] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./120/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 777] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=777, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./118/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./120/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./120/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./118/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(3 [pid 299] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./120" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./118/binderfs2" [pid 300] mkdir("./121", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] umount2("./118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] unlink("./118/binderfs" [pid 298] umount2("./119", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 778 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./118"./strace-static-x86_64: Process 778 attached [pid 298] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 778] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] mkdir("./119", 0777 [pid 778] chdir("./121" [pid 298] newfstatat(3, "", [pid 778] <... chdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(3, [pid 778] <... prctl resumed>) = 0 [pid 778] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 778] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 779 attached [pid 298] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 779 [pid 779] set_robust_list(0x5555726b0660, 24) = 0 [pid 778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = 0 [pid 779] chdir("./119") = 0 [pid 779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 779] setpgid(0, 0) = 0 [pid 779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... restart_syscall resumed>) = 0 [pid 778] <... openat resumed>) = 3 [pid 298] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 779] write(3, "1000", 4 [pid 778] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./116", MNT_FORCE|UMOUNT_NOFOLLOW [pid 779] <... write resumed>) = 4 [pid 778] <... write resumed>) = 4 [pid 298] newfstatat(AT_FDCWD, "./119/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 779] close(3 [pid 297] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 779] <... close resumed>) = 0 [pid 778] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 [pid 779] symlink("/dev/binderfs", "./binderfs" [pid 778] <... close resumed>) = 0 [pid 298] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 779] <... symlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 778] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 779] write(1, "executing program\n", 18 [pid 297] getdents64(3, [pid 779] <... write resumed>) = 18 [pid 778] <... symlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./119/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 779] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... openat resumed>) = 4 [pid 779] <... mkdirat resumed>) = 0 [pid 778] write(1, "executing program\n", 18 executing program [pid 298] newfstatat(4, "", [pid 297] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 778] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 778] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 779] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 778] <... mkdirat resumed>) = 0 [pid 779] <... mount resumed>) = 0 [pid 778] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./119/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./116/binderfs2", [pid 779] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 779] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./116/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./116/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 779] exit_group(0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 779] <... exit_group resumed>) = ? [pid 779] +++ exited with 0 +++ [pid 778] <... mount resumed>) = 0 [pid 298] umount2("./119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(AT_FDCWD, "./119/binderfs", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 298] unlink("./119/binderfs" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 778] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] close(4) = 0 [pid 297] rmdir("./116/binderfs2" [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./116/binderfs", [pid 778] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 778] exit_group(0 [pid 297] unlink("./116/binderfs") = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, [pid 298] getdents64(3, [pid 778] <... exit_group resumed>) = ? [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./116") = 0 [pid 297] mkdir("./117", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 778] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./119", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... close resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./119" [pid 299] <... openat resumed>) = 3 ./strace-static-x86_64: Process 780 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 780 [pid 780] set_robust_list(0x5555726b0660, 24 [pid 298] <... rmdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 780] <... set_robust_list resumed>) = 0 [pid 780] chdir("./117" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] mkdir("./120", 0777 [pid 780] <... chdir resumed>) = 0 [pid 780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(3, [pid 780] <... prctl resumed>) = 0 [pid 780] setpgid(0, 0) = 0 [pid 780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 780] <... openat resumed>) = 3 [pid 780] write(3, "1000", 4) = 4 [pid 780] close(3) = 0 [pid 780] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 780] <... symlink resumed>) = 0 [pid 780] write(1, "executing program\n", 18) = 18 [pid 780] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 781 attached ) = 0 [pid 780] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 781] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 781] <... set_robust_list resumed>) = 0 [pid 781] chdir("./120" [pid 780] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 781 [pid 780] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(AT_FDCWD, "./119/binderfs2", [pid 781] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 780] <... openat resumed>) = 3 [pid 781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 781] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 781] setpgid(0, 0 [pid 780] exit_group(0 [pid 299] openat(AT_FDCWD, "./119/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 781] <... setpgid resumed>) = 0 [pid 780] <... exit_group resumed>) = ? [pid 781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 780] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 781] <... openat resumed>) = 3 [pid 781] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 781] <... write resumed>) = 4 [pid 781] close(3 [pid 299] getdents64(4, [pid 781] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 781] symlink("/dev/binderfs", "./binderfs" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./119/binderfs2" [pid 781] <... symlink resumed>) = 0 [pid 781] write(1, "executing program\n", 18) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 781] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] umount2("./119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./121", MNT_FORCE|UMOUNT_NOFOLLOW [pid 781] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./119/binderfs", [pid 781] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(3, "", [pid 299] unlink("./119/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 781] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 781] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 781] <... exit_group resumed>) = ? [pid 299] close(3 [pid 300] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./119" [pid 781] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./117", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./120", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./121/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(3, "", [pid 300] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./121/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(3, [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./120", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 782 attached [pid 300] close(4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 782 [pid 782] set_robust_list(0x5555726b0660, 24 [pid 300] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 782] <... set_robust_list resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] rmdir("./121/binderfs2" [pid 298] <... openat resumed>) = 3 [pid 782] chdir("./120") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 782] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 782] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./121/binderfs", [pid 297] newfstatat(AT_FDCWD, "./117/binderfs2", [pid 782] <... setpgid resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] unlink("./121/binderfs" [pid 298] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./117/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 782] <... openat resumed>) = 3 [pid 782] write(3, "1000", 4) = 4 executing program [pid 782] close(3) = 0 [pid 782] symlink("/dev/binderfs", "./binderfs") = 0 [pid 782] write(1, "executing program\n", 18 [pid 300] <... unlink resumed>) = 0 [pid 782] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 782] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 300] getdents64(3, [pid 297] openat(AT_FDCWD, "./117/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 782] <... mkdirat resumed>) = 0 [pid 782] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 300] close(3 [pid 298] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 782] <... mount resumed>) = 0 [pid 300] rmdir("./121" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 782] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./120/binderfs2", [pid 297] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 782] <... openat resumed>) = 3 [pid 782] exit_group(0) = ? [pid 300] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 782] +++ exited with 0 +++ [pid 300] mkdir("./122", 0777 [pid 298] openat(AT_FDCWD, "./120/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./117/binderfs2" [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./117/binderfs", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./117/binderfs"./strace-static-x86_64: Process 783 attached ) = 0 [pid 783] set_robust_list(0x5555726b0660, 24 [pid 298] getdents64(4, [pid 297] getdents64(3, [pid 783] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 783 [pid 299] umount2("./120", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 299] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 783] chdir("./122" [pid 299] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./117" [pid 298] rmdir("./120/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 783] <... chdir resumed>) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 783] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(3, [pid 783] <... prctl resumed>) = 0 [pid 297] mkdir("./118", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 783] setpgid(0, 0) = 0 [pid 299] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 784 attached [pid 783] <... openat resumed>) = 3 [pid 784] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 784 [pid 784] <... set_robust_list resumed>) = 0 [pid 784] chdir("./118" [pid 783] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 783] <... write resumed>) = 4 [pid 299] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./120/binderfs", [pid 783] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 784] <... chdir resumed>) = 0 [pid 783] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./120/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] unlink("./120/binderfs" [pid 784] setpgid(0, 0 [pid 783] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 784] <... setpgid resumed>) = 0 [pid 784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 783] <... symlink resumed>) = 0 [pid 299] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 784] write(3, "1000", 4) = 4 [pid 784] close(3) = 0 [pid 784] symlink("/dev/binderfs", "./binderfs"executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 783] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./120/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 783] <... write resumed>) = 18 [pid 299] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 784] <... symlink resumed>) = 0 executing program [pid 783] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(4, "", [pid 298] close(3 [pid 784] write(1, "executing program\n", 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 784] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 784] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, [pid 784] <... mkdirat resumed>) = 0 [pid 298] rmdir("./120" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 784] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 784] <... mount resumed>) = 0 [pid 783] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./121", 0777 [pid 784] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] close(4) = 0 [pid 299] rmdir("./120/binderfs2") = 0 [pid 784] exit_group(0 [pid 298] <... mkdir resumed>) = 0 [pid 784] <... exit_group resumed>) = ? [pid 783] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 784] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(AT_FDCWD, "./120/binderfs", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=784, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 783] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] unlink("./120/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3./strace-static-x86_64: Process 785 attached [pid 785] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... close resumed>) = 0 [pid 785] chdir("./121" [pid 783] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 785 [pid 785] <... chdir resumed>) = 0 [pid 299] rmdir("./120" [pid 785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 783] <... openat resumed>) = 3 [pid 785] <... prctl resumed>) = 0 [pid 783] exit_group(0 [pid 299] <... rmdir resumed>) = 0 [pid 785] setpgid(0, 0) = 0 [pid 299] mkdir("./121", 0777 [pid 785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 783] <... exit_group resumed>) = ? [pid 299] <... mkdir resumed>) = 0 [pid 785] <... openat resumed>) = 3 [pid 785] write(3, "1000", 4) = 4 [pid 785] close(3) = 0 [pid 785] symlink("/dev/binderfs", "./binderfs" [pid 783] +++ exited with 0 +++ [pid 785] <... symlink resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=783, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 785] write(1, "executing program\n", 18executing program ) = 18 ./strace-static-x86_64: Process 786 attached [pid 785] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 786] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 786 [pid 786] <... set_robust_list resumed>) = 0 [pid 786] chdir("./121") = 0 [pid 786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 786] setpgid(0, 0) = 0 [pid 786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 786] write(3, "1000", 4) = 4 [pid 786] close(3) = 0 [pid 786] symlink("/dev/binderfs", "./binderfs" [pid 785] <... mkdirat resumed>) = 0 [pid 786] <... symlink resumed>) = 0 [pid 785] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 786] write(1, "executing program\n", 18) = 18 [pid 786] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 786] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 785] <... mount resumed>) = 0 [pid 785] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 786] <... mount resumed>) = 0 [pid 785] <... openat resumed>) = 3 [pid 786] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 786] exit_group(0) = ? [pid 785] exit_group(0) = ? [pid 786] +++ exited with 0 +++ [pid 785] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./118", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 300] umount2("./122", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./118/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./121", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./118/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./118/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./122/binderfs2", [pid 297] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 298] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./122/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(AT_FDCWD, "./121/binderfs2", [pid 297] rmdir("./118/binderfs2" [pid 300] newfstatat(4, "", [pid 299] umount2("./121", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./121/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(4, "", [pid 300] rmdir("./122/binderfs2" [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./118/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] unlink("./118/binderfs" [pid 300] umount2("./122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./122/binderfs", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 297] getdents64(3, [pid 298] rmdir("./121/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 300] unlink("./122/binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./121/binderfs2", [pid 297] rmdir("./118" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 298] newfstatat(AT_FDCWD, "./121/binderfs", [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./122" [pid 299] openat(AT_FDCWD, "./121/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./119", 0777 [pid 298] unlink("./121/binderfs" [pid 300] mkdir("./123", 0777 [pid 298] <... unlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... mkdir resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./121") = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, ./strace-static-x86_64: Process 787 attached ./strace-static-x86_64: Process 788 attached [pid 787] set_robust_list(0x5555726b0660, 24 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] mkdir("./122", 0777 [pid 299] getdents64(4, [pid 788] set_robust_list(0x5555726b0660, 24 [pid 787] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 787 [pid 298] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 788] <... set_robust_list resumed>) = 0 [pid 787] chdir("./123" [pid 299] <... close resumed>) = 0 [pid 788] chdir("./119" [pid 299] rmdir("./121/binderfs2" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 788 [pid 788] <... chdir resumed>) = 0 [pid 787] <... chdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./121/binderfs"./strace-static-x86_64: Process 789 attached [pid 788] <... prctl resumed>) = 0 [pid 787] <... prctl resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 789 [pid 788] setpgid(0, 0 [pid 787] setpgid(0, 0 [pid 789] set_robust_list(0x5555726b0660, 24 [pid 788] <... setpgid resumed>) = 0 [pid 787] <... setpgid resumed>) = 0 [pid 789] <... set_robust_list resumed>) = 0 [pid 299] getdents64(3, [pid 788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(3 [pid 789] chdir("./122" [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./121" [pid 789] <... chdir resumed>) = 0 [pid 788] <... openat resumed>) = 3 [pid 787] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 788] write(3, "1000", 4 [pid 299] mkdir("./122", 0777 [pid 789] <... prctl resumed>) = 0 [pid 788] <... write resumed>) = 4 [pid 787] write(3, "1000", 4 [pid 789] setpgid(0, 0 [pid 788] close(3 [pid 787] <... write resumed>) = 4 [pid 788] <... close resumed>) = 0 [pid 787] close(3 [pid 789] <... setpgid resumed>) = 0 [pid 788] symlink("/dev/binderfs", "./binderfs" [pid 787] <... close resumed>) = 0 [pid 787] symlink("/dev/binderfs", "./binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 788] <... symlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 787] <... symlink resumed>) = 0 executing program [pid 788] write(1, "executing program\n", 18 [pid 789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 787] write(1, "executing program\n", 18 [pid 788] <... write resumed>) = 18 [pid 788] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 790 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 790 [pid 790] set_robust_list(0x5555726b0660, 24) = 0 executing program [pid 787] <... write resumed>) = 18 [pid 790] chdir("./122") = 0 [pid 790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 790] setpgid(0, 0) = 0 [pid 788] <... mkdirat resumed>) = 0 [pid 787] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 789] <... openat resumed>) = 3 [pid 790] <... openat resumed>) = 3 [pid 790] write(3, "1000", 4) = 4 [pid 790] close(3) = 0 [pid 789] write(3, "1000", 4 [pid 787] <... mkdirat resumed>) = 0 [pid 789] <... write resumed>) = 4 [pid 788] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 789] close(3 [pid 787] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 789] <... close resumed>) = 0 executing program [pid 790] symlink("/dev/binderfs", "./binderfs" [pid 789] symlink("/dev/binderfs", "./binderfs" [pid 790] <... symlink resumed>) = 0 [pid 790] write(1, "executing program\n", 18) = 18 [pid 790] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 790] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 788] <... mount resumed>) = 0 [pid 789] <... symlink resumed>) = 0 [pid 790] <... mount resumed>) = 0 [pid 790] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 790] exit_group(0) = ? [pid 787] <... mount resumed>) = 0 [pid 789] write(1, "executing program\n", 18executing program [pid 790] +++ exited with 0 +++ [pid 789] <... write resumed>) = 18 [pid 787] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 789] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 787] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 788] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 789] <... mkdirat resumed>) = 0 [pid 788] <... openat resumed>) = 3 [pid 787] exit_group(0) = ? [pid 788] exit_group(0) = ? [pid 788] +++ exited with 0 +++ [pid 787] +++ exited with 0 +++ [pid 789] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=787, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./119", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 789] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./119/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./119/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./119/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 789] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] getdents64(4, [pid 299] umount2("./122", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 789] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 299] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 789] exit_group(0) = ? [pid 299] <... openat resumed>) = 3 [pid 297] rmdir("./119/binderfs2" [pid 299] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 789] +++ exited with 0 +++ [pid 297] umount2("./119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=789, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./119/binderfs") = 0 [pid 299] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./122/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./122/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] close(3 [pid 299] newfstatat(4, "", [pid 297] <... close resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] rmdir("./119" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... rmdir resumed>) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./123", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4) = 0 [pid 299] rmdir("./122/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] mkdir("./120", 0777 [pid 300] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./122", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(AT_FDCWD, "./122/binderfs", [pid 298] newfstatat(3, "", ./strace-static-x86_64: Process 791 attached [pid 300] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./122/binderfs" [pid 298] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 791] set_robust_list(0x5555726b0660, 24 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 791] <... set_robust_list resumed>) = 0 [pid 298] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 791] chdir("./120" [pid 300] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 791 [pid 299] close(3) = 0 [pid 299] rmdir("./122" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 791] <... chdir resumed>) = 0 [pid 791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./123/binderfs2", [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 791] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 791] setpgid(0, 0 [pid 300] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./123", 0777 [pid 298] newfstatat(AT_FDCWD, "./122/binderfs2", [pid 791] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./123/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./122/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 791] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 792 attached [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 792 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./122/binderfs2" [pid 792] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 791] write(3, "1000", 4 [pid 792] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 791] <... write resumed>) = 4 [pid 792] chdir("./123" [pid 791] close(3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 792] <... chdir resumed>) = 0 [pid 791] <... close resumed>) = 0 [pid 300] close(4 [pid 298] umount2("./122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 791] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 792] <... prctl resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 792] setpgid(0, 0 [pid 298] newfstatat(AT_FDCWD, "./122/binderfs", [pid 300] rmdir("./123/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./122/binderfs") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 792] <... setpgid resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 791] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./122" [pid 792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 792] <... openat resumed>) = 3 [pid 791] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./123", 0777executing program [pid 792] write(3, "1000", 4 [pid 791] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./123/binderfs", [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 791] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 792] <... write resumed>) = 4 [pid 300] unlink("./123/binderfs" [pid 792] close(3 [pid 300] <... unlink resumed>) = 0 [pid 792] <... close resumed>) = 0 [pid 792] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 793 attached [pid 793] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 793 executing program [pid 793] chdir("./123" [pid 792] write(1, "executing program\n", 18 [pid 791] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, [pid 792] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 793] <... chdir resumed>) = 0 [pid 300] close(3 [pid 793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... close resumed>) = 0 [pid 793] setpgid(0, 0) = 0 executing program [pid 793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 792] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 791] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 793] <... openat resumed>) = 3 [pid 300] rmdir("./123" [pid 793] write(3, "1000", 4) = 4 [pid 793] close(3) = 0 [pid 793] symlink("/dev/binderfs", "./binderfs") = 0 [pid 791] <... mount resumed>) = 0 [pid 793] write(1, "executing program\n", 18) = 18 [pid 793] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 792] <... mkdirat resumed>) = 0 [pid 793] <... mkdirat resumed>) = 0 [pid 793] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 792] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 791] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] mkdir("./124", 0777 [pid 793] <... mount resumed>) = 0 [pid 793] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 792] <... mount resumed>) = 0 [pid 793] <... openat resumed>) = 3 [pid 793] exit_group(0) = ? [pid 300] <... mkdir resumed>) = 0 [pid 791] <... openat resumed>) = 3 [pid 791] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 793] +++ exited with 0 +++ ./strace-static-x86_64: Process 794 attached [pid 792] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 791] <... exit_group resumed>) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 794 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=793, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 794] set_robust_list(0x5555726b0660, 24 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 794] <... set_robust_list resumed>) = 0 [pid 794] chdir("./124") = 0 [pid 794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 794] setpgid(0, 0 [pid 791] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 794] <... setpgid resumed>) = 0 [pid 792] <... openat resumed>) = 3 [pid 794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 792] exit_group(0 [pid 794] write(3, "1000", 4) = 4 [pid 794] close(3) = 0 [pid 794] symlink("/dev/binderfs", "./binderfs" [pid 792] <... exit_group resumed>) = ? executing program [pid 794] <... symlink resumed>) = 0 [pid 794] write(1, "executing program\n", 18) = 18 [pid 794] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 792] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 794] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 794] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 794] exit_group(0) = ? [pid 794] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./123", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 298] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./123/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./120", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./123/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 297] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 297] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] rmdir("./123/binderfs2") = 0 [pid 298] umount2("./123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./123/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./123/binderfs" [pid 297] newfstatat(AT_FDCWD, "./120/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./120/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] openat(AT_FDCWD, "./120/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] close(3 [pid 297] newfstatat(4, "", [pid 299] umount2("./123", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./123" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(3, "", [pid 300] umount2("./124", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] mkdir("./124", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... mkdir resumed>) = 0 [pid 297] close(4 [pid 300] <... openat resumed>) = 3 [pid 299] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] rmdir("./120/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 795 attached [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./123/binderfs2", [pid 795] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 795 [pid 297] umount2("./120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 795] <... set_robust_list resumed>) = 0 [pid 299] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 795] chdir("./124") = 0 [pid 299] openat(AT_FDCWD, "./123/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./120/binderfs", [pid 795] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./124/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./120/binderfs" [pid 795] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 297] <... unlink resumed>) = 0 [pid 795] <... setpgid resumed>) = 0 [pid 300] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./124/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 297] getdents64(3, [pid 795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 795] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 297] close(3 [pid 795] write(3, "1000", 4 [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 795] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./123/binderfs2" [pid 297] rmdir("./120" [pid 795] close(3 [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 795] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 795] symlink("/dev/binderfs", "./binderfs" [pid 300] close(4) = 0 [pid 297] mkdir("./121", 0777 [pid 300] rmdir("./124/binderfs2" [pid 795] <... symlink resumed>) = 0 [pid 795] write(1, "executing program\n", 18executing program ) = 18 [pid 299] umount2("./123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 795] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 300] umount2("./124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./123/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 795] <... mkdirat resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./124/binderfs", [pid 299] unlink("./123/binderfs"./strace-static-x86_64: Process 796 attached [pid 795] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 796] set_robust_list(0x5555726b0660, 24 [pid 300] unlink("./124/binderfs" [pid 299] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 796 [pid 299] close(3 [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 795] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./123" [pid 796] <... set_robust_list resumed>) = 0 [pid 795] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 796] chdir("./121" [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./124" [pid 796] <... chdir resumed>) = 0 [pid 796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 795] <... openat resumed>) = 3 [pid 796] <... prctl resumed>) = 0 [pid 796] setpgid(0, 0) = 0 [pid 299] mkdir("./124", 0777 [pid 796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 795] exit_group(0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] mkdir("./125", 0777 [pid 796] <... openat resumed>) = 3 [pid 795] <... exit_group resumed>) = ? [pid 300] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 795] +++ exited with 0 +++ [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 796] write(3, "1000", 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=795, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 797 attached [pid 796] <... write resumed>) = 4 [pid 797] set_robust_list(0x5555726b0660, 24 [pid 796] close(3./strace-static-x86_64: Process 798 attached ) = 0 [pid 798] set_robust_list(0x5555726b0660, 24 [pid 797] <... set_robust_list resumed>) = 0 [pid 796] symlink("/dev/binderfs", "./binderfs" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 798 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 797 [pid 298] <... restart_syscall resumed>) = 0 [pid 797] chdir("./125" [pid 298] umount2("./124", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 798] <... set_robust_list resumed>) = 0 [pid 797] <... chdir resumed>) = 0 [pid 796] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", executing program [pid 798] chdir("./124" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 797] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 798] <... chdir resumed>) = 0 [pid 796] write(1, "executing program\n", 18 [pid 797] <... prctl resumed>) = 0 [pid 298] getdents64(3, [pid 798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 797] setpgid(0, 0 [pid 796] <... write resumed>) = 18 [pid 798] <... prctl resumed>) = 0 [pid 797] <... setpgid resumed>) = 0 [pid 798] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 798] <... setpgid resumed>) = 0 [pid 797] <... openat resumed>) = 3 [pid 796] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 797] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./124/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 797] <... write resumed>) = 4 [pid 796] <... mkdirat resumed>) = 0 [pid 797] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 798] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./124/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 797] <... close resumed>) = 0 [pid 798] write(3, "1000", 4 [pid 298] rmdir("./124/binderfs2" [pid 798] <... write resumed>) = 4 [pid 797] symlink("/dev/binderfs", "./binderfs" [pid 796] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 798] close(3) = 0 [pid 798] symlink("/dev/binderfs", "./binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 798] <... symlink resumed>) = 0 [pid 797] <... symlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./124/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 796] <... mount resumed>) = 0 executing program [pid 298] <... close resumed>) = 0 [pid 798] write(1, "executing program\n", 18 [pid 797] write(1, "executing program\n", 18 [pid 298] rmdir("./124"executing program [pid 798] <... write resumed>) = 18 [pid 797] <... write resumed>) = 18 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./125", 0777 [pid 797] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 798] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 797] <... mkdirat resumed>) = 0 [pid 798] <... mkdirat resumed>) = 0 [pid 796] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 798] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 797] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 799 attached [pid 796] <... openat resumed>) = 3 [pid 799] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 799 [pid 799] <... set_robust_list resumed>) = 0 [pid 799] chdir("./125") = 0 [pid 799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 799] setpgid(0, 0) = 0 [pid 799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 799] write(3, "1000", 4 [pid 797] <... mount resumed>) = 0 [pid 799] <... write resumed>) = 4 [pid 799] close(3) = 0 [pid 799] symlink("/dev/binderfs", "./binderfs") = 0 [pid 799] write(1, "executing program\n", 18executing program [pid 798] <... mount resumed>) = 0 [pid 799] <... write resumed>) = 18 [pid 799] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 796] exit_group(0 [pid 799] <... mkdirat resumed>) = 0 [pid 798] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 797] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 796] <... exit_group resumed>) = ? [pid 799] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 798] <... openat resumed>) = 3 [pid 799] <... mount resumed>) = 0 [pid 796] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=796, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 799] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 799] exit_group(0) = ? [pid 797] <... openat resumed>) = 3 [pid 798] exit_group(0 [pid 797] exit_group(0 [pid 798] <... exit_group resumed>) = ? [pid 797] <... exit_group resumed>) = ? [pid 799] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=799, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 798] +++ exited with 0 +++ [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=798, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 797] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=797, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./121", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 298] umount2("./125", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", [pid 297] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 297] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./121/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./121/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./125/binderfs2", [pid 297] openat(AT_FDCWD, "./121/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./125/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 298] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] getdents64(4, [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./124", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] close(4 [pid 300] umount2("./125", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./121/binderfs2" [pid 300] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 298] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./125/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./121/binderfs", [pid 300] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(AT_FDCWD, "./125/binderfs", [pid 299] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./121/binderfs" [pid 299] newfstatat(AT_FDCWD, "./124/binderfs2", [pid 298] unlink("./125/binderfs") = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./125/binderfs2", [pid 299] openat(AT_FDCWD, "./124/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... close resumed>) = 0 [pid 300] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 298] rmdir("./125" [pid 297] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 300] openat(AT_FDCWD, "./125/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./121") = 0 [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] mkdir("./126", 0777 [pid 300] newfstatat(4, "", [pid 297] mkdir("./122", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(4) = 0 [pid 299] rmdir("./124/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 299] umount2("./124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] close(4 [pid 299] newfstatat(AT_FDCWD, "./124/binderfs", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./125/binderfs2" [pid 299] unlink("./124/binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 800 attached [pid 800] set_robust_list(0x5555726b0660, 24) = 0 [pid 800] chdir("./126"./strace-static-x86_64: Process 801 attached ) = 0 [pid 801] set_robust_list(0x5555726b0660, 24) = 0 [pid 800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 801] chdir("./122" [pid 800] <... prctl resumed>) = 0 [pid 300] umount2("./125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 800 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 801 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./125/binderfs", [pid 299] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./125/binderfs" [pid 801] <... chdir resumed>) = 0 [pid 800] setpgid(0, 0 [pid 801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 800] <... setpgid resumed>) = 0 [pid 801] <... prctl resumed>) = 0 [pid 800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... unlink resumed>) = 0 [pid 801] setpgid(0, 0 [pid 800] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 801] <... setpgid resumed>) = 0 [pid 800] write(3, "1000", 4 [pid 299] rmdir("./124" [pid 801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 800] <... write resumed>) = 4 [pid 801] <... openat resumed>) = 3 [pid 800] close(3 [pid 300] getdents64(3, [pid 299] <... rmdir resumed>) = 0 [pid 801] write(3, "1000", 4 [pid 800] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 801] <... write resumed>) = 4 [pid 800] symlink("/dev/binderfs", "./binderfs" [pid 300] close(3 [pid 801] close(3 [pid 299] mkdir("./125", 0777 [pid 801] <... close resumed>) = 0 [pid 800] <... symlink resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 801] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... mkdir resumed>) = 0 executing program [pid 800] write(1, "executing program\n", 18) = 18 [pid 800] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./125" [pid 801] write(1, "executing program\n", 18executing program [pid 800] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 801] <... write resumed>) = 18 [pid 801] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 802 attached ) = 0 [pid 800] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] mkdir("./126", 0777 [pid 802] set_robust_list(0x5555726b0660, 24 [pid 300] <... mkdir resumed>) = 0 [pid 802] <... set_robust_list resumed>) = 0 [pid 801] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 802] chdir("./125" [pid 801] <... mount resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 802] <... chdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 802 [pid 802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 800] <... mount resumed>) = 0 [pid 800] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 801] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 800] <... openat resumed>) = 3 [pid 801] <... openat resumed>) = 3 [pid 800] exit_group(0./strace-static-x86_64: Process 803 attached [pid 801] exit_group(0) = ? [pid 800] <... exit_group resumed>) = ? [pid 803] set_robust_list(0x5555726b0660, 24 [pid 802] setpgid(0, 0 [pid 801] +++ exited with 0 +++ [pid 803] <... set_robust_list resumed>) = 0 [pid 802] <... setpgid resumed>) = 0 [pid 803] chdir("./126" [pid 802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 800] +++ exited with 0 +++ [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 803 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=801, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 802] <... openat resumed>) = 3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 802] write(3, "1000", 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 803] <... chdir resumed>) = 0 [pid 802] <... write resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 802] close(3) = 0 [pid 803] <... prctl resumed>) = 0 [pid 802] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./126", MNT_FORCE|UMOUNT_NOFOLLOW [pid 803] setpgid(0, 0 [pid 297] umount2("./122", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 803] <... setpgid resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 802] <... symlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY executing program [pid 297] newfstatat(3, "", [pid 803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 802] write(1, "executing program\n", 18 [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 802] <... write resumed>) = 18 [pid 298] newfstatat(3, "", [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 803] <... openat resumed>) = 3 [pid 802] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 803] write(3, "1000", 4 [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 803] <... write resumed>) = 4 [pid 802] <... mkdirat resumed>) = 0 [pid 298] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 803] close(3) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 803] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./122/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 803] <... symlink resumed>) = 0 [pid 297] umount2("./122/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 802] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 803] write(1, "executing program\n", 18 [pid 802] <... mount resumed>) = 0 [pid 298] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./122/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 803] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./122/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 803] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./126/binderfs2", [pid 297] <... rmdir resumed>) = 0 [pid 802] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 802] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 802] <... exit_group resumed>) = ? [pid 297] newfstatat(AT_FDCWD, "./122/binderfs", [pid 803] <... mkdirat resumed>) = 0 [pid 802] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] openat(AT_FDCWD, "./126/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 803] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./122/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./122" [pid 803] <... mount resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 803] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] mkdir("./123", 0777 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./126/binderfs2") = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 803] <... openat resumed>) = 3 [pid 298] umount2("./126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 803] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 803] <... exit_group resumed>) = ? [pid 298] newfstatat(AT_FDCWD, "./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 804 attached [pid 804] set_robust_list(0x5555726b0660, 24) = 0 [pid 804] chdir("./123" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 804 [pid 803] +++ exited with 0 +++ [pid 804] <... chdir resumed>) = 0 [pid 804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 804] setpgid(0, 0 [pid 298] unlink("./126/binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=803, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 804] <... setpgid resumed>) = 0 [pid 804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... unlink resumed>) = 0 [pid 804] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 804] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 804] <... write resumed>) = 4 [pid 804] close(3) = 0 [pid 298] close(3 [pid 804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... close resumed>) = 0 [pid 804] write(1, "executing program\n", 18 [pid 298] rmdir("./126"executing program [pid 804] <... write resumed>) = 18 [pid 804] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./127", 0777 [pid 804] <... mkdirat resumed>) = 0 [pid 804] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 804] <... mount resumed>) = 0 [pid 804] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 804] exit_group(0./strace-static-x86_64: Process 805 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 805 [pid 299] <... restart_syscall resumed>) = 0 [pid 805] set_robust_list(0x5555726b0660, 24) = 0 [pid 805] chdir("./127" [pid 804] <... exit_group resumed>) = ? [pid 299] umount2("./125", MNT_FORCE|UMOUNT_NOFOLLOW [pid 805] <... chdir resumed>) = 0 [pid 804] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 805] setpgid(0, 0) = 0 [pid 805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 299] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./126", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 805] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 805] write(3, "1000", 4) = 4 [pid 300] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 805] close(3 [pid 300] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 300] getdents64(3, [pid 805] <... close resumed>) = 0 [pid 805] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 805] write(1, "executing program\n", 18 [pid 300] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 805] <... write resumed>) = 18 [pid 805] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 805] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 805] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./125/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./126/binderfs2", [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./125/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./123", MNT_FORCE|UMOUNT_NOFOLLOW [pid 805] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 805] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] openat(AT_FDCWD, "./126/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 805] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 805] exit_group(0 [pid 300] newfstatat(4, "", [pid 299] getdents64(4, [pid 297] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 805] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 805] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 297] newfstatat(3, "", [pid 300] rmdir("./126/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=805, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./125/binderfs2" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./126/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./125/binderfs", [pid 298] umount2("./127", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./126/binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] unlink("./125/binderfs" [pid 298] newfstatat(3, "", [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3 [pid 298] getdents64(3, [pid 299] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./123/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] rmdir("./126" [pid 299] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 298] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] rmdir("./125" [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./123/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./127/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./127/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./127/binderfs2" [pid 300] mkdir("./127", 0777 [pid 299] mkdir("./126", 0777 [pid 297] openat(AT_FDCWD, "./123/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] umount2("./127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] unlink("./127/binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(4, [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 298] close(3) = 0 [pid 298] rmdir("./127") = 0 [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 806 attached [pid 806] set_robust_list(0x5555726b0660, 24) = 0 [pid 806] chdir("./127" [pid 298] mkdir("./128", 0777./strace-static-x86_64: Process 807 attached [pid 806] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 806 [pid 298] <... mkdir resumed>) = 0 [pid 297] rmdir("./123/binderfs2" [pid 806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 806] setpgid(0, 0) = 0 [pid 806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 807] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 807 [pid 297] <... rmdir resumed>) = 0 [pid 806] <... openat resumed>) = 3 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 808 attached [pid 807] <... set_robust_list resumed>) = 0 [pid 806] write(3, "1000", 4 [pid 297] umount2("./123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 807] chdir("./126" [pid 806] <... write resumed>) = 4 [pid 808] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 807] <... chdir resumed>) = 0 [pid 808] <... set_robust_list resumed>) = 0 [pid 807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(AT_FDCWD, "./123/binderfs", [pid 806] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 806] <... close resumed>) = 0 [pid 808] chdir("./128" [pid 807] <... prctl resumed>) = 0 [pid 806] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 808 [pid 807] setpgid(0, 0 [pid 297] unlink("./123/binderfs" [pid 808] <... chdir resumed>) = 0 [pid 807] <... setpgid resumed>) = 0 [pid 806] write(1, "executing program\n", 18) = 18 [pid 297] <... unlink resumed>) = 0 [pid 808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 806] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 297] getdents64(3, [pid 808] setpgid(0, 0 [pid 807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 808] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] close(3) = 0 [pid 806] <... mkdirat resumed>) = 0 [pid 297] rmdir("./123" [pid 806] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 808] <... openat resumed>) = 3 [pid 807] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 808] write(3, "1000", 4 [pid 807] write(3, "1000", 4 [pid 806] <... mount resumed>) = 0 [pid 806] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 806] exit_group(0 [pid 808] <... write resumed>) = 4 [pid 807] <... write resumed>) = 4 [pid 806] <... exit_group resumed>) = ? [pid 808] close(3 [pid 807] close(3 [pid 806] +++ exited with 0 +++ [pid 297] mkdir("./124", 0777 [pid 808] <... close resumed>) = 0 [pid 807] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 808] symlink("/dev/binderfs", "./binderfs" [pid 807] symlink("/dev/binderfs", "./binderfs" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 807] <... symlink resumed>) = 0 [pid 808] <... symlink resumed>) = 0 executing program executing program [pid 808] write(1, "executing program\n", 18 [pid 807] write(1, "executing program\n", 18 [pid 297] <... mkdir resumed>) = 0 [pid 808] <... write resumed>) = 18 [pid 807] <... write resumed>) = 18 [pid 808] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 807] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 807] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 809 attached [pid 809] set_robust_list(0x5555726b0660, 24) = 0 [pid 809] chdir("./124") = 0 [pid 809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 809] setpgid(0, 0) = 0 [pid 809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 808] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 809] <... openat resumed>) = 3 [pid 809] write(3, "1000", 4 [pid 807] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 809] <... write resumed>) = 4 [pid 809] close(3) = 0 [pid 809] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 809] write(1, "executing program\n", 18) = 18 [pid 809] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 808] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 807] <... mount resumed>) = 0 [pid 300] umount2("./127", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 809 [pid 809] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 808] <... mount resumed>) = 0 [pid 809] <... mount resumed>) = 0 [pid 809] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 809] exit_group(0 [pid 808] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 807] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 809] <... exit_group resumed>) = ? [pid 809] +++ exited with 0 +++ [pid 808] <... openat resumed>) = 3 [pid 807] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 808] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 807] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=809, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 808] <... exit_group resumed>) = ? [pid 807] <... exit_group resumed>) = ? [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 808] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = 0 [pid 807] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=807, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./127/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./127/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./127/binderfs2") = 0 [pid 300] umount2("./127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./128", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./127/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./127/binderfs" [pid 298] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 298] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] close(3 [pid 299] umount2("./126", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./127" [pid 297] umount2("./124", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./128/binderfs2", [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./128/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 300] mkdir("./128", 0777 [pid 299] newfstatat(3, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 [pid 298] close(4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./128/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 810 attached [pid 298] umount2("./128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 810] set_robust_list(0x5555726b0660, 24 [pid 298] newfstatat(AT_FDCWD, "./128/binderfs", [pid 810] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 810] chdir("./128" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 810 [pid 299] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./128/binderfs" [pid 297] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 810] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./126/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./124/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 810] <... prctl resumed>) = 0 [pid 298] getdents64(3, [pid 810] setpgid(0, 0 [pid 299] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./124/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 810] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./126/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 810] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 298] rmdir("./128" [pid 297] openat(AT_FDCWD, "./124/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", [pid 298] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 297] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 810] write(3, "1000", 4 [pid 298] mkdir("./129", 0777 [pid 810] <... write resumed>) = 4 [pid 299] getdents64(4, [pid 298] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 810] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 810] <... close resumed>) = 0 [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 810] symlink("/dev/binderfs", "./binderfs"executing program [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 810] <... symlink resumed>) = 0 [pid 810] write(1, "executing program\n", 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 810] <... write resumed>) = 18 [pid 299] rmdir("./126/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 811 attached [pid 810] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 811 [pid 810] <... mkdirat resumed>) = 0 [pid 811] set_robust_list(0x5555726b0660, 24 [pid 810] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] rmdir("./124/binderfs2") = 0 [pid 811] <... set_robust_list resumed>) = 0 [pid 299] umount2("./126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 811] chdir("./129" [pid 810] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./124/binderfs", [pid 299] newfstatat(AT_FDCWD, "./126/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 811] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 810] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] unlink("./126/binderfs" [pid 297] unlink("./124/binderfs" [pid 811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 810] exit_group(0 [pid 811] <... prctl resumed>) = 0 [pid 810] <... exit_group resumed>) = ? [pid 297] <... unlink resumed>) = 0 [pid 811] setpgid(0, 0 [pid 297] getdents64(3, [pid 811] <... setpgid resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 810] +++ exited with 0 +++ [pid 299] <... unlink resumed>) = 0 [pid 297] close(3) = 0 [pid 811] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=810, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] rmdir("./124" [pid 299] getdents64(3, [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 811] write(3, "1000", 4) = 4 [pid 299] close(3 [pid 297] mkdir("./125", 0777 [pid 811] close(3 [pid 299] <... close resumed>) = 0 [pid 811] <... close resumed>) = 0 [pid 299] rmdir("./126" [pid 811] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 811] <... symlink resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 executing program [pid 811] write(1, "executing program\n", 18 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] mkdir("./127", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./128", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... mkdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 811] <... write resumed>) = 18 ./strace-static-x86_64: Process 812 attached [pid 811] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 812 [pid 300] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./128/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 811] <... mkdirat resumed>) = 0 [pid 300] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./128/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", ./strace-static-x86_64: Process 813 attached [pid 813] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 813] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 813] chdir("./127" [pid 812] set_robust_list(0x5555726b0660, 24 [pid 811] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 813 [pid 812] <... set_robust_list resumed>) = 0 [pid 813] <... chdir resumed>) = 0 [pid 812] chdir("./125" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 813] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 813] setpgid(0, 0 [pid 300] close(4 [pid 813] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./128/binderfs2" [pid 813] <... openat resumed>) = 3 [pid 812] <... chdir resumed>) = 0 [pid 811] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 813] write(3, "1000", 4) = 4 [pid 813] close(3) = 0 [pid 813] symlink("/dev/binderfs", "./binderfs") = 0 [pid 812] <... prctl resumed>) = 0 [pid 811] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 812] setpgid(0, 0) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./128/binderfs", [pid 811] <... openat resumed>) = 3 [pid 813] write(1, "executing program\n", 18 [pid 812] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 813] <... write resumed>) = 18 [pid 812] write(3, "1000", 4 [pid 811] exit_group(0 [pid 300] unlink("./128/binderfs" [pid 813] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 812] <... write resumed>) = 4 [pid 811] <... exit_group resumed>) = ? [pid 300] <... unlink resumed>) = 0 [pid 812] close(3 [pid 813] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./128" [pid 811] +++ exited with 0 +++ [pid 813] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 812] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 813] <... mount resumed>) = 0 [pid 812] symlink("/dev/binderfs", "./binderfs" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=811, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] mkdir("./129", 0777 [pid 812] <... symlink resumed>) = 0 executing program [pid 812] write(1, "executing program\n", 18 [pid 300] <... mkdir resumed>) = 0 [pid 812] <... write resumed>) = 18 [pid 813] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 813] <... openat resumed>) = 3 [pid 812] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 814 attached [pid 813] exit_group(0) = ? [pid 814] set_robust_list(0x5555726b0660, 24 [pid 812] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 814 [pid 814] <... set_robust_list resumed>) = 0 [pid 812] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 814] chdir("./129" [pid 813] +++ exited with 0 +++ [pid 814] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=813, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 814] <... prctl resumed>) = 0 [pid 812] <... mount resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 814] setpgid(0, 0) = 0 [pid 814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./127", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 812] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./129", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 298] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 814] <... openat resumed>) = 3 [pid 812] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 3 [pid 814] write(3, "1000", 4 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 814] <... write resumed>) = 4 [pid 812] exit_group(0 [pid 298] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 814] close(3 [pid 812] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 814] <... close resumed>) = 0 [pid 814] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./129/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 812] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./129/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=812, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 299] <... umount2 resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./129/binderfs2"executing program [pid 814] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./129/binderfs", [pid 814] write(1, "executing program\n", 18 [pid 299] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 814] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 814] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./129/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 814] <... mkdirat resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./127/binderfs2", [pid 298] close(3) = 0 [pid 298] rmdir("./129" [pid 814] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./130", 0777 [pid 299] openat(AT_FDCWD, "./127/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 815 attached , child_tidptr=0x5555726b0650) = 815 [pid 815] set_robust_list(0x5555726b0660, 24) = 0 [pid 815] chdir("./130") = 0 [pid 815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 814] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 815] <... prctl resumed>) = 0 [pid 815] setpgid(0, 0) = 0 [pid 299] newfstatat(4, "", [pid 815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 814] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(4, [pid 815] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 815] write(3, "1000", 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 815] <... write resumed>) = 4 [pid 299] getdents64(4, [pid 815] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 815] <... close resumed>) = 0 [pid 299] close(4 [pid 815] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./125", MNT_FORCE|UMOUNT_NOFOLLOW [pid 815] <... symlink resumed>) = 0 [pid 814] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./127/binderfs2" [pid 297] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 815] write(1, "executing program\n", 18) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] umount2("./127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./127/binderfs", [pid 815] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 814] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 815] <... mkdirat resumed>) = 0 [pid 814] <... exit_group resumed>) = ? [pid 299] unlink("./127/binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 815] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 814] +++ exited with 0 +++ [pid 299] <... unlink resumed>) = 0 [pid 297] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 815] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 815] exit_group(0) = ? [pid 299] getdents64(3, [pid 297] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 815] +++ exited with 0 +++ [pid 299] close(3 [pid 297] newfstatat(AT_FDCWD, "./125/binderfs2", [pid 299] <... close resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./127" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./125/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./125/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./128", 0777 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 ./strace-static-x86_64: Process 816 attached [pid 297] rmdir("./125/binderfs2" [pid 816] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 816 [pid 816] <... set_robust_list resumed>) = 0 [pid 816] chdir("./128" [pid 297] <... rmdir resumed>) = 0 [pid 816] <... chdir resumed>) = 0 [pid 297] umount2("./125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 816] setpgid(0, 0) = 0 [pid 816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 816] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./125/binderfs", [pid 816] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 816] <... write resumed>) = 4 [pid 297] unlink("./125/binderfs" [pid 816] close(3) = 0 [pid 816] symlink("/dev/binderfs", "./binderfs" [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 816] <... symlink resumed>) = 0 [pid 297] close(3 executing program [pid 816] write(1, "executing program\n", 18 [pid 297] <... close resumed>) = 0 [pid 816] <... write resumed>) = 18 [pid 297] rmdir("./125" [pid 816] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 816] <... mkdirat resumed>) = 0 [pid 297] mkdir("./126", 0777 [pid 816] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 816] <... mount resumed>) = 0 [pid 816] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY./strace-static-x86_64: Process 817 attached [pid 817] set_robust_list(0x5555726b0660, 24 [pid 816] <... openat resumed>) = 3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 817 [pid 817] <... set_robust_list resumed>) = 0 [pid 817] chdir("./126") = 0 [pid 817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 817] setpgid(0, 0) = 0 [pid 817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 816] exit_group(0executing program ) = ? [pid 817] <... openat resumed>) = 3 [pid 817] write(3, "1000", 4) = 4 [pid 817] close(3) = 0 [pid 817] symlink("/dev/binderfs", "./binderfs") = 0 [pid 817] write(1, "executing program\n", 18) = 18 [pid 816] +++ exited with 0 +++ [pid 817] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=816, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... restart_syscall resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./129", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 817] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 817] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./130", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 817] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 817] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 817] exit_group(0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 817] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./129/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./129/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./129/binderfs2") = 0 [pid 300] umount2("./129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./129/binderfs" [pid 817] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=817, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(3, [pid 299] umount2("./128", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(3 [pid 299] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 298] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 300] rmdir("./129" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./130", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 299] getdents64(3, [pid 298] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./130/binderfs2", [pid 300] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 818 attached ) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./130/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 299] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./128/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 818] set_robust_list(0x5555726b0660, 24 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 818] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 818 [pid 818] chdir("./130") = 0 [pid 299] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 818] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 818] setpgid(0, 0 [pid 299] openat(AT_FDCWD, "./128/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] close(4 [pid 818] <... setpgid resumed>) = 0 [pid 818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 818] <... openat resumed>) = 3 [pid 298] rmdir("./130/binderfs2" [pid 299] newfstatat(4, "", [pid 818] write(3, "1000", 4) = 4 [pid 818] close(3) = 0 [pid 818] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] getdents64(4, executing program [pid 818] write(1, "executing program\n", 18) = 18 [pid 818] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 818] <... mkdirat resumed>) = 0 [pid 299] close(4 [pid 298] newfstatat(AT_FDCWD, "./130/binderfs", [pid 818] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./128/binderfs2" [pid 298] unlink("./130/binderfs" [pid 818] <... mount resumed>) = 0 [pid 818] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... unlink resumed>) = 0 [pid 818] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 299] umount2("./128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 818] exit_group(0) = ? [pid 299] newfstatat(AT_FDCWD, "./128/binderfs", [pid 298] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./130" [pid 297] <... restart_syscall resumed>) = 0 [pid 818] +++ exited with 0 +++ [pid 299] unlink("./128/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 298] mkdir("./131", 0777 [pid 297] umount2("./126", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./128") = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./129", 0777 [pid 297] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(3, [pid 299] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 820 attached ./strace-static-x86_64: Process 819 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 820 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 819 [pid 820] set_robust_list(0x5555726b0660, 24 [pid 819] set_robust_list(0x5555726b0660, 24 [pid 820] <... set_robust_list resumed>) = 0 [pid 819] <... set_robust_list resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 820] chdir("./129" [pid 297] newfstatat(AT_FDCWD, "./126/binderfs2", [pid 819] chdir("./131" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./126/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 820] <... chdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./126/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 819] <... chdir resumed>) = 0 [pid 820] <... prctl resumed>) = 0 [pid 819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 820] setpgid(0, 0 [pid 819] <... prctl resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 820] <... setpgid resumed>) = 0 [pid 819] setpgid(0, 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 819] <... setpgid resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] getdents64(4, [pid 819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./130", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] close(4 [pid 820] <... openat resumed>) = 3 [pid 819] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 820] write(3, "1000", 4 [pid 819] write(3, "1000", 4 [pid 300] getdents64(3, [pid 820] <... write resumed>) = 4 [pid 819] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] rmdir("./126/binderfs2" [pid 820] close(3 [pid 819] close(3 [pid 300] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 820] <... close resumed>) = 0 [pid 819] <... close resumed>) = 0 [pid 820] symlink("/dev/binderfs", "./binderfs" [pid 819] symlink("/dev/binderfs", "./binderfs" [pid 820] <... symlink resumed>) = 0 [pid 819] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./126/binderfs"executing program [pid 819] write(1, "executing program\n", 18 [pid 820] write(1, "executing program\n", 18 executing program [pid 819] <... write resumed>) = 18 [pid 820] <... write resumed>) = 18 [pid 820] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 819] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./130/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 820] <... mkdirat resumed>) = 0 [pid 300] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(3 [pid 300] openat(AT_FDCWD, "./130/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(4, "", [pid 297] rmdir("./126" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] mkdir("./127", 0777 [pid 300] close(4 [pid 819] <... mkdirat resumed>) = 0 [pid 820] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 819] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... close resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] rmdir("./130/binderfs2") = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 820] <... mount resumed>) = 0 [pid 300] umount2("./130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 819] <... mount resumed>) = 0 ./strace-static-x86_64: Process 821 attached [pid 300] unlink("./130/binderfs") = 0 [pid 821] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 821 [pid 821] <... set_robust_list resumed>) = 0 [pid 300] getdents64(3, [pid 821] chdir("./127" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 821] <... chdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] rmdir("./130" [pid 821] setpgid(0, 0 [pid 820] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 819] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 821] <... setpgid resumed>) = 0 [pid 821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 820] <... openat resumed>) = 3 [pid 819] <... openat resumed>) = 3 [pid 821] <... openat resumed>) = 3 [pid 300] mkdir("./131", 0777 [pid 821] write(3, "1000", 4 [pid 820] exit_group(0 [pid 819] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 821] <... write resumed>) = 4 [pid 820] <... exit_group resumed>) = ? executing program [pid 819] <... exit_group resumed>) = ? [pid 821] close(3) = 0 [pid 821] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 819] +++ exited with 0 +++ [pid 821] write(1, "executing program\n", 18) = 18 [pid 821] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=819, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 822 attached [pid 821] <... mkdirat resumed>) = 0 [pid 298] umount2("./131", MNT_FORCE|UMOUNT_NOFOLLOW [pid 820] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 822] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 822 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 822] <... set_robust_list resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 822] chdir("./131" [pid 821] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 822] <... chdir resumed>) = 0 [pid 821] <... mount resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 822] setpgid(0, 0) = 0 [pid 822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 821] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 822] write(3, "1000", 4 [pid 821] <... openat resumed>) = 3 [pid 298] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 822] <... write resumed>) = 4 [pid 822] close(3 [pid 821] exit_group(0 [pid 822] <... close resumed>) = 0 [pid 822] symlink("/dev/binderfs", "./binderfs") = 0 [pid 821] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = 0 executing program [pid 298] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 822] write(1, "executing program\n", 18) = 18 [pid 821] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=821, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 822] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 822] <... mkdirat resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./131/binderfs2", [pid 822] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./131/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 822] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./127", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 822] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(3, "", [pid 298] close(4 [pid 822] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 822] exit_group(0 [pid 298] rmdir("./131/binderfs2" [pid 297] getdents64(3, [pid 822] <... exit_group resumed>) = ? [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 822] +++ exited with 0 +++ [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./131/binderfs", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./127/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./127/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./127/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./127/binderfs2") = 0 [pid 298] unlink("./131/binderfs" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./129", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./127/binderfs", [pid 300] umount2("./131", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./127/binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(3 [pid 297] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./131" [pid 299] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./127" [pid 300] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] mkdir("./132", 0777 [pid 297] mkdir("./128", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 824 attached ./strace-static-x86_64: Process 823 attached [pid 300] getdents64(3, [pid 299] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 823] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 824] set_robust_list(0x5555726b0660, 24) = 0 [pid 824] chdir("./128" [pid 823] <... set_robust_list resumed>) = 0 [pid 823] chdir("./132" [pid 824] <... chdir resumed>) = 0 [pid 300] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 823 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 824 [pid 824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 823] <... chdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./129/binderfs2", [pid 824] <... prctl resumed>) = 0 [pid 823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 824] setpgid(0, 0) = 0 [pid 823] <... prctl resumed>) = 0 [pid 824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 823] setpgid(0, 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 823] <... setpgid resumed>) = 0 [pid 299] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 824] <... openat resumed>) = 3 [pid 823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 824] write(3, "1000", 4 [pid 823] <... openat resumed>) = 3 [pid 300] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 824] <... write resumed>) = 4 [pid 299] openat(AT_FDCWD, "./129/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 824] close(3 [pid 823] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./131/binderfs2", [pid 299] <... openat resumed>) = 4 [pid 824] <... close resumed>) = 0 [pid 823] <... write resumed>) = 4 [pid 824] symlink("/dev/binderfs", "./binderfs" [pid 823] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", [pid 824] <... symlink resumed>) = 0 [pid 823] <... close resumed>) = 0 [pid 300] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 824] write(1, "executing program\n", 18 [pid 823] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 824] <... write resumed>) = 18 [pid 823] <... symlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./131/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 824] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 300] getdents64(4, executing program [pid 823] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 824] <... mkdirat resumed>) = 0 [pid 823] <... write resumed>) = 18 [pid 300] getdents64(4, [pid 299] rmdir("./129/binderfs2" [pid 824] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 823] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 824] <... mount resumed>) = 0 [pid 823] <... mkdirat resumed>) = 0 [pid 300] close(4) = 0 [pid 299] umount2("./129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./131/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 824] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 823] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./129/binderfs", [pid 824] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./129/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./131/binderfs", [pid 823] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 824] exit_group(0 [pid 300] unlink("./131/binderfs" [pid 299] getdents64(3, [pid 824] <... exit_group resumed>) = ? [pid 823] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] rmdir("./129" [pid 824] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] rmdir("./131" [pid 823] <... openat resumed>) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=824, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 823] exit_group(0 [pid 300] <... rmdir resumed>) = 0 [pid 299] mkdir("./130", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 823] <... exit_group resumed>) = ? [pid 300] mkdir("./132", 0777) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 823] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=823, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 825 attached [pid 298] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 826 attached [pid 826] set_robust_list(0x5555726b0660, 24) = 0 [pid 825] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 825 [pid 825] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 826 [pid 826] chdir("./132" [pid 825] chdir("./130" [pid 826] <... chdir resumed>) = 0 [pid 826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 826] setpgid(0, 0) = 0 [pid 826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 825] <... chdir resumed>) = 0 [pid 825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 826] <... openat resumed>) = 3 [pid 825] <... prctl resumed>) = 0 [pid 826] write(3, "1000", 4) = 4 [pid 825] setpgid(0, 0 [pid 826] close(3 [pid 825] <... setpgid resumed>) = 0 [pid 826] <... close resumed>) = 0 [pid 826] symlink("/dev/binderfs", "./binderfs" [pid 825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 825] write(3, "1000", 4) = 4 [pid 826] <... symlink resumed>) = 0 [pid 825] close(3executing program [pid 826] write(1, "executing program\n", 18 [pid 825] <... close resumed>) = 0 [pid 826] <... write resumed>) = 18 [pid 826] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 825] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 825] write(1, "executing program\n", 18) = 18 [pid 825] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 826] <... mkdirat resumed>) = 0 [pid 826] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 826] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 825] <... mkdirat resumed>) = 0 [pid 825] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./132", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 825] <... mount resumed>) = 0 [pid 298] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 826] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 826] exit_group(0 [pid 298] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 826] <... exit_group resumed>) = ? [pid 825] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 826] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 825] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=826, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 825] exit_group(0) = ? [pid 298] newfstatat(AT_FDCWD, "./132/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./128", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 825] +++ exited with 0 +++ [pid 298] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=825, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./132/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(4, "", [pid 297] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] getdents64(4, [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = 0 [pid 300] umount2("./132", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./130", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 297] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./132/binderfs2" [pid 299] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./128/binderfs2", [pid 300] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 300] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 297] umount2("./128/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./128/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 298] newfstatat(AT_FDCWD, "./132/binderfs", [pid 297] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] unlink("./132/binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 297] getdents64(4, [pid 300] newfstatat(AT_FDCWD, "./132/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./132/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 298] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", [pid 298] <... close resumed>) = 0 [pid 297] close(4 [pid 299] newfstatat(AT_FDCWD, "./130/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./132" [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./128/binderfs2" [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./132/binderfs2") = 0 [pid 299] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./130/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./132/binderfs" [pid 299] <... openat resumed>) = 4 [pid 298] mkdir("./133", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./128/binderfs", [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./132") = 0 [pid 299] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] unlink("./128/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] mkdir("./133", 0777 [pid 297] <... unlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, [pid 297] getdents64(3, ./strace-static-x86_64: Process 827 attached 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 827 [pid 297] close(3 [pid 299] close(4 [pid 297] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] rmdir("./128" [pid 299] rmdir("./130/binderfs2" [pid 827] set_robust_list(0x5555726b0660, 24 [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 828 attached [pid 827] <... set_robust_list resumed>) = 0 [pid 827] chdir("./133") = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 828 [pid 299] <... rmdir resumed>) = 0 [pid 297] mkdir("./129", 0777 [pid 828] set_robust_list(0x5555726b0660, 24 [pid 827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 827] setpgid(0, 0) = 0 [pid 827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... mkdir resumed>) = 0 [pid 828] <... set_robust_list resumed>) = 0 [pid 299] umount2("./130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 827] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 827] write(3, "1000", 4) = 4 [pid 827] close(3) = 0 [pid 827] symlink("/dev/binderfs", "./binderfs" executing program [pid 828] chdir("./133" [pid 299] newfstatat(AT_FDCWD, "./130/binderfs", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 828] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 827] <... symlink resumed>) = 0 [pid 827] write(1, "executing program\n", 18) = 18 [pid 827] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 829 attached [pid 828] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 827] <... mkdirat resumed>) = 0 [pid 299] unlink("./130/binderfs" [pid 828] <... prctl resumed>) = 0 [pid 829] set_robust_list(0x5555726b0660, 24) = 0 [pid 829] chdir("./129" [pid 828] setpgid(0, 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 829 [pid 829] <... chdir resumed>) = 0 [pid 828] <... setpgid resumed>) = 0 [pid 827] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 827] <... mount resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 829] setpgid(0, 0 [pid 299] close(3 [pid 829] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./130" [pid 829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 829] write(3, "1000", 4 [pid 828] <... openat resumed>) = 3 [pid 827] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 829] <... write resumed>) = 4 [pid 828] write(3, "1000", 4 [pid 299] mkdir("./131", 0777 [pid 828] <... write resumed>) = 4 [pid 829] close(3 [pid 828] close(3 [pid 827] <... openat resumed>) = 3 [pid 829] <... close resumed>) = 0 [pid 828] <... close resumed>) = 0 [pid 829] symlink("/dev/binderfs", "./binderfs" [pid 827] exit_group(0 [pid 829] <... symlink resumed>) = 0 [pid 828] symlink("/dev/binderfs", "./binderfs" [pid 299] <... mkdir resumed>) = 0 [pid 827] <... exit_group resumed>) = ? [pid 828] <... symlink resumed>) = 0 [pid 827] +++ exited with 0 +++ [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 829] write(1, "executing program\n", 18) = 18 [pid 829] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program ./strace-static-x86_64: Process 830 attached [pid 828] write(1, "executing program\n", 18executing program [pid 830] set_robust_list(0x5555726b0660, 24 [pid 829] <... mkdirat resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=827, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 828] <... write resumed>) = 18 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 828] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 830 [pid 830] <... set_robust_list resumed>) = 0 [pid 829] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 830] chdir("./131" [pid 829] <... mount resumed>) = 0 [pid 828] <... mkdirat resumed>) = 0 [pid 830] <... chdir resumed>) = 0 [pid 830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... restart_syscall resumed>) = 0 [pid 830] <... prctl resumed>) = 0 [pid 830] setpgid(0, 0) = 0 [pid 828] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./133", MNT_FORCE|UMOUNT_NOFOLLOW [pid 830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 829] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 830] <... openat resumed>) = 3 [pid 829] <... openat resumed>) = 3 [pid 830] write(3, "1000", 4 [pid 829] exit_group(0 [pid 828] <... mount resumed>) = 0 [pid 298] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 830] <... write resumed>) = 4 [pid 830] close(3 [pid 829] <... exit_group resumed>) = ? [pid 830] <... close resumed>) = 0 [pid 829] +++ exited with 0 +++ [pid 828] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... openat resumed>) = 3 [pid 830] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(3, "", executing program [pid 830] <... symlink resumed>) = 0 [pid 828] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 830] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=829, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 830] <... write resumed>) = 18 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 830] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 828] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 828] <... exit_group resumed>) = ? [pid 298] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 830] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 830] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 830] exit_group(0) = ? [pid 298] <... umount2 resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 830] +++ exited with 0 +++ [pid 828] +++ exited with 0 +++ [pid 298] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./129", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=830, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(AT_FDCWD, "./133/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=828, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./133/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 297] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, [pid 297] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] close(4 [pid 297] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./133/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./129/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./129/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./129/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] unlink("./133/binderfs" [pid 297] newfstatat(4, "", [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./133" [pid 297] getdents64(4, [pid 299] umount2("./131", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 299] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./129/binderfs2" [pid 299] newfstatat(3, "", [pid 298] mkdir("./134", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 300] umount2("./133", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./129/binderfs", ./strace-static-x86_64: Process 831 attached [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 831] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./129/binderfs" [pid 831] <... set_robust_list resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./131/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 831 [pid 300] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 831] chdir("./134" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 831] <... chdir resumed>) = 0 [pid 300] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 831] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 831] setpgid(0, 0 [pid 297] close(3 [pid 300] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 831] <... setpgid resumed>) = 0 [pid 297] rmdir("./129" [pid 299] openat(AT_FDCWD, "./131/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./133/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./133/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 831] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 831] write(3, "1000", 4 [pid 297] mkdir("./130", 0777 [pid 831] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 831] close(3 [pid 299] getdents64(4, [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./133/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 831] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 300] umount2("./133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 831] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 831] <... symlink resumed>) = 0 [pid 300] unlink("./133/binderfs") = 0 [pid 299] close(4./strace-static-x86_64: Process 832 attached executing program [pid 831] write(1, "executing program\n", 18 [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 831] <... write resumed>) = 18 [pid 299] rmdir("./131/binderfs2" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 832 [pid 831] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] rmdir("./133" [pid 831] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./134", 0777 [pid 832] set_robust_list(0x5555726b0660, 24 [pid 831] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 832] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 832] chdir("./130" [pid 299] newfstatat(AT_FDCWD, "./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 832] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 833 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 833 [pid 831] <... mount resumed>) = 0 [pid 299] unlink("./131/binderfs" [pid 832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 833] set_robust_list(0x5555726b0660, 24) = 0 [pid 833] chdir("./134" [pid 299] <... unlink resumed>) = 0 [pid 833] <... chdir resumed>) = 0 [pid 833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 833] setpgid(0, 0) = 0 [pid 832] <... prctl resumed>) = 0 [pid 299] getdents64(3, [pid 831] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 832] setpgid(0, 0 [pid 833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 832] <... setpgid resumed>) = 0 [pid 299] close(3 [pid 833] <... openat resumed>) = 3 [pid 831] <... openat resumed>) = 3 [pid 833] write(3, "1000", 4 [pid 299] <... close resumed>) = 0 [pid 833] <... write resumed>) = 4 [pid 832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 833] close(3 [pid 831] exit_group(0 [pid 299] rmdir("./131" [pid 833] <... close resumed>) = 0 [pid 832] <... openat resumed>) = 3 [pid 831] <... exit_group resumed>) = ? [pid 833] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 833] write(1, "executing program\n", 18) = 18 [pid 833] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 832] write(3, "1000", 4 [pid 831] +++ exited with 0 +++ [pid 299] mkdir("./132", 0777 [pid 832] <... write resumed>) = 4 [pid 832] close(3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=831, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 833] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 833] <... mount resumed>) = 0 [pid 832] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 832] symlink("/dev/binderfs", "./binderfs" [pid 833] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 833] exit_group(0) = ? [pid 832] <... symlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 834 attached [pid 832] write(1, "executing program\n", 18executing program [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 834 [pid 832] <... write resumed>) = 18 [pid 834] set_robust_list(0x5555726b0660, 24 [pid 832] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 834] <... set_robust_list resumed>) = 0 [pid 834] chdir("./132" [pid 832] <... mkdirat resumed>) = 0 [pid 834] <... chdir resumed>) = 0 [pid 834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 833] +++ exited with 0 +++ [pid 832] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 834] <... prctl resumed>) = 0 [pid 834] setpgid(0, 0) = 0 [pid 834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 834] write(3, "1000", 4) = 4 [pid 834] close(3) = 0 [pid 834] symlink("/dev/binderfs", "./binderfs" [pid 832] <... mount resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=833, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 832] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 834] <... symlink resumed>) = 0 executing program [pid 834] write(1, "executing program\n", 18) = 18 [pid 834] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 832] <... openat resumed>) = 3 [pid 832] exit_group(0) = ? [pid 834] <... mkdirat resumed>) = 0 [pid 834] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 832] +++ exited with 0 +++ [pid 834] <... mount resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=832, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... restart_syscall resumed>) = 0 [pid 834] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] umount2("./134", MNT_FORCE|UMOUNT_NOFOLLOW [pid 834] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 834] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 834] +++ exited with 0 +++ [pid 300] getdents64(3, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=834, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 300] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./134/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./134", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./134/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(4, "", [pid 298] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] rmdir("./134/binderfs2" [pid 299] umount2("./132", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./134/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./134/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] unlink("./134/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./134/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./132/binderfs2", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 300] close(3 [pid 299] openat(AT_FDCWD, "./132/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] umount2("./130", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(3, "", [pid 299] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 299] rmdir("./132/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./134" [pid 299] <... rmdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./135", 0777 [pid 298] getdents64(4, [pid 299] umount2("./132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] close(4 [pid 297] <... umount2 resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./132/binderfs"./strace-static-x86_64: Process 835 attached ) = 0 [pid 298] rmdir("./134/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 835] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./130/binderfs2", [pid 835] chdir("./135" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(3 [pid 297] umount2("./130/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 835] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] rmdir("./132" [pid 297] openat(AT_FDCWD, "./130/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 835] <... prctl resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 835] setpgid(0, 0) = 0 [pid 835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 835 [pid 298] umount2("./134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 835] <... openat resumed>) = 3 [pid 299] mkdir("./133", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 835] write(3, "1000", 4 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 835] <... write resumed>) = 4 [pid 297] getdents64(4, [pid 835] close(3) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 835] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(4, [pid 835] <... symlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(AT_FDCWD, "./134/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 835] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4./strace-static-x86_64: Process 836 attached [pid 835] <... write resumed>) = 18 [pid 298] unlink("./134/binderfs" [pid 297] <... close resumed>) = 0 [pid 835] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... unlink resumed>) = 0 [pid 836] set_robust_list(0x5555726b0660, 24 [pid 298] getdents64(3, [pid 836] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] rmdir("./130/binderfs2" [pid 836] chdir("./133" [pid 835] <... mkdirat resumed>) = 0 [pid 298] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 836 [pid 836] <... chdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 835] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] rmdir("./134" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(AT_FDCWD, "./130/binderfs", [pid 836] <... prctl resumed>) = 0 [pid 835] <... mount resumed>) = 0 [pid 298] mkdir("./135", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 836] setpgid(0, 0) = 0 [pid 297] unlink("./130/binderfs" [pid 836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 835] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 835] <... openat resumed>) = 3 [pid 297] close(3) = 0 [pid 835] exit_group(0 [pid 297] rmdir("./130" [pid 835] <... exit_group resumed>) = ? [pid 297] <... rmdir resumed>) = 0 [pid 836] <... openat resumed>) = 3 [pid 835] +++ exited with 0 +++ [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 836] write(3, "1000", 4) = 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=835, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 836] close(3) = 0 [pid 836] symlink("/dev/binderfs", "./binderfs" [pid 297] mkdir("./131", 0777) = 0 ./strace-static-x86_64: Process 837 attached [pid 837] set_robust_list(0x5555726b0660, 24 [pid 836] <... symlink resumed>) = 0 [pid 837] <... set_robust_list resumed>) = 0 executing program [pid 836] write(1, "executing program\n", 18 [pid 837] chdir("./135" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 837 [pid 837] <... chdir resumed>) = 0 [pid 836] <... write resumed>) = 18 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 836] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 838 attached [pid 837] <... prctl resumed>) = 0 [pid 837] setpgid(0, 0) = 0 [pid 837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 838 [pid 300] <... restart_syscall resumed>) = 0 [pid 838] set_robust_list(0x5555726b0660, 24 [pid 837] <... openat resumed>) = 3 [pid 837] write(3, "1000", 4) = 4 [pid 837] close(3 [pid 838] <... set_robust_list resumed>) = 0 [pid 837] <... close resumed>) = 0 [pid 300] umount2("./135", MNT_FORCE|UMOUNT_NOFOLLOW [pid 838] chdir("./131" [pid 837] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 837] <... symlink resumed>) = 0 [pid 837] write(1, "executing program\n", 18 executing program [pid 836] <... mkdirat resumed>) = 0 [pid 837] <... write resumed>) = 18 [pid 837] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 838] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(3, "", [pid 838] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 838] setpgid(0, 0 [pid 300] getdents64(3, [pid 838] <... setpgid resumed>) = 0 [pid 836] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 837] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 837] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 836] <... mount resumed>) = 0 [pid 838] <... openat resumed>) = 3 [pid 837] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 837] exit_group(0) = ? [pid 300] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 838] write(3, "1000", 4) = 4 [pid 836] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 836] exit_group(0 [pid 300] <... umount2 resumed>) = 0 [pid 838] close(3) = 0 [pid 836] <... exit_group resumed>) = ? [pid 300] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 838] symlink("/dev/binderfs", "./binderfs" [pid 837] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 838] <... symlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./135/binderfs2", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=837, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) executing program [pid 836] +++ exited with 0 +++ [pid 838] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./135/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 838] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=836, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 838] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(4, "", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 838] <... mkdirat resumed>) = 0 [pid 300] getdents64(4, [pid 838] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./135/binderfs2" [pid 838] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./135/binderfs", [pid 838] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 838] <... openat resumed>) = 3 [pid 300] unlink("./135/binderfs" [pid 838] exit_group(0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./135" [pid 838] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./136", 0777) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 838] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=838, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 839 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 839 [pid 839] set_robust_list(0x5555726b0660, 24) = 0 [pid 839] chdir("./136") = 0 [pid 839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 839] setpgid(0, 0) = 0 [pid 839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 839] write(3, "1000", 4) = 4 [pid 839] close(3) = 0 [pid 839] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 839] write(1, "executing program\n", 18) = 18 [pid 839] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 839] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./131", MNT_FORCE|UMOUNT_NOFOLLOW [pid 839] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 839] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 839] exit_group(0) = ? [pid 839] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./131/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./131/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./131/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./133", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=839, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./135", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 297] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(3, "", [pid 298] newfstatat(3, "", [pid 297] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] rmdir("./131/binderfs2" [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 298] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./131/binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./131" [pid 299] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./132", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./135/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./133/binderfs2", [pid 298] openat(AT_FDCWD, "./135/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", ./strace-static-x86_64: Process 840 attached [pid 299] openat(AT_FDCWD, "./133/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 840 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 840] set_robust_list(0x5555726b0660, 24 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 840] <... set_robust_list resumed>) = 0 [pid 298] getdents64(4, [pid 840] chdir("./132" [pid 299] newfstatat(4, "", [pid 840] <... chdir resumed>) = 0 [pid 300] umount2("./136", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 840] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 840] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... openat resumed>) = 3 [pid 840] <... setpgid resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] getdents64(4, [pid 298] close(4 [pid 840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 299] close(4 [pid 298] rmdir("./135/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... close resumed>) = 0 [pid 300] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 840] <... openat resumed>) = 3 [pid 840] write(3, "1000", 4) = 4 [pid 840] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 299] rmdir("./133/binderfs2" [pid 840] <... close resumed>) = 0 [pid 840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... umount2 resumed>) = 0 executing program [pid 840] write(1, "executing program\n", 18) = 18 [pid 840] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 840] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 300] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./136/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./133/binderfs", [pid 298] newfstatat(AT_FDCWD, "./135/binderfs", [pid 840] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./133/binderfs" [pid 298] unlink("./135/binderfs" [pid 840] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... unlink resumed>) = 0 [pid 840] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 840] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./136/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 298] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 840] +++ exited with 0 +++ [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=840, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3 [pid 298] close(3 [pid 300] getdents64(4, [pid 298] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] rmdir("./135" [pid 299] rmdir("./133" [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./136/binderfs2" [pid 298] mkdir("./136", 0777 [pid 299] mkdir("./134", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./136/binderfs", [pid 298] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./136/binderfs") = 0 [pid 299] <... mkdir resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./136" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 842 attached ./strace-static-x86_64: Process 841 attached [pid 300] mkdir("./137", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 841 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 842 [pid 842] set_robust_list(0x5555726b0660, 24 [pid 841] set_robust_list(0x5555726b0660, 24 [pid 842] <... set_robust_list resumed>) = 0 [pid 841] <... set_robust_list resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 841] chdir("./136" [pid 842] chdir("./134" [pid 841] <... chdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 841] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 843 attached [pid 842] <... chdir resumed>) = 0 [pid 843] set_robust_list(0x5555726b0660, 24 [pid 842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 843 [pid 843] <... set_robust_list resumed>) = 0 [pid 297] umount2("./132", MNT_FORCE|UMOUNT_NOFOLLOW [pid 841] <... prctl resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 841] setpgid(0, 0 [pid 842] <... prctl resumed>) = 0 [pid 841] <... setpgid resumed>) = 0 [pid 297] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 843] chdir("./137" [pid 841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 841] write(3, "1000", 4) = 4 [pid 841] close(3) = 0 [pid 841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 842] setpgid(0, 0 [pid 841] write(1, "executing program\n", 18 [pid 297] <... openat resumed>) = 3 [pid 843] <... chdir resumed>) = 0 [pid 842] <... setpgid resumed>) = 0 executing program [pid 843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(3, "", [pid 841] <... write resumed>) = 18 [pid 843] <... prctl resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 843] setpgid(0, 0 [pid 842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 841] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 843] <... setpgid resumed>) = 0 [pid 842] <... openat resumed>) = 3 [pid 841] <... mkdirat resumed>) = 0 [pid 297] getdents64(3, [pid 841] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 842] write(3, "1000", 4 [pid 843] <... openat resumed>) = 3 [pid 842] <... write resumed>) = 4 [pid 841] <... mount resumed>) = 0 [pid 297] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 843] write(3, "1000", 4 [pid 842] close(3) = 0 [pid 841] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 841] exit_group(0 [pid 297] <... umount2 resumed>) = 0 [pid 843] <... write resumed>) = 4 [pid 842] symlink("/dev/binderfs", "./binderfs" [pid 841] <... exit_group resumed>) = ? [pid 842] <... symlink resumed>) = 0 [pid 843] close(3 [pid 297] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 843] <... close resumed>) = 0 [pid 843] symlink("/dev/binderfs", "./binderfs" [pid 842] write(1, "executing program\n", 18 [pid 841] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=841, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>executing program [pid 843] <... symlink resumed>) = 0 [pid 842] <... write resumed>) = 18 [pid 297] newfstatat(AT_FDCWD, "./132/binderfs2", executing program [pid 843] write(1, "executing program\n", 18 [pid 842] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 843] <... write resumed>) = 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 843] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 842] <... mkdirat resumed>) = 0 [pid 297] umount2("./132/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 842] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 843] <... mkdirat resumed>) = 0 [pid 843] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 842] <... mount resumed>) = 0 [pid 297] openat(AT_FDCWD, "./132/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 842] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... openat resumed>) = 4 [pid 843] <... mount resumed>) = 0 [pid 842] <... openat resumed>) = 3 [pid 297] newfstatat(4, "", [pid 842] exit_group(0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 842] <... exit_group resumed>) = ? [pid 297] getdents64(4, [pid 843] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... restart_syscall resumed>) = 0 [pid 842] +++ exited with 0 +++ [pid 843] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] close(4 [pid 299] <... restart_syscall resumed>) = 0 [pid 843] <... exit_group resumed>) = ? [pid 298] umount2("./136", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 843] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=843, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 299] umount2("./134", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./132/binderfs2" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 297] umount2("./132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./137", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./132/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] unlink("./132/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./136/binderfs2", [pid 297] getdents64(3, [pid 300] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./134/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./136/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 300] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./134/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./137/binderfs2", [pid 299] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./132" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./137/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 297] mkdir("./133", 0777 [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./136/binderfs2" [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 298] <... rmdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] umount2("./136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./136/binderfs", ./strace-static-x86_64: Process 844 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./134/binderfs2" [pid 844] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(4, [pid 844] <... set_robust_list resumed>) = 0 [pid 298] unlink("./136/binderfs" [pid 844] chdir("./133" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 844 [pid 844] <... chdir resumed>) = 0 [pid 300] close(4 [pid 299] umount2("./134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 844] <... prctl resumed>) = 0 [pid 300] rmdir("./137/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 844] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./134/binderfs", [pid 844] <... setpgid resumed>) = 0 [pid 844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 844] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] unlink("./134/binderfs" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 844] write(3, "1000", 4 [pid 300] umount2("./137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3 [pid 844] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 844] close(3 [pid 300] newfstatat(AT_FDCWD, "./137/binderfs", [pid 299] getdents64(3, [pid 298] rmdir("./136" [pid 844] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 844] symlink("/dev/binderfs", "./binderfs" [pid 300] unlink("./137/binderfs" [pid 299] close(3 [pid 298] mkdir("./137", 0777 [pid 844] <... symlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 844] write(1, "executing program\n", 18 [pid 299] rmdir("./134" [pid 300] getdents64(3, executing program [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 844] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 845 attached [pid 844] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] close(3 [pid 299] mkdir("./135", 0777 [pid 300] <... close resumed>) = 0 [pid 845] set_robust_list(0x5555726b0660, 24 [pid 300] rmdir("./137" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 845 [pid 844] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 845] <... set_robust_list resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 844] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] mkdir("./138", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 845] chdir("./137") = 0 [pid 845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 845] setpgid(0, 0./strace-static-x86_64: Process 846 attached ) = 0 [pid 845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 844] <... mount resumed>) = 0 [pid 845] write(3, "1000", 4) = 4 [pid 845] close(3) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 846] set_robust_list(0x5555726b0660, 24 [pid 844] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 846] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 846 [pid 845] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 845] write(1, "executing program\n", 18 [pid 844] <... openat resumed>) = 3 ./strace-static-x86_64: Process 847 attached [pid 846] chdir("./135" [pid 845] <... write resumed>) = 18 [pid 847] set_robust_list(0x5555726b0660, 24 [pid 846] <... chdir resumed>) = 0 [pid 845] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 844] exit_group(0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 847 [pid 846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 844] <... exit_group resumed>) = ? [pid 846] <... prctl resumed>) = 0 [pid 847] <... set_robust_list resumed>) = 0 [pid 845] <... mkdirat resumed>) = 0 [pid 847] chdir("./138") = 0 [pid 847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 844] +++ exited with 0 +++ [pid 845] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 847] <... prctl resumed>) = 0 [pid 847] setpgid(0, 0 [pid 846] setpgid(0, 0 [pid 845] <... mount resumed>) = 0 [pid 846] <... setpgid resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=844, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 847] <... setpgid resumed>) = 0 [pid 847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 847] <... openat resumed>) = 3 [pid 847] write(3, "1000", 4) = 4 [pid 847] close(3 [pid 297] umount2("./133", MNT_FORCE|UMOUNT_NOFOLLOW [pid 847] <... close resumed>) = 0 [pid 847] symlink("/dev/binderfs", "./binderfs" [pid 846] <... openat resumed>) = 3 [pid 845] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 847] <... symlink resumed>) = 0 [pid 845] <... openat resumed>) = 3 [pid 846] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 846] <... write resumed>) = 4 executing program [pid 847] write(1, "executing program\n", 18 [pid 846] close(3 [pid 845] exit_group(0 [pid 297] <... openat resumed>) = 3 [pid 847] <... write resumed>) = 18 [pid 846] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 847] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 846] symlink("/dev/binderfs", "./binderfs" [pid 845] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 847] <... mkdirat resumed>) = 0 [pid 846] <... symlink resumed>) = 0 [pid 845] +++ exited with 0 +++ [pid 297] getdents64(3, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=845, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 847] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 846] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 846] <... write resumed>) = 18 [pid 297] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 847] <... mount resumed>) = 0 [pid 846] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./137", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 847] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] getdents64(3, [pid 847] <... openat resumed>) = 3 [pid 846] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 847] exit_group(0 [pid 846] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 847] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = 0 [pid 847] +++ exited with 0 +++ [pid 846] <... mount resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./133/binderfs2", [pid 298] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=847, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./133/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./137/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 846] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] openat(AT_FDCWD, "./133/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 846] <... openat resumed>) = 3 [pid 298] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 846] exit_group(0 [pid 300] umount2("./138", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 846] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./137/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(4, [pid 846] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=846, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 298] close(4) = 0 [pid 298] rmdir("./137/binderfs2" [pid 300] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./133/binderfs2" [pid 298] umount2("./137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./137/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./137") = 0 [pid 298] mkdir("./138", 0777 [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./133/binderfs", [pid 300] newfstatat(AT_FDCWD, "./138/binderfs2", [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./133/binderfs" [pid 300] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./138/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(4, "", [pid 297] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 300] getdents64(4, ./strace-static-x86_64: Process 848 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 848 [pid 297] rmdir("./133" [pid 848] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 848] <... set_robust_list resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 848] chdir("./138" [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 848] <... chdir resumed>) = 0 [pid 848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] mkdir("./134", 0777 [pid 300] close(4 [pid 848] <... prctl resumed>) = 0 [pid 848] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 848] <... setpgid resumed>) = 0 [pid 848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 848] write(3, "1000", 4) = 4 [pid 848] close(3 [pid 297] <... mkdir resumed>) = 0 [pid 300] rmdir("./138/binderfs2" [pid 848] <... close resumed>) = 0 [pid 848] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 848] write(1, "executing program\n", 18) = 18 [pid 848] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 848] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 848] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 849 attached [pid 300] newfstatat(AT_FDCWD, "./138/binderfs", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 849 [pid 848] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 849] set_robust_list(0x5555726b0660, 24 [pid 848] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] unlink("./138/binderfs" [pid 849] <... set_robust_list resumed>) = 0 [pid 848] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 849] chdir("./134" [pid 299] umount2("./135", MNT_FORCE|UMOUNT_NOFOLLOW [pid 849] <... chdir resumed>) = 0 [pid 848] exit_group(0 [pid 849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 848] <... exit_group resumed>) = ? [pid 849] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] close(3 [pid 299] <... openat resumed>) = 3 [pid 849] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(3, "", [pid 300] rmdir("./138" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 849] <... setpgid resumed>) = 0 [pid 848] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] mkdir("./139", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=848, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 849] write(3, "1000", 4 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 849] <... write resumed>) = 4 [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 849] close(3) = 0 [pid 849] symlink("/dev/binderfs", "./binderfs" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 849] <... symlink resumed>) = 0 [pid 849] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./135/binderfs2", [pid 849] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 849] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 850 attached [pid 299] openat(AT_FDCWD, "./135/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 850] set_robust_list(0x5555726b0660, 24) = 0 [pid 849] <... mkdirat resumed>) = 0 [pid 850] chdir("./139" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 850 [pid 299] <... openat resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 849] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 850] <... chdir resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 850] setpgid(0, 0 [pid 849] <... mount resumed>) = 0 [pid 299] getdents64(4, [pid 298] umount2("./138", MNT_FORCE|UMOUNT_NOFOLLOW [pid 849] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 850] <... setpgid resumed>) = 0 [pid 849] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 849] exit_group(0 [pid 850] <... openat resumed>) = 3 [pid 849] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 850] write(3, "1000", 4 [pid 298] getdents64(3, [pid 850] <... write resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 850] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 850] <... close resumed>) = 0 [pid 299] rmdir("./135/binderfs2" [pid 298] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 850] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 850] write(1, "executing program\n", 18) = 18 executing program [pid 850] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 850] <... mkdirat resumed>) = 0 [pid 850] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 849] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./135/binderfs", [pid 298] newfstatat(AT_FDCWD, "./138/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./135/binderfs" [pid 298] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 850] <... mount resumed>) = 0 [pid 299] getdents64(3, [pid 850] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=849, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(3 [pid 850] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./138/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] rmdir("./135" [pid 298] <... openat resumed>) = 4 [pid 850] exit_group(0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 850] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./138/binderfs2" [pid 850] +++ exited with 0 +++ [pid 299] mkdir("./136", 0777 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... rmdir resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./138/binderfs", ./strace-static-x86_64: Process 851 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 851] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 851 [pid 851] <... set_robust_list resumed>) = 0 [pid 298] unlink("./138/binderfs" [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 851] chdir("./136") = 0 [pid 851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(3, [pid 851] <... prctl resumed>) = 0 [pid 300] umount2("./139", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 851] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 851] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 3 [pid 298] rmdir("./138" [pid 851] <... openat resumed>) = 3 [pid 851] write(3, "1000", 4 [pid 300] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 851] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 851] close(3 [pid 300] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 851] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] mkdir("./139", 0777 [pid 851] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 298] <... mkdir resumed>) = 0 [pid 851] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = 0 [pid 851] <... write resumed>) = 18 [pid 297] umount2("./134", MNT_FORCE|UMOUNT_NOFOLLOW [pid 851] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 851] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 851] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(AT_FDCWD, "./139/binderfs2", [pid 297] <... openat resumed>) = 3 ./strace-static-x86_64: Process 852 attached [pid 851] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 852] set_robust_list(0x5555726b0660, 24 [pid 297] newfstatat(3, "", [pid 852] <... set_robust_list resumed>) = 0 [pid 851] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 852] chdir("./139" [pid 851] <... openat resumed>) = 3 [pid 300] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 852 [pid 297] getdents64(3, [pid 852] <... chdir resumed>) = 0 [pid 851] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 851] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./139/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 852] <... prctl resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 852] setpgid(0, 0 [pid 851] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 852] <... setpgid resumed>) = 0 [pid 300] getdents64(4, [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=851, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] rmdir("./139/binderfs2" [pid 852] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 297] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 852] write(3, "1000", 4 [pid 299] umount2("./136", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 852] <... write resumed>) = 4 [pid 852] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./134/binderfs2", [pid 852] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 852] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] umount2("./134/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 852] <... symlink resumed>) = 0 [pid 300] umount2("./139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 299] newfstatat(3, "", [pid 852] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 852] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./134/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 852] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 300] newfstatat(AT_FDCWD, "./139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./139/binderfs" [pid 852] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 852] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 300] rmdir("./139" [pid 852] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 852] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 300] mkdir("./140", 0777 [pid 299] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 852] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 852] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./136/binderfs2", [pid 297] close(4 [pid 852] <... exit_group resumed>) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 852] +++ exited with 0 +++ [pid 299] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./134/binderfs2"./strace-static-x86_64: Process 853 attached [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./136/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=852, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 853] set_robust_list(0x5555726b0660, 24 [pid 297] <... rmdir resumed>) = 0 [pid 853] <... set_robust_list resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] umount2("./134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 853] chdir("./140" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 853 [pid 299] newfstatat(4, "", [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 853] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./134/binderfs", [pid 853] <... prctl resumed>) = 0 [pid 298] umount2("./139", MNT_FORCE|UMOUNT_NOFOLLOW [pid 853] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 853] <... setpgid resumed>) = 0 [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] unlink("./134/binderfs" [pid 298] newfstatat(3, "", [pid 853] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 853] write(3, "1000", 4 [pid 299] close(4 [pid 298] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 853] <... write resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 853] close(3 [pid 299] rmdir("./136/binderfs2" [pid 297] getdents64(3, [pid 853] <... close resumed>) = 0 [pid 298] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 853] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 853] <... symlink resumed>) = 0 [pid 299] umount2("./136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 853] write(1, "executing program\n", 18 [pid 297] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./134"executing program [pid 298] newfstatat(AT_FDCWD, "./139/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 853] <... write resumed>) = 18 [pid 299] newfstatat(AT_FDCWD, "./136/binderfs", [pid 298] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./135", 0777 [pid 853] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./139/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] unlink("./136/binderfs" [pid 298] newfstatat(4, "", [pid 297] <... mkdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 853] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 853] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] close(3) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./139/binderfs2" [pid 853] <... mount resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 854 attached [pid 853] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] rmdir("./136" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 854 [pid 854] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 854] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 854] chdir("./135" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./139/binderfs", [pid 854] <... chdir resumed>) = 0 [pid 853] <... openat resumed>) = 3 [pid 299] mkdir("./137", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] unlink("./139/binderfs" [pid 854] <... prctl resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 853] exit_group(0 [pid 298] <... unlink resumed>) = 0 [pid 854] setpgid(0, 0 [pid 853] <... exit_group resumed>) = ? [pid 854] <... setpgid resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./139" [pid 853] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=853, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 854] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 855 [pid 854] write(3, "1000", 4./strace-static-x86_64: Process 855 attached ) = 4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 855] set_robust_list(0x5555726b0660, 24 [pid 854] close(3 [pid 298] mkdir("./140", 0777 [pid 855] <... set_robust_list resumed>) = 0 [pid 854] <... close resumed>) = 0 [pid 855] chdir("./137" [pid 854] symlink("/dev/binderfs", "./binderfs" [pid 298] <... mkdir resumed>) = 0 [pid 855] <... chdir resumed>) = 0 [pid 854] <... symlink resumed>) = 0 [pid 855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 854] write(1, "executing program\n", 18executing program [pid 855] <... prctl resumed>) = 0 [pid 854] <... write resumed>) = 18 ./strace-static-x86_64: Process 856 attached [pid 855] setpgid(0, 0 [pid 856] set_robust_list(0x5555726b0660, 24 [pid 855] <... setpgid resumed>) = 0 [pid 854] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 856] <... set_robust_list resumed>) = 0 [pid 855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 856] chdir("./140" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 856 [pid 854] <... mkdirat resumed>) = 0 [pid 856] <... chdir resumed>) = 0 [pid 855] <... openat resumed>) = 3 [pid 856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 854] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 856] <... prctl resumed>) = 0 [pid 855] write(3, "1000", 4 [pid 856] setpgid(0, 0) = 0 [pid 856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 855] <... write resumed>) = 4 [pid 854] <... mount resumed>) = 0 [pid 855] close(3 [pid 854] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 855] <... close resumed>) = 0 [pid 856] <... openat resumed>) = 3 [pid 855] symlink("/dev/binderfs", "./binderfs" [pid 854] <... openat resumed>) = 3 [pid 856] write(3, "1000", 4 [pid 855] <... symlink resumed>) = 0 [pid 856] <... write resumed>) = 4 [pid 855] write(1, "executing program\n", 18 [pid 854] exit_group(0 [pid 856] close(3executing program executing program ) = 0 [pid 855] <... write resumed>) = 18 [pid 854] <... exit_group resumed>) = ? [pid 856] symlink("/dev/binderfs", "./binderfs") = 0 [pid 856] write(1, "executing program\n", 18) = 18 [pid 856] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 855] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 854] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 856] <... mkdirat resumed>) = 0 [pid 855] <... mkdirat resumed>) = 0 [pid 297] umount2("./135", MNT_FORCE|UMOUNT_NOFOLLOW [pid 855] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 856] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(3, "", [pid 856] <... mount resumed>) = 0 [pid 855] <... mount resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 855] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] getdents64(3, [pid 300] umount2("./140", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 856] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 855] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 856] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 856] exit_group(0 [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 856] <... exit_group resumed>) = ? [pid 300] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 856] +++ exited with 0 +++ [pid 855] exit_group(0 [pid 297] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 855] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=856, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(AT_FDCWD, "./135/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./135/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./135/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 300] newfstatat(AT_FDCWD, "./140/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(4, [pid 300] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 300] openat(AT_FDCWD, "./140/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 300] <... openat resumed>) = 4 [pid 298] umount2("./140", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(4 [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] newfstatat(3, "", [pid 297] rmdir("./135/binderfs2" [pid 300] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 300] close(4) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 855] +++ exited with 0 +++ [pid 300] rmdir("./140/binderfs2" [pid 298] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=855, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./135/binderfs", [pid 300] umount2("./140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./135/binderfs" [pid 300] newfstatat(AT_FDCWD, "./140/binderfs", [pid 298] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./140/binderfs" [pid 298] newfstatat(AT_FDCWD, "./140/binderfs2", [pid 297] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 298] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 300] close(3 [pid 298] openat(AT_FDCWD, "./140/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./135" [pid 300] <... close resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 300] rmdir("./140" [pid 298] newfstatat(4, "", [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] mkdir("./136", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... mkdir resumed>) = 0 [pid 300] mkdir("./141", 0777 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] rmdir("./140/binderfs2" [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] umount2("./137", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 857 attached [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 857] set_robust_list(0x5555726b0660, 24 [pid 299] newfstatat(3, "", [pid 857] <... set_robust_list resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 857] chdir("./136" [pid 299] getdents64(3, [pid 857] <... chdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 857] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 858 attached [pid 857] setpgid(0, 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 858 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 857 [pid 858] set_robust_list(0x5555726b0660, 24 [pid 857] <... setpgid resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./140/binderfs", [pid 858] <... set_robust_list resumed>) = 0 [pid 857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 858] chdir("./141" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./140/binderfs" [pid 858] <... chdir resumed>) = 0 [pid 857] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./137/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 858] <... prctl resumed>) = 0 [pid 857] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 858] setpgid(0, 0 [pid 298] close(3 [pid 858] <... setpgid resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] rmdir("./140" [pid 857] <... write resumed>) = 4 [pid 299] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 857] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 857] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./137/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 858] <... openat resumed>) = 3 [pid 857] symlink("/dev/binderfs", "./binderfs" [pid 299] <... openat resumed>) = 4 [pid 298] mkdir("./141", 0777 [pid 858] write(3, "1000", 4 [pid 857] <... symlink resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 858] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 858] close(3executing program [pid 299] getdents64(4, [pid 857] write(1, "executing program\n", 18 [pid 858] <... close resumed>) = 0 [pid 857] <... write resumed>) = 18 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 857] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 858] write(1, "executing program\n", 18 [pid 857] <... mkdirat resumed>) = 0 [pid 299] close(4 [pid 858] <... write resumed>) = 18 ./strace-static-x86_64: Process 859 attached [pid 858] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... close resumed>) = 0 [pid 859] set_robust_list(0x5555726b0660, 24 [pid 299] rmdir("./137/binderfs2" [pid 858] <... mkdirat resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 859 [pid 299] <... rmdir resumed>) = 0 [pid 859] <... set_robust_list resumed>) = 0 [pid 858] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 857] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 859] chdir("./141" [pid 858] <... mount resumed>) = 0 [pid 858] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 857] <... mount resumed>) = 0 [pid 859] <... chdir resumed>) = 0 [pid 299] umount2("./137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 858] exit_group(0) = ? [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 857] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(AT_FDCWD, "./137/binderfs", [pid 859] <... prctl resumed>) = 0 [pid 859] setpgid(0, 0 [pid 858] +++ exited with 0 +++ [pid 857] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 859] <... setpgid resumed>) = 0 [pid 299] unlink("./137/binderfs" [pid 859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 857] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=858, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... unlink resumed>) = 0 [pid 859] <... openat resumed>) = 3 [pid 857] <... exit_group resumed>) = ? [pid 859] write(3, "1000", 4 [pid 857] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(3, [pid 859] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 859] close(3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=857, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(3 [pid 859] <... close resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./137" [pid 297] <... restart_syscall resumed>) = 0 [pid 859] symlink("/dev/binderfs", "./binderfs" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./138", 0777 [pid 859] <... symlink resumed>) = 0 [pid 859] write(1, "executing program\n", 18executing program [pid 300] umount2("./141", MNT_FORCE|UMOUNT_NOFOLLOW [pid 859] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 859] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./136", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 859] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 860 attached [pid 859] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(3, "", [pid 860] set_robust_list(0x5555726b0660, 24 [pid 297] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 860 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 860] <... set_robust_list resumed>) = 0 [pid 859] <... mount resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 860] chdir("./138" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 859] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(3, "", [pid 860] <... chdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] getdents64(3, [pid 860] <... prctl resumed>) = 0 [pid 300] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 860] setpgid(0, 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 860] <... setpgid resumed>) = 0 [pid 859] <... openat resumed>) = 3 [pid 297] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 859] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 859] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./141/binderfs2", [pid 860] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./141/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... umount2 resumed>) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./141/binderfs2") = 0 [pid 300] umount2("./141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 860] write(3, "1000", 4) = 4 [pid 300] unlink("./141/binderfs" [pid 860] close(3 [pid 300] <... unlink resumed>) = 0 [pid 297] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 860] <... close resumed>) = 0 [pid 860] symlink("/dev/binderfs", "./binderfs" [pid 300] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./136/binderfs2", [pid 300] rmdir("./141" [pid 860] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 300] mkdir("./142", 0777 [pid 860] write(1, "executing program\n", 18 [pid 297] umount2("./136/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 859] +++ exited with 0 +++ [pid 297] openat(AT_FDCWD, "./136/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 860] <... write resumed>) = 18 [pid 860] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=859, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(4, "", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 860] <... mkdirat resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 860] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(4, ./strace-static-x86_64: Process 861 attached 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 861 [pid 297] close(4 [pid 861] set_robust_list(0x5555726b0660, 24 [pid 297] <... close resumed>) = 0 [pid 861] <... set_robust_list resumed>) = 0 [pid 297] rmdir("./136/binderfs2" [pid 860] <... mount resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 860] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 861] chdir("./142" [pid 860] <... openat resumed>) = 3 [pid 297] umount2("./136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 861] <... chdir resumed>) = 0 [pid 861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 861] <... prctl resumed>) = 0 [pid 860] exit_group(0) = ? [pid 861] setpgid(0, 0 [pid 297] newfstatat(AT_FDCWD, "./136/binderfs", [pid 861] <... setpgid resumed>) = 0 [pid 861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 861] <... openat resumed>) = 3 [pid 297] unlink("./136/binderfs") = 0 [pid 861] write(3, "1000", 4) = 4 [pid 297] getdents64(3, [pid 860] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./138", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 861] close(3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 861] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] close(3 [pid 861] symlink("/dev/binderfs", "./binderfs" [pid 297] <... close resumed>) = 0 [pid 299] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./136" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./138/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./138/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./137", 0777 [pid 861] <... symlink resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 executing program [pid 861] write(1, "executing program\n", 18 [pid 299] newfstatat(4, "", [pid 297] <... mkdir resumed>) = 0 [pid 861] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 298] umount2("./141", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 861] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 862 attached [pid 298] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 862] set_robust_list(0x5555726b0660, 24 [pid 861] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 862] <... set_robust_list resumed>) = 0 [pid 299] close(4 [pid 861] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 862 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./138/binderfs2" [pid 298] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./141/binderfs2", [pid 861] <... mount resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 862] chdir("./137" [pid 299] umount2("./138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 862] <... chdir resumed>) = 0 [pid 861] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 862] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 861] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./138/binderfs", [pid 862] <... prctl resumed>) = 0 [pid 861] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 862] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 861] <... exit_group resumed>) = ? [pid 862] <... setpgid resumed>) = 0 [pid 299] unlink("./138/binderfs" [pid 298] openat(AT_FDCWD, "./141/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 861] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=861, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 862] write(3, "1000", 4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 862] <... write resumed>) = 4 [pid 299] <... unlink resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 862] close(3 [pid 299] getdents64(3, [pid 862] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 862] symlink("/dev/binderfs", "./binderfs" [pid 299] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 862] <... symlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 862] write(1, "executing program\n", 18 [pid 299] rmdir("./138"executing program [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 862] <... write resumed>) = 18 [pid 298] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 862] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] mkdir("./139", 0777 [pid 298] close(4 [pid 862] <... mkdirat resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./141/binderfs2" [pid 862] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... mkdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 863 attached [pid 298] unlink("./141/binderfs") = 0 [pid 298] getdents64(3, [pid 862] <... mount resumed>) = 0 [pid 863] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 863 [pid 863] chdir("./139" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 863] <... chdir resumed>) = 0 [pid 862] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] close(3 [pid 863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 862] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./141" [pid 863] setpgid(0, 0 [pid 298] <... rmdir resumed>) = 0 [pid 863] <... setpgid resumed>) = 0 [pid 862] exit_group(0 [pid 298] mkdir("./142", 0777 [pid 863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 862] <... exit_group resumed>) = ? [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 864 attached , child_tidptr=0x5555726b0650) = 864 [pid 864] set_robust_list(0x5555726b0660, 24) = 0 [pid 864] chdir("./142") = 0 [pid 862] +++ exited with 0 +++ [pid 864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 863] <... openat resumed>) = 3 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 863] write(3, "1000", 4 [pid 864] setpgid(0, 0) = 0 [pid 863] <... write resumed>) = 4 [pid 864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 864] write(3, "1000", 4) = 4 [pid 864] close(3) = 0 [pid 863] close(3 [pid 864] symlink("/dev/binderfs", "./binderfs" [pid 863] <... close resumed>) = 0 [pid 863] symlink("/dev/binderfs", "./binderfs" [pid 864] <... symlink resumed>) = 0 [pid 863] <... symlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 863] write(1, "executing program\n", 18executing program [pid 864] write(1, "executing program\n", 18) = 18 [pid 864] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 863] <... write resumed>) = 18 [pid 864] <... mkdirat resumed>) = 0 [pid 863] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 864] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 863] <... mkdirat resumed>) = 0 [pid 300] umount2("./142", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 864] <... mount resumed>) = 0 [pid 863] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 863] <... mount resumed>) = 0 [pid 864] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 864] exit_group(0) = ? [pid 300] <... umount2 resumed>) = 0 [pid 863] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 864] +++ exited with 0 +++ [pid 863] <... openat resumed>) = 3 [pid 300] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./142/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./142/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 863] exit_group(0 [pid 300] rmdir("./142/binderfs2" [pid 863] <... exit_group resumed>) = ? [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 863] +++ exited with 0 +++ [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] newfstatat(AT_FDCWD, "./142/binderfs", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=863, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./142/binderfs" [pid 299] umount2("./139", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(3, "", [pid 300] rmdir("./142") = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] mkdir("./143", 0777 [pid 299] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./142", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, ./strace-static-x86_64: Process 865 attached [pid 865] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 865 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 865] chdir("./143") = 0 [pid 865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 865] setpgid(0, 0) = 0 [pid 865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./137", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 865] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./139/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 865] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 865] <... write resumed>) = 4 [pid 865] close(3 [pid 297] <... openat resumed>) = 3 [pid 865] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(3, "", [pid 299] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./139/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 865] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 865] write(1, "executing program\n", 18executing program [pid 299] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./142/binderfs2", [pid 297] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 865] <... write resumed>) = 18 [pid 865] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] getdents64(4, [pid 298] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 865] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./142/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./137/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(4, "", [pid 299] <... close resumed>) = 0 [pid 297] umount2("./137/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 865] <... mount resumed>) = 0 [pid 299] rmdir("./139/binderfs2" [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./137/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 865] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 865] exit_group(0) = ? [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] getdents64(4, [pid 865] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./139/binderfs", [pid 298] rmdir("./142/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=865, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] unlink("./139/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./137/binderfs2" [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./142/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] close(3 [pid 297] umount2("./137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./139" [pid 297] newfstatat(AT_FDCWD, "./137/binderfs", [pid 298] unlink("./142/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] mkdir("./140", 0777 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./137/binderfs" [pid 298] close(3 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] rmdir("./142" [pid 297] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 866 attached [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 866] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 866 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 866] <... set_robust_list resumed>) = 0 [pid 866] chdir("./140" [pid 297] close(3 [pid 298] mkdir("./143", 0777 [pid 866] <... chdir resumed>) = 0 [pid 300] umount2("./143", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./137" [pid 866] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... openat resumed>) = 3 [pid 866] setpgid(0, 0 [pid 300] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 866] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] mkdir("./138", 0777./strace-static-x86_64: Process 867 attached [pid 866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 867] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 867 [pid 867] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 867] chdir("./143" [pid 300] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 867] <... chdir resumed>) = 0 [pid 867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 866] <... openat resumed>) = 3 [pid 867] setpgid(0, 0 [pid 297] <... mkdir resumed>) = 0 [pid 867] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 868 attached [pid 867] <... openat resumed>) = 3 [pid 866] write(3, "1000", 4 [pid 300] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 866] <... write resumed>) = 4 [pid 868] set_robust_list(0x5555726b0660, 24 [pid 866] close(3 [pid 868] <... set_robust_list resumed>) = 0 [pid 866] <... close resumed>) = 0 [pid 867] write(3, "1000", 4 [pid 866] symlink("/dev/binderfs", "./binderfs" [pid 867] <... write resumed>) = 4 [pid 868] chdir("./138" [pid 867] close(3) = 0 [pid 867] symlink("/dev/binderfs", "./binderfs"executing program executing program ) = 0 [pid 866] <... symlink resumed>) = 0 [pid 867] write(1, "executing program\n", 18) = 18 [pid 867] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 868] <... chdir resumed>) = 0 [pid 867] <... mkdirat resumed>) = 0 [pid 866] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 866] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./143/binderfs2", [pid 868] <... prctl resumed>) = 0 [pid 867] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 868 [pid 868] setpgid(0, 0 [pid 867] <... mount resumed>) = 0 [pid 866] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 868] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 867] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./143/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 867] <... openat resumed>) = 3 [pid 867] exit_group(0) = ? [pid 866] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 868] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 868] write(3, "1000", 4 [pid 866] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 868] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 868] close(3 [pid 300] getdents64(4, [pid 868] <... close resumed>) = 0 [pid 868] symlink("/dev/binderfs", "./binderfs" [pid 867] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=867, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 868] <... symlink resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 868] write(1, "executing program\n", 18executing program [pid 300] close(4 [pid 868] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 868] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./143/binderfs2" [pid 866] <... mount resumed>) = 0 [pid 868] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 866] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 868] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 866] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 868] <... mount resumed>) = 0 [pid 868] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 868] exit_group(0) = ? [pid 866] exit_group(0 [pid 300] newfstatat(AT_FDCWD, "./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 866] <... exit_group resumed>) = ? [pid 300] unlink("./143/binderfs") = 0 [pid 868] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(3, [pid 298] umount2("./143", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 866] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 300] close(3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] rmdir("./143" [pid 298] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./143/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./143/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./144", 0777) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./138", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, ./strace-static-x86_64: Process 869 attached [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 869] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 869 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 869] chdir("./144" [pid 298] close(4 [pid 297] <... openat resumed>) = 3 [pid 869] <... chdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 298] rmdir("./143/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 869] setpgid(0, 0) = 0 [pid 869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 869] <... openat resumed>) = 3 [pid 869] write(3, "1000", 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 869] <... write resumed>) = 4 [pid 298] umount2("./143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 869] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 869] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./143/binderfs", [pid 869] symlink("/dev/binderfs", "./binderfs" [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 869] <... symlink resumed>) = 0 [pid 298] unlink("./143/binderfs" [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./140", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 869] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 869] <... write resumed>) = 18 [pid 299] <... openat resumed>) = 3 [pid 869] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(3, "", [pid 298] getdents64(3, [pid 297] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] newfstatat(AT_FDCWD, "./138/binderfs2", [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./143" [pid 297] umount2("./138/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 869] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 869] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 298] mkdir("./144", 0777 [pid 297] openat(AT_FDCWD, "./138/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 869] <... mount resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 869] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(4, "", [pid 869] <... openat resumed>) = 3 [pid 299] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./140/binderfs2", ./strace-static-x86_64: Process 870 attached [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 869] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 869] <... exit_group resumed>) = ? [pid 299] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 870] set_robust_list(0x5555726b0660, 24 [pid 869] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 870] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 870 [pid 297] getdents64(4, [pid 870] chdir("./144" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=869, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] openat(AT_FDCWD, "./140/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 870] <... chdir resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... openat resumed>) = 4 [pid 297] close(4 [pid 870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(4, "", [pid 870] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 870] setpgid(0, 0 [pid 299] getdents64(4, [pid 297] rmdir("./138/binderfs2" [pid 870] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] rmdir("./140/binderfs2" [pid 870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 870] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 870] write(3, "1000", 4 [pid 297] newfstatat(AT_FDCWD, "./138/binderfs", [pid 870] <... write resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 870] close(3 [pid 300] umount2("./144", MNT_FORCE|UMOUNT_NOFOLLOW [pid 870] <... close resumed>) = 0 [pid 297] unlink("./138/binderfs" [pid 870] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] unlink("./140/binderfs") = 0 [pid 870] <... symlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 299] getdents64(3, [pid 300] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 870] write(1, "executing program\n", 18 [pid 300] newfstatat(3, "", [pid 299] close(3 [pid 297] close(3 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./140"executing program [pid 870] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 299] mkdir("./141", 0777 [pid 297] rmdir("./138" [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 870] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 871 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 871 [pid 870] <... mkdirat resumed>) = 0 [pid 871] set_robust_list(0x5555726b0660, 24) = 0 [pid 871] chdir("./141") = 0 [pid 871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 871] setpgid(0, 0 [pid 300] <... umount2 resumed>) = 0 [pid 871] <... setpgid resumed>) = 0 executing program [pid 870] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./139", 0777 [pid 871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 871] write(3, "1000", 4) = 4 [pid 871] close(3) = 0 [pid 871] symlink("/dev/binderfs", "./binderfs" [pid 870] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 871] <... symlink resumed>) = 0 [pid 871] write(1, "executing program\n", 18) = 18 [pid 871] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./144/binderfs2", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 870] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 871] <... mkdirat resumed>) = 0 [pid 871] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 872 attached [pid 871] <... mount resumed>) = 0 [pid 870] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 872 [pid 300] openat(AT_FDCWD, "./144/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 872] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 4 [pid 872] <... set_robust_list resumed>) = 0 [pid 870] exit_group(0 [pid 300] newfstatat(4, "", [pid 872] chdir("./139") = 0 [pid 871] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 870] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 871] <... openat resumed>) = 3 [pid 872] <... prctl resumed>) = 0 [pid 871] exit_group(0 [pid 300] getdents64(4, [pid 872] setpgid(0, 0) = 0 [pid 872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 871] <... exit_group resumed>) = ? [pid 870] +++ exited with 0 +++ [pid 872] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] getdents64(4, [pid 872] write(3, "1000", 4) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 872] close(3 [pid 871] +++ exited with 0 +++ [pid 298] umount2("./144", MNT_FORCE|UMOUNT_NOFOLLOW [pid 872] <... close resumed>) = 0 [pid 300] close(4 [pid 872] symlink("/dev/binderfs", "./binderfs" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=871, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 872] <... symlink resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...>executing program [pid 872] write(1, "executing program\n", 18 [pid 300] rmdir("./144/binderfs2" [pid 298] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 872] <... write resumed>) = 18 [pid 872] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 872] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(3, "", [pid 300] umount2("./144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./144/binderfs", [pid 298] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] unlink("./144/binderfs" [pid 872] <... mount resumed>) = 0 [pid 872] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... unlink resumed>) = 0 [pid 872] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] getdents64(3, [pid 298] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 872] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] umount2("./141", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 298] newfstatat(AT_FDCWD, "./144/binderfs2", [pid 872] <... exit_group resumed>) = ? [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 872] +++ exited with 0 +++ [pid 300] rmdir("./144" [pid 298] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./145", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] openat(AT_FDCWD, "./144/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./141/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./141/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] umount2("./139", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] close(4 [pid 298] close(4 [pid 297] newfstatat(3, "", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./141/binderfs2" [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 873 attached [pid 299] <... rmdir resumed>) = 0 [pid 298] rmdir("./144/binderfs2" [pid 297] getdents64(3, [pid 873] set_robust_list(0x5555726b0660, 24) = 0 [pid 873] chdir("./145" [pid 298] <... rmdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 873 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 873] <... chdir resumed>) = 0 [pid 299] umount2("./141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 873] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./141/binderfs", [pid 873] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 873] <... setpgid resumed>) = 0 [pid 873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] unlink("./141/binderfs" [pid 298] umount2("./144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 873] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./144/binderfs", [pid 873] write(3, "1000", 4 [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 873] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] unlink("./144/binderfs" [pid 297] <... umount2 resumed>) = 0 [pid 873] close(3 [pid 299] close(3 [pid 873] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./139/binderfs2", [pid 298] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 297] umount2("./139/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./144" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 873] symlink("/dev/binderfs", "./binderfs" [pid 299] rmdir("./141"executing program [pid 873] <... symlink resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./139/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 873] write(1, "executing program\n", 18 [pid 299] mkdir("./142", 0777 [pid 873] <... write resumed>) = 18 [pid 299] <... mkdir resumed>) = 0 [pid 298] mkdir("./145", 0777 [pid 297] <... openat resumed>) = 4 [pid 873] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(4, "", [pid 873] <... mkdirat resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, ./strace-static-x86_64: Process 874 attached [pid 873] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 874] set_robust_list(0x5555726b0660, 24 [pid 873] <... mount resumed>) = 0 [pid 297] close(4./strace-static-x86_64: Process 875 attached [pid 875] set_robust_list(0x5555726b0660, 24 [pid 874] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 875 [pid 297] <... close resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 874 [pid 875] <... set_robust_list resumed>) = 0 [pid 874] chdir("./142" [pid 297] rmdir("./139/binderfs2" [pid 875] chdir("./145" [pid 874] <... chdir resumed>) = 0 [pid 873] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 875] <... chdir resumed>) = 0 [pid 873] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 875] setpgid(0, 0 [pid 874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 874] <... prctl resumed>) = 0 [pid 875] <... setpgid resumed>) = 0 [pid 873] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 874] setpgid(0, 0 [pid 873] <... exit_group resumed>) = ? [pid 297] newfstatat(AT_FDCWD, "./139/binderfs", [pid 875] <... openat resumed>) = 3 [pid 874] <... setpgid resumed>) = 0 [pid 873] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=873, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] unlink("./139/binderfs" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 875] write(3, "1000", 4 [pid 874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... unlink resumed>) = 0 [pid 875] <... write resumed>) = 4 [pid 875] close(3) = 0 [pid 875] symlink("/dev/binderfs", "./binderfs" [pid 874] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 874] write(3, "1000", 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 874] <... write resumed>) = 4 [pid 297] close(3executing program [pid 874] close(3 [pid 297] <... close resumed>) = 0 [pid 874] <... close resumed>) = 0 [pid 297] rmdir("./139" [pid 875] <... symlink resumed>) = 0 [pid 874] symlink("/dev/binderfs", "./binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 875] write(1, "executing program\n", 18 [pid 300] <... restart_syscall resumed>) = 0 [pid 875] <... write resumed>) = 18 [pid 875] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 874] <... symlink resumed>) = 0 [pid 297] mkdir("./140", 0777 [pid 875] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 297] <... mkdir resumed>) = 0 [pid 874] write(1, "executing program\n", 18 [pid 300] umount2("./145", MNT_FORCE|UMOUNT_NOFOLLOW [pid 875] <... mount resumed>) = 0 [pid 874] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 875] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 875] <... openat resumed>) = 3 [pid 875] exit_group(0) = ? ./strace-static-x86_64: Process 876 attached [pid 875] +++ exited with 0 +++ [pid 874] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(3, "", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 876 [pid 876] set_robust_list(0x5555726b0660, 24) = 0 [pid 874] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=875, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 876] chdir("./140" [pid 300] getdents64(3, [pid 876] <... chdir resumed>) = 0 [pid 876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 876] setpgid(0, 0) = 0 [pid 876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 874] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 876] <... openat resumed>) = 3 [pid 876] write(3, "1000", 4) = 4 [pid 876] close(3) = 0 [pid 876] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = 0 [pid 876] <... symlink resumed>) = 0 [pid 876] write(1, "executing program\n", 18) = 18 [pid 876] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 874] <... mount resumed>) = 0 executing program [pid 300] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 874] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 876] <... mkdirat resumed>) = 0 [pid 874] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./145/binderfs2", [pid 876] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 876] <... mount resumed>) = 0 [pid 874] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./145/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./145", MNT_FORCE|UMOUNT_NOFOLLOW [pid 876] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 874] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 876] <... openat resumed>) = 3 [pid 876] exit_group(0) = ? [pid 874] +++ exited with 0 +++ [pid 876] +++ exited with 0 +++ [pid 300] newfstatat(4, "", [pid 298] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] close(4 [pid 299] umount2("./142", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = 0 [pid 300] rmdir("./145/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./140", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./145/binderfs2", [pid 297] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./145/binderfs", [pid 299] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] unlink("./145/binderfs" [pid 299] newfstatat(AT_FDCWD, "./142/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./145/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./142/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 300] close(3) = 0 [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] rmdir("./145" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] close(4 [pid 297] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./142/binderfs2" [pid 298] rmdir("./145/binderfs2" [pid 300] mkdir("./146", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./140/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./140/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./145/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./140/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./142/binderfs", [pid 298] unlink("./145/binderfs" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] <... unlink resumed>) = 0 [pid 299] unlink("./142/binderfs" [pid 298] getdents64(3, [pid 297] newfstatat(4, "", ./strace-static-x86_64: Process 877 attached [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 877] set_robust_list(0x5555726b0660, 24 [pid 299] <... unlink resumed>) = 0 [pid 877] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 877 [pid 299] getdents64(3, [pid 298] close(3 [pid 297] getdents64(4, [pid 877] chdir("./146" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 877] <... chdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(3 [pid 298] rmdir("./145" [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] rmdir("./142" [pid 297] <... close resumed>) = 0 [pid 877] <... prctl resumed>) = 0 [pid 877] setpgid(0, 0 [pid 297] rmdir("./140/binderfs2" [pid 877] <... setpgid resumed>) = 0 [pid 877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 877] write(3, "1000", 4) = 4 [pid 877] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 877] <... close resumed>) = 0 [pid 877] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] mkdir("./143", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 877] write(1, "executing program\n", 18 [pid 298] mkdir("./146", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 877] <... write resumed>) = 18 [pid 298] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./140/binderfs", [pid 299] <... mkdir resumed>) = 0 [pid 877] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 877] <... mkdirat resumed>) = 0 [pid 877] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 878 attached ) = 0 ./strace-static-x86_64: Process 879 attached [pid 878] set_robust_list(0x5555726b0660, 24 [pid 877] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] unlink("./140/binderfs" [pid 879] set_robust_list(0x5555726b0660, 24 [pid 878] <... set_robust_list resumed>) = 0 [pid 877] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 878 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 879 [pid 297] <... unlink resumed>) = 0 [pid 877] exit_group(0 [pid 297] getdents64(3, [pid 878] chdir("./143" [pid 879] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 877] <... exit_group resumed>) = ? [pid 297] close(3 [pid 879] chdir("./146" [pid 878] <... chdir resumed>) = 0 [pid 877] +++ exited with 0 +++ [pid 297] <... close resumed>) = 0 [pid 878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=877, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] rmdir("./140" [pid 878] <... prctl resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 879] <... chdir resumed>) = 0 [pid 879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 878] setpgid(0, 0 [pid 297] <... rmdir resumed>) = 0 [pid 878] <... setpgid resumed>) = 0 [pid 878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 879] <... prctl resumed>) = 0 [pid 879] setpgid(0, 0 [pid 297] mkdir("./141", 0777 [pid 879] <... setpgid resumed>) = 0 [pid 879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 878] <... openat resumed>) = 3 [pid 878] write(3, "1000", 4) = 4 [pid 878] close(3executing program ) = 0 [pid 878] symlink("/dev/binderfs", "./binderfs") = 0 [pid 878] write(1, "executing program\n", 18) = 18 [pid 878] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 879] <... openat resumed>) = 3 [pid 879] write(3, "1000", 4 [pid 878] <... mkdirat resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 878] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 879] <... write resumed>) = 4 [pid 879] close(3./strace-static-x86_64: Process 880 attached [pid 880] set_robust_list(0x5555726b0660, 24 [pid 879] <... close resumed>) = 0 [pid 878] <... mount resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 880 [pid 879] symlink("/dev/binderfs", "./binderfs" [pid 880] <... set_robust_list resumed>) = 0 [pid 878] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 880] chdir("./141"executing program [pid 879] <... symlink resumed>) = 0 [pid 880] <... chdir resumed>) = 0 [pid 879] write(1, "executing program\n", 18 [pid 878] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 879] <... write resumed>) = 18 [pid 880] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 879] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 878] exit_group(0 [pid 880] <... prctl resumed>) = 0 [pid 880] setpgid(0, 0 [pid 878] <... exit_group resumed>) = ? [pid 880] <... setpgid resumed>) = 0 [pid 879] <... mkdirat resumed>) = 0 [pid 878] +++ exited with 0 +++ [pid 300] umount2("./146", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 879] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 3 [pid 880] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 880] write(3, "1000", 4) = 4 [pid 880] close(3) = 0 [pid 880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 880] write(1, "executing program\n", 18 executing program [pid 879] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 880] <... write resumed>) = 18 [pid 880] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, [pid 879] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 880] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 880] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 880] <... mount resumed>) = 0 [pid 879] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 880] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./146/binderfs2", [pid 879] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 880] exit_group(0) = ? [pid 879] <... exit_group resumed>) = ? [pid 300] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 880] +++ exited with 0 +++ [pid 879] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./143", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./146/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=879, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(4, "", [pid 299] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(3, "", [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] getdents64(3, [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] rmdir("./146/binderfs2" [pid 299] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] umount2("./146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./146/binderfs", [pid 299] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./146/binderfs") = 0 [pid 299] newfstatat(AT_FDCWD, "./143/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] openat(AT_FDCWD, "./143/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] rmdir("./146" [pid 299] newfstatat(4, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] umount2("./141", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] mkdir("./147", 0777 [pid 299] getdents64(4, [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(4) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] rmdir("./143/binderfs2" [pid 297] newfstatat(3, "", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 881 attached [pid 297] getdents64(3, [pid 299] umount2("./143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 881 [pid 299] unlink("./143/binderfs" [pid 881] set_robust_list(0x5555726b0660, 24 [pid 297] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 881] <... set_robust_list resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 881] chdir("./147" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./143" [pid 297] <... umount2 resumed>) = 0 [pid 881] <... chdir resumed>) = 0 [pid 881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 881] <... prctl resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./144", 0777 [pid 881] setpgid(0, 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 881] <... setpgid resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./141/binderfs2", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./141/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./141/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 881] <... openat resumed>) = 3 [pid 881] write(3, "1000", 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 882 [pid 297] newfstatat(4, "", [pid 881] <... write resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 882 attached [pid 881] close(3 [pid 298] umount2("./146", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 881] <... close resumed>) = 0 [pid 882] set_robust_list(0x5555726b0660, 24) = 0 [pid 881] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 882] chdir("./144" [pid 881] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] getdents64(4, [pid 881] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 297] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 882] <... chdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(3, executing program [pid 297] rmdir("./141/binderfs2" [pid 882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 881] <... write resumed>) = 18 [pid 881] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 882] <... prctl resumed>) = 0 [pid 881] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 882] setpgid(0, 0 [pid 881] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 882] <... setpgid resumed>) = 0 [pid 297] umount2("./141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 882] <... openat resumed>) = 3 [pid 882] write(3, "1000", 4) = 4 [pid 882] close(3 [pid 881] <... mount resumed>) = 0 [pid 298] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./141/binderfs", [pid 881] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 882] <... close resumed>) = 0 [pid 881] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./146/binderfs2", [pid 297] unlink("./141/binderfs" [pid 882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 882] write(1, "executing program\n", 18 [pid 297] <... unlink resumed>) = 0 [pid 882] <... write resumed>) = 18 [pid 881] exit_group(0 [pid 298] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 882] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 882] <... mkdirat resumed>) = 0 [pid 881] <... exit_group resumed>) = ? [pid 297] getdents64(3, [pid 882] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 881] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./146/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./141" [pid 882] <... mount resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 4 [pid 882] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 882] exit_group(0) = ? [pid 298] newfstatat(4, "", [pid 297] mkdir("./142", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 882] +++ exited with 0 +++ [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] umount2("./147", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] close(4 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] rmdir("./146/binderfs2" [pid 300] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./147/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 883 attached [pid 883] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 883] <... set_robust_list resumed>) = 0 [pid 883] chdir("./142" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 883 [pid 300] openat(AT_FDCWD, "./147/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(AT_FDCWD, "./146/binderfs", [pid 883] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(4, "", [pid 883] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 883] setpgid(0, 0 [pid 300] getdents64(4, [pid 299] umount2("./144", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./146/binderfs" [pid 883] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... unlink resumed>) = 0 [pid 883] <... openat resumed>) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 883] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 883] <... write resumed>) = 4 [pid 300] rmdir("./147/binderfs2" [pid 883] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 883] <... close resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(3 [pid 299] getdents64(3, [pid 883] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 883] <... symlink resumed>) = 0 executing program [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] rmdir("./146" [pid 883] write(1, "executing program\n", 18 [pid 300] newfstatat(AT_FDCWD, "./147/binderfs", [pid 883] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 883] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] unlink("./147/binderfs" [pid 883] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 883] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./147", 0777 [pid 299] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3) = 0 [pid 300] rmdir("./147" [pid 298] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./144/binderfs2", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 883] <... mount resumed>) = 0 [pid 300] mkdir("./148", 0777 [pid 299] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 884 attached ) = -1 EINVAL (Invalid argument) [pid 884] set_robust_list(0x5555726b0660, 24 [pid 883] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 884] <... set_robust_list resumed>) = 0 [pid 299] openat(AT_FDCWD, "./144/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 883] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... openat resumed>) = 4 [pid 884] chdir("./147" [pid 883] <... exit_group resumed>) = ? [pid 299] newfstatat(4, "", [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 884 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, ./strace-static-x86_64: Process 885 attached [pid 884] <... chdir resumed>) = 0 [pid 883] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 885] set_robust_list(0x5555726b0660, 24 [pid 884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(4, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=883, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 885] <... set_robust_list resumed>) = 0 [pid 884] <... prctl resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 885 [pid 884] setpgid(0, 0 [pid 299] close(4 [pid 884] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 885] chdir("./148") = 0 [pid 885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 885] setpgid(0, 0) = 0 [pid 885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 885] write(3, "1000", 4) = 4 executing program [pid 884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] rmdir("./144/binderfs2" [pid 885] close(3) = 0 [pid 885] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 885] write(1, "executing program\n", 18) = 18 [pid 884] <... openat resumed>) = 3 [pid 885] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 884] write(3, "1000", 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 884] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 884] close(3 [pid 299] newfstatat(AT_FDCWD, "./144/binderfs", [pid 885] <... mkdirat resumed>) = 0 [pid 884] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./142", MNT_FORCE|UMOUNT_NOFOLLOW [pid 885] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 884] symlink("/dev/binderfs", "./binderfs" [pid 299] unlink("./144/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 885] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... unlink resumed>) = 0 [pid 885] exit_group(0 [pid 297] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 885] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 884] <... symlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 executing program [pid 884] write(1, "executing program\n", 18 [pid 299] rmdir("./144" [pid 884] <... write resumed>) = 18 [pid 885] +++ exited with 0 +++ [pid 884] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=885, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 884] <... mkdirat resumed>) = 0 [pid 299] mkdir("./145", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./142/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./142/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./142/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 884] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] close(4) = 0 [pid 297] rmdir("./142/binderfs2") = 0 [pid 297] umount2("./142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./142/binderfs" [pid 884] <... mount resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] rmdir("./142") = 0 [pid 297] mkdir("./143", 0777./strace-static-x86_64: Process 886 attached [pid 884] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 886 [pid 297] <... mkdir resumed>) = 0 [pid 886] set_robust_list(0x5555726b0660, 24) = 0 [pid 884] <... openat resumed>) = 3 [pid 886] chdir("./145") = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 886] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 884] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 887 attached [pid 884] <... exit_group resumed>) = ? [pid 886] <... prctl resumed>) = 0 [pid 886] setpgid(0, 0 [pid 887] set_robust_list(0x5555726b0660, 24 [pid 886] <... setpgid resumed>) = 0 [pid 886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 887 [pid 886] <... openat resumed>) = 3 [pid 886] write(3, "1000", 4) = 4 [pid 886] close(3) = 0 [pid 886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 886] write(1, "executing program\n", 18) = 18 [pid 886] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 884] +++ exited with 0 +++ [pid 300] umount2("./148", MNT_FORCE|UMOUNT_NOFOLLOW [pid 887] <... set_robust_list resumed>) = 0 [pid 887] chdir("./143" [pid 886] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 886] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 887] <... chdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 887] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 887] setpgid(0, 0 [pid 886] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 887] <... setpgid resumed>) = 0 [pid 886] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 886] <... openat resumed>) = 3 [pid 886] exit_group(0) = ? [pid 886] +++ exited with 0 +++ [pid 887] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=886, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... umount2 resumed>) = 0 [pid 887] write(3, "1000", 4 [pid 300] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 887] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 887] close(3) = 0 [pid 887] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] newfstatat(AT_FDCWD, "./148/binderfs2", [pid 887] write(1, "executing program\n", 18) = 18 executing program [pid 887] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 887] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./148/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 887] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 887] <... mount resumed>) = 0 [pid 300] rmdir("./148/binderfs2" [pid 887] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 887] exit_group(0 [pid 300] <... rmdir resumed>) = 0 [pid 887] <... exit_group resumed>) = ? [pid 300] umount2("./148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./148/binderfs", [pid 298] <... restart_syscall resumed>) = 0 [pid 887] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] unlink("./148/binderfs" [pid 298] umount2("./147", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=887, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./145", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", [pid 300] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(3 [pid 298] getdents64(3, [pid 299] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./143", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./148" [pid 298] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./145/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./145/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 297] newfstatat(3, "", [pid 299] rmdir("./145/binderfs2") = 0 [pid 299] umount2("./145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 300] mkdir("./149", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./145/binderfs", [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./145/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./145") = 0 [pid 299] mkdir("./146", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 888 attached [pid 298] newfstatat(AT_FDCWD, "./147/binderfs2", ./strace-static-x86_64: Process 889 attached [pid 888] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 889 [pid 889] set_robust_list(0x5555726b0660, 24 [pid 888] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 889] <... set_robust_list resumed>) = 0 [pid 888] chdir("./149" [pid 298] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 888 [pid 889] chdir("./146" [pid 888] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 889] <... chdir resumed>) = 0 [pid 888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 889] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 888] <... prctl resumed>) = 0 [pid 889] <... prctl resumed>) = 0 [pid 888] setpgid(0, 0 [pid 298] openat(AT_FDCWD, "./147/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./143/binderfs2", [pid 889] setpgid(0, 0 [pid 888] <... setpgid resumed>) = 0 [pid 889] <... setpgid resumed>) = 0 [pid 888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] umount2("./143/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./143/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 889] <... openat resumed>) = 3 [pid 888] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 4 [pid 889] write(3, "1000", 4 [pid 888] write(3, "1000", 4 [pid 298] getdents64(4, [pid 297] newfstatat(4, "", [pid 889] <... write resumed>) = 4 [pid 888] <... write resumed>) = 4 [pid 889] close(3 [pid 888] close(3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 889] <... close resumed>) = 0 [pid 888] <... close resumed>) = 0 [pid 298] close(4 [pid 889] symlink("/dev/binderfs", "./binderfs" [pid 888] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(4, [pid 889] <... symlink resumed>) = 0 [pid 888] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 889] write(1, "executing program\n", 18 [pid 298] rmdir("./147/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 889] <... write resumed>) = 18 [pid 888] write(1, "executing program\n", 18 [pid 889] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 888] <... write resumed>) = 18 executing program executing program [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, [pid 889] <... mkdirat resumed>) = 0 [pid 888] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 888] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 889] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... close resumed>) = 0 [pid 889] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./147/binderfs", [pid 297] rmdir("./143/binderfs2" [pid 888] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] unlink("./147/binderfs") = 0 [pid 297] umount2("./143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 889] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 889] exit_group(0 [pid 888] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./143/binderfs", [pid 298] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... close resumed>) = 0 [pid 297] unlink("./143/binderfs" [pid 298] rmdir("./147" [pid 889] <... exit_group resumed>) = ? [pid 888] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 889] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 888] <... openat resumed>) = 3 [pid 888] exit_group(0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=889, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] mkdir("./148", 0777 [pid 297] getdents64(3, [pid 888] <... exit_group resumed>) = ? [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 888] +++ exited with 0 +++ [pid 298] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] rmdir("./143" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 890 attached [pid 297] mkdir("./144", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 890 [pid 299] <... restart_syscall resumed>) = 0 [pid 890] set_robust_list(0x5555726b0660, 24 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./146", MNT_FORCE|UMOUNT_NOFOLLOW [pid 890] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 890] chdir("./148" [pid 299] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 890] <... chdir resumed>) = 0 [pid 890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./149", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 890] <... prctl resumed>) = 0 [pid 299] newfstatat(3, "", [pid 890] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 890] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... openat resumed>) = 3 [pid 890] <... openat resumed>) = 3 [pid 299] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 890] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = 0 [pid 890] <... write resumed>) = 4 [pid 890] close(3) = 0 [pid 890] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 891 attached [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 890] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 891] set_robust_list(0x5555726b0660, 24 [pid 890] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(AT_FDCWD, "./146/binderfs2", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 891 [pid 891] <... set_robust_list resumed>) = 0 [pid 890] <... write resumed>) = 18 [pid 300] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 890] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 891] chdir("./144" [pid 890] <... mkdirat resumed>) = 0 [pid 300] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./146/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 891] <... chdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 891] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./149/binderfs2", [pid 891] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 891] setpgid(0, 0 [pid 300] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 891] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 890] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./149/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 4 [pid 890] <... mount resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 890] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] close(4 [pid 890] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 891] <... openat resumed>) = 3 [pid 300] newfstatat(4, "", [pid 891] write(3, "1000", 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 891] <... write resumed>) = 4 [pid 300] getdents64(4, [pid 891] close(3) = 0 [pid 890] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./146/binderfs2" [pid 891] symlink("/dev/binderfs", "./binderfs" [pid 890] <... exit_group resumed>) = ? [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 executing program [pid 891] <... symlink resumed>) = 0 [pid 890] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 891] write(1, "executing program\n", 18 [pid 300] close(4 [pid 891] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 891] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./149/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./146/binderfs", [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] unlink("./146/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./146" [pid 891] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./147", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 891] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 298] umount2("./148", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 891] <... mount resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./149/binderfs", [pid 298] <... openat resumed>) = 3 ./strace-static-x86_64: Process 892 attached [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 892 [pid 298] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 892] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 892] chdir("./147" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./149/binderfs" [pid 892] <... chdir resumed>) = 0 [pid 891] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(AT_FDCWD, "./148/binderfs2", [pid 892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 892] <... prctl resumed>) = 0 [pid 891] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 298] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 892] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 892] <... setpgid resumed>) = 0 [pid 300] close(3 [pid 298] openat(AT_FDCWD, "./148/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./148/binderfs2" [pid 891] exit_group(0 [pid 892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 891] <... exit_group resumed>) = ? [pid 300] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./148/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./148" [pid 891] +++ exited with 0 +++ [pid 300] rmdir("./149" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=891, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./149", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 892] <... openat resumed>) = 3 [pid 300] mkdir("./150", 0777 [pid 297] umount2("./144", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 892] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 892] <... write resumed>) = 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(3, "", [pid 892] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 892] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 892] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 893 attached ) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 893 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 892] write(1, "executing program\n", 18 [pid 297] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 892] <... write resumed>) = 18 executing program [pid 893] set_robust_list(0x5555726b0660, 24 [pid 892] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 893] <... set_robust_list resumed>) = 0 [pid 893] chdir("./149") = 0 [pid 893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 893] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 894 attached [pid 893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 894] set_robust_list(0x5555726b0660, 24) = 0 [pid 894] chdir("./150" [pid 893] <... openat resumed>) = 3 [pid 892] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 894] <... chdir resumed>) = 0 [pid 893] write(3, "1000", 4 [pid 894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 893] <... write resumed>) = 4 [pid 894] <... prctl resumed>) = 0 [pid 893] close(3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 894 [pid 894] setpgid(0, 0 [pid 893] <... close resumed>) = 0 [pid 894] <... setpgid resumed>) = 0 [pid 297] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 892] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 893] symlink("/dev/binderfs", "./binderfs" [pid 894] <... openat resumed>) = 3 [pid 893] <... symlink resumed>) = 0 [pid 892] <... mount resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./144/binderfs2", executing program [pid 893] write(1, "executing program\n", 18 [pid 894] write(3, "1000", 4) = 4 [pid 893] <... write resumed>) = 18 [pid 894] close(3 [pid 893] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 894] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 892] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./144/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 894] symlink("/dev/binderfs", "./binderfs" [pid 893] <... mkdirat resumed>) = 0 [pid 892] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 894] <... symlink resumed>) = 0 [pid 894] write(1, "executing program\n", 18executing program [pid 297] openat(AT_FDCWD, "./144/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 894] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 4 [pid 894] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 892] exit_group(0 [pid 297] newfstatat(4, "", [pid 894] <... mkdirat resumed>) = 0 [pid 893] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 892] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 893] <... mount resumed>) = 0 [pid 892] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(4, [pid 299] umount2("./147", MNT_FORCE|UMOUNT_NOFOLLOW [pid 894] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 894] <... mount resumed>) = 0 [pid 299] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 893] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] close(4 [pid 893] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] rmdir("./144/binderfs2" [pid 893] exit_group(0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 893] <... exit_group resumed>) = ? [pid 299] getdents64(3, [pid 894] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 893] +++ exited with 0 +++ [pid 297] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=893, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 894] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 894] exit_group(0 [pid 297] newfstatat(AT_FDCWD, "./144/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./147/binderfs2", [pid 894] <... exit_group resumed>) = ? [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./147/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./149", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 894] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./144/binderfs" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] close(4 [pid 297] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./150", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./147/binderfs2" [pid 297] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./144" [pid 298] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./149/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./147/binderfs", [pid 298] openat(AT_FDCWD, "./149/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] unlink("./147/binderfs" [pid 298] newfstatat(4, "", [pid 299] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 297] mkdir("./145", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] rmdir("./147" [pid 298] close(4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./149/binderfs2" [pid 299] mkdir("./148", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] umount2("./149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./149/binderfs", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./149/binderfs"./strace-static-x86_64: Process 895 attached [pid 300] newfstatat(AT_FDCWD, "./150/binderfs2", [pid 895] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 895 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./149") = 0 [pid 298] mkdir("./150", 0777 [pid 300] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 895] <... set_robust_list resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 896 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 896 attached [pid 895] chdir("./148" [pid 300] openat(AT_FDCWD, "./150/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 896] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 896] chdir("./145" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 896] <... chdir resumed>) = 0 [pid 895] <... chdir resumed>) = 0 [pid 300] getdents64(4, ./strace-static-x86_64: Process 897 attached [pid 895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 895] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 897] set_robust_list(0x5555726b0660, 24 [pid 895] setpgid(0, 0 [pid 300] getdents64(4, [pid 897] <... set_robust_list resumed>) = 0 [pid 895] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 896] <... prctl resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 897 [pid 896] setpgid(0, 0 [pid 895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] close(4 [pid 897] chdir("./150" [pid 896] <... setpgid resumed>) = 0 [pid 896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... close resumed>) = 0 [pid 896] <... openat resumed>) = 3 [pid 895] <... openat resumed>) = 3 [pid 897] <... chdir resumed>) = 0 [pid 896] write(3, "1000", 4 [pid 300] rmdir("./150/binderfs2" [pid 897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 896] <... write resumed>) = 4 [pid 895] write(3, "1000", 4 [pid 896] close(3) = 0 [pid 896] symlink("/dev/binderfs", "./binderfs" [pid 897] <... prctl resumed>) = 0 [pid 896] <... symlink resumed>) = 0 [pid 895] <... write resumed>) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 897] setpgid(0, 0 [pid 896] write(1, "executing program\n", 18executing program [pid 895] close(3 [pid 896] <... write resumed>) = 18 [pid 896] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 895] <... close resumed>) = 0 [pid 897] <... setpgid resumed>) = 0 [pid 895] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 896] <... mkdirat resumed>) = 0 [pid 896] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 895] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./150/binderfs", [pid 895] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 895] <... write resumed>) = 18 [pid 300] unlink("./150/binderfs" [pid 897] <... openat resumed>) = 3 [pid 896] <... mount resumed>) = 0 [pid 895] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 897] write(3, "1000", 4) = 4 [pid 897] close(3 [pid 896] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 896] exit_group(0) = ? [pid 895] <... mkdirat resumed>) = 0 [pid 897] <... close resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 897] symlink("/dev/binderfs", "./binderfs" [pid 300] <... close resumed>) = 0 [pid 897] <... symlink resumed>) = 0 [pid 300] rmdir("./150" [pid 896] +++ exited with 0 +++ [pid 895] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... rmdir resumed>) = 0 [pid 897] write(1, "executing program\n", 18executing program ) = 18 [pid 300] mkdir("./151", 0777 [pid 897] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 895] <... mount resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 895] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 897] <... mkdirat resumed>) = 0 [pid 895] exit_group(0) = ? [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 897] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 898 ./strace-static-x86_64: Process 898 attached [pid 895] +++ exited with 0 +++ [pid 898] set_robust_list(0x5555726b0660, 24 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=895, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 898] <... set_robust_list resumed>) = 0 [pid 898] chdir("./151") = 0 [pid 898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 897] <... mount resumed>) = 0 [pid 898] setpgid(0, 0) = 0 [pid 898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... restart_syscall resumed>) = 0 [pid 898] <... openat resumed>) = 3 [pid 898] write(3, "1000", 4) = 4 [pid 898] close(3) = 0 [pid 898] symlink("/dev/binderfs", "./binderfs" [pid 897] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 898] <... symlink resumed>) = 0 executing program [pid 898] write(1, "executing program\n", 18) = 18 [pid 898] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 897] <... openat resumed>) = 3 [pid 297] umount2("./145", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 898] <... mkdirat resumed>) = 0 [pid 898] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 897] exit_group(0 [pid 297] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 898] <... mount resumed>) = 0 [pid 897] <... exit_group resumed>) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 898] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] getdents64(3, [pid 898] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 898] exit_group(0 [pid 297] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 898] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = 0 [pid 897] +++ exited with 0 +++ [pid 297] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=897, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(AT_FDCWD, "./145/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./145/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 898] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] openat(AT_FDCWD, "./145/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./145/binderfs2") = 0 [pid 297] umount2("./145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./145/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./145" [pid 299] umount2("./148", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./151", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./146", 0777 [pid 300] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(3, "", [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./148/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./148/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] getdents64(3, [pid 299] newfstatat(4, "", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./148/binderfs2" [pid 300] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 899 attached [pid 299] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 899] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = 0 [pid 899] <... set_robust_list resumed>) = 0 [pid 899] chdir("./146" [pid 299] umount2("./148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 899 [pid 298] umount2("./150", MNT_FORCE|UMOUNT_NOFOLLOW [pid 899] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./148/binderfs", [pid 298] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 899] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./151/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 899] setpgid(0, 0 [pid 299] unlink("./148/binderfs" [pid 298] <... openat resumed>) = 3 [pid 899] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(3, "", [pid 899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 899] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./151/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 899] write(3, "1000", 4 [pid 300] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 899] <... write resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] close(3 [pid 899] close(3 [pid 299] <... close resumed>) = 0 [pid 899] <... close resumed>) = 0 [pid 299] rmdir("./148" [pid 899] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 899] <... symlink resumed>) = 0 executing program [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 899] write(1, "executing program\n", 18 [pid 300] getdents64(4, [pid 299] mkdir("./149", 0777 [pid 899] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = 0 [pid 899] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 899] <... mkdirat resumed>) = 0 [pid 298] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./150/binderfs2", [pid 300] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... close resumed>) = 0 [pid 298] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./151/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 899] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./150/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 900 attached [pid 298] newfstatat(4, "", [pid 900] set_robust_list(0x5555726b0660, 24 [pid 899] <... mount resumed>) = 0 [pid 300] umount2("./151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 900] <... set_robust_list resumed>) = 0 [pid 899] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 900 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 899] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./151/binderfs", [pid 298] getdents64(4, [pid 900] chdir("./149" [pid 899] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 899] <... exit_group resumed>) = ? [pid 300] unlink("./151/binderfs" [pid 298] getdents64(4, [pid 900] <... chdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] close(4 [pid 300] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] rmdir("./150/binderfs2" [pid 300] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 899] +++ exited with 0 +++ [pid 900] <... prctl resumed>) = 0 [pid 900] setpgid(0, 0) = 0 [pid 300] rmdir("./151" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 900] <... openat resumed>) = 3 [pid 900] write(3, "1000", 4 [pid 298] umount2("./150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 900] <... write resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 900] close(3 [pid 300] mkdir("./152", 0777 [pid 298] newfstatat(AT_FDCWD, "./150/binderfs", [pid 900] <... close resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 900] symlink("/dev/binderfs", "./binderfs" [pid 298] unlink("./150/binderfs" [pid 297] umount2("./146", MNT_FORCE|UMOUNT_NOFOLLOW [pid 900] <... symlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 901 attached executing program [pid 900] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 297] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 900] <... write resumed>) = 18 [pid 901] set_robust_list(0x5555726b0660, 24 [pid 297] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(3, "", [pid 298] close(3 [pid 901] <... set_robust_list resumed>) = 0 [pid 900] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 901] chdir("./152" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 901 [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./150" [pid 297] getdents64(3, [pid 901] <... chdir resumed>) = 0 [pid 900] <... mkdirat resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 901] <... prctl resumed>) = 0 [pid 298] mkdir("./151", 0777 [pid 901] setpgid(0, 0) = 0 [pid 900] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 902 attached [pid 900] <... mount resumed>) = 0 [pid 297] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 902] set_robust_list(0x5555726b0660, 24 [pid 297] newfstatat(AT_FDCWD, "./146/binderfs2", [pid 902] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 902] chdir("./151" [pid 901] <... openat resumed>) = 3 [pid 900] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 902 [pid 297] umount2("./146/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 902] <... chdir resumed>) = 0 [pid 901] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 901] <... write resumed>) = 4 [pid 297] openat(AT_FDCWD, "./146/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 902] <... prctl resumed>) = 0 [pid 901] close(3 [pid 900] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 4 [pid 902] setpgid(0, 0 [pid 901] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 902] <... setpgid resumed>) = 0 [pid 901] symlink("/dev/binderfs", "./binderfs" [pid 900] exit_group(0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 902] <... openat resumed>) = 3 [pid 901] <... symlink resumed>) = 0 [pid 900] <... exit_group resumed>) = ? [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 902] write(3, "1000", 4 [pid 297] close(4 [pid 902] <... write resumed>) = 4 [pid 297] <... close resumed>) = 0 [pid 902] close(3) = 0 [pid 297] rmdir("./146/binderfs2" [pid 902] symlink("/dev/binderfs", "./binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 900] +++ exited with 0 +++ executing program [pid 901] write(1, "executing program\n", 18) = 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=900, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 902] <... symlink resumed>) = 0 executing program [pid 901] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 902] write(1, "executing program\n", 18 [pid 297] umount2("./146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 902] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 902] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(AT_FDCWD, "./146/binderfs", [pid 902] <... mkdirat resumed>) = 0 [pid 901] <... mkdirat resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./146/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 901] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] close(3) = 0 [pid 297] rmdir("./146" [pid 902] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 902] <... mount resumed>) = 0 [pid 901] <... mount resumed>) = 0 [pid 297] mkdir("./147", 0777 [pid 901] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... mkdir resumed>) = 0 [pid 902] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 901] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 901] exit_group(0) = ? [pid 902] <... openat resumed>) = 3 [pid 902] exit_group(0./strace-static-x86_64: Process 903 attached [pid 901] +++ exited with 0 +++ [pid 902] <... exit_group resumed>) = ? [pid 903] set_robust_list(0x5555726b0660, 24 [pid 902] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 903] <... set_robust_list resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 903 [pid 903] chdir("./147" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=902, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 903] <... chdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 903] setpgid(0, 0) = 0 [pid 903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... restart_syscall resumed>) = 0 [pid 903] <... openat resumed>) = 3 [pid 903] write(3, "1000", 4) = 4 [pid 298] umount2("./151", MNT_FORCE|UMOUNT_NOFOLLOW [pid 903] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 903] <... close resumed>) = 0 [pid 903] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(3, "", [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 299] umount2("./149", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 903] <... symlink resumed>) = 0 [pid 298] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 903] write(1, "executing program\n", 18) = 18 [pid 299] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 903] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./151/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 298] openat(AT_FDCWD, "./151/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 903] <... mkdirat resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 299] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./151/binderfs2" [pid 903] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./151/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 903] <... mount resumed>) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./151" [pid 903] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./149/binderfs2", [pid 903] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 903] exit_group(0 [pid 299] openat(AT_FDCWD, "./149/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 903] <... exit_group resumed>) = ? [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] mkdir("./152", 0777) = 0 [pid 300] umount2("./152", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 903] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, ./strace-static-x86_64: Process 904 attached [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./149/binderfs2" [pid 904] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 904 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 904] <... set_robust_list resumed>) = 0 [pid 300] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 904] chdir("./152" [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 904] <... chdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./149/binderfs", [pid 904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 904] setpgid(0, 0 [pid 300] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./149/binderfs" [pid 904] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... unlink resumed>) = 0 [pid 297] umount2("./147", MNT_FORCE|UMOUNT_NOFOLLOW [pid 904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./152/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 904] <... openat resumed>) = 3 [pid 300] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 904] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./152/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(3 [pid 297] <... openat resumed>) = 3 [pid 904] <... write resumed>) = 4 [pid 300] <... openat resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 904] close(3 [pid 300] newfstatat(4, "", [pid 299] rmdir("./149" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 904] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 904] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(3, [pid 299] mkdir("./150", 0777 [pid 904] <... symlink resumed>) = 0 executing program [pid 904] write(1, "executing program\n", 18 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 904] <... write resumed>) = 18 [pid 297] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./152/binderfs2") = 0 [pid 297] <... umount2 resumed>) = 0 [pid 904] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 904] <... mkdirat resumed>) = 0 [pid 297] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 905 attached [pid 300] umount2("./152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./152/binderfs", [pid 905] set_robust_list(0x5555726b0660, 24 [pid 904] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 905] <... set_robust_list resumed>) = 0 [pid 300] unlink("./152/binderfs" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 905 [pid 297] newfstatat(AT_FDCWD, "./147/binderfs2", [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 904] <... mount resumed>) = 0 [pid 300] rmdir("./152" [pid 905] chdir("./150") = 0 [pid 904] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./147/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 905] <... prctl resumed>) = 0 [pid 904] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 905] setpgid(0, 0) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 904] exit_group(0 [pid 297] openat(AT_FDCWD, "./147/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./153", 0777 [pid 905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 904] <... exit_group resumed>) = ? [pid 300] <... mkdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 906 attached [pid 904] +++ exited with 0 +++ [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 906 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=904, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(4, [pid 906] set_robust_list(0x5555726b0660, 24 [pid 905] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 906] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 906] chdir("./153" [pid 905] write(3, "1000", 4 [pid 297] getdents64(4, [pid 905] <... write resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 906] <... chdir resumed>) = 0 [pid 905] close(3 [pid 297] close(4 [pid 906] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 905] <... close resumed>) = 0 [pid 906] <... prctl resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 905] symlink("/dev/binderfs", "./binderfs" [pid 297] rmdir("./147/binderfs2" [pid 906] setpgid(0, 0 [pid 298] umount2("./152", MNT_FORCE|UMOUNT_NOFOLLOW [pid 906] <... setpgid resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 905] <... symlink resumed>) = 0 [pid 906] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 906] write(3, "1000", 4 executing program [pid 905] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 906] <... write resumed>) = 4 [pid 905] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 905] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 906] close(3) = 0 [pid 906] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./147/binderfs", [pid 906] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 906] write(1, "executing program\n", 18 [pid 905] <... mkdirat resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 905] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] unlink("./147/binderfs" [pid 906] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 906] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 905] <... mount resumed>) = 0 [pid 297] getdents64(3, [pid 298] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 905] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 906] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./152/binderfs2", [pid 297] close(3 [pid 906] <... mount resumed>) = 0 [pid 905] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./147" [pid 905] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./152/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 297] <... rmdir resumed>) = 0 [pid 905] <... exit_group resumed>) = ? [pid 906] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 906] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 906] exit_group(0) = ? [pid 905] +++ exited with 0 +++ [pid 297] mkdir("./148", 0777 [pid 906] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=906, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./152/binderfs2") = 0 [pid 298] umount2("./152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 907 attached [pid 300] <... restart_syscall resumed>) = 0 [pid 907] set_robust_list(0x5555726b0660, 24 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 907 [pid 300] umount2("./153", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./152/binderfs", [pid 907] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 907] chdir("./148" [pid 298] unlink("./152/binderfs" [pid 907] <... chdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 907] setpgid(0, 0 [pid 300] newfstatat(3, "", [pid 298] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 907] <... setpgid resumed>) = 0 [pid 907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 907] <... openat resumed>) = 3 [pid 907] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] close(3 [pid 300] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 907] <... write resumed>) = 4 [pid 298] <... close resumed>) = 0 [pid 907] close(3) = 0 [pid 907] symlink("/dev/binderfs", "./binderfs" [pid 298] rmdir("./152" [pid 907] <... symlink resumed>) = 0 [pid 907] write(1, "executing program\n", 18 [pid 298] <... rmdir resumed>) = 0 [pid 907] <... write resumed>) = 18 [pid 907] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./153", 0777 [pid 907] <... mkdirat resumed>) = 0 [pid 907] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(AT_FDCWD, "./153/binderfs2", ./strace-static-x86_64: Process 908 attached [pid 907] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 907] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 908] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 908] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./153/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 908 [pid 300] <... openat resumed>) = 4 [pid 908] chdir("./153" [pid 300] newfstatat(4, "", [pid 907] exit_group(0) = ? [pid 908] <... chdir resumed>) = 0 [pid 907] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... restart_syscall resumed>) = 0 [pid 908] setpgid(0, 0 [pid 300] getdents64(4, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 908] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] close(4 [pid 299] umount2("./150", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 908] <... openat resumed>) = 3 [pid 300] rmdir("./153/binderfs2" [pid 299] getdents64(3, [pid 908] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 908] <... write resumed>) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 908] close(3) = 0 [pid 300] umount2("./153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 908] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 908] write(1, "executing program\n", 18executing program [pid 300] newfstatat(AT_FDCWD, "./153/binderfs", [pid 908] <... write resumed>) = 18 [pid 908] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./150/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 299] openat(AT_FDCWD, "./150/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 908] <... mkdirat resumed>) = 0 [pid 300] unlink("./153/binderfs" [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 297] umount2("./148", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 908] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 299] getdents64(4, [pid 297] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] close(4) = 0 [pid 297] newfstatat(3, "", [pid 299] rmdir("./150/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 908] <... mount resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(3 [pid 297] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./153" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 908] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./150/binderfs", [pid 297] <... umount2 resumed>) = 0 [pid 300] mkdir("./154", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 908] <... openat resumed>) = 3 [pid 299] unlink("./150/binderfs") = 0 [pid 297] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./148/binderfs2", [pid 299] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 297] umount2("./148/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./150" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 908] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./148/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 908] <... exit_group resumed>) = ? [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 299] mkdir("./151", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 909 attached [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 909] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 909] chdir("./154" [pid 297] getdents64(4, [pid 909] <... chdir resumed>) = 0 [pid 908] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 909] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] close(4 [pid 909] <... prctl resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 909 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=908, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 909] setpgid(0, 0 [pid 297] <... close resumed>) = 0 [pid 909] <... setpgid resumed>) = 0 [pid 297] rmdir("./148/binderfs2"./strace-static-x86_64: Process 910 attached [pid 909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./153", MNT_FORCE|UMOUNT_NOFOLLOW [pid 910] set_robust_list(0x5555726b0660, 24 [pid 909] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 910 [pid 298] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 910] <... set_robust_list resumed>) = 0 [pid 909] write(3, "1000", 4 [pid 297] umount2("./148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 909] <... write resumed>) = 4 [pid 910] chdir("./151" [pid 909] close(3 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 910] <... chdir resumed>) = 0 [pid 909] <... close resumed>) = 0 [pid 298] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./148/binderfs", [pid 910] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 909] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 910] <... prctl resumed>) = 0 [pid 298] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 910] setpgid(0, 0 [pid 297] unlink("./148/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./153/binderfs2", [pid 909] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./153/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... unlink resumed>) = 0 executing program [pid 910] <... setpgid resumed>) = 0 [pid 909] write(1, "executing program\n", 18 [pid 297] getdents64(3, [pid 298] getdents64(4, [pid 910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 909] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 909] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... close resumed>) = 0 [pid 297] close(3 [pid 298] rmdir("./153/binderfs2") = 0 [pid 298] umount2("./153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./153/binderfs") = 0 [pid 909] <... mkdirat resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./153" [pid 910] <... openat resumed>) = 3 [pid 297] rmdir("./148" [pid 910] write(3, "1000", 4 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./154", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 910] <... write resumed>) = 4 [pid 297] mkdir("./149", 0777 [pid 910] close(3) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 910] symlink("/dev/binderfs", "./binderfs" [pid 909] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 911 attached [pid 911] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 911 [pid 911] <... set_robust_list resumed>) = 0 [pid 911] chdir("./154") = 0 [pid 911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 911] setpgid(0, 0) = 0 [pid 911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 909] <... mount resumed>) = 0 [pid 910] <... symlink resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 911] write(3, "1000", 4) = 4 [pid 911] close(3) = 0 [pid 911] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 910] write(1, "executing program\n", 18 [pid 911] write(1, "executing program\n", 18) = 18 [pid 911] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 912 attached executing program [pid 910] <... write resumed>) = 18 [pid 912] set_robust_list(0x5555726b0660, 24 [pid 911] <... mkdirat resumed>) = 0 [pid 910] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 912 [pid 912] <... set_robust_list resumed>) = 0 [pid 909] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 912] chdir("./149" [pid 911] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 912] <... chdir resumed>) = 0 [pid 910] <... mkdirat resumed>) = 0 [pid 909] <... openat resumed>) = 3 [pid 912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 911] <... mount resumed>) = 0 [pid 912] setpgid(0, 0 [pid 911] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 912] <... setpgid resumed>) = 0 [pid 911] <... openat resumed>) = 3 [pid 910] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 909] exit_group(0 [pid 912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 911] exit_group(0 [pid 912] write(3, "1000", 4 [pid 911] <... exit_group resumed>) = ? [pid 912] <... write resumed>) = 4 [pid 910] <... mount resumed>) = 0 [pid 909] <... exit_group resumed>) = ? [pid 912] close(3 [pid 911] +++ exited with 0 +++ [pid 910] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 912] <... close resumed>) = 0 [pid 910] <... openat resumed>) = 3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 912] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...>executing program [pid 910] exit_group(0 [pid 912] write(1, "executing program\n", 18) = 18 [pid 910] <... exit_group resumed>) = ? [pid 912] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 909] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 910] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 912] <... mkdirat resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=910, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 912] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 912] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 912] exit_group(0) = ? [pid 912] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=912, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./154", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./154", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(3, "", [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./149", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 300] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./151", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 297] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./149/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./149/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./154/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./154/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./149/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./154/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(4, "", [pid 300] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./154/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./149/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 298] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./151/binderfs2", [pid 298] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./149/binderfs", [pid 298] getdents64(4, [pid 300] rmdir("./154/binderfs2" [pid 299] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(4 [pid 299] openat(AT_FDCWD, "./151/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] rmdir("./154/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./149/binderfs") = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 300] umount2("./154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./149" [pid 300] newfstatat(AT_FDCWD, "./154/binderfs", [pid 299] getdents64(4, [pid 298] umount2("./154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./154/binderfs" [pid 299] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./154/binderfs", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 297] mkdir("./150", 0777 [pid 300] <... unlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] rmdir("./151/binderfs2" [pid 298] unlink("./154/binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] close(3 [pid 298] getdents64(3, [pid 299] umount2("./151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./154" [pid 298] close(3./strace-static-x86_64: Process 913 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 913 [pid 913] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 913] chdir("./150") = 0 [pid 913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] mkdir("./155", 0777 [pid 299] newfstatat(AT_FDCWD, "./151/binderfs", [pid 298] rmdir("./154" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 913] setpgid(0, 0) = 0 [pid 913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] unlink("./151/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 913] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 913] write(3, "1000", 4 [pid 299] getdents64(3, [pid 913] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 913] close(3 [pid 298] mkdir("./155", 0777 [pid 299] close(3 [pid 913] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 913] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... mkdir resumed>) = 0 [pid 913] write(1, "executing program\n", 18) = 18 executing program [pid 298] <... mkdir resumed>) = 0 [pid 913] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] rmdir("./151" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 913] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 913] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 914 attached ./strace-static-x86_64: Process 915 attached [pid 299] mkdir("./152", 0777 [pid 914] set_robust_list(0x5555726b0660, 24) = 0 [pid 914] chdir("./155" [pid 299] <... mkdir resumed>) = 0 [pid 915] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 914 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 915 [pid 915] <... set_robust_list resumed>) = 0 [pid 915] chdir("./155" [pid 914] <... chdir resumed>) = 0 [pid 913] <... mount resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 914] setpgid(0, 0 [pid 913] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 914] <... setpgid resumed>) = 0 [pid 915] <... chdir resumed>) = 0 [pid 914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 913] <... openat resumed>) = 3 [pid 914] <... openat resumed>) = 3 [pid 913] exit_group(0./strace-static-x86_64: Process 916 attached [pid 915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 914] write(3, "1000", 4 [pid 913] <... exit_group resumed>) = ? [pid 916] set_robust_list(0x5555726b0660, 24 [pid 915] setpgid(0, 0 [pid 914] <... write resumed>) = 4 [pid 913] +++ exited with 0 +++ [pid 915] <... setpgid resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 916 [pid 916] <... set_robust_list resumed>) = 0 [pid 915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 914] close(3) = 0 [pid 914] symlink("/dev/binderfs", "./binderfs" [pid 916] chdir("./152" [pid 915] <... openat resumed>) = 3 [pid 914] <... symlink resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 914] write(1, "executing program\n", 18 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 914] <... write resumed>) = 18 [pid 916] <... chdir resumed>) = 0 [pid 915] write(3, "1000", 4 [pid 916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 915] <... write resumed>) = 4 [pid 916] <... prctl resumed>) = 0 [pid 915] close(3) = 0 [pid 915] symlink("/dev/binderfs", "./binderfs" [pid 914] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 915] <... symlink resumed>) = 0 [pid 916] setpgid(0, 0) = 0 [pid 915] write(1, "executing program\n", 18 [pid 916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 915] <... write resumed>) = 18 [pid 916] <... openat resumed>) = 3 [pid 915] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 914] <... mkdirat resumed>) = 0 [pid 914] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... restart_syscall resumed>) = 0 [pid 916] write(3, "1000", 4 [pid 297] umount2("./150", MNT_FORCE|UMOUNT_NOFOLLOW [pid 916] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 916] close(3) = 0 [pid 915] <... mkdirat resumed>) = 0 [pid 914] <... mount resumed>) = 0 [pid 297] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 916] symlink("/dev/binderfs", "./binderfs" [pid 915] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... openat resumed>) = 3 [pid 914] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 916] <... symlink resumed>) = 0 [pid 914] <... openat resumed>) = 3 [pid 914] exit_group(0) = ? [pid 915] <... mount resumed>) = 0 [pid 297] newfstatat(3, "", executing program [pid 916] write(1, "executing program\n", 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 916] <... write resumed>) = 18 [pid 297] getdents64(3, [pid 916] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 915] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 914] +++ exited with 0 +++ [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 916] <... mkdirat resumed>) = 0 [pid 297] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 915] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=914, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 915] exit_group(0 [pid 297] <... umount2 resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 915] <... exit_group resumed>) = ? [pid 916] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 915] +++ exited with 0 +++ [pid 300] umount2("./155", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 916] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./150/binderfs2", [pid 916] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(3, "", [pid 916] <... openat resumed>) = 3 [pid 297] umount2("./150/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 297] openat(AT_FDCWD, "./150/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 916] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... openat resumed>) = 4 [pid 916] <... exit_group resumed>) = ? [pid 297] newfstatat(4, "", [pid 300] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 916] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=916, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./155/binderfs2", [pid 297] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./150/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./155/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./150/binderfs", [pid 300] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 297] unlink("./150/binderfs" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 297] <... unlink resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./155/binderfs2" [pid 297] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./150" [pid 300] newfstatat(AT_FDCWD, "./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] unlink("./155/binderfs" [pid 297] mkdir("./151", 0777 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./155") = 0 ./strace-static-x86_64: Process 917 attached [pid 300] mkdir("./156", 0777 [pid 917] set_robust_list(0x5555726b0660, 24) = 0 [pid 917] chdir("./151" [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 917 [pid 917] <... chdir resumed>) = 0 [pid 917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./155", MNT_FORCE|UMOUNT_NOFOLLOW [pid 917] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 917] setpgid(0, 0) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 917] <... openat resumed>) = 3 [pid 917] write(3, "1000", 4) = 4 [pid 917] close(3) = 0 [pid 917] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 918 attached ) = 0 [pid 918] set_robust_list(0x5555726b0660, 24) = 0 [pid 918] chdir("./156" [pid 917] write(1, "executing program\n", 18executing program [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 918 [pid 299] umount2("./152", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 918] <... chdir resumed>) = 0 [pid 917] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 917] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 918] <... prctl resumed>) = 0 [pid 917] <... mkdirat resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 918] setpgid(0, 0 [pid 299] newfstatat(3, "", [pid 298] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 918] <... setpgid resumed>) = 0 [pid 917] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 917] <... mount resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = 0 [pid 918] <... openat resumed>) = 3 [pid 918] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 918] <... write resumed>) = 4 [pid 299] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 918] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 918] <... close resumed>) = 0 [pid 918] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(AT_FDCWD, "./155/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 918] <... symlink resumed>) = 0 [pid 917] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 918] write(1, "executing program\n", 18 [pid 917] <... openat resumed>) = 3 [pid 299] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./155/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 918] <... write resumed>) = 18 [pid 918] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 917] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 4 [pid 918] <... mkdirat resumed>) = 0 [pid 917] <... exit_group resumed>) = ? [pid 299] newfstatat(AT_FDCWD, "./152/binderfs2", [pid 298] newfstatat(4, "", [pid 917] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 918] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 297] <... restart_syscall resumed>) = 0 [pid 918] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./152/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 918] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(4, "", [pid 297] umount2("./151", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 298] rmdir("./155/binderfs2" [pid 297] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 918] exit_group(0) = ? [pid 918] +++ exited with 0 +++ [pid 299] getdents64(4, [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=918, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4 [pid 298] umount2("./155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 299] rmdir("./152/binderfs2" [pid 297] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./156", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] unlink("./155/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 300] newfstatat(3, "", [pid 299] newfstatat(AT_FDCWD, "./152/binderfs", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 300] getdents64(3, [pid 299] unlink("./152/binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... unlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] rmdir("./155" [pid 297] newfstatat(AT_FDCWD, "./151/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./151/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./152" [pid 297] openat(AT_FDCWD, "./151/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./156", 0777 [pid 297] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./156/binderfs2", [pid 297] newfstatat(4, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./156/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", [pid 299] mkdir("./153", 0777 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 919 attached [pid 300] getdents64(4, [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 919] set_robust_list(0x5555726b0660, 24 [pid 297] getdents64(4, [pid 919] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, [pid 297] close(4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 297] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 919 [pid 297] rmdir("./151/binderfs2" [pid 919] chdir("./156" [pid 300] rmdir("./156/binderfs2" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 920 attached [pid 300] unlink("./156/binderfs" [pid 920] set_robust_list(0x5555726b0660, 24 [pid 300] <... unlink resumed>) = 0 [pid 919] <... chdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 920 [pid 297] umount2("./151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 920] <... set_robust_list resumed>) = 0 [pid 919] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 920] chdir("./153" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 920] <... chdir resumed>) = 0 [pid 919] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./151/binderfs", [pid 920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 919] <... setpgid resumed>) = 0 [pid 300] close(3 [pid 920] <... prctl resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 920] setpgid(0, 0 [pid 919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] unlink("./151/binderfs" [pid 920] <... setpgid resumed>) = 0 [pid 300] rmdir("./156" [pid 920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 919] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 920] <... openat resumed>) = 3 [pid 919] write(3, "1000", 4 [pid 297] getdents64(3, [pid 919] <... write resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 920] write(3, "1000", 4 [pid 300] mkdir("./157", 0777 [pid 920] <... write resumed>) = 4 [pid 919] close(3 [pid 300] <... mkdir resumed>) = 0 [pid 297] close(3 [pid 920] close(3 [pid 919] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 919] symlink("/dev/binderfs", "./binderfs" [pid 297] rmdir("./151" [pid 920] <... close resumed>) = 0 [pid 920] symlink("/dev/binderfs", "./binderfs") = 0 [pid 919] <... symlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 920] write(1, "executing program\n", 18executing program ) = 18 [pid 919] write(1, "executing program\n", 18 [pid 297] mkdir("./152", 0777./strace-static-x86_64: Process 921 attached [pid 920] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 921] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 921 executing program [pid 920] <... mkdirat resumed>) = 0 [pid 920] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 921] <... set_robust_list resumed>) = 0 [pid 919] <... write resumed>) = 18 [pid 921] chdir("./157" [pid 919] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 921] <... chdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 919] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 920] <... mount resumed>) = 0 [pid 920] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 920] exit_group(0 [pid 921] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 922 attached [pid 920] <... exit_group resumed>) = ? [pid 922] set_robust_list(0x5555726b0660, 24 [pid 921] setpgid(0, 0 [pid 920] +++ exited with 0 +++ [pid 919] <... mount resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 922 [pid 921] <... setpgid resumed>) = 0 [pid 922] <... set_robust_list resumed>) = 0 [pid 922] chdir("./152") = 0 [pid 921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 922] setpgid(0, 0) = 0 [pid 922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 922] write(3, "1000", 4) = 4 [pid 922] close(3) = 0 [pid 922] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 922] write(1, "executing program\n", 18) = 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=920, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 921] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 921] write(3, "1000", 4 [pid 919] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 921] <... write resumed>) = 4 [pid 922] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 921] close(3 [pid 922] <... mkdirat resumed>) = 0 [pid 921] <... close resumed>) = 0 [pid 919] <... openat resumed>) = 3 [pid 921] symlink("/dev/binderfs", "./binderfs" [pid 922] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 921] <... symlink resumed>) = 0 [pid 922] <... mount resumed>) = 0 [pid 921] write(1, "executing program\n", 18 [pid 919] exit_group(0 [pid 921] <... write resumed>) = 18 executing program [pid 919] <... exit_group resumed>) = ? [pid 922] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 921] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... restart_syscall resumed>) = 0 [pid 922] <... openat resumed>) = 3 [pid 922] exit_group(0) = ? [pid 921] <... mkdirat resumed>) = 0 [pid 299] umount2("./153", MNT_FORCE|UMOUNT_NOFOLLOW [pid 922] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=922, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 921] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 921] <... mount resumed>) = 0 [pid 919] +++ exited with 0 +++ [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(3, [pid 921] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 921] <... openat resumed>) = 3 [pid 921] exit_group(0 [pid 299] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 921] <... exit_group resumed>) = ? [pid 921] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./157", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(3, "", [pid 299] newfstatat(AT_FDCWD, "./153/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(3, [pid 299] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./153/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./157/binderfs2", [pid 299] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 300] openat(AT_FDCWD, "./157/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... close resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] rmdir("./153/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] rmdir("./157/binderfs2") = 0 [pid 299] umount2("./153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] umount2("./157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./152", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./157/binderfs" [pid 299] newfstatat(AT_FDCWD, "./153/binderfs", [pid 297] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./153/binderfs" [pid 300] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 298] umount2("./156", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 298] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 300] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] rmdir("./157" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] close(3 [pid 297] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] mkdir("./158", 0777 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./153" [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./152/binderfs2", [pid 299] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./152/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./152/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] mkdir("./154", 0777 [pid 298] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 299] <... mkdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./152/binderfs2" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 924 attached ./strace-static-x86_64: Process 923 attached [pid 924] set_robust_list(0x5555726b0660, 24 [pid 923] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 923 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 924] <... set_robust_list resumed>) = 0 [pid 923] <... set_robust_list resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./156/binderfs2", [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 924 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 923] chdir("./158" [pid 298] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 924] chdir("./154" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./156/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 924] <... chdir resumed>) = 0 [pid 923] <... chdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(4, "", [pid 924] <... prctl resumed>) = 0 [pid 923] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 924] setpgid(0, 0 [pid 923] <... prctl resumed>) = 0 [pid 298] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./152/binderfs", [pid 924] <... setpgid resumed>) = 0 [pid 923] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 923] <... setpgid resumed>) = 0 [pid 298] getdents64(4, [pid 297] unlink("./152/binderfs" [pid 923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... unlink resumed>) = 0 [pid 924] <... openat resumed>) = 3 [pid 298] close(4 [pid 924] write(3, "1000", 4 [pid 923] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 924] <... write resumed>) = 4 [pid 924] close(3 [pid 923] write(3, "1000", 4 [pid 298] rmdir("./156/binderfs2" [pid 924] <... close resumed>) = 0 [pid 923] <... write resumed>) = 4 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 924] symlink("/dev/binderfs", "./binderfs" [pid 923] close(3 [pid 297] close(3) = 0 [pid 924] <... symlink resumed>) = 0 [pid 923] <... close resumed>) = 0 [pid 297] rmdir("./152" [pid 298] umount2("./156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 923] symlink("/dev/binderfs", "./binderfs"executing program [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 924] write(1, "executing program\n", 18 [pid 297] <... rmdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 924] <... write resumed>) = 18 [pid 924] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 298] unlink("./156/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./156") = 0 [pid 924] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] mkdir("./153", 0777 [pid 923] <... symlink resumed>) = 0 [pid 298] mkdir("./157", 0777 [pid 297] <... mkdir resumed>) = 0 executing program [pid 923] write(1, "executing program\n", 18) = 18 [pid 298] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 924] <... mount resumed>) = 0 [pid 923] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 ./strace-static-x86_64: Process 925 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 925 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 925] set_robust_list(0x5555726b0660, 24) = 0 ./strace-static-x86_64: Process 926 attached [pid 924] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 926] set_robust_list(0x5555726b0660, 24 [pid 925] chdir("./153" [pid 924] <... openat resumed>) = 3 [pid 923] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 926] <... set_robust_list resumed>) = 0 [pid 925] <... chdir resumed>) = 0 [pid 924] exit_group(0 [pid 923] <... mount resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 926 [pid 926] chdir("./157" [pid 925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 924] <... exit_group resumed>) = ? [pid 925] <... prctl resumed>) = 0 [pid 925] setpgid(0, 0 [pid 924] +++ exited with 0 +++ [pid 925] <... setpgid resumed>) = 0 [pid 926] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=924, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 923] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 926] <... prctl resumed>) = 0 [pid 925] <... openat resumed>) = 3 [pid 923] <... openat resumed>) = 3 [pid 926] setpgid(0, 0) = 0 [pid 926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 925] write(3, "1000", 4 [pid 926] <... openat resumed>) = 3 [pid 925] <... write resumed>) = 4 [pid 923] exit_group(0 [pid 926] write(3, "1000", 4 [pid 925] close(3 [pid 923] <... exit_group resumed>) = ? [pid 925] <... close resumed>) = 0 [pid 925] symlink("/dev/binderfs", "./binderfs" [pid 923] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 926] <... write resumed>) = 4 [pid 926] close(3) = 0 [pid 926] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 926] write(1, "executing program\n", 18) = 18 [pid 926] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 925] <... symlink resumed>) = 0 executing program [pid 925] write(1, "executing program\n", 18) = 18 [pid 925] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 926] <... mkdirat resumed>) = 0 [pid 925] <... mkdirat resumed>) = 0 [pid 926] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... restart_syscall resumed>) = 0 [pid 925] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./158", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 926] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 299] umount2("./154", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 926] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 926] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 300] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 926] exit_group(0 [pid 925] <... mount resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 926] <... exit_group resumed>) = ? [pid 925] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./158/binderfs2", [pid 299] <... umount2 resumed>) = 0 [pid 925] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 925] exit_group(0 [pid 300] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 925] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./158/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./154/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 925] +++ exited with 0 +++ [pid 926] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./154/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(4, "", [pid 299] newfstatat(4, "", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=926, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] getdents64(4, [pid 299] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] close(4 [pid 300] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./154/binderfs2" [pid 300] rmdir("./158/binderfs2") = 0 [pid 300] umount2("./158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./158/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./158" [pid 299] umount2("./154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./154/binderfs", [pid 300] mkdir("./159", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] unlink("./154/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./154"./strace-static-x86_64: Process 927 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 927 [pid 927] set_robust_list(0x5555726b0660, 24 [pid 299] <... rmdir resumed>) = 0 [pid 927] <... set_robust_list resumed>) = 0 [pid 299] mkdir("./155", 0777 [pid 927] chdir("./159") = 0 [pid 927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... mkdir resumed>) = 0 [pid 927] <... prctl resumed>) = 0 [pid 927] setpgid(0, 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 927] <... setpgid resumed>) = 0 [pid 927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 928 attached [pid 297] umount2("./153", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 928 [pid 928] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 928] <... set_robust_list resumed>) = 0 [pid 297] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 928] chdir("./155" [pid 297] <... openat resumed>) = 3 [pid 928] <... chdir resumed>) = 0 [pid 927] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 927] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 928] <... prctl resumed>) = 0 [pid 927] <... write resumed>) = 4 [pid 297] getdents64(3, [pid 928] setpgid(0, 0 [pid 927] close(3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 928] <... setpgid resumed>) = 0 [pid 927] <... close resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 927] symlink("/dev/binderfs", "./binderfs" [pid 928] <... openat resumed>) = 3 [pid 927] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./153/binderfs2", [pid 928] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 928] <... write resumed>) = 4 executing program [pid 927] write(1, "executing program\n", 18 [pid 298] umount2("./157", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./153/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 928] close(3 [pid 927] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 928] <... close resumed>) = 0 [pid 927] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./153/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 928] symlink("/dev/binderfs", "./binderfs" [pid 297] <... openat resumed>) = 4 [pid 928] <... symlink resumed>) = 0 [pid 927] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(4, "", [pid 928] write(1, "executing program\n", 18executing program ) = 18 [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 927] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 928] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./153/binderfs2") = 0 [pid 927] <... mount resumed>) = 0 [pid 297] umount2("./153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./153/binderfs" [pid 927] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./153" [pid 928] <... mkdirat resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./154", 0777 [pid 928] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 927] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 928] <... mount resumed>) = 0 ./strace-static-x86_64: Process 929 attached [pid 927] exit_group(0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 929 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 927] <... exit_group resumed>) = ? [pid 929] set_robust_list(0x5555726b0660, 24) = 0 [pid 929] chdir("./154") = 0 [pid 929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 929] setpgid(0, 0) = 0 [pid 927] +++ exited with 0 +++ [pid 298] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 929] <... openat resumed>) = 3 [pid 929] write(3, "1000", 4executing program ) = 4 [pid 929] close(3) = 0 [pid 929] symlink("/dev/binderfs", "./binderfs") = 0 [pid 929] write(1, "executing program\n", 18) = 18 [pid 929] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 929] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 929] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 929] exit_group(0) = ? [pid 929] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=929, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 928] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 928] exit_group(0) = ? [pid 298] <... umount2 resumed>) = 0 [pid 298] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./157/binderfs2", [pid 928] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=928, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./157/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./157/binderfs2") = 0 [pid 298] umount2("./157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./157/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] umount2("./159", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] umount2("./155", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] rmdir("./157" [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 297] umount2("./154", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 298] mkdir("./158", 0777 [pid 297] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./159/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./155/binderfs2", [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 299] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] openat(AT_FDCWD, "./155/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", [pid 300] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 300] openat(AT_FDCWD, "./159/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, ./strace-static-x86_64: Process 930 attached [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 930] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(4 [pid 930] <... set_robust_list resumed>) = 0 [pid 930] chdir("./158" [pid 300] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 930 [pid 930] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./155/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 930] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./154/binderfs2", [pid 930] setpgid(0, 0 [pid 300] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 930] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./155/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./159/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./154/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 930] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] unlink("./155/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 930] write(3, "1000", 4 [pid 299] <... unlink resumed>) = 0 [pid 930] <... write resumed>) = 4 [pid 297] openat(AT_FDCWD, "./154/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 930] close(3) = 0 [pid 300] umount2("./159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 930] symlink("/dev/binderfs", "./binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 930] <... symlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./159/binderfs", executing program [pid 299] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 930] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 930] <... write resumed>) = 18 [pid 297] getdents64(4, [pid 930] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./155" [pid 297] getdents64(4, [pid 930] <... mkdirat resumed>) = 0 [pid 300] unlink("./159/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 930] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] close(4 [pid 299] mkdir("./156", 0777 [pid 297] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] rmdir("./154/binderfs2" [pid 930] <... mount resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 [pid 930] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] umount2("./154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 931 attached [pid 930] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 931] set_robust_list(0x5555726b0660, 24 [pid 930] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 931 [pid 297] newfstatat(AT_FDCWD, "./154/binderfs", [pid 931] <... set_robust_list resumed>) = 0 [pid 300] close(3 [pid 931] chdir("./156" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 931] <... chdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] unlink("./154/binderfs" [pid 931] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 930] <... exit_group resumed>) = ? [pid 300] rmdir("./159" [pid 931] <... prctl resumed>) = 0 [pid 931] setpgid(0, 0) = 0 [pid 297] <... unlink resumed>) = 0 [pid 931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 931] <... openat resumed>) = 3 [pid 931] write(3, "1000", 4) = 4 [pid 931] close(3) = 0 [pid 931] symlink("/dev/binderfs", "./binderfs") = 0 [pid 931] write(1, "executing program\n", 18) = 18 [pid 930] +++ exited with 0 +++ [pid 931] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] mkdir("./160", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=930, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... close resumed>) = 0 [pid 931] <... mkdirat resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 297] rmdir("./154" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 931] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 932 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 932 [pid 297] mkdir("./155", 0777 [pid 932] set_robust_list(0x5555726b0660, 24) = 0 [pid 932] chdir("./160") = 0 [pid 932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 931] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... mkdir resumed>) = 0 [pid 932] setpgid(0, 0 [pid 931] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 932] <... setpgid resumed>) = 0 [pid 932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 931] exit_group(0 [pid 932] <... openat resumed>) = 3 [pid 931] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 933 attached [pid 932] write(3, "1000", 4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 933 [pid 933] set_robust_list(0x5555726b0660, 24 [pid 932] <... write resumed>) = 4 [pid 933] <... set_robust_list resumed>) = 0 [pid 932] close(3 [pid 931] +++ exited with 0 +++ [pid 932] <... close resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=931, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 933] chdir("./155" [pid 932] symlink("/dev/binderfs", "./binderfs" [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 933] <... chdir resumed>) = 0 [pid 933] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 932] <... symlink resumed>) = 0 [pid 933] <... prctl resumed>) = 0 executing program [pid 932] write(1, "executing program\n", 18) = 18 [pid 932] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 933] setpgid(0, 0) = 0 [pid 933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 933] write(3, "1000", 4 [pid 932] <... mkdirat resumed>) = 0 [pid 933] <... write resumed>) = 4 [pid 933] close(3 [pid 932] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 933] <... close resumed>) = 0 [pid 933] symlink("/dev/binderfs", "./binderfs") = 0 [pid 932] <... mount resumed>) = 0 [pid 932] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 933] write(1, "executing program\n", 18executing program [pid 932] <... openat resumed>) = 3 [pid 933] <... write resumed>) = 18 [pid 932] exit_group(0) = ? [pid 933] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 933] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 932] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 933] <... mount resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 933] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./158", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./156", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 933] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 933] exit_group(0 [pid 299] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 3 [pid 933] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 299] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 299] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 933] +++ exited with 0 +++ [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./158/binderfs2", [pid 300] umount2("./160", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./156/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./158/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 299] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./156/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 298] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 298] close(4 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 298] rmdir("./158/binderfs2" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./155", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 300] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./160/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./160/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(AT_FDCWD, "./158/binderfs", [pid 300] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] unlink("./158/binderfs" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(4 [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./156/binderfs2" [pid 300] getdents64(4, [pid 297] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./160/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 298] close(3 [pid 297] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] newfstatat(AT_FDCWD, "./156/binderfs", [pid 300] umount2("./160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./158" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./156/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 300] unlink("./160/binderfs" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] mkdir("./159", 0777 [pid 300] <... unlink resumed>) = 0 [pid 299] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./156" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./160" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./155/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] mkdir("./157", 0777 [pid 297] umount2("./155/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 934 attached ) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./161", 0777 [pid 934] set_robust_list(0x5555726b0660, 24 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./155/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 934] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 934 [pid 934] chdir("./159" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 4 [pid 934] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(4, "", [pid 934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 935 attached [pid 297] getdents64(4, [pid 934] <... prctl resumed>) = 0 [pid 934] setpgid(0, 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 934] <... setpgid resumed>) = 0 [pid 934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 935 [pid 934] write(3, "1000", 4./strace-static-x86_64: Process 936 attached [pid 935] set_robust_list(0x5555726b0660, 24 [pid 934] <... write resumed>) = 4 [pid 297] getdents64(4, [pid 935] <... set_robust_list resumed>) = 0 [pid 936] set_robust_list(0x5555726b0660, 24 [pid 934] close(3 [pid 936] <... set_robust_list resumed>) = 0 [pid 934] <... close resumed>) = 0 [pid 936] chdir("./157" [pid 934] symlink("/dev/binderfs", "./binderfs" [pid 935] chdir("./161" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 936 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 935] <... chdir resumed>) = 0 [pid 297] close(4 [pid 935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... close resumed>) = 0 executing program [pid 936] <... chdir resumed>) = 0 [pid 934] <... symlink resumed>) = 0 [pid 297] rmdir("./155/binderfs2" [pid 936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 934] write(1, "executing program\n", 18 [pid 936] setpgid(0, 0 [pid 934] <... write resumed>) = 18 [pid 936] <... setpgid resumed>) = 0 [pid 935] <... prctl resumed>) = 0 [pid 934] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 935] setpgid(0, 0 [pid 934] <... mkdirat resumed>) = 0 [pid 297] umount2("./155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 935] <... setpgid resumed>) = 0 [pid 936] write(3, "1000", 4) = 4 [pid 935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 936] close(3 [pid 297] newfstatat(AT_FDCWD, "./155/binderfs", [pid 936] <... close resumed>) = 0 [pid 934] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 936] symlink("/dev/binderfs", "./binderfs") = 0 [pid 935] <... openat resumed>) = 3 [pid 934] <... mount resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 935] write(3, "1000", 4 [pid 297] unlink("./155/binderfs" [pid 935] <... write resumed>) = 4 [pid 936] write(1, "executing program\n", 18) = 18 [pid 936] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program ) = 0 [pid 935] close(3 [pid 297] <... unlink resumed>) = 0 [pid 934] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 935] <... close resumed>) = 0 [pid 934] <... openat resumed>) = 3 [pid 297] getdents64(3, [pid 935] symlink("/dev/binderfs", "./binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 936] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 934] exit_group(0 [pid 936] <... mount resumed>) = 0 [pid 935] <... symlink resumed>) = 0 [pid 297] close(3 [pid 934] <... exit_group resumed>) = ? executing program [pid 935] write(1, "executing program\n", 18 [pid 297] <... close resumed>) = 0 [pid 936] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] rmdir("./155" [pid 935] <... write resumed>) = 18 [pid 936] <... openat resumed>) = 3 [pid 936] exit_group(0 [pid 297] <... rmdir resumed>) = 0 [pid 935] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 936] <... exit_group resumed>) = ? [pid 934] +++ exited with 0 +++ [pid 935] <... mkdirat resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=934, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] mkdir("./156", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 936] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./159", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 935] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=936, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 937 attached [pid 935] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 935] <... openat resumed>) = 3 [pid 937] set_robust_list(0x5555726b0660, 24) = 0 [pid 935] exit_group(0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 937 [pid 937] chdir("./156" [pid 935] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = 0 [pid 937] <... chdir resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 937] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./159/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 935] +++ exited with 0 +++ [pid 937] <... setpgid resumed>) = 0 [pid 298] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./157", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./159/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 937] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 937] write(3, "1000", 4 [pid 298] rmdir("./159/binderfs2" [pid 937] <... write resumed>) = 4 [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 937] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 937] <... close resumed>) = 0 [pid 937] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./159/binderfs" [pid 299] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 937] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./159" [pid 299] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 937] write(1, "executing program\n", 18executing program [pid 299] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 937] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 937] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] mkdir("./160", 0777 [pid 299] newfstatat(AT_FDCWD, "./157/binderfs2", [pid 937] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 937] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 938 attached [pid 938] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 938 [pid 938] chdir("./160" [pid 937] <... mount resumed>) = 0 [pid 299] openat(AT_FDCWD, "./157/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 938] <... chdir resumed>) = 0 [pid 938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 938] setpgid(0, 0) = 0 [pid 938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... openat resumed>) = 4 [pid 938] write(3, "1000", 4 [pid 299] newfstatat(4, "", [pid 938] <... write resumed>) = 4 [pid 938] close(3 [pid 937] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 938] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 938] symlink("/dev/binderfs", "./binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 938] <... symlink resumed>) = 0 [pid 299] getdents64(4, executing program [pid 938] write(1, "executing program\n", 18 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 937] <... openat resumed>) = 3 [pid 299] close(4 [pid 300] <... restart_syscall resumed>) = 0 [pid 938] <... write resumed>) = 18 [pid 938] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 937] exit_group(0 [pid 299] <... close resumed>) = 0 [pid 937] <... exit_group resumed>) = ? [pid 299] rmdir("./157/binderfs2") = 0 [pid 300] umount2("./161", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 938] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 938] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 938] <... mount resumed>) = 0 [pid 937] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=937, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./156", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] unlink("./157/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 938] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 938] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 938] exit_group(0 [pid 299] getdents64(3, [pid 300] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 938] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(3, "", [pid 299] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./161/binderfs2", [pid 299] rmdir("./157" [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./161/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 300] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 938] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=938, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./161/binderfs2" [pid 299] mkdir("./158", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] unlink("./161/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./161" [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] mkdir("./162", 0777./strace-static-x86_64: Process 939 attached ) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 939 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./156/binderfs2", [pid 939] set_robust_list(0x5555726b0660, 24 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./156/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 939] <... set_robust_list resumed>) = 0 [pid 939] chdir("./158" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 939] <... chdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./160", MNT_FORCE|UMOUNT_NOFOLLOW [pid 939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./156/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 940 attached [pid 939] <... prctl resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 940] set_robust_list(0x5555726b0660, 24 [pid 298] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(4, "", [pid 298] <... openat resumed>) = 3 [pid 939] setpgid(0, 0 [pid 940] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 939] <... setpgid resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 940 [pid 298] newfstatat(3, "", [pid 297] getdents64(4, [pid 940] chdir("./162" [pid 939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 940] <... chdir resumed>) = 0 [pid 939] <... openat resumed>) = 3 [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, [pid 940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 939] write(3, "1000", 4 [pid 298] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 940] <... prctl resumed>) = 0 [pid 939] <... write resumed>) = 4 [pid 297] close(4 [pid 940] setpgid(0, 0 [pid 297] <... close resumed>) = 0 [pid 940] <... setpgid resumed>) = 0 [pid 939] close(3 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./156/binderfs2" [pid 939] <... close resumed>) = 0 [pid 939] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 298] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 939] write(1, "executing program\n", 18 [pid 298] newfstatat(AT_FDCWD, "./160/binderfs2", [pid 297] <... rmdir resumed>) = 0 [pid 940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 939] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 939] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 940] <... openat resumed>) = 3 [pid 297] umount2("./156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 940] write(3, "1000", 4 [pid 939] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 940] <... write resumed>) = 4 [pid 940] close(3 [pid 298] openat(AT_FDCWD, "./160/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 940] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./156/binderfs", [pid 940] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 939] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 4 [pid 940] <... symlink resumed>) = 0 [pid 939] <... mount resumed>) = 0 [pid 298] newfstatat(4, "", [pid 297] unlink("./156/binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... unlink resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 297] getdents64(3, executing program [pid 940] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 940] <... write resumed>) = 18 [pid 297] close(3 [pid 298] rmdir("./160/binderfs2" [pid 297] <... close resumed>) = 0 [pid 940] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./156" [pid 939] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 940] <... mkdirat resumed>) = 0 [pid 939] exit_group(0 [pid 298] umount2("./160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 939] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 940] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 939] +++ exited with 0 +++ [pid 298] newfstatat(AT_FDCWD, "./160/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./157", 0777 [pid 298] unlink("./160/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] <... mkdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=939, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./160") = 0 [pid 298] mkdir("./161", 0777) = 0 [pid 940] <... mount resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./158", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 941 attached [pid 941] set_robust_list(0x5555726b0660, 24./strace-static-x86_64: Process 942 attached ) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 942] set_robust_list(0x5555726b0660, 24 [pid 941] chdir("./161" [pid 299] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 941 [pid 940] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 942 [pid 299] <... openat resumed>) = 3 [pid 942] <... set_robust_list resumed>) = 0 [pid 941] <... chdir resumed>) = 0 [pid 940] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 942] chdir("./157" [pid 941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 942] <... chdir resumed>) = 0 [pid 941] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 941] setpgid(0, 0 [pid 942] <... prctl resumed>) = 0 [pid 941] <... setpgid resumed>) = 0 [pid 299] getdents64(3, [pid 942] setpgid(0, 0 [pid 941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 942] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 940] exit_group(0 [pid 299] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 942] <... openat resumed>) = 3 [pid 941] <... openat resumed>) = 3 [pid 941] write(3, "1000", 4 [pid 942] write(3, "1000", 4 [pid 941] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = 0 [pid 942] <... write resumed>) = 4 [pid 941] close(3 [pid 942] close(3 [pid 941] <... close resumed>) = 0 [pid 942] <... close resumed>) = 0 [pid 941] symlink("/dev/binderfs", "./binderfs" [pid 942] symlink("/dev/binderfs", "./binderfs" [pid 941] <... symlink resumed>) = 0 [pid 940] <... exit_group resumed>) = ? [pid 299] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 942] <... symlink resumed>) = 0 [pid 941] write(1, "executing program\n", 18) = 18 [pid 942] write(1, "executing program\n", 18executing program executing program [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 942] <... write resumed>) = 18 [pid 299] newfstatat(AT_FDCWD, "./158/binderfs2", [pid 942] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 940] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 941] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=940, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 942] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] openat(AT_FDCWD, "./158/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 942] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 942] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 942] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 942] exit_group(0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./158/binderfs2" [pid 942] <... exit_group resumed>) = ? [pid 941] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 941] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 942] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=942, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./158/binderfs", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 941] <... mount resumed>) = 0 [pid 941] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] unlink("./158/binderfs" [pid 941] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 941] exit_group(0) = ? [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 300] umount2("./162", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 941] +++ exited with 0 +++ [pid 300] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] rmdir("./158" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] getdents64(3, [pid 299] mkdir("./159", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... mkdir resumed>) = 0 [pid 300] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./157", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./161", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 3 ./strace-static-x86_64: Process 943 attached [pid 943] set_robust_list(0x5555726b0660, 24 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 943] <... set_robust_list resumed>) = 0 [pid 300] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 943] chdir("./159" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 943 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 943] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./162/binderfs2", [pid 298] getdents64(3, [pid 943] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, [pid 943] <... prctl resumed>) = 0 [pid 300] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 943] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 943] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./162/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] newfstatat(4, "", [pid 943] <... openat resumed>) = 3 [pid 297] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 943] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 943] <... write resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./157/binderfs2", [pid 943] close(3) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 943] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./157/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 943] <... symlink resumed>) = 0 [pid 300] getdents64(4, [pid 943] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 298] newfstatat(AT_FDCWD, "./161/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 943] <... write resumed>) = 18 [pid 300] close(4) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 943] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./162/binderfs2" [pid 298] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./157/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 943] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 4 [pid 943] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] newfstatat(4, "", [pid 298] openat(AT_FDCWD, "./161/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 300] newfstatat(AT_FDCWD, "./162/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 943] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 943] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] unlink("./162/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 943] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 943] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 943] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 298] close(4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] rmdir("./161/binderfs2" [pid 300] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] rmdir("./162" [pid 297] close(4 [pid 943] +++ exited with 0 +++ [pid 297] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] rmdir("./157/binderfs2" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./163", 0777 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./161/binderfs", [pid 297] umount2("./157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./161/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./159", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./157/binderfs", [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 944 attached [pid 299] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] unlink("./157/binderfs" [pid 944] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] close(3 [pid 297] <... unlink resumed>) = 0 [pid 944] chdir("./163" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 944 [pid 299] newfstatat(3, "", [pid 298] <... close resumed>) = 0 [pid 944] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] rmdir("./161" [pid 297] getdents64(3, [pid 944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 944] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 944] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] mkdir("./162", 0777 [pid 297] close(3 [pid 944] <... setpgid resumed>) = 0 [pid 299] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 944] <... openat resumed>) = 3 [pid 297] rmdir("./157" [pid 944] write(3, "1000", 4 [pid 299] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 944] <... write resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 944] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./158", 0777./strace-static-x86_64: Process 945 attached [pid 944] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./159/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 945] set_robust_list(0x5555726b0660, 24 [pid 944] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 945] <... set_robust_list resumed>) = 0 [pid 944] <... symlink resumed>) = 0 [pid 299] openat(AT_FDCWD, "./159/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 945 [pid 945] chdir("./162" [pid 944] write(1, "executing program\n", 18 [pid 299] <... openat resumed>) = 4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 945] <... chdir resumed>) = 0 [pid 944] <... write resumed>) = 18 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, ./strace-static-x86_64: Process 946 attached [pid 945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 944] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 945] <... prctl resumed>) = 0 [pid 299] close(4 [pid 945] setpgid(0, 0 [pid 299] <... close resumed>) = 0 [pid 945] <... setpgid resumed>) = 0 [pid 299] rmdir("./159/binderfs2" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 946 [pid 946] set_robust_list(0x5555726b0660, 24 [pid 945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 944] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 945] <... openat resumed>) = 3 [pid 944] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 946] <... set_robust_list resumed>) = 0 [pid 945] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./159/binderfs" [pid 944] <... mount resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 946] chdir("./158" [pid 945] <... write resumed>) = 4 [pid 944] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 946] <... chdir resumed>) = 0 [pid 945] close(3 [pid 946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 945] <... close resumed>) = 0 [pid 944] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 946] <... prctl resumed>) = 0 [pid 945] symlink("/dev/binderfs", "./binderfs" [pid 944] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 946] setpgid(0, 0 [pid 945] <... symlink resumed>) = 0 [pid 944] <... exit_group resumed>) = ? [pid 299] close(3 [pid 946] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] rmdir("./159"executing program ) = 0 [pid 945] write(1, "executing program\n", 18 [pid 946] <... openat resumed>) = 3 [pid 945] <... write resumed>) = 18 [pid 946] write(3, "1000", 4 [pid 945] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 946] <... write resumed>) = 4 [pid 944] +++ exited with 0 +++ [pid 299] mkdir("./160", 0777 [pid 946] close(3 [pid 945] <... mkdirat resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=944, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... mkdir resumed>) = 0 [pid 946] <... close resumed>) = 0 [pid 945] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 946] symlink("/dev/binderfs", "./binderfs" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 947 attached executing program [pid 946] <... symlink resumed>) = 0 [pid 945] <... mount resumed>) = 0 [pid 947] set_robust_list(0x5555726b0660, 24 [pid 946] write(1, "executing program\n", 18 [pid 947] <... set_robust_list resumed>) = 0 [pid 945] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 946] <... write resumed>) = 18 [pid 947] chdir("./160" [pid 946] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 947] <... chdir resumed>) = 0 [pid 945] <... openat resumed>) = 3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 947 [pid 946] <... mkdirat resumed>) = 0 [pid 947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 946] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 945] exit_group(0 [pid 947] setpgid(0, 0) = 0 [pid 945] <... exit_group resumed>) = ? [pid 946] <... mount resumed>) = 0 [pid 945] +++ exited with 0 +++ [pid 947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 947] <... openat resumed>) = 3 [pid 946] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 947] write(3, "1000", 4 [pid 946] <... openat resumed>) = 3 [pid 947] <... write resumed>) = 4 [pid 947] close(3) = 0 [pid 946] exit_group(0 [pid 947] symlink("/dev/binderfs", "./binderfs" [pid 946] <... exit_group resumed>) = ? [pid 947] <... symlink resumed>) = 0 [pid 946] +++ exited with 0 +++ executing program [pid 947] write(1, "executing program\n", 18) = 18 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=946, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 947] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./158", MNT_FORCE|UMOUNT_NOFOLLOW [pid 947] <... mkdirat resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 947] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] umount2("./163", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 947] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 947] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 947] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 947] exit_group(0 [pid 300] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 947] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 947] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./163/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./158/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./160", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./158/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] openat(AT_FDCWD, "./163/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 298] umount2("./162", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./158/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(3, "", [pid 298] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] rmdir("./163/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] umount2("./163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 299] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./158/binderfs2" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./160/binderfs2", [pid 300] unlink("./163/binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 299] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./162/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./160/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./158/binderfs", [pid 300] close(3 [pid 299] <... openat resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./163" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] unlink("./158/binderfs" [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./162/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 4 [pid 297] <... unlink resumed>) = 0 [pid 300] mkdir("./164", 0777 [pid 299] getdents64(4, [pid 298] newfstatat(4, "", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 298] getdents64(4, [pid 299] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./160/binderfs2" [pid 297] close(3 [pid 298] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 297] rmdir("./158" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./162/binderfs2" [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 948 attached [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... rmdir resumed>) = 0 [pid 297] mkdir("./159", 0777 [pid 948] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] newfstatat(AT_FDCWD, "./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 948] chdir("./164" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 948 [pid 299] unlink("./160/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 948] <... chdir resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./162/binderfs", [pid 297] <... mkdir resumed>) = 0 [pid 948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 948] <... prctl resumed>) = 0 [pid 299] getdents64(3, [pid 298] unlink("./162/binderfs" [pid 948] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 948] <... setpgid resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] close(3 [pid 298] getdents64(3, ./strace-static-x86_64: Process 949 attached [pid 948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./160" [pid 298] close(3 [pid 949] set_robust_list(0x5555726b0660, 24 [pid 298] <... close resumed>) = 0 [pid 948] <... openat resumed>) = 3 [pid 949] <... set_robust_list resumed>) = 0 [pid 298] rmdir("./162" [pid 949] chdir("./159" [pid 948] write(3, "1000", 4 [pid 298] <... rmdir resumed>) = 0 [pid 948] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 949 [pid 949] <... chdir resumed>) = 0 [pid 948] close(3 [pid 299] mkdir("./161", 0777 [pid 298] mkdir("./163", 0777 [pid 949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 948] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 949] <... prctl resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 948] symlink("/dev/binderfs", "./binderfs" [pid 949] setpgid(0, 0 [pid 948] <... symlink resumed>) = 0 [pid 949] <... setpgid resumed>) = 0 executing program [pid 949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 948] write(1, "executing program\n", 18 [pid 949] <... openat resumed>) = 3 [pid 948] <... write resumed>) = 18 [pid 949] write(3, "1000", 4./strace-static-x86_64: Process 950 attached ) = 4 [pid 948] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 951 attached [pid 950] set_robust_list(0x5555726b0660, 24 [pid 949] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 950 [pid 949] <... close resumed>) = 0 [pid 951] set_robust_list(0x5555726b0660, 24 [pid 950] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 951 [pid 950] chdir("./161") = 0 [pid 948] <... mkdirat resumed>) = 0 [pid 950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 950] setpgid(0, 0) = 0 executing program executing program [pid 950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 951] <... set_robust_list resumed>) = 0 [pid 949] symlink("/dev/binderfs", "./binderfs" [pid 948] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 950] <... openat resumed>) = 3 [pid 950] write(3, "1000", 4 [pid 949] <... symlink resumed>) = 0 [pid 950] <... write resumed>) = 4 [pid 951] chdir("./163" [pid 950] close(3 [pid 949] write(1, "executing program\n", 18 [pid 950] <... close resumed>) = 0 [pid 949] <... write resumed>) = 18 [pid 950] symlink("/dev/binderfs", "./binderfs") = 0 [pid 949] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 950] write(1, "executing program\n", 18) = 18 [pid 950] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 948] <... mount resumed>) = 0 [pid 951] <... chdir resumed>) = 0 [pid 950] <... mkdirat resumed>) = 0 [pid 949] <... mkdirat resumed>) = 0 [pid 950] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 949] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 951] <... prctl resumed>) = 0 [pid 948] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 951] setpgid(0, 0) = 0 [pid 951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 948] <... openat resumed>) = 3 [pid 950] <... mount resumed>) = 0 [pid 950] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 950] exit_group(0) = ? [pid 949] <... mount resumed>) = 0 [pid 951] write(3, "1000", 4) = 4 [pid 950] +++ exited with 0 +++ [pid 949] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 948] exit_group(0 [pid 951] close(3 [pid 948] <... exit_group resumed>) = ? [pid 951] <... close resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=950, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 949] <... openat resumed>) = 3 [pid 948] +++ exited with 0 +++ [pid 951] symlink("/dev/binderfs", "./binderfs" [pid 949] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=948, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 949] <... exit_group resumed>) = ? [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 951] <... symlink resumed>) = 0 [pid 949] +++ exited with 0 +++ [pid 951] write(1, "executing program\n", 18executing program ) = 18 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 951] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 951] <... mkdirat resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 951] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./159", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 951] <... mount resumed>) = 0 [pid 951] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 951] <... openat resumed>) = 3 [pid 297] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 951] exit_group(0) = ? [pid 297] <... umount2 resumed>) = 0 [pid 951] +++ exited with 0 +++ [pid 299] <... restart_syscall resumed>) = 0 [pid 297] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./159/binderfs2", [pid 299] umount2("./161", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./163", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./159/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./159/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 297] newfstatat(4, "", [pid 299] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./161/binderfs2", [pid 297] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] openat(AT_FDCWD, "./161/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 297] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] rmdir("./159/binderfs2" [pid 299] getdents64(4, [pid 298] newfstatat(AT_FDCWD, "./163/binderfs2", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(4 [pid 298] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 299] rmdir("./161/binderfs2" [pid 298] openat(AT_FDCWD, "./163/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 297] newfstatat(AT_FDCWD, "./159/binderfs", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(AT_FDCWD, "./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./164", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./159/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./161/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 298] close(4 [pid 297] <... unlink resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] rmdir("./163/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./161" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] umount2("./163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./163/binderfs", [pid 297] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./163/binderfs") = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] rmdir("./159" [pid 299] mkdir("./162", 0777 [pid 300] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] mkdir("./160", 0777 [pid 298] <... close resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(AT_FDCWD, "./164/binderfs2", ./strace-static-x86_64: Process 952 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./163" [pid 300] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 952] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./164", 0777 [pid 952] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./164/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 952 [pid 298] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 952] chdir("./162" [pid 300] <... openat resumed>) = 4 [pid 952] <... chdir resumed>) = 0 [pid 300] newfstatat(4, "", [pid 952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 952] <... prctl resumed>) = 0 [pid 300] getdents64(4, [pid 952] setpgid(0, 0) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 953 attached ) = 3 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(4, [pid 953] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 953] <... set_robust_list resumed>) = 0 [pid 300] close(4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 953 ./strace-static-x86_64: Process 954 attached [pid 953] chdir("./160" [pid 952] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 954] set_robust_list(0x5555726b0660, 24 [pid 952] <... write resumed>) = 4 [pid 300] rmdir("./164/binderfs2" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 954 [pid 954] <... set_robust_list resumed>) = 0 [pid 953] <... chdir resumed>) = 0 [pid 952] close(3 [pid 954] chdir("./164" [pid 952] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 954] <... chdir resumed>) = 0 [pid 952] symlink("/dev/binderfs", "./binderfs" [pid 954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 953] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 952] <... symlink resumed>) = 0 [pid 300] umount2("./164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 954] <... prctl resumed>) = 0 executing program [pid 953] <... prctl resumed>) = 0 [pid 952] write(1, "executing program\n", 18 [pid 954] setpgid(0, 0 [pid 953] setpgid(0, 0 [pid 952] <... write resumed>) = 18 [pid 954] <... setpgid resumed>) = 0 [pid 953] <... setpgid resumed>) = 0 [pid 952] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./164/binderfs", [pid 954] <... openat resumed>) = 3 [pid 953] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 953] write(3, "1000", 4 [pid 300] unlink("./164/binderfs" [pid 953] <... write resumed>) = 4 [pid 954] write(3, "1000", 4 [pid 953] close(3 [pid 952] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 954] <... write resumed>) = 4 [pid 954] close(3) = 0 [pid 954] symlink("/dev/binderfs", "./binderfs" [pid 953] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 953] symlink("/dev/binderfs", "./binderfs" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 954] <... symlink resumed>) = 0 [pid 953] <... symlink resumed>) = 0 [pid 952] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(3) = 0 [pid 953] write(1, "executing program\n", 18executing program [pid 300] rmdir("./164" [pid 953] <... write resumed>) = 18 [pid 954] write(1, "executing program\n", 18executing program [pid 952] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 954] <... write resumed>) = 18 [pid 953] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 954] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 952] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 953] <... mkdirat resumed>) = 0 [pid 952] <... openat resumed>) = 3 [pid 300] mkdir("./165", 0777 [pid 954] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 953] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 952] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 952] <... exit_group resumed>) = ? [pid 952] +++ exited with 0 +++ [pid 954] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=952, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 954] exit_group(0) = ? ./strace-static-x86_64: Process 955 attached [pid 954] +++ exited with 0 +++ [pid 953] <... mount resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 953] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 955 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=954, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 953] <... openat resumed>) = 3 [pid 955] set_robust_list(0x5555726b0660, 24 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 955] <... set_robust_list resumed>) = 0 [pid 953] exit_group(0 [pid 299] umount2("./162", MNT_FORCE|UMOUNT_NOFOLLOW [pid 953] <... exit_group resumed>) = ? [pid 955] chdir("./165" [pid 953] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 955] <... chdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... openat resumed>) = 3 [pid 955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 955] setpgid(0, 0) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] newfstatat(3, "", [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 955] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 298] umount2("./164", MNT_FORCE|UMOUNT_NOFOLLOW [pid 955] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 955] <... write resumed>) = 4 [pid 299] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./160", MNT_FORCE|UMOUNT_NOFOLLOW [pid 955] close(3 [pid 298] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 955] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 955] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, executing program [pid 955] write(1, "executing program\n", 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 955] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 3 [pid 955] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 299] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 955] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./162/binderfs2", [pid 955] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 955] <... mount resumed>) = 0 [pid 299] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./162/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./164/binderfs2", [pid 955] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 955] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./164/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 955] exit_group(0) = ? [pid 297] <... umount2 resumed>) = 0 [pid 955] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4 [pid 298] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./160/binderfs2", [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./162/binderfs2" [pid 298] getdents64(4, [pid 297] umount2("./160/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./160/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./162/binderfs", [pid 298] rmdir("./164/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 299] unlink("./162/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] unlink("./164/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./164" [pid 297] newfstatat(4, "", [pid 300] umount2("./165", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(3 [pid 297] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 299] rmdir("./162" [pid 298] mkdir("./165", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] mkdir("./163", 0777 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./160/binderfs2" [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 300] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 956 attached [pid 956] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 956 [pid 956] <... set_robust_list resumed>) = 0 [pid 956] chdir("./165" [pid 299] <... mkdir resumed>) = 0 [pid 297] umount2("./160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 956] <... chdir resumed>) = 0 [pid 956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 956] setpgid(0, 0) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 956] <... openat resumed>) = 3 [pid 297] newfstatat(AT_FDCWD, "./160/binderfs", [pid 956] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 956] <... write resumed>) = 4 [pid 297] unlink("./160/binderfs" [pid 956] close(3) = 0 [pid 956] symlink("/dev/binderfs", "./binderfs") = 0 [pid 956] write(1, "executing program\n", 18) = 18 [pid 956] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 957 attached executing program [pid 297] <... unlink resumed>) = 0 [pid 957] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 957 [pid 297] getdents64(3, [pid 957] <... set_robust_list resumed>) = 0 [pid 956] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 957] chdir("./163" [pid 300] newfstatat(AT_FDCWD, "./165/binderfs2", [pid 297] close(3 [pid 957] <... chdir resumed>) = 0 [pid 956] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 956] <... mount resumed>) = 0 [pid 300] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./160" [pid 957] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 957] setpgid(0, 0) = 0 [pid 957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./165/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] mkdir("./161", 0777 [pid 300] newfstatat(4, "", [pid 957] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 957] write(3, "1000", 4 [pid 300] getdents64(4, [pid 957] <... write resumed>) = 4 [pid 957] close(3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 957] <... close resumed>) = 0 [pid 956] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 957] symlink("/dev/binderfs", "./binderfs" [pid 956] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 300] getdents64(4, [pid 956] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] close(4 [pid 957] <... symlink resumed>) = 0 [pid 956] <... exit_group resumed>) = ? [pid 300] <... close resumed>) = 0 ./strace-static-x86_64: Process 958 attached executing program [pid 957] write(1, "executing program\n", 18 [pid 956] +++ exited with 0 +++ [pid 957] <... write resumed>) = 18 [pid 957] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./165/binderfs2" [pid 958] set_robust_list(0x5555726b0660, 24) = 0 [pid 957] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 958 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=956, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 958] chdir("./161" [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 957] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 958] <... chdir resumed>) = 0 [pid 957] <... mount resumed>) = 0 [pid 300] umount2("./165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 957] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 958] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./165/binderfs", [pid 958] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 958] <... setpgid resumed>) = 0 [pid 300] unlink("./165/binderfs" [pid 957] exit_group(0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 957] <... exit_group resumed>) = ? [pid 958] <... openat resumed>) = 3 [pid 957] +++ exited with 0 +++ [pid 300] getdents64(3, [pid 958] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 958] <... write resumed>) = 4 [pid 298] umount2("./165", MNT_FORCE|UMOUNT_NOFOLLOW [pid 958] close(3 [pid 300] close(3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=957, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 958] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 958] symlink("/dev/binderfs", "./binderfs" [pid 300] rmdir("./165" [pid 298] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 958] <... symlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 958] write(1, "executing program\n", 18 [pid 300] mkdir("./166", 0777executing program [pid 298] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 958] <... write resumed>) = 18 [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./163", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 958] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./165/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 958] <... mkdirat resumed>) = 0 [pid 299] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./165/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, ./strace-static-x86_64: Process 959 attached [pid 299] <... openat resumed>) = 3 [pid 959] set_robust_list(0x5555726b0660, 24 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 959] <... set_robust_list resumed>) = 0 [pid 298] close(4 [pid 959] chdir("./166" [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./165/binderfs2" [pid 959] <... chdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 958] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 959 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 959] <... prctl resumed>) = 0 [pid 959] setpgid(0, 0 [pid 298] umount2("./165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 959] <... setpgid resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 958] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./165/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 299] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 959] write(3, "1000", 4 [pid 298] unlink("./165/binderfs" [pid 959] <... write resumed>) = 4 [pid 298] <... unlink resumed>) = 0 [pid 959] close(3) = 0 [pid 959] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 959] <... symlink resumed>) = 0 [pid 958] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 959] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./163/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 959] <... write resumed>) = 18 [pid 298] close(3 [pid 959] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... close resumed>) = 0 [pid 958] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 959] <... mkdirat resumed>) = 0 [pid 958] exit_group(0 [pid 299] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./165" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 958] <... exit_group resumed>) = ? [pid 299] openat(AT_FDCWD, "./163/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 959] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 299] <... openat resumed>) = 4 [pid 958] +++ exited with 0 +++ [pid 298] mkdir("./166", 0777 [pid 299] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 959] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] getdents64(4, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=958, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 959] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./161", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 960 attached [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 960] set_robust_list(0x5555726b0660, 24 [pid 299] close(4 [pid 297] <... openat resumed>) = 3 [pid 960] <... set_robust_list resumed>) = 0 [pid 959] exit_group(0 [pid 299] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 960 [pid 297] newfstatat(3, "", [pid 959] <... exit_group resumed>) = ? [pid 299] rmdir("./163/binderfs2" [pid 960] chdir("./166" [pid 959] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 960] <... chdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(3, [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 960] <... prctl resumed>) = 0 [pid 299] umount2("./163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 960] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 960] <... setpgid resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./163/binderfs", [pid 960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 960] <... openat resumed>) = 3 [pid 299] unlink("./163/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 960] write(3, "1000", 4 [pid 299] <... unlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./161/binderfs2", [pid 960] <... write resumed>) = 4 [pid 299] getdents64(3, [pid 960] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 960] <... close resumed>) = 0 [pid 299] close(3 [pid 960] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./161/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 960] <... symlink resumed>) = 0 executing program [pid 299] rmdir("./163" [pid 960] write(1, "executing program\n", 18 [pid 297] openat(AT_FDCWD, "./161/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... rmdir resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] mkdir("./164", 0777 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 960] <... write resumed>) = 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 960] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] umount2("./166", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(4, [pid 960] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, ./strace-static-x86_64: Process 961 attached 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 960] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 961] set_robust_list(0x5555726b0660, 24) = 0 [pid 960] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 297] close(4 [pid 961] chdir("./164" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 961 [pid 961] <... chdir resumed>) = 0 [pid 960] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] rmdir("./161/binderfs2" [pid 300] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 961] <... prctl resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 960] exit_group(0 [pid 297] umount2("./161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 961] setpgid(0, 0 [pid 960] <... exit_group resumed>) = ? [pid 961] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./166/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./166/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 960] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./161/binderfs", [pid 961] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 961] write(3, "1000", 4 [pid 297] unlink("./161/binderfs" [pid 961] <... write resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=960, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 961] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... unlink resumed>) = 0 [pid 961] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 297] getdents64(3, [pid 961] symlink("/dev/binderfs", "./binderfs" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 961] <... symlink resumed>) = 0 [pid 298] umount2("./166", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 298] getdents64(3, executing program [pid 961] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] rmdir("./161" [pid 298] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 961] <... write resumed>) = 18 [pid 300] rmdir("./166/binderfs2" [pid 961] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./166/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./166/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./166/binderfs2" [pid 297] mkdir("./162", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 961] <... mkdirat resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./166/binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 300] umount2("./166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 961] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(AT_FDCWD, "./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./166" [pid 300] unlink("./166/binderfs" [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 962 attached [pid 962] set_robust_list(0x5555726b0660, 24 [pid 300] <... unlink resumed>) = 0 [pid 962] <... set_robust_list resumed>) = 0 [pid 962] chdir("./162" [pid 298] mkdir("./167", 0777 [pid 962] <... chdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 961] <... mount resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 962 [pid 962] setpgid(0, 0) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 961] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] close(3 [pid 962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 962] <... openat resumed>) = 3 [pid 961] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 962] write(3, "1000", 4 [pid 300] rmdir("./166" [pid 962] <... write resumed>) = 4 [pid 962] close(3) = 0 [pid 962] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 963 attached ) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 963 executing program [pid 962] write(1, "executing program\n", 18) = 18 [pid 962] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 961] exit_group(0 [pid 963] set_robust_list(0x5555726b0660, 24 [pid 961] <... exit_group resumed>) = ? [pid 963] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./167", 0777 [pid 963] chdir("./167" [pid 962] <... mkdirat resumed>) = 0 [pid 962] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 961] +++ exited with 0 +++ [pid 962] <... mount resumed>) = 0 [pid 962] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... mkdir resumed>) = 0 [pid 962] <... openat resumed>) = 3 [pid 962] exit_group(0 [pid 963] <... chdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=961, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 962] <... exit_group resumed>) = ? [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 963] <... prctl resumed>) = 0 [pid 963] setpgid(0, 0 [pid 962] +++ exited with 0 +++ [pid 963] <... setpgid resumed>) = 0 [pid 963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 964 attached [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 964] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 964 [pid 964] <... set_robust_list resumed>) = 0 [pid 964] chdir("./167" [pid 963] <... openat resumed>) = 3 [pid 964] <... chdir resumed>) = 0 [pid 964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 964] setpgid(0, 0 [pid 963] write(3, "1000", 4 [pid 964] <... setpgid resumed>) = 0 [pid 963] <... write resumed>) = 4 [pid 964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 963] close(3) = 0 [pid 964] <... openat resumed>) = 3 [pid 963] symlink("/dev/binderfs", "./binderfs" [pid 964] write(3, "1000", 4) = 4 [pid 964] close(3) = 0 [pid 964] symlink("/dev/binderfs", "./binderfs" [pid 963] <... symlink resumed>) = 0 executing program executing program [pid 964] <... symlink resumed>) = 0 [pid 963] write(1, "executing program\n", 18 [pid 964] write(1, "executing program\n", 18) = 18 [pid 963] <... write resumed>) = 18 [pid 963] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 964] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 963] <... mkdirat resumed>) = 0 [pid 964] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 963] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 964] <... mount resumed>) = 0 [pid 964] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 963] <... mount resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 964] <... openat resumed>) = 3 [pid 964] exit_group(0 [pid 963] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 964] <... exit_group resumed>) = ? [pid 963] <... openat resumed>) = 3 [pid 297] umount2("./162", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 964] +++ exited with 0 +++ [pid 963] exit_group(0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=964, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 963] <... exit_group resumed>) = ? [pid 297] getdents64(3, [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 963] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./162/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./164", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./162/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./162/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(4, "", [pid 299] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 300] umount2("./167", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./167", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 299] newfstatat(AT_FDCWD, "./164/binderfs2", [pid 298] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./162/binderfs2" [pid 300] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 300] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./162/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] openat(AT_FDCWD, "./164/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 300] getdents64(3, [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... unlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./162") = 0 [pid 297] mkdir("./163", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 299] getdents64(4, [pid 300] <... umount2 resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./167/binderfs2", [pid 299] rmdir("./164/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./167/binderfs2", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 965 [pid 298] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./167/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 965 attached [pid 965] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] newfstatat(AT_FDCWD, "./164/binderfs", [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./167/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] unlink("./164/binderfs" [pid 965] chdir("./163" [pid 298] <... openat resumed>) = 4 [pid 965] <... chdir resumed>) = 0 [pid 965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... unlink resumed>) = 0 [pid 965] <... prctl resumed>) = 0 [pid 300] getdents64(4, [pid 298] newfstatat(4, "", [pid 965] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(3, [pid 300] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 965] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(4, [pid 965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] close(3 [pid 300] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 300] rmdir("./167/binderfs2" [pid 965] <... openat resumed>) = 3 [pid 299] rmdir("./164" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 965] write(3, "1000", 4) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] close(4 [pid 299] mkdir("./165", 0777 [pid 965] close(3) = 0 [pid 298] <... close resumed>) = 0 [pid 965] symlink("/dev/binderfs", "./binderfs" [pid 298] rmdir("./167/binderfs2" [pid 965] <... symlink resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 965] write(1, "executing program\n", 18 [pid 298] umount2("./167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 965] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./167/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 966 attached [pid 300] unlink("./167/binderfs" [pid 298] newfstatat(AT_FDCWD, "./167/binderfs", [pid 965] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 966 [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 966] set_robust_list(0x5555726b0660, 24 [pid 965] <... mkdirat resumed>) = 0 [pid 298] unlink("./167/binderfs" [pid 300] getdents64(3, [pid 966] <... set_robust_list resumed>) = 0 [pid 965] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... unlink resumed>) = 0 [pid 966] chdir("./165" [pid 300] close(3) = 0 [pid 300] rmdir("./167" [pid 966] <... chdir resumed>) = 0 [pid 965] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 965] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 966] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 966] setpgid(0, 0 [pid 965] <... openat resumed>) = 3 [pid 300] mkdir("./168", 0777 [pid 298] close(3 [pid 966] <... setpgid resumed>) = 0 [pid 965] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 965] <... exit_group resumed>) = ? [pid 298] <... close resumed>) = 0 ./strace-static-x86_64: Process 967 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 967 [pid 967] set_robust_list(0x5555726b0660, 24) = 0 [pid 965] +++ exited with 0 +++ [pid 298] rmdir("./167" [pid 967] chdir("./168" [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 967] <... chdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... restart_syscall resumed>) = 0 [pid 967] <... prctl resumed>) = 0 [pid 967] setpgid(0, 0) = 0 [pid 967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 966] <... openat resumed>) = 3 [pid 297] umount2("./163", MNT_FORCE|UMOUNT_NOFOLLOW [pid 967] <... openat resumed>) = 3 [pid 966] write(3, "1000", 4 [pid 298] mkdir("./168", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 967] write(3, "1000", 4 [pid 966] <... write resumed>) = 4 [pid 297] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 967] <... write resumed>) = 4 [pid 966] close(3 [pid 297] <... openat resumed>) = 3 [pid 966] <... close resumed>) = 0 [pid 967] close(3 [pid 966] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(3, "", [pid 967] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 967] symlink("/dev/binderfs", "./binderfs" [pid 297] getdents64(3, [pid 967] <... symlink resumed>) = 0 [pid 966] <... symlink resumed>) = 0 executing program [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 967] write(1, "executing program\n", 18 [pid 297] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 967] <... write resumed>) = 18 [pid 298] <... mkdir resumed>) = 0 executing program [pid 966] write(1, "executing program\n", 18 [pid 967] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 966] <... write resumed>) = 18 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = 0 [pid 967] <... mkdirat resumed>) = 0 [pid 966] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 967] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 966] <... mkdirat resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./163/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./163/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 968 attached [pid 297] openat(AT_FDCWD, "./163/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", [pid 968] set_robust_list(0x5555726b0660, 24 [pid 967] <... mount resumed>) = 0 [pid 966] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 968] <... set_robust_list resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 967] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 967] exit_group(0 [pid 966] <... mount resumed>) = 0 [pid 297] close(4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 968 [pid 297] <... close resumed>) = 0 [pid 967] <... exit_group resumed>) = ? [pid 297] rmdir("./163/binderfs2" [pid 968] chdir("./168" [pid 967] +++ exited with 0 +++ [pid 966] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 968] <... chdir resumed>) = 0 [pid 968] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 966] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 968] <... prctl resumed>) = 0 [pid 968] setpgid(0, 0 [pid 966] exit_group(0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 968] <... setpgid resumed>) = 0 [pid 966] <... exit_group resumed>) = ? [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] newfstatat(AT_FDCWD, "./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./163/binderfs") = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./163" [pid 966] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=966, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 968] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... rmdir resumed>) = 0 [pid 968] write(3, "1000", 4 [pid 297] mkdir("./164", 0777 [pid 968] <... write resumed>) = 4 [pid 968] close(3) = 0 [pid 968] symlink("/dev/binderfs", "./binderfs" [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... restart_syscall resumed>) = 0 [pid 968] <... symlink resumed>) = 0 executing program [pid 968] write(1, "executing program\n", 18) = 18 [pid 968] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./168", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 969 attached [pid 300] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 969] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 3 [pid 969] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 969 [pid 969] chdir("./164" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 969] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 969] setpgid(0, 0 [pid 300] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 968] <... mkdirat resumed>) = 0 [pid 969] <... setpgid resumed>) = 0 [pid 968] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = 0 [pid 969] <... openat resumed>) = 3 [pid 969] write(3, "1000", 4) = 4 [pid 969] close(3 [pid 300] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 969] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 969] symlink("/dev/binderfs", "./binderfs") = 0 [pid 968] <... mount resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./168/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 969] write(1, "executing program\n", 18) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 969] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] openat(AT_FDCWD, "./168/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 968] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... openat resumed>) = 4 [pid 968] exit_group(0 [pid 300] newfstatat(4, "", [pid 969] <... mkdirat resumed>) = 0 [pid 968] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 969] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 968] +++ exited with 0 +++ [pid 300] rmdir("./168/binderfs2" [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./165", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=968, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] umount2("./168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 969] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./168/binderfs", [pid 969] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 3 [pid 969] exit_group(0 [pid 300] unlink("./168/binderfs" [pid 298] umount2("./168", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 969] <... exit_group resumed>) = ? [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... openat resumed>) = 3 [pid 969] +++ exited with 0 +++ [pid 299] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=969, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] close(3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./168" [pid 299] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 299] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./169", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(AT_FDCWD, "./165/binderfs2", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./165/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] newfstatat(AT_FDCWD, "./168/binderfs2", ./strace-static-x86_64: Process 970 attached [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 970] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(4, [pid 298] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 970] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./168/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./164", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 970 [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 970] chdir("./169" [pid 297] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] newfstatat(4, "", [pid 970] <... chdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 970] <... prctl resumed>) = 0 [pid 298] getdents64(4, [pid 299] close(4 [pid 970] setpgid(0, 0 [pid 297] getdents64(3, [pid 970] <... setpgid resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] rmdir("./165/binderfs2" [pid 298] getdents64(4, [pid 297] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./164/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./164/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./164/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 970] <... openat resumed>) = 3 [pid 298] close(4 [pid 970] write(3, "1000", 4 [pid 299] umount2("./165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 970] <... write resumed>) = 4 [pid 298] <... close resumed>) = 0 [pid 970] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./168/binderfs2" [pid 970] <... close resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./165/binderfs", [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./164/binderfs2" [pid 970] symlink("/dev/binderfs", "./binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./164/binderfs", [pid 970] <... symlink resumed>) = 0 [pid 299] unlink("./165/binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./164/binderfs"executing program [pid 299] <... unlink resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 970] write(1, "executing program\n", 18 [pid 298] umount2("./168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 970] <... write resumed>) = 18 [pid 299] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./168/binderfs", [pid 297] close(3 [pid 970] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 299] rmdir("./165" [pid 298] unlink("./168/binderfs" [pid 297] rmdir("./164" [pid 299] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] mkdir("./165", 0777) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 970] <... mkdirat resumed>) = 0 [pid 299] mkdir("./166", 0777 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] close(3./strace-static-x86_64: Process 971 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 971 [pid 971] set_robust_list(0x5555726b0660, 24) = 0 [pid 971] chdir("./165" [pid 298] <... close resumed>) = 0 [pid 970] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] rmdir("./168" [pid 971] <... chdir resumed>) = 0 [pid 971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 971] setpgid(0, 0) = 0 [pid 971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 971] write(3, "1000", 4) = 4 [pid 971] close(3 [pid 970] <... mount resumed>) = 0 [pid 971] <... close resumed>) = 0 [pid 971] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 298] <... rmdir resumed>) = 0 [pid 971] write(1, "executing program\n", 18) = 18 [pid 971] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 ./strace-static-x86_64: Process 972 attached [pid 298] mkdir("./169", 0777 [pid 972] set_robust_list(0x5555726b0660, 24) = 0 [pid 972] chdir("./166" [pid 971] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 970] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 972 [pid 298] <... mkdir resumed>) = 0 [pid 972] <... chdir resumed>) = 0 [pid 970] <... openat resumed>) = 3 [pid 972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 972] setpgid(0, 0) = 0 [pid 972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 972] write(3, "1000", 4 [pid 971] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 972] <... write resumed>) = 4 [pid 972] close(3 [pid 971] <... openat resumed>) = 3 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 972] <... close resumed>) = 0 [pid 970] exit_group(0 [pid 972] symlink("/dev/binderfs", "./binderfs" [pid 971] exit_group(0 [pid 972] <... symlink resumed>) = 0 [pid 971] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 973 attached [pid 970] <... exit_group resumed>) = ? executing program [pid 973] set_robust_list(0x5555726b0660, 24 [pid 972] write(1, "executing program\n", 18 [pid 971] +++ exited with 0 +++ [pid 970] +++ exited with 0 +++ [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 973 [pid 973] <... set_robust_list resumed>) = 0 [pid 972] <... write resumed>) = 18 [pid 972] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 973] chdir("./169" [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=970, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 973] <... chdir resumed>) = 0 [pid 972] <... mkdirat resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 972] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 973] <... prctl resumed>) = 0 [pid 973] setpgid(0, 0) = 0 [pid 973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 972] <... mount resumed>) = 0 [pid 972] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 973] write(3, "1000", 4 [pid 972] <... openat resumed>) = 3 [pid 973] <... write resumed>) = 4 [pid 972] exit_group(0 [pid 973] close(3 [pid 972] <... exit_group resumed>) = ? [pid 973] <... close resumed>) = 0 [pid 973] symlink("/dev/binderfs", "./binderfs" [pid 297] <... restart_syscall resumed>) = 0 [pid 973] <... symlink resumed>) = 0 [pid 972] +++ exited with 0 +++ [pid 973] write(1, "executing program\n", 18executing program [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=972, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 973] <... write resumed>) = 18 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./165", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 973] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 973] <... mkdirat resumed>) = 0 [pid 297] newfstatat(3, "", [pid 973] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 973] <... mount resumed>) = 0 [pid 973] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 973] exit_group(0) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./165/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./165/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 973] +++ exited with 0 +++ [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] openat(AT_FDCWD, "./165/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./166", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 300] umount2("./169", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(3, [pid 297] rmdir("./165/binderfs2" [pid 300] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./169", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] unlink("./165/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./169/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./166/binderfs2", [pid 298] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./169/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 300] <... openat resumed>) = 4 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./165" [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 299] openat(AT_FDCWD, "./166/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 297] mkdir("./166", 0777 [pid 298] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./169/binderfs2" [pid 299] newfstatat(4, "", [pid 297] <... mkdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(AT_FDCWD, "./169/binderfs", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 974 attached [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./169/binderfs" [pid 299] getdents64(4, [pid 974] set_robust_list(0x5555726b0660, 24 [pid 298] newfstatat(AT_FDCWD, "./169/binderfs2", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 974 [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 974] <... set_robust_list resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(4 [pid 974] chdir("./166" [pid 300] getdents64(3, [pid 298] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... close resumed>) = 0 [pid 300] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 299] rmdir("./166/binderfs2" [pid 300] rmdir("./169" [pid 974] <... chdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./169/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./170", 0777 [pid 974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 974] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 974] setpgid(0, 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./166/binderfs", [pid 974] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, ./strace-static-x86_64: Process 975 attached [pid 974] <... openat resumed>) = 3 [pid 299] unlink("./166/binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 975] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 975 [pid 975] <... set_robust_list resumed>) = 0 [pid 974] write(3, "1000", 4 [pid 299] <... unlink resumed>) = 0 [pid 975] chdir("./170") = 0 [pid 975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 975] setpgid(0, 0) = 0 [pid 975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(4, [pid 974] <... write resumed>) = 4 [pid 299] getdents64(3, [pid 975] <... openat resumed>) = 3 [pid 975] write(3, "1000", 4 [pid 974] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 974] <... close resumed>) = 0 [pid 299] close(3 [pid 298] close(4 [pid 975] <... write resumed>) = 4 [pid 974] symlink("/dev/binderfs", "./binderfs" [pid 299] <... close resumed>) = 0 [pid 975] close(3 [pid 298] <... close resumed>) = 0 [pid 975] <... close resumed>) = 0 [pid 975] symlink("/dev/binderfs", "./binderfs") = 0 [pid 974] <... symlink resumed>) = 0 [pid 299] rmdir("./166" [pid 298] rmdir("./169/binderfs2"executing program [pid 975] write(1, "executing program\n", 18) = 18 [pid 975] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 974] write(1, "executing program\n", 18 executing program [pid 299] mkdir("./167", 0777 [pid 298] umount2("./169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 974] <... write resumed>) = 18 [pid 975] <... mkdirat resumed>) = 0 [pid 975] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 974] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 975] <... mount resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 975] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 975] exit_group(0) = ? [pid 974] <... mkdirat resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(AT_FDCWD, "./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./169/binderfs") = 0 [pid 975] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 974] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(3, ./strace-static-x86_64: Process 976 attached 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 976] set_robust_list(0x5555726b0660, 24 [pid 298] rmdir("./169" [pid 976] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 976 [pid 974] <... mount resumed>) = 0 [pid 974] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 974] exit_group(0) = ? [pid 976] chdir("./167") = 0 [pid 974] +++ exited with 0 +++ [pid 298] mkdir("./170", 0777 [pid 976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=974, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 976] <... prctl resumed>) = 0 [pid 976] setpgid(0, 0) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 976] <... openat resumed>) = 3 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./166", MNT_FORCE|UMOUNT_NOFOLLOW [pid 976] write(3, "1000", 4 [pid 300] umount2("./170", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 976] <... write resumed>) = 4 [pid 976] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 977 attached [pid 976] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 977 [pid 297] <... openat resumed>) = 3 [pid 977] set_robust_list(0x5555726b0660, 24 [pid 976] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", [pid 977] <... set_robust_list resumed>) = 0 [pid 976] <... symlink resumed>) = 0 [pid 300] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 977] chdir("./170") = 0 executing program [pid 976] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 976] <... write resumed>) = 18 [pid 300] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 977] <... prctl resumed>) = 0 [pid 976] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 977] setpgid(0, 0 [pid 976] <... mkdirat resumed>) = 0 [pid 300] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 977] <... setpgid resumed>) = 0 [pid 977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... umount2 resumed>) = 0 [pid 976] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 977] <... openat resumed>) = 3 [pid 977] write(3, "1000", 4 [pid 976] <... mount resumed>) = 0 [pid 300] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 977] <... write resumed>) = 4 [pid 977] close(3) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 977] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 977] <... symlink resumed>) = 0 [pid 976] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./170/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./166/binderfs2", [pid 976] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 977] write(1, "executing program\n", 18 [pid 976] exit_group(0 [pid 300] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./166/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 977] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 977] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 976] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./170/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./166/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 976] +++ exited with 0 +++ [pid 977] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=976, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 297] newfstatat(4, "", [pid 977] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./167", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 977] <... mount resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] close(4 [pid 297] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 299] newfstatat(3, "", [pid 297] rmdir("./166/binderfs2" [pid 977] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./170/binderfs2" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 977] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 299] getdents64(3, [pid 297] umount2("./166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 977] exit_group(0 [pid 300] umount2("./170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 977] <... exit_group resumed>) = ? [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./166/binderfs", [pid 977] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./170/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] unlink("./166/binderfs" [pid 300] unlink("./170/binderfs" [pid 299] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... unlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 299] newfstatat(AT_FDCWD, "./167/binderfs2", [pid 297] rmdir("./166" [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] rmdir("./170" [pid 299] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./167/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./167", 0777 [pid 299] <... openat resumed>) = 4 [pid 297] <... mkdir resumed>) = 0 [pid 299] newfstatat(4, "", [pid 300] mkdir("./171", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(4, ./strace-static-x86_64: Process 978 attached 0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 979 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 979 [pid 299] close(4 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 978 [pid 299] <... close resumed>) = 0 [pid 979] set_robust_list(0x5555726b0660, 24 [pid 978] set_robust_list(0x5555726b0660, 24 [pid 979] <... set_robust_list resumed>) = 0 [pid 299] rmdir("./167/binderfs2" [pid 978] <... set_robust_list resumed>) = 0 [pid 978] chdir("./171") = 0 [pid 978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 978] setpgid(0, 0) = 0 [pid 978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 979] chdir("./167" [pid 299] umount2("./167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 979] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 979] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./167/binderfs", [pid 979] <... prctl resumed>) = 0 [pid 978] <... openat resumed>) = 3 [pid 979] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 978] write(3, "1000", 4) = 4 [pid 978] close(3) = 0 [pid 979] <... setpgid resumed>) = 0 [pid 978] symlink("/dev/binderfs", "./binderfs" [pid 299] unlink("./167/binderfs" [pid 979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 978] <... symlink resumed>) = 0 [pid 978] write(1, "executing program\n", 18) = 18 [pid 978] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... unlink resumed>) = 0 executing program [pid 979] <... openat resumed>) = 3 [pid 979] write(3, "1000", 4 [pid 978] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, [pid 979] <... write resumed>) = 4 [pid 978] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 979] close(3) = 0 [pid 299] close(3 [pid 979] symlink("/dev/binderfs", "./binderfs" [pid 978] <... mount resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 978] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 978] exit_group(0) = ? [pid 979] <... symlink resumed>) = 0 [pid 299] rmdir("./167") = 0 [pid 978] +++ exited with 0 +++ [pid 979] write(1, "executing program\n", 18 executing program [pid 298] umount2("./170", MNT_FORCE|UMOUNT_NOFOLLOW [pid 979] <... write resumed>) = 18 [pid 299] mkdir("./168", 0777 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 979] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=978, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... openat resumed>) = 3 [pid 300] <... restart_syscall resumed>) = 0 [pid 300] umount2("./171", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 979] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(3, "", [pid 300] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 979] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 980 attached [pid 300] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 980] set_robust_list(0x5555726b0660, 24 [pid 979] <... mount resumed>) = 0 [pid 980] <... set_robust_list resumed>) = 0 [pid 979] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 980] chdir("./168" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 980 [pid 980] <... chdir resumed>) = 0 [pid 979] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./171/binderfs2", [pid 298] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 979] exit_group(0 [pid 980] <... prctl resumed>) = 0 [pid 979] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./171/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 980] setpgid(0, 0 [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 979] +++ exited with 0 +++ [pid 300] rmdir("./171/binderfs2" [pid 298] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 980] <... setpgid resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./170/binderfs2", [pid 980] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./167", MNT_FORCE|UMOUNT_NOFOLLOW [pid 980] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./171/binderfs", [pid 298] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 980] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 980] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 980] <... close resumed>) = 0 [pid 300] unlink("./171/binderfs" [pid 980] symlink("/dev/binderfs", "./binderfs" [pid 297] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./170/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 980] <... symlink resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 297] newfstatat(3, "", [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 executing program [pid 980] write(1, "executing program\n", 18 [pid 300] close(3 [pid 298] newfstatat(4, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 980] <... write resumed>) = 18 [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 980] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./171") = 0 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 980] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] mkdir("./172", 0777 [pid 298] getdents64(4, [pid 980] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] close(4 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 981 attached [pid 981] set_robust_list(0x5555726b0660, 24 [pid 980] <... mount resumed>) = 0 [pid 298] rmdir("./170/binderfs2" [pid 981] <... set_robust_list resumed>) = 0 [pid 981] chdir("./172" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 981 [pid 298] <... rmdir resumed>) = 0 [pid 981] <... chdir resumed>) = 0 [pid 297] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./167/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 981] <... prctl resumed>) = 0 [pid 981] setpgid(0, 0 [pid 298] newfstatat(AT_FDCWD, "./170/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 981] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 980] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] unlink("./170/binderfs" [pid 297] umount2("./167/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 981] <... openat resumed>) = 3 [pid 980] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 981] write(3, "1000", 4 [pid 980] exit_group(0 [pid 297] openat(AT_FDCWD, "./167/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 981] <... write resumed>) = 4 [pid 298] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 981] close(3 [pid 980] <... exit_group resumed>) = ? [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 981] <... close resumed>) = 0 [pid 980] +++ exited with 0 +++ [pid 981] symlink("/dev/binderfs", "./binderfs" [pid 298] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 981] <... symlink resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=980, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] rmdir("./170" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 981] write(1, "executing program\n", 18executing program [pid 298] <... rmdir resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 981] <... write resumed>) = 18 [pid 297] close(4) = 0 [pid 297] rmdir("./167/binderfs2" [pid 981] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./168", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./171", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 981] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 297] unlink("./167/binderfs" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 982 attached [pid 981] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 982] set_robust_list(0x5555726b0660, 24 [pid 297] close(3) = 0 [pid 297] rmdir("./167" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 982 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./168", 0777 [pid 981] <... mount resumed>) = 0 [pid 982] <... set_robust_list resumed>) = 0 [pid 299] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 982] chdir("./171" [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = 0 [pid 982] <... chdir resumed>) = 0 [pid 299] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 983 attached [pid 983] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 983 [pid 983] chdir("./168" [pid 982] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./168/binderfs2", [pid 981] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 983] <... chdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 982] setpgid(0, 0 [pid 983] <... prctl resumed>) = 0 [pid 982] <... setpgid resumed>) = 0 [pid 983] setpgid(0, 0 [pid 981] <... openat resumed>) = 3 [pid 299] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 983] <... setpgid resumed>) = 0 [pid 982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 981] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 981] <... exit_group resumed>) = ? [pid 299] openat(AT_FDCWD, "./168/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 983] <... openat resumed>) = 3 [pid 983] write(3, "1000", 4) = 4 [pid 983] close(3) = 0 [pid 983] symlink("/dev/binderfs", "./binderfs") = 0 [pid 983] write(1, "executing program\n", 18 [pid 981] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 982] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 982] write(3, "1000", 4 [pid 983] <... write resumed>) = 18 executing program [pid 982] <... write resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 983] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 982] close(3 [pid 299] getdents64(4, [pid 983] <... mkdirat resumed>) = 0 [pid 982] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 982] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./172", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 983] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 982] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 300] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] rmdir("./168/binderfs2" [pid 300] <... openat resumed>) = 3 [pid 983] <... mount resumed>) = 0 [pid 982] write(1, "executing program\n", 18 executing program [pid 300] newfstatat(3, "", [pid 299] <... rmdir resumed>) = 0 [pid 982] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 983] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(3, [pid 982] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 983] <... openat resumed>) = 3 [pid 983] exit_group(0) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 982] <... mkdirat resumed>) = 0 [pid 300] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./168/binderfs", [pid 983] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 982] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 299] unlink("./168/binderfs") = 0 [pid 300] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 982] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 982] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./172/binderfs2", [pid 299] close(3 [pid 982] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 982] exit_group(0) = ? [pid 299] <... close resumed>) = 0 [pid 300] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./168" [pid 982] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./172/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=982, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... openat resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] mkdir("./169", 0777 [pid 300] getdents64(4, [pid 298] umount2("./171", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(4, [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 984 attached [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 984] set_robust_list(0x5555726b0660, 24 [pid 300] close(4 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 984 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... restart_syscall resumed>) = 0 [pid 984] <... set_robust_list resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./172/binderfs2" [pid 298] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 984] chdir("./169" [pid 300] <... rmdir resumed>) = 0 [pid 984] <... chdir resumed>) = 0 [pid 300] umount2("./172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./168", MNT_FORCE|UMOUNT_NOFOLLOW [pid 984] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 984] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] newfstatat(AT_FDCWD, "./172/binderfs", [pid 984] setpgid(0, 0 [pid 298] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 984] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./172/binderfs" [pid 298] newfstatat(AT_FDCWD, "./171/binderfs2", [pid 297] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] getdents64(3, [pid 298] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 984] <... openat resumed>) = 3 [pid 300] close(3 [pid 298] openat(AT_FDCWD, "./171/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 984] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 984] <... write resumed>) = 4 [pid 300] rmdir("./172" [pid 298] newfstatat(4, "", [pid 984] close(3 [pid 297] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 984] <... close resumed>) = 0 [pid 300] mkdir("./173", 0777 [pid 298] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./168/binderfs2", [pid 984] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(4, [pid 297] umount2("./168/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 984] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 984] write(1, "executing program\n", 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./168/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 984] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 984] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 985 [pid 298] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] rmdir("./171/binderfs2"./strace-static-x86_64: Process 985 attached ) = 0 [pid 297] getdents64(4, [pid 985] set_robust_list(0x5555726b0660, 24 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 985] <... set_robust_list resumed>) = 0 [pid 984] <... mkdirat resumed>) = 0 [pid 297] close(4 [pid 985] chdir("./173" [pid 984] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 985] <... chdir resumed>) = 0 [pid 297] rmdir("./168/binderfs2" [pid 985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... rmdir resumed>) = 0 [pid 985] <... prctl resumed>) = 0 [pid 984] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 984] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(AT_FDCWD, "./171/binderfs", [pid 985] setpgid(0, 0) = 0 [pid 985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 984] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./171/binderfs" [pid 985] <... openat resumed>) = 3 [pid 984] exit_group(0 [pid 298] <... unlink resumed>) = 0 [pid 297] umount2("./168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 985] write(3, "1000", 4 [pid 984] <... exit_group resumed>) = ? [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 985] <... write resumed>) = 4 [pid 297] newfstatat(AT_FDCWD, "./168/binderfs", [pid 985] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 985] <... close resumed>) = 0 [pid 297] unlink("./168/binderfs" [pid 985] symlink("/dev/binderfs", "./binderfs" [pid 297] <... unlink resumed>) = 0 [pid 985] <... symlink resumed>) = 0 [pid 984] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=984, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... close resumed>) = 0 [pid 297] getdents64(3, [pid 298] rmdir("./171"executing program [pid 985] write(1, "executing program\n", 18 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 985] <... write resumed>) = 18 [pid 298] <... rmdir resumed>) = 0 [pid 297] close(3 [pid 985] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] mkdir("./172", 0777 [pid 297] <... close resumed>) = 0 [pid 985] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] rmdir("./168" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 986 attached [pid 986] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 986 [pid 986] <... set_robust_list resumed>) = 0 [pid 986] chdir("./172" [pid 985] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 986] <... chdir resumed>) = 0 [pid 985] <... mount resumed>) = 0 [pid 297] mkdir("./169", 0777 [pid 986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 986] setpgid(0, 0) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 985] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 986] write(3, "1000", 4 [pid 985] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 986] <... write resumed>) = 4 [pid 986] close(3./strace-static-x86_64: Process 987 attached ) = 0 [pid 987] set_robust_list(0x5555726b0660, 24 [pid 986] symlink("/dev/binderfs", "./binderfs" [pid 987] <... set_robust_list resumed>) = 0 executing program [pid 986] <... symlink resumed>) = 0 [pid 985] exit_group(0) = ? [pid 987] chdir("./169" [pid 986] write(1, "executing program\n", 18 [pid 985] +++ exited with 0 +++ [pid 987] <... chdir resumed>) = 0 [pid 986] <... write resumed>) = 18 [pid 987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 986] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 987] <... prctl resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 987] setpgid(0, 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 987 [pid 987] <... setpgid resumed>) = 0 [pid 986] <... mkdirat resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 986] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 987] <... openat resumed>) = 3 [pid 299] umount2("./169", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 986] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 987] write(3, "1000", 4 [pid 986] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 987] <... write resumed>) = 4 [pid 986] <... openat resumed>) = 3 [pid 987] close(3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 987] <... close resumed>) = 0 [pid 986] exit_group(0 [pid 299] getdents64(3, [pid 987] symlink("/dev/binderfs", "./binderfs" [pid 986] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 987] <... symlink resumed>) = 0 [pid 299] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 987] write(1, "executing program\n", 18 [pid 986] +++ exited with 0 +++ [pid 987] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 987] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(AT_FDCWD, "./169/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 987] <... mkdirat resumed>) = 0 [pid 299] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 987] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./169/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 987] <... mount resumed>) = 0 [pid 299] getdents64(4, [pid 987] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./172", MNT_FORCE|UMOUNT_NOFOLLOW [pid 987] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 987] exit_group(0 [pid 298] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 987] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] close(4) = 0 [pid 299] rmdir("./169/binderfs2" [pid 987] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./169/binderfs", [pid 300] umount2("./173", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./172/binderfs2", [pid 300] newfstatat(3, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./169/binderfs" [pid 298] openat(AT_FDCWD, "./172/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... unlink resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./169", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(3 [pid 297] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] rmdir("./169" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./170", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./173/binderfs2", [pid 298] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./173/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] rmdir("./172/binderfs2" [pid 297] newfstatat(AT_FDCWD, "./169/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 298] umount2("./172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./169/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 988 attached [pid 300] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./172/binderfs", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] openat(AT_FDCWD, "./169/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 988] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(4, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 988 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 988] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] unlink("./172/binderfs" [pid 297] newfstatat(4, "", [pid 988] chdir("./170" [pid 300] close(4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./169/binderfs2" [pid 300] <... close resumed>) = 0 [pid 988] <... chdir resumed>) = 0 [pid 300] rmdir("./173/binderfs2" [pid 988] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./169/binderfs", [pid 988] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 988] setpgid(0, 0 [pid 300] umount2("./173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(3 [pid 297] unlink("./169/binderfs" [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./172" [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./169" [pid 298] <... rmdir resumed>) = 0 [pid 988] <... setpgid resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./173/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./170", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] unlink("./173/binderfs" [pid 298] mkdir("./173", 0777 [pid 300] <... unlink resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... mkdir resumed>) = 0 [pid 988] <... openat resumed>) = 3 [pid 300] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 988] write(3, "1000", 4 [pid 300] close(3 [pid 988] <... write resumed>) = 4 ./strace-static-x86_64: Process 989 attached [pid 300] <... close resumed>) = 0 [pid 989] set_robust_list(0x5555726b0660, 24 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 989 ./strace-static-x86_64: Process 990 attached [pid 989] <... set_robust_list resumed>) = 0 [pid 989] chdir("./170") = 0 [pid 989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 989] setpgid(0, 0) = 0 [pid 988] close(3 [pid 300] rmdir("./173" [pid 989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 990] set_robust_list(0x5555726b0660, 24 [pid 989] <... openat resumed>) = 3 [pid 989] write(3, "1000", 4 [pid 300] <... rmdir resumed>) = 0 [pid 988] <... close resumed>) = 0 executing program [pid 990] <... set_robust_list resumed>) = 0 [pid 988] symlink("/dev/binderfs", "./binderfs" [pid 300] mkdir("./174", 0777 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 990 [pid 989] <... write resumed>) = 4 [pid 989] close(3) = 0 [pid 988] <... symlink resumed>) = 0 [pid 990] chdir("./173" [pid 989] symlink("/dev/binderfs", "./binderfs") = 0 [pid 989] write(1, "executing program\n", 18 [pid 300] <... mkdir resumed>) = 0 [pid 990] <... chdir resumed>) = 0 [pid 989] <... write resumed>) = 18 [pid 990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 989] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 988] write(1, "executing program\n", 18 executing program [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 990] <... prctl resumed>) = 0 [pid 988] <... write resumed>) = 18 [pid 990] setpgid(0, 0 [pid 988] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 990] <... setpgid resumed>) = 0 [pid 989] <... mkdirat resumed>) = 0 [pid 988] <... mkdirat resumed>) = 0 [pid 990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 989] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 990] <... openat resumed>) = 3 [pid 989] <... mount resumed>) = 0 [pid 990] write(3, "1000", 4./strace-static-x86_64: Process 991 attached ) = 4 [pid 988] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 991] set_robust_list(0x5555726b0660, 24 [pid 990] close(3 [pid 989] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 991 [pid 990] <... close resumed>) = 0 [pid 990] symlink("/dev/binderfs", "./binderfs" [pid 991] <... set_robust_list resumed>) = 0 [pid 989] <... openat resumed>) = 3 [pid 991] chdir("./174" [pid 990] <... symlink resumed>) = 0 [pid 989] exit_group(0 [pid 991] <... chdir resumed>) = 0 [pid 989] <... exit_group resumed>) = ? [pid 991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 990] write(1, "executing program\n", 18 [pid 989] +++ exited with 0 +++ [pid 988] <... mount resumed>) = 0 [pid 991] <... prctl resumed>) = 0 [pid 991] setpgid(0, 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 991] <... setpgid resumed>) = 0 executing program [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 990] <... write resumed>) = 18 [pid 990] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 991] <... openat resumed>) = 3 [pid 991] write(3, "1000", 4) = 4 [pid 991] close(3) = 0 [pid 991] symlink("/dev/binderfs", "./binderfs" [pid 990] <... mkdirat resumed>) = 0 [pid 991] <... symlink resumed>) = 0 executing program [pid 991] write(1, "executing program\n", 18) = 18 [pid 991] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 990] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 988] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 991] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 988] <... openat resumed>) = 3 [pid 990] <... mount resumed>) = 0 [pid 988] exit_group(0 [pid 991] <... mount resumed>) = 0 [pid 990] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 988] <... exit_group resumed>) = ? [pid 991] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./170", MNT_FORCE|UMOUNT_NOFOLLOW [pid 988] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 990] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 991] <... openat resumed>) = 3 [pid 297] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 991] exit_group(0 [pid 990] exit_group(0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=988, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 991] <... exit_group resumed>) = ? [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 990] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = 0 [pid 991] +++ exited with 0 +++ [pid 990] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=990, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./170/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./170/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] umount2("./174", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(4 [pid 300] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./170/binderfs2" [pid 300] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] newfstatat(AT_FDCWD, "./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./170/binderfs" [pid 299] <... restart_syscall resumed>) = 0 [pid 300] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./170" [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./170", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./171", 0777 [pid 299] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 300] newfstatat(AT_FDCWD, "./174/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 992 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 992 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 992] set_robust_list(0x5555726b0660, 24) = 0 [pid 992] chdir("./171" [pid 300] openat(AT_FDCWD, "./174/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 992] <... chdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(4, "", [pid 299] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 992] <... prctl resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 992] setpgid(0, 0 [pid 300] getdents64(4, [pid 992] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(4, [pid 299] newfstatat(AT_FDCWD, "./170/binderfs2", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] close(4 [pid 299] umount2("./170/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./174/binderfs2" [pid 299] openat(AT_FDCWD, "./170/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 992] <... openat resumed>) = 3 [pid 299] newfstatat(4, "", [pid 300] umount2("./174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 992] write(3, "1000", 4 [pid 299] getdents64(4, [pid 992] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 992] close(3 [pid 300] newfstatat(AT_FDCWD, "./174/binderfs", [pid 992] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 992] symlink("/dev/binderfs", "./binderfs" [pid 300] unlink("./174/binderfs" [pid 298] umount2("./173", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 992] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", [pid 300] <... unlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(3, executing program [pid 299] rmdir("./170/binderfs2" [pid 992] write(1, "executing program\n", 18 [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 992] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 300] close(3 [pid 298] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 992] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./173/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./174" [pid 298] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./173/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", [pid 992] <... mkdirat resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./173/binderfs2") = 0 [pid 300] mkdir("./175", 0777 [pid 299] umount2("./170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 992] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./170/binderfs", [pid 298] umount2("./173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./170/binderfs" [pid 298] newfstatat(AT_FDCWD, "./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./173/binderfs" [pid 299] <... unlink resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./173" [pid 992] <... mount resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./174", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 992] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 993 attached [pid 992] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./170"./strace-static-x86_64: Process 994 attached [pid 993] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 994 [pid 994] set_robust_list(0x5555726b0660, 24 [pid 993] <... set_robust_list resumed>) = 0 [pid 994] <... set_robust_list resumed>) = 0 [pid 993] chdir("./175" [pid 992] exit_group(0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 993 [pid 299] <... rmdir resumed>) = 0 [pid 994] chdir("./174" [pid 993] <... chdir resumed>) = 0 [pid 994] <... chdir resumed>) = 0 [pid 993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 992] <... exit_group resumed>) = ? [pid 994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 993] <... prctl resumed>) = 0 [pid 994] <... prctl resumed>) = 0 [pid 993] setpgid(0, 0 [pid 994] setpgid(0, 0) = 0 [pid 993] <... setpgid resumed>) = 0 [pid 994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 992] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] mkdir("./171", 0777 [pid 994] <... openat resumed>) = 3 [pid 993] <... openat resumed>) = 3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 994] write(3, "1000", 4) = 4 [pid 993] write(3, "1000", 4 [pid 994] close(3 [pid 993] <... write resumed>) = 4 [pid 299] <... mkdir resumed>) = 0 [pid 994] <... close resumed>) = 0 [pid 993] close(3 [pid 994] symlink("/dev/binderfs", "./binderfs" [pid 993] <... close resumed>) = 0 [pid 994] <... symlink resumed>) = 0 [pid 993] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 993] <... symlink resumed>) = 0 [pid 994] write(1, "executing program\n", 18executing program executing program ) = 18 [pid 994] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 993] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 995 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 995 [pid 993] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 995] set_robust_list(0x5555726b0660, 24) = 0 [pid 994] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 995] chdir("./171" [pid 994] <... mount resumed>) = 0 [pid 993] <... mkdirat resumed>) = 0 [pid 993] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 995] <... chdir resumed>) = 0 [pid 995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 995] setpgid(0, 0 [pid 994] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 995] <... setpgid resumed>) = 0 [pid 995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 994] <... openat resumed>) = 3 [pid 994] exit_group(0 [pid 995] <... openat resumed>) = 3 [pid 995] write(3, "1000", 4 [pid 994] <... exit_group resumed>) = ? [pid 995] <... write resumed>) = 4 [pid 994] +++ exited with 0 +++ [pid 995] close(3) = 0 [pid 993] <... mount resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=994, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 995] symlink("/dev/binderfs", "./binderfs" [pid 993] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 993] <... openat resumed>) = 3 [pid 995] <... symlink resumed>) = 0 [pid 993] exit_group(0) = ? executing program [pid 995] write(1, "executing program\n", 18) = 18 [pid 995] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 993] +++ exited with 0 +++ [pid 995] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=993, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./174", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 995] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 995] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./171", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 995] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 300] umount2("./175", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 995] exit_group(0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 995] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./174/binderfs2", [pid 297] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 995] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 298] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./174/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(3, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, [pid 297] newfstatat(AT_FDCWD, "./171/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(3, [pid 299] <... restart_syscall resumed>) = 0 [pid 298] getdents64(4, [pid 297] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./171", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 300] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./171/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./174/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] newfstatat(3, "", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./174/binderfs", [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(AT_FDCWD, "./175/binderfs2", [pid 299] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./174/binderfs" [pid 297] <... close resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] rmdir("./171/binderfs2" [pid 299] <... umount2 resumed>) = 0 [pid 300] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./174" [pid 300] openat(AT_FDCWD, "./175/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./171/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./171/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./175", 0777 [pid 297] newfstatat(AT_FDCWD, "./171/binderfs", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./171/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] getdents64(4, [pid 299] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(4, "", [pid 300] close(4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 300] rmdir("./175/binderfs2" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] unlink("./171/binderfs"./strace-static-x86_64: Process 996 attached [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 996] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 996] <... set_robust_list resumed>) = 0 [pid 300] umount2("./175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 996 [pid 297] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./171" [pid 996] chdir("./175" [pid 300] newfstatat(AT_FDCWD, "./175/binderfs", [pid 299] rmdir("./171/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./172", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 996] <... chdir resumed>) = 0 [pid 300] unlink("./175/binderfs" [pid 299] umount2("./171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 996] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./171/binderfs", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 996] <... setpgid resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] unlink("./171/binderfs" [pid 300] close(3./strace-static-x86_64: Process 997 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 997 [pid 997] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] <... close resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 997] chdir("./172") = 0 [pid 997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./175" [pid 299] getdents64(3, [pid 997] <... prctl resumed>) = 0 [pid 997] setpgid(0, 0) = 0 [pid 997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 996] <... openat resumed>) = 3 [pid 997] <... openat resumed>) = 3 [pid 997] write(3, "1000", 4) = 4 [pid 997] close(3) = 0 [pid 997] symlink("/dev/binderfs", "./binderfs" [pid 299] close(3 [pid 996] write(3, "1000", 4 [pid 300] mkdir("./176", 0777 [pid 996] <... write resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 997] <... symlink resumed>) = 0 [pid 996] close(3 [pid 299] rmdir("./171" [pid 997] write(1, "executing program\n", 18) = 18 [pid 997] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 996] <... close resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 executing program [pid 996] symlink("/dev/binderfs", "./binderfs" [pid 997] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 996] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 executing program [pid 996] write(1, "executing program\n", 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] mkdir("./172", 0777 [pid 996] <... write resumed>) = 18 [pid 299] <... mkdir resumed>) = 0 [pid 997] <... mount resumed>) = 0 [pid 996] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 997] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 ./strace-static-x86_64: Process 998 attached [pid 997] exit_group(0 [pid 998] set_robust_list(0x5555726b0660, 24) = 0 [pid 998] chdir("./176" [pid 997] <... exit_group resumed>) = ? [pid 996] <... mkdirat resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 998 [pid 998] <... chdir resumed>) = 0 [pid 998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 998] setpgid(0, 0) = 0 [pid 998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 999 attached ) = 3 [pid 997] +++ exited with 0 +++ [pid 996] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 999] set_robust_list(0x5555726b0660, 24 [pid 998] write(3, "1000", 4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=997, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 998] <... write resumed>) = 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 998] close(3) = 0 [pid 998] symlink("/dev/binderfs", "./binderfs") = 0 [pid 996] <... mount resumed>) = 0 executing program [pid 999] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 999 [pid 998] write(1, "executing program\n", 18) = 18 [pid 998] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 999] chdir("./172" [pid 996] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 999] <... chdir resumed>) = 0 [pid 998] <... mkdirat resumed>) = 0 [pid 998] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 998] <... mount resumed>) = 0 [pid 996] <... openat resumed>) = 3 [pid 999] <... prctl resumed>) = 0 [pid 999] setpgid(0, 0 [pid 998] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 999] <... setpgid resumed>) = 0 [pid 999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 998] <... openat resumed>) = 3 [pid 996] exit_group(0 [pid 999] <... openat resumed>) = 3 [pid 998] exit_group(0 [pid 996] <... exit_group resumed>) = ? [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./172", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 998] <... exit_group resumed>) = ? [pid 998] +++ exited with 0 +++ [pid 996] +++ exited with 0 +++ [pid 999] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 999] <... write resumed>) = 4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=998, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... openat resumed>) = 3 [pid 999] close(3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=996, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] newfstatat(3, "", [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 999] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 999] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./172/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 999] <... symlink resumed>) = 0 [pid 297] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 999] write(1, "executing program\n", 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 999] <... write resumed>) = 18 [pid 297] openat(AT_FDCWD, "./172/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./172/binderfs2") = 0 [pid 999] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./172/binderfs" [pid 999] <... mkdirat resumed>) = 0 [pid 999] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./172") = 0 [pid 297] mkdir("./173", 0777 [pid 999] <... mount resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 999] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 999] exit_group(0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./175", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1000 attached [pid 300] umount2("./176", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1000 [pid 1000] set_robust_list(0x5555726b0660, 24 [pid 999] <... exit_group resumed>) = ? [pid 300] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 3 [pid 1000] <... set_robust_list resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 999] +++ exited with 0 +++ [pid 300] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1000] chdir("./173" [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./175/binderfs2", [pid 1000] <... chdir resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./175/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1000] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1000] setpgid(0, 0 [pid 300] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1000] <... setpgid resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 1000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./175/binderfs2" [pid 300] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1000] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./175/binderfs" [pid 1000] write(3, "1000", 4 [pid 300] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 1000] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1000] close(3 [pid 300] newfstatat(AT_FDCWD, "./176/binderfs2", [pid 1000] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1000] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 1000] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./175"executing program [pid 1000] write(1, "executing program\n", 18 [pid 300] openat(AT_FDCWD, "./176/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./176", 0777 [pid 1000] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 4 [pid 1000] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 1000] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 1001 attached [pid 1001] set_robust_list(0x5555726b0660, 24 [pid 1000] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1001 [pid 1001] <... set_robust_list resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 1001] chdir("./176" [pid 300] rmdir("./176/binderfs2" [pid 1001] <... chdir resumed>) = 0 [pid 1001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1001] setpgid(0, 0) = 0 [pid 1001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 1001] <... openat resumed>) = 3 [pid 1000] <... mount resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] umount2("./176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1001] write(3, "1000", 4) = 4 [pid 1001] close(3) = 0 [pid 1001] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1000] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(AT_FDCWD, "./176/binderfs", [pid 299] umount2("./172", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./176/binderfs" [pid 299] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1001] write(1, "executing program\n", 18) = 18 [pid 1001] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1000] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 1001] <... mkdirat resumed>) = 0 [pid 1001] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1000] exit_group(0 [pid 299] newfstatat(3, "", [pid 1000] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1001] <... mount resumed>) = 0 [pid 1001] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1000] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1000, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1001] exit_group(0) = ? [pid 299] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1001] +++ exited with 0 +++ [pid 300] rmdir("./176" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... rmdir resumed>) = 0 [pid 300] mkdir("./177", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./172/binderfs2", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./172/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] openat(AT_FDCWD, "./172/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 1002 attached [pid 1002] set_robust_list(0x5555726b0660, 24 [pid 299] close(4 [pid 1002] <... set_robust_list resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1002] chdir("./177" [pid 299] rmdir("./172/binderfs2" [pid 1002] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1002 [pid 299] <... rmdir resumed>) = 0 [pid 1002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] umount2("./172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1002] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./172/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 1002] setpgid(0, 0) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./172" [pid 1002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./173", 0777 [pid 1002] write(3, "1000", 4) = 4 [pid 299] <... mkdir resumed>) = 0 [pid 1002] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1002] <... close resumed>) = 0 [pid 1002] symlink("/dev/binderfs", "./binderfs" [pid 298] <... restart_syscall resumed>) = 0 [pid 1002] <... symlink resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 1003 attached executing program [pid 1003] set_robust_list(0x5555726b0660, 24 [pid 1002] write(1, "executing program\n", 18 [pid 298] umount2("./176", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1003] <... set_robust_list resumed>) = 0 [pid 1002] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./173", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1002] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1003 [pid 298] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] newfstatat(3, "", [pid 297] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1003] chdir("./173" [pid 297] getdents64(3, [pid 298] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1002] <... mkdirat resumed>) = 0 [pid 1003] <... chdir resumed>) = 0 [pid 1003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1002] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1003] <... prctl resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1003] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1003] <... setpgid resumed>) = 0 [pid 297] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./176/binderfs2", [pid 1003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1003] <... openat resumed>) = 3 [pid 298] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./173/binderfs2", [pid 298] openat(AT_FDCWD, "./176/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 297] openat(AT_FDCWD, "./173/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(4, "", [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 298] rmdir("./176/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1003] write(3, "1000", 4 [pid 1002] <... mount resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 1003] <... write resumed>) = 4 [pid 1002] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1003] close(3) = 0 [pid 297] close(4 [pid 1003] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1002] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./173/binderfs2" [pid 1003] <... symlink resumed>) = 0 [pid 1002] exit_group(0 [pid 298] newfstatat(AT_FDCWD, "./176/binderfs", [pid 297] <... rmdir resumed>) = 0 executing program [pid 1003] write(1, "executing program\n", 18 [pid 1002] <... exit_group resumed>) = ? [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1003] <... write resumed>) = 18 [pid 298] unlink("./176/binderfs" [pid 297] umount2("./173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./173/binderfs", [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] unlink("./173/binderfs" [pid 1003] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1002] +++ exited with 0 +++ [pid 298] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 298] rmdir("./176") = 0 [pid 1003] <... mkdirat resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1002, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 300] umount2("./177", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./177", 0777 [pid 297] rmdir("./173" [pid 1003] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./174", 0777 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1003] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 1004 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1004 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1004] set_robust_list(0x5555726b0660, 24./strace-static-x86_64: Process 1005 attached ) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 1003] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1005] set_robust_list(0x5555726b0660, 24 [pid 1004] chdir("./177" [pid 1005] <... set_robust_list resumed>) = 0 [pid 1004] <... chdir resumed>) = 0 [pid 1003] <... openat resumed>) = 3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1005 [pid 1005] chdir("./174" [pid 1004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1004] <... prctl resumed>) = 0 [pid 1003] exit_group(0 [pid 1005] <... chdir resumed>) = 0 [pid 1004] setpgid(0, 0 [pid 1003] <... exit_group resumed>) = ? [pid 1004] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1005] setpgid(0, 0) = 0 [pid 1004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(AT_FDCWD, "./177/binderfs2", [pid 1005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 1005] write(3, "1000", 4) = 4 [pid 1005] close(3) = 0 [pid 1005] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1005] write(1, "executing program\n", 18) = 18 [pid 1005] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1003] +++ exited with 0 +++ [pid 1005] <... mkdirat resumed>) = 0 [pid 1004] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1004] write(3, "1000", 4 [pid 300] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1004] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1004] close(3 [pid 300] openat(AT_FDCWD, "./177/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1004] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 1004] symlink("/dev/binderfs", "./binderfs" [pid 1005] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1005] <... mount resumed>) = 0 [pid 1004] <... symlink resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1005] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1004] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 300] getdents64(4, [pid 1004] <... write resumed>) = 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1005] exit_group(0 [pid 1004] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 1005] <... exit_group resumed>) = ? [pid 1004] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./173", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1005] +++ exited with 0 +++ [pid 299] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1004] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... openat resumed>) = 3 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] close(4) = 0 [pid 300] rmdir("./177/binderfs2" [pid 1004] <... mount resumed>) = 0 [pid 299] newfstatat(3, "", [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./177/binderfs", [pid 1004] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./177/binderfs" [pid 1004] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 1004] exit_group(0 [pid 300] getdents64(3, [pid 299] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1004] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 299] newfstatat(AT_FDCWD, "./173/binderfs2", [pid 1004] +++ exited with 0 +++ [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] rmdir("./177" [pid 299] umount2("./173/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1004, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./173/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] mkdir("./178", 0777 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 300] <... mkdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./173/binderfs2" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1006 attached ) = -1 EINVAL (Invalid argument) [pid 1006] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1006 [pid 299] newfstatat(AT_FDCWD, "./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./173/binderfs" [pid 1006] <... set_robust_list resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 1006] chdir("./178" [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./173" [pid 1006] <... chdir resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 1006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] mkdir("./174", 0777 [pid 1006] setpgid(0, 0 [pid 299] <... mkdir resumed>) = 0 [pid 1006] <... setpgid resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 1007 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1007 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 1007] set_robust_list(0x5555726b0660, 24 [pid 1006] write(3, "1000", 4 [pid 1007] <... set_robust_list resumed>) = 0 [pid 1006] <... write resumed>) = 4 [pid 1007] chdir("./174" [pid 1006] close(3 [pid 298] umount2("./177", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1006] <... close resumed>) = 0 [pid 1007] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./174", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1006] symlink("/dev/binderfs", "./binderfs" [pid 298] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1007] <... prctl resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1007] setpgid(0, 0 [pid 1006] <... symlink resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] <... openat resumed>) = 3 executing program [pid 1006] write(1, "executing program\n", 18 [pid 1007] <... setpgid resumed>) = 0 [pid 1006] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(3, "", [pid 1007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1006] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1007] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, [pid 1006] <... mkdirat resumed>) = 0 [pid 1007] write(3, "1000", 4 [pid 298] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1007] <... write resumed>) = 4 [pid 1006] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1007] close(3 [pid 297] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1007] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1007] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1007] write(1, "executing program\n", 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 297] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1007] <... write resumed>) = 18 [pid 298] newfstatat(AT_FDCWD, "./177/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1007] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1007] <... mkdirat resumed>) = 0 [pid 1006] <... mount resumed>) = 0 [pid 298] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./174/binderfs2", [pid 1006] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1006] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./177/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1007] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1006] exit_group(0 [pid 298] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1007] <... mount resumed>) = 0 [pid 1006] <... exit_group resumed>) = ? [pid 298] newfstatat(4, "", [pid 297] openat(AT_FDCWD, "./174/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 297] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 1007] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1006] +++ exited with 0 +++ [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1007] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] close(4) = 0 [pid 298] rmdir("./177/binderfs2" [pid 297] rmdir("./174/binderfs2" [pid 1007] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1006, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1007] <... exit_group resumed>) = ? [pid 1007] +++ exited with 0 +++ [pid 300] umount2("./178", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./174/binderfs", [pid 298] newfstatat(AT_FDCWD, "./177/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./174/binderfs" [pid 300] newfstatat(3, "", [pid 298] unlink("./177/binderfs" [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./174", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] close(3 [pid 299] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] rmdir("./177" [pid 297] rmdir("./174" [pid 300] <... umount2 resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] mkdir("./178", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 297] mkdir("./175", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... mkdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./178/binderfs2", [pid 299] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 1008 attached [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./178/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1008] set_robust_list(0x5555726b0660, 24 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1008] <... set_robust_list resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./174/binderfs2", [pid 300] newfstatat(4, "", [pid 1008] chdir("./178" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1008 ./strace-static-x86_64: Process 1009 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1009 [pid 300] getdents64(4, [pid 1009] set_robust_list(0x5555726b0660, 24 [pid 1008] <... chdir resumed>) = 0 [pid 299] umount2("./174/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1009] <... set_robust_list resumed>) = 0 [pid 1008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1009] chdir("./175" [pid 1008] <... prctl resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1009] <... chdir resumed>) = 0 [pid 1009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1008] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] openat(AT_FDCWD, "./174/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1008] <... setpgid resumed>) = 0 [pid 300] close(4 [pid 299] <... openat resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 1009] <... prctl resumed>) = 0 [pid 1009] setpgid(0, 0 [pid 1008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1009] <... setpgid resumed>) = 0 [pid 1009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1009] write(3, "1000", 4) = 4 [pid 1009] close(3) = 0 [pid 1009] symlink("/dev/binderfs", "./binderfs"executing program [pid 299] newfstatat(4, "", [pid 300] rmdir("./178/binderfs2" [pid 1009] <... symlink resumed>) = 0 [pid 1008] <... openat resumed>) = 3 [pid 1009] write(1, "executing program\n", 18) = 18 [pid 1008] write(3, "1000", 4 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1008] <... write resumed>) = 4 [pid 300] umount2("./178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 1008] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1009] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1008] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./178/binderfs", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1009] <... mkdirat resumed>) = 0 [pid 1008] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 300] unlink("./178/binderfs" [pid 1009] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... unlink resumed>) = 0 [pid 1009] <... mount resumed>) = 0 [pid 1008] <... symlink resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 executing program [pid 1008] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1008] <... write resumed>) = 18 [pid 300] close(3 [pid 299] close(4 [pid 1009] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1008] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1009] <... openat resumed>) = 3 [pid 1009] exit_group(0) = ? [pid 300] rmdir("./178" [pid 299] rmdir("./174/binderfs2" [pid 1008] <... mkdirat resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 1009] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1008] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./179", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./174/binderfs", [pid 300] <... mkdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] unlink("./174/binderfs"./strace-static-x86_64: Process 1010 attached [pid 1008] <... mount resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 1010] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(3, [pid 1008] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1010] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1010 [pid 299] close(3) = 0 [pid 1008] <... openat resumed>) = 3 [pid 1008] exit_group(0) = ? [pid 1010] chdir("./179" [pid 299] rmdir("./174" [pid 1010] <... chdir resumed>) = 0 [pid 1010] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1008] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1008, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1010] <... prctl resumed>) = 0 [pid 299] mkdir("./175", 0777 [pid 1010] setpgid(0, 0 [pid 297] umount2("./175", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1010] <... setpgid resumed>) = 0 [pid 298] umount2("./178", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(3, "", [pid 299] <... mkdir resumed>) = 0 [pid 298] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1010] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(3, [pid 298] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1010] write(3, "1000", 4) = 4 [pid 298] <... umount2 resumed>) = 0 [pid 297] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1010] close(3./strace-static-x86_64: Process 1011 attached ) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1011 [pid 1011] set_robust_list(0x5555726b0660, 24 [pid 1010] symlink("/dev/binderfs", "./binderfs" [pid 298] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 1011] <... set_robust_list resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./178/binderfs2", [pid 1010] <... symlink resumed>) = 0 executing program [pid 1011] chdir("./175" [pid 1010] write(1, "executing program\n", 18 [pid 1011] <... chdir resumed>) = 0 [pid 1010] <... write resumed>) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1010] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1011] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./175/binderfs2", [pid 1011] setpgid(0, 0 [pid 298] openat(AT_FDCWD, "./178/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1011] <... setpgid resumed>) = 0 [pid 1010] <... mkdirat resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1010] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1011] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] openat(AT_FDCWD, "./175/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] getdents64(4, [pid 297] newfstatat(4, "", [pid 1011] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1011] <... write resumed>) = 4 [pid 1011] close(3 [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 1011] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1011] symlink("/dev/binderfs", "./binderfs" [pid 298] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1011] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 298] rmdir("./178/binderfs2" [pid 297] <... close resumed>) = 0 [pid 1011] write(1, "executing program\n", 18executing program [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./175/binderfs2" [pid 1011] <... write resumed>) = 18 [pid 1010] <... mount resumed>) = 0 [pid 1010] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1011] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1010] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 1010] exit_group(0 [pid 298] umount2("./178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./178/binderfs" [pid 297] umount2("./175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1010] <... exit_group resumed>) = ? [pid 298] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./175/binderfs", [pid 1011] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 297] unlink("./175/binderfs" [pid 1011] <... mount resumed>) = 0 [pid 1010] +++ exited with 0 +++ [pid 298] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./179", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./178" [pid 300] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 297] rmdir("./175" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 298] mkdir("./179", 0777 [pid 1011] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... mkdir resumed>) = 0 [pid 297] mkdir("./176", 0777 [pid 1011] <... openat resumed>) = 3 [pid 300] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 1011] exit_group(0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 1012 attached [pid 1011] <... exit_group resumed>) = ? [pid 300] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1013 attached [pid 1012] set_robust_list(0x5555726b0660, 24 [pid 1011] +++ exited with 0 +++ [pid 1013] set_robust_list(0x5555726b0660, 24 [pid 1012] <... set_robust_list resumed>) = 0 [pid 1013] <... set_robust_list resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1013] chdir("./176" [pid 1012] chdir("./179" [pid 300] newfstatat(AT_FDCWD, "./179/binderfs2", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1012 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1013 [pid 1013] <... chdir resumed>) = 0 [pid 1012] <... chdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1013] <... prctl resumed>) = 0 [pid 1012] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1013] setpgid(0, 0 [pid 300] openat(AT_FDCWD, "./179/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1012] setpgid(0, 0 [pid 1013] <... setpgid resumed>) = 0 [pid 1012] <... setpgid resumed>) = 0 [pid 300] close(4) = 0 [pid 1013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./179/binderfs2" [pid 1012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1013] <... openat resumed>) = 3 [pid 1012] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 300] umount2("./179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./179/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./179" [pid 1012] write(3, "1000", 4 [pid 1013] write(3, "1000", 4 [pid 1012] <... write resumed>) = 4 [pid 1013] <... write resumed>) = 4 [pid 1012] close(3 [pid 1013] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 1013] <... close resumed>) = 0 [pid 1012] <... close resumed>) = 0 [pid 1013] symlink("/dev/binderfs", "./binderfs" [pid 1012] symlink("/dev/binderfs", "./binderfs" [pid 300] mkdir("./180", 0777 [pid 1013] <... symlink resumed>) = 0 [pid 1012] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 executing program executing program [pid 1013] write(1, "executing program\n", 18 [pid 1012] write(1, "executing program\n", 18 [pid 1013] <... write resumed>) = 18 [pid 1012] <... write resumed>) = 18 [pid 1013] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1012] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1013] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 1014 attached [pid 1014] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1014 [pid 1014] <... set_robust_list resumed>) = 0 [pid 1014] chdir("./180" [pid 1012] <... mkdirat resumed>) = 0 [pid 1014] <... chdir resumed>) = 0 [pid 1014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1013] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1014] <... prctl resumed>) = 0 [pid 1014] setpgid(0, 0) = 0 executing program [pid 1012] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1014] write(3, "1000", 4) = 4 [pid 1014] close(3) = 0 [pid 1014] symlink("/dev/binderfs", "./binderfs" [pid 1013] <... mount resumed>) = 0 [pid 1014] <... symlink resumed>) = 0 [pid 1014] write(1, "executing program\n", 18) = 18 [pid 1014] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1012] <... mount resumed>) = 0 [pid 1014] <... mkdirat resumed>) = 0 [pid 1014] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... restart_syscall resumed>) = 0 [pid 1013] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1012] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./175", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1014] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1012] <... openat resumed>) = 3 [pid 1014] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1013] exit_group(0 [pid 299] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1012] exit_group(0 [pid 1014] exit_group(0) = ? [pid 299] <... openat resumed>) = 3 [pid 1013] <... exit_group resumed>) = ? [pid 1012] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 1014] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1014, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1013] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./176", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 1012] +++ exited with 0 +++ [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1012, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(3, [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./176/binderfs2", [pid 299] newfstatat(AT_FDCWD, "./175/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./175/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./175/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./176/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 299] newfstatat(4, "", [pid 300] umount2("./180", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(4, [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(3, "", [pid 299] getdents64(4, [pid 297] getdents64(4, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 299] close(4 [pid 297] close(4 [pid 299] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./175/binderfs2" [pid 297] rmdir("./176/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 300] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./175/binderfs", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./176/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./180/binderfs2", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./175/binderfs" [pid 297] unlink("./176/binderfs" [pid 300] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./180/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] getdents64(3, [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 300] newfstatat(4, "", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 300] getdents64(4, [pid 299] close(3 [pid 297] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./176" [pid 300] getdents64(4, [pid 299] rmdir("./175" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./177", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 300] close(4) = 0 [pid 299] mkdir("./176", 0777 [pid 298] umount2("./179", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./180/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... mkdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(3, "", ./strace-static-x86_64: Process 1015 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./180/binderfs", [pid 298] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 1016 attached [pid 1015] set_robust_list(0x5555726b0660, 24 [pid 300] unlink("./180/binderfs" [pid 298] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1015] <... set_robust_list resumed>) = 0 [pid 1016] set_robust_list(0x5555726b0660, 24 [pid 300] <... unlink resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1016 [pid 1015] chdir("./177" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1015 [pid 1016] <... set_robust_list resumed>) = 0 [pid 1016] chdir("./176" [pid 298] <... umount2 resumed>) = 0 [pid 1016] <... chdir resumed>) = 0 [pid 1016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1016] setpgid(0, 0) = 0 [pid 1015] <... chdir resumed>) = 0 [pid 300] getdents64(3, [pid 298] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1015] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(3 [pid 1015] setpgid(0, 0 [pid 298] newfstatat(AT_FDCWD, "./179/binderfs2", [pid 1015] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1016] <... openat resumed>) = 3 [pid 1015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./180" [pid 298] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1016] write(3, "1000", 4) = 4 [pid 1016] close(3) = 0 [pid 1016] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 1015] <... openat resumed>) = 3 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1016] write(1, "executing program\n", 18) = 18 [pid 1015] write(3, "1000", 4 [pid 300] mkdir("./181", 0777 [pid 298] openat(AT_FDCWD, "./179/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1016] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1015] <... write resumed>) = 4 [pid 298] <... openat resumed>) = 4 [pid 1015] close(3 [pid 298] newfstatat(4, "", [pid 1015] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1015] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(4, [pid 1016] <... mkdirat resumed>) = 0 [pid 1015] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... mkdir resumed>) = 0 [pid 1016] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(4, executing program [pid 1015] write(1, "executing program\n", 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1015] <... write resumed>) = 18 [pid 298] close(4./strace-static-x86_64: Process 1017 attached [pid 1015] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1017 [pid 298] <... close resumed>) = 0 [pid 1017] set_robust_list(0x5555726b0660, 24) = 0 [pid 1015] <... mkdirat resumed>) = 0 [pid 298] rmdir("./179/binderfs2" [pid 1017] chdir("./181" [pid 1016] <... mount resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 1016] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1015] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1017] <... chdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1016] <... openat resumed>) = 3 [pid 1015] <... mount resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./179/binderfs", [pid 1017] setpgid(0, 0 [pid 1016] exit_group(0) = ? [pid 1017] <... setpgid resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1016] +++ exited with 0 +++ [pid 298] unlink("./179/binderfs" [pid 1017] <... openat resumed>) = 3 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 1015] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1015] <... openat resumed>) = 3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1017] write(3, "1000", 4 [pid 298] close(3 [pid 1017] <... write resumed>) = 4 [pid 1015] exit_group(0 [pid 298] <... close resumed>) = 0 [pid 1017] close(3 [pid 1015] <... exit_group resumed>) = ? [pid 298] rmdir("./179" [pid 1017] <... close resumed>) = 0 [pid 1017] symlink("/dev/binderfs", "./binderfs" [pid 1015] +++ exited with 0 +++ [pid 1017] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 1017] write(1, "executing program\n", 18 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1017] <... write resumed>) = 18 [pid 298] mkdir("./180", 0777 [pid 1017] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 1018 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1018 [pid 1018] set_robust_list(0x5555726b0660, 24) = 0 [pid 1017] <... mkdirat resumed>) = 0 [pid 299] umount2("./176", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./177", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1018] chdir("./180") = 0 [pid 1018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1018] setpgid(0, 0) = 0 [pid 1018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1018] write(3, "1000", 4 [pid 299] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1017] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 3 [pid 1018] <... write resumed>) = 4 [pid 1018] close(3) = 0 [pid 1018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1018] write(1, "executing program\n", 18) = 18 [pid 1017] <... mount resumed>) = 0 [pid 299] newfstatat(3, "", executing program [pid 297] <... openat resumed>) = 3 [pid 1018] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] newfstatat(3, "", [pid 1018] <... mkdirat resumed>) = 0 [pid 1017] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] getdents64(3, [pid 1018] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1018] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1018] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1018] exit_group(0 [pid 1017] <... openat resumed>) = 3 [pid 1018] <... exit_group resumed>) = ? [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1017] exit_group(0 [pid 297] newfstatat(AT_FDCWD, "./177/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1017] <... exit_group resumed>) = ? [pid 1018] +++ exited with 0 +++ [pid 297] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1018, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 1017] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1017, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./176/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./176/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./176/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 297] openat(AT_FDCWD, "./177/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(4, "", [pid 299] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] getdents64(4, [pid 299] close(4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 299] rmdir("./176/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./177/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./176/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./176/binderfs" [pid 297] umount2("./177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 297] newfstatat(AT_FDCWD, "./177/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./176" [pid 297] unlink("./177/binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./177", 0777 [pid 297] <... unlink resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3 [pid 298] umount2("./180", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1019 attached [pid 298] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 1019] set_robust_list(0x5555726b0660, 24 [pid 297] rmdir("./177" [pid 1019] <... set_robust_list resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1019 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... rmdir resumed>) = 0 [pid 298] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1019] chdir("./177") = 0 [pid 1019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] mkdir("./178", 0777 [pid 1019] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1019] setpgid(0, 0) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./180/binderfs2", [pid 1019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... restart_syscall resumed>) = 0 [pid 1019] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1019] write(3, "1000", 4./strace-static-x86_64: Process 1020 attached ) = 4 [pid 1020] set_robust_list(0x5555726b0660, 24 [pid 1019] close(3 [pid 1020] <... set_robust_list resumed>) = 0 [pid 1019] <... close resumed>) = 0 [pid 1020] chdir("./178" [pid 1019] symlink("/dev/binderfs", "./binderfs" [pid 298] openat(AT_FDCWD, "./180/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1020] <... chdir resumed>) = 0 [pid 300] umount2("./181", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 4 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1020 [pid 1020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1019] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(4, "", [pid 1020] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1020] setpgid(0, 0 [pid 300] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 1020] <... setpgid resumed>) = 0 executing program [pid 1019] write(1, "executing program\n", 18 [pid 300] newfstatat(3, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1019] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 1019] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1020] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] close(4) = 0 [pid 300] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./180/binderfs2" [pid 1020] write(3, "1000", 4 [pid 1019] <... mkdirat resumed>) = 0 [pid 1020] <... write resumed>) = 4 [pid 1019] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 1020] close(3) = 0 [pid 1020] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] umount2("./180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) executing program [pid 298] newfstatat(AT_FDCWD, "./180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1020] write(1, "executing program\n", 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./180/binderfs" [pid 1020] <... write resumed>) = 18 [pid 300] newfstatat(AT_FDCWD, "./181/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 1020] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1019] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 1019] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1019] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./181/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] close(3 [pid 1020] <... mkdirat resumed>) = 0 [pid 1019] exit_group(0 [pid 300] <... openat resumed>) = 4 [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] rmdir("./180" [pid 1020] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1019] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 1020] <... mount resumed>) = 0 [pid 300] getdents64(4, [pid 298] mkdir("./181", 0777) = 0 [pid 1019] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./181/binderfs2") = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1019, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1020] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1021 attached [pid 1020] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./177", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(AT_FDCWD, "./181/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1021] set_robust_list(0x5555726b0660, 24) = 0 [pid 1020] exit_group(0 [pid 299] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 3 [pid 1020] <... exit_group resumed>) = ? [pid 300] unlink("./181/binderfs" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1021 [pid 1021] chdir("./181" [pid 1020] +++ exited with 0 +++ [pid 299] newfstatat(3, "", [pid 1021] <... chdir resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1021] <... prctl resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] close(3 [pid 1021] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 299] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./181" [pid 297] umount2("./178", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 1021] <... setpgid resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", [pid 300] mkdir("./182", 0777 [pid 1021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1021] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 1021] write(3, "1000", 4 [pid 299] newfstatat(AT_FDCWD, "./177/binderfs2", [pid 1021] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1022 attached [pid 1021] close(3 [pid 299] umount2("./177/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1021] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1022 [pid 297] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./178/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./178/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 1022] set_robust_list(0x5555726b0660, 24 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1022] <... set_robust_list resumed>) = 0 [pid 1021] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 1022] chdir("./182" [pid 299] openat(AT_FDCWD, "./177/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 1021] <... symlink resumed>) = 0 [pid 297] rmdir("./178/binderfs2"executing program [pid 1022] <... chdir resumed>) = 0 [pid 1021] write(1, "executing program\n", 18 [pid 299] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 1022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1021] <... write resumed>) = 18 [pid 299] newfstatat(4, "", [pid 1022] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1021] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1022] setpgid(0, 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1022] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(4 [pid 297] unlink("./178/binderfs" [pid 299] <... close resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 1022] <... openat resumed>) = 3 [pid 1021] <... mkdirat resumed>) = 0 [pid 299] rmdir("./177/binderfs2" [pid 297] getdents64(3, [pid 1021] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 1022] write(3, "1000", 4 [pid 299] umount2("./177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1022] <... write resumed>) = 4 [pid 297] close(3 [pid 1022] close(3) = 0 [pid 1021] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 1022] symlink("/dev/binderfs", "./binderfs" [pid 1021] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] newfstatat(AT_FDCWD, "./177/binderfs", [pid 297] rmdir("./178" [pid 1022] <... symlink resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 1021] <... openat resumed>) = 3 [pid 1022] write(1, "executing program\n", 18 [pid 297] <... rmdir resumed>) = 0 [pid 299] unlink("./177/binderfs" [pid 1022] <... write resumed>) = 18 [pid 1022] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1021] exit_group(0 [pid 299] <... unlink resumed>) = 0 [pid 297] mkdir("./179", 0777 [pid 1022] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./177" [pid 1022] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... rmdir resumed>) = 0 [pid 1021] <... exit_group resumed>) = ? [pid 297] <... mkdir resumed>) = 0 [pid 1022] <... mount resumed>) = 0 [pid 299] mkdir("./178", 0777 [pid 1021] +++ exited with 0 +++ [pid 1022] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1022] exit_group(0 [pid 299] <... mkdir resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1021, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1022] <... exit_group resumed>) = ? [pid 298] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 1023 attached [pid 1022] +++ exited with 0 +++ [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1023] set_robust_list(0x5555726b0660, 24 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1023] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 1024 attached [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1023 [pid 1023] chdir("./179" [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1024 [pid 1024] set_robust_list(0x5555726b0660, 24 [pid 1023] <... chdir resumed>) = 0 [pid 1024] <... set_robust_list resumed>) = 0 [pid 1023] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./182", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./181", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1024] chdir("./178" [pid 1023] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1024] <... chdir resumed>) = 0 [pid 1023] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 1023] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 298] newfstatat(3, "", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] getdents64(3, [pid 1024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1023] write(3, "1000", 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1023] <... write resumed>) = 4 [pid 1024] <... prctl resumed>) = 0 [pid 300] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1024] setpgid(0, 0) = 0 [pid 1023] close(3 [pid 298] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1023] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 1023] symlink("/dev/binderfs", "./binderfs" [pid 1024] <... openat resumed>) = 3 [pid 1024] write(3, "1000", 4 [pid 1023] <... symlink resumed>) = 0 [pid 1024] <... write resumed>) = 4 [pid 300] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1024] close(3) = 0 executing program [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1024] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(AT_FDCWD, "./182/binderfs2", [pid 298] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1023] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1024] <... symlink resumed>) = 0 [pid 1023] <... write resumed>) = 18 [pid 300] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./181/binderfs2", [pid 1024] write(1, "executing program\n", 18) = 18 [pid 1023] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1024] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1023] <... mkdirat resumed>) = 0 [pid 300] openat(AT_FDCWD, "./182/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 4 [pid 298] openat(AT_FDCWD, "./181/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1024] <... mkdirat resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 1023] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1024] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1023] <... mount resumed>) = 0 [pid 300] getdents64(4, [pid 298] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] getdents64(4, [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 298] close(4 [pid 1024] <... mount resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./182/binderfs2" [pid 298] <... close resumed>) = 0 [pid 1024] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1023] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 298] rmdir("./181/binderfs2" [pid 1023] <... openat resumed>) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 1024] <... openat resumed>) = 3 [pid 1024] exit_group(0 [pid 1023] exit_group(0 [pid 1024] <... exit_group resumed>) = ? [pid 1023] <... exit_group resumed>) = ? [pid 300] umount2("./182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1024] +++ exited with 0 +++ [pid 1023] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./182/binderfs", [pid 298] newfstatat(AT_FDCWD, "./181/binderfs", [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./182/binderfs" [pid 298] unlink("./181/binderfs" [pid 300] <... unlink resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 298] getdents64(3, [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 298] close(3 [pid 300] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] rmdir("./182") = 0 [pid 298] rmdir("./181" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1023, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... rmdir resumed>) = 0 [pid 299] umount2("./178", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./183", 0777) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./179", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./182", 0777 [pid 299] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 3 ./strace-static-x86_64: Process 1025 attached [pid 299] getdents64(3, [pid 297] newfstatat(3, "", [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1025 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 1026 attached [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1026] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1026 [pid 1026] <... set_robust_list resumed>) = 0 [pid 1026] chdir("./182" [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1026] <... chdir resumed>) = 0 [pid 1026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1026] setpgid(0, 0) = 0 [pid 1025] set_robust_list(0x5555726b0660, 24 [pid 297] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 299] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1025] <... set_robust_list resumed>) = 0 [pid 1026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1025] chdir("./183" [pid 1026] write(3, "1000", 4) = 4 [pid 1026] close(3) = 0 [pid 1026] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1026] <... symlink resumed>) = 0 [pid 1026] write(1, "executing program\n", 18) = 18 [pid 1026] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = 0 [pid 1025] <... chdir resumed>) = 0 [pid 1026] <... mkdirat resumed>) = 0 [pid 1025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./178/binderfs2", [pid 297] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1025] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1025] setpgid(0, 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1025] <... setpgid resumed>) = 0 [pid 299] umount2("./178/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1026] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./179/binderfs2", [pid 299] openat(AT_FDCWD, "./178/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1026] <... mount resumed>) = 0 [pid 1025] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", [pid 1025] write(3, "1000", 4 [pid 297] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 1025] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1026] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1025] close(3 [pid 297] openat(AT_FDCWD, "./179/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1026] <... openat resumed>) = 3 [pid 1026] exit_group(0 [pid 1025] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 1025] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(4, [pid 297] newfstatat(4, "", [pid 1026] <... exit_group resumed>) = ? [pid 1026] +++ exited with 0 +++ [pid 1025] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1026, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>executing program [pid 1025] write(1, "executing program\n", 18) = 18 [pid 1025] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] close(4 [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 1025] <... mkdirat resumed>) = 0 [pid 299] rmdir("./178/binderfs2" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1025] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./179/binderfs2" [pid 299] newfstatat(AT_FDCWD, "./178/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./178/binderfs" [pid 297] umount2("./179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1025] <... mount resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 1025] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(AT_FDCWD, "./179/binderfs", [pid 299] close(3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1025] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 297] unlink("./179/binderfs" [pid 299] rmdir("./178" [pid 1025] exit_group(0 [pid 297] <... unlink resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 299] mkdir("./179", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1025] <... exit_group resumed>) = ? [pid 298] <... restart_syscall resumed>) = 0 [pid 1025] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 297] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1025, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./182", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./179" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1027 attached [pid 300] umount2("./183", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1027] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1027] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1027 [pid 297] mkdir("./180", 0777 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", [pid 1027] chdir("./179" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(3, "", [pid 1027] <... chdir resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 1027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(3, [pid 1027] <... prctl resumed>) = 0 [pid 300] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1027] setpgid(0, 0 [pid 298] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1028 attached ) = 0 [pid 1028] set_robust_list(0x5555726b0660, 24 [pid 1027] <... setpgid resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1028 [pid 1028] <... set_robust_list resumed>) = 0 [pid 1028] chdir("./180" [pid 1027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1028] <... chdir resumed>) = 0 [pid 298] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1028] <... prctl resumed>) = 0 [pid 1027] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./182/binderfs2", [pid 1028] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./183/binderfs2", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1028] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1027] write(3, "1000", 4 [pid 300] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1028] <... openat resumed>) = 3 [pid 1027] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./182/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1027] close(3 [pid 300] openat(AT_FDCWD, "./183/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1028] write(3, "1000", 4 [pid 300] <... openat resumed>) = 4 [pid 298] <... openat resumed>) = 4 [pid 1028] <... write resumed>) = 4 [pid 1027] <... close resumed>) = 0 [pid 300] newfstatat(4, "", [pid 298] newfstatat(4, "", [pid 1028] close(3 [pid 1027] symlink("/dev/binderfs", "./binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1028] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 298] getdents64(4, [pid 1028] symlink("/dev/binderfs", "./binderfs" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1028] <... symlink resumed>) = 0 [pid 1027] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, executing program 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1028] write(1, "executing program\n", 18 [pid 298] close(4 [pid 1028] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 1028] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] rmdir("./182/binderfs2"executing program [pid 300] getdents64(4, [pid 1027] write(1, "executing program\n", 18 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1027] <... write resumed>) = 18 [pid 300] close(4 [pid 1028] <... mkdirat resumed>) = 0 [pid 1027] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] rmdir("./183/binderfs2" [pid 1028] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 1027] <... mkdirat resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./182/binderfs" [pid 1027] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... unlink resumed>) = 0 [pid 300] umount2("./183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1028] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 1028] exit_group(0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 1028] <... exit_group resumed>) = ? [pid 298] rmdir("./182" [pid 1027] <... mount resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./183/binderfs", [pid 1027] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] unlink("./183/binderfs" [pid 1028] +++ exited with 0 +++ [pid 1027] <... openat resumed>) = 3 [pid 300] <... unlink resumed>) = 0 [pid 1027] exit_group(0 [pid 300] getdents64(3, [pid 298] mkdir("./183", 0777 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1027] <... exit_group resumed>) = ? [pid 300] close(3 [pid 298] <... mkdir resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... close resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1029 attached , child_tidptr=0x5555726b0650) = 1029 [pid 1029] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] rmdir("./183" [pid 1029] chdir("./183") = 0 [pid 1029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1029] setpgid(0, 0) = 0 [pid 1029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... rmdir resumed>) = 0 [pid 1029] <... openat resumed>) = 3 [pid 1029] write(3, "1000", 4) = 4 [pid 1029] close(3) = 0 [pid 1029] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 300] mkdir("./184", 0777 [pid 1029] write(1, "executing program\n", 18) = 18 [pid 1029] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 1027] +++ exited with 0 +++ [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... restart_syscall resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1027, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1029] <... mkdirat resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1029] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 1030 attached ) = 0 [pid 297] umount2("./180", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1030] set_robust_list(0x5555726b0660, 24) = 0 [pid 1030] chdir("./184") = 0 [pid 1029] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1030 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1029] <... openat resumed>) = 3 [pid 1030] <... prctl resumed>) = 0 [pid 297] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1030] setpgid(0, 0 [pid 1029] exit_group(0 [pid 297] <... openat resumed>) = 3 [pid 1030] <... setpgid resumed>) = 0 [pid 1029] <... exit_group resumed>) = ? [pid 297] newfstatat(3, "", [pid 1030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1029] +++ exited with 0 +++ [pid 297] getdents64(3, [pid 1030] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1030] write(3, "1000", 4 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1029, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1030] <... write resumed>) = 4 [pid 1030] close(3) = 0 [pid 1030] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 1030] write(1, "executing program\n", 18) = 18 [pid 1030] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 1030] <... mkdirat resumed>) = 0 [pid 1030] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1030] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./180/binderfs2", [pid 1030] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1030] <... openat resumed>) = 3 [pid 1030] exit_group(0) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./180/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1030] +++ exited with 0 +++ [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... close resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./180/binderfs2" [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] umount2("./183", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./179", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./180/binderfs", [pid 299] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... openat resumed>) = 3 [pid 297] unlink("./180/binderfs" [pid 298] newfstatat(AT_FDCWD, "./183/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... unlink resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./183/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 299] getdents64(3, [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] close(4 [pid 297] close(3 [pid 299] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./183/binderfs2" [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./180" [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] umount2("./183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./183/binderfs", [pid 300] umount2("./184", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./183/binderfs" [pid 300] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] mkdir("./181", 0777 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] getdents64(3, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] close(3) = 0 [pid 300] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./183" [pid 299] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] newfstatat(AT_FDCWD, "./179/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] umount2("./179/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./184", 0777 [pid 300] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./179/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1031 attached [pid 300] newfstatat(AT_FDCWD, "./184/binderfs2", [pid 299] <... openat resumed>) = 4 [pid 1031] set_robust_list(0x5555726b0660, 24 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(4, "", [pid 1031] <... set_robust_list resumed>) = 0 [pid 300] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1031 ./strace-static-x86_64: Process 1032 attached [pid 1031] chdir("./181" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 1031] <... chdir resumed>) = 0 [pid 300] openat(AT_FDCWD, "./184/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1032] set_robust_list(0x5555726b0660, 24 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(4, [pid 1032] <... set_robust_list resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] close(4 [pid 1032] chdir("./184" [pid 1031] <... prctl resumed>) = 0 [pid 300] newfstatat(4, "", [pid 1031] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1032 [pid 1031] <... setpgid resumed>) = 0 [pid 300] getdents64(4, [pid 1031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1032] <... chdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] rmdir("./179/binderfs2" [pid 1032] <... prctl resumed>) = 0 [pid 1031] <... openat resumed>) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1031] write(3, "1000", 4 [pid 300] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 1032] setpgid(0, 0 [pid 300] <... close resumed>) = 0 [pid 1031] <... write resumed>) = 4 [pid 300] rmdir("./184/binderfs2" [pid 1032] <... setpgid resumed>) = 0 [pid 1031] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1031] <... close resumed>) = 0 [pid 1032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1031] symlink("/dev/binderfs", "./binderfs" [pid 1032] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1031] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./184/binderfs", [pid 1032] write(3, "1000", 4 [pid 299] newfstatat(AT_FDCWD, "./179/binderfs", [pid 1032] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1032] close(3) = 0 executing program [pid 1031] write(1, "executing program\n", 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./179/binderfs" [pid 1032] symlink("/dev/binderfs", "./binderfs" [pid 1031] <... write resumed>) = 18 [pid 300] unlink("./184/binderfs" [pid 1031] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... unlink resumed>) = 0 [pid 1032] <... symlink resumed>) = 0 executing program [pid 1032] write(1, "executing program\n", 18 [pid 1031] <... mkdirat resumed>) = 0 [pid 300] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 1032] <... write resumed>) = 18 [pid 299] getdents64(3, [pid 1032] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./184" [pid 1032] <... mkdirat resumed>) = 0 [pid 1031] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 299] close(3) = 0 [pid 1032] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] rmdir("./179" [pid 1031] <... mount resumed>) = 0 [pid 300] mkdir("./185", 0777) = 0 [pid 1031] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] mkdir("./180", 0777 [pid 1031] exit_group(0 [pid 299] <... mkdir resumed>) = 0 [pid 1031] <... exit_group resumed>) = ? [pid 1032] <... mount resumed>) = 0 [pid 1031] +++ exited with 0 +++ [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1033 attached [pid 1033] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1033 [pid 1033] <... set_robust_list resumed>) = 0 [pid 1033] chdir("./185"./strace-static-x86_64: Process 1034 attached ) = 0 [pid 1034] set_robust_list(0x5555726b0660, 24 [pid 1033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1034] <... set_robust_list resumed>) = 0 [pid 1033] setpgid(0, 0 [pid 1034] chdir("./180" [pid 1032] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1034 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1031, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1034] <... chdir resumed>) = 0 [pid 1033] <... setpgid resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1032] <... openat resumed>) = 3 [pid 1034] <... prctl resumed>) = 0 [pid 1033] <... openat resumed>) = 3 [pid 297] <... restart_syscall resumed>) = 0 [pid 1034] setpgid(0, 0 [pid 1032] exit_group(0) = ? [pid 1034] <... setpgid resumed>) = 0 [pid 1033] write(3, "1000", 4 [pid 1034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1033] <... write resumed>) = 4 [pid 297] umount2("./181", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1034] <... openat resumed>) = 3 [pid 1033] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1033] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1034] write(3, "1000", 4 [pid 1033] symlink("/dev/binderfs", "./binderfs" [pid 1034] <... write resumed>) = 4 [pid 1033] <... symlink resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 1034] close(3) = 0 [pid 1034] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(3, "", [pid 1034] <... symlink resumed>) = 0 executing program [pid 1033] write(1, "executing program\n", 18 [pid 1032] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1033] <... write resumed>) = 18 [pid 297] getdents64(3, executing program [pid 1034] write(1, "executing program\n", 18 [pid 1033] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1034] <... write resumed>) = 18 [pid 1033] <... mkdirat resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1034] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1033] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = 0 [pid 1034] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1034] <... mount resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1033] <... mount resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./181/binderfs2", [pid 1033] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1033] <... openat resumed>) = 3 [pid 297] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1034] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1034] <... openat resumed>) = 3 [pid 1033] exit_group(0 [pid 1034] exit_group(0 [pid 1033] <... exit_group resumed>) = ? [pid 297] openat(AT_FDCWD, "./181/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1034] <... exit_group resumed>) = ? [pid 1034] +++ exited with 0 +++ [pid 297] <... openat resumed>) = 4 [pid 1033] +++ exited with 0 +++ [pid 297] newfstatat(4, "", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1033, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./184", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] getdents64(4, [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./180", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 300] umount2("./185", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./184/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./184/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 3 [pid 297] rmdir("./181/binderfs2" [pid 300] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] newfstatat(3, "", [pid 298] close(4 [pid 299] getdents64(3, [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./184/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./181/binderfs", [pid 300] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./184/binderfs" [pid 299] newfstatat(AT_FDCWD, "./180/binderfs2", [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] unlink("./181/binderfs" [pid 298] rmdir("./184" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] mkdir("./185", 0777 [pid 299] umount2("./180/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./185/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] openat(AT_FDCWD, "./180/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 297] close(3 [pid 299] <... openat resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] openat(AT_FDCWD, "./185/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 297] rmdir("./181" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1035 ./strace-static-x86_64: Process 1035 attached [pid 1035] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 1035] chdir("./185") = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] newfstatat(4, "", [pid 299] getdents64(4, [pid 297] mkdir("./182", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, [pid 299] close(4 [pid 1035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 1035] setpgid(0, 0) = 0 [pid 1035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 1035] write(3, "1000", 4) = 4 [pid 1035] close(3) = 0 [pid 1035] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 300] getdents64(4, [pid 299] rmdir("./180/binderfs2" [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1035] write(1, "executing program\n", 18) = 18 [pid 1035] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 300] close(4 [pid 1035] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 1036 attached [pid 300] <... close resumed>) = 0 [pid 299] umount2("./180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./185/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1036] set_robust_list(0x5555726b0660, 24 [pid 1035] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1036] <... set_robust_list resumed>) = 0 [pid 1036] chdir("./182" [pid 1035] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./180/binderfs", [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1036 [pid 1036] <... chdir resumed>) = 0 [pid 300] umount2("./185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./180/binderfs" [pid 300] newfstatat(AT_FDCWD, "./185/binderfs", [pid 1036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1036] setpgid(0, 0 [pid 1035] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1036] <... setpgid resumed>) = 0 [pid 1036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1035] <... openat resumed>) = 3 [pid 300] unlink("./185/binderfs" [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1036] <... openat resumed>) = 3 [pid 1035] exit_group(0 [pid 300] <... unlink resumed>) = 0 [pid 299] close(3 [pid 1035] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 299] <... close resumed>) = 0 [pid 1036] write(3, "1000", 4 [pid 1035] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./180" [pid 300] close(3 [pid 1036] <... write resumed>) = 4 [pid 1036] close(3) = 0 [pid 1036] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 1036] <... symlink resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1035, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 1036] write(1, "executing program\n", 18) = 18 [pid 1036] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./185" [pid 299] mkdir("./181", 0777 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... rmdir resumed>) = 0 [pid 1036] <... mkdirat resumed>) = 0 [pid 1036] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... mkdir resumed>) = 0 [pid 300] mkdir("./186", 0777 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1036] <... mount resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 1036] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1036] exit_group(0) = ? ./strace-static-x86_64: Process 1037 attached [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1037 [pid 1037] set_robust_list(0x5555726b0660, 24 [pid 1036] +++ exited with 0 +++ [pid 1037] <... set_robust_list resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1037] chdir("./181") = 0 [pid 1037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1037] setpgid(0, 0) = 0 [pid 1037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 1038 attached ) = 3 [pid 1038] set_robust_list(0x5555726b0660, 24 [pid 298] umount2("./185", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] <... set_robust_list resumed>) = 0 [pid 1037] write(3, "1000", 4 [pid 1038] chdir("./186" [pid 1037] <... write resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1038] <... chdir resumed>) = 0 [pid 1037] close(3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1038 [pid 298] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1037] <... close resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 1038] <... prctl resumed>) = 0 [pid 1037] symlink("/dev/binderfs", "./binderfs" [pid 298] newfstatat(3, "", [pid 1038] setpgid(0, 0 [pid 1037] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1038] <... setpgid resumed>) = 0 [pid 1038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(3, executing program [pid 1038] <... openat resumed>) = 3 [pid 1037] write(1, "executing program\n", 18) = 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1038] write(3, "1000", 4 [pid 1037] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] <... write resumed>) = 4 [pid 1038] close(3 [pid 1037] <... mkdirat resumed>) = 0 [pid 1038] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./185/binderfs2", [pid 297] umount2("./182", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] <... symlink resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1037] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1038] write(1, "executing program\n", 18executing program [pid 1037] <... mount resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1038] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 3 [pid 1038] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] openat(AT_FDCWD, "./185/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 4 [pid 297] getdents64(3, [pid 298] newfstatat(4, "", [pid 1038] <... mkdirat resumed>) = 0 [pid 1037] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] getdents64(4, [pid 297] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1037] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = 0 [pid 1037] exit_group(0) = ? [pid 1037] +++ exited with 0 +++ [pid 298] getdents64(4, [pid 297] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1038] <... mount resumed>) = 0 [pid 298] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./182/binderfs2", [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] rmdir("./185/binderfs2" [pid 1038] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] <... rmdir resumed>) = 0 [pid 1038] exit_group(0) = ? [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] umount2("./185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1038] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./181", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./185/binderfs", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] openat(AT_FDCWD, "./182/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] unlink("./185/binderfs" [pid 299] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 4 [pid 299] newfstatat(3, "", [pid 298] <... unlink resumed>) = 0 [pid 297] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 298] rmdir("./185" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./181/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./181/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./181/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] <... rmdir resumed>) = 0 [pid 297] close(4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./181/binderfs2" [pid 297] <... close resumed>) = 0 [pid 298] mkdir("./186", 0777 [pid 297] rmdir("./182/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./181/binderfs", [pid 297] <... rmdir resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./181/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./181" [pid 297] umount2("./182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./182/binderfs", [pid 299] mkdir("./182", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 1039 attached [pid 297] unlink("./182/binderfs" [pid 1039] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 1039] chdir("./186" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1039] <... chdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1039 [pid 297] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 1040 attached [pid 1040] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1040 [pid 1040] <... set_robust_list resumed>) = 0 [pid 297] getdents64(3, [pid 1039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1040] chdir("./182" [pid 1039] <... prctl resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1040] <... chdir resumed>) = 0 [pid 1039] setpgid(0, 0 [pid 1040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1040] setpgid(0, 0) = 0 [pid 1040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1039] <... setpgid resumed>) = 0 [pid 297] close(3 [pid 1039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... close resumed>) = 0 [pid 1040] <... openat resumed>) = 3 [pid 297] rmdir("./182" [pid 1040] write(3, "1000", 4 [pid 1039] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 1040] <... write resumed>) = 4 [pid 1040] close(3 [pid 1039] write(3, "1000", 4 [pid 297] mkdir("./183", 0777 [pid 1039] <... write resumed>) = 4 [pid 1040] <... close resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 1039] close(3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1039] <... close resumed>) = 0 executing program [pid 1040] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 1041 attached [pid 1039] symlink("/dev/binderfs", "./binderfs" [pid 1040] write(1, "executing program\n", 18 [pid 1041] set_robust_list(0x5555726b0660, 24 [pid 1040] <... write resumed>) = 18 [pid 1039] <... symlink resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1041 executing program [pid 1041] <... set_robust_list resumed>) = 0 [pid 1040] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1039] write(1, "executing program\n", 18 [pid 300] <... restart_syscall resumed>) = 0 [pid 1039] <... write resumed>) = 18 [pid 1041] chdir("./183" [pid 1040] <... mkdirat resumed>) = 0 [pid 1039] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1041] <... chdir resumed>) = 0 [pid 1040] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1039] <... mkdirat resumed>) = 0 [pid 300] umount2("./186", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1041] setpgid(0, 0 [pid 1040] <... mount resumed>) = 0 [pid 1039] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1041] <... setpgid resumed>) = 0 [pid 1041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1041] write(3, "1000", 4) = 4 [pid 1041] close(3) = 0 [pid 1041] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 3 [pid 1041] <... symlink resumed>) = 0 [pid 1041] write(1, "executing program\n", 18 executing program [pid 1039] <... mount resumed>) = 0 [pid 300] newfstatat(3, "", [pid 1041] <... write resumed>) = 18 [pid 1041] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1040] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(3, [pid 1041] <... mkdirat resumed>) = 0 [pid 1040] <... openat resumed>) = 3 [pid 1039] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1041] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1040] exit_group(0 [pid 1039] <... openat resumed>) = 3 [pid 300] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1041] <... mount resumed>) = 0 [pid 1040] <... exit_group resumed>) = ? [pid 1039] exit_group(0 [pid 300] <... umount2 resumed>) = 0 [pid 1041] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1041] exit_group(0) = ? [pid 1040] +++ exited with 0 +++ [pid 1039] <... exit_group resumed>) = ? [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1041] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1041, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1039] +++ exited with 0 +++ [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1039, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] newfstatat(AT_FDCWD, "./186/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./186/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./186/binderfs2") = 0 [pid 300] umount2("./186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./186/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./186") = 0 [pid 300] mkdir("./187", 0777) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1042 attached , child_tidptr=0x5555726b0650) = 1042 [pid 1042] set_robust_list(0x5555726b0660, 24) = 0 [pid 1042] chdir("./187") = 0 [pid 1042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1042] setpgid(0, 0) = 0 [pid 1042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... restart_syscall resumed>) = 0 [pid 1042] <... openat resumed>) = 3 [pid 1042] write(3, "1000", 4) = 4 [pid 297] umount2("./183", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1042] close(3) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1042] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] umount2("./182", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 298] umount2("./186", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1042] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1042] <... write resumed>) = 18 [pid 299] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 1042] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(3, "", [pid 298] newfstatat(3, "", [pid 297] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1042] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1042] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./182/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./182/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 298] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./182/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 1042] <... mount resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./182/binderfs2" [pid 297] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./182/binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1042] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(AT_FDCWD, "./183/binderfs2", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./186/binderfs2", [pid 299] rmdir("./182" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1042] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] mkdir("./183", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1042] exit_group(0 [pid 299] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./186/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] openat(AT_FDCWD, "./183/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1042] <... exit_group resumed>) = ? [pid 298] <... openat resumed>) = 4 [pid 297] <... openat resumed>) = 4 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1043 attached [pid 298] newfstatat(4, "", [pid 297] newfstatat(4, "", [pid 1043] set_robust_list(0x5555726b0660, 24) = 0 [pid 1043] chdir("./183" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1043 [pid 1043] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] getdents64(4, [pid 297] getdents64(4, [pid 1043] <... prctl resumed>) = 0 [pid 1043] setpgid(0, 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1042] +++ exited with 0 +++ [pid 1043] <... setpgid resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(4 [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] rmdir("./186/binderfs2" [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] rmdir("./183/binderfs2" [pid 1043] <... openat resumed>) = 3 [pid 1043] write(3, "1000", 4) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 1043] close(3) = 0 [pid 1043] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1043] write(1, "executing program\n", 18) = 18 [pid 1043] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./183/binderfs", [pid 1043] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1043] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(AT_FDCWD, "./186/binderfs", [pid 297] unlink("./183/binderfs" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1043] <... mount resumed>) = 0 [pid 298] unlink("./186/binderfs" [pid 297] <... unlink resumed>) = 0 [pid 1043] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... unlink resumed>) = 0 [pid 1043] <... openat resumed>) = 3 [pid 1043] exit_group(0) = ? [pid 297] getdents64(3, [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3 [pid 297] close(3 [pid 1043] +++ exited with 0 +++ [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./183" [pid 298] rmdir("./186" [pid 297] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1043, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... rmdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] mkdir("./184", 0777 [pid 298] mkdir("./187", 0777) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1044 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1044 ./strace-static-x86_64: Process 1045 attached [pid 1044] set_robust_list(0x5555726b0660, 24) = 0 [pid 1045] set_robust_list(0x5555726b0660, 24 [pid 1044] chdir("./187" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1045 [pid 1045] <... set_robust_list resumed>) = 0 [pid 1044] <... chdir resumed>) = 0 [pid 1044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1044] setpgid(0, 0) = 0 [pid 1044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1044] write(3, "1000", 4 [pid 1045] chdir("./184") = 0 [pid 1044] <... write resumed>) = 4 [pid 1045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1044] close(3 [pid 1045] <... prctl resumed>) = 0 [pid 1044] <... close resumed>) = 0 [pid 1044] symlink("/dev/binderfs", "./binderfs" [pid 1045] setpgid(0, 0 [pid 1044] <... symlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 1044] write(1, "executing program\n", 18executing program [pid 1045] <... setpgid resumed>) = 0 [pid 1044] <... write resumed>) = 18 [pid 1044] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./187", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1044] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1045] <... openat resumed>) = 3 [pid 1044] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... restart_syscall resumed>) = 0 [pid 1045] write(3, "1000", 4 [pid 1044] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1045] <... write resumed>) = 4 [pid 1045] close(3 [pid 300] <... openat resumed>) = 3 [pid 1045] <... close resumed>) = 0 [pid 1044] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1044] exit_group(0) = ? [pid 1045] symlink("/dev/binderfs", "./binderfs" [pid 300] newfstatat(3, "", [pid 299] umount2("./183", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1045] <... symlink resumed>) = 0 [pid 1044] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... openat resumed>) = 3 executing program [pid 1045] write(1, "executing program\n", 18 [pid 300] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 1045] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1044, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] getdents64(3, [pid 1045] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = 0 [pid 1045] <... mkdirat resumed>) = 0 [pid 300] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1045] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(AT_FDCWD, "./187/binderfs2", [pid 299] <... umount2 resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./187/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1045] <... mount resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1045] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1045] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./183/binderfs2", [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./187/binderfs2") = 0 [pid 1045] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1045] <... exit_group resumed>) = ? [pid 299] umount2("./183/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./187/binderfs", [pid 299] openat(AT_FDCWD, "./183/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./187/binderfs" [pid 299] <... openat resumed>) = 4 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./187" [pid 1045] +++ exited with 0 +++ [pid 298] <... restart_syscall resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(4, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1045, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./187", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] mkdir("./188", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] newfstatat(3, "", ./strace-static-x86_64: Process 1046 attached [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 297] umount2("./184", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./183/binderfs2" [pid 1046] set_robust_list(0x5555726b0660, 24 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1046 [pid 298] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1046] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1046] chdir("./188" [pid 299] umount2("./183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 1046] <... chdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] newfstatat(AT_FDCWD, "./183/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 1046] <... prctl resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1046] setpgid(0, 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./187/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] unlink("./183/binderfs" [pid 298] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./187/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./187/binderfs2" [pid 1046] <... setpgid resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 1046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(3, [pid 297] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 298] umount2("./187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./187/binderfs", [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./183" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1046] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] unlink("./187/binderfs" [pid 297] <... umount2 resumed>) = 0 [pid 299] mkdir("./184", 0777 [pid 298] <... unlink resumed>) = 0 [pid 1046] write(3, "1000", 4 [pid 299] <... mkdir resumed>) = 0 [pid 297] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1046] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1046] close(3 [pid 297] newfstatat(AT_FDCWD, "./184/binderfs2", [pid 1046] <... close resumed>) = 0 [pid 1046] symlink("/dev/binderfs", "./binderfs" [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(3, [pid 1046] <... symlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 1047 attached executing program [pid 1046] write(1, "executing program\n", 18 [pid 298] close(3 [pid 1047] set_robust_list(0x5555726b0660, 24 [pid 297] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1046] <... write resumed>) = 18 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./187" [pid 1047] <... set_robust_list resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1046] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1047 [pid 1047] chdir("./184" [pid 298] mkdir("./188", 0777 [pid 1046] <... mkdirat resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./184/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1047] <... chdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 4 [pid 1047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] newfstatat(4, "", [pid 1047] setpgid(0, 0 [pid 1046] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1047] <... setpgid resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 1048 attached [pid 1047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(4, [pid 1048] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1048 [pid 1048] <... set_robust_list resumed>) = 0 [pid 1048] chdir("./188") = 0 [pid 1048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1046] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1048] setpgid(0, 0) = 0 [pid 1048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(4, [pid 1048] <... openat resumed>) = 3 [pid 1048] write(3, "1000", 4) = 4 [pid 1048] close(3 [pid 1047] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1048] <... close resumed>) = 0 [pid 297] close(4 [pid 1048] symlink("/dev/binderfs", "./binderfs" [pid 1047] write(3, "1000", 4 [pid 297] <... close resumed>) = 0 [pid 1048] <... symlink resumed>) = 0 executing program [pid 1047] <... write resumed>) = 4 [pid 1046] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] rmdir("./184/binderfs2" [pid 1047] close(3 [pid 1048] write(1, "executing program\n", 18 [pid 1046] <... openat resumed>) = 3 [pid 1048] <... write resumed>) = 18 [pid 1048] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1047] <... close resumed>) = 0 [pid 1046] exit_group(0 [pid 297] <... rmdir resumed>) = 0 executing program [pid 1047] symlink("/dev/binderfs", "./binderfs" [pid 1046] <... exit_group resumed>) = ? [pid 1047] <... symlink resumed>) = 0 [pid 1047] write(1, "executing program\n", 18 [pid 297] umount2("./184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1047] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1047] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1046] +++ exited with 0 +++ [pid 297] newfstatat(AT_FDCWD, "./184/binderfs", [pid 1048] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1048] <... mount resumed>) = 0 [pid 1047] <... mkdirat resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] unlink("./184/binderfs" [pid 1048] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1048] exit_group(0) = ? [pid 297] <... unlink resumed>) = 0 [pid 1047] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(3, [pid 1048] +++ exited with 0 +++ [pid 1047] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 1047] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... close resumed>) = 0 [pid 1047] exit_group(0) = ? [pid 297] rmdir("./184" [pid 1047] +++ exited with 0 +++ [pid 297] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1047, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] umount2("./184", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] mkdir("./185", 0777 [pid 299] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./188", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./184/binderfs2", ./strace-static-x86_64: Process 1049 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1049] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./184/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1049 [pid 1049] <... set_robust_list resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(3, "", [pid 1049] chdir("./185" [pid 299] openat(AT_FDCWD, "./184/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... openat resumed>) = 4 [pid 298] getdents64(3, [pid 1049] <... chdir resumed>) = 0 [pid 299] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1049] setpgid(0, 0 [pid 299] getdents64(4, [pid 298] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1049] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 1049] <... openat resumed>) = 3 [pid 299] rmdir("./184/binderfs2" [pid 298] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1049] write(3, "1000", 4 [pid 299] <... rmdir resumed>) = 0 [pid 1049] <... write resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1049] close(3 [pid 299] umount2("./184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./188/binderfs2", [pid 1049] <... close resumed>) = 0 [pid 1049] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1049] <... symlink resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./184/binderfs", executing program {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1049] write(1, "executing program\n", 18 [pid 299] unlink("./184/binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1049] <... write resumed>) = 18 [pid 300] umount2("./188", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... unlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./188/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1049] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 1049] <... mkdirat resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 298] newfstatat(4, "", [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] getdents64(4, [pid 299] close(3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./184" [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 1049] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] mkdir("./185", 0777 [pid 298] rmdir("./188/binderfs2" [pid 1049] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1049] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] unlink("./188/binderfs" [pid 300] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... unlink resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./188/binderfs2", [pid 1049] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1049] exit_group(0 [pid 300] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 300] openat(AT_FDCWD, "./188/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1049] <... exit_group resumed>) = ? [pid 300] <... openat resumed>) = 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 1050 attached [pid 1049] +++ exited with 0 +++ [pid 300] newfstatat(4, "", [pid 1050] set_robust_list(0x5555726b0660, 24 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1049, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1050] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 298] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1050 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./188" [pid 1050] chdir("./185" [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./189", 0777 [pid 297] umount2("./185", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1050] <... chdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1050] <... prctl resumed>) = 0 [pid 1050] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] close(4 [pid 297] <... openat resumed>) = 3 [pid 1050] <... setpgid resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] newfstatat(3, "", [pid 1050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./188/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 1051 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1051 [pid 1051] set_robust_list(0x5555726b0660, 24) = 0 [pid 1051] chdir("./189") = 0 [pid 1051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 1051] setpgid(0, 0 [pid 1050] <... openat resumed>) = 3 [pid 300] umount2("./188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1050] write(3, "1000", 4 [pid 297] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1051] <... setpgid resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./188/binderfs", [pid 1051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1050] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1051] write(3, "1000", 4 [pid 1050] close(3 [pid 300] unlink("./188/binderfs" [pid 1051] <... write resumed>) = 4 [pid 1050] <... close resumed>) = 0 [pid 297] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1051] close(3) = 0 [pid 1050] symlink("/dev/binderfs", "./binderfs" [pid 300] <... unlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1051] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1050] <... symlink resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./185/binderfs2", [pid 300] getdents64(3, [pid 1051] write(1, "executing program\n", 18executing program executing program [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1051] <... write resumed>) = 18 [pid 1050] write(1, "executing program\n", 18 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1051] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1050] <... write resumed>) = 18 [pid 300] close(3) = 0 [pid 1050] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./188" [pid 1051] <... mkdirat resumed>) = 0 [pid 297] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 1050] <... mkdirat resumed>) = 0 [pid 300] mkdir("./189", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1051] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1050] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./185/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... mkdir resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 297] newfstatat(4, "", [pid 1051] <... mount resumed>) = 0 [pid 1050] <... mount resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1051] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1050] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] getdents64(4, [pid 1050] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 1051] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1051] exit_group(0 [pid 297] close(4) = 0 [pid 1050] exit_group(0./strace-static-x86_64: Process 1052 attached [pid 1051] <... exit_group resumed>) = ? [pid 1050] <... exit_group resumed>) = ? [pid 297] rmdir("./185/binderfs2" [pid 1052] set_robust_list(0x5555726b0660, 24) = 0 [pid 1052] chdir("./189") = 0 [pid 1052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1052] setpgid(0, 0) = 0 [pid 1051] +++ exited with 0 +++ [pid 1052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 1052] <... openat resumed>) = 3 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 1052] write(3, "1000", 4) = 4 [pid 1052] close(3) = 0 [pid 1052] symlink("/dev/binderfs", "./binderfs" [pid 297] <... rmdir resumed>) = 0 [pid 1052] <... symlink resumed>) = 0 [pid 1052] write(1, "executing program\n", 18) = 18 [pid 1052] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1050] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1052 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./185/binderfs", [pid 1052] <... mkdirat resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1052] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] unlink("./185/binderfs") = 0 [pid 298] umount2("./189", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] close(3 [pid 1052] <... mount resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1052] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... close resumed>) = 0 [pid 1052] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./185" [pid 1052] exit_group(0) = ? [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./186", 0777 [pid 1052] +++ exited with 0 +++ [pid 298] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./189/binderfs2", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./189/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, ./strace-static-x86_64: Process 1053 attached 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1053] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] getdents64(4, [pid 1053] chdir("./186" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 1053] <... chdir resumed>) = 0 [pid 1053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] rmdir("./189/binderfs2" [pid 1053] <... prctl resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1053 [pid 1053] setpgid(0, 0) = 0 [pid 1053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] umount2("./189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1053] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./189/binderfs", [pid 1053] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1053] <... write resumed>) = 4 [pid 1053] close(3 [pid 298] unlink("./189/binderfs" [pid 1053] <... close resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 1053] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] close(3) = 0 [pid 1053] <... symlink resumed>) = 0 executing program [pid 299] umount2("./185", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./189" [pid 1053] write(1, "executing program\n", 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1053] <... write resumed>) = 18 [pid 298] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1053] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... openat resumed>) = 3 [pid 1053] <... mkdirat resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] mkdir("./190", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./189", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] getdents64(3, [pid 1053] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 299] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1054 attached [pid 300] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1054] set_robust_list(0x5555726b0660, 24 [pid 1053] <... mount resumed>) = 0 [pid 1054] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./189/binderfs2", [pid 1054] chdir("./190" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1054] <... chdir resumed>) = 0 [pid 1054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1054] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./189/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1054] setpgid(0, 0 [pid 300] <... openat resumed>) = 4 [pid 299] <... umount2 resumed>) = 0 [pid 1054] <... setpgid resumed>) = 0 [pid 300] newfstatat(4, "", [pid 299] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1054 [pid 1054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1053] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./185/binderfs2", [pid 1054] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1054] write(3, "1000", 4 [pid 1053] <... openat resumed>) = 3 [pid 300] getdents64(4, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1054] <... write resumed>) = 4 [pid 1053] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./185/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1054] close(3 [pid 300] getdents64(4, [pid 1054] <... close resumed>) = 0 [pid 1053] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1054] symlink("/dev/binderfs", "./binderfs" [pid 300] close(4 [pid 1054] <... symlink resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./189/binderfs2" [pid 1053] +++ exited with 0 +++ [pid 1054] write(1, "executing program\n", 18 executing program [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./185/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1054] <... write resumed>) = 18 [pid 1054] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... openat resumed>) = 4 [pid 1054] <... mkdirat resumed>) = 0 [pid 300] umount2("./189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1053, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 297] <... restart_syscall resumed>) = 0 [pid 1054] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1054] <... mount resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./189/binderfs", [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] unlink("./189/binderfs" [pid 299] close(4 [pid 297] umount2("./186", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] rmdir("./185/binderfs2" [pid 1054] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... unlink resumed>) = 0 [pid 1054] <... openat resumed>) = 3 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 1054] exit_group(0 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./189" [pid 1054] <... exit_group resumed>) = ? [pid 297] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1054] +++ exited with 0 +++ [pid 299] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] umount2("./185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 299] newfstatat(AT_FDCWD, "./185/binderfs", [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] unlink("./185/binderfs" [pid 297] getdents64(3, [pid 300] mkdir("./190", 0777) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, [pid 297] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] close(3 [pid 297] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./185"./strace-static-x86_64: Process 1055 attached [pid 1055] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1055 [pid 1055] <... set_robust_list resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 1055] chdir("./190" [pid 299] mkdir("./186", 0777 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1055] <... chdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./186/binderfs2", [pid 1055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1055] setpgid(0, 0) = 0 [pid 1055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... mkdir resumed>) = 0 [pid 297] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1055] <... openat resumed>) = 3 [pid 1055] write(3, "1000", 4) = 4 [pid 1055] close(3 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./186/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1055] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 1055] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 1055] <... symlink resumed>) = 0 [pid 297] getdents64(4, [pid 1055] write(1, "executing program\n", 18./strace-static-x86_64: Process 1056 attached [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1056] set_robust_list(0x5555726b0660, 24 [pid 1055] <... write resumed>) = 18 [pid 298] umount2("./190", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 1056] <... set_robust_list resumed>) = 0 [pid 1055] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1056 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1056] chdir("./186" [pid 297] close(4 [pid 1056] <... chdir resumed>) = 0 [pid 1055] <... mkdirat resumed>) = 0 [pid 298] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... close resumed>) = 0 [pid 1056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] rmdir("./186/binderfs2" [pid 298] <... openat resumed>) = 3 [pid 1056] <... prctl resumed>) = 0 [pid 1056] setpgid(0, 0) = 0 [pid 1055] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1056] <... openat resumed>) = 3 [pid 1055] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1056] write(3, "1000", 4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1056] <... write resumed>) = 4 [pid 1056] close(3) = 0 [pid 1056] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./186/binderfs", [pid 1056] write(1, "executing program\n", 18 [pid 1055] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1056] <... write resumed>) = 18 executing program [pid 1055] <... openat resumed>) = 3 [pid 297] unlink("./186/binderfs" [pid 1056] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1055] exit_group(0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 1055] <... exit_group resumed>) = ? [pid 297] getdents64(3, [pid 298] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(3 [pid 298] newfstatat(AT_FDCWD, "./190/binderfs2", [pid 297] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./186" [pid 298] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1056] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1055] +++ exited with 0 +++ [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 1056] <... mount resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1055, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1056] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] openat(AT_FDCWD, "./190/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] mkdir("./187", 0777 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 300] <... restart_syscall resumed>) = 0 [pid 1056] exit_group(0) = ? [pid 300] umount2("./190", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 300] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 300] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] rmdir("./190/binderfs2" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1056] +++ exited with 0 +++ [pid 300] getdents64(3, [pid 298] <... rmdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1057 attached [pid 300] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./190/binderfs", [pid 1057] set_robust_list(0x5555726b0660, 24 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1057] <... set_robust_list resumed>) = 0 [pid 1057] chdir("./187") = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] unlink("./190/binderfs" [pid 1057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1057] setpgid(0, 0) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1057 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] newfstatat(AT_FDCWD, "./190/binderfs2", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1057] write(3, "1000", 4 [pid 299] umount2("./186", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1057] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] close(3 [pid 1057] close(3) = 0 [pid 1057] symlink("/dev/binderfs", "./binderfs" [pid 300] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 1057] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 300] openat(AT_FDCWD, "./190/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] rmdir("./190" [pid 299] <... openat resumed>) = 3 [pid 1057] write(1, "executing program\n", 18) = 18 [pid 1057] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] mkdir("./191", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 300] getdents64(4, [pid 1057] <... mkdirat resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1057] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, [pid 1057] <... mount resumed>) = 0 [pid 299] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 1057] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] close(4) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] rmdir("./190/binderfs2" [pid 1057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 1058 attached [pid 299] <... umount2 resumed>) = 0 [pid 1057] exit_group(0 [pid 1058] set_robust_list(0x5555726b0660, 24 [pid 1057] <... exit_group resumed>) = ? [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1058] <... set_robust_list resumed>) = 0 [pid 300] umount2("./190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1058 [pid 1058] chdir("./191" [pid 1057] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./186/binderfs2", [pid 300] newfstatat(AT_FDCWD, "./190/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1058] <... chdir resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1057, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./186/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] unlink("./190/binderfs" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1058] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 1058] setpgid(0, 0 [pid 300] getdents64(3, [pid 299] openat(AT_FDCWD, "./186/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1058] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... openat resumed>) = 4 [pid 1058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] close(3 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... close resumed>) = 0 [pid 1058] <... openat resumed>) = 3 [pid 300] rmdir("./190" [pid 299] getdents64(4, [pid 300] <... rmdir resumed>) = 0 [pid 1058] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1058] <... write resumed>) = 4 [pid 299] getdents64(4, [pid 1058] close(3 [pid 300] mkdir("./191", 0777 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 1058] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1058] symlink("/dev/binderfs", "./binderfs" [pid 300] <... mkdir resumed>) = 0 [pid 299] rmdir("./186/binderfs2" [pid 1058] <... symlink resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./187", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1058] write(1, "executing program\n", 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 299] <... rmdir resumed>) = 0 [pid 1058] <... write resumed>) = 18 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1059 attached [pid 1058] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 1059] set_robust_list(0x5555726b0660, 24) = 0 [pid 1059] chdir("./191" [pid 297] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1059] <... chdir resumed>) = 0 [pid 1058] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1059 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] newfstatat(AT_FDCWD, "./187/binderfs2", [pid 1059] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./186/binderfs", [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1059] setpgid(0, 0 [pid 1058] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1059] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] unlink("./186/binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./187/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1059] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 1059] write(3, "1000", 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1059] <... write resumed>) = 4 [pid 297] getdents64(4, [pid 1059] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1059] <... close resumed>) = 0 [pid 297] getdents64(4, [pid 1059] symlink("/dev/binderfs", "./binderfs" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1059] <... symlink resumed>) = 0 [pid 1058] <... mount resumed>) = 0 [pid 299] close(3 [pid 297] close(4) = 0 [pid 297] rmdir("./187/binderfs2" [pid 1059] write(1, "executing program\n", 18 executing program [pid 1058] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... close resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 1059] <... write resumed>) = 18 [pid 299] rmdir("./186" [pid 1059] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 299] mkdir("./187", 0777 [pid 297] umount2("./187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1059] <... mkdirat resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./187/binderfs", [pid 1058] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./187/binderfs" [pid 1059] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... unlink resumed>) = 0 [pid 1058] exit_group(0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1058] <... exit_group resumed>) = ? [pid 1059] <... mount resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1058] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(3) = 0 [pid 297] rmdir("./187") = 0 ./strace-static-x86_64: Process 1060 attached [pid 1059] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1060] set_robust_list(0x5555726b0660, 24) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1060 [pid 1060] chdir("./187" [pid 1059] exit_group(0 [pid 297] mkdir("./188", 0777 [pid 1060] <... chdir resumed>) = 0 [pid 1059] <... exit_group resumed>) = ? [pid 1060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1059] +++ exited with 0 +++ [pid 1060] setpgid(0, 0) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1059, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... mkdir resumed>) = 0 [pid 1060] <... openat resumed>) = 3 [pid 1060] write(3, "1000", 4 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1060] <... write resumed>) = 4 [pid 1060] close(3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1061 [pid 1060] <... close resumed>) = 0 ./strace-static-x86_64: Process 1061 attached [pid 1060] symlink("/dev/binderfs", "./binderfs" [pid 1061] set_robust_list(0x5555726b0660, 24) = 0 [pid 1060] <... symlink resumed>) = 0 executing program [pid 1061] chdir("./188" [pid 1060] write(1, "executing program\n", 18 [pid 300] <... restart_syscall resumed>) = 0 [pid 1061] <... chdir resumed>) = 0 [pid 1060] <... write resumed>) = 18 [pid 1061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1060] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1061] <... prctl resumed>) = 0 [pid 300] umount2("./191", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1061] setpgid(0, 0) = 0 [pid 1060] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1060] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1061] <... openat resumed>) = 3 [pid 300] <... openat resumed>) = 3 [pid 1061] write(3, "1000", 4 [pid 1060] <... mount resumed>) = 0 [pid 300] newfstatat(3, "", [pid 1061] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1061] close(3 [pid 1060] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1061] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 1061] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1061] write(1, "executing program\n", 18 [pid 300] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1061] <... write resumed>) = 18 [pid 1060] <... openat resumed>) = 3 [pid 1061] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1060] exit_group(0) = ? [pid 300] <... umount2 resumed>) = 0 [pid 1061] <... mkdirat resumed>) = 0 [pid 300] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1060] +++ exited with 0 +++ [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1061] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] newfstatat(AT_FDCWD, "./191/binderfs2", [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1061] <... mount resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1061] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./191/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] umount2("./191", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(4, [pid 1061] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... openat resumed>) = 3 [pid 1061] exit_group(0) = ? [pid 300] getdents64(4, [pid 298] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] close(4 [pid 299] umount2("./187", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./191/binderfs2" [pid 299] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1061] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1061, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(AT_FDCWD, "./191/binderfs2", [pid 299] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./191/binderfs", [pid 297] umount2("./188", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = 0 [pid 298] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 300] unlink("./191/binderfs" [pid 299] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... unlink resumed>) = 0 [pid 298] openat(AT_FDCWD, "./191/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./187/binderfs2", [pid 300] close(3 [pid 298] newfstatat(4, "", [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./187/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./191" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] openat(AT_FDCWD, "./187/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./188/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./188/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./192", 0777 [pid 299] <... openat resumed>) = 4 [pid 298] getdents64(4, [pid 297] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] close(4 [pid 299] getdents64(4, [pid 297] newfstatat(4, "", [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] rmdir("./191/binderfs2" [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] <... mkdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./188/binderfs2" [pid 298] <... rmdir resumed>) = 0 [pid 299] getdents64(4, [pid 298] umount2("./191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 297] <... rmdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./191/binderfs", [pid 297] umount2("./188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./187/binderfs2" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 1062 attached [pid 297] unlink("./188/binderfs" [pid 1062] set_robust_list(0x5555726b0660, 24 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 1062] <... set_robust_list resumed>) = 0 [pid 1062] chdir("./192" [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1062 [pid 299] umount2("./187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] getdents64(3, [pid 1062] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] unlink("./191/binderfs" [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] close(3 [pid 1062] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./187/binderfs", [pid 298] <... unlink resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 1062] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] getdents64(3, [pid 1062] <... setpgid resumed>) = 0 [pid 299] unlink("./187/binderfs" [pid 297] rmdir("./188" [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... unlink resumed>) = 0 [pid 298] close(3 [pid 297] <... rmdir resumed>) = 0 [pid 1062] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 297] mkdir("./189", 0777 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] rmdir("./191" [pid 299] close(3 [pid 1062] write(3, "1000", 4 [pid 299] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 1062] <... write resumed>) = 4 [pid 299] rmdir("./187" [pid 1062] close(3) = 0 [pid 1062] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] mkdir("./192", 0777 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1062] write(1, "executing program\n", 18executing program ) = 18 [pid 1062] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] mkdir("./188", 0777 [pid 298] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 1063 attached [pid 1062] <... mkdirat resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1063 [pid 1063] set_robust_list(0x5555726b0660, 24 [pid 1062] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 1064 attached [pid 1063] <... set_robust_list resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 1064] set_robust_list(0x5555726b0660, 24 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1064] <... set_robust_list resumed>) = 0 [pid 1063] chdir("./189" [pid 1064] chdir("./192"./strace-static-x86_64: Process 1065 attached [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1064 [pid 1064] <... chdir resumed>) = 0 [pid 1065] set_robust_list(0x5555726b0660, 24 [pid 1064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1065] <... set_robust_list resumed>) = 0 [pid 1064] <... prctl resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1065 [pid 1065] chdir("./188" [pid 1064] setpgid(0, 0 [pid 1062] <... mount resumed>) = 0 [pid 1063] <... chdir resumed>) = 0 [pid 1065] <... chdir resumed>) = 0 [pid 1064] <... setpgid resumed>) = 0 [pid 1065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1062] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1065] <... prctl resumed>) = 0 [pid 1063] <... prctl resumed>) = 0 [pid 1065] setpgid(0, 0 [pid 1064] <... openat resumed>) = 3 [pid 1065] <... setpgid resumed>) = 0 [pid 1065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1063] setpgid(0, 0 [pid 1062] <... openat resumed>) = 3 [pid 1063] <... setpgid resumed>) = 0 [pid 1065] <... openat resumed>) = 3 [pid 1064] write(3, "1000", 4 [pid 1063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1064] <... write resumed>) = 4 [pid 1065] write(3, "1000", 4 [pid 1064] close(3 [pid 1065] <... write resumed>) = 4 [pid 1064] <... close resumed>) = 0 [pid 1065] close(3 [pid 1064] symlink("/dev/binderfs", "./binderfs" [pid 1063] <... openat resumed>) = 3 [pid 1065] <... close resumed>) = 0 [pid 1064] <... symlink resumed>) = 0 [pid 1063] write(3, "1000", 4 [pid 1062] exit_group(0 [pid 1065] symlink("/dev/binderfs", "./binderfs" [pid 1063] <... write resumed>) = 4 [pid 1065] <... symlink resumed>) = 0 [pid 1064] write(1, "executing program\n", 18 [pid 1062] <... exit_group resumed>) = ? [pid 1063] close(3 [pid 1064] <... write resumed>) = 18 [pid 1065] write(1, "executing program\n", 18 [pid 1064] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1063] <... close resumed>) = 0 [pid 1065] <... write resumed>) = 18 [pid 1064] <... mkdirat resumed>) = 0 [pid 1065] mkdirat(AT_FDCWD, "./binderfs2", 0777executing program executing program ) = 0 [pid 1063] symlink("/dev/binderfs", "./binderfs" [pid 1062] +++ exited with 0 +++ [pid 1064] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1063] <... symlink resumed>) = 0 [pid 1064] <... mount resumed>) = 0 [pid 1063] write(1, "executing program\n", 18) = 18 executing program [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1065] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1063] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1065] <... mount resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 1064] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1063] <... mkdirat resumed>) = 0 [pid 1065] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1064] exit_group(0 [pid 1065] <... openat resumed>) = 3 [pid 1064] <... exit_group resumed>) = ? [pid 300] umount2("./192", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1064] +++ exited with 0 +++ [pid 1065] exit_group(0 [pid 1063] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1065] <... exit_group resumed>) = ? [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1065] +++ exited with 0 +++ [pid 1063] <... mount resumed>) = 0 [pid 300] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1065, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1063] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 300] <... openat resumed>) = 3 [pid 1063] exit_group(0) = ? [pid 300] newfstatat(3, "", [pid 1063] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1063, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] umount2("./192", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 299] umount2("./188", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 299] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 300] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./192/binderfs2", [pid 299] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = 0 [pid 300] openat(AT_FDCWD, "./192/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(4, "", [pid 299] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./192/binderfs2", [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./188/binderfs2", [pid 298] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./188/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./192/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] getdents64(4, [pid 299] openat(AT_FDCWD, "./188/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... openat resumed>) = 4 [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 300] close(4 [pid 299] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... close resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./192/binderfs2" [pid 299] getdents64(4, [pid 298] getdents64(4, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] close(4 [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] rmdir("./192/binderfs2" [pid 300] umount2("./192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./188/binderfs2" [pid 298] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./192/binderfs", [pid 298] umount2("./192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] unlink("./192/binderfs" [pid 299] umount2("./188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./192/binderfs", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./192/binderfs" [pid 299] unlink("./188/binderfs" [pid 298] <... unlink resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] getdents64(3, [pid 298] close(3 [pid 300] close(3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... close resumed>) = 0 [pid 299] close(3 [pid 300] <... close resumed>) = 0 [pid 298] rmdir("./192" [pid 300] rmdir("./192" [pid 299] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 299] rmdir("./188" [pid 300] <... rmdir resumed>) = 0 [pid 298] mkdir("./193", 0777 [pid 300] mkdir("./193", 0777 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 299] mkdir("./189", 0777 [pid 300] <... mkdir resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1066 attached [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./189", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1066 ./strace-static-x86_64: Process 1067 attached ./strace-static-x86_64: Process 1068 attached [pid 1067] set_robust_list(0x5555726b0660, 24 [pid 1066] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1067 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1067] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1068 [pid 1066] <... set_robust_list resumed>) = 0 [pid 1067] chdir("./193" [pid 297] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1066] chdir("./193" [pid 1067] <... chdir resumed>) = 0 [pid 1067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... openat resumed>) = 3 [pid 1068] set_robust_list(0x5555726b0660, 24 [pid 1067] <... prctl resumed>) = 0 [pid 1066] <... chdir resumed>) = 0 [pid 297] newfstatat(3, "", [pid 1068] <... set_robust_list resumed>) = 0 [pid 1067] setpgid(0, 0 [pid 1066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1066] <... prctl resumed>) = 0 [pid 297] getdents64(3, [pid 1067] <... setpgid resumed>) = 0 [pid 1066] setpgid(0, 0 [pid 1067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1067] <... openat resumed>) = 3 [pid 1066] <... setpgid resumed>) = 0 [pid 1068] chdir("./189" [pid 297] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1067] write(3, "1000", 4) = 4 [pid 1067] close(3 [pid 1068] <... chdir resumed>) = 0 [pid 1067] <... close resumed>) = 0 [pid 1067] symlink("/dev/binderfs", "./binderfs"executing program [pid 1066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1067] <... symlink resumed>) = 0 [pid 1067] write(1, "executing program\n", 18) = 18 [pid 1067] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... umount2 resumed>) = 0 [pid 1066] <... openat resumed>) = 3 [pid 1068] <... prctl resumed>) = 0 [pid 1068] setpgid(0, 0 [pid 1067] <... mkdirat resumed>) = 0 [pid 1066] write(3, "1000", 4 [pid 297] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1068] <... setpgid resumed>) = 0 [pid 1066] <... write resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1067] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1066] close(3 [pid 297] newfstatat(AT_FDCWD, "./189/binderfs2", [pid 1066] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1066] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1068] <... openat resumed>) = 3 [pid 1067] <... mount resumed>) = 0 [pid 1066] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1067] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1067] exit_group(0) = ? [pid 1068] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./189/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 1066] write(1, "executing program\n", 18 [pid 1068] <... write resumed>) = 4 [pid 297] <... openat resumed>) = 4 [pid 1068] close(3 [pid 1066] <... write resumed>) = 18 [pid 297] newfstatat(4, "", [pid 1068] <... close resumed>) = 0 [pid 1066] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1068] symlink("/dev/binderfs", "./binderfs" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1066] <... mkdirat resumed>) = 0 [pid 1068] <... symlink resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 1067] +++ exited with 0 +++ [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1068] write(1, "executing program\n", 18 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1067, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(4 [pid 1068] <... write resumed>) = 18 [pid 1066] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1068] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./189/binderfs2" [pid 1066] <... mount resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 1068] <... mkdirat resumed>) = 0 [pid 1066] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1068] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1066] exit_group(0 [pid 297] umount2("./189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1066] <... exit_group resumed>) = ? [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1066] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(AT_FDCWD, "./189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1068] <... mount resumed>) = 0 [pid 297] unlink("./189/binderfs" [pid 1068] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] rmdir("./189" [pid 1068] exit_group(0 [pid 297] <... rmdir resumed>) = 0 [pid 1068] <... exit_group resumed>) = ? [pid 300] <... restart_syscall resumed>) = 0 [pid 298] umount2("./193", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] mkdir("./190", 0777 [pid 1068] +++ exited with 0 +++ [pid 298] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... mkdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./193", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1069 attached ) = 3 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1069 [pid 1069] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(3, "", [pid 1069] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 298] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1069] chdir("./190" [pid 300] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./193/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./193/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./193/binderfs2") = 0 [pid 298] umount2("./193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 298] unlink("./193/binderfs" [pid 1069] <... chdir resumed>) = 0 [pid 300] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1069] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./193/binderfs2", [pid 1069] setpgid(0, 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... unlink resumed>) = 0 [pid 1069] <... setpgid resumed>) = 0 [pid 300] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./193/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./193" [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", [pid 298] <... rmdir resumed>) = 0 [pid 1069] <... openat resumed>) = 3 [pid 298] mkdir("./194", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1069] write(3, "1000", 4 [pid 300] getdents64(4, [pid 1069] <... write resumed>) = 4 [pid 1069] close(3 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... mkdir resumed>) = 0 [pid 1069] <... close resumed>) = 0 [pid 300] getdents64(4, [pid 1069] symlink("/dev/binderfs", "./binderfs" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1069] <... symlink resumed>) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./193/binderfs2"./strace-static-x86_64: Process 1070 attached [pid 1070] set_robust_list(0x5555726b0660, 24 [pid 1069] write(1, "executing program\n", 18 [pid 300] <... rmdir resumed>) = 0 [pid 1070] <... set_robust_list resumed>) = 0 executing program [pid 1070] chdir("./194" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1070 [pid 1069] <... write resumed>) = 18 [pid 300] umount2("./193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1070] <... chdir resumed>) = 0 [pid 1069] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1070] <... prctl resumed>) = 0 [pid 1070] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./193/binderfs", [pid 1070] <... setpgid resumed>) = 0 [pid 1070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1069] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 1070] <... openat resumed>) = 3 [pid 300] unlink("./193/binderfs" [pid 1069] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1070] write(3, "1000", 4) = 4 [pid 1070] close(3) = 0 [pid 300] <... unlink resumed>) = 0 [pid 1070] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(3, [pid 1070] <... symlink resumed>) = 0 [pid 1070] write(1, "executing program\n", 18) = 18 [pid 1069] <... mount resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] close(3 [pid 1069] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... close resumed>) = 0 [pid 1070] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./189", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1070] <... mkdirat resumed>) = 0 [pid 1069] <... openat resumed>) = 3 [pid 300] rmdir("./193" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", [pid 1070] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... rmdir resumed>) = 0 [pid 1070] <... mount resumed>) = 0 [pid 1069] exit_group(0 [pid 300] mkdir("./194", 0777 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1069] <... exit_group resumed>) = ? [pid 300] <... mkdir resumed>) = 0 [pid 1070] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1070] exit_group(0 [pid 299] <... umount2 resumed>) = 0 [pid 1070] <... exit_group resumed>) = ? [pid 1070] +++ exited with 0 +++ [pid 1069] +++ exited with 0 +++ [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1069, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(AT_FDCWD, "./189/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./189/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1071 attached ) = -1 EINVAL (Invalid argument) [pid 1071] set_robust_list(0x5555726b0660, 24 [pid 299] openat(AT_FDCWD, "./189/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1071] <... set_robust_list resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 1071] chdir("./194" [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1071] <... chdir resumed>) = 0 [pid 299] getdents64(4, [pid 1071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1071] <... prctl resumed>) = 0 [pid 1071] setpgid(0, 0 [pid 299] getdents64(4, [pid 1071] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] close(4) = 0 [pid 1071] <... openat resumed>) = 3 [pid 299] rmdir("./189/binderfs2" [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1071 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 1071] write(3, "1000", 4 [pid 299] <... rmdir resumed>) = 0 [pid 1071] <... write resumed>) = 4 [pid 1071] close(3 [pid 299] umount2("./189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1071] <... close resumed>) = 0 [pid 1071] symlink("/dev/binderfs", "./binderfs" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1071] <... symlink resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 1071] write(1, "executing program\n", 18) = 18 [pid 299] unlink("./189/binderfs" [pid 1071] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... unlink resumed>) = 0 [pid 1071] <... mkdirat resumed>) = 0 [pid 299] getdents64(3, [pid 298] <... restart_syscall resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./189" [pid 1071] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] umount2("./194", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1071] <... mount resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] mkdir("./190", 0777 [pid 298] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... mkdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 1071] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 298] newfstatat(3, "", [pid 1071] exit_group(0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1071] <... exit_group resumed>) = ? [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1071] +++ exited with 0 +++ [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1072 attached [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1071, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1072] set_robust_list(0x5555726b0660, 24) = 0 [pid 1072] chdir("./190" [pid 298] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1072] <... chdir resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1072 [pid 1072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1072] setpgid(0, 0) = 0 [pid 1072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1072] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./194/binderfs2", [pid 297] umount2("./190", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1072] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1072] <... write resumed>) = 4 [pid 298] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1072] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... openat resumed>) = 3 [pid 1072] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./194/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(3, "", [pid 1072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 298] <... openat resumed>) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, executing program [pid 298] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1072] write(1, "executing program\n", 18) = 18 [pid 297] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1072] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1072] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1072] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] close(4) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] rmdir("./194/binderfs2" [pid 297] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1072] <... mount resumed>) = 0 [pid 300] umount2("./194", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./190/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1072] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1072] <... openat resumed>) = 3 [pid 297] openat(AT_FDCWD, "./190/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1072] exit_group(0 [pid 300] <... openat resumed>) = 3 [pid 298] newfstatat(AT_FDCWD, "./194/binderfs", [pid 297] <... openat resumed>) = 4 [pid 1072] <... exit_group resumed>) = ? [pid 300] newfstatat(3, "", [pid 297] newfstatat(4, "", [pid 1072] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(4, [pid 300] getdents64(3, [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] unlink("./194/binderfs" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 298] <... unlink resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./190/binderfs2") = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] umount2("./190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./190/binderfs", [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./190/binderfs") = 0 [pid 297] getdents64(3, [pid 298] close(3 [pid 300] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./194" [pid 300] newfstatat(AT_FDCWD, "./194/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./190" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] mkdir("./191", 0777 [pid 300] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./194/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", [pid 298] mkdir("./195", 0777 [pid 297] <... mkdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 1073 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1073 [pid 1073] set_robust_list(0x5555726b0660, 24 [pid 298] <... mkdir resumed>) = 0 [pid 300] getdents64(4, [pid 1073] <... set_robust_list resumed>) = 0 [pid 1073] chdir("./191" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] umount2("./190", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1073] <... chdir resumed>) = 0 [pid 1073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] close(4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1073] setpgid(0, 0) = 0 [pid 1073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 1074 attached [pid 299] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... close resumed>) = 0 [pid 1074] set_robust_list(0x5555726b0660, 24 [pid 1073] <... openat resumed>) = 3 [pid 300] rmdir("./194/binderfs2" [pid 299] <... openat resumed>) = 3 [pid 1073] write(3, "1000", 4) = 4 [pid 1073] close(3) = 0 [pid 1073] symlink("/dev/binderfs", "./binderfs" [pid 300] <... rmdir resumed>) = 0 executing program [pid 1074] <... set_robust_list resumed>) = 0 [pid 299] newfstatat(3, "", [pid 1073] <... symlink resumed>) = 0 [pid 1073] write(1, "executing program\n", 18 [pid 1074] chdir("./195" [pid 1073] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1074 [pid 1073] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 1074] <... chdir resumed>) = 0 [pid 1073] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] newfstatat(AT_FDCWD, "./194/binderfs", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1074] <... prctl resumed>) = 0 [pid 299] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1073] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] unlink("./194/binderfs" [pid 1074] setpgid(0, 0 [pid 300] <... unlink resumed>) = 0 [pid 1073] <... mount resumed>) = 0 [pid 1073] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = 0 [pid 1074] <... setpgid resumed>) = 0 [pid 300] getdents64(3, [pid 1073] <... openat resumed>) = 3 [pid 1073] exit_group(0) = ? [pid 1074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1074] <... openat resumed>) = 3 [pid 300] close(3) = 0 [pid 299] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./194" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1074] write(3, "1000", 4 [pid 1073] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1073, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] newfstatat(AT_FDCWD, "./190/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./190/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1074] <... write resumed>) = 4 [pid 300] mkdir("./195", 0777 [pid 1074] close(3 [pid 299] openat(AT_FDCWD, "./190/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1074] <... close resumed>) = 0 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1074] symlink("/dev/binderfs", "./binderfs" [pid 300] <... mkdir resumed>) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./190/binderfs2"executing program [pid 1074] <... symlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1074] write(1, "executing program\n", 18 [pid 299] newfstatat(AT_FDCWD, "./190/binderfs", [pid 1074] <... write resumed>) = 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1074] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] unlink("./190/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1074] <... mkdirat resumed>) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./190"./strace-static-x86_64: Process 1075 attached ) = 0 [pid 1075] set_robust_list(0x5555726b0660, 24 [pid 1074] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1075] <... set_robust_list resumed>) = 0 [pid 299] mkdir("./191", 0777 [pid 1075] chdir("./195") = 0 [pid 299] <... mkdir resumed>) = 0 [pid 1075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1074] <... mount resumed>) = 0 [pid 1075] <... prctl resumed>) = 0 [pid 1075] setpgid(0, 0) = 0 [pid 1075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1076 attached [pid 1075] <... openat resumed>) = 3 [pid 1074] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1075 [pid 297] <... restart_syscall resumed>) = 0 [pid 1076] set_robust_list(0x5555726b0660, 24 [pid 1075] write(3, "1000", 4) = 4 [pid 1076] <... set_robust_list resumed>) = 0 [pid 1075] close(3 [pid 1074] <... openat resumed>) = 3 [pid 1075] <... close resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1076 [pid 1076] chdir("./191" [pid 1075] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./191", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1076] <... chdir resumed>) = 0 [pid 1075] <... symlink resumed>) = 0 [pid 1074] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1075] write(1, "executing program\n", 18 [pid 297] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1075] <... write resumed>) = 18 [pid 297] <... openat resumed>) = 3 [pid 1075] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1076] <... prctl resumed>) = 0 [pid 1075] <... mkdirat resumed>) = 0 [pid 1074] <... exit_group resumed>) = ? [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1076] setpgid(0, 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1075] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1076] <... setpgid resumed>) = 0 [pid 1075] <... mount resumed>) = 0 [pid 1074] +++ exited with 0 +++ [pid 1076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./191/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1076] <... openat resumed>) = 3 [pid 298] umount2("./195", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1076] write(3, "1000", 4 [pid 297] openat(AT_FDCWD, "./191/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1076] <... write resumed>) = 4 [pid 298] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 4 [pid 1076] close(3 [pid 1075] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] newfstatat(3, "", [pid 297] newfstatat(4, "", [pid 1075] <... openat resumed>) = 3 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 1076] <... close resumed>) = 0 [pid 1075] exit_group(0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 1076] symlink("/dev/binderfs", "./binderfs" [pid 298] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1075] <... exit_group resumed>) = ? [pid 297] close(4 [pid 1076] <... symlink resumed>) = 0 [pid 1075] +++ exited with 0 +++ [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1075, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] rmdir("./191/binderfs2") = 0 [pid 297] umount2("./191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./191/binderfs"executing program [pid 1076] write(1, "executing program\n", 18 [pid 298] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 1076] <... write resumed>) = 18 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1076] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(AT_FDCWD, "./195/binderfs2", [pid 297] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./191" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./195/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] mkdir("./192", 0777 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, [pid 1076] <... mkdirat resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1076] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1077 attached [pid 1076] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1077] set_robust_list(0x5555726b0660, 24) = 0 [pid 1077] chdir("./192" [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1077 [pid 300] <... restart_syscall resumed>) = 0 [pid 298] close(4 [pid 1077] <... chdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 1077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1077] setpgid(0, 0 [pid 300] umount2("./195", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./195/binderfs2" [pid 1077] <... setpgid resumed>) = 0 [pid 1077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1077] <... openat resumed>) = 3 [pid 1076] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 1077] write(3, "1000", 4 [pid 300] newfstatat(3, "", [pid 1077] <... write resumed>) = 4 [pid 1076] <... openat resumed>) = 3 [pid 1077] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1077] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1077] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1076] exit_group(0 executing program [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] newfstatat(AT_FDCWD, "./195/binderfs", [pid 1076] <... exit_group resumed>) = ? [pid 300] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1077] write(1, "executing program\n", 18 [pid 298] unlink("./195/binderfs" [pid 1077] <... write resumed>) = 18 [pid 1077] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... unlink resumed>) = 0 [pid 1077] <... mkdirat resumed>) = 0 [pid 1077] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1076] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = 0 [pid 298] getdents64(3, [pid 1077] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1077] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] close(3 [pid 300] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1077] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 1077] exit_group(0 [pid 298] rmdir("./195" [pid 300] newfstatat(AT_FDCWD, "./195/binderfs2", [pid 1077] <... exit_group resumed>) = ? [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1077] +++ exited with 0 +++ [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1077, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 298] mkdir("./196", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./195/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1078 ./strace-static-x86_64: Process 1078 attached [pid 300] <... close resumed>) = 0 [pid 1078] set_robust_list(0x5555726b0660, 24 [pid 300] rmdir("./195/binderfs2" [pid 1078] <... set_robust_list resumed>) = 0 [pid 1078] chdir("./196" [pid 300] <... rmdir resumed>) = 0 [pid 1078] <... chdir resumed>) = 0 [pid 1078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1078] setpgid(0, 0) = 0 [pid 1078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./195/binderfs", [pid 1078] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1078] write(3, "1000", 4 [pid 300] unlink("./195/binderfs" [pid 1078] <... write resumed>) = 4 [pid 1078] close(3) = 0 [pid 1078] symlink("/dev/binderfs", "./binderfs" [pid 300] <... unlink resumed>) = 0 [pid 1078] <... symlink resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 executing program [pid 1078] write(1, "executing program\n", 18 [pid 300] close(3 [pid 1078] <... write resumed>) = 18 [pid 1078] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... close resumed>) = 0 [pid 297] umount2("./192", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1078] <... mkdirat resumed>) = 0 [pid 300] rmdir("./195" [pid 299] <... restart_syscall resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1078] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1078] <... mount resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 299] umount2("./191", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1078] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] newfstatat(3, "", [pid 300] mkdir("./196", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 297] getdents64(3, [pid 1078] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1078] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 297] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1078] <... exit_group resumed>) = ? [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1078] +++ exited with 0 +++ [pid 299] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] newfstatat(AT_FDCWD, "./191/binderfs2", [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./191/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./191/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1079 attached ) = 4 [pid 297] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1079] set_robust_list(0x5555726b0660, 24 [pid 299] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1079] <... set_robust_list resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1079] chdir("./196" [pid 299] getdents64(4, [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1079 [pid 297] newfstatat(AT_FDCWD, "./192/binderfs2", [pid 1079] <... chdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1079] <... prctl resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1079] setpgid(0, 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] openat(AT_FDCWD, "./192/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1079] <... setpgid resumed>) = 0 [pid 299] close(4 [pid 297] <... openat resumed>) = 4 [pid 1079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(4, "", [pid 299] rmdir("./191/binderfs2" [pid 1079] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1079] write(3, "1000", 4 [pid 297] getdents64(4, [pid 1079] <... write resumed>) = 4 [pid 1079] close(3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1079] <... close resumed>) = 0 [pid 1079] symlink("/dev/binderfs", "./binderfs" [pid 299] umount2("./191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 1079] <... symlink resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 1079] write(1, "executing program\n", 18) = 18 [pid 299] unlink("./191/binderfs" [pid 1079] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... unlink resumed>) = 0 [pid 298] umount2("./196", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1079] <... mkdirat resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(4 [pid 299] getdents64(3, [pid 297] <... close resumed>) = 0 [pid 298] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./192/binderfs2" [pid 298] <... openat resumed>) = 3 [pid 1079] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1079] <... mount resumed>) = 0 [pid 299] close(3 [pid 298] newfstatat(3, "", [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./191") = 0 [pid 299] mkdir("./192", 0777 [pid 298] getdents64(3, [pid 297] umount2("./192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./192/binderfs", [pid 1079] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... mkdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1079] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] unlink("./192/binderfs" [pid 1079] exit_group(0 [pid 297] <... unlink resumed>) = 0 [pid 1079] <... exit_group resumed>) = ? [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./196/binderfs2", [pid 1079] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3./strace-static-x86_64: Process 1080 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1080 [pid 298] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... close resumed>) = 0 [pid 1080] set_robust_list(0x5555726b0660, 24 [pid 297] rmdir("./192" [pid 1080] <... set_robust_list resumed>) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./196/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 1080] chdir("./192") = 0 [pid 298] <... openat resumed>) = 4 [pid 297] mkdir("./193", 0777 [pid 1080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1080] <... prctl resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1080] setpgid(0, 0 [pid 298] getdents64(4, [pid 1080] <... setpgid resumed>) = 0 [pid 1080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 298] close(4 [pid 1080] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1080] write(3, "1000", 4) = 4 [pid 1080] close(3./strace-static-x86_64: Process 1081 attached ) = 0 [pid 300] umount2("./196", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./196/binderfs2" [pid 1081] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1080] symlink("/dev/binderfs", "./binderfs" [pid 1081] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1081 [pid 1081] chdir("./193" [pid 1080] <... symlink resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 298] umount2("./196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1081] <... chdir resumed>) = 0 [pid 300] newfstatat(3, "", [pid 1081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1080] write(1, "executing program\n", 18 [pid 1081] <... prctl resumed>) = 0 [pid 1080] <... write resumed>) = 18 [pid 300] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./196/binderfs", [pid 1081] setpgid(0, 0 [pid 1080] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1081] <... setpgid resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1080] <... mkdirat resumed>) = 0 [pid 300] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] unlink("./196/binderfs" [pid 1080] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 1080] <... mount resumed>) = 0 [pid 1080] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1080] <... openat resumed>) = 3 [pid 1081] <... openat resumed>) = 3 [pid 298] close(3 [pid 1081] write(3, "1000", 4 [pid 300] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 1081] <... write resumed>) = 4 [pid 298] rmdir("./196" [pid 1081] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1080] exit_group(0) = ? [pid 1081] <... close resumed>) = 0 [pid 1080] +++ exited with 0 +++ [pid 300] newfstatat(AT_FDCWD, "./196/binderfs2", [pid 298] <... rmdir resumed>) = 0 [pid 1081] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1081] write(1, "executing program\n", 18 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] mkdir("./197", 0777 [pid 300] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1081] <... write resumed>) = 18 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1081] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1081] <... mkdirat resumed>) = 0 [pid 300] openat(AT_FDCWD, "./196/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1081] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"./strace-static-x86_64: Process 1082 attached ) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1081] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] getdents64(4, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1082 [pid 1082] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./192", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1082] <... set_robust_list resumed>) = 0 [pid 300] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1081] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1082] chdir("./197" [pid 1081] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1081] <... exit_group resumed>) = ? [pid 299] <... openat resumed>) = 3 [pid 300] close(4 [pid 1082] <... chdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 1082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1082] <... prctl resumed>) = 0 [pid 300] rmdir("./196/binderfs2" [pid 1082] setpgid(0, 0 [pid 299] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 1082] <... setpgid resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1081] +++ exited with 0 +++ [pid 299] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./196/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 1082] <... openat resumed>) = 3 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./196" [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1082] write(3, "1000", 4 [pid 299] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1082] <... write resumed>) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... restart_syscall resumed>) = 0 [pid 1082] close(3 [pid 299] newfstatat(AT_FDCWD, "./192/binderfs2", [pid 1082] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] mkdir("./197", 0777 [pid 1082] symlink("/dev/binderfs", "./binderfs" [pid 300] <... mkdir resumed>) = 0 [pid 299] umount2("./192/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] umount2("./193", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1082] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1082] write(1, "executing program\n", 18 [pid 299] openat(AT_FDCWD, "./192/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1082] <... write resumed>) = 18 [pid 297] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... openat resumed>) = 4 [pid 1082] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] newfstatat(4, "", [pid 297] <... openat resumed>) = 3 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1083 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(3, "", ./strace-static-x86_64: Process 1083 attached [pid 1083] set_robust_list(0x5555726b0660, 24) = 0 [pid 1082] <... mkdirat resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1083] chdir("./197" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1083] <... chdir resumed>) = 0 [pid 1083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1083] setpgid(0, 0) = 0 [pid 1083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] getdents64(3, [pid 1082] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 1083] <... openat resumed>) = 3 [pid 299] <... close resumed>) = 0 [pid 1083] write(3, "1000", 4 [pid 299] rmdir("./192/binderfs2" [pid 1083] <... write resumed>) = 4 [pid 1083] close(3) = 0 [pid 1083] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 1083] write(1, "executing program\n", 18) = 18 [pid 1083] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1082] <... mount resumed>) = 0 [pid 1083] <... mkdirat resumed>) = 0 [pid 1083] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... umount2 resumed>) = 0 [pid 299] umount2("./192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1082] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1083] <... mount resumed>) = 0 [pid 1082] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./192/binderfs", [pid 297] newfstatat(AT_FDCWD, "./193/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./192/binderfs" [pid 297] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1083] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1083] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 1083] exit_group(0) = ? [pid 1082] exit_group(0 [pid 297] openat(AT_FDCWD, "./193/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1082] <... exit_group resumed>) = ? [pid 299] getdents64(3, [pid 297] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] newfstatat(4, "", [pid 1083] +++ exited with 0 +++ [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1082] +++ exited with 0 +++ [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] close(3 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./192" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] close(4 [pid 299] mkdir("./193", 0777 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./193/binderfs2" [pid 299] <... mkdir resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./193/binderfs", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./193/binderfs") = 0 [pid 297] getdents64(3, ./strace-static-x86_64: Process 1084 attached [pid 1084] set_robust_list(0x5555726b0660, 24) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1084] chdir("./193" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1084 [pid 297] close(3 [pid 1084] <... chdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 1084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] rmdir("./193" [pid 1084] <... prctl resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 1084] setpgid(0, 0) = 0 [pid 1084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 297] mkdir("./194", 0777 [pid 1084] <... openat resumed>) = 3 [pid 297] <... mkdir resumed>) = 0 [pid 1084] write(3, "1000", 4) = 4 [pid 300] umount2("./197", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1084] close(3) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1084] symlink("/dev/binderfs", "./binderfs") = 0 [pid 300] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 executing program [pid 1084] write(1, "executing program\n", 18 [pid 300] newfstatat(3, "", [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1084] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 1085 attached [pid 1084] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1085] set_robust_list(0x5555726b0660, 24) = 0 [pid 300] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1085 [pid 1085] chdir("./194" [pid 1084] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 1085] <... chdir resumed>) = 0 [pid 1084] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1085] setpgid(0, 0) = 0 [pid 1085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1085] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./197/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1085] write(3, "1000", 4 [pid 300] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1085] <... write resumed>) = 4 [pid 1084] <... mount resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./197/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1085] close(3) = 0 [pid 300] <... openat resumed>) = 4 [pid 1085] symlink("/dev/binderfs", "./binderfs" [pid 1084] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(4, "", [pid 1084] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 1085] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 1084] exit_group(0 [pid 300] getdents64(4, [pid 1085] write(1, "executing program\n", 18 [pid 1084] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1085] <... write resumed>) = 18 [pid 1084] +++ exited with 0 +++ [pid 300] close(4) = 0 [pid 300] rmdir("./197/binderfs2" [pid 1085] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] umount2("./197", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] newfstatat(3, "", [pid 300] unlink("./197/binderfs" [pid 1085] <... mkdirat resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 300] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 1085] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] getdents64(3, [pid 300] close(3) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] rmdir("./197" [pid 298] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./193", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] mkdir("./198", 0777) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1085] <... mount resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", [pid 1085] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(3, [pid 298] newfstatat(AT_FDCWD, "./197/binderfs2", ./strace-static-x86_64: Process 1086 attached [pid 1085] <... openat resumed>) = 3 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1086] set_robust_list(0x5555726b0660, 24 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1086 [pid 299] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1086] <... set_robust_list resumed>) = 0 [pid 1086] chdir("./198" [pid 1085] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./197/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1086] <... chdir resumed>) = 0 [pid 1086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... openat resumed>) = 4 [pid 1086] <... prctl resumed>) = 0 [pid 1085] <... exit_group resumed>) = ? [pid 298] newfstatat(4, "", [pid 1086] setpgid(0, 0) = 0 [pid 1086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1086] write(3, "1000", 4) = 4 [pid 1086] close(3) = 0 [pid 1086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1086] write(1, "executing program\n", 18executing program ) = 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1086] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1086] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1085] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... umount2 resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1086] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./193/binderfs2", [pid 298] close(4 [pid 1086] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./197/binderfs2" [pid 1086] <... openat resumed>) = 3 [pid 1086] exit_group(0 [pid 298] <... rmdir resumed>) = 0 [pid 299] umount2("./193/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1086] <... exit_group resumed>) = ? [pid 298] umount2("./197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./193/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1086] +++ exited with 0 +++ [pid 299] <... openat resumed>) = 4 [pid 298] newfstatat(AT_FDCWD, "./197/binderfs", [pid 299] newfstatat(4, "", [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] getdents64(4, [pid 298] unlink("./197/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 298] <... unlink resumed>) = 0 [pid 298] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] close(3 [pid 299] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 299] rmdir("./193/binderfs2" [pid 298] rmdir("./197" [pid 299] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 298] mkdir("./198", 0777 [pid 299] umount2("./193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./193/binderfs") = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] rmdir("./193"./strace-static-x86_64: Process 1087 attached [pid 1087] set_robust_list(0x5555726b0660, 24 [pid 299] <... rmdir resumed>) = 0 [pid 1087] <... set_robust_list resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1087 [pid 1087] chdir("./198" [pid 300] <... restart_syscall resumed>) = 0 [pid 1087] <... chdir resumed>) = 0 [pid 299] mkdir("./194", 0777 [pid 1087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1087] setpgid(0, 0) = 0 [pid 1087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./198", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 1087] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1087] write(3, "1000", 4 [pid 300] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1087] <... write resumed>) = 4 [pid 297] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 1088 attached [pid 1087] close(3 [pid 300] <... openat resumed>) = 3 [pid 1088] set_robust_list(0x5555726b0660, 24 [pid 300] newfstatat(3, "", [pid 1088] <... set_robust_list resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1088 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1088] chdir("./194" [pid 1087] <... close resumed>) = 0 [pid 300] getdents64(3, [pid 297] umount2("./194", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1087] symlink("/dev/binderfs", "./binderfs" [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1088] <... chdir resumed>) = 0 [pid 1087] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1088] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 1087] write(1, "executing program\n", 18 [pid 297] <... openat resumed>) = 3 [pid 1087] <... write resumed>) = 18 [pid 297] newfstatat(3, "", [pid 1087] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1088] <... prctl resumed>) = 0 [pid 297] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1088] setpgid(0, 0 [pid 1087] <... mkdirat resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1088] <... setpgid resumed>) = 0 [pid 1087] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1087] <... mount resumed>) = 0 [pid 300] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1088] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1088] write(3, "1000", 4 [pid 300] newfstatat(AT_FDCWD, "./198/binderfs2", [pid 1088] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1088] close(3 [pid 300] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1088] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1088] symlink("/dev/binderfs", "./binderfs" [pid 300] openat(AT_FDCWD, "./198/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./194/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1088] <... symlink resumed>) = 0 [pid 297] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 1088] write(1, "executing program\n", 18 [pid 1087] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] newfstatat(4, "", [pid 297] openat(AT_FDCWD, "./194/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1088] <... write resumed>) = 18 [pid 1087] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 297] newfstatat(4, "", [pid 1088] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1087] exit_group(0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1087] <... exit_group resumed>) = ? [pid 297] getdents64(4, [pid 1088] <... mkdirat resumed>) = 0 [pid 1087] +++ exited with 0 +++ [pid 300] getdents64(4, [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1087, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] close(4 [pid 1088] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] close(4 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... close resumed>) = 0 [pid 300] <... close resumed>) = 0 [pid 297] rmdir("./194/binderfs2" [pid 300] rmdir("./198/binderfs2" [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./194/binderfs" [pid 298] <... restart_syscall resumed>) = 0 [pid 1088] <... mount resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./198", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] close(3 [pid 298] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./194" [pid 1088] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1088] <... openat resumed>) = 3 [pid 300] unlink("./198/binderfs" [pid 298] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1088] exit_group(0 [pid 300] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] mkdir("./195", 0777 [pid 300] getdents64(3, [pid 1088] <... exit_group resumed>) = ? [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] close(3 [pid 298] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] rmdir("./198" [pid 298] newfstatat(AT_FDCWD, "./198/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] openat(AT_FDCWD, "./198/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1089 attached ) = 4 [pid 298] newfstatat(4, "", [pid 1088] +++ exited with 0 +++ [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1089] set_robust_list(0x5555726b0660, 24 [pid 298] getdents64(4, [pid 1089] <... set_robust_list resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1089 [pid 1089] chdir("./195" [pid 300] <... rmdir resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] getdents64(4, [pid 1089] <... chdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] close(4 [pid 1089] <... prctl resumed>) = 0 [pid 300] mkdir("./199", 0777 [pid 299] umount2("./194", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 1089] setpgid(0, 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./198/binderfs2" [pid 1089] <... setpgid resumed>) = 0 [pid 299] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 1089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... openat resumed>) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(3, [pid 1089] <... openat resumed>) = 3 [pid 298] umount2("./198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1089] write(3, "1000", 4 [pid 298] newfstatat(AT_FDCWD, "./198/binderfs", [pid 1089] <... write resumed>) = 4 [pid 1089] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1089] <... close resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1089] symlink("/dev/binderfs", "./binderfs" [pid 298] unlink("./198/binderfs"./strace-static-x86_64: Process 1090 attached [pid 1089] <... symlink resumed>) = 0 executing program [pid 299] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... unlink resumed>) = 0 [pid 1089] write(1, "executing program\n", 18 [pid 298] getdents64(3, [pid 1089] <... write resumed>) = 18 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1089] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] close(3 [pid 1090] set_robust_list(0x5555726b0660, 24 [pid 1089] <... mkdirat resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1090 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./198" [pid 1090] <... set_robust_list resumed>) = 0 [pid 299] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1090] chdir("./199" [pid 1089] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1090] <... chdir resumed>) = 0 [pid 1089] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./194/binderfs2", [pid 1090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1090] <... prctl resumed>) = 0 [pid 1090] setpgid(0, 0 [pid 298] mkdir("./199", 0777 [pid 299] umount2("./194/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1090] <... setpgid resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... mkdir resumed>) = 0 [pid 1089] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] openat(AT_FDCWD, "./194/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1089] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1090] <... openat resumed>) = 3 [pid 1089] exit_group(0 [pid 299] newfstatat(4, "", ./strace-static-x86_64: Process 1091 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1090] write(3, "1000", 4 [pid 1091] set_robust_list(0x5555726b0660, 24 [pid 299] getdents64(4, [pid 1091] <... set_robust_list resumed>) = 0 [pid 1090] <... write resumed>) = 4 [pid 1089] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1090] close(3 [pid 1091] chdir("./199" [pid 1089] +++ exited with 0 +++ [pid 1090] <... close resumed>) = 0 [pid 299] getdents64(4, [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1091 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1091] <... chdir resumed>) = 0 [pid 1091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1091] setpgid(0, 0) = 0 [pid 1091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1090] symlink("/dev/binderfs", "./binderfs" [pid 299] close(4 [pid 1091] write(3, "1000", 4) = 4 [pid 1091] close(3 [pid 297] <... restart_syscall resumed>) = 0 [pid 1090] <... symlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1091] <... close resumed>) = 0 executing program [pid 1090] write(1, "executing program\n", 18 [pid 299] rmdir("./194/binderfs2" [pid 1091] symlink("/dev/binderfs", "./binderfs" [pid 1090] <... write resumed>) = 18 [pid 299] <... rmdir resumed>) = 0 [pid 297] umount2("./195", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1090] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1091] <... symlink resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1090] <... mkdirat resumed>) = 0 [pid 297] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1090] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] umount2("./194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 executing program [pid 1091] write(1, "executing program\n", 18) = 18 [pid 1091] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 1090] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(3, "", [pid 1091] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] newfstatat(AT_FDCWD, "./194/binderfs", [pid 1090] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./194/binderfs" [pid 297] getdents64(3, [pid 1090] <... openat resumed>) = 3 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3 [pid 1090] exit_group(0) = ? [pid 1091] <... mount resumed>) = 0 [pid 1090] +++ exited with 0 +++ [pid 299] <... close resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1091] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] rmdir("./194" [pid 297] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1091] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... rmdir resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./195/binderfs2", [pid 1091] exit_group(0 [pid 299] mkdir("./195", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1091] <... exit_group resumed>) = ? [pid 297] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./195/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1091] +++ exited with 0 +++ [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 1092 attached [pid 297] close(4 [pid 1092] set_robust_list(0x5555726b0660, 24 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1092 [pid 297] <... close resumed>) = 0 [pid 1092] <... set_robust_list resumed>) = 0 [pid 297] rmdir("./195/binderfs2" [pid 298] umount2("./199", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1092] chdir("./195") = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1092] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(3, "", [pid 1092] <... openat resumed>) = 3 [pid 1092] write(3, "1000", 4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./195/binderfs", [pid 298] getdents64(3, [pid 1092] <... write resumed>) = 4 [pid 300] umount2("./199", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1092] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] unlink("./195/binderfs" [pid 1092] <... close resumed>) = 0 [pid 298] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1092] symlink("/dev/binderfs", "./binderfs" [pid 300] <... openat resumed>) = 3 [pid 297] <... unlink resumed>) = 0 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = 0 [pid 1092] <... symlink resumed>) = 0 executing program [pid 297] getdents64(3, [pid 1092] write(1, "executing program\n", 18 [pid 298] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1092] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = 0 [pid 297] close(3 [pid 1092] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./195" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./199/binderfs2", [pid 297] <... rmdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(AT_FDCWD, "./199/binderfs2", [pid 298] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1092] <... mkdirat resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] mkdir("./196", 0777 [pid 300] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./199/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] openat(AT_FDCWD, "./199/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... openat resumed>) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 1092] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... openat resumed>) = 4 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 298] newfstatat(4, "", [pid 300] rmdir("./199/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] umount2("./199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./199/binderfs") = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 ./strace-static-x86_64: Process 1093 attached [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1093] set_robust_list(0x5555726b0660, 24 [pid 298] getdents64(4, [pid 1093] <... set_robust_list resumed>) = 0 [pid 300] rmdir("./199" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1093 [pid 1093] chdir("./196" [pid 1092] <... mount resumed>) = 0 [pid 298] close(4 [pid 1093] <... chdir resumed>) = 0 [pid 1092] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 1093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1092] <... openat resumed>) = 3 [pid 298] rmdir("./199/binderfs2" [pid 1093] <... prctl resumed>) = 0 [pid 1092] exit_group(0 [pid 300] mkdir("./200", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 1093] setpgid(0, 0 [pid 1092] <... exit_group resumed>) = ? [pid 298] umount2("./199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1093] <... setpgid resumed>) = 0 [pid 1092] +++ exited with 0 +++ [pid 300] <... mkdir resumed>) = 0 [pid 1093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] newfstatat(AT_FDCWD, "./199/binderfs", [pid 1093] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./199/binderfs") = 0 ./strace-static-x86_64: Process 1094 attached [pid 298] getdents64(3, [pid 1093] write(3, "1000", 4 [pid 1094] set_robust_list(0x5555726b0660, 24 [pid 1093] <... write resumed>) = 4 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1094 [pid 1094] <... set_robust_list resumed>) = 0 [pid 1093] close(3 [pid 1094] chdir("./200" [pid 1093] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1094] <... chdir resumed>) = 0 [pid 1093] symlink("/dev/binderfs", "./binderfs" [pid 299] <... restart_syscall resumed>) = 0 [pid 298] close(3 [pid 1094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] <... close resumed>) = 0 [pid 1094] <... prctl resumed>) = 0 [pid 1093] <... symlink resumed>) = 0 [pid 298] rmdir("./199"executing program [pid 1094] setpgid(0, 0 [pid 1093] write(1, "executing program\n", 18 [pid 299] umount2("./195", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 1094] <... setpgid resumed>) = 0 [pid 1093] <... write resumed>) = 18 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1093] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1094] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 298] mkdir("./200", 0777 [pid 1094] write(3, "1000", 4 [pid 1093] <... mkdirat resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... mkdir resumed>) = 0 [pid 1094] <... write resumed>) = 4 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1094] close(3 [pid 1093] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1094] <... close resumed>) = 0 [pid 299] getdents64(3, [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1094] symlink("/dev/binderfs", "./binderfs" [pid 1093] <... mount resumed>) = 0 ./strace-static-x86_64: Process 1095 attached [pid 1094] <... symlink resumed>) = 0 [pid 1093] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1095] set_robust_list(0x5555726b0660, 24 [pid 1094] write(1, "executing program\n", 18 [pid 299] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 1095] <... set_robust_list resumed>) = 0 [pid 1094] <... write resumed>) = 18 [pid 1093] <... openat resumed>) = 3 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1095 [pid 1095] chdir("./200" [pid 1094] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... umount2 resumed>) = 0 [pid 1095] <... chdir resumed>) = 0 [pid 1093] exit_group(0 [pid 1095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1095] setpgid(0, 0) = 0 [pid 1094] <... mkdirat resumed>) = 0 [pid 1093] <... exit_group resumed>) = ? [pid 299] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1094] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1095] <... openat resumed>) = 3 [pid 1093] +++ exited with 0 +++ [pid 1095] write(3, "1000", 4 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1095] <... write resumed>) = 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1095] close(3) = 0 [pid 1094] <... mount resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./195/binderfs2", [pid 1095] symlink("/dev/binderfs", "./binderfs" [pid 1094] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1095] <... symlink resumed>) = 0 [pid 299] umount2("./195/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 1095] write(1, "executing program\n", 18 [pid 1094] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1095] <... write resumed>) = 18 [pid 299] openat(AT_FDCWD, "./195/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1095] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1094] exit_group(0 [pid 299] <... openat resumed>) = 4 [pid 1095] <... mkdirat resumed>) = 0 [pid 1094] <... exit_group resumed>) = ? [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, [pid 1095] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 1095] <... mount resumed>) = 0 [pid 1094] +++ exited with 0 +++ [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] close(4 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... close resumed>) = 0 [pid 1095] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] rmdir("./195/binderfs2" [pid 1095] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1095] exit_group(0 [pid 299] newfstatat(AT_FDCWD, "./195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1095] <... exit_group resumed>) = ? [pid 299] unlink("./195/binderfs" [pid 1095] +++ exited with 0 +++ [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] close(3) = 0 [pid 299] rmdir("./195") = 0 [pid 299] mkdir("./196", 0777) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 1096 attached [pid 1096] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] umount2("./200", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1096] chdir("./196") = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1096 [pid 298] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1096] <... prctl resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 297] <... restart_syscall resumed>) = 0 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./196", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1096] setpgid(0, 0 [pid 297] <... openat resumed>) = 3 [pid 1096] <... setpgid resumed>) = 0 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(3, [pid 1096] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1096] write(3, "1000", 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1096] <... write resumed>) = 4 [pid 1096] close(3 [pid 298] newfstatat(AT_FDCWD, "./200/binderfs2", [pid 297] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 1096] <... close resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 1096] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./200/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1096] <... symlink resumed>) = 0 [pid 297] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1096] write(1, "executing program\n", 18 [pid 298] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1096] <... write resumed>) = 18 [pid 300] umount2("./200", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./196/binderfs2", [pid 1096] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... openat resumed>) = 3 [pid 298] getdents64(4, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./196/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1096] <... mkdirat resumed>) = 0 [pid 300] newfstatat(3, "", [pid 298] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 298] rmdir("./200/binderfs2" [pid 1096] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", [pid 300] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] getdents64(4, [pid 298] umount2("./200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./200/binderfs", [pid 297] getdents64(4, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] unlink("./200/binderfs" [pid 297] close(4 [pid 1096] <... mount resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./196/binderfs2" [pid 1096] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./200" [pid 1096] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./200/binderfs2", [pid 297] newfstatat(AT_FDCWD, "./196/binderfs", [pid 1096] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./201", 0777 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1096] <... exit_group resumed>) = ? [pid 300] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 297] unlink("./196/binderfs" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] openat(AT_FDCWD, "./200/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./196" [pid 300] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1097 [pid 300] newfstatat(4, "", ./strace-static-x86_64: Process 1097 attached [pid 1096] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] mkdir("./197", 0777 [pid 1097] set_robust_list(0x5555726b0660, 24 [pid 300] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 1097] <... set_robust_list resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4 [pid 299] umount2("./196", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... close resumed>) = 0 [pid 1097] chdir("./201" [pid 300] rmdir("./200/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1097] <... chdir resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1098 attached [pid 1097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 1098] set_robust_list(0x5555726b0660, 24 [pid 1097] <... prctl resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./200/binderfs", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(3, [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1098 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1098] <... set_robust_list resumed>) = 0 [pid 1097] setpgid(0, 0 [pid 300] unlink("./200/binderfs" [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1098] chdir("./197" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... unlink resumed>) = 0 [pid 1097] <... setpgid resumed>) = 0 [pid 1098] <... chdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./196/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] getdents64(3, [pid 299] umount2("./196/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1098] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1098] setpgid(0, 0 [pid 1097] <... openat resumed>) = 3 [pid 300] close(3 [pid 299] openat(AT_FDCWD, "./196/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1098] <... setpgid resumed>) = 0 [pid 1097] write(3, "1000", 4 [pid 300] <... close resumed>) = 0 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 1098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] rmdir("./200" [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./196/binderfs2" [pid 1097] <... write resumed>) = 4 [pid 299] <... rmdir resumed>) = 0 [pid 1098] <... openat resumed>) = 3 [pid 1097] close(3 [pid 300] <... rmdir resumed>) = 0 [pid 299] umount2("./196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1098] write(3, "1000", 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1098] <... write resumed>) = 4 [pid 299] newfstatat(AT_FDCWD, "./196/binderfs", [pid 1098] close(3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1098] <... close resumed>) = 0 [pid 1098] symlink("/dev/binderfs", "./binderfs" [pid 299] unlink("./196/binderfs" [pid 1098] <... symlink resumed>) = 0 [pid 1097] <... close resumed>) = 0 [pid 300] mkdir("./201", 0777executing program [pid 1098] write(1, "executing program\n", 18 [pid 1097] symlink("/dev/binderfs", "./binderfs" [pid 299] <... unlink resumed>) = 0 [pid 1098] <... write resumed>) = 18 [pid 1098] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1097] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 299] getdents64(3, [pid 1098] <... mkdirat resumed>) = 0 [pid 1097] write(1, "executing program\n", 18 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1098] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 299] close(3 [pid 1097] <... write resumed>) = 18 [pid 1098] <... mount resumed>) = 0 ./strace-static-x86_64: Process 1099 attached [pid 1098] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... close resumed>) = 0 [pid 1099] set_robust_list(0x5555726b0660, 24 [pid 1098] <... openat resumed>) = 3 [pid 1097] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] rmdir("./196" [pid 1099] <... set_robust_list resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1099 [pid 1098] exit_group(0 [pid 1099] chdir("./201" [pid 1097] <... mkdirat resumed>) = 0 [pid 1098] <... exit_group resumed>) = ? [pid 299] <... rmdir resumed>) = 0 [pid 1097] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1098] +++ exited with 0 +++ [pid 1097] <... mount resumed>) = 0 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1097] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1097] <... openat resumed>) = 3 [pid 1097] exit_group(0) = ? [pid 1099] <... chdir resumed>) = 0 [pid 299] mkdir("./197", 0777 [pid 1099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... mkdir resumed>) = 0 [pid 1099] <... prctl resumed>) = 0 [pid 1097] +++ exited with 0 +++ [pid 1099] setpgid(0, 0) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 1100 attached [pid 1100] set_robust_list(0x5555726b0660, 24 [pid 1099] <... openat resumed>) = 3 [pid 1100] <... set_robust_list resumed>) = 0 [pid 1099] write(3, "1000", 4 [pid 1100] chdir("./197" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1100 [pid 1099] <... write resumed>) = 4 [pid 1100] <... chdir resumed>) = 0 [pid 1100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1100] setpgid(0, 0) = 0 [pid 1099] close(3 [pid 1100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1099] <... close resumed>) = 0 [pid 1099] symlink("/dev/binderfs", "./binderfs" [pid 1100] <... openat resumed>) = 3 executing program [pid 1100] write(3, "1000", 4 [pid 1099] <... symlink resumed>) = 0 [pid 1100] <... write resumed>) = 4 [pid 1100] close(3 [pid 1099] write(1, "executing program\n", 18 [pid 1100] <... close resumed>) = 0 [pid 1099] <... write resumed>) = 18 executing program [pid 1100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1100] write(1, "executing program\n", 18) = 18 [pid 1100] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1099] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 1099] <... mkdirat resumed>) = 0 [pid 298] umount2("./201", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1100] <... mkdirat resumed>) = 0 [pid 298] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 1100] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(3, "", [pid 1099] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... restart_syscall resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1099] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 297] umount2("./197", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1100] <... mount resumed>) = 0 [pid 1099] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1099] <... openat resumed>) = 3 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 1100] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1099] exit_group(0 [pid 297] newfstatat(3, "", [pid 1100] exit_group(0 [pid 1099] <... exit_group resumed>) = ? [pid 298] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1100] <... exit_group resumed>) = ? [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 1100] +++ exited with 0 +++ [pid 1099] +++ exited with 0 +++ [pid 298] newfstatat(AT_FDCWD, "./201/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... restart_syscall resumed>) = 0 [pid 298] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./201/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] umount2("./201", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(4, "", [pid 297] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] getdents64(4, [pid 300] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] newfstatat(AT_FDCWD, "./197/binderfs2", [pid 300] newfstatat(3, "", [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 298] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... close resumed>) = 0 [pid 297] openat(AT_FDCWD, "./197/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./201/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 298] <... rmdir resumed>) = 0 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, [pid 299] <... restart_syscall resumed>) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] umount2("./201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./197", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(AT_FDCWD, "./201/binderfs", [pid 297] close(4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./201/binderfs2", [pid 299] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./201/binderfs" [pid 297] rmdir("./197/binderfs2" [pid 300] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 298] <... unlink resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(3, "", [pid 300] openat(AT_FDCWD, "./201/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... openat resumed>) = 4 [pid 299] getdents64(3, [pid 298] getdents64(3, [pid 297] umount2("./197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] close(3 [pid 297] newfstatat(AT_FDCWD, "./197/binderfs", [pid 298] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] rmdir("./201" [pid 297] unlink("./197/binderfs" [pid 300] newfstatat(4, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 297] getdents64(3, [pid 298] mkdir("./202", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./197" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 300] getdents64(4, [pid 299] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 299] newfstatat(AT_FDCWD, "./197/binderfs2", [pid 297] mkdir("./198", 0777 [pid 300] <... close resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... mkdir resumed>) = 0 [pid 300] rmdir("./201/binderfs2" [pid 299] umount2("./197/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1101 attached ./strace-static-x86_64: Process 1102 attached [pid 300] umount2("./201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./197/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1102] set_robust_list(0x5555726b0660, 24 [pid 1101] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... openat resumed>) = 4 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1101 [pid 1102] <... set_robust_list resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./201/binderfs", [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1102 [pid 1101] <... set_robust_list resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] getdents64(4, [pid 1102] chdir("./198" [pid 1101] chdir("./202" [pid 300] unlink("./201/binderfs" [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1102] <... chdir resumed>) = 0 [pid 1102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1102] setpgid(0, 0) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] getdents64(4, [pid 1101] <... chdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] close(4 [pid 1101] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 1102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1101] setpgid(0, 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] <... close resumed>) = 0 [pid 1102] <... openat resumed>) = 3 [pid 1101] <... setpgid resumed>) = 0 [pid 300] close(3 [pid 299] rmdir("./197/binderfs2" [pid 1102] write(3, "1000", 4) = 4 [pid 1102] close(3) = 0 [pid 1102] symlink("/dev/binderfs", "./binderfs" [pid 299] <... rmdir resumed>) = 0 [pid 1102] <... symlink resumed>) = 0 [pid 1101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... close resumed>) = 0 [pid 299] umount2("./197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] rmdir("./201" [pid 1102] write(1, "executing program\n", 18) = 18 executing program [pid 1102] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 1101] <... openat resumed>) = 3 [pid 300] mkdir("./202", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1101] write(3, "1000", 4 [pid 299] newfstatat(AT_FDCWD, "./197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1101] <... write resumed>) = 4 [pid 299] unlink("./197/binderfs" [pid 1101] close(3 [pid 1102] <... mkdirat resumed>) = 0 [pid 1101] <... close resumed>) = 0 [pid 299] <... unlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 [pid 1101] symlink("/dev/binderfs", "./binderfs" [pid 299] getdents64(3, [pid 1102] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1101] <... symlink resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 1102] <... mount resumed>) = 0 [pid 1101] write(1, "executing program\n", 18 [pid 299] rmdir("./197"./strace-static-x86_64: Process 1103 attached [pid 1103] set_robust_list(0x5555726b0660, 24) = 0 executing program [pid 1102] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1103] chdir("./202" [pid 1101] <... write resumed>) = 18 [pid 1103] <... chdir resumed>) = 0 [pid 1102] <... openat resumed>) = 3 [pid 1101] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1103 [pid 299] <... rmdir resumed>) = 0 [pid 1103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1102] exit_group(0 [pid 1103] <... prctl resumed>) = 0 [pid 1103] setpgid(0, 0 [pid 1102] <... exit_group resumed>) = ? [pid 1101] <... mkdirat resumed>) = 0 [pid 299] mkdir("./198", 0777 [pid 1101] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1103] <... setpgid resumed>) = 0 [pid 1102] +++ exited with 0 +++ [pid 299] <... mkdir resumed>) = 0 [pid 1103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1101] <... mount resumed>) = 0 [pid 1103] <... openat resumed>) = 3 [pid 1101] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1103] write(3, "1000", 4 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1103] <... write resumed>) = 4 [pid 1103] close(3) = 0 [pid 1103] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1101] <... openat resumed>) = 3 ./strace-static-x86_64: Process 1104 attached [pid 1104] set_robust_list(0x5555726b0660, 24) = 0 [pid 1101] exit_group(0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1104 [pid 297] <... restart_syscall resumed>) = 0 [pid 1104] chdir("./198" executing program [pid 1103] write(1, "executing program\n", 18 [pid 1101] <... exit_group resumed>) = ? [pid 1104] <... chdir resumed>) = 0 [pid 1103] <... write resumed>) = 18 [pid 1104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1103] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1104] <... prctl resumed>) = 0 [pid 1103] <... mkdirat resumed>) = 0 [pid 1101] +++ exited with 0 +++ [pid 297] umount2("./198", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1104] setpgid(0, 0) = 0 [pid 1104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1103] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1104] write(3, "1000", 4 [pid 1103] <... mount resumed>) = 0 [pid 297] <... openat resumed>) = 3 [pid 1104] <... write resumed>) = 4 [pid 1104] close(3 [pid 297] newfstatat(3, "", [pid 1104] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] getdents64(3, [pid 1103] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 executing program [pid 1104] write(1, "executing program\n", 18 [pid 1103] <... openat resumed>) = 3 [pid 297] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1104] <... write resumed>) = 18 [pid 1104] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1103] exit_group(0 [pid 297] <... umount2 resumed>) = 0 [pid 1104] <... mkdirat resumed>) = 0 [pid 1103] <... exit_group resumed>) = ? [pid 297] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1103] +++ exited with 0 +++ [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./198/binderfs2", [pid 1104] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1104] <... mount resumed>) = 0 [pid 297] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1104] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./198/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1104] <... openat resumed>) = 3 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, [pid 1104] exit_group(0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1104] <... exit_group resumed>) = ? [pid 297] close(4) = 0 [pid 297] rmdir("./198/binderfs2" [pid 1104] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 299] umount2("./198", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 299] <... openat resumed>) = 3 [pid 298] umount2("./202", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(3, "", [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 298] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./198/binderfs", [pid 299] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] newfstatat(3, "", [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] unlink("./198/binderfs" [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, [pid 299] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] newfstatat(AT_FDCWD, "./198/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 299] umount2("./198/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./198/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./198" [pid 298] newfstatat(AT_FDCWD, "./202/binderfs2", [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 297] <... rmdir resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] getdents64(4, [pid 298] openat(AT_FDCWD, "./202/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 4 [pid 299] close(4) = 0 [pid 298] newfstatat(4, "", [pid 299] rmdir("./198/binderfs2" [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] mkdir("./199", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 299] umount2("./198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] close(4 [pid 297] <... mkdir resumed>) = 0 [pid 300] umount2("./202", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./198/binderfs", [pid 298] rmdir("./202/binderfs2" [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] newfstatat(3, "", [pid 299] unlink("./198/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 298] umount2("./202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 1105 attached [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1105] set_robust_list(0x5555726b0660, 24 [pid 300] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./202/binderfs", [pid 1105] <... set_robust_list resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1105 [pid 299] close(3 [pid 1105] chdir("./199" [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./198" [pid 298] unlink("./202/binderfs" [pid 1105] <... chdir resumed>) = 0 [pid 300] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 298] <... unlink resumed>) = 0 [pid 1105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1105] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./202/binderfs2", [pid 298] getdents64(3, [pid 1105] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] mkdir("./199", 0777 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 298] close(3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... close resumed>) = 0 [pid 1105] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./202/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] rmdir("./202" [pid 1105] write(3, "1000", 4) = 4 [pid 300] newfstatat(4, "", [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 1106 attached [pid 1105] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1106] set_robust_list(0x5555726b0660, 24 [pid 1105] <... close resumed>) = 0 [pid 1106] <... set_robust_list resumed>) = 0 [pid 1105] symlink("/dev/binderfs", "./binderfs" [pid 300] getdents64(4, [pid 1106] chdir("./199" [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 298] mkdir("./203", 0777 [pid 1106] <... chdir resumed>) = 0 [pid 1105] <... symlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1106 [pid 298] <... mkdir resumed>) = 0 [pid 1106] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 300] close(4 [pid 1106] <... prctl resumed>) = 0 [pid 1105] write(1, "executing program\n", 18) = 18 [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./202/binderfs2" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1106] setpgid(0, 0 [pid 1105] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 1107 attached [pid 1106] <... setpgid resumed>) = 0 [pid 300] umount2("./202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1105] <... mkdirat resumed>) = 0 [pid 300] unlink("./202/binderfs" [pid 1106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... unlink resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1107 [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./202") = 0 [pid 1107] set_robust_list(0x5555726b0660, 24 [pid 300] mkdir("./203", 0777 [pid 1107] <... set_robust_list resumed>) = 0 [pid 1106] <... openat resumed>) = 3 [pid 1105] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1107] chdir("./203"./strace-static-x86_64: Process 1108 attached [pid 1105] <... mount resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1108 [pid 1107] <... chdir resumed>) = 0 [pid 1106] write(3, "1000", 4 [pid 1107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1106] <... write resumed>) = 4 [pid 1108] set_robust_list(0x5555726b0660, 24 [pid 1106] close(3 [pid 1107] <... prctl resumed>) = 0 [pid 1108] <... set_robust_list resumed>) = 0 [pid 1105] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1106] <... close resumed>) = 0 [pid 1107] setpgid(0, 0 [pid 1106] symlink("/dev/binderfs", "./binderfs" [pid 1107] <... setpgid resumed>) = 0 [pid 1108] chdir("./203") = 0 [pid 1107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1107] <... openat resumed>) = 3 [pid 1108] setpgid(0, 0) = 0 [pid 1108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1105] <... openat resumed>) = 3 [pid 1108] <... openat resumed>) = 3 [pid 1108] write(3, "1000", 4) = 4 [pid 1106] <... symlink resumed>) = 0 [pid 1107] write(3, "1000", 4 [pid 1108] close(3) = 0 executing program executing program [pid 1107] <... write resumed>) = 4 [pid 1106] write(1, "executing program\n", 18 [pid 1105] exit_group(0 [pid 1107] close(3 [pid 1106] <... write resumed>) = 18 [pid 1107] <... close resumed>) = 0 [pid 1105] <... exit_group resumed>) = ? [pid 1107] symlink("/dev/binderfs", "./binderfs" [pid 1108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1107] <... symlink resumed>) = 0 [pid 1108] write(1, "executing program\n", 18) = 18 [pid 1108] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 executing program [pid 1108] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1105] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1106] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1106] <... mkdirat resumed>) = 0 [pid 1107] write(1, "executing program\n", 18) = 18 [pid 1108] <... mount resumed>) = 0 [pid 1108] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1107] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1108] <... openat resumed>) = 3 [pid 1108] exit_group(0) = ? [pid 1107] <... mkdirat resumed>) = 0 [pid 1106] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1108] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1107] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1106] <... mount resumed>) = 0 [pid 1106] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1107] <... mount resumed>) = 0 [pid 1106] exit_group(0 [pid 1107] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1106] <... exit_group resumed>) = ? [pid 1107] <... openat resumed>) = 3 [pid 1107] exit_group(0 [pid 1106] +++ exited with 0 +++ [pid 1107] <... exit_group resumed>) = ? [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1107] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] umount2("./203", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", [pid 299] umount2("./199", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... restart_syscall resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./203", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] getdents64(3, [pid 299] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 298] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./199", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(3, [pid 300] <... umount2 resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 299] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(3, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./203/binderfs2", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = 0 [pid 297] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] newfstatat(AT_FDCWD, "./199/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./203/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = 0 [pid 299] openat(AT_FDCWD, "./199/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(AT_FDCWD, "./203/binderfs2", [pid 300] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] newfstatat(4, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(AT_FDCWD, "./199/binderfs2", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] openat(AT_FDCWD, "./203/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] getdents64(4, [pid 298] <... openat resumed>) = 4 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(4, "", [pid 299] close(4 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... close resumed>) = 0 [pid 298] getdents64(4, [pid 299] rmdir("./199/binderfs2" [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] umount2("./199/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(4, [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] close(4 [pid 298] close(4 [pid 297] openat(AT_FDCWD, "./199/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... close resumed>) = 0 [pid 299] umount2("./199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 300] rmdir("./203/binderfs2" [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] rmdir("./203/binderfs2" [pid 297] <... openat resumed>) = 4 [pid 300] <... rmdir resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./199/binderfs", [pid 298] <... rmdir resumed>) = 0 [pid 300] umount2("./203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(4, "", [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] newfstatat(AT_FDCWD, "./203/binderfs", [pid 299] unlink("./199/binderfs" [pid 298] umount2("./203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 300] unlink("./203/binderfs" [pid 298] newfstatat(AT_FDCWD, "./203/binderfs", [pid 299] getdents64(3, [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... unlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] unlink("./203/binderfs" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(3, [pid 299] close(3 [pid 298] <... unlink resumed>) = 0 [pid 297] getdents64(4, [pid 299] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] rmdir("./199" [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(3 [pid 299] <... rmdir resumed>) = 0 [pid 298] getdents64(3, [pid 297] close(4 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./203" [pid 300] <... close resumed>) = 0 [pid 299] mkdir("./200", 0777 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 300] rmdir("./203" [pid 297] rmdir("./199/binderfs2" [pid 300] <... rmdir resumed>) = 0 [pid 298] mkdir("./204", 0777 [pid 297] <... rmdir resumed>) = 0 [pid 300] mkdir("./204", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 297] umount2("./199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] newfstatat(AT_FDCWD, "./199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 1110 attached [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1110 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1109 [pid 297] unlink("./199/binderfs" [pid 1110] set_robust_list(0x5555726b0660, 24) = 0 [pid 1110] chdir("./200") = 0 [pid 1110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1110] setpgid(0, 0) = 0 executing program [pid 1110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 1109 attached ) = 3 [pid 297] <... unlink resumed>) = 0 [pid 1110] write(3, "1000", 4) = 4 [pid 1110] close(3) = 0 [pid 1110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1110] write(1, "executing program\n", 18) = 18 [pid 1110] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 1111 attached ) = 0 [pid 1109] set_robust_list(0x5555726b0660, 24 [pid 297] getdents64(3, [pid 1111] set_robust_list(0x5555726b0660, 24 [pid 1109] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1111] <... set_robust_list resumed>) = 0 [pid 1111] chdir("./204" [pid 1110] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1109] chdir("./204" [pid 297] close(3 [pid 1111] <... chdir resumed>) = 0 [pid 1110] <... mount resumed>) = 0 [pid 1109] <... chdir resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1111 [pid 297] <... close resumed>) = 0 [pid 1111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] rmdir("./199" [pid 1109] <... prctl resumed>) = 0 [pid 1111] <... prctl resumed>) = 0 [pid 1111] setpgid(0, 0) = 0 [pid 1111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... rmdir resumed>) = 0 [pid 1109] setpgid(0, 0 [pid 297] mkdir("./200", 0777 [pid 1109] <... setpgid resumed>) = 0 [pid 1111] <... openat resumed>) = 3 [pid 1110] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1111] write(3, "1000", 4) = 4 [pid 1110] exit_group(0 [pid 1109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... mkdir resumed>) = 0 [pid 1111] close(3) = 0 [pid 1110] <... exit_group resumed>) = ? [pid 1111] symlink("/dev/binderfs", "./binderfs" [pid 1110] +++ exited with 0 +++ [pid 1109] <... openat resumed>) = 3 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1109] write(3, "1000", 4 [pid 1111] <... symlink resumed>) = 0 [pid 1109] <... write resumed>) = 4 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 1112 attached executing program [pid 1111] write(1, "executing program\n", 18 [pid 1112] set_robust_list(0x5555726b0660, 24 [pid 1111] <... write resumed>) = 18 [pid 1112] <... set_robust_list resumed>) = 0 [pid 1111] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1112] chdir("./200" [pid 1109] close(3 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1112 [pid 1109] <... close resumed>) = 0 [pid 1109] symlink("/dev/binderfs", "./binderfs" [pid 1112] <... chdir resumed>) = 0 [pid 1111] <... mkdirat resumed>) = 0 executing program [pid 1109] <... symlink resumed>) = 0 [pid 1112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1109] write(1, "executing program\n", 18 [pid 1112] <... prctl resumed>) = 0 [pid 1112] setpgid(0, 0 [pid 1109] <... write resumed>) = 18 [pid 1112] <... setpgid resumed>) = 0 [pid 1112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1109] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1112] <... openat resumed>) = 3 [pid 1111] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1112] write(3, "1000", 4 [pid 1111] <... mount resumed>) = 0 [pid 1109] <... mkdirat resumed>) = 0 [pid 1112] <... write resumed>) = 4 [pid 1112] close(3) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 1112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1109] mount(NULL, "./binderfs2", "binder", 0, "stats=global,"executing program [pid 1112] write(1, "executing program\n", 18) = 18 [pid 1112] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] umount2("./200", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1112] <... mkdirat resumed>) = 0 [pid 1111] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1109] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1111] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1112] mount(NULL, "./binderfs2", "binder", 0, "stats=global,") = 0 [pid 1111] exit_group(0 [pid 1109] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... openat resumed>) = 3 [pid 1111] <... exit_group resumed>) = ? [pid 299] newfstatat(3, "", [pid 1111] +++ exited with 0 +++ [pid 1109] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1112] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1109] exit_group(0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 299] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1112] <... openat resumed>) = 3 [pid 1109] <... exit_group resumed>) = ? [pid 1112] exit_group(0) = ? [pid 300] <... restart_syscall resumed>) = 0 [pid 1112] +++ exited with 0 +++ [pid 1109] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./204", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... umount2 resumed>) = 0 [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./200/binderfs2", [pid 300] newfstatat(3, "", [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] getdents64(3, [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./200/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... openat resumed>) = 4 [pid 300] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = 0 [pid 299] getdents64(4, [pid 297] <... restart_syscall resumed>) = 0 [pid 297] umount2("./200", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... openat resumed>) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] close(4 [pid 300] newfstatat(AT_FDCWD, "./204/binderfs2", [pid 299] <... close resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] rmdir("./200/binderfs2" [pid 300] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... rmdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./204/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] newfstatat(AT_FDCWD, "./200/binderfs2", [pid 300] <... openat resumed>) = 4 [pid 299] umount2("./200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(4, "", [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./200/binderfs", [pid 300] getdents64(4, [pid 297] umount2("./200/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./200/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... openat resumed>) = 4 [pid 300] getdents64(4, [pid 299] unlink("./200/binderfs" [pid 297] newfstatat(4, "", [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] close(4 [pid 297] getdents64(4, [pid 300] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] rmdir("./204/binderfs2" [pid 299] <... unlink resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4 [pid 300] <... rmdir resumed>) = 0 [pid 298] umount2("./204", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./200/binderfs2" [pid 300] umount2("./204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 298] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 297] umount2("./200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(AT_FDCWD, "./200/binderfs", [pid 300] newfstatat(AT_FDCWD, "./204/binderfs", [pid 299] close(3 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... close resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./204/binderfs" [pid 299] rmdir("./200" [pid 297] unlink("./200/binderfs" [pid 298] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 299] mkdir("./201", 0777 [pid 298] newfstatat(AT_FDCWD, "./204/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./204/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] rmdir("./200" [pid 298] <... openat resumed>) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] getdents64(4, [pid 297] mkdir("./201", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(4 [pid 297] <... mkdir resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./204/binderfs2" [pid 300] close(3 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1113 ./strace-static-x86_64: Process 1113 attached [pid 300] <... close resumed>) = 0 [pid 300] rmdir("./204" [pid 1113] set_robust_list(0x5555726b0660, 24 [pid 300] <... rmdir resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1113] <... set_robust_list resumed>) = 0 [pid 300] mkdir("./205", 0777 [pid 1113] chdir("./201" [pid 298] umount2("./204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1113] <... chdir resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 1114 attached [pid 1113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(AT_FDCWD, "./204/binderfs", [pid 1113] <... prctl resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1114] set_robust_list(0x5555726b0660, 24 [pid 1113] setpgid(0, 0 [pid 298] unlink("./204/binderfs" [pid 1114] <... set_robust_list resumed>) = 0 [pid 1113] <... setpgid resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... unlink resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1114 [pid 1114] chdir("./201" [pid 1113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] getdents64(3, [pid 1114] <... chdir resumed>) = 0 [pid 1113] <... openat resumed>) = 3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] close(3) = 0 [pid 1113] write(3, "1000", 4) = 4 [pid 298] rmdir("./204" [pid 1113] close(3 [pid 1114] <... prctl resumed>) = 0 [pid 1113] <... close resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 1115 attached [pid 1114] setpgid(0, 0 [pid 1115] set_robust_list(0x5555726b0660, 24 [pid 1114] <... setpgid resumed>) = 0 [pid 1113] symlink("/dev/binderfs", "./binderfs" [pid 1115] <... set_robust_list resumed>) = 0 [pid 1114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1113] <... symlink resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1115 [pid 298] mkdir("./205", 0777 [pid 1115] chdir("./205" [pid 1114] <... openat resumed>) = 3 [pid 298] <... mkdir resumed>) = 0 [pid 1115] <... chdir resumed>) = 0 [pid 1114] write(3, "1000", 4 [pid 1113] write(1, "executing program\n", 18executing program [pid 1114] <... write resumed>) = 4 [pid 1115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1114] close(3 [pid 1113] <... write resumed>) = 18 [pid 1115] <... prctl resumed>) = 0 [pid 1113] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1115] setpgid(0, 0) = 0 [pid 1114] <... close resumed>) = 0 [pid 1113] <... mkdirat resumed>) = 0 [pid 1115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1114] symlink("/dev/binderfs", "./binderfs" [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1114] <... symlink resumed>) = 0 executing program [pid 1115] <... openat resumed>) = 3 [pid 1114] write(1, "executing program\n", 18 [pid 1115] write(3, "1000", 4 [pid 1114] <... write resumed>) = 18 [pid 1113] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1114] mkdirat(AT_FDCWD, "./binderfs2", 0777./strace-static-x86_64: Process 1116 attached [pid 1115] <... write resumed>) = 4 [pid 1114] <... mkdirat resumed>) = 0 [pid 1113] <... mount resumed>) = 0 [pid 1115] close(3) = 0 [pid 1115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1116] set_robust_list(0x5555726b0660, 24) = 0 [pid 1114] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1116 [pid 1116] chdir("./205" [pid 1113] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1116] <... chdir resumed>) = 0 executing program [pid 1116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1115] write(1, "executing program\n", 18 [pid 1113] <... openat resumed>) = 3 [pid 1115] <... write resumed>) = 18 [pid 1115] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1116] <... prctl resumed>) = 0 [pid 1115] <... mkdirat resumed>) = 0 [pid 1114] <... mount resumed>) = 0 [pid 1113] exit_group(0 [pid 1116] setpgid(0, 0 [pid 1113] <... exit_group resumed>) = ? [pid 1116] <... setpgid resumed>) = 0 [pid 1114] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1115] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1114] <... openat resumed>) = 3 [pid 1113] +++ exited with 0 +++ [pid 1116] <... openat resumed>) = 3 [pid 1115] <... mount resumed>) = 0 [pid 1114] exit_group(0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1115] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1116] write(3, "1000", 4 [pid 1114] <... exit_group resumed>) = ? [pid 1115] <... openat resumed>) = 3 [pid 1115] exit_group(0) = ? [pid 1114] +++ exited with 0 +++ [pid 1116] <... write resumed>) = 4 [pid 1115] +++ exited with 0 +++ [pid 299] umount2("./201", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1116] close(3 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1116] <... close resumed>) = 0 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1116] symlink("/dev/binderfs", "./binderfs" [pid 299] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 1116] <... symlink resumed>) = 0 executing program [pid 299] <... openat resumed>) = 3 [pid 297] umount2("./201", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(3, "", [pid 297] <... openat resumed>) = 3 [pid 1116] write(1, "executing program\n", 18 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] newfstatat(3, "", [pid 1116] <... write resumed>) = 18 [pid 299] getdents64(3, [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1116] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] getdents64(3, [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 297] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./201/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 300] <... restart_syscall resumed>) = 0 [pid 297] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./201/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] close(4) = 0 [pid 297] rmdir("./201/binderfs2" [pid 1116] <... mkdirat resumed>) = 0 [pid 1116] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./201/binderfs" [pid 1116] <... mount resumed>) = 0 [pid 300] umount2("./205", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] close(3) = 0 [pid 297] rmdir("./201" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] newfstatat(AT_FDCWD, "./201/binderfs2", [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... rmdir resumed>) = 0 [pid 299] umount2("./201/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] mkdir("./202", 0777 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./201/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] newfstatat(3, "", [pid 299] <... openat resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(4, "", [pid 300] getdents64(3, [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1116] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(4, [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1116] <... openat resumed>) = 3 [pid 300] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, ./strace-static-x86_64: Process 1117 attached 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1117 [pid 300] <... umount2 resumed>) = 0 [pid 1117] set_robust_list(0x5555726b0660, 24 [pid 1116] exit_group(0 [pid 1117] <... set_robust_list resumed>) = 0 [pid 1116] <... exit_group resumed>) = ? [pid 300] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] rmdir("./201/binderfs2" [pid 1116] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... rmdir resumed>) = 0 [pid 1117] chdir("./202" [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1117] <... chdir resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./205/binderfs2", [pid 299] umount2("./201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1117] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1117] setpgid(0, 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./201/binderfs", [pid 1117] <... setpgid resumed>) = 0 [pid 300] openat(AT_FDCWD, "./205/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./201/binderfs" [pid 300] <... openat resumed>) = 4 [pid 299] <... unlink resumed>) = 0 [pid 1117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(4, "", [pid 299] getdents64(3, [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, [pid 299] close(3) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] rmdir("./201" [pid 1117] <... openat resumed>) = 3 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1117] write(3, "1000", 4 [pid 300] close(4 [pid 1117] <... write resumed>) = 4 [pid 300] <... close resumed>) = 0 [pid 1117] close(3 [pid 300] rmdir("./205/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 1117] <... close resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 1117] symlink("/dev/binderfs", "./binderfs" [pid 299] mkdir("./202", 0777 [pid 1117] <... symlink resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 executing program [pid 1117] write(1, "executing program\n", 18 [pid 300] umount2("./205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1117] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1117] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] unlink("./205/binderfs"./strace-static-x86_64: Process 1118 attached ) = 0 [pid 1118] set_robust_list(0x5555726b0660, 24) = 0 [pid 1118] chdir("./202") = 0 [pid 1118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1117] <... mkdirat resumed>) = 0 [pid 1118] setpgid(0, 0) = 0 [pid 1118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 1117] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(3, [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1118 [pid 1118] <... openat resumed>) = 3 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1118] write(3, "1000", 4 [pid 300] close(3 [pid 1118] <... write resumed>) = 4 [pid 1118] close(3 [pid 300] <... close resumed>) = 0 [pid 1118] <... close resumed>) = 0 [pid 300] rmdir("./205" [pid 1118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1118] write(1, "executing program\n", 18) = 18 [pid 300] <... rmdir resumed>) = 0 [pid 1118] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... restart_syscall resumed>) = 0 [pid 1117] <... mount resumed>) = 0 [pid 1118] <... mkdirat resumed>) = 0 [pid 1117] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] mkdir("./206", 0777 [pid 298] umount2("./205", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1118] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1118] <... mount resumed>) = 0 [pid 1117] <... openat resumed>) = 3 [pid 300] <... mkdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1118] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1117] exit_group(0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1117] <... exit_group resumed>) = ? [pid 1118] <... openat resumed>) = 3 [pid 1118] exit_group(0 [pid 298] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 1119 attached [pid 1118] <... exit_group resumed>) = ? [pid 1119] set_robust_list(0x5555726b0660, 24 [pid 1118] +++ exited with 0 +++ [pid 1117] +++ exited with 0 +++ [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1119 [pid 1119] <... set_robust_list resumed>) = 0 [pid 298] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1119] chdir("./206" [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] newfstatat(AT_FDCWD, "./205/binderfs2", [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1119] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1119] <... prctl resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1119] setpgid(0, 0 [pid 298] openat(AT_FDCWD, "./205/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1119] <... setpgid resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 1119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1119] <... openat resumed>) = 3 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1119] write(3, "1000", 4) = 4 [pid 1119] close(3 [pid 298] getdents64(4, [pid 1119] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1119] symlink("/dev/binderfs", "./binderfs" [pid 298] close(4 [pid 1119] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./205/binderfs2"executing program [pid 1119] write(1, "executing program\n", 18 [pid 298] <... rmdir resumed>) = 0 [pid 1119] <... write resumed>) = 18 [pid 1119] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] umount2("./205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1119] <... mkdirat resumed>) = 0 [pid 1119] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./205/binderfs") = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./202", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1119] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 1119] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1119] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 298] close(3 [pid 299] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./205" [pid 1119] exit_group(0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./202/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./202/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... rmdir resumed>) = 0 [pid 1119] <... exit_group resumed>) = ? [pid 297] <... restart_syscall resumed>) = 0 [pid 298] mkdir("./206", 0777 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4 [pid 298] <... mkdir resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./202/binderfs2") = 0 [pid 299] umount2("./202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1119] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./202", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] unlink("./202/binderfs" [pid 297] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... unlink resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... openat resumed>) = 3 [pid 299] getdents64(3, [pid 297] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3) = 0 [pid 299] rmdir("./202"./strace-static-x86_64: Process 1120 attached [pid 300] <... restart_syscall resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1120] set_robust_list(0x5555726b0660, 24 [pid 299] mkdir("./203", 0777 [pid 297] getdents64(3, [pid 1120] <... set_robust_list resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1120] chdir("./206" [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1120 [pid 297] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1120] <... chdir resumed>) = 0 [pid 300] umount2("./206", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1120] <... prctl resumed>) = 0 [pid 300] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 1121 attached [pid 1120] setpgid(0, 0 [pid 300] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1121] set_robust_list(0x5555726b0660, 24 [pid 1120] <... setpgid resumed>) = 0 [pid 1121] <... set_robust_list resumed>) = 0 [pid 1120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] newfstatat(3, "", [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1121 [pid 297] newfstatat(AT_FDCWD, "./202/binderfs2", [pid 1120] <... openat resumed>) = 3 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1121] chdir("./203" [pid 300] getdents64(3, [pid 297] umount2("./202/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1120] write(3, "1000", 4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1121] <... chdir resumed>) = 0 [pid 1120] <... write resumed>) = 4 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] openat(AT_FDCWD, "./202/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1120] close(3 executing program [pid 300] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1121] <... prctl resumed>) = 0 [pid 1120] <... close resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 1121] setpgid(0, 0 [pid 1120] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(4, "", [pid 1120] <... symlink resumed>) = 0 [pid 1120] write(1, "executing program\n", 18) = 18 [pid 300] <... umount2 resumed>) = 0 [pid 1121] <... setpgid resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1120] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1120] <... mkdirat resumed>) = 0 [pid 300] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] getdents64(4, [pid 1121] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1120] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(4, [pid 1121] write(3, "1000", 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1121] <... write resumed>) = 4 [pid 300] newfstatat(AT_FDCWD, "./206/binderfs2", [pid 297] close(4 [pid 1121] close(3 [pid 1120] <... mount resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... close resumed>) = 0 [pid 1121] <... close resumed>) = 0 [pid 297] rmdir("./202/binderfs2" [pid 300] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1120] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1121] symlink("/dev/binderfs", "./binderfs" [pid 1120] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1120] exit_group(0) = ? [pid 1121] <... symlink resumed>) = 0 [pid 300] openat(AT_FDCWD, "./206/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1121] write(1, "executing program\n", 18 [pid 1120] +++ exited with 0 +++ executing program [pid 300] newfstatat(4, "", [pid 297] umount2("./202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1121] <... write resumed>) = 18 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] newfstatat(AT_FDCWD, "./202/binderfs", [pid 1121] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] getdents64(4, [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] unlink("./202/binderfs" [pid 300] close(4) = 0 [pid 1121] <... mkdirat resumed>) = 0 [pid 297] <... unlink resumed>) = 0 [pid 1121] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] rmdir("./206/binderfs2" [pid 297] getdents64(3, [pid 300] <... rmdir resumed>) = 0 [pid 1121] <... mount resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] umount2("./206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] close(3 [pid 1121] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... close resumed>) = 0 [pid 297] rmdir("./202") = 0 [pid 1121] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./206/binderfs", [pid 297] mkdir("./203", 0777 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./206/binderfs" [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./206", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... mkdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1121] exit_group(0 [pid 298] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, [pid 300] <... unlink resumed>) = 0 [pid 1121] <... exit_group resumed>) = ? [pid 300] getdents64(3, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 298] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1121] +++ exited with 0 +++ [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] newfstatat(AT_FDCWD, "./206/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./206/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] close(3./strace-static-x86_64: Process 1122 attached [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1121, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1122] set_robust_list(0x5555726b0660, 24) = 0 [pid 298] newfstatat(4, "", [pid 1122] chdir("./203" [pid 300] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1122 [pid 1122] <... chdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] rmdir("./206" [pid 299] umount2("./203", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] getdents64(4, [pid 1122] <... prctl resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1122] setpgid(0, 0 [pid 300] <... rmdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, [pid 1122] <... setpgid resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] mkdir("./207", 0777 [pid 299] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] close(4 [pid 1122] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 3 [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./206/binderfs2" [pid 1122] write(3, "1000", 4) = 4 [pid 300] <... mkdir resumed>) = 0 [pid 299] newfstatat(3, "", [pid 298] <... rmdir resumed>) = 0 [pid 1122] close(3) = 0 [pid 1122] symlink("/dev/binderfs", "./binderfs" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, [pid 1122] <... symlink resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./206/binderfs", executing program [pid 1122] write(1, "executing program\n", 18 [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1122] <... write resumed>) = 18 [pid 298] unlink("./206/binderfs" [pid 1122] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 1123 attached [pid 1122] <... mkdirat resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 1123] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] rmdir("./206" [pid 1123] <... set_robust_list resumed>) = 0 [pid 1122] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1123 [pid 298] <... rmdir resumed>) = 0 [pid 1123] chdir("./207" [pid 1122] <... mount resumed>) = 0 [pid 299] <... umount2 resumed>) = 0 [pid 1123] <... chdir resumed>) = 0 [pid 299] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1123] <... prctl resumed>) = 0 [pid 299] newfstatat(AT_FDCWD, "./203/binderfs2", [pid 1123] setpgid(0, 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1123] <... setpgid resumed>) = 0 [pid 299] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] mkdir("./207", 0777 [pid 1123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1122] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] openat(AT_FDCWD, "./203/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 298] <... mkdir resumed>) = 0 [pid 1122] <... openat resumed>) = 3 [pid 299] <... openat resumed>) = 4 [pid 299] newfstatat(4, "", [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1123] <... openat resumed>) = 3 [pid 299] getdents64(4, [pid 1123] write(3, "1000", 4) = 4 [pid 1122] exit_group(0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 1124 attached [pid 1123] close(3 [pid 299] getdents64(4, [pid 1122] <... exit_group resumed>) = ? [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1124] set_robust_list(0x5555726b0660, 24 [pid 1123] <... close resumed>) = 0 [pid 1122] +++ exited with 0 +++ [pid 299] close(4 [pid 1124] <... set_robust_list resumed>) = 0 [pid 1123] symlink("/dev/binderfs", "./binderfs" [pid 299] <... close resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1124 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1124] chdir("./207" [pid 299] rmdir("./203/binderfs2" [pid 1123] <... symlink resumed>) = 0 [pid 299] <... rmdir resumed>) = 0 executing program [pid 1124] <... chdir resumed>) = 0 [pid 1123] write(1, "executing program\n", 18 [pid 299] umount2("./203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1123] <... write resumed>) = 18 [pid 1124] <... prctl resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1123] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1124] setpgid(0, 0 [pid 299] newfstatat(AT_FDCWD, "./203/binderfs", [pid 1124] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 1124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] unlink("./203/binderfs") = 0 [pid 1123] <... mkdirat resumed>) = 0 [pid 1124] <... openat resumed>) = 3 [pid 1123] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] getdents64(3, [pid 297] umount2("./203", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1124] write(3, "1000", 4 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1124] <... write resumed>) = 4 [pid 299] close(3 [pid 1124] close(3 [pid 297] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1124] <... close resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 1124] symlink("/dev/binderfs", "./binderfs" [pid 297] <... openat resumed>) = 3 [pid 299] rmdir("./203" [pid 297] newfstatat(3, "", [pid 1123] <... mount resumed>) = 0 [pid 1124] <... symlink resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 1124] write(1, "executing program\n", 18 [pid 1123] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] <... rmdir resumed>) = 0 [pid 297] getdents64(3, [pid 1124] <... write resumed>) = 18 [pid 299] mkdir("./204", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1124] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 297] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1124] <... mkdirat resumed>) = 0 [pid 297] <... umount2 resumed>) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 1123] <... openat resumed>) = 3 [pid 297] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1124] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1123] exit_group(0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1125 attached [pid 1124] <... mount resumed>) = 0 [pid 1123] <... exit_group resumed>) = ? [pid 297] newfstatat(AT_FDCWD, "./203/binderfs2", [pid 1125] set_robust_list(0x5555726b0660, 24 [pid 1124] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1123] +++ exited with 0 +++ [pid 1125] <... set_robust_list resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1125] chdir("./204" [pid 1124] <... openat resumed>) = 3 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1123, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] umount2("./203/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1125 [pid 1125] <... chdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1124] exit_group(0 [pid 297] openat(AT_FDCWD, "./203/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1125] <... prctl resumed>) = 0 [pid 1124] <... exit_group resumed>) = ? [pid 297] <... openat resumed>) = 4 [pid 1125] setpgid(0, 0 [pid 297] newfstatat(4, "", [pid 1124] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 1125] <... setpgid resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] umount2("./207", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 298] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1125] <... openat resumed>) = 3 [pid 298] <... openat resumed>) = 3 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] newfstatat(3, "", [pid 1125] write(3, "1000", 4 [pid 297] getdents64(4, [pid 1125] <... write resumed>) = 4 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1125] close(3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] close(4 [pid 1125] <... close resumed>) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... close resumed>) = 0 [pid 298] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1125] symlink("/dev/binderfs", "./binderfs" [pid 298] <... umount2 resumed>) = 0 [pid 297] rmdir("./203/binderfs2" [pid 298] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./207/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./207/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1125] <... symlink resumed>) = 0 [pid 298] <... openat resumed>) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, executing program [pid 1125] write(1, "executing program\n", 18 [pid 297] umount2("./203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1125] <... write resumed>) = 18 [pid 1125] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./207/binderfs2" [pid 1125] <... mkdirat resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./203/binderfs", [pid 1125] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./203/binderfs" [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./207/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./207/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./207" [pid 1125] <... mount resumed>) = 0 [pid 297] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1125] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] close(3 [pid 298] <... rmdir resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 1125] <... openat resumed>) = 3 [pid 298] mkdir("./208", 0777 [pid 297] rmdir("./203") = 0 [pid 298] <... mkdir resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1125] exit_group(0 [pid 297] mkdir("./204", 0777 [pid 1125] <... exit_group resumed>) = ? [pid 297] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 1126 attached [pid 1126] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1126 [pid 1126] <... set_robust_list resumed>) = 0 [pid 1126] chdir("./208") = 0 [pid 1126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1125] +++ exited with 0 +++ [pid 1126] setpgid(0, 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1126] <... setpgid resumed>) = 0 [pid 299] <... restart_syscall resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] umount2("./204", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1126] write(3, "1000", 4) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1127 attached [pid 1126] close(3 [pid 300] umount2("./207", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1126] <... close resumed>) = 0 [pid 299] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1126] symlink("/dev/binderfs", "./binderfs" [pid 299] <... openat resumed>) = 3 [pid 1127] set_robust_list(0x5555726b0660, 24 [pid 1126] <... symlink resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1127] <... set_robust_list resumed>) = 0 [pid 300] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1127 [pid 1126] write(1, "executing program\n", 18 executing program [pid 1127] chdir("./204" [pid 299] newfstatat(3, "", [pid 1126] <... write resumed>) = 18 [pid 300] <... openat resumed>) = 3 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1126] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] getdents64(3, [pid 1127] <... chdir resumed>) = 0 [pid 1126] <... mkdirat resumed>) = 0 [pid 300] newfstatat(3, "", [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1127] <... prctl resumed>) = 0 [pid 300] getdents64(3, [pid 299] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1127] setpgid(0, 0 [pid 1126] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] <... umount2 resumed>) = 0 [pid 1127] <... setpgid resumed>) = 0 [pid 1126] <... mount resumed>) = 0 [pid 300] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./204/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1126] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 299] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 1126] <... openat resumed>) = 3 [pid 299] openat(AT_FDCWD, "./204/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1127] <... openat resumed>) = 3 [pid 1127] write(3, "1000", 4 [pid 300] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] newfstatat(4, "", [pid 1127] <... write resumed>) = 4 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1127] close(3) = 0 [pid 1126] exit_group(0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1127] symlink("/dev/binderfs", "./binderfs" [pid 1126] <... exit_group resumed>) = ? [pid 300] newfstatat(AT_FDCWD, "./207/binderfs2", [pid 299] getdents64(4, [pid 1127] <... symlink resumed>) = 0 [pid 1126] +++ exited with 0 +++ [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 executing program [pid 1127] write(1, "executing program\n", 18 [pid 300] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1127] <... write resumed>) = 18 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] openat(AT_FDCWD, "./207/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] close(4 [pid 1127] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... openat resumed>) = 4 [pid 299] <... close resumed>) = 0 [pid 299] rmdir("./204/binderfs2" [pid 300] newfstatat(4, "", [pid 299] <... rmdir resumed>) = 0 [pid 299] umount2("./204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1127] <... mkdirat resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] newfstatat(AT_FDCWD, "./204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./204/binderfs" [pid 1127] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] <... restart_syscall resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] <... unlink resumed>) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] umount2("./208", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(3) = 0 [pid 299] rmdir("./204" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1127] <... mount resumed>) = 0 [pid 300] close(4) = 0 [pid 1127] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] rmdir("./207/binderfs2" [pid 299] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] <... rmdir resumed>) = 0 [pid 298] <... openat resumed>) = 3 [pid 299] mkdir("./205", 0777 [pid 298] newfstatat(3, "", [pid 1127] <... openat resumed>) = 3 [pid 300] umount2("./207/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./207/binderfs", [pid 298] getdents64(3, [pid 1127] exit_group(0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1127] <... exit_group resumed>) = ? [pid 300] unlink("./207/binderfs" [pid 298] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1127] +++ exited with 0 +++ [pid 300] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 1128 attached [pid 300] getdents64(3, [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1128 [pid 1128] set_robust_list(0x5555726b0660, 24 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1128] <... set_robust_list resumed>) = 0 [pid 297] umount2("./204", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1128] chdir("./205" [pid 298] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] close(3 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... close resumed>) = 0 [pid 1128] <... chdir resumed>) = 0 [pid 297] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] newfstatat(AT_FDCWD, "./208/binderfs2", [pid 297] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./208/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1128] <... prctl resumed>) = 0 [pid 300] rmdir("./207" [pid 298] newfstatat(4, "", [pid 297] newfstatat(3, "", [pid 1128] setpgid(0, 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] <... rmdir resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1128] <... setpgid resumed>) = 0 [pid 298] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] close(4) = 0 [pid 298] rmdir("./208/binderfs2" [pid 297] getdents64(3, [pid 1128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] mkdir("./208", 0777 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1128] <... openat resumed>) = 3 [pid 297] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... rmdir resumed>) = 0 [pid 298] umount2("./208/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] <... mkdir resumed>) = 0 [pid 298] newfstatat(AT_FDCWD, "./208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./208/binderfs") = 0 [pid 297] <... umount2 resumed>) = 0 [pid 1128] write(3, "1000", 4) = 4 [pid 298] getdents64(3, [pid 1128] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1128] <... close resumed>) = 0 [pid 298] close(3 [pid 1128] symlink("/dev/binderfs", "./binderfs" [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./208" [pid 1128] <... symlink resumed>) = 0 [pid 298] <... rmdir resumed>) = 0 [pid 297] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1129 attached [pid 297] newfstatat(AT_FDCWD, "./204/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] mkdir("./209", 0777 [pid 297] umount2("./204/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 1128] write(1, "executing program\n", 18 [pid 1129] set_robust_list(0x5555726b0660, 24 [pid 1128] <... write resumed>) = 18 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1129 [pid 1129] <... set_robust_list resumed>) = 0 [pid 1129] chdir("./208" [pid 1128] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... mkdir resumed>) = 0 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./204/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] getdents64(4, ./strace-static-x86_64: Process 1130 attached [pid 1129] <... chdir resumed>) = 0 [pid 1128] <... mkdirat resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] close(4 [pid 1129] setpgid(0, 0) = 0 [pid 297] <... close resumed>) = 0 [pid 1130] set_robust_list(0x5555726b0660, 24 [pid 1128] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1130 [pid 297] rmdir("./204/binderfs2" [pid 1130] <... set_robust_list resumed>) = 0 [pid 1129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1130] chdir("./209" [pid 1129] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 297] umount2("./204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] newfstatat(AT_FDCWD, "./204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] unlink("./204/binderfs") = 0 [pid 1128] <... mount resumed>) = 0 [pid 1129] write(3, "1000", 4 [pid 1130] <... chdir resumed>) = 0 [pid 1130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] getdents64(3, [pid 1130] <... prctl resumed>) = 0 [pid 1130] setpgid(0, 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1130] <... setpgid resumed>) = 0 [pid 1129] <... write resumed>) = 4 [pid 297] close(3) = 0 [pid 1130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1129] close(3 [pid 1130] <... openat resumed>) = 3 [pid 1129] <... close resumed>) = 0 [pid 1128] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 297] rmdir("./204" [pid 1130] write(3, "1000", 4 [pid 1129] symlink("/dev/binderfs", "./binderfs"executing program [pid 1128] <... openat resumed>) = 3 [pid 297] <... rmdir resumed>) = 0 [pid 1130] <... write resumed>) = 4 [pid 1129] <... symlink resumed>) = 0 [pid 1130] close(3) = 0 [pid 297] mkdir("./205", 0777 [pid 1130] symlink("/dev/binderfs", "./binderfs" [pid 1129] write(1, "executing program\n", 18 [pid 1128] exit_group(0 [pid 1129] <... write resumed>) = 18 [pid 1130] <... symlink resumed>) = 0 [pid 1130] write(1, "executing program\n", 18 [pid 1129] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1128] <... exit_group resumed>) = ? [pid 297] <... mkdir resumed>) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1129] <... mkdirat resumed>) = 0 ./strace-static-x86_64: Process 1131 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1131 [pid 1131] set_robust_list(0x5555726b0660, 24) = 0 executing program [pid 1128] +++ exited with 0 +++ [pid 1130] <... write resumed>) = 18 [pid 1131] chdir("./205" [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1131] <... chdir resumed>) = 0 [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 1131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1130] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1129] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1131] <... prctl resumed>) = 0 [pid 1131] setpgid(0, 0) = 0 [pid 1131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1130] <... mkdirat resumed>) = 0 [pid 1131] <... openat resumed>) = 3 [pid 1131] write(3, "1000", 4) = 4 [pid 1131] close(3) = 0 [pid 1131] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1129] <... mount resumed>) = 0 [pid 1131] write(1, "executing program\n", 18executing program ) = 18 [pid 1131] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1130] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1129] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1131] <... mkdirat resumed>) = 0 [pid 1131] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1130] <... mount resumed>) = 0 [pid 1129] <... openat resumed>) = 3 [pid 1130] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1129] exit_group(0) = ? [pid 1131] <... mount resumed>) = 0 [pid 1131] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1131] exit_group(0) = ? [pid 1129] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1129, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1130] <... openat resumed>) = 3 [pid 1130] exit_group(0) = ? [pid 1131] +++ exited with 0 +++ [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1131, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 297] restart_syscall(<... resuming interrupted clone ...> [pid 1130] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 299] <... restart_syscall resumed>) = 0 [pid 299] umount2("./205", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... restart_syscall resumed>) = 0 [pid 299] getdents64(3, [pid 297] umount2("./205", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 3 [pid 299] <... umount2 resumed>) = 0 [pid 297] newfstatat(3, "", [pid 299] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] newfstatat(AT_FDCWD, "./205/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./205/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, [pid 297] <... umount2 resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 297] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] close(4 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... close resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./205/binderfs2", [pid 299] rmdir("./205/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./208", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] umount2("./205/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] openat(AT_FDCWD, "./205/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 300] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... openat resumed>) = 4 [pid 298] <... restart_syscall resumed>) = 0 [pid 299] umount2("./205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... umount2 resumed>) = 0 [pid 297] getdents64(4, [pid 300] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./208/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./208/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] newfstatat(AT_FDCWD, "./205/binderfs", [pid 298] umount2("./209", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(4, [pid 299] unlink("./205/binderfs" [pid 298] openat(AT_FDCWD, "./209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] getdents64(4, [pid 297] close(4 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 298] <... openat resumed>) = 3 [pid 300] close(4) = 0 [pid 300] rmdir("./208/binderfs2" [pid 299] <... unlink resumed>) = 0 [pid 300] <... rmdir resumed>) = 0 [pid 298] newfstatat(3, "", [pid 297] <... close resumed>) = 0 [pid 300] umount2("./208/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] rmdir("./205/binderfs2" [pid 298] getdents64(3, [pid 300] newfstatat(AT_FDCWD, "./208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./208/binderfs") = 0 [pid 297] <... rmdir resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] getdents64(3, [pid 298] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] umount2("./205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] getdents64(3, [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 300] close(3) = 0 [pid 300] rmdir("./208") = 0 [pid 299] close(3 [pid 298] <... umount2 resumed>) = 0 [pid 297] newfstatat(AT_FDCWD, "./205/binderfs", [pid 299] <... close resumed>) = 0 [pid 300] mkdir("./209", 0777 [pid 299] rmdir("./205" [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] <... rmdir resumed>) = 0 [pid 297] unlink("./205/binderfs" [pid 298] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] <... mkdir resumed>) = 0 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... unlink resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] getdents64(3, [pid 299] mkdir("./206", 0777 [pid 298] newfstatat(AT_FDCWD, "./209/binderfs2", [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] close(3 [pid 298] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... close resumed>) = 0 ./strace-static-x86_64: Process 1132 attached [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1132 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] rmdir("./205" [pid 1132] set_robust_list(0x5555726b0660, 24) = 0 [pid 1132] chdir("./209") = 0 [pid 1132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1132] setpgid(0, 0) = 0 [pid 299] <... mkdir resumed>) = 0 [pid 1132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 1132] write(3, "1000", 4) = 4 [pid 297] <... rmdir resumed>) = 0 [pid 298] openat(AT_FDCWD, "./209/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1132] close(3) = 0 [pid 1132] symlink("/dev/binderfs", "./binderfs"executing program [pid 298] <... openat resumed>) = 4 [pid 1132] <... symlink resumed>) = 0 [pid 1132] write(1, "executing program\n", 18) = 18 [pid 1132] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] newfstatat(4, "", [pid 297] mkdir("./206", 0777 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 1133 attached [pid 1132] <... mkdirat resumed>) = 0 [pid 298] getdents64(4, [pid 1133] set_robust_list(0x5555726b0660, 24 [pid 297] <... mkdir resumed>) = 0 [pid 1133] <... set_robust_list resumed>) = 0 [pid 1132] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1133] chdir("./206" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1133 [pid 298] getdents64(4, [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1134 attached [pid 1133] <... chdir resumed>) = 0 [pid 1132] <... mount resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 298] close(4 [pid 1133] <... prctl resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1134 [pid 298] rmdir("./209/binderfs2" [pid 1133] setpgid(0, 0) = 0 [pid 1133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... rmdir resumed>) = 0 [pid 1134] set_robust_list(0x5555726b0660, 24 [pid 1133] <... openat resumed>) = 3 [pid 1132] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1134] <... set_robust_list resumed>) = 0 [pid 1133] write(3, "1000", 4 [pid 1132] <... openat resumed>) = 3 [pid 1133] <... write resumed>) = 4 [pid 1133] close(3 [pid 1134] chdir("./206" [pid 1133] <... close resumed>) = 0 [pid 298] umount2("./209/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1134] <... chdir resumed>) = 0 [pid 1133] symlink("/dev/binderfs", "./binderfs" [pid 1132] exit_group(0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1133] <... symlink resumed>) = 0 [pid 1134] <... prctl resumed>) = 0 [pid 1132] <... exit_group resumed>) = ? [pid 1134] setpgid(0, 0 [pid 1132] +++ exited with 0 +++ [pid 298] newfstatat(AT_FDCWD, "./209/binderfs", [pid 1134] <... setpgid resumed>) = 0 executing program [pid 298] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1133] write(1, "executing program\n", 18 [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1133] <... write resumed>) = 18 [pid 1133] mkdirat(AT_FDCWD, "./binderfs2", 0777) = 0 [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 298] unlink("./209/binderfs" [pid 1134] <... openat resumed>) = 3 [pid 1133] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] <... unlink resumed>) = 0 [pid 1134] write(3, "1000", 4) = 4 [pid 1134] close(3 [pid 1133] <... mount resumed>) = 0 [pid 298] getdents64(3, [pid 1134] <... close resumed>) = 0 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1134] symlink("/dev/binderfs", "./binderfs" [pid 298] close(3 [pid 1133] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1134] <... symlink resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 1133] <... openat resumed>) = 3 executing program [pid 1133] exit_group(0 [pid 298] rmdir("./209" [pid 1134] write(1, "executing program\n", 18 [pid 1133] <... exit_group resumed>) = ? [pid 298] <... rmdir resumed>) = 0 [pid 1134] <... write resumed>) = 18 [pid 1134] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1133] +++ exited with 0 +++ [pid 298] mkdir("./210", 0777 [pid 300] <... restart_syscall resumed>) = 0 [pid 1134] <... mkdirat resumed>) = 0 [pid 300] umount2("./209", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... mkdir resumed>) = 0 [pid 1134] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... umount2 resumed>) = 0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1133, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] restart_syscall(<... resuming interrupted clone ...> [pid 300] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] newfstatat(AT_FDCWD, "./209/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] umount2("./209/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./209/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 300] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1134] <... mount resumed>) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] close(4) = 0 [pid 300] rmdir("./209/binderfs2"./strace-static-x86_64: Process 1135 attached [pid 1134] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 300] <... rmdir resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1135 [pid 1135] set_robust_list(0x5555726b0660, 24 [pid 300] umount2("./209/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1135] <... set_robust_list resumed>) = 0 [pid 1135] chdir("./210" [pid 1134] <... openat resumed>) = 3 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] <... restart_syscall resumed>) = 0 [pid 300] newfstatat(AT_FDCWD, "./209/binderfs", [pid 1135] <... chdir resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] unlink("./209/binderfs" [pid 1134] exit_group(0 [pid 1135] <... prctl resumed>) = 0 [pid 300] <... unlink resumed>) = 0 [pid 1135] setpgid(0, 0 [pid 1134] <... exit_group resumed>) = ? [pid 1135] <... setpgid resumed>) = 0 [pid 1135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1135] <... openat resumed>) = 3 [pid 300] close(3) = 0 [pid 1135] write(3, "1000", 4 [pid 300] rmdir("./209" [pid 1135] <... write resumed>) = 4 [pid 1134] +++ exited with 0 +++ [pid 300] <... rmdir resumed>) = 0 [pid 1135] close(3 [pid 299] umount2("./206", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1135] <... close resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] umount2("./206", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... openat resumed>) = 3 [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1135] symlink("/dev/binderfs", "./binderfs" [pid 300] mkdir("./210", 0777 [pid 299] newfstatat(3, "", [pid 297] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1135] <... symlink resumed>) = 0 [pid 300] <... mkdir resumed>) = 0 executing program [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] <... openat resumed>) = 3 [pid 1135] write(1, "executing program\n", 18) = 18 [pid 1135] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] getdents64(3, [pid 297] newfstatat(3, "", [pid 1135] <... mkdirat resumed>) = 0 [pid 299] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 1136 attached [pid 1135] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 297] getdents64(3, [pid 1136] set_robust_list(0x5555726b0660, 24 [pid 299] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1136] <... set_robust_list resumed>) = 0 [pid 1135] <... mount resumed>) = 0 [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1136 [pid 299] <... umount2 resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1135] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1136] chdir("./210" [pid 297] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1135] <... openat resumed>) = 3 [pid 1135] exit_group(0) = ? [pid 299] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... umount2 resumed>) = 0 [pid 1136] <... chdir resumed>) = 0 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1136] <... prctl resumed>) = 0 [pid 1136] setpgid(0, 0 [pid 1135] +++ exited with 0 +++ [pid 299] newfstatat(AT_FDCWD, "./206/binderfs2", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1136] <... setpgid resumed>) = 0 [pid 299] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] newfstatat(AT_FDCWD, "./206/binderfs2", [pid 299] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./206/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./206/binderfs2" [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1135, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1136] <... openat resumed>) = 3 [pid 299] <... rmdir resumed>) = 0 [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 297] umount2("./206/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1136] write(3, "1000", 4 [pid 299] umount2("./206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1136] <... write resumed>) = 4 [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] unlink("./206/binderfs" [pid 297] openat(AT_FDCWD, "./206/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1136] close(3) = 0 [pid 299] <... unlink resumed>) = 0 [pid 297] <... openat resumed>) = 4 [pid 1136] symlink("/dev/binderfs", "./binderfs" [pid 297] newfstatat(4, "", [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 299] close(3 [pid 1136] <... symlink resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 297] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] rmdir("./206") = 0 [pid 297] getdents64(4, executing program [pid 1136] write(1, "executing program\n", 18 [pid 299] mkdir("./207", 0777 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1136] <... write resumed>) = 18 [pid 297] getdents64(4, [pid 1136] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 299] <... mkdir resumed>) = 0 [pid 298] <... restart_syscall resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] close(4) = 0 [pid 298] umount2("./210", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] rmdir("./206/binderfs2" [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 1137 attached [pid 1137] set_robust_list(0x5555726b0660, 24 [pid 298] openat(AT_FDCWD, "./210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 297] <... rmdir resumed>) = 0 [pid 1137] <... set_robust_list resumed>) = 0 [pid 1137] chdir("./207" [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1137 [pid 1137] <... chdir resumed>) = 0 [pid 1136] <... mkdirat resumed>) = 0 [pid 1137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1137] setpgid(0, 0) = 0 [pid 1137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... openat resumed>) = 3 [pid 297] umount2("./206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1137] <... openat resumed>) = 3 [pid 1136] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 298] newfstatat(3, "", [pid 297] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 297] newfstatat(AT_FDCWD, "./206/binderfs", [pid 298] getdents64(3, [pid 1137] write(3, "1000", 4) = 4 [pid 297] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 1137] close(3 [pid 298] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 297] unlink("./206/binderfs" [pid 1137] <... close resumed>) = 0 [pid 298] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 1137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] <... unlink resumed>) = 0 [pid 1137] write(1, "executing program\n", 18) = 18 [pid 1137] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 298] <... umount2 resumed>) = 0 [pid 1137] <... mkdirat resumed>) = 0 [pid 1137] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1136] <... mount resumed>) = 0 [pid 297] getdents64(3, [pid 298] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 297] close(3 [pid 298] newfstatat(AT_FDCWD, "./210/binderfs2", [pid 297] <... close resumed>) = 0 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 297] rmdir("./206" [pid 298] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... rmdir resumed>) = 0 [pid 298] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./210/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 1137] <... mount resumed>) = 0 [pid 1136] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1137] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 298] <... openat resumed>) = 4 [pid 297] mkdir("./207", 0777 [pid 1136] <... openat resumed>) = 3 [pid 298] newfstatat(4, "", [pid 1137] <... openat resumed>) = 3 [pid 298] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 1137] exit_group(0 [pid 298] getdents64(4, [pid 1137] <... exit_group resumed>) = ? [pid 297] <... mkdir resumed>) = 0 [pid 1137] +++ exited with 0 +++ [pid 1136] exit_group(0 [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 299] umount2("./207", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1136] <... exit_group resumed>) = ? [pid 299] <... umount2 resumed>) = 0 [pid 299] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] newfstatat(AT_FDCWD, "./207/binderfs2", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./207/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 299] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(4, 0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 299] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 299] close(4) = 0 [pid 299] rmdir("./207/binderfs2" [pid 1136] +++ exited with 0 +++ [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] getdents64(4, [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1136, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 300] umount2("./210", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 299] umount2("./207/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 300] openat(AT_FDCWD, "./210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 299] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 300] <... openat resumed>) = 3 [pid 299] newfstatat(AT_FDCWD, "./207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] newfstatat(3, "", [pid 299] unlink("./207/binderfs" [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program executing program [pid 300] getdents64(3, [pid 299] <... unlink resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 298] <... getdents64 resumed>0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 300] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 1138 attached [pid 300] <... umount2 resumed>) = 0 [pid 299] close(3 [pid 298] close(4 [pid 1138] set_robust_list(0x5555726b0660, 24) = 0 [pid 1138] chdir("./207" [pid 299] <... close resumed>) = 0 [pid 1138] <... chdir resumed>) = 0 [pid 299] rmdir("./207" [pid 1138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 300] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... rmdir resumed>) = 0 [pid 1138] <... prctl resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1138] setpgid(0, 0 [pid 300] newfstatat(AT_FDCWD, "./210/binderfs2", [pid 1138] <... setpgid resumed>) = 0 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 299] mkdir("./208", 0777 [pid 1138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] umount2("./210/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 299] <... mkdir resumed>) = 0 [pid 300] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 1138] <... openat resumed>) = 3 [pid 300] openat(AT_FDCWD, "./210/binderfs2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 1138] write(3, "1000", 4 [pid 300] newfstatat(4, "", [pid 1138] <... write resumed>) = 4 [pid 300] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1138] close(3 [pid 300] getdents64(4, [pid 1138] <... close resumed>) = 0 [pid 300] <... getdents64 resumed>0x5555726b9730 /* 2 entries */, 32768) = 48 [pid 1138] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 1139 attached ) = 0 [pid 300] getdents64(4, 0x5555726b9730 /* 0 entries */, 32768) = 0 [pid 1139] set_robust_list(0x5555726b0660, 24 [pid 300] close(4 [pid 1139] <... set_robust_list resumed>) = 0 [pid 1138] write(1, "executing program\n", 18 [pid 300] <... close resumed>) = 0 [pid 299] <... clone resumed>, child_tidptr=0x5555726b0650) = 1139 [pid 1139] chdir("./208" [pid 1138] <... write resumed>) = 18 [pid 300] rmdir("./210/binderfs2" [pid 1138] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] <... rmdir resumed>) = 0 [pid 1139] <... chdir resumed>) = 0 [pid 1139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1139] setpgid(0, 0) = 0 [pid 1139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1138] <... mkdirat resumed>) = 0 [pid 300] umount2("./210/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 1139] <... openat resumed>) = 3 [pid 300] newfstatat(AT_FDCWD, "./210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 300] unlink("./210/binderfs" [pid 1139] write(3, "1000", 4 [pid 300] <... unlink resumed>) = 0 [pid 1139] <... write resumed>) = 4 [pid 1139] close(3) = 0 [pid 300] getdents64(3, [pid 1139] symlink("/dev/binderfs", "./binderfs" [pid 1138] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 300] <... getdents64 resumed>0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 1139] <... symlink resumed>) = 0 [pid 1138] <... mount resumed>) = 0 [pid 300] close(3 [pid 1139] write(1, "executing program\n", 18) = 18 [pid 300] <... close resumed>) = 0 [pid 1139] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 300] rmdir("./210") = 0 [pid 1139] <... mkdirat resumed>) = 0 [pid 1138] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1139] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1138] <... openat resumed>) = 3 [pid 300] mkdir("./211", 0777 [pid 1139] <... mount resumed>) = 0 [pid 1138] exit_group(0 [pid 300] <... mkdir resumed>) = 0 [pid 1138] <... exit_group resumed>) = ? [pid 1138] +++ exited with 0 +++ [pid 300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 1139] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1139] exit_group(0) = ? [pid 300] <... clone resumed>, child_tidptr=0x5555726b0650) = 1140 [pid 1139] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1139, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 299] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 299] umount2("./208", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 299] openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 299] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 299] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 299] umount2("./208/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... close resumed>) = 0 [pid 298] rmdir("./210/binderfs2") = 0 [pid 298] umount2("./210/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./210/binderfs") = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 0 entries */, 32768) = 0 [pid 298] close(3) = 0 [pid 298] rmdir("./210") = 0 [pid 298] mkdir("./211", 0777) = 0 [ 36.444607][ T10] ================================================================== [ 36.452928][ T10] BUG: KASAN: null-ptr-deref in down_write+0x83/0x2a0 [ 36.459922][ T10] Write of size 8 at addr 0000000000000098 by task kworker/0:1/10 [ 36.468066][ T10] [ 36.470455][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.12.23-syzkaller-g30b14cdad458 #0 c708c6bafa1314b3e84c64b9f03b67766970ebbd [ 36.470492][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 36.470507][ T10] Workqueue: events _RNvXs6_NtCs43vyB533jt3_6kernel9workqueueINtNtNtB7_4sync3arc3ArcNtNtCshgDM7dBCdno_11rust_binder7process7ProcessEINtB5_15WorkItemPointerKy0_E3runB13_ [ 36.470581][ T10] Call Trace: [ 36.470589][ T10] [ 36.470598][ T10] __dump_stack+0x21/0x30 [ 36.470634][ T10] dump_stack_lvl+0x10c/0x190 [ 36.470657][ T10] ? __cfi_dump_stack_lvl+0x10/0x10 [ 36.470683][ T10] print_report+0x3d/0x70 [ 36.470702][ T10] kasan_report+0x163/0x1a0 [ 36.470731][ T10] ? down_write+0x83/0x2a0 [ 36.470753][ T10] ? down_write+0x83/0x2a0 [ 36.470771][ T10] kasan_check_range+0x299/0x2a0 [ 36.470800][ T10] __kasan_check_write+0x18/0x20 [ 36.470822][ T10] down_write+0x83/0x2a0 [ 36.470842][ T10] ? __cfi_down_write+0x10/0x10 [ 36.470861][ T10] ? _raw_spin_lock+0x8c/0x120 [ 36.470885][ T10] ? __cfi__raw_spin_lock+0x10/0x10 [ 36.470910][ T10] ? mutex_unlock+0x8b/0x240 [ 36.470940][ T10] ? __cfi_mutex_unlock+0x10/0x10 [ 36.470970][ T10] rust_binderfs_remove_file+0x6c/0x110 [ 36.471008][ T10] _RNvXs2_NtCshgDM7dBCdno_11rust_binder7processNtB5_7ProcessNtNtCs43vyB533jt3_6kernel9workqueue8WorkItem3run+0x9d4/0x2860 [ 36.471055][ T10] ? update_curr_dl_se+0x10c/0xb20 [ 36.471082][ T10] ? __cfi___update_load_avg_cfs_rq+0x10/0x10 [ 36.471103][ T10] ? update_curr+0x60d/0xc60 [ 36.471129][ T10] ? __cfi__RNvXs2_NtCshgDM7dBCdno_11rust_binder7processNtB5_7ProcessNtNtCs43vyB533jt3_6kernel9workqueue8WorkItem3run+0x10/0x10 [ 36.471173][ T10] ? update_load_avg+0x506/0x19a0 [ 36.471193][ T10] ? detach_entity_load_avg+0x7b0/0x7b0 [ 36.471221][ T10] ? dequeue_entity+0xa9c/0x1750 [ 36.471243][ T10] ? tg_unthrottle_up+0x980/0x980 [ 36.471263][ T10] ? stack_trace_save+0x9d/0xe0 [ 36.471295][ T10] ? kvm_sched_clock_read+0x15/0x30 [ 36.471315][ T10] ? sched_clock_noinstr+0xd/0x30 [ 36.471345][ T10] ? sched_clock+0x44/0x60 [ 36.471367][ T10] ? sched_clock_cpu+0x75/0x400 [ 36.471389][ T10] ? __cfi___update_load_avg_cfs_rq+0x10/0x10 [ 36.471411][ T10] ? sched_clock+0x44/0x60 [ 36.471430][ T10] ? xfd_validate_state+0x68/0x150 [ 36.471453][ T10] ? save_fpregs_to_fpstate+0x196/0x230 [ 36.471482][ T10] ? __kasan_check_write+0x18/0x20 [ 36.471505][ T10] ? __switch_to+0xc7b/0x1310 [ 36.471530][ T10] ? psi_group_change+0xb44/0x1130 [ 36.471552][ T10] ? __cfi___switch_to+0x10/0x10 [ 36.471578][ T10] ? _raw_spin_unlock+0x45/0x60 [ 36.471602][ T10] ? __switch_to_asm+0x3d/0x70 [ 36.471629][ T10] ? __schedule+0x1463/0x1f10 [ 36.471658][ T10] ? kick_pool+0xb9/0x550 [ 36.471689][ T10] process_scheduled_works+0x7d2/0x1020 [ 36.471719][ T10] worker_thread+0xc58/0x1250 [ 36.471749][ T10] ? schedule+0xc6/0x240 [ 36.471775][ T10] kthread+0x2c7/0x370 [ 36.471803][ T10] ? __cfi_worker_thread+0x10/0x10 [ 36.471829][ T10] ? __cfi_kthread+0x10/0x10 [ 36.471857][ T10] ret_from_fork+0x64/0xa0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 1141 attached ./strace-static-x86_64: Process 1140 attached [pid 297] <... clone resumed>, child_tidptr=0x5555726b0650) = 1138 [pid 1141] set_robust_list(0x5555726b0660, 24) = 0 [pid 1140] set_robust_list(0x5555726b0660, 24 [pid 298] <... clone resumed>, child_tidptr=0x5555726b0650) = 1141 [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1138, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 1141] chdir("./211" [pid 1140] <... set_robust_list resumed>) = 0 [pid 1140] chdir("./211" [pid 1141] <... chdir resumed>) = 0 [pid 1140] <... chdir resumed>) = 0 [pid 1141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 1141] setpgid(0, 0 [pid 1140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 1141] <... setpgid resumed>) = 0 [pid 1140] <... prctl resumed>) = 0 [pid 1141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1140] setpgid(0, 0) = 0 [pid 1141] <... openat resumed>) = 3 [pid 1140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 1141] write(3, "1000", 4 [pid 1140] <... openat resumed>) = 3 [pid 1141] <... write resumed>) = 4 [pid 1141] close(3) = 0 [pid 1141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 1140] write(3, "1000", 4) = 4 [pid 1140] close(3 [pid 297] umount2("./207", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 297] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 297] getdents64(3, [pid 1140] <... close resumed>) = 0 [pid 297] <... getdents64 resumed>0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 1140] symlink("/dev/binderfs", "./binderfs" [pid 297] umount2("./207/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 1141] write(1, "executing program\n", 18 [pid 1140] <... symlink resumed>) = 0 executing program [pid 1141] <... write resumed>) = 18 [pid 1140] write(1, "executing program\n", 18) = 18 [pid 1140] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1141] mkdirat(AT_FDCWD, "./binderfs2", 0777 [pid 1140] <... mkdirat resumed>) = 0 [pid 1141] <... mkdirat resumed>) = 0 [pid 1140] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1141] mount(NULL, "./binderfs2", "binder", 0, "stats=global," [pid 1140] <... mount resumed>) = 0 [pid 1141] <... mount resumed>) = 0 [pid 1141] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY [pid 1140] openat(AT_FDCWD, "./binderfs2/binder0", O_RDONLY) = 3 [pid 1141] <... openat resumed>) = 3 [pid 1141] exit_group(0 [pid 1140] exit_group(0) = ? [pid 1140] +++ exited with 0 +++ [pid 300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 300] restart_syscall(<... resuming interrupted clone ...> [pid 1141] <... exit_group resumed>) = ? [pid 1141] +++ exited with 0 +++ [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1141, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 298] restart_syscall(<... resuming interrupted clone ...> [pid 300] <... restart_syscall resumed>) = 0 [pid 300] umount2("./211", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 300] openat(AT_FDCWD, "./211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 300] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 300] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [pid 300] umount2("./211/binderfs2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 298] <... restart_syscall resumed>) = 0 [pid 298] umount2("./211", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x5555726b16f0 /* 4 entries */, 32768) = 112 [ 36.471880][ T10] ? __cfi_kthread+0x10/0x10 [ 36.471909][ T10] ret_from_fork_asm+0x1a/0x30 [ 36.471938][ T10] [ 36.471947][ T10] ================================================================== [ 36.816247][ T10] Disabling lock debugging due to kernel taint [ 36.825043][ T10] BUG: kernel NULL pointer dereference, address: 0000000000000098 [ 36.833328][ T10] #PF: supervisor write access in kernel mode [ 36.839738][ T10] #PF: error_code(0x0002) - not-present page [ 36.846006][ T10] PGD 0 P4D 0 [ 36.849594][ T10] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI [ 36.855934][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G B 6.12.23-syzkaller-g30b14cdad458 #0 c708c6bafa1314b3e84c64b9f03b67766970ebbd [ 36.871373][ T10] Tainted: [B]=BAD_PAGE [ 36.875709][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 36.886332][ T10] Workqueue: events _RNvXs6_NtCs43vyB533jt3_6kernel9workqueueINtNtNtB7_4sync3arc3ArcNtNtCshgDM7dBCdno_11rust_binder7process7ProcessEINtB5_15WorkItemPointerKy0_E3runB13_ [ 36.903738][ T10] RIP: 0010:down_write+0x9a/0x2a0 [ 36.908916][ T10] Code: 48 c7 44 24 20 00 00 00 00 be 08 00 00 00 e8 9d 40 55 fc 4c 89 f7 be 08 00 00 00 e8 90 40 55 fc 48 8b 44 24 20 b9 01 00 00 00 48 0f b1 0b 0f 85 a0 00 00 00 48 c7 c0 c0 b9 20 87 48 c1 e8 03 [ 36.929842][ T10] RSP: 0018:ffffc900000a7500 EFLAGS: 00010256 [ 36.936891][ T10] RAX: 0000000000000000 RBX: 0000000000000098 RCX: 0000000000000001 [ 36.945833][ T10] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900000a7520 [ 36.954449][ T10] RBP: ffffc900000a7598 R08: ffffc900000a7527 R09: 1ffff92000014ea4 [ 36.962735][ T10] R10: dffffc0000000000 R11: fffff52000014ea5 R12: dffffc0000000000 [ 36.971061][ T10] R13: 1ffff92000014ea0 R14: ffffc900000a7520 R15: 0000000000000000 [ 36.979581][ T10] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 36.988913][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.996570][ T10] CR2: 0000000000000098 CR3: 00000000072aa000 CR4: 00000000003526b0 [ 37.005124][ T10] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.014779][ T10] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.024603][ T10] Call Trace: [ 37.027983][ T10] [ 37.030931][ T10] ? __cfi_down_write+0x10/0x10 [ 37.036065][ T10] ? _raw_spin_lock+0x8c/0x120 [ 37.040865][ T10] ? __cfi__raw_spin_lock+0x10/0x10 [ 37.046195][ T10] ? mutex_unlock+0x8b/0x240 [ 37.050878][ T10] ? __cfi_mutex_unlock+0x10/0x10 [ 37.056193][ T10] rust_binderfs_remove_file+0x6c/0x110 [ 37.062649][ T10] _RNvXs2_NtCshgDM7dBCdno_11rust_binder7processNtB5_7ProcessNtNtCs43vyB533jt3_6kernel9workqueue8WorkItem3run+0x9d4/0x2860 [ 37.075702][ T10] ? update_curr_dl_se+0x10c/0xb20 [ 37.081195][ T10] ? __cfi___update_load_avg_cfs_rq+0x10/0x10 [ 37.087548][ T10] ? update_curr+0x60d/0xc60 [ 37.092828][ T10] ? __cfi__RNvXs2_NtCshgDM7dBCdno_11rust_binder7processNtB5_7ProcessNtNtCs43vyB533jt3_6kernel9workqueue8WorkItem3run+0x10/0x10 [ 37.106242][ T10] ? update_load_avg+0x506/0x19a0 [ 37.111391][ T10] ? detach_entity_load_avg+0x7b0/0x7b0 [ 37.117170][ T10] ? dequeue_entity+0xa9c/0x1750 [ 37.122317][ T10] ? tg_unthrottle_up+0x980/0x980 [ 37.127440][ T10] ? stack_trace_save+0x9d/0xe0 [ 37.132483][ T10] ? kvm_sched_clock_read+0x15/0x30 [ 37.137709][ T10] ? sched_clock_noinstr+0xd/0x30 [ 37.142921][ T10] ? sched_clock+0x44/0x60 [ 37.147987][ T10] ? sched_clock_cpu+0x75/0x400 [ 37.153945][ T10] ? __cfi___update_load_avg_cfs_rq+0x10/0x10 [ 37.160761][ T10] ? sched_clock+0x44/0x60 [ 37.165541][ T10] ? xfd_validate_state+0x68/0x150 [ 37.171481][ T10] ? save_fpregs_to_fpstate+0x196/0x230 [ 37.177051][ T10] ? __kasan_check_write+0x18/0x20 [ 37.182163][ T10] ? __switch_to+0xc7b/0x1310 [ 37.188198][ T10] ? psi_group_change+0xb44/0x1130 [ 37.194115][ T10] ? __cfi___switch_to+0x10/0x10 [ 37.199091][ T10] ? _raw_spin_unlock+0x45/0x60 [ 37.204026][ T10] ? __switch_to_asm+0x3d/0x70 [ 37.208913][ T10] ? __schedule+0x1463/0x1f10 [ 37.213634][ T10] ? kick_pool+0xb9/0x550 [ 37.218522][ T10] process_scheduled_works+0x7d2/0x1020 [ 37.224464][ T10] worker_thread+0xc58/0x1250 [ 37.229348][ T10] ? schedule+0xc6/0x240 [ 37.233706][ T10] kthread+0x2c7/0x370 [ 37.237787][ T10] ? __cfi_worker_thread+0x10/0x10 [ 37.243557][ T10] ? __cfi_kthread+0x10/0x10 [ 37.248273][ T10] ret_from_fork+0x64/0xa0 [ 37.252840][ T10] ? __cfi_kthread+0x10/0x10 [ 37.257723][ T10] ret_from_fork_asm+0x1a/0x30 [ 37.262848][ T10] [ 37.266052][ T10] Modules linked in: [ 37.270788][ T10] CR2: 0000000000000098 [ 37.275303][ T10] ---[ end trace 0000000000000000 ]--- [ 37.281567][ T10] RIP: 0010:down_write+0x9a/0x2a0 [ 37.287235][ T10] Code: 48 c7 44 24 20 00 00 00 00 be 08 00 00 00 e8 9d 40 55 fc 4c 89 f7 be 08 00 00 00 e8 90 40 55 fc 48 8b 44 24 20 b9 01 00 00 00 48 0f b1 0b 0f 85 a0 00 00 00 48 c7 c0 c0 b9 20 87 48 c1 e8 03 [ 37.311664][ T10] RSP: 0018:ffffc900000a7500 EFLAGS: 00010256 [ 37.318339][ T10] RAX: 0000000000000000 RBX: 0000000000000098 RCX: 0000000000000001 [ 37.327298][ T10] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900000a7520 [ 37.335725][ T10] RBP: ffffc900000a7598 R08: ffffc900000a7527 R09: 1ffff92000014ea4 [ 37.344142][ T10] R10: dffffc0000000000 R11: fffff52000014ea5 R12: dffffc0000000000 [ 37.352741][ T10] R13: 1ffff92000014ea0 R14: ffffc900000a7520 R15: 0000000000000000 [ 37.360904][ T10] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 37.370061][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.376931][ T10] CR2: 0000000000000098 CR3: 00000000072aa000 CR4: 00000000003526b0 [ 37.385338][ T10] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.394448][ T10] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.402613][ T10] Kernel panic - not syncing: Fatal exception [ 37.409245][ T10] Kernel Offset: disabled [ 37.413865][ T10] Rebooting in 86400 seconds..