./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2866721021 <...> DUID 00:04:11:31:ea:d8:bb:db:47:a8:80:cb:7d:0b:3c:d8:ea:74 forked to background, child pid 4647 [ 51.095205][ T4648] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.105530][ T4648] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. execve("./syz-executor2866721021", ["./syz-executor2866721021"], 0x7ffc34d933b0 /* 10 vars */) = 0 brk(NULL) = 0x555556d1f000 brk(0x555556d1fc40) = 0x555556d1fc40 arch_prctl(ARCH_SET_FS, 0x555556d1f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2866721021", 4096) = 28 brk(0x555556d40c40) = 0x555556d40c40 brk(0x555556d41000) = 0x555556d41000 mprotect(0x7fd612310000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5075 attached , child_tidptr=0x555556d1f5d0) = 5075 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getpid( [pid 5074] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5076 ./strace-static-x86_64: Process 5076 attached [pid 5076] getpid( [pid 5075] <... getpid resumed>) = 5075 [pid 5076] <... getpid resumed>) = 5076 [pid 5076] mkdir("./syzkaller.Jn5Kz2", 0700 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] mkdir("./syzkaller.qcbK4V", 0700 [pid 5076] <... mkdir resumed>) = 0 [pid 5076] chmod("./syzkaller.Jn5Kz2", 0777) = 0 [pid 5076] chdir("./syzkaller.Jn5Kz2") = 0 [pid 5076] mkdir("./0", 0777) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5077 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5078 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5077 attached [pid 5077] getpid(./strace-static-x86_64: Process 5078 attached ) = 5077 [pid 5077] mkdir("./syzkaller.brEJR5", 0700 [pid 5078] chdir("./0" [pid 5075] chmod("./syzkaller.qcbK4V", 0777 [pid 5074] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5079 [pid 5078] <... chdir resumed>) = 0 [pid 5075] <... chmod resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5077] chmod("./syzkaller.brEJR5", 0777 [pid 5075] chdir("./syzkaller.qcbK4V" [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5077] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5080 attached ./strace-static-x86_64: Process 5079 attached [pid 5074] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5080 [pid 5078] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... chdir resumed>) = 0 [pid 5075] mkdir("./0", 0777 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] chdir("./syzkaller.brEJR5") = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5077] mkdir("./0", 0777 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getpid(./strace-static-x86_64: Process 5082 attached ./strace-static-x86_64: Process 5081 attached [pid 5074] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5081 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5082 [pid 5079] <... getpid resumed>) = 5079 [pid 5079] mkdir("./syzkaller.lVghve", 0700 [pid 5078] <... symlink resumed>) = 0 [pid 5078] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5082] chdir("./0" [pid 5078] <... madvise resumed>) = 0 [pid 5081] getpid( [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... chdir resumed>) = 0 [pid 5081] <... getpid resumed>) = 5081 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5083 [pid 5082] <... setpgid resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5083 attached [pid 5081] mkdir("./syzkaller.PSWRzq", 0700 [pid 5083] chdir("./0") = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5083] setpgid(0, 0) = 0 [pid 5080] getpid( [pid 5082] <... openat resumed>) = 3 [pid 5080] <... getpid resumed>) = 5080 [pid 5082] write(3, "1000", 4 [pid 5080] mkdir("./syzkaller.kN1z9l", 0700 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5082] <... write resumed>) = 4 [pid 5082] close(3 [pid 5083] write(3, "1000", 4 [pid 5082] <... close resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5083] close(3 [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 5081] chmod("./syzkaller.PSWRzq", 0777 [pid 5079] chmod("./syzkaller.lVghve", 0777 [pid 5083] <... close resumed>) = 0 [pid 5083] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] <... symlink resumed>) = 0 [pid 5083] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... chmod resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5082] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] chdir("./syzkaller.PSWRzq" [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... chmod resumed>) = 0 [pid 5078] write(3, "1", 1 [pid 5083] <... openat resumed>) = 3 [pid 5083] write(3, "1", 1 [pid 5079] chdir("./syzkaller.lVghve" [pid 5083] <... write resumed>) = 1 [pid 5082] <... madvise resumed>) = 0 [pid 5081] <... chdir resumed>) = 0 [pid 5080] chmod("./syzkaller.kN1z9l", 0777 [pid 5079] <... chdir resumed>) = 0 [pid 5078] <... write resumed>) = 1 [pid 5083] write(3, "\x32\x00", 2 [pid 5081] mkdir("./0", 0777 [pid 5083] <... write resumed>) = 2 [pid 5082] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... chmod resumed>) = 0 [pid 5079] mkdir("./0", 0777 [pid 5078] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5083] exit_group(0 [pid 5078] <... write resumed>) = 2 [pid 5083] <... exit_group resumed>) = ? [pid 5082] <... openat resumed>) = 3 [pid 5078] exit_group(0 [pid 5082] write(3, "1", 1 [pid 5080] chdir("./syzkaller.kN1z9l" [pid 5078] <... exit_group resumed>) = ? [pid 5082] <... write resumed>) = 1 [pid 5079] <... mkdir resumed>) = 0 [pid 5082] write(3, "\x32\x00", 2 [pid 5080] <... chdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./0", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] +++ exited with 0 +++ [pid 5080] <... mkdir resumed>) = 0 [pid 5078] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] <... write resumed>) = 2 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5084 [pid 5077] fstat(3, [pid 5076] fstat(3, ./strace-static-x86_64: Process 5084 attached [pid 5082] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5085 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5084] chdir("./0" [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5084] <... chdir resumed>) = 0 [pid 5082] <... exit_group resumed>) = ? [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5086 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5085 attached [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5085] chdir("./0" [pid 5084] <... prctl resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] <... chdir resumed>) = 0 [pid 5084] setpgid(0, 0 [pid 5077] lstat("./0/binderfs", [pid 5076] lstat("./0/binderfs", [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... setpgid resumed>) = 0 [pid 5082] +++ exited with 0 +++ [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5086 attached [pid 5085] <... prctl resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] unlink("./0/binderfs" [pid 5076] unlink("./0/binderfs" [pid 5086] chdir("./0" [pid 5085] setpgid(0, 0 [pid 5084] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5086] <... chdir resumed>) = 0 [pid 5085] <... setpgid resumed>) = 0 [pid 5084] write(3, "1000", 4 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] <... write resumed>) = 4 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5086] <... prctl resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5084] close(3 [pid 5077] close(3 [pid 5076] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5086] setpgid(0, 0 [pid 5085] write(3, "1000", 4 [pid 5084] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5086] <... setpgid resumed>) = 0 [pid 5085] <... write resumed>) = 4 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5077] rmdir("./0" [pid 5076] rmdir("./0" [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] close(3 [pid 5084] <... symlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5086] <... openat resumed>) = 3 [pid 5085] <... close resumed>) = 0 [pid 5084] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] mkdir("./1", 0777 [pid 5076] mkdir("./1", 0777 [pid 5086] write(3, "1000", 4 [pid 5085] symlink("/dev/binderfs", "./binderfs" [pid 5084] <... madvise resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] fstat(3, [pid 5086] <... write resumed>) = 4 [pid 5085] <... symlink resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached [pid 5086] close(3 [pid 5085] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5084] <... openat resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5086] <... close resumed>) = 0 [pid 5085] <... madvise resumed>) = 0 [pid 5084] write(3, "1", 1 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5087 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5088 [pid 5086] symlink("/dev/binderfs", "./binderfs" [pid 5085] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5084] <... write resumed>) = 1 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5088 attached [pid 5087] chdir("./1" [pid 5086] <... symlink resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5084] write(3, "\x32\x00", 2 [pid 5088] chdir("./1" [pid 5087] <... chdir resumed>) = 0 [pid 5086] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5085] write(3, "1", 1 [pid 5084] <... write resumed>) = 2 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] <... madvise resumed>) = 0 [pid 5085] <... write resumed>) = 1 [pid 5084] exit_group(0 [pid 5075] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... prctl resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5085] write(3, "\x32\x00", 2 [pid 5084] <... exit_group resumed>) = ? [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5088] <... chdir resumed>) = 0 [pid 5087] setpgid(0, 0 [pid 5086] <... openat resumed>) = 3 [pid 5085] <... write resumed>) = 2 [pid 5084] +++ exited with 0 +++ [pid 5075] lstat("./0/binderfs", [pid 5087] <... setpgid resumed>) = 0 [pid 5086] write(3, "1", 1 [pid 5085] exit_group(0 [pid 5086] <... write resumed>) = 1 [pid 5085] <... exit_group resumed>) = ? [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] write(3, "\x32\x00", 2 [pid 5085] +++ exited with 0 +++ [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] unlink("./0/binderfs" [pid 5088] <... prctl resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5086] <... write resumed>) = 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... restart_syscall resumed>) = 0 [pid 5086] exit_group(0 [pid 5087] write(3, "1000", 4 [pid 5088] setpgid(0, 0 [pid 5075] <... unlink resumed>) = 0 [pid 5086] <... exit_group resumed>) = ? [pid 5088] <... setpgid resumed>) = 0 [pid 5087] <... write resumed>) = 4 [pid 5086] +++ exited with 0 +++ [pid 5081] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5087] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5087] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(3 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5087] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5081] getdents64(3, [pid 5075] rmdir("./0" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5080] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5088] <... openat resumed>) = 3 [pid 5087] <... madvise resumed>) = 0 [pid 5081] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./1", 0777 [pid 5088] write(3, "1000", 4 [pid 5087] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... write resumed>) = 4 [pid 5088] close(3) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5081] lstat("./0/binderfs", [pid 5080] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5088] <... symlink resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] lstat("./0/binderfs", [pid 5075] <... mkdir resumed>) = 0 [pid 5088] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5087] write(3, "1", 1 [pid 5081] unlink("./0/binderfs" [pid 5080] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... madvise resumed>) = 0 [pid 5087] <... write resumed>) = 1 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./0/binderfs" [pid 5088] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5087] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5080] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5089 attached [pid 5088] <... openat resumed>) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5088] write(3, "1", 1) = 1 [pid 5087] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5089 [pid 5089] chdir("./1" [pid 5088] write(3, "\x32\x00", 2 [pid 5087] exit_group(0 [pid 5081] close(3 [pid 5080] lstat("./0/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5089] <... chdir resumed>) = 0 [pid 5087] <... exit_group resumed>) = ? [pid 5088] <... write resumed>) = 2 [pid 5081] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] rmdir("./0" [pid 5080] unlink("./0/binderfs" [pid 5079] <... close resumed>) = 0 [pid 5088] exit_group(0) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5079] rmdir("./0" [pid 5089] <... prctl resumed>) = 0 [pid 5088] +++ exited with 0 +++ [pid 5087] +++ exited with 0 +++ [pid 5081] mkdir("./1", 0777 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5089] setpgid(0, 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] <... setpgid resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] mkdir("./1", 0777 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5090 [pid 5080] rmdir("./0" [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5091 attached [pid 5089] write(3, "1000", 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5091 [pid 5077] fstat(3, [pid 5076] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5091] chdir("./1" [pid 5089] <... write resumed>) = 4 [pid 5080] mkdir("./1", 0777 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5090 attached [pid 5091] <... chdir resumed>) = 0 [pid 5089] close(3 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] fstat(3, [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] chdir("./1" [pid 5089] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5091] <... prctl resumed>) = 0 [pid 5090] <... chdir resumed>) = 0 [pid 5089] symlink("/dev/binderfs", "./binderfs" [pid 5077] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5090] <... prctl resumed>) = 0 [pid 5077] lstat("./1/binderfs", [pid 5076] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] setpgid(0, 0 [pid 5089] <... symlink resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5092 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5091] setpgid(0, 0 [pid 5090] <... setpgid resumed>) = 0 [pid 5089] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] unlink("./1/binderfs" [pid 5076] lstat("./1/binderfs", ./strace-static-x86_64: Process 5092 attached [pid 5091] <... setpgid resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... madvise resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5092] chdir("./1" [pid 5090] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] getdents64(3, [pid 5076] unlink("./1/binderfs" [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] <... chdir resumed>) = 0 [pid 5090] write(3, "1000", 4 [pid 5089] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] <... openat resumed>) = 3 [pid 5090] <... write resumed>) = 4 [pid 5089] write(3, "1", 1 [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5092] <... prctl resumed>) = 0 [pid 5091] write(3, "1000", 4 [pid 5090] close(3 [pid 5089] <... write resumed>) = 1 [pid 5077] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5092] setpgid(0, 0 [pid 5091] <... write resumed>) = 4 [pid 5090] <... close resumed>) = 0 [pid 5089] write(3, "\x32\x00", 2 [pid 5077] rmdir("./1" [pid 5076] close(3 [pid 5092] <... setpgid resumed>) = 0 [pid 5091] close(3 [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5091] <... close resumed>) = 0 [pid 5090] <... symlink resumed>) = 0 [pid 5089] <... write resumed>) = 2 [pid 5077] mkdir("./2", 0777 [pid 5076] rmdir("./1" [pid 5092] <... openat resumed>) = 3 [pid 5091] symlink("/dev/binderfs", "./binderfs" [pid 5090] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5089] exit_group(0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5092] write(3, "1000", 4 [pid 5091] <... symlink resumed>) = 0 [pid 5090] <... madvise resumed>) = 0 [pid 5089] <... exit_group resumed>) = ? [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./2", 0777 [pid 5092] <... write resumed>) = 4 [pid 5091] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5090] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5089] +++ exited with 0 +++ [pid 5076] <... mkdir resumed>) = 0 [pid 5092] close(3 [pid 5091] <... madvise resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5093 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached [pid 5092] <... close resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5090] write(3, "1", 1 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5092] symlink("/dev/binderfs", "./binderfs" [pid 5091] <... openat resumed>) = 3 [pid 5090] <... write resumed>) = 1 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5094 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5092] <... symlink resumed>) = 0 [pid 5091] write(3, "1", 1 [pid 5090] write(3, "\x32\x00", 2 [pid 5075] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5093 attached [pid 5094] chdir("./2" [pid 5092] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5091] <... write resumed>) = 1 [pid 5090] <... write resumed>) = 2 [pid 5094] <... chdir resumed>) = 0 [pid 5092] <... madvise resumed>) = 0 [pid 5091] write(3, "\x32\x00", 2 [pid 5090] exit_group(0 [pid 5092] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5091] <... write resumed>) = 2 [pid 5090] <... exit_group resumed>) = ? [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] chdir("./2" [pid 5092] <... openat resumed>) = 3 [pid 5091] exit_group(0 [pid 5090] +++ exited with 0 +++ [pid 5075] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5094] <... prctl resumed>) = 0 [pid 5092] write(3, "1", 1 [pid 5091] <... exit_group resumed>) = ? [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] <... write resumed>) = 1 [pid 5092] write(3, "\x32\x00", 2 [pid 5094] setpgid(0, 0 [pid 5093] <... chdir resumed>) = 0 [pid 5092] <... write resumed>) = 2 [pid 5091] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5092] exit_group(0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5094] <... setpgid resumed>) = 0 [pid 5093] <... prctl resumed>) = 0 [pid 5092] <... exit_group resumed>) = ? [pid 5081] <... restart_syscall resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] setpgid(0, 0 [pid 5092] +++ exited with 0 +++ [pid 5075] fstat(3, [pid 5093] <... setpgid resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5094] <... openat resumed>) = 3 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] write(3, "1000", 4 [pid 5093] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5093] write(3, "1000", 4 [pid 5079] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5094] <... write resumed>) = 4 [pid 5093] <... write resumed>) = 4 [pid 5080] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5094] close(3 [pid 5093] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5094] <... close resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5080] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5094] symlink("/dev/binderfs", "./binderfs" [pid 5093] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] <... symlink resumed>) = 0 [pid 5093] <... symlink resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5081] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5093] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] fstat(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./1/binderfs", [pid 5094] <... madvise resumed>) = 0 [pid 5093] <... madvise resumed>) = 0 [pid 5081] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5094] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5093] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = 3 [pid 5081] lstat("./1/binderfs", [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] write(3, "1", 1 [pid 5093] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] lstat("./1/binderfs", [pid 5080] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./1/binderfs" [pid 5094] <... write resumed>) = 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5094] write(3, "\x32\x00", 2 [pid 5081] unlink("./1/binderfs" [pid 5080] lstat("./1/binderfs", [pid 5079] unlink("./1/binderfs" [pid 5075] getdents64(3, [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] unlink("./1/binderfs" [pid 5079] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] close(3 [pid 5075] close(3 [pid 5093] <... write resumed>) = 1 [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5093] write(3, "\x32\x00", 2 [pid 5094] <... write resumed>) = 2 [pid 5093] <... write resumed>) = 2 [pid 5081] rmdir("./1" [pid 5080] close(3 [pid 5079] rmdir("./1" [pid 5075] <... close resumed>) = 0 [pid 5094] exit_group(0 [pid 5093] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5093] <... exit_group resumed>) = ? [pid 5079] <... rmdir resumed>) = 0 [pid 5094] <... exit_group resumed>) = ? [pid 5093] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./1" [pid 5079] mkdir("./2", 0777 [pid 5075] rmdir("./1" [pid 5081] mkdir("./2", 0777 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] mkdir("./2", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./2", 0777 [pid 5077] <... openat resumed>) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... mkdir resumed>) = 0 [pid 5077] lstat("./2/binderfs", [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./2/binderfs") = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5096 [pid 5077] rmdir("./2" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5095 [pid 5077] <... rmdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5097 [pid 5077] mkdir("./3", 0777./strace-static-x86_64: Process 5098 attached ./strace-static-x86_64: Process 5096 attached [pid 5094] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5098 [pid 5077] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5095 attached [pid 5098] chdir("./2" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5099 attached ./strace-static-x86_64: Process 5097 attached [pid 5098] <... chdir resumed>) = 0 [pid 5096] chdir("./2" [pid 5095] chdir("./2" [pid 5099] chdir("./3" [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] chdir("./2" [pid 5096] <... chdir resumed>) = 0 [pid 5095] <... chdir resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5099 [pid 5099] <... chdir resumed>) = 0 [pid 5098] <... prctl resumed>) = 0 [pid 5097] <... chdir resumed>) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] setpgid(0, 0 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... prctl resumed>) = 0 [pid 5095] <... prctl resumed>) = 0 [pid 5099] <... prctl resumed>) = 0 [pid 5098] <... setpgid resumed>) = 0 [pid 5097] <... prctl resumed>) = 0 [pid 5096] setpgid(0, 0 [pid 5095] setpgid(0, 0 [pid 5099] setpgid(0, 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] setpgid(0, 0 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] <... setpgid resumed>) = 0 [pid 5076] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5099] <... setpgid resumed>) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] <... setpgid resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] write(3, "1000", 4 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] <... openat resumed>) = 3 [pid 5095] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5099] <... openat resumed>) = 3 [pid 5098] <... write resumed>) = 4 [pid 5097] <... openat resumed>) = 3 [pid 5096] write(3, "1000", 4 [pid 5095] write(3, "1000", 4 [pid 5076] <... openat resumed>) = 3 [pid 5099] write(3, "1000", 4 [pid 5098] close(3 [pid 5097] write(3, "1000", 4 [pid 5096] <... write resumed>) = 4 [pid 5095] <... write resumed>) = 4 [pid 5076] fstat(3, [pid 5099] <... write resumed>) = 4 [pid 5098] <... close resumed>) = 0 [pid 5097] <... write resumed>) = 4 [pid 5096] close(3 [pid 5095] close(3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5099] close(3 [pid 5098] symlink("/dev/binderfs", "./binderfs" [pid 5097] close(3 [pid 5096] <... close resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5099] <... close resumed>) = 0 [pid 5098] <... symlink resumed>) = 0 [pid 5097] <... close resumed>) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs" [pid 5095] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5099] symlink("/dev/binderfs", "./binderfs" [pid 5098] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5097] symlink("/dev/binderfs", "./binderfs" [pid 5096] <... symlink resumed>) = 0 [pid 5095] <... symlink resumed>) = 0 [pid 5076] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5099] <... symlink resumed>) = 0 [pid 5098] <... madvise resumed>) = 0 [pid 5097] <... symlink resumed>) = 0 [pid 5096] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5095] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5099] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5098] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5097] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5096] <... madvise resumed>) = 0 [pid 5095] <... madvise resumed>) = 0 [pid 5076] lstat("./2/binderfs", [pid 5099] <... madvise resumed>) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] <... madvise resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5095] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5099] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5098] write(3, "1", 1 [pid 5097] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5096] <... openat resumed>) = 3 [pid 5095] <... openat resumed>) = 3 [pid 5076] unlink("./2/binderfs" [pid 5099] <... openat resumed>) = 3 [pid 5098] <... write resumed>) = 1 [pid 5097] <... openat resumed>) = 3 [pid 5096] write(3, "1", 1 [pid 5095] write(3, "1", 1 [pid 5076] <... unlink resumed>) = 0 [pid 5099] write(3, "1", 1 [pid 5098] write(3, "\x32\x00", 2 [pid 5097] write(3, "1", 1 [pid 5076] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./2" [pid 5096] <... write resumed>) = 1 [pid 5095] <... write resumed>) = 1 [pid 5076] <... rmdir resumed>) = 0 [pid 5096] write(3, "\x32\x00", 2 [pid 5095] write(3, "\x32\x00", 2 [pid 5076] mkdir("./3", 0777 [pid 5098] <... write resumed>) = 2 [pid 5097] <... write resumed>) = 1 [pid 5076] <... mkdir resumed>) = 0 [pid 5099] <... write resumed>) = 1 [pid 5097] write(3, "\x32\x00", 2 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5099] write(3, "\x32\x00", 2 [pid 5095] <... write resumed>) = 2 [pid 5095] exit_group(0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5100 [pid 5095] <... exit_group resumed>) = ? [pid 5095] +++ exited with 0 +++ [pid 5098] exit_group(0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5098] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5100 attached [pid 5075] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5100] chdir("./3") = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5100] <... prctl resumed>) = 0 [pid 5099] <... write resumed>) = 2 [pid 5098] +++ exited with 0 +++ [pid 5097] <... write resumed>) = 2 [pid 5096] <... write resumed>) = 2 [pid 5100] setpgid(0, 0 [pid 5099] exit_group(0 [pid 5097] exit_group(0 [pid 5075] <... openat resumed>) = 3 [pid 5100] <... setpgid resumed>) = 0 [pid 5099] <... exit_group resumed>) = ? [pid 5097] <... exit_group resumed>) = ? [pid 5096] exit_group(0 [pid 5075] fstat(3, [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] +++ exited with 0 +++ [pid 5097] +++ exited with 0 +++ [pid 5096] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5100] <... openat resumed>) = 3 [pid 5081] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5100] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] getdents64(3, [pid 5100] <... write resumed>) = 4 [pid 5096] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5100] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5100] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5077] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5100] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5100] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5100] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] lstat("./2/binderfs", [pid 5100] <... madvise resumed>) = 0 [pid 5081] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5100] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5100] <... openat resumed>) = 3 [pid 5081] lstat("./2/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./2/binderfs" [pid 5100] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5100] <... write resumed>) = 1 [pid 5081] unlink("./2/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5100] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] fstat(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] lstat("./3/binderfs", [pid 5075] getdents64(3, [pid 5100] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5100] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./3/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5100] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] lstat("./2/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5100] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5080] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5081] rmdir("./2" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./2/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] rmdir("./2" [pid 5077] close(3) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] rmdir("./3" [pid 5080] lstat("./2/binderfs", [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./4", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] mkdir("./3", 0777 [pid 5079] getdents64(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5075] mkdir("./3", 0777 [pid 5080] unlink("./2/binderfs" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5076] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5101 [pid 5080] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached [pid 5101] chdir("./4") = 0 [pid 5076] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5079] close(3 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0 [pid 5076] fstat(3, [pid 5080] <... close resumed>) = 0 [pid 5101] <... setpgid resumed>) = 0 [pid 5080] rmdir("./2" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5102 [pid 5079] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5103 [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./3", 0777 [pid 5079] rmdir("./2" [pid 5076] getdents64(3, [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5101] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... rmdir resumed>) = 0 [pid 5076] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5101] write(3, "1000", 4) = 4 [pid 5101] close(3) = 0 [pid 5079] mkdir("./3", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5104 [pid 5101] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] lstat("./3/binderfs", ./strace-static-x86_64: Process 5102 attached [pid 5101] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5102] chdir("./3" [pid 5101] <... madvise resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5102] <... chdir resumed>) = 0 [pid 5101] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] unlink("./3/binderfs" [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5105 [pid 5102] <... prctl resumed>) = 0 [pid 5101] write(3, "1", 1 [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5105 attached ./strace-static-x86_64: Process 5104 attached ./strace-static-x86_64: Process 5103 attached [pid 5102] setpgid(0, 0 [pid 5101] <... write resumed>) = 1 [pid 5076] getdents64(3, [pid 5105] chdir("./3" [pid 5102] <... setpgid resumed>) = 0 [pid 5101] write(3, "\x32\x00", 2 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5105] <... chdir resumed>) = 0 [pid 5104] chdir("./3" [pid 5103] chdir("./3" [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] <... write resumed>) = 2 [pid 5076] close(3 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] <... chdir resumed>) = 0 [pid 5103] <... chdir resumed>) = 0 [pid 5102] <... openat resumed>) = 3 [pid 5101] exit_group(0 [pid 5076] <... close resumed>) = 0 [pid 5105] <... prctl resumed>) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] write(3, "1000", 4 [pid 5101] <... exit_group resumed>) = ? [pid 5076] rmdir("./3" [pid 5105] setpgid(0, 0 [pid 5104] <... prctl resumed>) = 0 [pid 5103] <... prctl resumed>) = 0 [pid 5102] <... write resumed>) = 4 [pid 5101] +++ exited with 0 +++ [pid 5105] <... setpgid resumed>) = 0 [pid 5104] setpgid(0, 0 [pid 5102] close(3 [pid 5103] setpgid(0, 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5104] <... setpgid resumed>) = 0 [pid 5103] <... setpgid resumed>) = 0 [pid 5102] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] mkdir("./4", 0777 [pid 5105] <... openat resumed>) = 3 [pid 5102] symlink("/dev/binderfs", "./binderfs" [pid 5077] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5105] write(3, "1000", 4 [pid 5102] <... symlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5105] <... write resumed>) = 4 [pid 5102] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5105] close(3 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] <... madvise resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] <... close resumed>) = 0 [pid 5104] <... openat resumed>) = 3 [pid 5102] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] fstat(3, [pid 5105] symlink("/dev/binderfs", "./binderfs" [pid 5103] <... openat resumed>) = 3 [pid 5102] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5105] <... symlink resumed>) = 0 [pid 5104] write(3, "1000", 4 [pid 5103] write(3, "1000", 4 [pid 5102] write(3, "1", 1 [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5106 [pid 5105] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5104] <... write resumed>) = 4 [pid 5103] <... write resumed>) = 4 [pid 5102] <... write resumed>) = 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5106 attached [pid 5105] <... madvise resumed>) = 0 [pid 5104] close(3 [pid 5103] close(3 [pid 5102] write(3, "\x32\x00", 2 [pid 5077] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] chdir("./4" [pid 5105] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5104] <... close resumed>) = 0 [pid 5103] <... close resumed>) = 0 [pid 5102] <... write resumed>) = 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5106] <... chdir resumed>) = 0 [pid 5105] <... openat resumed>) = 3 [pid 5104] symlink("/dev/binderfs", "./binderfs" [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5102] exit_group(0 [pid 5077] lstat("./4/binderfs", [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5105] write(3, "1", 1 [pid 5102] <... exit_group resumed>) = ? [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5106] <... prctl resumed>) = 0 [pid 5105] <... write resumed>) = 1 [pid 5104] <... symlink resumed>) = 0 [pid 5103] <... symlink resumed>) = 0 [pid 5102] +++ exited with 0 +++ [pid 5077] unlink("./4/binderfs" [pid 5106] setpgid(0, 0 [pid 5105] write(3, "\x32\x00", 2 [pid 5104] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5103] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] <... unlink resumed>) = 0 [pid 5106] <... setpgid resumed>) = 0 [pid 5105] <... write resumed>) = 2 [pid 5104] <... madvise resumed>) = 0 [pid 5077] getdents64(3, [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] exit_group(0 [pid 5104] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5103] <... madvise resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5106] <... openat resumed>) = 3 [pid 5105] <... exit_group resumed>) = ? [pid 5104] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5106] write(3, "1000", 4 [pid 5105] +++ exited with 0 +++ [pid 5104] write(3, "1", 1 [pid 5103] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... close resumed>) = 0 [pid 5106] <... write resumed>) = 4 [pid 5104] <... write resumed>) = 1 [pid 5103] <... openat resumed>) = 3 [pid 5077] rmdir("./4" [pid 5106] close(3 [pid 5104] write(3, "\x32\x00", 2 [pid 5103] write(3, "1", 1 [pid 5077] <... rmdir resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5077] mkdir("./5", 0777 [pid 5106] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... mkdir resumed>) = 0 [pid 5106] <... symlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5106] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5107 [pid 5106] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5106] write(3, "1", 1) = 1 [pid 5104] <... write resumed>) = 2 [pid 5103] <... write resumed>) = 1 [pid 5081] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5106] write(3, "\x32\x00", 2 [pid 5103] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5107 attached [pid 5106] <... write resumed>) = 2 [pid 5104] exit_group(0 [pid 5103] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5106] exit_group(0 [pid 5103] exit_group(0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5104] <... exit_group resumed>) = ? [pid 5103] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5106] <... exit_group resumed>) = ? [pid 5106] +++ exited with 0 +++ [pid 5103] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5081] fstat(3, [pid 5079] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] chdir("./5" [pid 5081] getdents64(3, [pid 5079] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] <... chdir resumed>) = 0 [pid 5104] +++ exited with 0 +++ [pid 5081] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5076] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5075] fstat(3, [pid 5107] <... prctl resumed>) = 0 [pid 5081] lstat("./3/binderfs", [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] getdents64(3, [pid 5107] setpgid(0, 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5107] <... setpgid resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] unlink("./3/binderfs" [pid 5076] getdents64(3, [pid 5079] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5107] <... openat resumed>) = 3 [pid 5080] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] write(3, "1000", 4 [pid 5081] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5107] <... write resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5107] close(3 [pid 5081] getdents64(3, [pid 5075] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./3/binderfs", [pid 5076] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5107] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] <... symlink resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5080] fstat(3, [pid 5075] lstat("./3/binderfs", [pid 5076] lstat("./4/binderfs", [pid 5079] unlink("./3/binderfs" [pid 5107] <... madvise resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] getdents64(3, [pid 5075] unlink("./3/binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... close resumed>) = 0 [pid 5080] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./4/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./3" [pid 5080] lstat("./3/binderfs", [pid 5079] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5107] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5107] write(3, "1", 1 [pid 5081] mkdir("./4", 0777 [pid 5080] unlink("./3/binderfs" [pid 5079] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5107] <... write resumed>) = 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5107] write(3, "\x32\x00", 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5080] close(3 [pid 5079] rmdir("./3" [pid 5075] rmdir("./3" [pid 5080] <... close resumed>) = 0 [pid 5076] rmdir("./4" [pid 5107] <... write resumed>) = 2 [pid 5080] rmdir("./3" [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5108 attached [pid 5107] exit_group(0) = ? [pid 5080] <... rmdir resumed>) = 0 [pid 5079] mkdir("./4", 0777 [pid 5108] chdir("./4" [pid 5107] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5108 [pid 5076] mkdir("./5", 0777 [pid 5075] mkdir("./4", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5080] mkdir("./4", 0777 [pid 5108] <... chdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5110 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5109 [pid 5077] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5109 attached [pid 5109] chdir("./4") = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5109] <... prctl resumed>) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5111 [pid 5077] fstat(3, [pid 5109] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5112 [pid 5109] write(3, "1000", 4 [pid 5077] getdents64(3, [pid 5109] <... write resumed>) = 4 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5111 attached [pid 5109] close(3 [pid 5108] <... prctl resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5110 attached [pid 5111] chdir("./4" [pid 5109] <... close resumed>) = 0 [pid 5108] setpgid(0, 0 [pid 5077] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5112 attached [pid 5111] <... chdir resumed>) = 0 [pid 5110] chdir("./4" [pid 5109] symlink("/dev/binderfs", "./binderfs" [pid 5108] <... setpgid resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5112] chdir("./5" [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... chdir resumed>) = 0 [pid 5109] <... symlink resumed>) = 0 [pid 5112] <... chdir resumed>) = 0 [pid 5111] <... prctl resumed>) = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] lstat("./5/binderfs", [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] setpgid(0, 0 [pid 5110] <... prctl resumed>) = 0 [pid 5109] <... madvise resumed>) = 0 [pid 5112] <... prctl resumed>) = 0 [pid 5111] <... setpgid resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5109] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5108] <... openat resumed>) = 3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5112] setpgid(0, 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... setpgid resumed>) = 0 [pid 5109] <... openat resumed>) = 3 [pid 5108] write(3, "1000", 4 [pid 5077] unlink("./5/binderfs" [pid 5112] <... setpgid resumed>) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] write(3, "1000", 4 [pid 5110] <... openat resumed>) = 3 [pid 5109] write(3, "1", 1 [pid 5108] <... write resumed>) = 4 [pid 5077] <... unlink resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] <... write resumed>) = 4 [pid 5110] write(3, "1000", 4 [pid 5109] <... write resumed>) = 1 [pid 5108] close(3 [pid 5077] getdents64(3, [pid 5112] <... openat resumed>) = 3 [pid 5111] close(3 [pid 5110] <... write resumed>) = 4 [pid 5109] write(3, "\x32\x00", 2 [pid 5108] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5111] <... close resumed>) = 0 [pid 5110] close(3 [pid 5077] close(3 [pid 5111] symlink("/dev/binderfs", "./binderfs" [pid 5110] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5110] symlink("/dev/binderfs", "./binderfs" [pid 5111] <... symlink resumed>) = 0 [pid 5110] <... symlink resumed>) = 0 [pid 5077] rmdir("./5" [pid 5111] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5110] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5110] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... rmdir resumed>) = 0 [pid 5111] <... madvise resumed>) = 0 [pid 5110] <... openat resumed>) = 3 [pid 5077] mkdir("./6", 0777 [pid 5110] write(3, "1", 1 [pid 5112] write(3, "1000", 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5112] <... write resumed>) = 4 [pid 5112] close(3) = 0 [pid 5112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5108] symlink("/dev/binderfs", "./binderfs" [pid 5111] write(3, "1", 1 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5113 [pid 5112] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5112] write(3, "1", 1 [pid 5108] <... symlink resumed>) = 0 [pid 5108] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5113 attached [pid 5113] chdir("./6" [pid 5108] <... madvise resumed>) = 0 [pid 5113] <... chdir resumed>) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5113] <... prctl resumed>) = 0 [pid 5113] setpgid(0, 0 [pid 5108] <... openat resumed>) = 3 [pid 5113] <... setpgid resumed>) = 0 [pid 5108] write(3, "1", 1 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5113] write(3, "1000", 4) = 4 [pid 5113] close(3) = 0 [pid 5113] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5113] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5112] <... write resumed>) = 1 [pid 5111] <... write resumed>) = 1 [pid 5110] <... write resumed>) = 1 [pid 5108] <... write resumed>) = 1 [pid 5113] <... madvise resumed>) = 0 [pid 5112] write(3, "\x32\x00", 2 [pid 5111] write(3, "\x32\x00", 2 [pid 5110] write(3, "\x32\x00", 2 [pid 5113] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5108] write(3, "\x32\x00", 2 [pid 5113] <... openat resumed>) = 3 [pid 5113] write(3, "1", 1 [pid 5109] <... write resumed>) = 2 [pid 5109] exit_group(0) = ? [pid 5109] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5113] <... write resumed>) = 1 [pid 5112] <... write resumed>) = 2 [pid 5111] <... write resumed>) = 2 [pid 5110] <... write resumed>) = 2 [pid 5108] <... write resumed>) = 2 [pid 5079] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5113] write(3, "\x32\x00", 2 [pid 5110] exit_group(0 [pid 5113] <... write resumed>) = 2 [pid 5111] exit_group(0 [pid 5110] <... exit_group resumed>) = ? [pid 5108] exit_group(0 [pid 5079] <... openat resumed>) = 3 [pid 5111] <... exit_group resumed>) = ? [pid 5110] +++ exited with 0 +++ [pid 5108] <... exit_group resumed>) = ? [pid 5079] fstat(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5112] exit_group(0) = ? [pid 5080] <... restart_syscall resumed>) = 0 [pid 5111] +++ exited with 0 +++ [pid 5080] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5113] exit_group(0 [pid 5112] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5080] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5113] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5080] fstat(3, [pid 5079] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5113] +++ exited with 0 +++ [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] getdents64(3, [pid 5079] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./4/binderfs", [pid 5081] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./4/binderfs", [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./4/binderfs" [pid 5077] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] fstat(3, [pid 5080] unlink("./4/binderfs") = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5076] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5081] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] rmdir("./4" [pid 5079] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] getdents64(3, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] mkdir("./5", 0777 [pid 5079] rmdir("./4" [pid 5076] <... openat resumed>) = 3 [pid 5081] lstat("./4/binderfs", [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5075] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] unlink("./4/binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5114 [pid 5079] mkdir("./5", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... unlink resumed>) = 0 [pid 5077] lstat("./6/binderfs", [pid 5114] chdir("./5" [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] getdents64(3, [pid 5076] getdents64(3, [pid 5075] lstat("./4/binderfs", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5114] <... chdir resumed>) = 0 [pid 5077] unlink("./6/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5114] <... prctl resumed>) = 0 [pid 5114] setpgid(0, 0) = 0 [pid 5075] unlink("./4/binderfs" [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... unlink resumed>) = 0 [pid 5114] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5115 [pid 5077] getdents64(3, [pid 5076] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5114] write(3, "1000", 4 [pid 5081] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5114] <... write resumed>) = 4 [pid 5081] rmdir("./4" [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5115 attached [pid 5114] close(3 [pid 5115] chdir("./5" [pid 5114] <... close resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] lstat("./5/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5115] <... chdir resumed>) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs" [pid 5081] mkdir("./5", 0777 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] <... symlink resumed>) = 0 [pid 5077] rmdir("./6" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5115] <... prctl resumed>) = 0 [pid 5114] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5115] setpgid(0, 0 [pid 5114] <... madvise resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] unlink("./5/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5115] <... setpgid resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] <... openat resumed>) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5075] rmdir("./4" [pid 5115] <... openat resumed>) = 3 [pid 5114] write(3, "1", 1 [pid 5115] write(3, "1000", 4 [pid 5114] <... write resumed>) = 1 [pid 5075] <... rmdir resumed>) = 0 [pid 5115] <... write resumed>) = 4 [pid 5114] write(3, "\x32\x00", 2 [pid 5115] close(3 [pid 5114] <... write resumed>) = 2 [pid 5077] mkdir("./7", 0777 [pid 5076] getdents64(3, [pid 5075] mkdir("./5", 0777 [pid 5115] <... close resumed>) = 0 [pid 5114] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5116 [pid 5115] symlink("/dev/binderfs", "./binderfs" [pid 5114] <... exit_group resumed>) = ? [pid 5115] <... symlink resumed>) = 0 [pid 5114] +++ exited with 0 +++ [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5115] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] chdir("./5" [pid 5115] <... madvise resumed>) = 0 [pid 5116] <... chdir resumed>) = 0 [pid 5115] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] <... openat resumed>) = 3 [pid 5080] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5116] <... prctl resumed>) = 0 [pid 5115] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5116] setpgid(0, 0 [pid 5115] <... write resumed>) = 1 [pid 5080] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] rmdir("./5" [pid 5116] <... setpgid resumed>) = 0 [pid 5115] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5117 ./strace-static-x86_64: Process 5117 attached [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] <... write resumed>) = 2 [pid 5080] fstat(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5118 [pid 5117] chdir("./7" [pid 5116] <... openat resumed>) = 3 [pid 5115] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5118 attached [pid 5117] <... chdir resumed>) = 0 [pid 5116] write(3, "1000", 4 [pid 5115] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5076] mkdir("./6", 0777 [pid 5118] chdir("./5" [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] <... write resumed>) = 4 [pid 5115] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5118] <... chdir resumed>) = 0 [pid 5116] close(3 [pid 5080] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] <... prctl resumed>) = 0 [pid 5116] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] <... prctl resumed>) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs" [pid 5080] lstat("./5/binderfs", [pid 5118] setpgid(0, 0 [pid 5116] <... symlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5118] <... setpgid resumed>) = 0 [pid 5116] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] unlink("./5/binderfs" [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] setpgid(0, 0 [pid 5116] <... madvise resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5119 [pid 5118] <... openat resumed>) = 3 [pid 5117] <... setpgid resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5119 attached [pid 5118] write(3, "1000", 4 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5116] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] chdir("./6" [pid 5118] <... write resumed>) = 4 [pid 5117] <... openat resumed>) = 3 [pid 5116] write(3, "1", 1 [pid 5080] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5119] <... chdir resumed>) = 0 [pid 5118] close(3 [pid 5117] write(3, "1000", 4 [pid 5116] <... write resumed>) = 1 [pid 5080] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] <... close resumed>) = 0 [pid 5116] write(3, "\x32\x00", 2 [pid 5080] rmdir("./5" [pid 5119] <... prctl resumed>) = 0 [pid 5118] symlink("/dev/binderfs", "./binderfs" [pid 5117] <... write resumed>) = 4 [pid 5116] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5119] setpgid(0, 0 [pid 5118] <... symlink resumed>) = 0 [pid 5117] close(3 [pid 5116] exit_group(0 [pid 5080] mkdir("./6", 0777 [pid 5079] getdents64(3, [pid 5119] <... setpgid resumed>) = 0 [pid 5118] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5117] <... close resumed>) = 0 [pid 5116] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] <... madvise resumed>) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs" [pid 5116] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] <... openat resumed>) = 3 [pid 5118] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5117] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5120 attached [pid 5119] write(3, "1000", 4 [pid 5118] <... openat resumed>) = 3 [pid 5117] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5120 [pid 5079] lstat("./5/binderfs", [pid 5119] <... write resumed>) = 4 [pid 5118] write(3, "1", 1 [pid 5117] <... madvise resumed>) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5119] close(3 [pid 5118] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5119] <... close resumed>) = 0 [pid 5118] write(3, "\x32\x00", 2 [pid 5117] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] unlink("./5/binderfs" [pid 5120] chdir("./6" [pid 5119] symlink("/dev/binderfs", "./binderfs" [pid 5118] <... write resumed>) = 2 [pid 5117] <... openat resumed>) = 3 [pid 5119] <... symlink resumed>) = 0 [pid 5118] exit_group(0 [pid 5079] <... unlink resumed>) = 0 [pid 5117] write(3, "1", 1 [pid 5119] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5118] <... exit_group resumed>) = ? [pid 5117] <... write resumed>) = 1 [pid 5081] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5120] <... chdir resumed>) = 0 [pid 5119] <... madvise resumed>) = 0 [pid 5118] +++ exited with 0 +++ [pid 5117] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5119] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5119] write(3, "1", 1) = 1 [pid 5117] <... write resumed>) = 2 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] write(3, "\x32\x00", 2 [pid 5079] close(3 [pid 5119] <... write resumed>) = 2 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5119] exit_group(0 [pid 5117] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5119] <... exit_group resumed>) = ? [pid 5117] <... exit_group resumed>) = ? [pid 5081] fstat(3, [pid 5079] rmdir("./5" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5119] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] mkdir("./6", 0777 [pid 5081] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5120] <... setpgid resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] lstat("./5/binderfs", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5120] <... openat resumed>) = 3 [pid 5081] unlink("./5/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(3, [pid 5120] write(3, "1000", 4) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5120] close(3) = 0 [pid 5077] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] close(3 [pid 5075] getdents64(3, [pid 5120] <... symlink resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] fstat(3, [pid 5076] getdents64(3, [pid 5120] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] rmdir("./5" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5121 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5120] <... madvise resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5120] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... rmdir resumed>) = 0 [pid 5120] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5120] write(3, "1", 1 [pid 5081] mkdir("./6", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5120] <... write resumed>) = 1 ./strace-static-x86_64: Process 5121 attached [pid 5120] write(3, "\x32\x00", 2 [pid 5121] chdir("./6" [pid 5120] <... write resumed>) = 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./6/binderfs", [pid 5075] lstat("./5/binderfs", [pid 5121] <... chdir resumed>) = 0 [pid 5120] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5120] <... exit_group resumed>) = ? [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5121] <... prctl resumed>) = 0 [pid 5120] +++ exited with 0 +++ [pid 5077] lstat("./7/binderfs", [pid 5076] unlink("./6/binderfs" [pid 5075] unlink("./5/binderfs" [pid 5121] setpgid(0, 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5122 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5121] <... setpgid resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] unlink("./7/binderfs" [pid 5076] getdents64(3, [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5122 attached [pid 5121] <... openat resumed>) = 3 [pid 5080] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5121] <... write resumed>) = 4 [pid 5080] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5121] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5121] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] close(3 [pid 5121] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(3 [pid 5076] rmdir("./6" [pid 5075] <... close resumed>) = 0 [pid 5121] <... symlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5121] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] rmdir("./5" [pid 5122] chdir("./6" [pid 5121] <... madvise resumed>) = 0 [pid 5080] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./7" [pid 5076] <... rmdir resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5122] <... chdir resumed>) = 0 [pid 5121] <... openat resumed>) = 3 [pid 5080] lstat("./6/binderfs", [pid 5077] <... rmdir resumed>) = 0 [pid 5076] mkdir("./7", 0777 [pid 5075] mkdir("./6", 0777 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] write(3, "1", 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] mkdir("./8", 0777 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5122] <... prctl resumed>) = 0 [pid 5121] <... write resumed>) = 1 [pid 5080] unlink("./6/binderfs" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5123 attached [pid 5122] setpgid(0, 0 [pid 5121] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5122] <... setpgid resumed>) = 0 [pid 5121] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5123 [pid 5123] chdir("./6" [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5125 attached ./strace-static-x86_64: Process 5124 attached [pid 5123] <... chdir resumed>) = 0 [pid 5122] <... openat resumed>) = 3 [pid 5121] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5124 [pid 5125] chdir("./8" [pid 5124] chdir("./7" [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] write(3, "1000", 4 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5125 [pid 5125] <... chdir resumed>) = 0 [pid 5124] <... chdir resumed>) = 0 [pid 5123] <... prctl resumed>) = 0 [pid 5121] +++ exited with 0 +++ [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] setpgid(0, 0 [pid 5122] <... write resumed>) = 4 [pid 5080] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5125] <... prctl resumed>) = 0 [pid 5124] <... prctl resumed>) = 0 [pid 5123] <... setpgid resumed>) = 0 [pid 5122] close(3 [pid 5080] rmdir("./6" [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5125] setpgid(0, 0 [pid 5124] setpgid(0, 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5122] <... close resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5125] <... setpgid resumed>) = 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5122] symlink("/dev/binderfs", "./binderfs" [pid 5080] mkdir("./7", 0777 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] write(3, "1000", 4 [pid 5122] <... symlink resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5125] <... openat resumed>) = 3 [pid 5124] <... openat resumed>) = 3 [pid 5123] <... write resumed>) = 4 [pid 5122] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached [pid 5125] write(3, "1000", 4 [pid 5124] write(3, "1000", 4 [pid 5123] close(3 [pid 5122] <... madvise resumed>) = 0 [pid 5079] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] chdir("./7" [pid 5125] <... write resumed>) = 4 [pid 5124] <... write resumed>) = 4 [pid 5123] <... close resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5126 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... chdir resumed>) = 0 [pid 5125] close(3 [pid 5124] close(3 [pid 5123] symlink("/dev/binderfs", "./binderfs" [pid 5122] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] <... close resumed>) = 0 [pid 5124] <... close resumed>) = 0 [pid 5123] <... symlink resumed>) = 0 [pid 5122] write(3, "1", 1 [pid 5079] <... openat resumed>) = 3 [pid 5126] <... prctl resumed>) = 0 [pid 5125] symlink("/dev/binderfs", "./binderfs" [pid 5124] symlink("/dev/binderfs", "./binderfs" [pid 5123] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5122] <... write resumed>) = 1 [pid 5079] fstat(3, [pid 5125] <... symlink resumed>) = 0 [pid 5124] <... symlink resumed>) = 0 [pid 5122] write(3, "\x32\x00", 2 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5126] setpgid(0, 0 [pid 5125] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5124] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5123] <... madvise resumed>) = 0 [pid 5122] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5126] <... setpgid resumed>) = 0 [pid 5125] <... madvise resumed>) = 0 [pid 5124] <... madvise resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5122] exit_group(0 [pid 5125] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5124] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5123] <... openat resumed>) = 3 [pid 5122] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... openat resumed>) = 3 [pid 5124] <... openat resumed>) = 3 [pid 5123] write(3, "1", 1 [pid 5122] +++ exited with 0 +++ [pid 5079] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... openat resumed>) = 3 [pid 5125] write(3, "1", 1 [pid 5124] write(3, "1", 1 [pid 5123] <... write resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] write(3, "1000", 4 [pid 5125] <... write resumed>) = 1 [pid 5124] <... write resumed>) = 1 [pid 5123] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] lstat("./6/binderfs", [pid 5126] <... write resumed>) = 4 [pid 5125] write(3, "\x32\x00", 2 [pid 5124] write(3, "\x32\x00", 2 [pid 5081] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5126] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5079] unlink("./6/binderfs" [pid 5126] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... unlink resumed>) = 0 [pid 5126] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5126] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5126] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] close(3 [pid 5126] <... madvise resumed>) = 0 [pid 5125] <... write resumed>) = 2 [pid 5124] <... write resumed>) = 2 [pid 5123] <... write resumed>) = 2 [pid 5081] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5125] exit_group(0 [pid 5124] exit_group(0 [pid 5123] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./6" [pid 5126] <... openat resumed>) = 3 [pid 5125] <... exit_group resumed>) = ? [pid 5124] <... exit_group resumed>) = ? [pid 5123] <... exit_group resumed>) = ? [pid 5081] lstat("./6/binderfs", [pid 5126] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5126] <... write resumed>) = 1 [pid 5124] +++ exited with 0 +++ [pid 5126] write(3, "\x32\x00", 2 [pid 5081] unlink("./6/binderfs" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5126] <... write resumed>) = 2 [pid 5125] +++ exited with 0 +++ [pid 5123] +++ exited with 0 +++ [pid 5079] mkdir("./7", 0777 [pid 5126] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5126] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5126] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5127 attached [pid 5081] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5127 [pid 5077] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5127] chdir("./7" [pid 5081] rmdir("./6" [pid 5080] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5127] <... chdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5075] fstat(3, [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] mkdir("./7", 0777 [pid 5080] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5127] <... prctl resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5075] getdents64(3, [pid 5127] setpgid(0, 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5128 attached [pid 5127] <... setpgid resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5128 [pid 5080] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5128] chdir("./7" [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] lstat("./8/binderfs", [pid 5076] lstat("./7/binderfs", [pid 5075] lstat("./6/binderfs", [pid 5128] <... chdir resumed>) = 0 [pid 5127] <... openat resumed>) = 3 [pid 5080] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./8/binderfs" [pid 5076] unlink("./7/binderfs" [pid 5075] unlink("./6/binderfs" [pid 5128] <... prctl resumed>) = 0 [pid 5127] <... write resumed>) = 4 [pid 5080] lstat("./7/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5128] setpgid(0, 0 [pid 5127] close(3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5128] <... setpgid resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5080] unlink("./7/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5127] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5127] <... symlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] <... close resumed>) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5127] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] rmdir("./8" [pid 5076] <... close resumed>) = 0 [pid 5075] rmdir("./6" [pid 5128] write(3, "1000", 4 [pid 5127] <... madvise resumed>) = 0 [pid 5080] close(3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] rmdir("./7" [pid 5075] <... rmdir resumed>) = 0 [pid 5128] <... write resumed>) = 4 [pid 5127] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... close resumed>) = 0 [pid 5077] mkdir("./9", 0777 [pid 5075] mkdir("./7", 0777 [pid 5128] close(3 [pid 5127] <... openat resumed>) = 3 [pid 5080] rmdir("./7" [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5128] <... close resumed>) = 0 [pid 5127] write(3, "1", 1 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./8", 0777 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5128] symlink("/dev/binderfs", "./binderfs" [pid 5127] <... write resumed>) = 1 [pid 5080] mkdir("./8", 0777 [pid 5076] <... mkdir resumed>) = 0 [pid 5127] write(3, "\x32\x00", 2 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5129 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5130 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5132 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5131 [pid 5128] <... symlink resumed>) = 0 [pid 5127] <... write resumed>) = 2 ./strace-static-x86_64: Process 5132 attached ./strace-static-x86_64: Process 5130 attached [pid 5128] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5127] exit_group(0./strace-static-x86_64: Process 5131 attached ./strace-static-x86_64: Process 5129 attached [pid 5128] <... madvise resumed>) = 0 [pid 5127] <... exit_group resumed>) = ? [pid 5131] chdir("./8" [pid 5130] chdir("./9" [pid 5129] chdir("./7" [pid 5128] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5131] <... chdir resumed>) = 0 [pid 5129] <... chdir resumed>) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5132] chdir("./8" [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] <... chdir resumed>) = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] write(3, "1", 1 [pid 5127] +++ exited with 0 +++ [pid 5132] <... chdir resumed>) = 0 [pid 5131] <... prctl resumed>) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5129] <... prctl resumed>) = 0 [pid 5128] <... write resumed>) = 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5131] setpgid(0, 0 [pid 5130] <... prctl resumed>) = 0 [pid 5129] setpgid(0, 0 [pid 5128] write(3, "\x32\x00", 2 [pid 5132] <... prctl resumed>) = 0 [pid 5131] <... setpgid resumed>) = 0 [pid 5130] setpgid(0, 0 [pid 5129] <... setpgid resumed>) = 0 [pid 5132] setpgid(0, 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] <... setpgid resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] <... write resumed>) = 2 [pid 5132] <... setpgid resumed>) = 0 [pid 5131] <... openat resumed>) = 3 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... openat resumed>) = 3 [pid 5128] exit_group(0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5131] write(3, "1000", 4 [pid 5130] <... openat resumed>) = 3 [pid 5129] write(3, "1000", 4 [pid 5128] <... exit_group resumed>) = ? [pid 5132] <... openat resumed>) = 3 [pid 5131] <... write resumed>) = 4 [pid 5130] write(3, "1000", 4 [pid 5129] <... write resumed>) = 4 [pid 5131] close(3 [pid 5129] close(3 [pid 5130] <... write resumed>) = 4 [pid 5079] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] write(3, "1000", 4) = 4 [pid 5131] <... close resumed>) = 0 [pid 5130] close(3 [pid 5129] <... close resumed>) = 0 [pid 5128] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] close(3 [pid 5131] symlink("/dev/binderfs", "./binderfs" [pid 5130] <... close resumed>) = 0 [pid 5129] symlink("/dev/binderfs", "./binderfs" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5132] <... close resumed>) = 0 [pid 5131] <... symlink resumed>) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5129] <... symlink resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5132] symlink("/dev/binderfs", "./binderfs" [pid 5131] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5130] <... symlink resumed>) = 0 [pid 5129] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5132] <... symlink resumed>) = 0 [pid 5131] <... madvise resumed>) = 0 [pid 5130] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5129] <... madvise resumed>) = 0 [pid 5079] fstat(3, [pid 5132] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5131] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5130] <... madvise resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5132] <... madvise resumed>) = 0 [pid 5131] <... openat resumed>) = 3 [pid 5130] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5129] <... openat resumed>) = 3 [pid 5081] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5132] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5131] write(3, "1", 1 [pid 5130] <... openat resumed>) = 3 [pid 5129] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] <... openat resumed>) = 3 [pid 5131] <... write resumed>) = 1 [pid 5130] write(3, "1", 1 [pid 5129] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5132] write(3, "1", 1 [pid 5131] write(3, "\x32\x00", 2 [pid 5130] <... write resumed>) = 1 [pid 5129] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5079] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] <... write resumed>) = 1 [pid 5130] write(3, "\x32\x00", 2 [pid 5081] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] write(3, "\x32\x00", 2 [pid 5131] <... write resumed>) = 2 [pid 5130] <... write resumed>) = 2 [pid 5129] <... write resumed>) = 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] lstat("./7/binderfs", [pid 5132] <... write resumed>) = 2 [pid 5129] exit_group(0 [pid 5081] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5132] exit_group(0 [pid 5131] exit_group(0 [pid 5130] exit_group(0 [pid 5129] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./7/binderfs" [pid 5132] <... exit_group resumed>) = ? [pid 5081] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5131] <... exit_group resumed>) = ? [pid 5130] <... exit_group resumed>) = ? [pid 5129] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5132] +++ exited with 0 +++ [pid 5131] +++ exited with 0 +++ [pid 5130] +++ exited with 0 +++ [pid 5081] lstat("./7/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3 [pid 5081] unlink("./7/binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5081] <... unlink resumed>) = 0 [pid 5080] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./7" [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5081] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5079] mkdir("./8", 0777 [pid 5075] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] rmdir("./7" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5081] mkdir("./8", 0777 [pid 5080] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5133 attached [pid 5081] <... mkdir resumed>) = 0 [pid 5080] lstat("./8/binderfs", [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5133 [pid 5077] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5133] chdir("./8" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] unlink("./8/binderfs" [pid 5075] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] <... chdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5134 [pid 5080] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] lstat("./7/binderfs", [pid 5133] <... prctl resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5133] setpgid(0, 0 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] unlink("./7/binderfs"./strace-static-x86_64: Process 5134 attached [pid 5133] <... setpgid resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5134] chdir("./8" [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] rmdir("./8" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5134] <... chdir resumed>) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] lstat("./9/binderfs", [pid 5076] lstat("./8/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] write(3, "1000", 4 [pid 5080] mkdir("./9", 0777 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5134] <... prctl resumed>) = 0 [pid 5133] <... write resumed>) = 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] unlink("./9/binderfs" [pid 5076] unlink("./8/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5134] setpgid(0, 0 [pid 5133] close(3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... unlink resumed>) = 0 [pid 5075] rmdir("./7"./strace-static-x86_64: Process 5135 attached [pid 5134] <... setpgid resumed>) = 0 [pid 5133] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5135] chdir("./9" [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5133] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5135 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5075] mkdir("./8", 0777 [pid 5135] <... chdir resumed>) = 0 [pid 5134] <... openat resumed>) = 3 [pid 5133] <... symlink resumed>) = 0 [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] write(3, "1000", 4 [pid 5133] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached [pid 5135] <... prctl resumed>) = 0 [pid 5134] <... write resumed>) = 4 [pid 5133] <... madvise resumed>) = 0 [pid 5077] rmdir("./9" [pid 5076] <... close resumed>) = 0 [pid 5136] chdir("./8" [pid 5135] setpgid(0, 0 [pid 5134] close(3 [pid 5133] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... rmdir resumed>) = 0 [pid 5076] rmdir("./8" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5136 [pid 5136] <... chdir resumed>) = 0 [pid 5135] <... setpgid resumed>) = 0 [pid 5134] <... close resumed>) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5077] mkdir("./10", 0777 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] symlink("/dev/binderfs", "./binderfs" [pid 5133] write(3, "1", 1 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5136] <... prctl resumed>) = 0 [pid 5135] <... openat resumed>) = 3 [pid 5134] <... symlink resumed>) = 0 [pid 5133] <... write resumed>) = 1 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./9", 0777./strace-static-x86_64: Process 5137 attached [pid 5136] setpgid(0, 0 [pid 5135] write(3, "1000", 4 [pid 5134] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5133] write(3, "\x32\x00", 2 [pid 5137] chdir("./10" [pid 5136] <... setpgid resumed>) = 0 [pid 5135] <... write resumed>) = 4 [pid 5134] <... madvise resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5137 [pid 5076] <... mkdir resumed>) = 0 [pid 5134] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5134] write(3, "1", 1 [pid 5135] close(3 [pid 5134] <... write resumed>) = 1 [pid 5133] <... write resumed>) = 2 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] <... chdir resumed>) = 0 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5135] <... close resumed>) = 0 [pid 5134] write(3, "\x32\x00", 2 [pid 5133] exit_group(0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5136] <... openat resumed>) = 3 [pid 5135] symlink("/dev/binderfs", "./binderfs" [pid 5134] <... write resumed>) = 2 [pid 5133] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5138 attached [pid 5137] <... prctl resumed>) = 0 [pid 5136] write(3, "1000", 4 [pid 5135] <... symlink resumed>) = 0 [pid 5134] exit_group(0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5138 [pid 5138] chdir("./9" [pid 5137] setpgid(0, 0 [pid 5136] <... write resumed>) = 4 [pid 5135] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5134] <... exit_group resumed>) = ? [pid 5133] +++ exited with 0 +++ [pid 5138] <... chdir resumed>) = 0 [pid 5137] <... setpgid resumed>) = 0 [pid 5136] close(3 [pid 5135] <... madvise resumed>) = 0 [pid 5134] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5136] <... close resumed>) = 0 [pid 5135] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5138] <... prctl resumed>) = 0 [pid 5137] <... openat resumed>) = 3 [pid 5136] symlink("/dev/binderfs", "./binderfs" [pid 5135] <... openat resumed>) = 3 [pid 5138] setpgid(0, 0 [pid 5137] write(3, "1000", 4 [pid 5135] write(3, "1", 1 [pid 5136] <... symlink resumed>) = 0 [pid 5138] <... setpgid resumed>) = 0 [pid 5137] <... write resumed>) = 4 [pid 5135] <... write resumed>) = 1 [pid 5081] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5137] close(3 [pid 5136] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5135] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5138] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5138] <... write resumed>) = 4 [pid 5136] <... madvise resumed>) = 0 [pid 5081] fstat(3, [pid 5135] <... write resumed>) = 2 [pid 5079] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] <... close resumed>) = 0 [pid 5138] close(3 [pid 5137] symlink("/dev/binderfs", "./binderfs" [pid 5136] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5135] exit_group(0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] <... close resumed>) = 0 [pid 5137] <... symlink resumed>) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5135] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5079] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5138] symlink("/dev/binderfs", "./binderfs" [pid 5137] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5136] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5138] <... symlink resumed>) = 0 [pid 5137] <... madvise resumed>) = 0 [pid 5136] <... write resumed>) = 1 [pid 5135] +++ exited with 0 +++ [pid 5081] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5138] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5137] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5136] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5138] <... madvise resumed>) = 0 [pid 5081] lstat("./8/binderfs", [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5138] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] getdents64(3, [pid 5138] <... openat resumed>) = 3 [pid 5081] unlink("./8/binderfs" [pid 5080] <... restart_syscall resumed>) = 0 [pid 5138] write(3, "1", 1 [pid 5137] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5138] <... write resumed>) = 1 [pid 5137] write(3, "1", 1 [pid 5136] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5079] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] write(3, "\x32\x00", 2 [pid 5137] <... write resumed>) = 1 [pid 5136] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] <... write resumed>) = 2 [pid 5137] write(3, "\x32\x00", 2 [pid 5136] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./8/binderfs", [pid 5138] exit_group(0 [pid 5137] <... write resumed>) = 2 [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5138] <... exit_group resumed>) = ? [pid 5137] exit_group(0 [pid 5136] +++ exited with 0 +++ [pid 5081] rmdir("./8" [pid 5080] <... openat resumed>) = 3 [pid 5079] unlink("./8/binderfs" [pid 5138] +++ exited with 0 +++ [pid 5137] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5080] fstat(3, [pid 5079] <... unlink resumed>) = 0 [pid 5081] mkdir("./9", 0777 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5137] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5139 attached [pid 5080] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5139 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5139] chdir("./9" [pid 5080] lstat("./9/binderfs", [pid 5079] rmdir("./8" [pid 5139] <... chdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] unlink("./9/binderfs" [pid 5079] mkdir("./9", 0777 [pid 5077] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5139] <... prctl resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] setpgid(0, 0 [pid 5080] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5139] <... setpgid resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5080] close(3) = 0 [pid 5080] rmdir("./9") = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] mkdir("./10", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5140 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5140 attached [pid 5139] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./8/binderfs", ./strace-static-x86_64: Process 5141 attached [pid 5140] chdir("./9" [pid 5139] write(3, "1000", 4 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5141 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5140] <... chdir resumed>) = 0 [pid 5139] <... write resumed>) = 4 [pid 5077] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./8/binderfs" [pid 5140] <... prctl resumed>) = 0 [pid 5139] <... close resumed>) = 0 [pid 5077] lstat("./10/binderfs", [pid 5076] lstat("./9/binderfs", [pid 5140] setpgid(0, 0 [pid 5139] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5140] <... setpgid resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] <... symlink resumed>) = 0 [pid 5077] unlink("./10/binderfs" [pid 5076] unlink("./9/binderfs" [pid 5075] getdents64(3, [pid 5140] <... openat resumed>) = 3 [pid 5139] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5140] write(3, "1000", 4 [pid 5077] <... unlink resumed>) = 0 [pid 5140] <... write resumed>) = 4 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5140] close(3 [pid 5139] <... madvise resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] close(3 [pid 5140] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5139] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5140] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5140] <... symlink resumed>) = 0 [pid 5139] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] close(3 [pid 5075] rmdir("./8" [pid 5140] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5140] <... madvise resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5139] write(3, "1", 1 [pid 5077] rmdir("./10" [pid 5076] rmdir("./9" [pid 5075] mkdir("./9", 0777 [pid 5140] <... openat resumed>) = 3 [pid 5139] <... write resumed>) = 1 [pid 5140] write(3, "1", 1 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] mkdir("./11", 0777 [pid 5141] chdir("./10") = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] setpgid(0, 0) = 0 [pid 5139] write(3, "\x32\x00", 2 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] mkdir("./10", 0777 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5141] write(3, "1000", 4) = 4 [pid 5141] close(3) = 0 [pid 5141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5141] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5142 [pid 5141] <... madvise resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5143 [pid 5141] write(3, "1", 1 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5144 ./strace-static-x86_64: Process 5143 attached [pid 5143] chdir("./9") = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5142 attached [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5144 attached ) = 3 [pid 5142] chdir("./11" [pid 5143] write(3, "1000", 4 [pid 5144] chdir("./10" [pid 5143] <... write resumed>) = 4 [pid 5142] <... chdir resumed>) = 0 [pid 5143] close(3) = 0 [pid 5144] <... chdir resumed>) = 0 [pid 5143] symlink("/dev/binderfs", "./binderfs" [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] <... symlink resumed>) = 0 [pid 5140] <... write resumed>) = 1 [pid 5143] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5140] write(3, "\x32\x00", 2 [pid 5144] <... prctl resumed>) = 0 [pid 5143] <... madvise resumed>) = 0 [pid 5142] <... prctl resumed>) = 0 [pid 5141] <... write resumed>) = 1 [pid 5140] <... write resumed>) = 2 [pid 5139] <... write resumed>) = 2 [pid 5144] setpgid(0, 0 [pid 5143] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5141] write(3, "\x32\x00", 2 [pid 5140] exit_group(0 [pid 5142] setpgid(0, 0 [pid 5144] <... setpgid resumed>) = 0 [pid 5143] <... openat resumed>) = 3 [pid 5142] <... setpgid resumed>) = 0 [pid 5141] <... write resumed>) = 2 [pid 5140] <... exit_group resumed>) = ? [pid 5139] exit_group(0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] write(3, "1", 1 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] exit_group(0 [pid 5140] +++ exited with 0 +++ [pid 5139] <... exit_group resumed>) = ? [pid 5144] <... openat resumed>) = 3 [pid 5143] <... write resumed>) = 1 [pid 5141] <... exit_group resumed>) = ? [pid 5142] <... openat resumed>) = 3 [pid 5144] write(3, "1000", 4 [pid 5143] write(3, "\x32\x00", 2 [pid 5141] +++ exited with 0 +++ [pid 5139] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5142] write(3, "1000", 4 [pid 5144] <... write resumed>) = 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5143] <... write resumed>) = 2 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5144] close(3 [pid 5143] exit_group(0 [pid 5142] <... write resumed>) = 4 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5144] <... close resumed>) = 0 [pid 5143] <... exit_group resumed>) = ? [pid 5142] close(3 [pid 5144] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5143] +++ exited with 0 +++ [pid 5142] <... close resumed>) = 0 [pid 5081] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5142] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5144] <... madvise resumed>) = 0 [pid 5142] <... symlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5144] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5142] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5144] <... openat resumed>) = 3 [pid 5142] <... madvise resumed>) = 0 [pid 5081] fstat(3, [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5075] <... restart_syscall resumed>) = 0 [pid 5144] write(3, "1", 1 [pid 5142] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5144] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5144] write(3, "\x32\x00", 2 [pid 5142] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5142] write(3, "1", 1 [pid 5081] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./9/binderfs", [pid 5080] lstat("./10/binderfs", [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] unlink("./9/binderfs" [pid 5080] unlink("./10/binderfs" [pid 5144] <... write resumed>) = 2 [pid 5142] <... write resumed>) = 1 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] exit_group(0 [pid 5142] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5080] close(3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5081] rmdir("./9" [pid 5080] rmdir("./10" [pid 5142] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] lstat("./9/binderfs", [pid 5075] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5142] exit_group(0 [pid 5081] mkdir("./10", 0777 [pid 5080] mkdir("./11", 0777 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5144] +++ exited with 0 +++ [pid 5142] <... exit_group resumed>) = ? [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] unlink("./9/binderfs" [pid 5075] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached ./strace-static-x86_64: Process 5145 attached [pid 5142] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] fstat(3, [pid 5145] chdir("./10" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5145 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5146 [pid 5079] getdents64(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5146] chdir("./11" [pid 5145] <... chdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5146] <... chdir resumed>) = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] close(3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] getdents64(3, [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] <... prctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5146] <... prctl resumed>) = 0 [pid 5145] setpgid(0, 0 [pid 5079] rmdir("./9" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5146] setpgid(0, 0 [pid 5145] <... setpgid resumed>) = 0 [pid 5077] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... setpgid resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] mkdir("./10", 0777 [pid 5077] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5145] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5145] write(3, "1000", 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 5146] <... openat resumed>) = 3 [pid 5145] <... write resumed>) = 4 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./9/binderfs", [pid 5145] close(3 [pid 5077] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5145] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5147 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5075] unlink("./9/binderfs" [pid 5145] symlink("/dev/binderfs", "./binderfs" [pid 5077] lstat("./11/binderfs", [pid 5076] fstat(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5146] write(3, "1000", 4 [pid 5145] <... symlink resumed>) = 0 [pid 5077] unlink("./11/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5147 attached [pid 5146] <... write resumed>) = 4 [pid 5145] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5147] chdir("./10" [pid 5146] close(3 [pid 5145] <... madvise resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] close(3 [pid 5147] <... chdir resumed>) = 0 [pid 5146] <... close resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] symlink("/dev/binderfs", "./binderfs" [pid 5145] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5147] <... prctl resumed>) = 0 [pid 5145] write(3, "1", 1 [pid 5077] <... close resumed>) = 0 [pid 5076] lstat("./10/binderfs", [pid 5075] rmdir("./9" [pid 5147] setpgid(0, 0 [pid 5146] <... symlink resumed>) = 0 [pid 5145] <... write resumed>) = 1 [pid 5077] rmdir("./11" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5147] <... setpgid resumed>) = 0 [pid 5146] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5145] write(3, "\x32\x00", 2 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] unlink("./10/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] <... madvise resumed>) = 0 [pid 5077] mkdir("./12", 0777 [pid 5147] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5147] write(3, "1000", 4 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached [pid 5147] <... write resumed>) = 4 [pid 5146] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5145] <... write resumed>) = 2 [pid 5076] <... unlink resumed>) = 0 [pid 5075] mkdir("./10", 0777 [pid 5147] close(3 [pid 5146] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5148 [pid 5147] <... close resumed>) = 0 [pid 5145] exit_group(0 [pid 5076] getdents64(3, [pid 5147] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5147] <... symlink resumed>) = 0 [pid 5146] write(3, "1", 1 [pid 5145] <... exit_group resumed>) = ? [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5147] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5146] <... write resumed>) = 1 [pid 5147] <... madvise resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5146] write(3, "\x32\x00", 2 [pid 5145] +++ exited with 0 +++ [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5147] write(3, "1", 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5147] <... write resumed>) = 1 [pid 5146] <... write resumed>) = 2 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... close resumed>) = 0 [pid 5147] write(3, "\x32\x00", 2 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5148] chdir("./12" [pid 5147] <... write resumed>) = 2 [pid 5146] exit_group(0 [pid 5076] rmdir("./10" [pid 5148] <... chdir resumed>) = 0 [pid 5147] exit_group(0 [pid 5146] <... exit_group resumed>) = ? [pid 5147] <... exit_group resumed>) = ? [pid 5081] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5149 ./strace-static-x86_64: Process 5149 attached [pid 5081] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./11", 0777 [pid 5149] chdir("./10" [pid 5146] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5149] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... mkdir resumed>) = 0 [pid 5149] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5149] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5149] <... setpgid resumed>) = 0 [pid 5081] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5149] <... openat resumed>) = 3 [pid 5081] lstat("./10/binderfs", [pid 5149] write(3, "1000", 4 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5149] <... write resumed>) = 4 [pid 5081] unlink("./10/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5148] <... prctl resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5150 [pid 5149] close(3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5149] <... close resumed>) = 0 [pid 5148] setpgid(0, 0 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5149] symlink("/dev/binderfs", "./binderfs" [pid 5148] <... setpgid resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5150 attached [pid 5149] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5150] chdir("./11" [pid 5149] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5150] <... chdir resumed>) = 0 [pid 5149] <... madvise resumed>) = 0 [pid 5081] rmdir("./10" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5149] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5148] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5150] <... prctl resumed>) = 0 [pid 5149] <... openat resumed>) = 3 [pid 5148] write(3, "1000", 4 [pid 5081] mkdir("./11", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] setpgid(0, 0 [pid 5149] write(3, "1", 1 [pid 5148] <... write resumed>) = 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5150] <... setpgid resumed>) = 0 [pid 5149] <... write resumed>) = 1 [pid 5148] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./10/binderfs", [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] write(3, "\x32\x00", 2 [pid 5148] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] lstat("./11/binderfs", ./strace-static-x86_64: Process 5151 attached [pid 5150] <... openat resumed>) = 3 [pid 5149] <... write resumed>) = 2 [pid 5148] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5151 [pid 5079] unlink("./10/binderfs" [pid 5150] write(3, "1000", 4 [pid 5149] exit_group(0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5150] <... write resumed>) = 4 [pid 5149] <... exit_group resumed>) = ? [pid 5148] <... symlink resumed>) = 0 [pid 5151] chdir("./11" [pid 5150] close(3 [pid 5149] +++ exited with 0 +++ [pid 5148] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] unlink("./11/binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5150] <... close resumed>) = 0 [pid 5148] <... madvise resumed>) = 0 [pid 5150] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5150] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5148] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] getdents64(3, [pid 5150] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5148] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5150] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5148] write(3, "1", 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5075] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... chdir resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5148] <... write resumed>) = 1 [pid 5080] close(3 [pid 5079] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5150] write(3, "1", 1 [pid 5148] write(3, "\x32\x00", 2 [pid 5080] <... close resumed>) = 0 [pid 5079] rmdir("./10" [pid 5075] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5150] <... write resumed>) = 1 [pid 5150] write(3, "\x32\x00", 2 [pid 5075] <... openat resumed>) = 3 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... rmdir resumed>) = 0 [pid 5080] rmdir("./11" [pid 5075] fstat(3, [pid 5079] mkdir("./11", 0777 [pid 5151] <... prctl resumed>) = 0 [pid 5151] setpgid(0, 0) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5151] write(3, "1000", 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5151] <... write resumed>) = 4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5151] close(3) = 0 [pid 5080] mkdir("./12", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5151] symlink("/dev/binderfs", "./binderfs" [pid 5150] <... write resumed>) = 2 [pid 5148] <... write resumed>) = 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] <... symlink resumed>) = 0 [pid 5150] exit_group(0 [pid 5080] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5151] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5150] <... exit_group resumed>) = ? [pid 5151] <... madvise resumed>) = 0 [pid 5150] +++ exited with 0 +++ [pid 5148] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5152 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] <... openat resumed>) = 3 [pid 5075] lstat("./10/binderfs", [pid 5151] write(3, "1", 1./strace-static-x86_64: Process 5153 attached ./strace-static-x86_64: Process 5152 attached ) = 1 [pid 5148] <... exit_group resumed>) = ? [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5152] chdir("./11" [pid 5151] write(3, "\x32\x00", 2 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5153 [pid 5153] chdir("./12" [pid 5152] <... chdir resumed>) = 0 [pid 5151] <... write resumed>) = 2 [pid 5148] +++ exited with 0 +++ [pid 5076] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./10/binderfs" [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] exit_group(0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] <... prctl resumed>) = 0 [pid 5151] <... exit_group resumed>) = ? [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... unlink resumed>) = 0 [pid 5153] <... chdir resumed>) = 0 [pid 5152] setpgid(0, 0 [pid 5151] +++ exited with 0 +++ [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5152] <... setpgid resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] fstat(3, [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5153] <... prctl resumed>) = 0 [pid 5152] <... openat resumed>) = 3 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5075] close(3 [pid 5153] setpgid(0, 0 [pid 5152] write(3, "1000", 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5153] <... setpgid resumed>) = 0 [pid 5152] <... write resumed>) = 4 [pid 5077] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... close resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] close(3 [pid 5081] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./10" [pid 5153] <... openat resumed>) = 3 [pid 5152] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] symlink("/dev/binderfs", "./binderfs" [pid 5081] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5153] write(3, "1000", 4 [pid 5152] <... symlink resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] lstat("./11/binderfs", [pid 5075] <... rmdir resumed>) = 0 [pid 5153] <... write resumed>) = 4 [pid 5152] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5153] close(3 [pid 5152] <... madvise resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./11/binderfs" [pid 5075] mkdir("./11", 0777 [pid 5153] <... close resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] lstat("./12/binderfs", [pid 5076] <... unlink resumed>) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs" [pid 5152] write(3, "1", 1 [pid 5081] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5153] <... symlink resumed>) = 0 [pid 5152] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./12/binderfs" [pid 5076] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5152] write(3, "\x32\x00", 2 [pid 5081] lstat("./11/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5154 attached [pid 5153] <... madvise resumed>) = 0 [pid 5152] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] close(3 [pid 5154] chdir("./11" [pid 5153] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5152] exit_group(0 [pid 5081] unlink("./11/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5154] <... chdir resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5152] <... exit_group resumed>) = ? [pid 5077] close(3 [pid 5076] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5154 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5153] write(3, "1", 1 [pid 5152] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] rmdir("./11" [pid 5154] <... prctl resumed>) = 0 [pid 5153] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] rmdir("./12" [pid 5154] setpgid(0, 0 [pid 5153] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] mkdir("./13", 0777 [pid 5153] <... write resumed>) = 2 [pid 5081] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] mkdir("./12", 0777 [pid 5154] <... setpgid resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] exit_group(0 [pid 5081] rmdir("./11" [pid 5076] <... mkdir resumed>) = 0 [pid 5153] <... exit_group resumed>) = ? [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5155 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./12", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5155 attached [pid 5081] <... mkdir resumed>) = 0 [pid 5079] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] chdir("./13") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5156 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] write(3, "1000", 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5157 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5155] <... write resumed>) = 4 [pid 5079] lstat("./11/binderfs", [pid 5155] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5156 attached [pid 5155] <... close resumed>) = 0 [pid 5079] unlink("./11/binderfs" [pid 5156] chdir("./12" [pid 5155] symlink("/dev/binderfs", "./binderfs" [pid 5153] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5156] <... chdir resumed>) = 0 [pid 5155] <... symlink resumed>) = 0 [pid 5154] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5154] write(3, "1000", 4 [pid 5080] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3./strace-static-x86_64: Process 5157 attached [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5155] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5154] <... write resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5157] chdir("./12" [pid 5156] <... prctl resumed>) = 0 [pid 5155] <... madvise resumed>) = 0 [pid 5154] close(3 [pid 5080] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5157] <... chdir resumed>) = 0 [pid 5156] setpgid(0, 0 [pid 5155] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5079] rmdir("./11" [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] <... setpgid resumed>) = 0 [pid 5155] <... openat resumed>) = 3 [pid 5154] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5157] <... prctl resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] write(3, "1", 1 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5157] setpgid(0, 0 [pid 5156] <... openat resumed>) = 3 [pid 5155] <... write resumed>) = 1 [pid 5154] symlink("/dev/binderfs", "./binderfs" [pid 5080] getdents64(3, [pid 5079] mkdir("./12", 0777 [pid 5157] <... setpgid resumed>) = 0 [pid 5156] write(3, "1000", 4 [pid 5155] write(3, "\x32\x00", 2 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] <... write resumed>) = 4 [pid 5155] <... write resumed>) = 2 [pid 5154] <... symlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... mkdir resumed>) = 0 [pid 5157] <... openat resumed>) = 3 [pid 5156] close(3 [pid 5155] exit_group(0 [pid 5154] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5157] write(3, "1000", 4 [pid 5156] <... close resumed>) = 0 [pid 5155] <... exit_group resumed>) = ? [pid 5157] <... write resumed>) = 4 [pid 5156] symlink("/dev/binderfs", "./binderfs" [pid 5155] +++ exited with 0 +++ [pid 5154] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5158 attached [pid 5157] close(3 [pid 5156] <... symlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5154] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5157] <... close resumed>) = 0 [pid 5156] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] lstat("./12/binderfs", [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5158 [pid 5157] symlink("/dev/binderfs", "./binderfs" [pid 5156] <... madvise resumed>) = 0 [pid 5154] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5157] <... symlink resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5154] write(3, "1", 1 [pid 5080] unlink("./12/binderfs" [pid 5077] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5156] <... openat resumed>) = 3 [pid 5154] <... write resumed>) = 1 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] chdir("./12" [pid 5157] <... madvise resumed>) = 0 [pid 5156] write(3, "1", 1 [pid 5154] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5157] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5156] <... write resumed>) = 1 [pid 5077] <... openat resumed>) = 3 [pid 5157] <... openat resumed>) = 3 [pid 5156] write(3, "\x32\x00", 2 [pid 5077] fstat(3, [pid 5157] write(3, "1", 1 [pid 5156] <... write resumed>) = 2 [pid 5154] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5158] <... chdir resumed>) = 0 [pid 5157] <... write resumed>) = 1 [pid 5156] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] write(3, "\x32\x00", 2 [pid 5156] <... exit_group resumed>) = ? [pid 5154] exit_group(0 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5158] <... prctl resumed>) = 0 [pid 5157] <... write resumed>) = 2 [pid 5156] +++ exited with 0 +++ [pid 5154] <... exit_group resumed>) = ? [pid 5080] <... close resumed>) = 0 [pid 5077] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] setpgid(0, 0 [pid 5157] exit_group(0 [pid 5080] rmdir("./12" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5158] <... setpgid resumed>) = 0 [pid 5157] <... exit_group resumed>) = ? [pid 5077] lstat("./13/binderfs", [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5157] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] mkdir("./13", 0777 [pid 5077] unlink("./13/binderfs" [pid 5076] <... restart_syscall resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5158] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3) = 0 [pid 5077] rmdir("./13") = 0 [pid 5077] mkdir("./14", 0777 [pid 5076] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] write(3, "1000", 4 [pid 5154] +++ exited with 0 +++ [pid 5077] <... mkdir resumed>) = 0 [pid 5158] <... write resumed>) = 4 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5159 attached [pid 5158] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5159 [pid 5081] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5158] <... close resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5160 [pid 5158] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5158] <... symlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(3, [pid 5081] <... openat resumed>) = 3 [pid 5159] chdir("./13" [pid 5158] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5159] <... chdir resumed>) = 0 [pid 5158] <... madvise resumed>) = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5159] <... prctl resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5159] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5159] <... setpgid resumed>) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... openat resumed>) = 3 [pid 5159] <... openat resumed>) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5158] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5159] close(3 [pid 5158] write(3, "1", 1 [pid 5081] lstat("./12/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5159] <... close resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5160 attached [pid 5159] symlink("/dev/binderfs", "./binderfs" [pid 5158] <... write resumed>) = 1 [pid 5081] unlink("./12/binderfs" [pid 5076] lstat("./12/binderfs", [pid 5075] getdents64(3, [pid 5159] <... symlink resumed>) = 0 [pid 5159] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... unlink resumed>) = 0 [pid 5159] <... madvise resumed>) = 0 [pid 5158] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5159] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5159] <... openat resumed>) = 3 [pid 5159] write(3, "1", 1 [pid 5081] close(3 [pid 5076] unlink("./12/binderfs" [pid 5075] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] chdir("./14" [pid 5081] <... close resumed>) = 0 [pid 5160] <... chdir resumed>) = 0 [pid 5081] rmdir("./12" [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5160] setpgid(0, 0) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./13", 0777 [pid 5076] getdents64(3, [pid 5075] lstat("./11/binderfs", [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5160] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5160] write(3, "1000", 4 [pid 5075] unlink("./11/binderfs" [pid 5076] close(3 [pid 5160] <... write resumed>) = 4 [pid 5160] close(3) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5160] symlink("/dev/binderfs", "./binderfs" [pid 5076] rmdir("./12" [pid 5160] <... symlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5160] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5161 [pid 5160] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] mkdir("./13", 0777 [pid 5075] close(3 [pid 5160] <... openat resumed>) = 3 [pid 5160] write(3, "1", 1./strace-static-x86_64: Process 5161 attached [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./11" [pid 5161] chdir("./13") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5075] mkdir("./12", 0777 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5161] write(3, "1000", 4) = 4 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5162 [pid 5161] <... madvise resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5163 [pid 5161] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 ./strace-static-x86_64: Process 5162 attached [pid 5161] write(3, "1", 1 [pid 5162] chdir("./13") = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5162] setpgid(0, 0) = 0 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5162] write(3, "1000", 4./strace-static-x86_64: Process 5163 attached ) = 4 [pid 5162] close(3) = 0 [pid 5162] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5162] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5163] chdir("./12" [pid 5162] <... madvise resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5163] <... chdir resumed>) = 0 [pid 5162] <... openat resumed>) = 3 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5162] write(3, "1", 1 [pid 5163] <... prctl resumed>) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] <... write resumed>) = 1 [pid 5160] <... write resumed>) = 1 [pid 5159] <... write resumed>) = 1 [pid 5158] <... write resumed>) = 2 [pid 5163] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5161] write(3, "\x32\x00", 2 [pid 5160] write(3, "\x32\x00", 2 [pid 5159] write(3, "\x32\x00", 2 [pid 5158] exit_group(0 [pid 5163] <... madvise resumed>) = 0 [pid 5162] <... write resumed>) = 1 [pid 5158] <... exit_group resumed>) = ? [pid 5163] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5158] +++ exited with 0 +++ [pid 5163] <... openat resumed>) = 3 [pid 5163] write(3, "1", 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5163] <... write resumed>) = 1 [pid 5162] write(3, "\x32\x00", 2 [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5163] write(3, "\x32\x00", 2 [pid 5079] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5161] <... write resumed>) = 2 [pid 5079] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5161] exit_group(0 [pid 5079] <... openat resumed>) = 3 [pid 5161] <... exit_group resumed>) = ? [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5161] +++ exited with 0 +++ [pid 5159] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5163] <... write resumed>) = 2 [pid 5162] <... write resumed>) = 2 [pid 5160] <... write resumed>) = 2 [pid 5159] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5163] exit_group(0 [pid 5162] exit_group(0 [pid 5160] exit_group(0 [pid 5159] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... exit_group resumed>) = ? [pid 5162] <... exit_group resumed>) = ? [pid 5160] <... exit_group resumed>) = ? [pid 5159] +++ exited with 0 +++ [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5163] +++ exited with 0 +++ [pid 5162] +++ exited with 0 +++ [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] lstat("./12/binderfs", [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] unlink("./12/binderfs" [pid 5080] <... restart_syscall resumed>) = 0 [pid 5081] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5160] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5075] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5081] fstat(3, [pid 5080] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3 [pid 5080] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5079] rmdir("./12" [pid 5076] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5080] fstat(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5079] mkdir("./13", 0777 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5075] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] lstat("./13/binderfs", [pid 5080] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5075] lstat("./12/binderfs", [pid 5081] unlink("./13/binderfs" [pid 5080] lstat("./13/binderfs", [pid 5077] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] unlink("./13/binderfs" [pid 5077] lstat("./14/binderfs", [pid 5075] unlink("./12/binderfs" [pid 5076] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] getdents64(3, [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] getdents64(3, [pid 5077] unlink("./14/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5164 attached [pid 5081] close(3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./13/binderfs", [pid 5075] getdents64(3, [pid 5164] chdir("./13" [pid 5081] <... close resumed>) = 0 [pid 5080] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5164 [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5164] <... chdir resumed>) = 0 [pid 5081] rmdir("./13" [pid 5080] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5076] unlink("./13/binderfs" [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./14" [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./13" [pid 5081] mkdir("./14", 0777 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5077] mkdir("./15", 0777 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5081] <... mkdir resumed>) = 0 [pid 5080] mkdir("./14", 0777 [pid 5075] rmdir("./12" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5165 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5165 attached [pid 5080] <... mkdir resumed>) = 0 [pid 5165] chdir("./15") = 0 [pid 5076] close(3 [pid 5075] <... rmdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5075] mkdir("./13", 0777 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5076] rmdir("./13" [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5166 [pid 5076] mkdir("./14", 0777 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5167 [pid 5165] <... close resumed>) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5165] <... symlink resumed>) = 0 [pid 5165] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached [pid 5166] chdir("./14" [pid 5165] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5168 [pid 5166] <... chdir resumed>) = 0 [pid 5165] <... openat resumed>) = 3 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5169 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5168 attached ./strace-static-x86_64: Process 5167 attached [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] write(3, "1", 1 [pid 5168] chdir("./13" [pid 5167] chdir("./14" [pid 5166] <... prctl resumed>) = 0 [pid 5165] <... write resumed>) = 1 [pid 5164] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5169 attached [pid 5167] <... chdir resumed>) = 0 [pid 5166] setpgid(0, 0 [pid 5165] write(3, "\x32\x00", 2 [pid 5164] setpgid(0, 0 [pid 5169] chdir("./14" [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5166] <... setpgid resumed>) = 0 [pid 5169] <... chdir resumed>) = 0 [pid 5168] <... chdir resumed>) = 0 [pid 5167] <... prctl resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] <... write resumed>) = 2 [pid 5164] <... setpgid resumed>) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] setpgid(0, 0 [pid 5166] <... openat resumed>) = 3 [pid 5165] exit_group(0 [pid 5169] <... prctl resumed>) = 0 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] <... setpgid resumed>) = 0 [pid 5166] write(3, "1000", 4 [pid 5165] <... exit_group resumed>) = ? [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5169] setpgid(0, 0 [pid 5168] <... prctl resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] <... write resumed>) = 4 [pid 5165] +++ exited with 0 +++ [pid 5164] <... openat resumed>) = 3 [pid 5169] <... setpgid resumed>) = 0 [pid 5168] setpgid(0, 0 [pid 5167] <... openat resumed>) = 3 [pid 5166] close(3 [pid 5164] write(3, "1000", 4 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] <... setpgid resumed>) = 0 [pid 5167] write(3, "1000", 4 [pid 5166] <... close resumed>) = 0 [pid 5164] <... write resumed>) = 4 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5169] <... openat resumed>) = 3 [pid 5167] <... write resumed>) = 4 [pid 5166] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... restart_syscall resumed>) = 0 [pid 5164] close(3 [pid 5169] write(3, "1000", 4 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] close(3 [pid 5166] <... symlink resumed>) = 0 [pid 5164] <... close resumed>) = 0 [pid 5169] <... write resumed>) = 4 [pid 5168] <... openat resumed>) = 3 [pid 5167] <... close resumed>) = 0 [pid 5166] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 5169] close(3 [pid 5168] write(3, "1000", 4 [pid 5167] symlink("/dev/binderfs", "./binderfs" [pid 5166] <... madvise resumed>) = 0 [pid 5077] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... close resumed>) = 0 [pid 5168] <... write resumed>) = 4 [pid 5167] <... symlink resumed>) = 0 [pid 5166] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5164] <... symlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] symlink("/dev/binderfs", "./binderfs" [pid 5168] close(3 [pid 5167] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5166] <... openat resumed>) = 3 [pid 5164] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5169] <... symlink resumed>) = 0 [pid 5168] <... close resumed>) = 0 [pid 5167] <... madvise resumed>) = 0 [pid 5166] write(3, "1", 1 [pid 5164] <... madvise resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5169] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5168] symlink("/dev/binderfs", "./binderfs" [pid 5167] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5166] <... write resumed>) = 1 [pid 5164] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] fstat(3, [pid 5169] <... madvise resumed>) = 0 [pid 5168] <... symlink resumed>) = 0 [pid 5167] <... openat resumed>) = 3 [pid 5166] write(3, "\x32\x00", 2 [pid 5164] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5169] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5168] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5167] write(3, "1", 1 [pid 5166] <... write resumed>) = 2 [pid 5164] write(3, "1", 1 [pid 5077] getdents64(3, [pid 5169] <... openat resumed>) = 3 [pid 5168] <... madvise resumed>) = 0 [pid 5167] <... write resumed>) = 1 [pid 5166] exit_group(0 [pid 5164] <... write resumed>) = 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5169] write(3, "1", 1 [pid 5168] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5167] write(3, "\x32\x00", 2 [pid 5166] <... exit_group resumed>) = ? [pid 5164] write(3, "\x32\x00", 2 [pid 5077] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... write resumed>) = 1 [pid 5168] <... openat resumed>) = 3 [pid 5167] <... write resumed>) = 2 [pid 5166] +++ exited with 0 +++ [pid 5164] <... write resumed>) = 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] write(3, "\x32\x00", 2 [pid 5168] write(3, "1", 1 [pid 5164] exit_group(0 [pid 5077] lstat("./15/binderfs", [pid 5169] <... write resumed>) = 2 [pid 5168] <... write resumed>) = 1 [pid 5167] exit_group(0 [pid 5164] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5169] exit_group(0 [pid 5168] write(3, "\x32\x00", 2 [pid 5167] <... exit_group resumed>) = ? [pid 5077] unlink("./15/binderfs" [pid 5169] <... exit_group resumed>) = ? [pid 5167] +++ exited with 0 +++ [pid 5164] +++ exited with 0 +++ [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... unlink resumed>) = 0 [pid 5169] +++ exited with 0 +++ [pid 5168] <... write resumed>) = 2 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] close(3 [pid 5081] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... close resumed>) = 0 [pid 5168] exit_group(0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./15" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5168] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5077] mkdir("./16", 0777 [pid 5081] fstat(3, [pid 5080] fstat(3, [pid 5079] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... mkdir resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 3 [pid 5168] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5170 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5170 attached [pid 5081] lstat("./14/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5170] chdir("./16" [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] lstat("./14/binderfs", [pid 5079] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5170] <... chdir resumed>) = 0 [pid 5081] unlink("./14/binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... unlink resumed>) = 0 [pid 5170] <... prctl resumed>) = 0 [pid 5079] lstat("./13/binderfs", [pid 5081] getdents64(3, [pid 5080] unlink("./14/binderfs" [pid 5076] fstat(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5170] setpgid(0, 0 [pid 5080] <... unlink resumed>) = 0 [pid 5170] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] unlink("./13/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5170] <... openat resumed>) = 3 [pid 5081] rmdir("./14" [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5075] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5170] write(3, "1000", 4 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5170] <... write resumed>) = 4 [pid 5170] close(3 [pid 5081] <... rmdir resumed>) = 0 [pid 5170] <... close resumed>) = 0 [pid 5081] mkdir("./15", 0777 [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5170] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] close(3 [pid 5080] rmdir("./14" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5170] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] <... madvise resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] lstat("./14/binderfs", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5170] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... rmdir resumed>) = 0 [pid 5079] rmdir("./13" [pid 5170] <... openat resumed>) = 3 [pid 5170] write(3, "1", 1) = 1 [pid 5080] mkdir("./15", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5170] write(3, "\x32\x00", 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5171 ./strace-static-x86_64: Process 5171 attached [pid 5170] <... write resumed>) = 2 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] mkdir("./14", 0777 [pid 5076] unlink("./14/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5170] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] <... exit_group resumed>) = ? [pid 5170] +++ exited with 0 +++ [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5171] chdir("./15" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5171] <... chdir resumed>) = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5077] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5172 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] lstat("./13/binderfs", ./strace-static-x86_64: Process 5173 attached [pid 5171] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5173 [pid 5077] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3./strace-static-x86_64: Process 5172 attached [pid 5171] write(3, "1000", 4 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5172] chdir("./15" [pid 5171] <... write resumed>) = 4 [pid 5077] fstat(3, [pid 5076] <... close resumed>) = 0 [pid 5075] unlink("./13/binderfs" [pid 5172] <... chdir resumed>) = 0 [pid 5171] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] rmdir("./14" [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5171] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5172] <... prctl resumed>) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5172] setpgid(0, 0 [pid 5171] <... symlink resumed>) = 0 [pid 5077] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5172] <... setpgid resumed>) = 0 [pid 5171] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./15", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5173] chdir("./14" [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] <... madvise resumed>) = 0 [pid 5077] lstat("./16/binderfs", [pid 5172] <... openat resumed>) = 3 [pid 5171] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5173] <... chdir resumed>) = 0 [pid 5172] write(3, "1000", 4 [pid 5171] <... openat resumed>) = 3 [pid 5077] unlink("./16/binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] <... write resumed>) = 4 [pid 5171] write(3, "1", 1 [pid 5077] <... unlink resumed>) = 0 [pid 5172] close(3 [pid 5171] <... write resumed>) = 1 [pid 5077] getdents64(3, [pid 5172] <... close resumed>) = 0 [pid 5171] write(3, "\x32\x00", 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5173] <... prctl resumed>) = 0 [pid 5172] symlink("/dev/binderfs", "./binderfs" [pid 5171] <... write resumed>) = 2 [pid 5077] close(3 [pid 5075] rmdir("./13" [pid 5173] setpgid(0, 0 [pid 5172] <... symlink resumed>) = 0 [pid 5171] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5174 [pid 5172] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5171] <... exit_group resumed>) = ? [pid 5077] rmdir("./16"./strace-static-x86_64: Process 5174 attached [pid 5173] <... setpgid resumed>) = 0 [pid 5172] <... madvise resumed>) = 0 [pid 5171] +++ exited with 0 +++ [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5174] chdir("./15" [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5172] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] mkdir("./17", 0777 [pid 5075] mkdir("./14", 0777 [pid 5174] <... chdir resumed>) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5172] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] write(3, "1", 1 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached [pid 5174] <... prctl resumed>) = 0 [pid 5173] write(3, "1000", 4 [pid 5172] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5174] setpgid(0, 0 [pid 5173] <... write resumed>) = 4 [pid 5172] write(3, "\x32\x00", 2 [pid 5081] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5175 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5175] chdir("./17" [pid 5174] <... setpgid resumed>) = 0 [pid 5173] close(3 [pid 5172] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5176 attached [pid 5175] <... chdir resumed>) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5173] <... close resumed>) = 0 [pid 5172] exit_group(0 [pid 5081] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5176] chdir("./14" [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5174] <... openat resumed>) = 3 [pid 5173] symlink("/dev/binderfs", "./binderfs" [pid 5172] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5176 [pid 5176] <... chdir resumed>) = 0 [pid 5175] <... prctl resumed>) = 0 [pid 5174] write(3, "1000", 4) = 4 [pid 5173] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5174] close(3) = 0 [pid 5172] +++ exited with 0 +++ [pid 5173] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5175] setpgid(0, 0 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5174] symlink("/dev/binderfs", "./binderfs" [pid 5173] <... madvise resumed>) = 0 [pid 5175] <... setpgid resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5176] <... prctl resumed>) = 0 [pid 5174] <... symlink resumed>) = 0 [pid 5173] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5174] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... restart_syscall resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5174] <... madvise resumed>) = 0 [pid 5173] <... openat resumed>) = 3 [pid 5081] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] <... openat resumed>) = 3 [pid 5174] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5175] write(3, "1000", 4 [pid 5174] <... openat resumed>) = 3 [pid 5173] write(3, "1", 1 [pid 5081] lstat("./15/binderfs", [pid 5176] setpgid(0, 0 [pid 5175] <... write resumed>) = 4 [pid 5174] write(3, "1", 1 [pid 5173] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] close(3 [pid 5174] <... write resumed>) = 1 [pid 5173] write(3, "\x32\x00", 2 [pid 5081] unlink("./15/binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5175] <... close resumed>) = 0 [pid 5174] write(3, "\x32\x00", 2 [pid 5176] <... setpgid resumed>) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] <... symlink resumed>) = 0 [pid 5174] <... write resumed>) = 2 [pid 5173] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5176] <... openat resumed>) = 3 [pid 5175] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5174] exit_group(0 [pid 5173] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5174] <... exit_group resumed>) = ? [pid 5173] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5080] fstat(3, [pid 5176] write(3, "1000", 4 [pid 5175] <... madvise resumed>) = 0 [pid 5174] +++ exited with 0 +++ [pid 5173] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5175] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] rmdir("./15" [pid 5080] getdents64(3, [pid 5081] <... rmdir resumed>) = 0 [pid 5176] <... write resumed>) = 4 [pid 5175] <... openat resumed>) = 3 [pid 5081] mkdir("./16", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] close(3 [pid 5175] write(3, "1", 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5176] <... close resumed>) = 0 [pid 5176] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5176] <... symlink resumed>) = 0 [pid 5175] <... write resumed>) = 1 [pid 5080] lstat("./15/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5177 attached [pid 5176] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5175] write(3, "\x32\x00", 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5176] <... madvise resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5176] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5177 [pid 5080] unlink("./15/binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5080] <... unlink resumed>) = 0 [pid 5079] fstat(3, [pid 5080] getdents64(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5176] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5177] chdir("./16" [pid 5176] write(3, "\x32\x00", 2 [pid 5175] <... write resumed>) = 2 [pid 5080] close(3 [pid 5177] <... chdir resumed>) = 0 [pid 5176] <... write resumed>) = 2 [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5175] exit_group(0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] exit_group(0 [pid 5175] <... exit_group resumed>) = ? [pid 5080] rmdir("./15" [pid 5079] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... prctl resumed>) = 0 [pid 5176] <... exit_group resumed>) = ? [pid 5076] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] mkdir("./16", 0777 [pid 5079] lstat("./14/binderfs", [pid 5076] lstat("./15/binderfs", [pid 5177] setpgid(0, 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5177] <... setpgid resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] unlink("./14/binderfs" [pid 5076] unlink("./15/binderfs" [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5177] write(3, "1000", 4 [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5177] <... write resumed>) = 4 [pid 5175] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5178 attached [pid 5177] close(3 [pid 5176] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5178 [pid 5079] close(3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] close(3 [pid 5178] chdir("./16" [pid 5177] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... close resumed>) = 0 [pid 5178] <... chdir resumed>) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs" [pid 5079] rmdir("./14" [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... symlink resumed>) = 0 [pid 5076] rmdir("./15" [pid 5178] <... prctl resumed>) = 0 [pid 5177] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... rmdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5178] setpgid(0, 0 [pid 5177] <... madvise resumed>) = 0 [pid 5079] mkdir("./15", 0777 [pid 5077] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5178] <... setpgid resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... openat resumed>) = 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./16", 0777 [pid 5178] <... openat resumed>) = 3 [pid 5177] write(3, "1", 1 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 3 [pid 5177] <... write resumed>) = 1 [pid 5077] fstat(3, [pid 5177] write(3, "\x32\x00", 2 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./17/binderfs", [pid 5075] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./17/binderfs") = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5179 [pid 5077] getdents64(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5177] <... write resumed>) = 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5177] exit_group(0 [pid 5077] close(3 [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5179 attached [pid 5177] <... exit_group resumed>) = ? [pid 5077] <... close resumed>) = 0 [pid 5075] fstat(3, [pid 5179] chdir("./15" [pid 5178] write(3, "1000", 4 [pid 5177] +++ exited with 0 +++ [pid 5077] rmdir("./17" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5180 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5179] <... chdir resumed>) = 0 [pid 5178] <... write resumed>) = 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... rmdir resumed>) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] close(3 [pid 5077] mkdir("./18", 0777 [pid 5075] getdents64(3, [pid 5179] <... prctl resumed>) = 0 [pid 5178] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5180 attached [pid 5179] setpgid(0, 0 [pid 5178] symlink("/dev/binderfs", "./binderfs" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5181 attached [pid 5180] chdir("./16" [pid 5179] <... setpgid resumed>) = 0 [pid 5178] <... symlink resumed>) = 0 [pid 5075] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] <... chdir resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5181 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... prctl resumed>) = 0 [pid 5179] write(3, "1000", 4 [pid 5178] <... madvise resumed>) = 0 [pid 5081] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./14/binderfs", [pid 5180] setpgid(0, 0 [pid 5179] <... write resumed>) = 4 [pid 5178] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5180] <... setpgid resumed>) = 0 [pid 5179] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5179] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5178] write(3, "1", 1 [pid 5075] unlink("./14/binderfs" [pid 5180] <... openat resumed>) = 3 [pid 5179] symlink("/dev/binderfs", "./binderfs" [pid 5178] <... write resumed>) = 1 [pid 5081] <... openat resumed>) = 3 [pid 5180] write(3, "1000", 4 [pid 5179] <... symlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5180] <... write resumed>) = 4 [pid 5179] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] getdents64(3, [pid 5180] close(3 [pid 5179] <... madvise resumed>) = 0 [pid 5178] write(3, "\x32\x00", 2 [pid 5081] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5180] <... close resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5180] symlink("/dev/binderfs", "./binderfs" [pid 5179] <... openat resumed>) = 3 [pid 5180] <... symlink resumed>) = 0 [pid 5179] write(3, "1", 1 [pid 5180] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5179] <... write resumed>) = 1 [pid 5178] <... write resumed>) = 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] close(3 [pid 5181] chdir("./18" [pid 5180] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5179] write(3, "\x32\x00", 2 [pid 5178] exit_group(0 [pid 5081] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5181] <... chdir resumed>) = 0 [pid 5180] <... openat resumed>) = 3 [pid 5179] <... write resumed>) = 2 [pid 5178] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5180] write(3, "1", 1 [pid 5179] exit_group(0 [pid 5178] +++ exited with 0 +++ [pid 5081] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./14" [pid 5181] <... prctl resumed>) = 0 [pid 5180] <... write resumed>) = 1 [pid 5179] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5181] setpgid(0, 0 [pid 5180] write(3, "\x32\x00", 2 [pid 5179] +++ exited with 0 +++ [pid 5081] lstat("./16/binderfs", [pid 5075] <... rmdir resumed>) = 0 [pid 5181] <... setpgid resumed>) = 0 [pid 5180] <... write resumed>) = 2 [pid 5180] exit_group(0) = ? [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] mkdir("./15", 0777 [pid 5081] unlink("./16/binderfs" [pid 5181] <... openat resumed>) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5181] write(3, "1000", 4 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5181] <... write resumed>) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5080] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5181] close(3 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] <... close resumed>) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5182 attached [pid 5181] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] chdir("./15" [pid 5181] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5076] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5182 [pid 5080] <... openat resumed>) = 3 [pid 5182] <... chdir resumed>) = 0 [pid 5181] <... madvise resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] rmdir("./16" [pid 5080] fstat(3, [pid 5079] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(3, [pid 5182] <... prctl resumed>) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5080] getdents64(3, [pid 5076] getdents64(3, [pid 5081] mkdir("./17", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5181] write(3, "1", 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5181] <... write resumed>) = 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5182] setpgid(0, 0) = 0 [pid 5080] lstat("./16/binderfs", [pid 5181] write(3, "\x32\x00", 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] <... openat resumed>) = 3 [pid 5182] write(3, "1000", 4 [pid 5181] <... write resumed>) = 2 [pid 5080] unlink("./16/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5182] <... write resumed>) = 4 [pid 5079] lstat("./15/binderfs", [pid 5182] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./16/binderfs", [pid 5080] getdents64(3, [pid 5079] unlink("./15/binderfs"./strace-static-x86_64: Process 5183 attached [pid 5182] <... close resumed>) = 0 [pid 5181] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5183 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5182] symlink("/dev/binderfs", "./binderfs" [pid 5181] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5079] <... unlink resumed>) = 0 [pid 5076] unlink("./16/binderfs" [pid 5182] <... symlink resumed>) = 0 [pid 5182] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5182] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5181] +++ exited with 0 +++ [pid 5182] write(3, "1", 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... unlink resumed>) = 0 [pid 5183] chdir("./17" [pid 5182] <... write resumed>) = 1 [pid 5080] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] getdents64(3, [pid 5182] write(3, "\x32\x00", 2 [pid 5080] rmdir("./16" [pid 5077] <... restart_syscall resumed>) = 0 [pid 5183] <... chdir resumed>) = 0 [pid 5182] <... write resumed>) = 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5182] exit_group(0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] close(3 [pid 5076] close(3 [pid 5182] <... exit_group resumed>) = ? [pid 5080] mkdir("./17", 0777 [pid 5079] <... close resumed>) = 0 [pid 5077] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5182] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... mkdir resumed>) = 0 [pid 5079] rmdir("./15" [pid 5183] <... prctl resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] rmdir("./16" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./16", 0777 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./18/binderfs") = 0 [pid 5076] mkdir("./17", 0777 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] rmdir("./18" [pid 5183] setpgid(0, 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5183] <... setpgid resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5184 [pid 5077] mkdir("./19", 0777) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5185 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5186 ./strace-static-x86_64: Process 5184 attached [pid 5184] chdir("./17" [pid 5075] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5187 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] <... chdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5185 attached [pid 5184] <... prctl resumed>) = 0 [pid 5183] write(3, "1000", 4 [pid 5075] <... openat resumed>) = 3 [pid 5185] chdir("./16" [pid 5184] setpgid(0, 0 [pid 5183] <... write resumed>) = 4 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5187 attached [pid 5185] <... chdir resumed>) = 0 [pid 5184] <... setpgid resumed>) = 0 [pid 5183] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5186 attached [pid 5187] chdir("./17" [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5187] <... chdir resumed>) = 0 [pid 5185] <... prctl resumed>) = 0 [pid 5184] <... openat resumed>) = 3 [pid 5183] symlink("/dev/binderfs", "./binderfs" [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] chdir("./19" [pid 5185] setpgid(0, 0 [pid 5184] write(3, "1000", 4 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5187] <... prctl resumed>) = 0 [pid 5185] <... setpgid resumed>) = 0 [pid 5184] <... write resumed>) = 4 [pid 5183] <... symlink resumed>) = 0 [pid 5075] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] setpgid(0, 0 [pid 5186] <... chdir resumed>) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] close(3 [pid 5183] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] <... setpgid resumed>) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5185] <... openat resumed>) = 3 [pid 5184] <... close resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] write(3, "1000", 4 [pid 5184] symlink("/dev/binderfs", "./binderfs" [pid 5183] <... madvise resumed>) = 0 [pid 5075] lstat("./15/binderfs", [pid 5187] <... openat resumed>) = 3 [pid 5186] <... prctl resumed>) = 0 [pid 5185] <... write resumed>) = 4 [pid 5184] <... symlink resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5187] write(3, "1000", 4 [pid 5186] setpgid(0, 0 [pid 5185] close(3 [pid 5184] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5183] <... openat resumed>) = 3 [pid 5075] unlink("./15/binderfs" [pid 5187] <... write resumed>) = 4 [pid 5186] <... setpgid resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5184] <... madvise resumed>) = 0 [pid 5183] write(3, "1", 1 [pid 5187] close(3 [pid 5185] symlink("/dev/binderfs", "./binderfs" [pid 5184] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... unlink resumed>) = 0 [pid 5187] <... close resumed>) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] <... symlink resumed>) = 0 [pid 5184] <... openat resumed>) = 3 [pid 5183] <... write resumed>) = 1 [pid 5075] getdents64(3, [pid 5187] symlink("/dev/binderfs", "./binderfs" [pid 5186] <... openat resumed>) = 3 [pid 5185] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5184] write(3, "1", 1 [pid 5183] write(3, "\x32\x00", 2 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5187] <... symlink resumed>) = 0 [pid 5186] write(3, "1000", 4 [pid 5185] <... madvise resumed>) = 0 [pid 5184] <... write resumed>) = 1 [pid 5187] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5185] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5184] write(3, "\x32\x00", 2 [pid 5187] <... madvise resumed>) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5187] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5186] <... write resumed>) = 4 [pid 5185] write(3, "1", 1 [pid 5187] <... openat resumed>) = 3 [pid 5186] close(3 [pid 5185] <... write resumed>) = 1 [pid 5184] <... write resumed>) = 2 [pid 5183] <... write resumed>) = 2 [pid 5075] <... close resumed>) = 0 [pid 5187] write(3, "1", 1 [pid 5186] <... close resumed>) = 0 [pid 5185] write(3, "\x32\x00", 2 [pid 5184] exit_group(0 [pid 5075] rmdir("./15" [pid 5187] <... write resumed>) = 1 [pid 5186] symlink("/dev/binderfs", "./binderfs" [pid 5183] exit_group(0 [pid 5186] <... symlink resumed>) = 0 [pid 5183] <... exit_group resumed>) = ? [pid 5186] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5183] +++ exited with 0 +++ [pid 5186] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5187] write(3, "\x32\x00", 2 [pid 5186] <... openat resumed>) = 3 [pid 5184] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... rmdir resumed>) = 0 [pid 5186] write(3, "1", 1 [pid 5081] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./16", 0777 [pid 5184] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... mkdir resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5187] <... write resumed>) = 2 [pid 5186] <... write resumed>) = 1 [pid 5187] exit_group(0 [pid 5186] write(3, "\x32\x00", 2 [pid 5081] fstat(3, [pid 5080] <... restart_syscall resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5187] <... exit_group resumed>) = ? [pid 5186] <... write resumed>) = 2 [pid 5185] <... write resumed>) = 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5186] exit_group(0 [pid 5081] getdents64(3, [pid 5186] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5188 attached [pid 5187] +++ exited with 0 +++ [pid 5185] exit_group(0 [pid 5081] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5188 [pid 5188] chdir("./16" [pid 5185] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] <... chdir resumed>) = 0 [pid 5186] +++ exited with 0 +++ [pid 5185] +++ exited with 0 +++ [pid 5081] lstat("./17/binderfs", [pid 5080] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] fstat(3, [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5188] <... prctl resumed>) = 0 [pid 5081] unlink("./17/binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... restart_syscall resumed>) = 0 [pid 5188] setpgid(0, 0 [pid 5079] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5188] <... setpgid resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... restart_syscall resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] getdents64(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] write(3, "1000", 4 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] <... write resumed>) = 4 [pid 5081] <... close resumed>) = 0 [pid 5080] lstat("./17/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5188] close(3 [pid 5081] rmdir("./17" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(3, [pid 5188] <... close resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] unlink("./17/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5081] mkdir("./18", 0777 [pid 5080] <... unlink resumed>) = 0 [pid 5079] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5076] getdents64(3, [pid 5188] <... symlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5188] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] lstat("./16/binderfs", [pid 5077] getdents64(3, [pid 5076] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] <... madvise resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] unlink("./16/binderfs" [pid 5077] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./17/binderfs", ./strace-static-x86_64: Process 5189 attached [pid 5188] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5189] chdir("./18" [pid 5188] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5189 [pid 5080] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] lstat("./19/binderfs", [pid 5076] unlink("./17/binderfs" [pid 5189] <... chdir resumed>) = 0 [pid 5188] <... write resumed>) = 1 [pid 5080] rmdir("./17" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5188] write(3, "\x32\x00", 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] close(3 [pid 5077] unlink("./19/binderfs" [pid 5076] getdents64(3, [pid 5189] <... prctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] rmdir("./16" [pid 5077] getdents64(3, [pid 5076] close(3 [pid 5189] setpgid(0, 0 [pid 5188] <... write resumed>) = 2 [pid 5080] mkdir("./18", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5188] exit_group(0 [pid 5079] mkdir("./17", 0777 [pid 5077] close(3 [pid 5076] rmdir("./17" [pid 5189] <... setpgid resumed>) = 0 [pid 5188] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] rmdir("./19" [pid 5076] mkdir("./18", 0777 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5190 [pid 5077] mkdir("./20", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5192 attached ./strace-static-x86_64: Process 5191 attached [pid 5189] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5189] write(3, "1000", 4 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5191 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5192 ./strace-static-x86_64: Process 5193 attached [pid 5192] chdir("./18" [pid 5191] chdir("./18" [pid 5189] <... write resumed>) = 4 [pid 5075] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5190 attached [pid 5189] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5193 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] <... chdir resumed>) = 0 [pid 5191] <... chdir resumed>) = 0 [pid 5190] chdir("./17" [pid 5189] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5190] <... chdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5189] symlink("/dev/binderfs", "./binderfs" [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] fstat(3, [pid 5191] <... prctl resumed>) = 0 [pid 5190] <... prctl resumed>) = 0 [pid 5189] <... symlink resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5192] <... prctl resumed>) = 0 [pid 5191] setpgid(0, 0 [pid 5190] setpgid(0, 0 [pid 5189] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] getdents64(3, [pid 5193] chdir("./20" [pid 5192] setpgid(0, 0 [pid 5191] <... setpgid resumed>) = 0 [pid 5190] <... setpgid resumed>) = 0 [pid 5189] <... madvise resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5192] <... setpgid resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] <... openat resumed>) = 3 [pid 5190] <... openat resumed>) = 3 [pid 5189] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] write(3, "1000", 4 [pid 5190] write(3, "1000", 4 [pid 5189] write(3, "1", 1 [pid 5075] lstat("./16/binderfs", [pid 5191] <... write resumed>) = 4 [pid 5190] <... write resumed>) = 4 [pid 5189] <... write resumed>) = 1 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5191] close(3 [pid 5190] close(3 [pid 5189] write(3, "\x32\x00", 2 [pid 5075] unlink("./16/binderfs" [pid 5192] <... openat resumed>) = 3 [pid 5191] <... close resumed>) = 0 [pid 5190] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5190] symlink("/dev/binderfs", "./binderfs" [pid 5075] getdents64(3, [pid 5191] symlink("/dev/binderfs", "./binderfs" [pid 5190] <... symlink resumed>) = 0 [pid 5189] <... write resumed>) = 2 [pid 5192] write(3, "1000", 4 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5191] <... symlink resumed>) = 0 [pid 5190] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5189] exit_group(0 [pid 5192] <... write resumed>) = 4 [pid 5075] close(3 [pid 5192] close(3 [pid 5191] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5190] <... madvise resumed>) = 0 [pid 5189] <... exit_group resumed>) = ? [pid 5075] <... close resumed>) = 0 [pid 5193] <... chdir resumed>) = 0 [pid 5192] <... close resumed>) = 0 [pid 5191] <... madvise resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] rmdir("./16" [pid 5192] symlink("/dev/binderfs", "./binderfs" [pid 5191] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5190] <... openat resumed>) = 3 [pid 5189] +++ exited with 0 +++ [pid 5075] <... rmdir resumed>) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5190] write(3, "1", 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5192] <... symlink resumed>) = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] mkdir("./17", 0777 [pid 5193] <... prctl resumed>) = 0 [pid 5192] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5191] write(3, "1", 1 [pid 5190] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5193] setpgid(0, 0 [pid 5192] <... madvise resumed>) = 0 [pid 5190] write(3, "\x32\x00", 2 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5193] <... setpgid resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5191] <... write resumed>) = 1 [pid 5190] <... write resumed>) = 2 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] write(3, "\x32\x00", 2 [pid 5190] exit_group(0 [pid 5192] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5194 [pid 5193] <... openat resumed>) = 3 [pid 5191] <... write resumed>) = 2 [pid 5190] <... exit_group resumed>) = ? [pid 5194] chdir("./17" [pid 5193] write(3, "1000", 4 [pid 5192] write(3, "1", 1 [pid 5191] exit_group(0 [pid 5190] +++ exited with 0 +++ [pid 5193] <... write resumed>) = 4 [pid 5192] <... write resumed>) = 1 [pid 5191] <... exit_group resumed>) = ? [pid 5081] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5194] <... chdir resumed>) = 0 [pid 5193] close(3 [pid 5192] write(3, "\x32\x00", 2 [pid 5191] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5193] <... close resumed>) = 0 [pid 5194] <... prctl resumed>) = 0 [pid 5079] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] setpgid(0, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5194] <... setpgid resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5193] symlink("/dev/binderfs", "./binderfs" [pid 5192] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... openat resumed>) = 3 [pid 5194] <... openat resumed>) = 3 [pid 5193] <... symlink resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5194] write(3, "1000", 4 [pid 5193] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5192] exit_group(0 [pid 5081] fstat(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5194] <... write resumed>) = 4 [pid 5193] <... madvise resumed>) = 0 [pid 5192] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5194] close(3 [pid 5193] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5194] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] symlink("/dev/binderfs", "./binderfs" [pid 5193] <... openat resumed>) = 3 [pid 5081] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5194] <... symlink resumed>) = 0 [pid 5193] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./17/binderfs", [pid 5194] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5193] <... write resumed>) = 1 [pid 5192] +++ exited with 0 +++ [pid 5081] lstat("./18/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5194] <... madvise resumed>) = 0 [pid 5193] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] unlink("./17/binderfs" [pid 5194] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... unlink resumed>) = 0 [pid 5194] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5194] write(3, "1", 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] unlink("./18/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5080] fstat(3, [pid 5081] getdents64(3, [pid 5079] rmdir("./17" [pid 5076] <... restart_syscall resumed>) = 0 [pid 5194] <... write resumed>) = 1 [pid 5193] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5194] write(3, "\x32\x00", 2 [pid 5193] exit_group(0 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] mkdir("./18", 0777 [pid 5194] <... write resumed>) = 2 [pid 5193] <... exit_group resumed>) = ? [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... mkdir resumed>) = 0 [pid 5194] exit_group(0 [pid 5081] rmdir("./18" [pid 5080] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... exit_group resumed>) = ? [pid 5193] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5195 attached [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5195 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] mkdir("./19", 0777 [pid 5080] lstat("./18/binderfs", [pid 5076] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5195] chdir("./18") = 0 [pid 5194] +++ exited with 0 +++ [pid 5080] unlink("./18/binderfs" [pid 5076] fstat(3, [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5196 [pid 5080] <... unlink resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5195] <... prctl resumed>) = 0 [pid 5080] getdents64(3, [pid 5076] getdents64(3, [pid 5195] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5196 attached [pid 5195] <... setpgid resumed>) = 0 [pid 5080] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5196] chdir("./19" [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5196] <... chdir resumed>) = 0 [pid 5195] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5195] write(3, "1000", 4 [pid 5080] rmdir("./18" [pid 5077] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5196] <... prctl resumed>) = 0 [pid 5195] <... write resumed>) = 4 [pid 5196] setpgid(0, 0 [pid 5195] close(3 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] lstat("./18/binderfs", [pid 5075] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5196] <... setpgid resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5080] mkdir("./19", 0777 [pid 5077] fstat(3, [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5195] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5196] <... openat resumed>) = 3 [pid 5195] <... symlink resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./18/binderfs" [pid 5075] fstat(3, [pid 5196] write(3, "1000", 4 [pid 5195] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] getdents64(3, [pid 5196] <... write resumed>) = 4 [pid 5195] <... madvise resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5196] close(3 [pid 5195] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5197 attached [pid 5196] <... close resumed>) = 0 [pid 5195] <... openat resumed>) = 3 [pid 5077] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5197] chdir("./19" [pid 5196] symlink("/dev/binderfs", "./binderfs" [pid 5195] write(3, "1", 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5197 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5197] <... chdir resumed>) = 0 [pid 5196] <... symlink resumed>) = 0 [pid 5195] <... write resumed>) = 1 [pid 5077] lstat("./20/binderfs", [pid 5076] close(3 [pid 5075] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5195] write(3, "\x32\x00", 2 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5197] <... prctl resumed>) = 0 [pid 5196] <... madvise resumed>) = 0 [pid 5195] <... write resumed>) = 2 [pid 5077] unlink("./20/binderfs" [pid 5076] rmdir("./18" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5197] setpgid(0, 0 [pid 5196] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5195] exit_group(0 [pid 5197] <... setpgid resumed>) = 0 [pid 5196] <... openat resumed>) = 3 [pid 5195] <... exit_group resumed>) = ? [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] lstat("./17/binderfs", [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5196] write(3, "1", 1 [pid 5195] +++ exited with 0 +++ [pid 5077] getdents64(3, [pid 5076] mkdir("./19", 0777 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5197] <... openat resumed>) = 3 [pid 5196] <... write resumed>) = 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5197] write(3, "1000", 4 [pid 5196] write(3, "\x32\x00", 2 [pid 5077] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] unlink("./17/binderfs" [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./20") = 0 [pid 5196] <... write resumed>) = 2 [pid 5077] mkdir("./21", 0777 [pid 5197] <... write resumed>) = 4 [pid 5196] exit_group(0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... unlink resumed>) = 0 [pid 5197] close(3 [pid 5196] <... exit_group resumed>) = ? [pid 5079] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5198 attached [pid 5197] <... close resumed>) = 0 [pid 5196] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5198 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs" [pid 5079] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(3 [pid 5197] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... close resumed>) = 0 [pid 5197] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5199 [pid 5075] rmdir("./17" [pid 5198] chdir("./19" [pid 5197] <... madvise resumed>) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] fstat(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5198] <... chdir resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] mkdir("./18", 0777./strace-static-x86_64: Process 5199 attached [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5197] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5199] chdir("./21" [pid 5198] <... prctl resumed>) = 0 [pid 5197] write(3, "1", 1 [pid 5081] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5200 attached [pid 5199] <... chdir resumed>) = 0 [pid 5198] setpgid(0, 0 [pid 5197] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5197] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5198] <... setpgid resumed>) = 0 [pid 5079] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5200 [pid 5200] chdir("./18" [pid 5199] <... prctl resumed>) = 0 [pid 5197] <... write resumed>) = 2 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] setpgid(0, 0 [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5197] exit_group(0 [pid 5081] fstat(3, [pid 5079] lstat("./18/binderfs", [pid 5199] <... setpgid resumed>) = 0 [pid 5197] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5200] <... chdir resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5198] <... openat resumed>) = 3 [pid 5197] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5079] unlink("./18/binderfs" [pid 5199] <... openat resumed>) = 3 [pid 5198] write(3, "1000", 4 [pid 5199] write(3, "1000", 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5199] <... write resumed>) = 4 [pid 5198] <... write resumed>) = 4 [pid 5081] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5199] close(3 [pid 5198] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] <... close resumed>) = 0 [pid 5198] <... close resumed>) = 0 [pid 5081] lstat("./19/binderfs", [pid 5079] getdents64(3, [pid 5199] symlink("/dev/binderfs", "./binderfs" [pid 5198] symlink("/dev/binderfs", "./binderfs" [pid 5080] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5199] <... symlink resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5199] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5198] <... symlink resumed>) = 0 [pid 5081] unlink("./19/binderfs" [pid 5080] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5200] <... prctl resumed>) = 0 [pid 5199] <... madvise resumed>) = 0 [pid 5198] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... unlink resumed>) = 0 [pid 5200] setpgid(0, 0 [pid 5199] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5198] <... madvise resumed>) = 0 [pid 5200] <... setpgid resumed>) = 0 [pid 5199] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5080] fstat(3, [pid 5079] rmdir("./18" [pid 5199] write(3, "1", 1 [pid 5198] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5199] <... write resumed>) = 1 [pid 5079] <... rmdir resumed>) = 0 [pid 5199] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5199] <... write resumed>) = 2 [pid 5198] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5079] mkdir("./19", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5199] exit_group(0 [pid 5198] write(3, "1", 1 [pid 5081] rmdir("./19" [pid 5199] <... exit_group resumed>) = ? [pid 5080] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5200] <... openat resumed>) = 3 [pid 5199] +++ exited with 0 +++ [pid 5198] <... write resumed>) = 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5198] write(3, "\x32\x00", 2 [pid 5081] mkdir("./20", 0777 [pid 5080] lstat("./19/binderfs", ./strace-static-x86_64: Process 5201 attached [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5201 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] chdir("./19" [pid 5198] <... write resumed>) = 2 [pid 5080] unlink("./19/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5201] <... chdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5202 [pid 5080] getdents64(3, [pid 5077] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5202 attached [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] write(3, "1000", 4 [pid 5198] exit_group(0 [pid 5201] <... prctl resumed>) = 0 [pid 5200] <... write resumed>) = 4 [pid 5198] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5202] chdir("./20" [pid 5201] setpgid(0, 0 [pid 5200] close(3 [pid 5201] <... setpgid resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] <... chdir resumed>) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] <... close resumed>) = 0 [pid 5198] +++ exited with 0 +++ [pid 5080] rmdir("./19" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] symlink("/dev/binderfs", "./binderfs" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] <... rmdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5080] mkdir("./20", 0777 [pid 5200] <... symlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5202] <... prctl resumed>) = 0 [pid 5201] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5200] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] fstat(3, [pid 5076] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5077] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5203 [pid 5200] <... madvise resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5200] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5203 attached [pid 5202] setpgid(0, 0 [pid 5201] write(3, "1000", 4 [pid 5200] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5201] <... write resumed>) = 4 [pid 5200] write(3, "1", 1 [pid 5077] lstat("./21/binderfs", [pid 5076] lstat("./19/binderfs", [pid 5203] chdir("./20" [pid 5202] <... setpgid resumed>) = 0 [pid 5201] close(3 [pid 5200] <... write resumed>) = 1 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5203] <... chdir resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] <... close resumed>) = 0 [pid 5200] write(3, "\x32\x00", 2 [pid 5077] unlink("./21/binderfs" [pid 5076] unlink("./19/binderfs" [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5202] <... openat resumed>) = 3 [pid 5201] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5203] <... prctl resumed>) = 0 [pid 5202] write(3, "1000", 4 [pid 5201] <... symlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5203] setpgid(0, 0 [pid 5202] <... write resumed>) = 4 [pid 5201] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5200] <... write resumed>) = 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5203] <... setpgid resumed>) = 0 [pid 5202] close(3 [pid 5201] <... madvise resumed>) = 0 [pid 5200] exit_group(0 [pid 5077] close(3 [pid 5076] close(3 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5202] <... close resumed>) = 0 [pid 5201] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5200] <... exit_group resumed>) = ? [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5203] <... openat resumed>) = 3 [pid 5202] symlink("/dev/binderfs", "./binderfs" [pid 5201] <... openat resumed>) = 3 [pid 5077] rmdir("./21" [pid 5076] rmdir("./19" [pid 5203] write(3, "1000", 4 [pid 5202] <... symlink resumed>) = 0 [pid 5201] write(3, "1", 1 [pid 5200] +++ exited with 0 +++ [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5203] <... write resumed>) = 4 [pid 5202] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5201] <... write resumed>) = 1 [pid 5077] mkdir("./22", 0777 [pid 5076] mkdir("./20", 0777 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5203] close(3 [pid 5202] <... madvise resumed>) = 0 [pid 5201] write(3, "\x32\x00", 2 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5203] <... close resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5201] <... write resumed>) = 2 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5204 attached ./strace-static-x86_64: Process 5205 attached [pid 5203] symlink("/dev/binderfs", "./binderfs" [pid 5202] <... openat resumed>) = 3 [pid 5201] exit_group(0 [pid 5204] chdir("./20" [pid 5205] chdir("./22" [pid 5203] <... symlink resumed>) = 0 [pid 5202] write(3, "1", 1 [pid 5201] <... exit_group resumed>) = ? [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5205 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5204 [pid 5204] <... chdir resumed>) = 0 [pid 5205] <... chdir resumed>) = 0 [pid 5203] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5202] <... write resumed>) = 1 [pid 5201] +++ exited with 0 +++ [pid 5075] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] <... madvise resumed>) = 0 [pid 5202] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5204] <... prctl resumed>) = 0 [pid 5205] <... prctl resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5202] <... write resumed>) = 2 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5204] setpgid(0, 0 [pid 5205] setpgid(0, 0 [pid 5203] <... openat resumed>) = 3 [pid 5202] exit_group(0 [pid 5075] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5204] <... setpgid resumed>) = 0 [pid 5205] <... setpgid resumed>) = 0 [pid 5203] write(3, "1", 1 [pid 5202] <... exit_group resumed>) = ? [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] <... write resumed>) = 1 [pid 5202] +++ exited with 0 +++ [pid 5075] <... openat resumed>) = 3 [pid 5204] <... openat resumed>) = 3 [pid 5203] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] fstat(3, [pid 5204] write(3, "1000", 4 [pid 5205] <... openat resumed>) = 3 [pid 5203] <... write resumed>) = 2 [pid 5079] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5204] <... write resumed>) = 4 [pid 5205] write(3, "1000", 4 [pid 5203] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5204] close(3 [pid 5205] <... write resumed>) = 4 [pid 5203] <... exit_group resumed>) = ? [pid 5081] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5204] <... close resumed>) = 0 [pid 5205] close(3 [pid 5203] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5204] symlink("/dev/binderfs", "./binderfs" [pid 5205] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5075] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] fstat(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] lstat("./18/binderfs", [pid 5205] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5205] <... symlink resumed>) = 0 [pid 5081] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5204] <... symlink resumed>) = 0 [pid 5205] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5204] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5205] <... madvise resumed>) = 0 [pid 5081] lstat("./20/binderfs", [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] lstat("./19/binderfs", [pid 5075] unlink("./18/binderfs" [pid 5204] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5204] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5205] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./20/binderfs" [pid 5079] unlink("./19/binderfs" [pid 5075] getdents64(3, [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] lstat("./20/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5204] <... openat resumed>) = 3 [pid 5205] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3 [pid 5075] <... close resumed>) = 0 [pid 5204] write(3, "1", 1 [pid 5205] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 [pid 5080] unlink("./20/binderfs" [pid 5079] <... close resumed>) = 0 [pid 5075] rmdir("./18" [pid 5204] <... write resumed>) = 1 [pid 5081] rmdir("./20" [pid 5080] <... unlink resumed>) = 0 [pid 5079] rmdir("./19" [pid 5080] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] mkdir("./19", 0777 [pid 5081] mkdir("./21", 0777 [pid 5204] write(3, "\x32\x00", 2 [pid 5205] <... write resumed>) = 1 [pid 5080] <... close resumed>) = 0 [pid 5079] mkdir("./20", 0777 [pid 5205] write(3, "\x32\x00", 2 [pid 5080] rmdir("./20" [pid 5075] <... mkdir resumed>) = 0 [pid 5204] <... write resumed>) = 2 [pid 5205] <... write resumed>) = 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5204] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./21", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5205] exit_group(0) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5207 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5208 [pid 5204] <... exit_group resumed>) = ? [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5206 ./strace-static-x86_64: Process 5208 attached ./strace-static-x86_64: Process 5207 attached [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5209 ./strace-static-x86_64: Process 5206 attached [pid 5205] +++ exited with 0 +++ [pid 5208] chdir("./20" [pid 5206] chdir("./19" [pid 5204] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5208] <... chdir resumed>) = 0 [pid 5207] chdir("./21" [pid 5206] <... chdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] <... chdir resumed>) = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5208] <... prctl resumed>) = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5206] <... prctl resumed>) = 0 [pid 5077] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5209 attached [pid 5208] setpgid(0, 0 [pid 5207] <... prctl resumed>) = 0 [pid 5206] setpgid(0, 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5209] chdir("./21" [pid 5208] <... setpgid resumed>) = 0 [pid 5207] setpgid(0, 0 [pid 5206] <... setpgid resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5209] <... chdir resumed>) = 0 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5207] <... setpgid resumed>) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5208] <... openat resumed>) = 3 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5206] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5076] <... openat resumed>) = 3 [pid 5209] <... prctl resumed>) = 0 [pid 5208] write(3, "1000", 4 [pid 5207] <... openat resumed>) = 3 [pid 5206] write(3, "1000", 4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5209] setpgid(0, 0 [pid 5208] <... write resumed>) = 4 [pid 5207] write(3, "1000", 4 [pid 5206] <... write resumed>) = 4 [pid 5077] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5209] <... setpgid resumed>) = 0 [pid 5208] close(3 [pid 5207] <... write resumed>) = 4 [pid 5206] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] <... close resumed>) = 0 [pid 5207] close(3 [pid 5206] <... close resumed>) = 0 [pid 5077] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5209] <... openat resumed>) = 3 [pid 5208] symlink("/dev/binderfs", "./binderfs" [pid 5207] <... close resumed>) = 0 [pid 5206] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5209] write(3, "1000", 4 [pid 5208] <... symlink resumed>) = 0 [pid 5207] symlink("/dev/binderfs", "./binderfs" [pid 5206] <... symlink resumed>) = 0 [pid 5077] lstat("./22/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5209] <... write resumed>) = 4 [pid 5208] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5207] <... symlink resumed>) = 0 [pid 5206] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./20/binderfs", [pid 5209] close(3 [pid 5208] <... madvise resumed>) = 0 [pid 5207] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5206] <... madvise resumed>) = 0 [pid 5077] unlink("./22/binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5209] <... close resumed>) = 0 [pid 5207] <... madvise resumed>) = 0 [pid 5206] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] unlink("./20/binderfs" [pid 5209] symlink("/dev/binderfs", "./binderfs" [pid 5208] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5207] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5206] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5209] <... symlink resumed>) = 0 [pid 5208] <... openat resumed>) = 3 [pid 5207] <... openat resumed>) = 3 [pid 5206] write(3, "1", 1 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5209] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5208] write(3, "1", 1 [pid 5207] write(3, "1", 1 [pid 5206] <... write resumed>) = 1 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5209] <... madvise resumed>) = 0 [pid 5206] write(3, "\x32\x00", 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5209] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5208] <... write resumed>) = 1 [pid 5207] <... write resumed>) = 1 [pid 5206] <... write resumed>) = 2 [pid 5077] close(3 [pid 5076] <... close resumed>) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5208] write(3, "\x32\x00", 2 [pid 5207] write(3, "\x32\x00", 2 [pid 5077] <... close resumed>) = 0 [pid 5076] rmdir("./20" [pid 5209] write(3, "1", 1 [pid 5076] <... rmdir resumed>) = 0 [pid 5209] <... write resumed>) = 1 [pid 5208] <... write resumed>) = 2 [pid 5206] exit_group(0 [pid 5077] rmdir("./22" [pid 5076] mkdir("./21", 0777 [pid 5209] write(3, "\x32\x00", 2 [pid 5208] exit_group(0 [pid 5206] <... exit_group resumed>) = ? [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5209] <... write resumed>) = 2 [pid 5208] <... exit_group resumed>) = ? [pid 5207] <... write resumed>) = 2 [pid 5206] +++ exited with 0 +++ [pid 5077] mkdir("./23", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5208] +++ exited with 0 +++ [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5210 [pid 5077] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5210 attached [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5211 attached [pid 5207] exit_group(0 [pid 5079] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5211 [pid 5211] chdir("./23" [pid 5210] chdir("./21" [pid 5207] <... exit_group resumed>) = ? [pid 5079] <... openat resumed>) = 3 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5211] <... chdir resumed>) = 0 [pid 5210] <... chdir resumed>) = 0 [pid 5079] fstat(3, [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5209] exit_group(0 [pid 5207] +++ exited with 0 +++ [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5210] <... prctl resumed>) = 0 [pid 5209] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5211] <... prctl resumed>) = 0 [pid 5210] setpgid(0, 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] <... setpgid resumed>) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./20/binderfs", [pid 5075] <... openat resumed>) = 3 [pid 5211] setpgid(0, 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, [pid 5209] +++ exited with 0 +++ [pid 5081] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] unlink("./20/binderfs" [pid 5211] <... setpgid resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5210] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5211] <... openat resumed>) = 3 [pid 5210] write(3, "1000", 4 [pid 5081] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] getdents64(3, [pid 5211] write(3, "1000", 4 [pid 5210] <... write resumed>) = 4 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5211] <... write resumed>) = 4 [pid 5210] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] close(3 [pid 5210] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] <... close resumed>) = 0 [pid 5210] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs" [pid 5210] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5075] lstat("./19/binderfs", [pid 5211] <... symlink resumed>) = 0 [pid 5210] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] rmdir("./20" [pid 5211] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] lstat("./21/binderfs", [pid 5079] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./19/binderfs" [pid 5211] <... madvise resumed>) = 0 [pid 5210] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] mkdir("./21", 0777 [pid 5211] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./21/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5075] <... unlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] fstat(3, [pid 5075] getdents64(3, [pid 5211] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5211] write(3, "1", 1 [pid 5210] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5211] <... write resumed>) = 1 [pid 5081] rmdir("./21" [pid 5075] close(3 [pid 5081] <... rmdir resumed>) = 0 [pid 5211] write(3, "\x32\x00", 2 [pid 5210] write(3, "1", 1 [pid 5081] mkdir("./22", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5212 [pid 5075] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5213 ./strace-static-x86_64: Process 5212 attached [pid 5210] <... write resumed>) = 1 [pid 5080] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./19"./strace-static-x86_64: Process 5213 attached [pid 5212] chdir("./21" [pid 5211] <... write resumed>) = 2 [pid 5210] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] <... chdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5212] setpgid(0, 0) = 0 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5212] write(3, "1000", 4) = 4 [pid 5212] close(3) = 0 [pid 5212] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5210] <... write resumed>) = 2 [pid 5212] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] lstat("./21/binderfs", [pid 5211] exit_group(0 [pid 5075] mkdir("./20", 0777 [pid 5212] <... madvise resumed>) = 0 [pid 5210] exit_group(0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5212] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5211] <... exit_group resumed>) = ? [pid 5210] <... exit_group resumed>) = ? [pid 5080] unlink("./21/binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5212] write(3, "1", 1) = 1 [pid 5212] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5213] chdir("./22" [pid 5212] <... write resumed>) = 2 [pid 5211] +++ exited with 0 +++ [pid 5210] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5212] exit_group(0 [pid 5213] <... chdir resumed>) = 0 [pid 5212] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5214 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] close(3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... prctl resumed>) = 0 [pid 5212] +++ exited with 0 +++ [pid 5080] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./21" [pid 5076] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5214 attached [pid 5213] setpgid(0, 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5214] chdir("./20" [pid 5213] <... setpgid resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5214] <... chdir resumed>) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] mkdir("./22", 0777 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] getdents64(3, [pid 5214] <... prctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5214] setpgid(0, 0 [pid 5213] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] fstat(3, [pid 5076] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5214] <... setpgid resumed>) = 0 [pid 5213] write(3, "1000", 4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5213] <... write resumed>) = 4 [pid 5079] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5076] lstat("./21/binderfs", [pid 5214] <... openat resumed>) = 3 [pid 5213] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5215 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5214] write(3, "1000", 4 [pid 5213] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./21/binderfs" [pid 5214] <... write resumed>) = 4 [pid 5213] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5215 attached [pid 5214] close(3 [pid 5077] lstat("./23/binderfs", [pid 5076] getdents64(3, [pid 5079] fstat(3, [pid 5215] chdir("./22" [pid 5214] <... close resumed>) = 0 [pid 5213] <... symlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5215] <... chdir resumed>) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 5213] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] getdents64(3, [pid 5077] unlink("./23/binderfs" [pid 5076] close(3 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] <... symlink resumed>) = 0 [pid 5213] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5215] <... prctl resumed>) = 0 [pid 5214] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5213] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5076] rmdir("./21" [pid 5215] setpgid(0, 0 [pid 5214] <... madvise resumed>) = 0 [pid 5213] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5215] <... setpgid resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5213] write(3, "1", 1 [pid 5079] lstat("./21/binderfs", [pid 5077] close(3 [pid 5076] mkdir("./22", 0777 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5214] <... openat resumed>) = 3 [pid 5213] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5215] <... openat resumed>) = 3 [pid 5214] write(3, "1", 1 [pid 5213] write(3, "\x32\x00", 2 [pid 5079] unlink("./21/binderfs" [pid 5077] rmdir("./23" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5215] write(3, "1000", 4 [pid 5214] <... write resumed>) = 1 [pid 5077] <... rmdir resumed>) = 0 [pid 5215] <... write resumed>) = 4 [pid 5214] write(3, "\x32\x00", 2 [pid 5077] mkdir("./24", 0777 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5216 [pid 5215] close(3 [pid 5214] <... write resumed>) = 2 [pid 5213] <... write resumed>) = 2 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5215] <... close resumed>) = 0 [pid 5214] exit_group(0 [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5213] exit_group(0./strace-static-x86_64: Process 5217 attached [pid 5215] symlink("/dev/binderfs", "./binderfs" [pid 5214] <... exit_group resumed>) = ? [pid 5213] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5217] chdir("./24" [pid 5215] <... symlink resumed>) = 0 [pid 5214] +++ exited with 0 +++ [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5217 [pid 5215] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5215] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5213] +++ exited with 0 +++ [pid 5215] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] close(3./strace-static-x86_64: Process 5216 attached [pid 5215] write(3, "1", 1 [pid 5079] <... close resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5217] <... chdir resumed>) = 0 [pid 5216] chdir("./22" [pid 5215] <... write resumed>) = 1 [pid 5079] rmdir("./21" [pid 5075] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] <... chdir resumed>) = 0 [pid 5215] write(3, "\x32\x00", 2 [pid 5081] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5215] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] <... prctl resumed>) = 0 [pid 5215] exit_group(0 [pid 5081] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] mkdir("./22", 0777 [pid 5075] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5216] setpgid(0, 0 [pid 5215] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5217] <... prctl resumed>) = 0 [pid 5216] <... setpgid resumed>) = 0 [pid 5215] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5217] setpgid(0, 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, [pid 5216] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5216] write(3, "1000", 4) = 4 [pid 5216] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5217] <... setpgid resumed>) = 0 [pid 5216] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5218 [pid 5075] getdents64(3, [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5081] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5216] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] lstat("./22/binderfs", [pid 5075] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5218 attached [pid 5217] <... openat resumed>) = 3 [pid 5216] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5218] chdir("./22" [pid 5217] write(3, "1000", 4 [pid 5216] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./22/binderfs" [pid 5080] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5218] <... chdir resumed>) = 0 [pid 5217] <... write resumed>) = 4 [pid 5216] <... openat resumed>) = 3 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5217] close(3 [pid 5216] write(3, "1", 1 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./20/binderfs", [pid 5218] <... prctl resumed>) = 0 [pid 5217] <... close resumed>) = 0 [pid 5216] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5080] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5218] setpgid(0, 0 [pid 5217] symlink("/dev/binderfs", "./binderfs" [pid 5216] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5218] <... setpgid resumed>) = 0 [pid 5217] <... symlink resumed>) = 0 [pid 5216] <... write resumed>) = 2 [pid 5081] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5075] unlink("./20/binderfs" [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5217] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5216] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5218] <... openat resumed>) = 3 [pid 5216] <... exit_group resumed>) = ? [pid 5075] <... unlink resumed>) = 0 [pid 5218] write(3, "1000", 4 [pid 5217] <... madvise resumed>) = 0 [pid 5216] +++ exited with 0 +++ [pid 5081] rmdir("./22" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5218] <... write resumed>) = 4 [pid 5217] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5218] close(3) = 0 [pid 5218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5217] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5218] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] mkdir("./23", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5218] <... madvise resumed>) = 0 [pid 5217] write(3, "1", 1 [pid 5075] close(3 [pid 5218] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5218] write(3, "1", 1 [pid 5217] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5218] <... write resumed>) = 1 [pid 5217] write(3, "\x32\x00", 2 [pid 5218] write(3, "\x32\x00", 2) = 2 [pid 5217] <... write resumed>) = 2 [pid 5080] lstat("./22/binderfs", [pid 5076] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./20" [pid 5218] exit_group(0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5218] <... exit_group resumed>) = ? [pid 5218] +++ exited with 0 +++ [pid 5217] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5219 [pid 5080] unlink("./22/binderfs" [pid 5076] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5219 attached [pid 5217] <... exit_group resumed>) = ? [pid 5219] chdir("./23") = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] setpgid(0, 0) = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] mkdir("./21", 0777 [pid 5080] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] fstat(3, [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] getdents64(3, [pid 5219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5080] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5220 [pid 5080] rmdir("./22" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] lstat("./22/binderfs", ./strace-static-x86_64: Process 5220 attached [pid 5219] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5220] chdir("./21" [pid 5219] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] fstat(3, [pid 5076] unlink("./22/binderfs" [pid 5220] <... chdir resumed>) = 0 [pid 5219] write(3, "1", 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5219] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5080] mkdir("./23", 0777 [pid 5220] <... prctl resumed>) = 0 [pid 5219] write(3, "\x32\x00", 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5220] setpgid(0, 0 [pid 5219] <... write resumed>) = 2 [pid 5217] +++ exited with 0 +++ [pid 5080] <... mkdir resumed>) = 0 [pid 5079] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5220] <... setpgid resumed>) = 0 [pid 5219] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] close(3 [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] <... exit_group resumed>) = ? [pid 5079] lstat("./22/binderfs", ./strace-static-x86_64: Process 5221 attached [pid 5220] <... openat resumed>) = 3 [pid 5219] +++ exited with 0 +++ [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5220] write(3, "1000", 4 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5221 [pid 5220] <... write resumed>) = 4 [pid 5079] unlink("./22/binderfs" [pid 5076] rmdir("./22" [pid 5220] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5220] <... close resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5220] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... rmdir resumed>) = 0 [pid 5220] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./23", 0777 [pid 5220] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5220] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... openat resumed>) = 3 [pid 5220] <... openat resumed>) = 3 [pid 5220] write(3, "1", 1 [pid 5221] chdir("./23" [pid 5220] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5077] fstat(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5220] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5221] <... chdir resumed>) = 0 [pid 5220] <... write resumed>) = 2 [pid 5081] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5220] exit_group(0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5220] <... exit_group resumed>) = ? [pid 5079] rmdir("./22" [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5220] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5222 attached [pid 5222] chdir("./23" [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] mkdir("./23", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5222 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5222] <... chdir resumed>) = 0 [pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5222] setpgid(0, 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5081] lstat("./23/binderfs", [pid 5077] lstat("./24/binderfs", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5222] <... setpgid resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] unlink("./23/binderfs" [pid 5075] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] unlink("./24/binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5222] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5222] write(3, "1000", 4) = 4 [pid 5222] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5222] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5081] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5222] symlink("/dev/binderfs", "./binderfs" [pid 5075] fstat(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5223 [pid 5077] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5222] <... symlink resumed>) = 0 [pid 5081] rmdir("./23" [pid 5077] rmdir("./24" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5222] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5223 attached ) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5223] chdir("./23" [pid 5222] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] mkdir("./24", 0777 [pid 5223] <... chdir resumed>) = 0 [pid 5222] <... openat resumed>) = 3 [pid 5221] <... prctl resumed>) = 0 [pid 5077] mkdir("./25", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5222] write(3, "1", 1 [pid 5221] setpgid(0, 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5223] <... prctl resumed>) = 0 [pid 5222] <... write resumed>) = 1 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] lstat("./21/binderfs", [pid 5223] setpgid(0, 0 [pid 5222] write(3, "\x32\x00", 2 [pid 5221] <... setpgid resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5223] <... setpgid resumed>) = 0 [pid 5222] <... write resumed>) = 2 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5222] exit_group(0 [pid 5223] <... openat resumed>) = 3 [pid 5222] <... exit_group resumed>) = ? [pid 5075] unlink("./21/binderfs"./strace-static-x86_64: Process 5224 attached [pid 5223] write(3, "1000", 4 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5224 [pid 5222] +++ exited with 0 +++ [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5225 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5225 attached [pid 5223] <... write resumed>) = 4 [pid 5221] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5225] chdir("./25" [pid 5224] chdir("./24" [pid 5223] close(3 [pid 5221] write(3, "1000", 4 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5225] <... chdir resumed>) = 0 [pid 5224] <... chdir resumed>) = 0 [pid 5223] <... close resumed>) = 0 [pid 5221] <... write resumed>) = 4 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] close(3 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5223] symlink("/dev/binderfs", "./binderfs" [pid 5221] close(3 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5225] <... prctl resumed>) = 0 [pid 5223] <... symlink resumed>) = 0 [pid 5075] rmdir("./21" [pid 5221] <... close resumed>) = 0 [pid 5225] setpgid(0, 0 [pid 5223] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5225] <... setpgid resumed>) = 0 [pid 5223] <... madvise resumed>) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5223] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5221] symlink("/dev/binderfs", "./binderfs" [pid 5076] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5225] <... openat resumed>) = 3 [pid 5223] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./22", 0777 [pid 5225] write(3, "1000", 4 [pid 5223] write(3, "1", 1 [pid 5221] <... symlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5225] <... write resumed>) = 4 [pid 5223] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5225] close(3 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5223] write(3, "\x32\x00", 2 [pid 5221] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... openat resumed>) = 3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5225] <... close resumed>) = 0 [pid 5224] <... prctl resumed>) = 0 [pid 5223] <... write resumed>) = 2 [pid 5225] symlink("/dev/binderfs", "./binderfs" [pid 5223] exit_group(0 [pid 5076] fstat(3, [pid 5225] <... symlink resumed>) = 0 [pid 5223] <... exit_group resumed>) = ? [pid 5225] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5224] setpgid(0, 0 [pid 5223] +++ exited with 0 +++ [pid 5221] <... madvise resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5225] <... madvise resumed>) = 0 [pid 5224] <... setpgid resumed>) = 0 [pid 5221] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5226 [pid 5225] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5221] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5226 attached [pid 5225] <... openat resumed>) = 3 [pid 5221] write(3, "1", 1 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5226] chdir("./22" [pid 5225] write(3, "1", 1 [pid 5224] <... openat resumed>) = 3 [pid 5221] <... write resumed>) = 1 [pid 5076] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5226] <... chdir resumed>) = 0 [pid 5225] <... write resumed>) = 1 [pid 5224] write(3, "1000", 4 [pid 5221] write(3, "\x32\x00", 2 [pid 5079] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] write(3, "\x32\x00", 2 [pid 5224] <... write resumed>) = 4 [pid 5221] <... write resumed>) = 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... prctl resumed>) = 0 [pid 5225] <... write resumed>) = 2 [pid 5224] close(3 [pid 5221] exit_group(0 [pid 5226] setpgid(0, 0 [pid 5225] exit_group(0 [pid 5224] <... close resumed>) = 0 [pid 5221] <... exit_group resumed>) = ? [pid 5079] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] lstat("./23/binderfs", [pid 5226] <... setpgid resumed>) = 0 [pid 5225] <... exit_group resumed>) = ? [pid 5224] symlink("/dev/binderfs", "./binderfs" [pid 5221] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 3 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5225] +++ exited with 0 +++ [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5226] <... openat resumed>) = 3 [pid 5224] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] unlink("./23/binderfs" [pid 5226] write(3, "1000", 4 [pid 5224] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5226] <... write resumed>) = 4 [pid 5076] <... unlink resumed>) = 0 [pid 5226] close(3 [pid 5224] <... madvise resumed>) = 0 [pid 5226] <... close resumed>) = 0 [pid 5226] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5079] getdents64(3, [pid 5226] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5224] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] getdents64(3, [pid 5226] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5226] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5224] <... openat resumed>) = 3 [pid 5079] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... openat resumed>) = 3 [pid 5224] write(3, "1", 1 [pid 5226] write(3, "1", 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... write resumed>) = 1 [pid 5224] <... write resumed>) = 1 [pid 5080] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./23/binderfs", [pid 5077] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5226] write(3, "\x32\x00", 2 [pid 5224] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... write resumed>) = 2 [pid 5224] <... write resumed>) = 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5226] exit_group(0 [pid 5224] exit_group(0 [pid 5079] unlink("./23/binderfs" [pid 5226] <... exit_group resumed>) = ? [pid 5224] <... exit_group resumed>) = ? [pid 5080] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5076] rmdir("./23" [pid 5226] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5224] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] fstat(3, [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5077] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] mkdir("./24", 0777 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5077] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5080] lstat("./23/binderfs", [pid 5079] rmdir("./23" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5081] fstat(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] unlink("./23/binderfs" [pid 5081] getdents64(3, [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] lstat("./25/binderfs", [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... restart_syscall resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] getdents64(3, [pid 5079] mkdir("./24", 0777 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5081] lstat("./24/binderfs", [pid 5080] <... close resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] rmdir("./23" [pid 5077] unlink("./25/binderfs" [pid 5081] unlink("./24/binderfs" [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] mkdir("./24", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5227 [pid 5081] getdents64(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] close(3 [pid 5077] getdents64(3, [pid 5075] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5228 attached ./strace-static-x86_64: Process 5227 attached [pid 5081] <... close resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5229 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5228 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5228] chdir("./24" [pid 5227] chdir("./24" [pid 5081] rmdir("./24" [pid 5077] close(3 [pid 5075] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5228] <... chdir resumed>) = 0 [pid 5227] <... chdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] mkdir("./25", 0777 [pid 5075] <... openat resumed>) = 3 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] <... prctl resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] rmdir("./25" [pid 5075] fstat(3, [pid 5227] setpgid(0, 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached [pid 5228] <... prctl resumed>) = 0 [pid 5227] <... setpgid resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5230 attached [pid 5229] chdir("./24" [pid 5228] setpgid(0, 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5230 [pid 5077] mkdir("./26", 0777 [pid 5229] <... chdir resumed>) = 0 [pid 5228] <... setpgid resumed>) = 0 [pid 5227] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] write(3, "1000", 4 [pid 5229] <... prctl resumed>) = 0 [pid 5227] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5229] setpgid(0, 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5227] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5229] <... setpgid resumed>) = 0 [pid 5227] <... close resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5227] symlink("/dev/binderfs", "./binderfs" [pid 5229] <... openat resumed>) = 3 [pid 5228] <... openat resumed>) = 3 [pid 5227] <... symlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5229] write(3, "1000", 4 [pid 5228] write(3, "1000", 4 [pid 5227] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5231 [pid 5075] lstat("./22/binderfs", ./strace-static-x86_64: Process 5231 attached [pid 5230] chdir("./25" [pid 5229] <... write resumed>) = 4 [pid 5228] <... write resumed>) = 4 [pid 5227] <... madvise resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5231] chdir("./26" [pid 5230] <... chdir resumed>) = 0 [pid 5229] close(3 [pid 5228] close(3 [pid 5227] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] unlink("./22/binderfs" [pid 5231] <... chdir resumed>) = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5229] <... close resumed>) = 0 [pid 5228] <... close resumed>) = 0 [pid 5227] <... openat resumed>) = 3 [pid 5075] <... unlink resumed>) = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] <... prctl resumed>) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs" [pid 5228] symlink("/dev/binderfs", "./binderfs" [pid 5227] write(3, "1", 1 [pid 5075] getdents64(3, [pid 5231] <... prctl resumed>) = 0 [pid 5230] setpgid(0, 0 [pid 5229] <... symlink resumed>) = 0 [pid 5228] <... symlink resumed>) = 0 [pid 5227] <... write resumed>) = 1 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5231] setpgid(0, 0 [pid 5230] <... setpgid resumed>) = 0 [pid 5229] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5228] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5227] write(3, "\x32\x00", 2 [pid 5075] close(3 [pid 5231] <... setpgid resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] <... madvise resumed>) = 0 [pid 5228] <... madvise resumed>) = 0 [pid 5227] <... write resumed>) = 2 [pid 5075] <... close resumed>) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... openat resumed>) = 3 [pid 5229] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5228] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5227] exit_group(0 [pid 5075] rmdir("./22" [pid 5231] <... openat resumed>) = 3 [pid 5230] write(3, "1000", 4 [pid 5229] <... openat resumed>) = 3 [pid 5228] <... openat resumed>) = 3 [pid 5227] <... exit_group resumed>) = ? [pid 5075] <... rmdir resumed>) = 0 [pid 5231] write(3, "1000", 4 [pid 5230] <... write resumed>) = 4 [pid 5229] write(3, "1", 1 [pid 5228] write(3, "1", 1 [pid 5227] +++ exited with 0 +++ [pid 5075] mkdir("./23", 0777 [pid 5231] <... write resumed>) = 4 [pid 5230] close(3 [pid 5229] <... write resumed>) = 1 [pid 5228] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5231] close(3 [pid 5230] <... close resumed>) = 0 [pid 5229] write(3, "\x32\x00", 2 [pid 5228] write(3, "\x32\x00", 2 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] <... close resumed>) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5232 [pid 5231] <... symlink resumed>) = 0 [pid 5231] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5076] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5231] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] <... openat resumed>) = 3 [pid 5230] symlink("/dev/binderfs", "./binderfs" [pid 5076] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5231] write(3, "1", 1 [pid 5230] <... symlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5230] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5230] <... madvise resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5232 attached [pid 5076] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] chdir("./23" [pid 5230] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5232] <... chdir resumed>) = 0 [pid 5230] <... openat resumed>) = 3 [pid 5076] lstat("./24/binderfs", [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] write(3, "1", 1 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5232] setpgid(0, 0 [pid 5076] unlink("./24/binderfs" [pid 5232] <... setpgid resumed>) = 0 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... unlink resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5231] <... write resumed>) = 1 [pid 5230] <... write resumed>) = 1 [pid 5229] <... write resumed>) = 2 [pid 5228] <... write resumed>) = 2 [pid 5076] getdents64(3, [pid 5232] write(3, "1000", 4 [pid 5231] write(3, "\x32\x00", 2 [pid 5230] write(3, "\x32\x00", 2 [pid 5229] exit_group(0 [pid 5228] exit_group(0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5232] <... write resumed>) = 4 [pid 5231] <... write resumed>) = 2 [pid 5228] <... exit_group resumed>) = ? [pid 5076] close(3 [pid 5232] close(3 [pid 5231] exit_group(0 [pid 5230] <... write resumed>) = 2 [pid 5229] <... exit_group resumed>) = ? [pid 5232] <... close resumed>) = 0 [pid 5231] <... exit_group resumed>) = ? [pid 5232] symlink("/dev/binderfs", "./binderfs" [pid 5231] +++ exited with 0 +++ [pid 5230] exit_group(0 [pid 5229] +++ exited with 0 +++ [pid 5228] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5232] <... symlink resumed>) = 0 [pid 5230] <... exit_group resumed>) = ? [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] rmdir("./24" [pid 5232] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... madvise resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5232] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5230] +++ exited with 0 +++ [pid 5080] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... rmdir resumed>) = 0 [pid 5232] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./25", 0777 [pid 5232] <... write resumed>) = 1 [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] write(3, "\x32\x00", 2 [pid 5081] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5232] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] exit_group(0 [pid 5081] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5232] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] fstat(3, [pid 5232] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5080] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5233 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] getdents64(3, [pid 5080] lstat("./24/binderfs", [pid 5079] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] unlink("./24/binderfs" [pid 5079] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5233 attached [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./26/binderfs", [pid 5233] chdir("./25" [pid 5081] lstat("./25/binderfs", [pid 5080] getdents64(3, [pid 5079] lstat("./24/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5233] <... chdir resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./26/binderfs" [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] unlink("./25/binderfs" [pid 5080] close(3 [pid 5079] unlink("./24/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5075] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] <... prctl resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5233] setpgid(0, 0 [pid 5081] getdents64(3, [pid 5080] rmdir("./24" [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5233] <... setpgid resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] close(3 [pid 5080] mkdir("./25", 0777 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] fstat(3, [pid 5233] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] close(3 [pid 5077] rmdir("./26" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5233] write(3, "1000", 4 [pid 5081] rmdir("./25" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5233] <... write resumed>) = 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] rmdir("./24" [pid 5077] mkdir("./27", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5233] close(3 [pid 5081] mkdir("./26", 0777 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5234 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5234 attached [pid 5233] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] mkdir("./25", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5233] symlink("/dev/binderfs", "./binderfs" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5075] lstat("./23/binderfs", ./strace-static-x86_64: Process 5236 attached [pid 5234] chdir("./25" [pid 5233] <... symlink resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5235 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5233] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5236 [pid 5075] unlink("./23/binderfs" [pid 5233] <... madvise resumed>) = 0 [pid 5234] <... chdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5237 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] getdents64(3, [pid 5236] chdir("./26" [pid 5234] <... prctl resumed>) = 0 [pid 5233] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5234] setpgid(0, 0 [pid 5233] write(3, "1", 1 [pid 5075] close(3./strace-static-x86_64: Process 5237 attached ./strace-static-x86_64: Process 5235 attached [pid 5236] <... chdir resumed>) = 0 [pid 5234] <... setpgid resumed>) = 0 [pid 5233] <... write resumed>) = 1 [pid 5075] <... close resumed>) = 0 [pid 5237] chdir("./25" [pid 5235] chdir("./27" [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] write(3, "\x32\x00", 2 [pid 5075] rmdir("./23" [pid 5237] <... chdir resumed>) = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5235] <... chdir resumed>) = 0 [pid 5234] <... openat resumed>) = 3 [pid 5233] <... write resumed>) = 2 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... prctl resumed>) = 0 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5234] write(3, "1000", 4 [pid 5233] exit_group(0 [pid 5075] <... rmdir resumed>) = 0 [pid 5237] <... prctl resumed>) = 0 [pid 5236] setpgid(0, 0 [pid 5235] <... prctl resumed>) = 0 [pid 5234] <... write resumed>) = 4 [pid 5233] <... exit_group resumed>) = ? [pid 5075] mkdir("./24", 0777 [pid 5237] setpgid(0, 0 [pid 5236] <... setpgid resumed>) = 0 [pid 5235] setpgid(0, 0 [pid 5234] close(3 [pid 5233] +++ exited with 0 +++ [pid 5237] <... setpgid resumed>) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] <... setpgid resumed>) = 0 [pid 5234] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... mkdir resumed>) = 0 [pid 5237] <... openat resumed>) = 3 [pid 5234] symlink("/dev/binderfs", "./binderfs" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5234] <... symlink resumed>) = 0 [pid 5237] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5234] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5238 [pid 5237] <... madvise resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY./strace-static-x86_64: Process 5238 attached ) = 3 [pid 5235] <... openat resumed>) = 3 [pid 5234] <... madvise resumed>) = 0 [pid 5076] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] chdir("./24" [pid 5237] write(3, "1", 1 [pid 5236] <... openat resumed>) = 3 [pid 5235] write(3, "1000", 4 [pid 5234] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5238] <... chdir resumed>) = 0 [pid 5237] <... write resumed>) = 1 [pid 5076] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5237] write(3, "\x32\x00", 2 [pid 5236] write(3, "1000", 4 [pid 5235] <... write resumed>) = 4 [pid 5234] <... openat resumed>) = 3 [pid 5238] <... prctl resumed>) = 0 [pid 5237] <... write resumed>) = 2 [pid 5234] write(3, "1", 1 [pid 5235] close(3 [pid 5236] <... write resumed>) = 4 [pid 5076] <... openat resumed>) = 3 [pid 5238] setpgid(0, 0 [pid 5237] exit_group(0 [pid 5236] close(3 [pid 5235] <... close resumed>) = 0 [pid 5234] <... write resumed>) = 1 [pid 5076] fstat(3, [pid 5238] <... setpgid resumed>) = 0 [pid 5237] <... exit_group resumed>) = ? [pid 5236] <... close resumed>) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs" [pid 5234] write(3, "\x32\x00", 2 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] +++ exited with 0 +++ [pid 5236] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5238] <... openat resumed>) = 3 [pid 5238] write(3, "1000", 4) = 4 [pid 5238] close(3) = 0 [pid 5238] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5238] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5238] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5238] write(3, "1", 1 [pid 5235] <... symlink resumed>) = 0 [pid 5235] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5235] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5235] write(3, "1", 1 [pid 5236] <... symlink resumed>) = 0 [pid 5236] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5236] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5236] write(3, "1", 1 [pid 5076] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5076] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./25/binderfs") = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./25") = 0 [pid 5079] mkdir("./26", 0777) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] lstat("./25/binderfs", [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] chdir("./26") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 syzkaller login: [ 76.922019][ T5234] [ 76.924696][ T5234] ============================= [ 76.929814][ T5234] WARNING: suspicious RCU usage [ 76.936678][ T5234] 6.2.0-rc7-syzkaller-00018-g0983f6bf2bfc #0 Not tainted [ 76.945004][ T5234] ----------------------------- [ 76.950398][ T5234] lib/maple_tree.c:852 suspicious rcu_dereference_check() usage! [ 76.959481][ T5234] [ 76.959481][ T5234] other info that might help us debug this: [ 76.959481][ T5234] [pid 5239] <... openat resumed>) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5239] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5239] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] unlink("./25/binderfs" [pid 5239] <... openat resumed>) = 3 [pid 5239] write(3, "1", 1 [pid 5076] <... unlink resumed>) = 0 [pid 5076] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./25") = 0 [pid 5076] mkdir("./26", 0777) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5240 ./strace-static-x86_64: Process 5240 attached [pid 5240] chdir("./26") = 0 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5240] setpgid(0, 0) = 0 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5240] write(3, "1000", 4) = 4 [pid 5240] close(3) = 0 [pid 5240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5240] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5240] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [ 76.971157][ T5234] [ 76.971157][ T5234] rcu_scheduler_active = 2, debug_locks = 1 [ 76.980508][ T5234] 5 locks held by syz-executor286/5234: [ 76.986934][ T5234] #0: ffff88802bf42460 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 [ 76.997121][ T5234] #1: ffff888027820c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x285/0x600 [ 77.007791][ T5234] #2: ffff888144cd33a8 (kn->active#47){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2a9/0x600 [ 77.018991][ T5234] #3: ffffffff8c8f60e8 (ksm_thread_mutex){+.+.}-{3:3}, at: run_store+0xd5/0xa30 [ 77.028959][ T5234] #4: ffff8880189758d8 (&mm->mmap_lock){++++}-{3:3}, at: run_store+0x2a9/0xa30 [ 77.038585][ T5234] [ 77.038585][ T5234] stack backtrace: [ 77.044944][ T5234] CPU: 1 PID: 5234 Comm: syz-executor286 Not tainted 6.2.0-rc7-syzkaller-00018-g0983f6bf2bfc #0 [ 77.055425][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 77.065520][ T5234] Call Trace: [ 77.068842][ T5234] [ 77.071819][ T5234] dump_stack_lvl+0xd1/0x138 [ 77.076496][ T5234] mas_walk+0x491/0x6c0 [ 77.080825][ T5234] mas_find+0x34a/0xd10 [ 77.085030][ T5234] ? rwsem_down_read_slowpath+0xb20/0xb20 [ 77.090835][ T5234] ? sysfs_file_ops+0x1c0/0x1c0 [ 77.095762][ T5234] run_store+0x2e7/0xa30 [ 77.100093][ T5234] ? merge_across_nodes_store+0x340/0x340 [ 77.106166][ T5234] ? merge_across_nodes_store+0x340/0x340 [ 77.111969][ T5234] ? sysfs_file_ops+0x1c0/0x1c0 [ 77.116995][ T5234] kobj_attr_store+0x54/0x80 [ 77.121641][ T5234] ? kobj_attr_show+0x70/0x70 [ 77.126359][ T5234] sysfs_kf_write+0x114/0x170 [ 77.131124][ T5234] kernfs_fop_write_iter+0x3f1/0x600 [ 77.136490][ T5234] vfs_write+0x9ed/0xdd0 [ 77.140789][ T5234] ? kernel_write+0x630/0x630 [ 77.145535][ T5234] ? find_held_lock+0x2d/0x110 [ 77.150363][ T5234] ? lock_downgrade+0x6e0/0x6e0 [ 77.155297][ T5234] ? __fget_light+0x20a/0x270 [ 77.160037][ T5234] ksys_write+0x12b/0x250 [ 77.164430][ T5234] ? __ia32_sys_read+0xb0/0xb0 [ 77.169251][ T5234] ? lockdep_hardirqs_on+0x7d/0x100 [ 77.174510][ T5234] ? _raw_spin_unlock_irq+0x2e/0x50 [ 77.179855][ T5234] ? ptrace_notify+0xfe/0x140 [ 77.185033][ T5234] do_syscall_64+0x39/0xb0 [ 77.189518][ T5234] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 77.195503][ T5234] RIP: 0033:0x7fd6122a35e9 [ 77.200060][ T5234] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 5240] write(3, "1", 1 [pid 5238] <... write resumed>) = 1 [pid 5235] <... write resumed>) = 1 [pid 5236] <... write resumed>) = 1 [pid 5238] write(3, "\x32\x00", 2 [pid 5236] write(3, "\x32\x00", 2 [pid 5235] write(3, "\x32\x00", 2 [pid 5234] <... write resumed>) = 2 [pid 5234] exit_group(0) = ? [pid 5234] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 77.219901][ T5234] RSP: 002b:00007ffef52db1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.228382][ T5234] RAX: ffffffffffffffda RBX: 0000000000012bbd RCX: 00007fd6122a35e9 [ 77.236394][ T5234] RDX: 0000000000000002 RSI: 0000000020000000 RDI: 0000000000000003 [ 77.244399][ T5234] RBP: 0000000000000000 R08: 00007ffef52db1d0 R09: 00007ffef52db1d0 [ 77.252424][ T5234] R10: 00007ffef52db1d0 R11: 0000000000000246 R12: 00007ffef52db1cc [ 77.260450][ T5234] R13: 00007ffef52db200 R14: 00007ffef52db1e0 R15: 0000000000000019 [ 77.268488][ T5234] [pid 5080] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./25/binderfs") = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./25") = 0 [pid 5080] mkdir("./26", 0777) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5240] <... write resumed>) = 1 [pid 5239] <... write resumed>) = 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5241 [pid 5240] write(3, "\x32\x00", 2 [pid 5239] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5241 attached [pid 5240] <... write resumed>) = 2 [pid 5239] <... write resumed>) = 2 [pid 5238] <... write resumed>) = 2 [pid 5235] <... write resumed>) = 2 [pid 5236] <... write resumed>) = 2 [pid 5239] exit_group(0 [pid 5240] exit_group(0 [pid 5238] exit_group(0 [pid 5240] <... exit_group resumed>) = ? [pid 5238] <... exit_group resumed>) = ? [pid 5235] exit_group(0 [pid 5239] <... exit_group resumed>) = ? [pid 5235] <... exit_group resumed>) = ? [pid 5240] +++ exited with 0 +++ [pid 5238] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5235] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5239] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5077] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5079] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5076] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] lstat("./26/binderfs", [pid 5075] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./26/binderfs" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5075] lstat("./24/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./27/binderfs", [pid 5076] getdents64(3, [pid 5236] exit_group(0 [pid 5079] lstat("./26/binderfs", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5236] <... exit_group resumed>) = ? [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./27/binderfs" [pid 5076] close(3 [pid 5075] unlink("./24/binderfs" [pid 5241] chdir("./26" [pid 5079] unlink("./26/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5079] getdents64(3, [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] rmdir("./26" [pid 5075] close(3 [pid 5241] <... chdir resumed>) = 0 [pid 5079] close(3 [pid 5077] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] mkdir("./27", 0777 [pid 5075] rmdir("./24" [pid 5079] rmdir("./26" [pid 5077] rmdir("./27" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5241] <... prctl resumed>) = 0 [pid 5077] mkdir("./28", 0777 [pid 5079] mkdir("./27", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] mkdir("./25", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5241] setpgid(0, 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached [pid 5242] chdir("./27") = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5245 attached ./strace-static-x86_64: Process 5244 attached ./strace-static-x86_64: Process 5243 attached [pid 5241] <... setpgid resumed>) = 0 [pid 5236] +++ exited with 0 +++ [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5243 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5242 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5245 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5244 [pid 5242] <... prctl resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5242] setpgid(0, 0 [pid 5241] <... openat resumed>) = 3 [pid 5081] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5242] <... setpgid resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5241] write(3, "1000", 4 [pid 5245] chdir("./25" [pid 5243] chdir("./28" [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5241] <... write resumed>) = 4 [pid 5245] <... chdir resumed>) = 0 [pid 5244] chdir("./27" [pid 5243] <... chdir resumed>) = 0 [pid 5242] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] write(3, "1000", 4 [pid 5081] fstat(3, [pid 5244] <... chdir resumed>) = 0 [pid 5243] <... prctl resumed>) = 0 [pid 5242] <... write resumed>) = 4 [pid 5241] close(3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5243] setpgid(0, 0 [pid 5242] close(3 [pid 5241] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5244] <... prctl resumed>) = 0 [pid 5243] <... setpgid resumed>) = 0 [pid 5242] <... close resumed>) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5244] setpgid(0, 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5242] symlink("/dev/binderfs", "./binderfs" [pid 5241] <... symlink resumed>) = 0 [pid 5081] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5244] <... setpgid resumed>) = 0 [pid 5242] <... symlink resumed>) = 0 [pid 5241] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5245] <... prctl resumed>) = 0 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] <... openat resumed>) = 3 [pid 5242] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5241] <... madvise resumed>) = 0 [pid 5081] lstat("./26/binderfs", [pid 5245] setpgid(0, 0 [pid 5244] <... openat resumed>) = 3 [pid 5243] write(3, "1000", 4 [pid 5242] <... madvise resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5245] <... setpgid resumed>) = 0 [pid 5244] write(3, "1000", 4 [pid 5243] <... write resumed>) = 4 [pid 5242] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5241] <... openat resumed>) = 3 [pid 5081] unlink("./26/binderfs" [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5244] <... write resumed>) = 4 [pid 5243] close(3 [pid 5242] <... openat resumed>) = 3 [pid 5241] write(3, "1", 1 [pid 5245] <... openat resumed>) = 3 [pid 5244] close(3 [pid 5243] <... close resumed>) = 0 [pid 5242] write(3, "1", 1 [pid 5241] <... write resumed>) = 1 [pid 5081] <... unlink resumed>) = 0 [pid 5245] write(3, "1000", 4 [pid 5244] <... close resumed>) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs" [pid 5241] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5245] <... write resumed>) = 4 [pid 5244] symlink("/dev/binderfs", "./binderfs" [pid 5243] <... symlink resumed>) = 0 [pid 5242] <... write resumed>) = 1 [pid 5241] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5245] close(3 [pid 5244] <... symlink resumed>) = 0 [pid 5243] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5242] write(3, "\x32\x00", 2 [pid 5241] exit_group(0 [pid 5081] close(3 [pid 5245] <... close resumed>) = 0 [pid 5244] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5243] <... madvise resumed>) = 0 [pid 5242] <... write resumed>) = 2 [pid 5241] <... exit_group resumed>) = ? [pid 5081] <... close resumed>) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs" [pid 5244] <... madvise resumed>) = 0 [pid 5243] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5242] exit_group(0 [pid 5241] +++ exited with 0 +++ [pid 5081] rmdir("./26" [pid 5245] <... symlink resumed>) = 0 [pid 5244] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5245] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5244] <... openat resumed>) = 3 [pid 5243] <... openat resumed>) = 3 [pid 5242] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5245] <... madvise resumed>) = 0 [pid 5244] write(3, "1", 1 [pid 5081] mkdir("./27", 0777 [pid 5245] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5244] <... write resumed>) = 1 [pid 5245] <... openat resumed>) = 3 [pid 5244] write(3, "\x32\x00", 2 [pid 5243] write(3, "1", 1 [pid 5242] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5245] write(3, "1", 1 [pid 5244] <... write resumed>) = 2 [pid 5243] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5245] <... write resumed>) = 1 [pid 5244] exit_group(0 [pid 5243] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5245] write(3, "\x32\x00", 2 [pid 5244] <... exit_group resumed>) = ? [pid 5080] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5246 attached [pid 5245] <... write resumed>) = 2 [pid 5244] +++ exited with 0 +++ [pid 5243] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5246] chdir("./27" [pid 5245] exit_group(0 [pid 5243] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5246 [pid 5080] fstat(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5246] <... chdir resumed>) = 0 [pid 5245] <... exit_group resumed>) = ? [pid 5243] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5245] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5076] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] <... prctl resumed>) = 0 [pid 5243] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5246] setpgid(0, 0 [pid 5080] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5246] <... setpgid resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... openat resumed>) = 3 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] lstat("./26/binderfs", [pid 5079] <... openat resumed>) = 3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] fstat(3, [pid 5246] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5246] write(3, "1000", 4 [pid 5080] unlink("./26/binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] <... write resumed>) = 4 [pid 5080] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5246] close(3 [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5246] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5246] symlink("/dev/binderfs", "./binderfs" [pid 5080] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] lstat("./27/binderfs", [pid 5075] fstat(3, [pid 5246] <... symlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] lstat("./27/binderfs", [pid 5077] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5246] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] rmdir("./26" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./27/binderfs" [pid 5075] getdents64(3, [pid 5246] <... madvise resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] unlink("./27/binderfs" [pid 5077] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5246] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] mkdir("./27", 0777 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5075] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5077] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5246] write(3, "1", 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5075] lstat("./25/binderfs", [pid 5246] <... write resumed>) = 1 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] close(3 [pid 5077] lstat("./28/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5246] write(3, "\x32\x00", 2 [pid 5079] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./27" [pid 5075] unlink("./25/binderfs" [pid 5079] rmdir("./27" [pid 5077] unlink("./28/binderfs" [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5246] <... write resumed>) = 2 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5247 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] mkdir("./28", 0777 [pid 5075] getdents64(3, [pid 5246] exit_group(0 [pid 5079] mkdir("./28", 0777 [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5246] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3./strace-static-x86_64: Process 5247 attached [pid 5246] +++ exited with 0 +++ [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3 [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5249 attached ./strace-static-x86_64: Process 5248 attached [pid 5247] chdir("./27" [pid 5077] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5248 [pid 5075] rmdir("./25" [pid 5247] <... chdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5249 [pid 5077] rmdir("./28" [pid 5075] <... rmdir resumed>) = 0 [pid 5248] chdir("./28" [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5075] mkdir("./26", 0777 [pid 5247] <... prctl resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] mkdir("./29", 0777 [pid 5075] <... mkdir resumed>) = 0 [pid 5248] <... chdir resumed>) = 0 [pid 5249] chdir("./28" [pid 5247] setpgid(0, 0 [pid 5081] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5250 attached [pid 5249] <... chdir resumed>) = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached [pid 5250] chdir("./26" [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5248] <... prctl resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] fstat(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5250 [pid 5250] <... chdir resumed>) = 0 [pid 5249] <... prctl resumed>) = 0 [pid 5248] setpgid(0, 0 [pid 5247] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5251 [pid 5247] write(3, "1000", 4) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5247] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5249] setpgid(0, 0 [pid 5248] <... setpgid resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5250] <... prctl resumed>) = 0 [pid 5249] <... setpgid resumed>) = 0 [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5247] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5250] setpgid(0, 0 [pid 5247] write(3, "1", 1 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] <... openat resumed>) = 3 [pid 5247] <... write resumed>) = 1 [pid 5081] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5250] <... setpgid resumed>) = 0 [pid 5251] chdir("./29" [pid 5249] <... openat resumed>) = 3 [pid 5248] write(3, "1000", 4 [pid 5247] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... chdir resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5249] write(3, "1000", 4 [pid 5248] <... write resumed>) = 4 [pid 5247] <... write resumed>) = 2 [pid 5081] lstat("./27/binderfs", [pid 5250] <... openat resumed>) = 3 [pid 5249] <... write resumed>) = 4 [pid 5248] close(3 [pid 5247] exit_group(0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5250] write(3, "1000", 4 [pid 5249] close(3 [pid 5248] <... close resumed>) = 0 [pid 5247] <... exit_group resumed>) = ? [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] unlink("./27/binderfs" [pid 5251] <... prctl resumed>) = 0 [pid 5250] <... write resumed>) = 4 [pid 5249] <... close resumed>) = 0 [pid 5248] symlink("/dev/binderfs", "./binderfs" [pid 5247] +++ exited with 0 +++ [pid 5249] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5248] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5250] close(3 [pid 5251] setpgid(0, 0 [pid 5249] <... symlink resumed>) = 0 [pid 5248] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5250] <... close resumed>) = 0 [pid 5249] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5248] <... madvise resumed>) = 0 [pid 5249] <... madvise resumed>) = 0 [pid 5080] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5249] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5250] symlink("/dev/binderfs", "./binderfs" [pid 5251] <... setpgid resumed>) = 0 [pid 5249] <... openat resumed>) = 3 [pid 5248] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] <... symlink resumed>) = 0 [pid 5249] write(3, "1", 1 [pid 5081] rmdir("./27" [pid 5080] <... openat resumed>) = 3 [pid 5250] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5249] <... write resumed>) = 1 [pid 5248] <... write resumed>) = 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5250] <... madvise resumed>) = 0 [pid 5249] write(3, "\x32\x00", 2 [pid 5248] write(3, "\x32\x00", 2 [pid 5081] mkdir("./28", 0777 [pid 5080] fstat(3, [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5250] write(3, "1", 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] getdents64(3, ./strace-static-x86_64: Process 5252 attached [pid 5251] write(3, "1000", 4 [pid 5250] <... write resumed>) = 1 [pid 5249] <... write resumed>) = 2 [pid 5248] <... write resumed>) = 2 [pid 5250] write(3, "\x32\x00", 2 [pid 5248] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5252 [pid 5252] chdir("./28" [pid 5251] <... write resumed>) = 4 [pid 5249] exit_group(0 [pid 5248] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5252] <... chdir resumed>) = 0 [pid 5251] close(3 [pid 5250] <... write resumed>) = 2 [pid 5249] <... exit_group resumed>) = ? [pid 5248] +++ exited with 0 +++ [pid 5080] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... close resumed>) = 0 [pid 5250] exit_group(0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5250] <... exit_group resumed>) = ? [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5252] <... prctl resumed>) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs" [pid 5250] +++ exited with 0 +++ [pid 5249] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... restart_syscall resumed>) = 0 [pid 5252] setpgid(0, 0) = 0 [pid 5251] <... symlink resumed>) = 0 [pid 5080] lstat("./27/binderfs", [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] <... openat resumed>) = 3 [pid 5251] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] write(3, "1000", 4 [pid 5251] <... madvise resumed>) = 0 [pid 5080] unlink("./27/binderfs" [pid 5076] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] <... write resumed>) = 4 [pid 5251] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5252] close(3 [pid 5251] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5075] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] <... close resumed>) = 0 [pid 5251] write(3, "1", 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] symlink("/dev/binderfs", "./binderfs" [pid 5251] <... write resumed>) = 1 [pid 5080] close(3 [pid 5079] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] <... symlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] write(3, "\x32\x00", 2 [pid 5252] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] rmdir("./27" [pid 5079] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] <... write resumed>) = 2 [pid 5079] lstat("./28/binderfs", [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5252] <... madvise resumed>) = 0 [pid 5251] exit_group(0 [pid 5080] mkdir("./28", 0777 [pid 5079] unlink("./28/binderfs" [pid 5252] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5251] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5252] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, [pid 5076] lstat("./28/binderfs", [pid 5075] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5252] write(3, "1", 1 [pid 5079] close(3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5252] <... write resumed>) = 1 [pid 5079] <... close resumed>) = 0 [pid 5076] unlink("./28/binderfs" [pid 5075] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./28" [pid 5252] write(3, "\x32\x00", 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./29", 0777) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached [pid 5252] <... write resumed>) = 2 [pid 5251] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5253 [pid 5076] getdents64(3, [pid 5075] lstat("./26/binderfs", [pid 5252] exit_group(0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5254 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5252] <... exit_group resumed>) = ? [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5253 attached ) = -1 EINVAL (Invalid argument) [pid 5252] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5075] unlink("./26/binderfs" [pid 5253] chdir("./28" [pid 5077] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5253] <... chdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] fstat(3, [pid 5076] rmdir("./28" [pid 5075] <... unlink resumed>) = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5253] <... prctl resumed>) = 0 [pid 5077] getdents64(3, [pid 5253] setpgid(0, 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5253] <... setpgid resumed>) = 0 [pid 5077] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./29", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5081] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./29/binderfs", [pid 5253] write(3, "1000", 4 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5253] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./29/binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5254] chdir("./29" [pid 5253] close(3 [pid 5081] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5253] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5254] <... chdir resumed>) = 0 [pid 5253] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5077] close(3 [pid 5075] rmdir("./26" [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5255 [pid 5253] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5077] rmdir("./29" [pid 5075] <... rmdir resumed>) = 0 [pid 5254] <... prctl resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] mkdir("./27", 0777./strace-static-x86_64: Process 5255 attached [pid 5254] setpgid(0, 0 [pid 5253] <... openat resumed>) = 3 [pid 5081] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./30", 0777 [pid 5255] chdir("./29" [pid 5254] <... setpgid resumed>) = 0 [pid 5253] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5255] <... chdir resumed>) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] <... write resumed>) = 1 [pid 5081] lstat("./28/binderfs", [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5254] <... openat resumed>) = 3 [pid 5253] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5256 attached [pid 5255] <... prctl resumed>) = 0 [pid 5254] write(3, "1000", 4 [pid 5253] <... write resumed>) = 2 [pid 5081] unlink("./28/binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5256 [pid 5255] setpgid(0, 0 [pid 5254] <... write resumed>) = 4 [pid 5253] exit_group(0 [pid 5255] <... setpgid resumed>) = 0 [pid 5254] close(3 [pid 5253] <... exit_group resumed>) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5257 [pid 5256] chdir("./30" [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] <... close resumed>) = 0 [pid 5253] +++ exited with 0 +++ [pid 5081] getdents64(3, ./strace-static-x86_64: Process 5257 attached [pid 5256] <... chdir resumed>) = 0 [pid 5255] <... openat resumed>) = 3 [pid 5254] symlink("/dev/binderfs", "./binderfs" [pid 5257] chdir("./27" [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] write(3, "1000", 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5257] <... chdir resumed>) = 0 [pid 5256] <... prctl resumed>) = 0 [pid 5255] <... write resumed>) = 4 [pid 5254] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] setpgid(0, 0 [pid 5255] close(3 [pid 5254] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5257] <... prctl resumed>) = 0 [pid 5256] <... setpgid resumed>) = 0 [pid 5255] <... close resumed>) = 0 [pid 5254] <... madvise resumed>) = 0 [pid 5081] rmdir("./28" [pid 5257] setpgid(0, 0 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] symlink("/dev/binderfs", "./binderfs" [pid 5254] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... restart_syscall resumed>) = 0 [pid 5257] <... setpgid resumed>) = 0 [pid 5256] <... openat resumed>) = 3 [pid 5255] <... symlink resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5254] <... openat resumed>) = 3 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5256] write(3, "1000", 4 [pid 5255] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5254] write(3, "1", 1 [pid 5081] mkdir("./29", 0777 [pid 5257] <... openat resumed>) = 3 [pid 5256] <... write resumed>) = 4 [pid 5255] <... madvise resumed>) = 0 [pid 5254] <... write resumed>) = 1 [pid 5257] write(3, "1000", 4 [pid 5256] close(3 [pid 5255] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... mkdir resumed>) = 0 [pid 5254] write(3, "\x32\x00", 2 [pid 5080] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5257] <... write resumed>) = 4 [pid 5256] <... close resumed>) = 0 [pid 5255] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5257] close(3 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5255] write(3, "1", 1 [pid 5257] <... close resumed>) = 0 [pid 5256] <... symlink resumed>) = 0 [pid 5255] <... write resumed>) = 1 [pid 5254] <... write resumed>) = 2 [pid 5080] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5257] symlink("/dev/binderfs", "./binderfs" [pid 5256] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5255] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5258 ./strace-static-x86_64: Process 5258 attached [pid 5257] <... symlink resumed>) = 0 [pid 5256] <... madvise resumed>) = 0 [pid 5255] <... write resumed>) = 2 [pid 5254] exit_group(0 [pid 5080] fstat(3, [pid 5257] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5256] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5255] exit_group(0 [pid 5254] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5258] chdir("./29" [pid 5257] <... madvise resumed>) = 0 [pid 5256] <... openat resumed>) = 3 [pid 5255] <... exit_group resumed>) = ? [pid 5258] <... chdir resumed>) = 0 [pid 5257] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5256] write(3, "1", 1 [pid 5255] +++ exited with 0 +++ [pid 5254] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... openat resumed>) = 3 [pid 5256] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5258] <... prctl resumed>) = 0 [pid 5257] write(3, "1", 1 [pid 5256] write(3, "\x32\x00", 2 [pid 5080] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] setpgid(0, 0 [pid 5257] <... write resumed>) = 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] <... setpgid resumed>) = 0 [pid 5257] write(3, "\x32\x00", 2 [pid 5256] <... write resumed>) = 2 [pid 5080] lstat("./28/binderfs", [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... write resumed>) = 2 [pid 5256] exit_group(0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5258] <... openat resumed>) = 3 [pid 5257] exit_group(0 [pid 5256] <... exit_group resumed>) = ? [pid 5080] unlink("./28/binderfs" [pid 5258] write(3, "1000", 4 [pid 5257] <... exit_group resumed>) = ? [pid 5256] +++ exited with 0 +++ [pid 5079] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] <... write resumed>) = 4 [pid 5257] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] close(3 [pid 5080] getdents64(3, [pid 5079] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5258] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] symlink("/dev/binderfs", "./binderfs" [pid 5080] close(3 [pid 5079] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5258] <... symlink resumed>) = 0 [pid 5080] rmdir("./28" [pid 5079] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] fstat(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5079] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] <... madvise resumed>) = 0 [pid 5080] mkdir("./29", 0777 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5258] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] lstat("./29/binderfs", [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5258] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] unlink("./29/binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5075] fstat(3, [pid 5258] write(3, "1", 1 [pid 5079] <... unlink resumed>) = 0 [pid 5077] lstat("./30/binderfs", [pid 5258] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5258] write(3, "\x32\x00", 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] unlink("./30/binderfs" [pid 5076] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5079] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5259 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] lstat("./29/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5258] <... write resumed>) = 2 [pid 5079] rmdir("./29" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5258] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] close(3 [pid 5076] unlink("./29/binderfs" [pid 5075] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] <... exit_group resumed>) = ? [pid 5079] mkdir("./30", 0777 [pid 5077] <... close resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] rmdir("./30" [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] lstat("./27/binderfs", [pid 5258] +++ exited with 0 +++ ./strace-static-x86_64: Process 5260 attached ./strace-static-x86_64: Process 5259 attached [pid 5077] mkdir("./31", 0777 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5260] chdir("./30" [pid 5259] chdir("./29" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5260 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5259] <... chdir resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 ./strace-static-x86_64: Process 5261 attached [pid 5260] <... chdir resumed>) = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... restart_syscall resumed>) = 0 [pid 5075] unlink("./27/binderfs" [pid 5259] <... prctl resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5261 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] rmdir("./29" [pid 5075] <... unlink resumed>) = 0 [pid 5259] write(3, "1000", 4) = 4 [pid 5259] close(3) = 0 [pid 5259] symlink("/dev/binderfs", "./binderfs" [pid 5081] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] <... prctl resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5260] setpgid(0, 0 [pid 5259] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./30", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5260] <... setpgid resumed>) = 0 [pid 5259] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5259] <... madvise resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5261] chdir("./31" [pid 5260] <... openat resumed>) = 3 [pid 5259] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] fstat(3, [pid 5261] <... chdir resumed>) = 0 [pid 5260] write(3, "1000", 4 [pid 5259] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5260] <... write resumed>) = 4 [pid 5259] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5259] <... write resumed>) = 1 [pid 5259] write(3, "\x32\x00", 2 [pid 5075] rmdir("./27" [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5260] close(3 [pid 5259] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5262 [pid 5260] <... close resumed>) = 0 [pid 5259] exit_group(0 [pid 5081] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5260] symlink("/dev/binderfs", "./binderfs" [pid 5259] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5262 attached [pid 5259] +++ exited with 0 +++ [pid 5081] lstat("./29/binderfs", [pid 5260] <... symlink resumed>) = 0 [pid 5075] mkdir("./28", 0777 [pid 5262] chdir("./30" [pid 5260] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5262] <... chdir resumed>) = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] unlink("./29/binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5262] <... prctl resumed>) = 0 [pid 5260] <... madvise resumed>) = 0 [pid 5262] setpgid(0, 0) = 0 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5260] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... unlink resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5262] <... openat resumed>) = 3 [pid 5261] <... prctl resumed>) = 0 [pid 5260] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5262] write(3, "1000", 4) = 4 [pid 5262] close(3) = 0 [pid 5262] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5261] setpgid(0, 0 [pid 5260] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5263 [pid 5262] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5261] <... setpgid resumed>) = 0 [pid 5260] <... write resumed>) = 1 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5263 attached [pid 5262] <... madvise resumed>) = 0 [pid 5260] write(3, "\x32\x00", 2 [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5263] chdir("./28" [pid 5262] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] rmdir("./29" [pid 5080] <... openat resumed>) = 3 [pid 5263] <... chdir resumed>) = 0 [pid 5262] <... openat resumed>) = 3 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5262] write(3, "1", 1 [pid 5263] <... prctl resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] fstat(3, [pid 5263] setpgid(0, 0 [pid 5081] mkdir("./30", 0777 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5263] <... setpgid resumed>) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5263] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5263] write(3, "1000", 4 [pid 5261] <... openat resumed>) = 3 [pid 5080] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5263] <... write resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5263] close(3 [pid 5080] lstat("./29/binderfs", [pid 5263] <... close resumed>) = 0 [pid 5261] write(3, "1000", 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs" [pid 5261] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5264 [pid 5080] unlink("./29/binderfs" [pid 5263] <... symlink resumed>) = 0 [pid 5261] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5263] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5261] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5263] <... madvise resumed>) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5264 attached [pid 5263] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] close(3 [pid 5264] chdir("./30" [pid 5263] <... openat resumed>) = 3 [pid 5261] <... symlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5264] <... chdir resumed>) = 0 [pid 5263] write(3, "1", 1 [pid 5261] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] rmdir("./29" [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5263] <... write resumed>) = 1 [pid 5262] <... write resumed>) = 1 [pid 5261] <... madvise resumed>) = 0 [pid 5260] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5264] <... prctl resumed>) = 0 [pid 5263] write(3, "\x32\x00", 2 [pid 5262] write(3, "\x32\x00", 2 [pid 5261] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] mkdir("./30", 0777 [pid 5264] setpgid(0, 0 [pid 5263] <... write resumed>) = 2 [pid 5262] <... write resumed>) = 2 [pid 5261] <... openat resumed>) = 3 [pid 5260] exit_group(0 [pid 5080] <... mkdir resumed>) = 0 [pid 5264] <... setpgid resumed>) = 0 [pid 5263] exit_group(0 [pid 5262] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5265 attached [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5263] <... exit_group resumed>) = ? [pid 5262] <... exit_group resumed>) = ? [pid 5261] write(3, "1", 1 [pid 5260] <... exit_group resumed>) = ? [pid 5265] chdir("./30" [pid 5264] <... openat resumed>) = 3 [pid 5263] +++ exited with 0 +++ [pid 5262] +++ exited with 0 +++ [pid 5261] <... write resumed>) = 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5265 [pid 5264] write(3, "1000", 4) = 4 [pid 5260] +++ exited with 0 +++ [pid 5264] close(3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5265] <... chdir resumed>) = 0 [pid 5264] <... close resumed>) = 0 [pid 5261] write(3, "\x32\x00", 2 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5264] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... restart_syscall resumed>) = 0 [pid 5264] <... symlink resumed>) = 0 [pid 5265] <... prctl resumed>) = 0 [pid 5264] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5261] <... write resumed>) = 2 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5265] setpgid(0, 0 [pid 5264] <... madvise resumed>) = 0 [pid 5261] exit_group(0 [pid 5079] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... setpgid resumed>) = 0 [pid 5264] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5261] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5264] write(3, "1", 1 [pid 5079] <... openat resumed>) = 3 [pid 5264] <... write resumed>) = 1 [pid 5079] fstat(3, [pid 5075] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] write(3, "\x32\x00", 2 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... openat resumed>) = 3 [pid 5264] <... write resumed>) = 2 [pid 5261] +++ exited with 0 +++ [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5265] write(3, "1000", 4 [pid 5264] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5265] <... write resumed>) = 4 [pid 5264] <... exit_group resumed>) = ? [pid 5079] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5265] close(3 [pid 5264] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5265] <... close resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] lstat("./30/binderfs", [pid 5076] fstat(3, [pid 5075] fstat(3, [pid 5265] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5265] <... symlink resumed>) = 0 [pid 5079] unlink("./30/binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5265] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5265] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5265] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5265] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5265] write(3, "1", 1 [pid 5081] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5076] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... write resumed>) = 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./30" [pid 5077] fstat(3, [pid 5075] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] mkdir("./31", 0777 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] lstat("./30/binderfs", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] lstat("./28/binderfs", ./strace-static-x86_64: Process 5266 attached [pid 5265] <... write resumed>) = 2 [pid 5081] lstat("./30/binderfs", [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5265] exit_group(0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5266 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5266] chdir("./31" [pid 5265] <... exit_group resumed>) = ? [pid 5081] unlink("./30/binderfs" [pid 5077] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./30/binderfs" [pid 5075] unlink("./28/binderfs") = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5077] lstat("./31/binderfs", [pid 5076] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] getdents64(3, [pid 5266] <... chdir resumed>) = 0 [pid 5265] +++ exited with 0 +++ [pid 5081] close(3 [pid 5077] unlink("./31/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] rmdir("./30" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... unlink resumed>) = 0 [pid 5076] close(3 [pid 5075] close(3 [pid 5266] <... prctl resumed>) = 0 [pid 5266] setpgid(0, 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5266] <... setpgid resumed>) = 0 [pid 5081] mkdir("./31", 0777 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] rmdir("./30" [pid 5075] rmdir("./28" [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5266] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5266] write(3, "1000", 4) = 4 [pid 5266] close(3) = 0 [pid 5080] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./31", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5266] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5266] <... symlink resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./31" [pid 5076] <... mkdir resumed>) = 0 [pid 5266] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] mkdir("./29", 0777 [pid 5266] <... madvise resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5266] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5266] write(3, "1", 1) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5266] write(3, "\x32\x00", 2) = 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5267 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./32", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5266] exit_group(0 [pid 5080] getdents64(3, ./strace-static-x86_64: Process 5267 attached [pid 5266] <... exit_group resumed>) = ? [pid 5267] chdir("./31" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... mkdir resumed>) = 0 [pid 5267] <... chdir resumed>) = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5266] +++ exited with 0 +++ [pid 5080] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5267] setpgid(0, 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5267] <... setpgid resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5267] <... openat resumed>) = 3 [pid 5080] lstat("./30/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5269 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5268 ./strace-static-x86_64: Process 5269 attached [pid 5267] write(3, "1000", 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5270 [pid 5267] <... write resumed>) = 4 [pid 5080] unlink("./30/binderfs"./strace-static-x86_64: Process 5270 attached [pid 5269] chdir("./31" [pid 5267] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5268 attached [pid 5270] chdir("./32" [pid 5269] <... chdir resumed>) = 0 [pid 5267] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5270] <... chdir resumed>) = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5267] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5269] <... prctl resumed>) = 0 [pid 5268] chdir("./29" [pid 5267] <... symlink resumed>) = 0 [pid 5080] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5270] <... prctl resumed>) = 0 [pid 5269] setpgid(0, 0 [pid 5267] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5268] <... chdir resumed>) = 0 [pid 5270] setpgid(0, 0 [pid 5269] <... setpgid resumed>) = 0 [pid 5267] <... madvise resumed>) = 0 [pid 5080] rmdir("./30" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5270] <... setpgid resumed>) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5267] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] getdents64(3, [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5269] <... openat resumed>) = 3 [pid 5268] <... prctl resumed>) = 0 [pid 5267] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5270] <... openat resumed>) = 3 [pid 5269] write(3, "1000", 4 [pid 5268] setpgid(0, 0 [pid 5267] write(3, "1", 1 [pid 5080] mkdir("./31", 0777 [pid 5079] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5270] write(3, "1000", 4 [pid 5269] <... write resumed>) = 4 [pid 5268] <... setpgid resumed>) = 0 [pid 5267] <... write resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5270] <... write resumed>) = 4 [pid 5269] close(3 [pid 5267] write(3, "\x32\x00", 2 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] lstat("./31/binderfs", [pid 5270] close(3 [pid 5269] <... close resumed>) = 0 [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5267] <... write resumed>) = 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5270] <... close resumed>) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs" [pid 5268] <... openat resumed>) = 3 [pid 5267] exit_group(0 [pid 5079] unlink("./31/binderfs" [pid 5270] symlink("/dev/binderfs", "./binderfs" [pid 5269] <... symlink resumed>) = 0 [pid 5268] write(3, "1000", 4 [pid 5267] <... exit_group resumed>) = ? [pid 5079] <... unlink resumed>) = 0 [pid 5270] <... symlink resumed>) = 0 [pid 5269] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5268] <... write resumed>) = 4 [pid 5267] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5271 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5271 attached [pid 5270] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5269] <... madvise resumed>) = 0 [pid 5268] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5271] chdir("./31" [pid 5270] <... madvise resumed>) = 0 [pid 5269] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5268] <... close resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] close(3 [pid 5271] <... chdir resumed>) = 0 [pid 5270] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5269] <... openat resumed>) = 3 [pid 5268] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5270] <... openat resumed>) = 3 [pid 5269] write(3, "1", 1 [pid 5079] rmdir("./31" [pid 5271] <... prctl resumed>) = 0 [pid 5270] write(3, "1", 1 [pid 5269] <... write resumed>) = 1 [pid 5268] <... symlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5271] setpgid(0, 0 [pid 5270] <... write resumed>) = 1 [pid 5269] write(3, "\x32\x00", 2 [pid 5079] mkdir("./32", 0777 [pid 5271] <... setpgid resumed>) = 0 [pid 5270] write(3, "\x32\x00", 2 [pid 5269] <... write resumed>) = 2 [pid 5268] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... mkdir resumed>) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5270] <... write resumed>) = 2 [pid 5269] exit_group(0 [pid 5268] <... madvise resumed>) = 0 [pid 5081] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5272 attached [pid 5271] <... openat resumed>) = 3 [pid 5270] exit_group(0 [pid 5269] <... exit_group resumed>) = ? [pid 5268] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] write(3, "1000", 4 [pid 5270] <... exit_group resumed>) = ? [pid 5269] +++ exited with 0 +++ [pid 5268] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5272 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5272] chdir("./32" [pid 5271] <... write resumed>) = 4 [pid 5270] +++ exited with 0 +++ [pid 5268] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5271] close(3 [pid 5268] <... write resumed>) = 1 [pid 5271] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5268] write(3, "\x32\x00", 2 [pid 5271] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... symlink resumed>) = 0 [pid 5271] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5271] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5268] <... write resumed>) = 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5076] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5271] write(3, "1", 1) = 1 [pid 5076] <... openat resumed>) = 3 [pid 5272] <... chdir resumed>) = 0 [pid 5271] write(3, "\x32\x00", 2 [pid 5268] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5271] <... write resumed>) = 2 [pid 5268] <... exit_group resumed>) = ? [pid 5081] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5272] <... prctl resumed>) = 0 [pid 5271] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5272] setpgid(0, 0 [pid 5271] <... exit_group resumed>) = ? [pid 5081] lstat("./31/binderfs", [pid 5077] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5272] <... setpgid resumed>) = 0 [pid 5271] +++ exited with 0 +++ [pid 5268] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] unlink("./31/binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5272] <... openat resumed>) = 3 [pid 5272] write(3, "1000", 4 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5272] <... write resumed>) = 4 [pid 5081] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5272] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5076] lstat("./31/binderfs", [pid 5272] <... close resumed>) = 0 [pid 5081] close(3 [pid 5080] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5272] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5272] <... symlink resumed>) = 0 [pid 5081] rmdir("./31" [pid 5080] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] unlink("./31/binderfs" [pid 5272] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5272] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5272] <... openat resumed>) = 3 [pid 5081] mkdir("./32", 0777 [pid 5077] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5080] fstat(3, [pid 5075] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5272] write(3, "1", 1) = 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5272] write(3, "\x32\x00", 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] getdents64(3, [pid 5077] lstat("./32/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5272] <... write resumed>) = 2 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5272] exit_group(0) = ? [pid 5272] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] close(3 [pid 5075] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5273 [pid 5080] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] unlink("./32/binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5080] lstat("./31/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5076] rmdir("./31" [pid 5075] fstat(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5273 attached [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5273] chdir("./32" [pid 5080] unlink("./31/binderfs" [pid 5079] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5273] <... chdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5075] getdents64(3, [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5077] <... close resumed>) = 0 [pid 5076] mkdir("./32", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] rmdir("./32" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... mkdir resumed>) = 0 [pid 5075] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] <... prctl resumed>) = 0 [pid 5273] setpgid(0, 0 [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5273] <... setpgid resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] mkdir("./33", 0777 [pid 5075] lstat("./29/binderfs", ./strace-static-x86_64: Process 5274 attached [pid 5273] <... openat resumed>) = 3 [pid 5080] rmdir("./31" [pid 5079] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] write(3, "1000", 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5273] <... write resumed>) = 4 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5273] close(3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5274 [pid 5274] chdir("./32" [pid 5273] <... close resumed>) = 0 [pid 5080] mkdir("./32", 0777 [pid 5079] lstat("./32/binderfs", [pid 5075] unlink("./29/binderfs" [pid 5273] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5273] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... mkdir resumed>) = 0 [pid 5079] unlink("./32/binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5275 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5275 attached [pid 5274] <... chdir resumed>) = 0 [pid 5273] <... madvise resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5273] <... openat resumed>) = 3 [pid 5275] chdir("./33" [pid 5274] <... prctl resumed>) = 0 [pid 5273] write(3, "1", 1 [pid 5079] getdents64(3, [pid 5075] close(3 [pid 5275] <... chdir resumed>) = 0 [pid 5274] setpgid(0, 0 [pid 5273] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5273] write(3, "\x32\x00", 2 [pid 5075] <... close resumed>) = 0 [pid 5079] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5276 [pid 5075] rmdir("./29" [pid 5079] <... close resumed>) = 0 ./strace-static-x86_64: Process 5276 attached [pid 5079] rmdir("./32" [pid 5075] <... rmdir resumed>) = 0 [pid 5276] chdir("./32") = 0 [pid 5273] <... write resumed>) = 2 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] mkdir("./30", 0777 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] <... setpgid resumed>) = 0 [pid 5273] exit_group(0 [pid 5079] mkdir("./33", 0777 [pid 5276] setpgid(0, 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5276] <... setpgid resumed>) = 0 [pid 5273] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5275] <... prctl resumed>) = 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5276] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5276] write(3, "1000", 4 [pid 5275] setpgid(0, 0 [pid 5276] <... write resumed>) = 4 [pid 5276] close(3 [pid 5275] <... setpgid resumed>) = 0 [pid 5276] <... close resumed>) = 0 [pid 5276] symlink("/dev/binderfs", "./binderfs" [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5277 attached [pid 5276] <... symlink resumed>) = 0 [pid 5274] <... openat resumed>) = 3 [pid 5273] +++ exited with 0 +++ [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5277 [pid 5276] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5275] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5278 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5277] chdir("./33" [pid 5276] <... madvise resumed>) = 0 [pid 5274] write(3, "1000", 4 [pid 5276] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5275] write(3, "1000", 4 [pid 5274] <... write resumed>) = 4 [pid 5081] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5278 attached [pid 5276] <... openat resumed>) = 3 [pid 5274] close(3 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5275] <... write resumed>) = 4 [pid 5278] chdir("./30" [pid 5276] write(3, "1", 1 [pid 5274] <... close resumed>) = 0 [pid 5275] close(3 [pid 5278] <... chdir resumed>) = 0 [pid 5277] <... chdir resumed>) = 0 [pid 5276] <... write resumed>) = 1 [pid 5274] symlink("/dev/binderfs", "./binderfs" [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5276] write(3, "\x32\x00", 2 [pid 5275] <... close resumed>) = 0 [pid 5278] <... prctl resumed>) = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5276] <... write resumed>) = 2 [pid 5275] symlink("/dev/binderfs", "./binderfs" [pid 5274] <... symlink resumed>) = 0 [pid 5081] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] setpgid(0, 0 [pid 5277] <... prctl resumed>) = 0 [pid 5276] exit_group(0 [pid 5278] <... setpgid resumed>) = 0 [pid 5277] setpgid(0, 0 [pid 5276] <... exit_group resumed>) = ? [pid 5275] <... symlink resumed>) = 0 [pid 5274] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5277] <... setpgid resumed>) = 0 [pid 5276] +++ exited with 0 +++ [pid 5275] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5274] <... madvise resumed>) = 0 [pid 5278] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5278] write(3, "1000", 4 [pid 5274] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5275] <... madvise resumed>) = 0 [pid 5278] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5278] close(3 [pid 5274] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5278] <... close resumed>) = 0 [pid 5275] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5278] symlink("/dev/binderfs", "./binderfs" [pid 5274] write(3, "1", 1 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5278] <... symlink resumed>) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5275] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5274] <... write resumed>) = 1 [pid 5278] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5278] <... madvise resumed>) = 0 [pid 5277] <... openat resumed>) = 3 [pid 5275] write(3, "1", 1 [pid 5274] write(3, "\x32\x00", 2 [pid 5278] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5277] write(3, "1000", 4 [pid 5275] <... write resumed>) = 1 [pid 5081] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] <... openat resumed>) = 3 [pid 5080] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5278] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5278] <... write resumed>) = 1 [pid 5275] write(3, "\x32\x00", 2 [pid 5274] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5278] write(3, "\x32\x00", 2 [pid 5277] <... write resumed>) = 4 [pid 5080] <... openat resumed>) = 3 [pid 5277] close(3 [pid 5081] lstat("./32/binderfs", [pid 5080] fstat(3, [pid 5277] <... close resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5277] symlink("/dev/binderfs", "./binderfs" [pid 5081] unlink("./32/binderfs" [pid 5080] getdents64(3, [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5277] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5277] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5274] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5277] <... madvise resumed>) = 0 [pid 5274] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5080] lstat("./32/binderfs", [pid 5277] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5277] <... openat resumed>) = 3 [pid 5081] rmdir("./32" [pid 5080] unlink("./32/binderfs" [pid 5277] write(3, "1", 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5081] mkdir("./33", 0777 [pid 5080] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./32") = 0 [pid 5080] mkdir("./33", 0777) = 0 [pid 5274] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5279 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5280 ./strace-static-x86_64: Process 5280 attached [pid 5278] <... write resumed>) = 2 [pid 5277] <... write resumed>) = 1 [pid 5275] <... write resumed>) = 2 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5280] chdir("./33" [pid 5278] exit_group(0 [pid 5277] write(3, "\x32\x00", 2 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5278] <... exit_group resumed>) = ? [pid 5275] exit_group(0 [pid 5278] +++ exited with 0 +++ ./strace-static-x86_64: Process 5279 attached [pid 5279] chdir("./33") = 0 [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5279] setpgid(0, 0) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5277] <... write resumed>) = 2 [pid 5275] <... exit_group resumed>) = ? [pid 5076] <... restart_syscall resumed>) = 0 [pid 5279] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5279] write(3, "1000", 4 [pid 5277] exit_group(0 [pid 5279] <... write resumed>) = 4 [pid 5277] <... exit_group resumed>) = ? [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5279] close(3 [pid 5076] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... restart_syscall resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5279] <... close resumed>) = 0 [pid 5279] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5279] <... symlink resumed>) = 0 [pid 5076] fstat(3, [pid 5075] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5279] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5279] <... madvise resumed>) = 0 [pid 5275] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5280] <... chdir resumed>) = 0 [pid 5279] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5277] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5280] <... prctl resumed>) = 0 [pid 5279] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] setpgid(0, 0 [pid 5279] write(3, "1", 1 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5280] <... setpgid resumed>) = 0 [pid 5279] <... write resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5279] write(3, "\x32\x00", 2 [pid 5076] lstat("./32/binderfs", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./32/binderfs" [pid 5079] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5280] <... openat resumed>) = 3 [pid 5279] <... write resumed>) = 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5280] write(3, "1000", 4 [pid 5279] exit_group(0 [pid 5079] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] fstat(3, [pid 5075] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] <... write resumed>) = 4 [pid 5279] <... exit_group resumed>) = ? [pid 5079] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5280] close(3 [pid 5079] fstat(3, [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5280] <... close resumed>) = 0 [pid 5279] +++ exited with 0 +++ [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] lstat("./30/binderfs", [pid 5280] symlink("/dev/binderfs", "./binderfs" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] getdents64(3, [pid 5077] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] <... symlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5280] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./33/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5075] unlink("./30/binderfs" [pid 5081] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./32" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./33/binderfs", [pid 5077] unlink("./33/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5280] <... madvise resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] unlink("./33/binderfs" [pid 5077] getdents64(3, [pid 5075] getdents64(3, [pid 5280] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] mkdir("./33", 0777 [pid 5280] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] getdents64(3, [pid 5077] rmdir("./33" [pid 5076] <... mkdir resumed>) = 0 [pid 5280] write(3, "1", 1 [pid 5075] close(3 [pid 5081] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5280] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] close(3 [pid 5077] mkdir("./34", 0777 [pid 5075] <... close resumed>) = 0 [pid 5081] lstat("./33/binderfs", [pid 5079] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5280] write(3, "\x32\x00", 2 [pid 5075] rmdir("./30" [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] rmdir("./33" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5281 [pid 5081] unlink("./33/binderfs" [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5280] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5079] mkdir("./34", 0777 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5282 [pid 5075] mkdir("./31", 0777 [pid 5081] getdents64(3, ./strace-static-x86_64: Process 5281 attached 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5281] chdir("./33" [pid 5081] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5281] <... chdir resumed>) = 0 [pid 5280] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] rmdir("./33" [pid 5281] <... prctl resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5281] setpgid(0, 0 [pid 5280] <... exit_group resumed>) = ? [pid 5081] mkdir("./34", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5283 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5282 attached [pid 5281] <... setpgid resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5282] chdir("./34" [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5282] <... chdir resumed>) = 0 [pid 5281] <... openat resumed>) = 3 [pid 5280] +++ exited with 0 +++ [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5281] write(3, "1000", 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5285 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5284 [pid 5282] <... prctl resumed>) = 0 [pid 5281] <... write resumed>) = 4 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5284 attached ./strace-static-x86_64: Process 5283 attached [pid 5282] setpgid(0, 0 [pid 5281] close(3 [pid 5080] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5285 attached [pid 5284] chdir("./31" [pid 5283] chdir("./34" [pid 5282] <... setpgid resumed>) = 0 [pid 5281] <... close resumed>) = 0 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5285] chdir("./34" [pid 5284] <... chdir resumed>) = 0 [pid 5283] <... chdir resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5281] symlink("/dev/binderfs", "./binderfs" [pid 5285] <... chdir resumed>) = 0 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5282] <... openat resumed>) = 3 [pid 5281] <... symlink resumed>) = 0 [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5284] <... prctl resumed>) = 0 [pid 5283] <... prctl resumed>) = 0 [pid 5282] write(3, "1000", 4 [pid 5281] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5285] <... prctl resumed>) = 0 [pid 5284] setpgid(0, 0 [pid 5283] setpgid(0, 0 [pid 5282] <... write resumed>) = 4 [pid 5281] <... madvise resumed>) = 0 [pid 5080] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] setpgid(0, 0 [pid 5284] <... setpgid resumed>) = 0 [pid 5283] <... setpgid resumed>) = 0 [pid 5282] close(3 [pid 5281] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] <... setpgid resumed>) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] <... close resumed>) = 0 [pid 5281] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5284] <... openat resumed>) = 3 [pid 5283] <... openat resumed>) = 3 [pid 5282] symlink("/dev/binderfs", "./binderfs" [pid 5281] write(3, "1", 1 [pid 5080] <... openat resumed>) = 3 [pid 5285] <... openat resumed>) = 3 [pid 5284] write(3, "1000", 4 [pid 5283] write(3, "1000", 4 [pid 5282] <... symlink resumed>) = 0 [pid 5281] <... write resumed>) = 1 [pid 5080] fstat(3, [pid 5285] write(3, "1000", 4 [pid 5284] <... write resumed>) = 4 [pid 5283] <... write resumed>) = 4 [pid 5282] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5281] write(3, "\x32\x00", 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5285] <... write resumed>) = 4 [pid 5284] close(3 [pid 5283] close(3 [pid 5282] <... madvise resumed>) = 0 [pid 5281] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5285] close(3 [pid 5284] <... close resumed>) = 0 [pid 5283] <... close resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5281] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5285] <... close resumed>) = 0 [pid 5284] symlink("/dev/binderfs", "./binderfs" [pid 5283] symlink("/dev/binderfs", "./binderfs" [pid 5282] <... openat resumed>) = 3 [pid 5281] <... exit_group resumed>) = ? [pid 5080] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] symlink("/dev/binderfs", "./binderfs" [pid 5284] <... symlink resumed>) = 0 [pid 5283] <... symlink resumed>) = 0 [pid 5282] write(3, "1", 1 [pid 5281] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] <... symlink resumed>) = 0 [pid 5284] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5283] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5282] <... write resumed>) = 1 [pid 5285] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5284] <... madvise resumed>) = 0 [pid 5282] write(3, "\x32\x00", 2 [pid 5080] lstat("./33/binderfs", [pid 5283] <... madvise resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5285] <... madvise resumed>) = 0 [pid 5284] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5282] <... write resumed>) = 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5285] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5284] <... openat resumed>) = 3 [pid 5283] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5282] exit_group(0 [pid 5080] unlink("./33/binderfs" [pid 5285] <... openat resumed>) = 3 [pid 5284] write(3, "1", 1 [pid 5283] <... openat resumed>) = 3 [pid 5282] <... exit_group resumed>) = ? [pid 5285] write(3, "1", 1 [pid 5284] <... write resumed>) = 1 [pid 5283] write(3, "1", 1 [pid 5282] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5285] <... write resumed>) = 1 [pid 5284] write(3, "\x32\x00", 2 [pid 5283] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] write(3, "\x32\x00", 2 [pid 5284] <... write resumed>) = 2 [pid 5283] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] <... write resumed>) = 2 [pid 5284] exit_group(0 [pid 5283] <... write resumed>) = 2 [pid 5080] close(3 [pid 5285] exit_group(0 [pid 5284] <... exit_group resumed>) = ? [pid 5283] exit_group(0 [pid 5077] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5285] <... exit_group resumed>) = ? [pid 5284] +++ exited with 0 +++ [pid 5283] <... exit_group resumed>) = ? [pid 5080] rmdir("./33" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] fstat(3, [pid 5283] +++ exited with 0 +++ [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] mkdir("./34", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./34/binderfs", [pid 5081] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] unlink("./34/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] fstat(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5286 [pid 5079] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5076] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5077] rmdir("./34" [pid 5075] <... openat resumed>) = 3 [pid 5081] lstat("./34/binderfs", [pid 5079] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, ./strace-static-x86_64: Process 5286 attached [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./35", 0777 [pid 5076] lstat("./33/binderfs", [pid 5286] chdir("./34" [pid 5081] unlink("./34/binderfs" [pid 5079] getdents64(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5286] <... chdir resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] unlink("./33/binderfs" [pid 5075] getdents64(3, [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(3, [pid 5079] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] <... prctl resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5287 [pid 5076] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5287 attached [pid 5286] setpgid(0, 0 [pid 5081] close(3 [pid 5079] lstat("./34/binderfs", [pid 5076] getdents64(3, [pid 5075] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5287] chdir("./35" [pid 5286] <... setpgid resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5287] <... chdir resumed>) = 0 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] rmdir("./34" [pid 5079] unlink("./34/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5287] <... prctl resumed>) = 0 [pid 5286] write(3, "1000", 4 [pid 5081] mkdir("./35", 0777 [pid 5079] <... unlink resumed>) = 0 [pid 5076] close(3 [pid 5075] lstat("./31/binderfs", [pid 5287] setpgid(0, 0 [pid 5286] <... write resumed>) = 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5287] <... setpgid resumed>) = 0 [pid 5286] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] <... close resumed>) = 0 [pid 5079] close(3 [pid 5076] rmdir("./33" [pid 5075] unlink("./31/binderfs"./strace-static-x86_64: Process 5288 attached [pid 5287] <... openat resumed>) = 3 [pid 5286] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5288 [pid 5079] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5288] chdir("./35" [pid 5287] write(3, "1000", 4 [pid 5286] <... symlink resumed>) = 0 [pid 5079] rmdir("./34" [pid 5075] <... unlink resumed>) = 0 [pid 5288] <... chdir resumed>) = 0 [pid 5287] <... write resumed>) = 4 [pid 5286] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] mkdir("./34", 0777 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5287] close(3 [pid 5286] <... madvise resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5288] <... prctl resumed>) = 0 [pid 5287] <... close resumed>) = 0 [pid 5286] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] mkdir("./35", 0777 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5288] setpgid(0, 0 [pid 5287] symlink("/dev/binderfs", "./binderfs" [pid 5286] <... openat resumed>) = 3 [pid 5288] <... setpgid resumed>) = 0 [pid 5287] <... symlink resumed>) = 0 [pid 5286] write(3, "1", 1 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5286] <... write resumed>) = 1 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5287] <... madvise resumed>) = 0 [pid 5286] write(3, "\x32\x00", 2 [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5290 attached ./strace-static-x86_64: Process 5289 attached [pid 5288] <... openat resumed>) = 3 [pid 5287] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5286] <... write resumed>) = 2 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5289 [pid 5075] rmdir("./31" [pid 5289] chdir("./34" [pid 5288] write(3, "1000", 4 [pid 5287] <... openat resumed>) = 3 [pid 5286] exit_group(0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5290 [pid 5289] <... chdir resumed>) = 0 [pid 5287] write(3, "1", 1 [pid 5286] <... exit_group resumed>) = ? [pid 5075] <... rmdir resumed>) = 0 [pid 5290] chdir("./35" [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5288] <... write resumed>) = 4 [pid 5287] <... write resumed>) = 1 [pid 5286] +++ exited with 0 +++ [pid 5075] mkdir("./32", 0777 [pid 5289] <... prctl resumed>) = 0 [pid 5288] close(3 [pid 5287] write(3, "\x32\x00", 2 [pid 5290] <... chdir resumed>) = 0 [pid 5289] setpgid(0, 0 [pid 5288] <... close resumed>) = 0 [pid 5287] <... write resumed>) = 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... mkdir resumed>) = 0 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5289] <... setpgid resumed>) = 0 [pid 5288] symlink("/dev/binderfs", "./binderfs" [pid 5287] exit_group(0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] <... exit_group resumed>) = ? [pid 5290] <... prctl resumed>) = 0 [pid 5289] <... openat resumed>) = 3 [pid 5288] <... symlink resumed>) = 0 [pid 5287] +++ exited with 0 +++ [pid 5290] setpgid(0, 0 [pid 5289] write(3, "1000", 4 [pid 5288] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5291 [pid 5290] <... setpgid resumed>) = 0 [pid 5289] <... write resumed>) = 4 [pid 5288] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5289] close(3 [pid 5288] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5291 attached [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5289] <... close resumed>) = 0 [pid 5288] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5077] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] chdir("./32" [pid 5289] symlink("/dev/binderfs", "./binderfs" [pid 5288] write(3, "1", 1 [pid 5080] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] <... openat resumed>) = 3 [pid 5291] <... chdir resumed>) = 0 [pid 5290] write(3, "1000", 4 [pid 5289] <... symlink resumed>) = 0 [pid 5288] <... write resumed>) = 1 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5290] <... write resumed>) = 4 [pid 5289] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5288] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5291] <... prctl resumed>) = 0 [pid 5290] close(3 [pid 5289] <... madvise resumed>) = 0 [pid 5077] fstat(3, [pid 5291] setpgid(0, 0 [pid 5289] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5291] <... setpgid resumed>) = 0 [pid 5289] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5289] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5291] <... openat resumed>) = 3 [pid 5289] <... write resumed>) = 1 [pid 5288] <... write resumed>) = 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] write(3, "1000", 4 [pid 5290] <... close resumed>) = 0 [pid 5289] write(3, "\x32\x00", 2 [pid 5288] exit_group(0 [pid 5080] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5291] <... write resumed>) = 4 [pid 5290] symlink("/dev/binderfs", "./binderfs" [pid 5289] <... write resumed>) = 2 [pid 5288] <... exit_group resumed>) = ? [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./35/binderfs", [pid 5291] close(3 [pid 5290] <... symlink resumed>) = 0 [pid 5289] exit_group(0 [pid 5080] lstat("./34/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5291] <... close resumed>) = 0 [pid 5290] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5289] <... exit_group resumed>) = ? [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./35/binderfs" [pid 5291] symlink("/dev/binderfs", "./binderfs" [pid 5290] <... madvise resumed>) = 0 [pid 5288] +++ exited with 0 +++ [pid 5080] unlink("./34/binderfs" [pid 5291] <... symlink resumed>) = 0 [pid 5290] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5289] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5291] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5291] <... madvise resumed>) = 0 [pid 5290] <... openat resumed>) = 3 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5291] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5290] write(3, "1", 1 [pid 5077] close(3 [pid 5291] <... openat resumed>) = 3 [pid 5290] <... write resumed>) = 1 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] close(3 [pid 5077] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5291] write(3, "1", 1 [pid 5290] write(3, "\x32\x00", 2 [pid 5080] <... close resumed>) = 0 [pid 5077] rmdir("./35" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5291] <... write resumed>) = 1 [pid 5077] <... rmdir resumed>) = 0 [pid 5291] write(3, "\x32\x00", 2 [pid 5080] rmdir("./34" [pid 5077] mkdir("./36", 0777 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5081] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] mkdir("./35", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5291] <... write resumed>) = 2 [pid 5290] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... mkdir resumed>) = 0 [pid 5291] exit_group(0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5292 [pid 5081] <... openat resumed>) = 3 [pid 5291] <... exit_group resumed>) = ? [pid 5081] fstat(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5290] exit_group(0./strace-static-x86_64: Process 5292 attached [pid 5291] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5293 attached [pid 5290] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5293 [pid 5076] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5292] chdir("./36" [pid 5293] chdir("./35" [pid 5290] +++ exited with 0 +++ [pid 5292] <... chdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5075] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] <... chdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] lstat("./35/binderfs", [pid 5079] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5293] <... prctl resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5293] setpgid(0, 0 [pid 5081] unlink("./35/binderfs" [pid 5079] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] fstat(3, [pid 5293] <... setpgid resumed>) = 0 [pid 5076] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] lstat("./34/binderfs", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5293] write(3, "1000", 4 [pid 5081] getdents64(3, [pid 5079] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5293] <... write resumed>) = 4 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./34/binderfs" [pid 5075] getdents64(3, [pid 5293] close(3 [pid 5292] <... prctl resumed>) = 0 [pid 5081] close(3 [pid 5079] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5293] <... close resumed>) = 0 [pid 5292] setpgid(0, 0 [pid 5081] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5293] symlink("/dev/binderfs", "./binderfs" [pid 5292] <... setpgid resumed>) = 0 [pid 5081] rmdir("./35" [pid 5079] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5293] <... symlink resumed>) = 0 [pid 5076] close(3 [pid 5293] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5293] <... madvise resumed>) = 0 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] mkdir("./36", 0777 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./34" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... mkdir resumed>) = 0 [pid 5079] lstat("./35/binderfs", [pid 5076] <... rmdir resumed>) = 0 [pid 5075] lstat("./32/binderfs", [pid 5293] <... openat resumed>) = 3 [pid 5292] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] mkdir("./35", 0777 [pid 5293] write(3, "1", 1 [pid 5292] write(3, "1000", 4 [pid 5079] unlink("./35/binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5293] <... write resumed>) = 1 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5293] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5294 [pid 5075] unlink("./32/binderfs" [pid 5292] <... write resumed>) = 4 ./strace-static-x86_64: Process 5295 attached [pid 5293] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5295 [pid 5293] exit_group(0 [pid 5292] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5293] <... exit_group resumed>) = ? [pid 5292] <... close resumed>) = 0 [pid 5079] close(3 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5294 attached [pid 5295] chdir("./35" [pid 5293] +++ exited with 0 +++ [pid 5292] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5295] <... chdir resumed>) = 0 [pid 5294] chdir("./36" [pid 5292] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] rmdir("./35" [pid 5075] close(3 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5294] <... chdir resumed>) = 0 [pid 5292] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5295] <... prctl resumed>) = 0 [pid 5294] <... prctl resumed>) = 0 [pid 5292] <... madvise resumed>) = 0 [pid 5079] mkdir("./36", 0777 [pid 5075] rmdir("./32" [pid 5295] setpgid(0, 0 [pid 5294] setpgid(0, 0 [pid 5292] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5294] <... setpgid resumed>) = 0 [pid 5080] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5295] <... setpgid resumed>) = 0 [pid 5294] <... openat resumed>) = 3 [pid 5292] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5294] write(3, "1000", 4 [pid 5292] write(3, "1", 1 [pid 5080] <... openat resumed>) = 3 [pid 5075] mkdir("./33", 0777 [pid 5294] <... write resumed>) = 4 [pid 5080] fstat(3, [pid 5294] close(3 [pid 5292] <... write resumed>) = 1 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5294] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5292] write(3, "\x32\x00", 2 [pid 5075] <... mkdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5296 [pid 5295] <... openat resumed>) = 3 [pid 5294] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5294] <... symlink resumed>) = 0 [pid 5080] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5296 attached [pid 5294] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5296] chdir("./36" [pid 5295] write(3, "1000", 4 [pid 5294] <... madvise resumed>) = 0 [pid 5292] <... write resumed>) = 2 [pid 5080] lstat("./35/binderfs", [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5296] <... chdir resumed>) = 0 [pid 5295] <... write resumed>) = 4 [pid 5294] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5292] exit_group(0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5294] <... openat resumed>) = 3 [pid 5080] unlink("./35/binderfs" [pid 5296] <... prctl resumed>) = 0 [pid 5295] close(3 [pid 5294] write(3, "1", 1 [pid 5292] <... exit_group resumed>) = ? [pid 5080] <... unlink resumed>) = 0 [pid 5296] setpgid(0, 0 [pid 5295] <... close resumed>) = 0 [pid 5294] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5296] <... setpgid resumed>) = 0 [pid 5294] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5297 attached [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] symlink("/dev/binderfs", "./binderfs" [pid 5294] <... write resumed>) = 2 [pid 5292] +++ exited with 0 +++ [pid 5080] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5297 [pid 5297] chdir("./33" [pid 5296] <... openat resumed>) = 3 [pid 5295] <... symlink resumed>) = 0 [pid 5294] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5297] <... chdir resumed>) = 0 [pid 5296] write(3, "1000", 4 [pid 5295] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5294] <... exit_group resumed>) = ? [pid 5080] rmdir("./35" [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] <... write resumed>) = 4 [pid 5295] <... madvise resumed>) = 0 [pid 5294] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5297] <... prctl resumed>) = 0 [pid 5296] close(3 [pid 5295] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] mkdir("./36", 0777 [pid 5297] setpgid(0, 0 [pid 5296] <... close resumed>) = 0 [pid 5295] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5297] <... setpgid resumed>) = 0 [pid 5296] symlink("/dev/binderfs", "./binderfs" [pid 5295] write(3, "1", 1 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5298 attached [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] <... symlink resumed>) = 0 [pid 5295] <... write resumed>) = 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5297] <... openat resumed>) = 3 [pid 5296] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5295] write(3, "\x32\x00", 2 [pid 5081] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5298 [pid 5297] write(3, "1000", 4 [pid 5296] <... madvise resumed>) = 0 [pid 5297] <... write resumed>) = 4 [pid 5296] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5297] close(3 [pid 5296] <... openat resumed>) = 3 [pid 5297] <... close resumed>) = 0 [pid 5296] write(3, "1", 1 [pid 5297] symlink("/dev/binderfs", "./binderfs" [pid 5296] <... write resumed>) = 1 [pid 5295] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5297] <... symlink resumed>) = 0 [pid 5296] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5298] chdir("./36" [pid 5297] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5296] <... write resumed>) = 2 [pid 5295] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] <... madvise resumed>) = 0 [pid 5296] exit_group(0 [pid 5295] <... exit_group resumed>) = ? [pid 5081] fstat(3, [pid 5077] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5296] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5298] <... chdir resumed>) = 0 [pid 5297] <... openat resumed>) = 3 [pid 5296] +++ exited with 0 +++ [pid 5295] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5297] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] fstat(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] <... write resumed>) = 1 [pid 5081] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5298] setpgid(0, 0 [pid 5297] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] getdents64(3, [pid 5298] <... setpgid resumed>) = 0 [pid 5081] lstat("./36/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] <... openat resumed>) = 3 [pid 5297] <... write resumed>) = 2 [pid 5081] unlink("./36/binderfs" [pid 5076] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] write(3, "1000", 4 [pid 5297] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] <... write resumed>) = 4 [pid 5297] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./36/binderfs", [pid 5076] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5298] close(3 [pid 5297] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5298] <... close resumed>) = 0 [pid 5081] close(3 [pid 5079] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5298] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... close resumed>) = 0 [pid 5077] unlink("./36/binderfs" [pid 5076] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] rmdir("./36" [pid 5079] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] fstat(3, [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5298] <... symlink resumed>) = 0 [pid 5081] mkdir("./37", 0777 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... mkdir resumed>) = 0 [pid 5298] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] getdents64(3, [pid 5077] close(3 [pid 5076] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] <... madvise resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5298] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5076] lstat("./35/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./36" [pid 5075] <... openat resumed>) = 3 [pid 5298] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5299 [pid 5079] lstat("./36/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] fstat(3, [pid 5298] write(3, "1", 1 [pid 5079] unlink("./36/binderfs" [pid 5077] mkdir("./37", 0777 [pid 5076] unlink("./35/binderfs" [pid 5298] <... write resumed>) = 1 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5299 attached [pid 5298] write(3, "\x32\x00", 2 [pid 5079] getdents64(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5299] chdir("./37" [pid 5079] close(3 [pid 5076] close(3 [pid 5299] <... chdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5300 attached [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5298] <... write resumed>) = 2 [pid 5079] rmdir("./36" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5300 [pid 5076] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5299] <... prctl resumed>) = 0 [pid 5298] exit_group(0 [pid 5299] setpgid(0, 0) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] rmdir("./35" [pid 5298] <... exit_group resumed>) = ? [pid 5075] lstat("./33/binderfs", [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] mkdir("./37", 0777 [pid 5299] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5299] write(3, "1000", 4) = 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] unlink("./33/binderfs" [pid 5299] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./36", 0777 [pid 5299] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5299] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] getdents64(3, [pid 5299] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5301 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5299] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3 [pid 5299] <... openat resumed>) = 3 [pid 5299] write(3, "1", 1./strace-static-x86_64: Process 5301 attached ) = 1 [pid 5301] chdir("./37" [pid 5299] write(3, "\x32\x00", 2 [pid 5075] <... close resumed>) = 0 [pid 5301] <... chdir resumed>) = 0 [pid 5300] chdir("./37" [pid 5299] <... write resumed>) = 2 [pid 5298] +++ exited with 0 +++ [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5302 [pid 5075] rmdir("./33" [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] <... chdir resumed>) = 0 [pid 5299] exit_group(0./strace-static-x86_64: Process 5302 attached [pid 5301] <... prctl resumed>) = 0 [pid 5299] <... exit_group resumed>) = ? [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5302] chdir("./36" [pid 5301] setpgid(0, 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5299] +++ exited with 0 +++ [pid 5080] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5302] <... chdir resumed>) = 0 [pid 5301] <... setpgid resumed>) = 0 [pid 5300] <... prctl resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./34", 0777 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] setpgid(0, 0 [pid 5080] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5302] <... prctl resumed>) = 0 [pid 5301] <... openat resumed>) = 3 [pid 5300] <... setpgid resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5302] setpgid(0, 0 [pid 5301] write(3, "1000", 4 [pid 5081] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5302] <... setpgid resumed>) = 0 [pid 5301] <... write resumed>) = 4 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5301] close(3 [pid 5081] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] getdents64(3, [pid 5300] <... openat resumed>) = 3 [pid 5302] <... openat resumed>) = 3 [pid 5301] <... close resumed>) = 0 [pid 5300] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5303 [pid 5302] write(3, "1000", 4 [pid 5301] symlink("/dev/binderfs", "./binderfs" [pid 5300] <... write resumed>) = 4 [pid 5081] fstat(3, [pid 5080] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5302] <... write resumed>) = 4 [pid 5301] <... symlink resumed>) = 0 [pid 5300] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5303 attached [pid 5302] close(3 [pid 5301] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5300] <... close resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] lstat("./36/binderfs", [pid 5303] chdir("./34" [pid 5302] <... close resumed>) = 0 [pid 5301] <... madvise resumed>) = 0 [pid 5300] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5303] <... chdir resumed>) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs" [pid 5301] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] unlink("./36/binderfs" [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5302] <... symlink resumed>) = 0 [pid 5301] <... openat resumed>) = 3 [pid 5300] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... unlink resumed>) = 0 [pid 5303] <... prctl resumed>) = 0 [pid 5302] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5301] write(3, "1", 1 [pid 5300] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5303] setpgid(0, 0 [pid 5302] <... madvise resumed>) = 0 [pid 5301] <... write resumed>) = 1 [pid 5300] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5303] <... setpgid resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5301] write(3, "\x32\x00", 2 [pid 5300] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./37/binderfs", [pid 5080] close(3 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5302] <... openat resumed>) = 3 [pid 5301] <... write resumed>) = 2 [pid 5300] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5303] <... openat resumed>) = 3 [pid 5302] write(3, "1", 1 [pid 5301] exit_group(0 [pid 5300] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] rmdir("./36" [pid 5303] write(3, "1000", 4 [pid 5302] <... write resumed>) = 1 [pid 5301] <... exit_group resumed>) = ? [pid 5300] <... write resumed>) = 1 [pid 5081] unlink("./37/binderfs" [pid 5080] <... rmdir resumed>) = 0 [pid 5303] <... write resumed>) = 4 [pid 5302] write(3, "\x32\x00", 2 [pid 5301] +++ exited with 0 +++ [pid 5300] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] mkdir("./37", 0777 [pid 5303] close(3 [pid 5302] <... write resumed>) = 2 [pid 5300] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5303] <... close resumed>) = 0 [pid 5302] exit_group(0 [pid 5300] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5304 attached [pid 5303] symlink("/dev/binderfs", "./binderfs" [pid 5302] <... exit_group resumed>) = ? [pid 5300] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5303] <... symlink resumed>) = 0 [pid 5302] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5304 [pid 5303] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5303] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5300] +++ exited with 0 +++ [pid 5081] close(3 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5303] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5303] write(3, "1", 1 [pid 5081] rmdir("./37" [pid 5304] chdir("./37" [pid 5303] <... write resumed>) = 1 [pid 5303] write(3, "\x32\x00", 2 [pid 5304] <... chdir resumed>) = 0 [pid 5303] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5303] exit_group(0 [pid 5081] mkdir("./38", 0777 [pid 5079] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5303] <... exit_group resumed>) = ? [pid 5076] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5303] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5304] <... prctl resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5304] setpgid(0, 0 [pid 5076] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5075] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5304] <... setpgid resumed>) = 0 [pid 5079] fstat(3, [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5304] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5305 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5304] write(3, "1000", 4 [pid 5079] getdents64(3, [pid 5077] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5304] <... write resumed>) = 4 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5304] close(3 [pid 5079] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] fstat(3, [pid 5304] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./37/binderfs", [pid 5076] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] symlink("/dev/binderfs", "./binderfs" [pid 5079] lstat("./37/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5304] <... symlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./37/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5304] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] unlink("./37/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./36/binderfs", [pid 5304] <... madvise resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5304] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5305 attached [pid 5304] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5077] close(3 [pid 5076] unlink("./36/binderfs" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] write(3, "1", 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5305] chdir("./38" [pid 5304] <... write resumed>) = 1 [pid 5079] close(3 [pid 5077] rmdir("./37" [pid 5076] <... unlink resumed>) = 0 [pid 5075] lstat("./34/binderfs", [pid 5305] <... chdir resumed>) = 0 [pid 5304] write(3, "\x32\x00", 2 [pid 5079] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5304] <... write resumed>) = 2 [pid 5079] rmdir("./37" [pid 5077] mkdir("./38", 0777 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5305] <... prctl resumed>) = 0 [pid 5304] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5305] setpgid(0, 0 [pid 5304] <... exit_group resumed>) = ? [pid 5079] mkdir("./38", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5075] unlink("./34/binderfs" [pid 5305] <... setpgid resumed>) = 0 [pid 5304] +++ exited with 0 +++ [pid 5079] <... mkdir resumed>) = 0 [pid 5076] rmdir("./36"./strace-static-x86_64: Process 5306 attached [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5306 [pid 5075] <... unlink resumed>) = 0 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5080] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] mkdir("./37", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5307 ./strace-static-x86_64: Process 5307 attached [pid 5305] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5305] write(3, "1000", 4 [pid 5080] lstat("./37/binderfs", [pid 5306] chdir("./38" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5306] <... chdir resumed>) = 0 [pid 5080] unlink("./37/binderfs"./strace-static-x86_64: Process 5308 attached [pid 5307] chdir("./38" [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5305] <... write resumed>) = 4 [pid 5080] <... unlink resumed>) = 0 [pid 5075] rmdir("./34" [pid 5308] chdir("./37" [pid 5307] <... chdir resumed>) = 0 [pid 5306] <... prctl resumed>) = 0 [pid 5305] close(3 [pid 5080] getdents64(3, [pid 5306] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5306] <... setpgid resumed>) = 0 [pid 5080] close(3 [pid 5308] <... chdir resumed>) = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5308 [pid 5075] <... rmdir resumed>) = 0 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] <... prctl resumed>) = 0 [pid 5306] <... openat resumed>) = 3 [pid 5305] symlink("/dev/binderfs", "./binderfs" [pid 5080] rmdir("./37" [pid 5075] mkdir("./35", 0777 [pid 5308] <... prctl resumed>) = 0 [pid 5307] setpgid(0, 0 [pid 5306] write(3, "1000", 4 [pid 5305] <... symlink resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5306] <... write resumed>) = 4 [pid 5305] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] mkdir("./38", 0777 [pid 5307] <... setpgid resumed>) = 0 [pid 5308] setpgid(0, 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5306] close(3 [pid 5305] <... madvise resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5306] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5305] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5309 attached [pid 5308] <... setpgid resumed>) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5306] symlink("/dev/binderfs", "./binderfs" [pid 5305] <... openat resumed>) = 3 [pid 5306] <... symlink resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5309 [pid 5306] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5306] <... madvise resumed>) = 0 [pid 5307] <... openat resumed>) = 3 [pid 5306] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5305] write(3, "1", 1 [pid 5308] <... openat resumed>) = 3 [pid 5307] write(3, "1000", 4 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5310 ./strace-static-x86_64: Process 5310 attached [pid 5309] chdir("./38" [pid 5308] write(3, "1000", 4 [pid 5307] <... write resumed>) = 4 [pid 5306] <... openat resumed>) = 3 [pid 5305] <... write resumed>) = 1 [pid 5310] chdir("./35" [pid 5308] <... write resumed>) = 4 [pid 5307] close(3 [pid 5306] write(3, "1", 1 [pid 5305] write(3, "\x32\x00", 2 [pid 5310] <... chdir resumed>) = 0 [pid 5308] close(3 [pid 5307] <... close resumed>) = 0 [pid 5306] <... write resumed>) = 1 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5306] write(3, "\x32\x00", 2 [pid 5310] <... prctl resumed>) = 0 [pid 5309] <... chdir resumed>) = 0 [pid 5308] <... close resumed>) = 0 [pid 5307] symlink("/dev/binderfs", "./binderfs" [pid 5310] setpgid(0, 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5308] symlink("/dev/binderfs", "./binderfs" [pid 5310] <... setpgid resumed>) = 0 [pid 5309] <... prctl resumed>) = 0 [pid 5307] <... symlink resumed>) = 0 [pid 5308] <... symlink resumed>) = 0 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] setpgid(0, 0 [pid 5308] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5307] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5306] <... write resumed>) = 2 [pid 5305] <... write resumed>) = 2 [pid 5310] <... openat resumed>) = 3 [pid 5309] <... setpgid resumed>) = 0 [pid 5308] <... madvise resumed>) = 0 [pid 5307] <... madvise resumed>) = 0 [pid 5306] exit_group(0 [pid 5305] exit_group(0 [pid 5310] write(3, "1000", 4 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5307] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5306] <... exit_group resumed>) = ? [pid 5310] <... write resumed>) = 4 [pid 5309] <... openat resumed>) = 3 [pid 5308] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5307] <... openat resumed>) = 3 [pid 5306] +++ exited with 0 +++ [pid 5305] <... exit_group resumed>) = ? [pid 5310] close(3 [pid 5309] write(3, "1000", 4 [pid 5308] <... openat resumed>) = 3 [pid 5310] <... close resumed>) = 0 [pid 5309] <... write resumed>) = 4 [pid 5308] write(3, "1", 1 [pid 5307] write(3, "1", 1 [pid 5310] symlink("/dev/binderfs", "./binderfs" [pid 5309] close(3 [pid 5308] <... write resumed>) = 1 [pid 5307] <... write resumed>) = 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5310] <... symlink resumed>) = 0 [pid 5309] <... close resumed>) = 0 [pid 5308] write(3, "\x32\x00", 2 [pid 5307] write(3, "\x32\x00", 2 [pid 5305] +++ exited with 0 +++ [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5310] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5309] symlink("/dev/binderfs", "./binderfs" [pid 5310] <... madvise resumed>) = 0 [pid 5309] <... symlink resumed>) = 0 [pid 5310] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5309] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5310] <... openat resumed>) = 3 [pid 5309] <... madvise resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... restart_syscall resumed>) = 0 [pid 5310] write(3, "1", 1 [pid 5309] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5309] write(3, "1", 1 [pid 5077] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5310] <... write resumed>) = 1 [pid 5309] <... write resumed>) = 1 [pid 5308] <... write resumed>) = 2 [pid 5307] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] fstat(3, [pid 5310] write(3, "\x32\x00", 2 [pid 5309] write(3, "\x32\x00", 2 [pid 5308] exit_group(0 [pid 5307] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5308] <... exit_group resumed>) = ? [pid 5307] <... exit_group resumed>) = ? [pid 5081] fstat(3, [pid 5077] getdents64(3, [pid 5308] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5307] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./38/binderfs", [pid 5310] <... write resumed>) = 2 [pid 5309] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] exit_group(0 [pid 5309] exit_group(0 [pid 5081] lstat("./38/binderfs", [pid 5077] unlink("./38/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5310] <... exit_group resumed>) = ? [pid 5309] <... exit_group resumed>) = ? [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5310] +++ exited with 0 +++ [pid 5309] +++ exited with 0 +++ [pid 5081] unlink("./38/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] close(3 [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... close resumed>) = 0 [pid 5081] rmdir("./38" [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5075] <... restart_syscall resumed>) = 0 [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5077] rmdir("./38" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] mkdir("./39", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] lstat("./38/binderfs", [pid 5079] lstat("./38/binderfs", [pid 5077] mkdir("./39", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./38/binderfs" [pid 5079] unlink("./38/binderfs" [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] lstat("./37/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5311 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5311 attached [pid 5080] close(3 [pid 5079] close(3 [pid 5311] chdir("./39" [pid 5080] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] unlink("./37/binderfs" [pid 5075] <... openat resumed>) = 3 [pid 5311] <... chdir resumed>) = 0 [pid 5080] rmdir("./38" [pid 5079] rmdir("./38" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5312 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5312 attached [pid 5311] <... prctl resumed>) = 0 [pid 5080] mkdir("./39", 0777 [pid 5079] mkdir("./39", 0777 [pid 5076] getdents64(3, [pid 5312] chdir("./39" [pid 5311] setpgid(0, 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5312] <... chdir resumed>) = 0 [pid 5311] <... setpgid resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] close(3 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5314 attached ./strace-static-x86_64: Process 5313 attached [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5313 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5314 [pid 5311] write(3, "1000", 4) = 4 [pid 5311] close(3) = 0 [pid 5311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5311] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5311] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... close resumed>) = 0 [pid 5312] <... prctl resumed>) = 0 [pid 5311] <... openat resumed>) = 3 [pid 5076] rmdir("./37" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5313] chdir("./39" [pid 5314] chdir("./39" [pid 5312] setpgid(0, 0 [pid 5311] write(3, "1", 1 [pid 5314] <... chdir resumed>) = 0 [pid 5313] <... chdir resumed>) = 0 [pid 5312] <... setpgid resumed>) = 0 [pid 5311] <... write resumed>) = 1 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5311] write(3, "\x32\x00", 2 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5314] <... prctl resumed>) = 0 [pid 5313] <... prctl resumed>) = 0 [pid 5312] <... openat resumed>) = 3 [pid 5311] <... write resumed>) = 2 [pid 5076] mkdir("./38", 0777 [pid 5075] lstat("./35/binderfs", [pid 5314] setpgid(0, 0 [pid 5313] setpgid(0, 0 [pid 5312] write(3, "1000", 4 [pid 5311] exit_group(0 [pid 5314] <... setpgid resumed>) = 0 [pid 5311] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] <... setpgid resumed>) = 0 [pid 5312] <... write resumed>) = 4 [pid 5311] +++ exited with 0 +++ [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5314] <... openat resumed>) = 3 [pid 5312] close(3 [pid 5314] write(3, "1000", 4 [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] unlink("./35/binderfs" [pid 5314] <... write resumed>) = 4 [pid 5314] close(3) = 0 [pid 5312] <... close resumed>) = 0 [pid 5314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5312] symlink("/dev/binderfs", "./binderfs" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5313] <... openat resumed>) = 3 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5315 [pid 5075] <... unlink resumed>) = 0 [pid 5314] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5313] write(3, "1000", 4 [pid 5312] <... symlink resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5315 attached [pid 5314] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5313] <... write resumed>) = 4 [pid 5312] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... restart_syscall resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5315] chdir("./38" [pid 5314] <... openat resumed>) = 3 [pid 5312] <... madvise resumed>) = 0 [pid 5075] close(3 [pid 5315] <... chdir resumed>) = 0 [pid 5314] write(3, "1", 1 [pid 5313] close(3 [pid 5312] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5314] <... write resumed>) = 1 [pid 5313] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5315] <... prctl resumed>) = 0 [pid 5314] write(3, "\x32\x00", 2 [pid 5313] symlink("/dev/binderfs", "./binderfs" [pid 5312] <... openat resumed>) = 3 [pid 5081] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./35" [pid 5315] setpgid(0, 0 [pid 5314] <... write resumed>) = 2 [pid 5313] <... symlink resumed>) = 0 [pid 5315] <... setpgid resumed>) = 0 [pid 5314] exit_group(0 [pid 5312] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5314] <... exit_group resumed>) = ? [pid 5315] <... openat resumed>) = 3 [pid 5314] +++ exited with 0 +++ [pid 5313] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5312] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 [pid 5315] write(3, "1000", 4 [pid 5313] <... madvise resumed>) = 0 [pid 5312] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5075] mkdir("./36", 0777 [pid 5315] <... write resumed>) = 4 [pid 5313] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5315] close(3 [pid 5079] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5315] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5315] symlink("/dev/binderfs", "./binderfs" [pid 5079] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5315] <... symlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5315] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] fstat(3, [pid 5315] <... madvise resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5315] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5313] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5079] getdents64(3, [pid 5315] <... openat resumed>) = 3 [pid 5313] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... mkdir resumed>) = 0 [pid 5315] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5079] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./39/binderfs" [pid 5081] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5316 [pid 5081] lstat("./39/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3 [pid 5081] unlink("./39/binderfs" [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./39"./strace-static-x86_64: Process 5316 attached [pid 5315] <... write resumed>) = 1 [pid 5313] <... write resumed>) = 1 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5316] chdir("./36" [pid 5315] write(3, "\x32\x00", 2 [pid 5313] write(3, "\x32\x00", 2 [pid 5312] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5079] mkdir("./40", 0777 [pid 5316] <... chdir resumed>) = 0 [pid 5315] <... write resumed>) = 2 [pid 5313] <... write resumed>) = 2 [pid 5312] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5315] exit_group(0 [pid 5313] exit_group(0 [pid 5312] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5316] <... prctl resumed>) = 0 [pid 5315] <... exit_group resumed>) = ? [pid 5313] <... exit_group resumed>) = ? [pid 5081] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5316] setpgid(0, 0 [pid 5315] +++ exited with 0 +++ [pid 5313] +++ exited with 0 +++ [pid 5312] +++ exited with 0 +++ [pid 5081] rmdir("./39"./strace-static-x86_64: Process 5317 attached [pid 5316] <... setpgid resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5317 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5317] chdir("./40" [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... rmdir resumed>) = 0 [pid 5317] <... chdir resumed>) = 0 [pid 5316] <... openat resumed>) = 3 [pid 5081] mkdir("./40", 0777 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5316] write(3, "1000", 4 [pid 5080] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] <... prctl resumed>) = 0 [pid 5316] <... write resumed>) = 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5317] setpgid(0, 0 [pid 5316] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5316] <... close resumed>) = 0 [pid 5316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5316] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5317] <... setpgid resumed>) = 0 [pid 5316] <... madvise resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5318 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5316] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5318 attached [pid 5316] write(3, "1", 1 [pid 5080] fstat(3, [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5318] chdir("./40" [pid 5317] <... openat resumed>) = 3 [pid 5316] <... write resumed>) = 1 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5318] <... chdir resumed>) = 0 [pid 5316] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] write(3, "1000", 4 [pid 5316] <... write resumed>) = 2 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5318] <... prctl resumed>) = 0 [pid 5317] <... write resumed>) = 4 [pid 5316] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5318] setpgid(0, 0 [pid 5317] close(3 [pid 5316] <... exit_group resumed>) = ? [pid 5080] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5318] <... setpgid resumed>) = 0 [pid 5317] <... close resumed>) = 0 [pid 5316] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5318] <... openat resumed>) = 3 [pid 5080] lstat("./39/binderfs", [pid 5318] write(3, "1000", 4 [pid 5077] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... write resumed>) = 4 [pid 5317] <... symlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] close(3 [pid 5317] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] unlink("./39/binderfs" [pid 5077] lstat("./39/binderfs", [pid 5076] lstat("./38/binderfs", [pid 5318] <... close resumed>) = 0 [pid 5317] <... madvise resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5318] symlink("/dev/binderfs", "./binderfs" [pid 5317] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... unlink resumed>) = 0 [pid 5077] unlink("./39/binderfs" [pid 5076] unlink("./38/binderfs" [pid 5318] <... symlink resumed>) = 0 [pid 5317] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5318] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5317] write(3, "1", 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5318] <... madvise resumed>) = 0 [pid 5317] <... write resumed>) = 1 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5318] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5317] write(3, "\x32\x00", 2 [pid 5080] <... close resumed>) = 0 [pid 5077] close(3 [pid 5076] close(3 [pid 5075] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5318] write(3, "1", 1 [pid 5077] rmdir("./39" [pid 5076] rmdir("./38" [pid 5318] <... write resumed>) = 1 [pid 5317] <... write resumed>) = 2 [pid 5080] rmdir("./39" [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] write(3, "\x32\x00", 2 [pid 5077] mkdir("./40", 0777 [pid 5076] mkdir("./39", 0777 [pid 5318] <... write resumed>) = 2 [pid 5317] exit_group(0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5318] exit_group(0 [pid 5317] <... exit_group resumed>) = ? [pid 5080] mkdir("./40", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5318] <... exit_group resumed>) = ? [pid 5317] +++ exited with 0 +++ [pid 5080] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5320 attached [pid 5318] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5319 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5320 [pid 5075] fstat(3, [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5321 [pid 5079] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5319 attached [pid 5079] <... openat resumed>) = 3 [pid 5075] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] chdir("./40" [pid 5079] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5321 attached [pid 5319] <... chdir resumed>) = 0 [pid 5081] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5321] chdir("./40" [pid 5320] chdir("./39" [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] lstat("./36/binderfs", [pid 5321] <... chdir resumed>) = 0 [pid 5320] <... chdir resumed>) = 0 [pid 5319] <... prctl resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5319] setpgid(0, 0 [pid 5079] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5321] <... prctl resumed>) = 0 [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5319] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./36/binderfs" [pid 5321] setpgid(0, 0 [pid 5320] <... prctl resumed>) = 0 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] fstat(3, [pid 5079] lstat("./40/binderfs", [pid 5321] <... setpgid resumed>) = 0 [pid 5320] setpgid(0, 0 [pid 5319] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5320] <... setpgid resumed>) = 0 [pid 5319] write(3, "1000", 4 [pid 5081] getdents64(3, [pid 5079] unlink("./40/binderfs" [pid 5075] getdents64(3, [pid 5321] <... openat resumed>) = 3 [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5319] <... write resumed>) = 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5321] write(3, "1000", 4 [pid 5320] <... openat resumed>) = 3 [pid 5319] close(3 [pid 5081] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5075] close(3 [pid 5321] <... write resumed>) = 4 [pid 5320] write(3, "1000", 4 [pid 5319] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5321] close(3 [pid 5320] <... write resumed>) = 4 [pid 5319] symlink("/dev/binderfs", "./binderfs" [pid 5081] lstat("./40/binderfs", [pid 5079] close(3 [pid 5075] rmdir("./36" [pid 5321] <... close resumed>) = 0 [pid 5320] close(3 [pid 5319] <... symlink resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 5320] <... close resumed>) = 0 [pid 5319] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] unlink("./40/binderfs" [pid 5079] rmdir("./40" [pid 5075] <... rmdir resumed>) = 0 [pid 5321] <... symlink resumed>) = 0 [pid 5320] symlink("/dev/binderfs", "./binderfs" [pid 5319] <... madvise resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] mkdir("./37", 0777 [pid 5321] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5320] <... symlink resumed>) = 0 [pid 5319] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5079] mkdir("./41", 0777 [pid 5321] <... madvise resumed>) = 0 [pid 5320] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5319] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5321] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5319] write(3, "1", 1 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5322 attached [pid 5321] <... openat resumed>) = 3 [pid 5320] <... madvise resumed>) = 0 [pid 5319] <... write resumed>) = 1 [pid 5081] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5321] write(3, "1", 1 [pid 5320] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5319] write(3, "\x32\x00", 2 [pid 5081] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5322 ./strace-static-x86_64: Process 5323 attached [pid 5322] chdir("./41" [pid 5321] <... write resumed>) = 1 [pid 5320] <... openat resumed>) = 3 [pid 5319] <... write resumed>) = 2 [pid 5081] rmdir("./40" [pid 5323] chdir("./37" [pid 5321] write(3, "\x32\x00", 2 [pid 5320] write(3, "1", 1 [pid 5319] exit_group(0 [pid 5323] <... chdir resumed>) = 0 [pid 5321] <... write resumed>) = 2 [pid 5319] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5322] <... chdir resumed>) = 0 [pid 5321] exit_group(0 [pid 5320] <... write resumed>) = 1 [pid 5319] +++ exited with 0 +++ [pid 5081] mkdir("./41", 0777 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5323 [pid 5323] <... prctl resumed>) = 0 [pid 5321] <... exit_group resumed>) = ? [pid 5320] write(3, "\x32\x00", 2 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5323] setpgid(0, 0 [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5321] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5323] <... setpgid resumed>) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5320] <... write resumed>) = 2 [pid 5323] write(3, "1000", 4 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5323] <... write resumed>) = 4 [pid 5322] <... prctl resumed>) = 0 [pid 5320] exit_group(0 [pid 5323] close(3) = 0 [pid 5323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5322] setpgid(0, 0 [pid 5320] <... exit_group resumed>) = ? [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5323] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5080] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5323] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5324 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5324 attached [pid 5323] <... openat resumed>) = 3 [pid 5320] +++ exited with 0 +++ [pid 5080] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5322] <... setpgid resumed>) = 0 [pid 5324] chdir("./41" [pid 5323] write(3, "1", 1 [pid 5324] <... chdir resumed>) = 0 [pid 5323] <... write resumed>) = 1 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5323] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5324] <... prctl resumed>) = 0 [pid 5323] <... write resumed>) = 2 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] fstat(3, [pid 5077] fstat(3, [pid 5076] <... restart_syscall resumed>) = 0 [pid 5324] setpgid(0, 0 [pid 5323] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5324] <... setpgid resumed>) = 0 [pid 5323] <... exit_group resumed>) = ? [pid 5322] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5323] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] <... openat resumed>) = 3 [pid 5322] write(3, "1000", 4 [pid 5080] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5324] write(3, "1000", 4 [pid 5322] <... write resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5324] <... write resumed>) = 4 [pid 5322] close(3 [pid 5080] lstat("./40/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5324] close(3 [pid 5322] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] lstat("./40/binderfs", [pid 5076] fstat(3, [pid 5324] <... close resumed>) = 0 [pid 5322] symlink("/dev/binderfs", "./binderfs" [pid 5080] unlink("./40/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] symlink("/dev/binderfs", "./binderfs" [pid 5322] <... symlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5324] <... symlink resumed>) = 0 [pid 5322] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... unlink resumed>) = 0 [pid 5077] unlink("./40/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5324] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] <... madvise resumed>) = 0 [pid 5322] <... madvise resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5324] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5322] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5076] lstat("./39/binderfs", [pid 5324] <... openat resumed>) = 3 [pid 5322] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5324] write(3, "1", 1 [pid 5322] write(3, "1", 1 [pid 5080] <... close resumed>) = 0 [pid 5077] close(3 [pid 5076] unlink("./39/binderfs" [pid 5075] fstat(3, [pid 5324] <... write resumed>) = 1 [pid 5080] rmdir("./40" [pid 5077] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5324] write(3, "\x32\x00", 2 [pid 5076] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] rmdir("./40" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5324] <... write resumed>) = 2 [pid 5322] <... write resumed>) = 1 [pid 5080] mkdir("./41", 0777 [pid 5076] close(3 [pid 5324] exit_group(0 [pid 5322] write(3, "\x32\x00", 2 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5324] <... exit_group resumed>) = ? [pid 5322] <... write resumed>) = 2 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] mkdir("./41", 0777 [pid 5076] rmdir("./39" [pid 5324] +++ exited with 0 +++ [pid 5322] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5322] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] mkdir("./40", 0777) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5322] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5325 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5326 [pid 5075] lstat("./37/binderfs", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5325 attached [pid 5081] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5327 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5325] chdir("./41" [pid 5081] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5075] unlink("./37/binderfs"./strace-static-x86_64: Process 5326 attached [pid 5325] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5079] fstat(3, [pid 5326] chdir("./40" [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5327 attached [pid 5326] <... chdir resumed>) = 0 [pid 5325] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] getdents64(3, [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5327] chdir("./41" [pid 5326] <... prctl resumed>) = 0 [pid 5325] <... setpgid resumed>) = 0 [pid 5081] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... chdir resumed>) = 0 [pid 5326] setpgid(0, 0 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5326] <... setpgid resumed>) = 0 [pid 5325] <... openat resumed>) = 3 [pid 5081] lstat("./41/binderfs", [pid 5079] lstat("./41/binderfs", [pid 5075] close(3 [pid 5327] <... prctl resumed>) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5325] write(3, "1000", 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5327] setpgid(0, 0 [pid 5326] <... openat resumed>) = 3 [pid 5325] <... write resumed>) = 4 [pid 5081] unlink("./41/binderfs" [pid 5079] unlink("./41/binderfs" [pid 5075] rmdir("./37" [pid 5327] <... setpgid resumed>) = 0 [pid 5326] write(3, "1000", 4 [pid 5325] close(3 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5326] <... write resumed>) = 4 [pid 5325] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5326] close(3 [pid 5325] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5326] <... close resumed>) = 0 [pid 5325] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5075] mkdir("./38", 0777 [pid 5327] <... openat resumed>) = 3 [pid 5326] symlink("/dev/binderfs", "./binderfs" [pid 5325] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5079] <... close resumed>) = 0 [pid 5327] write(3, "1000", 4 [pid 5326] <... symlink resumed>) = 0 [pid 5325] <... madvise resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] rmdir("./41" [pid 5075] <... mkdir resumed>) = 0 [pid 5327] <... write resumed>) = 4 [pid 5326] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5325] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] rmdir("./41" [pid 5079] <... rmdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] close(3 [pid 5326] <... madvise resumed>) = 0 [pid 5325] <... openat resumed>) = 3 [pid 5079] mkdir("./42", 0777 [pid 5326] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5325] write(3, "1", 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5327] <... close resumed>) = 0 [pid 5326] <... openat resumed>) = 3 [pid 5325] <... write resumed>) = 1 [pid 5081] mkdir("./42", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] symlink("/dev/binderfs", "./binderfs" [pid 5326] write(3, "1", 1 [pid 5325] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5328 ./strace-static-x86_64: Process 5329 attached [pid 5327] <... symlink resumed>) = 0 [pid 5326] <... write resumed>) = 1 [pid 5325] <... write resumed>) = 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5329 ./strace-static-x86_64: Process 5328 attached [pid 5327] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5326] write(3, "\x32\x00", 2 [pid 5325] exit_group(0 [pid 5328] chdir("./38" [pid 5326] <... write resumed>) = 2 [pid 5325] <... exit_group resumed>) = ? [pid 5329] chdir("./42" [pid 5328] <... chdir resumed>) = 0 [pid 5327] <... madvise resumed>) = 0 [pid 5326] exit_group(0 [pid 5325] +++ exited with 0 +++ [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5327] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5326] <... exit_group resumed>) = ? [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5330 ./strace-static-x86_64: Process 5330 attached [pid 5329] <... chdir resumed>) = 0 [pid 5328] <... prctl resumed>) = 0 [pid 5327] <... openat resumed>) = 3 [pid 5326] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5330] chdir("./42" [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5328] setpgid(0, 0 [pid 5327] write(3, "1", 1 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5330] <... chdir resumed>) = 0 [pid 5329] <... prctl resumed>) = 0 [pid 5328] <... setpgid resumed>) = 0 [pid 5327] <... write resumed>) = 1 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5329] setpgid(0, 0 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5327] write(3, "\x32\x00", 2 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5330] <... prctl resumed>) = 0 [pid 5329] <... setpgid resumed>) = 0 [pid 5328] <... openat resumed>) = 3 [pid 5330] setpgid(0, 0 [pid 5328] write(3, "1000", 4 [pid 5330] <... setpgid resumed>) = 0 [pid 5328] <... write resumed>) = 4 [pid 5076] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] close(3 [pid 5327] <... write resumed>) = 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5330] <... openat resumed>) = 3 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] <... close resumed>) = 0 [pid 5327] exit_group(0 [pid 5080] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5330] write(3, "1000", 4 [pid 5328] symlink("/dev/binderfs", "./binderfs" [pid 5327] <... exit_group resumed>) = ? [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5329] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5330] <... write resumed>) = 4 [pid 5328] <... symlink resumed>) = 0 [pid 5076] fstat(3, [pid 5330] close(3 [pid 5328] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5330] <... close resumed>) = 0 [pid 5328] <... madvise resumed>) = 0 [pid 5327] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5330] symlink("/dev/binderfs", "./binderfs" [pid 5329] write(3, "1000", 4 [pid 5328] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5330] <... symlink resumed>) = 0 [pid 5329] <... write resumed>) = 4 [pid 5328] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5330] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5329] close(3 [pid 5328] write(3, "1", 1 [pid 5080] fstat(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5330] <... madvise resumed>) = 0 [pid 5329] <... close resumed>) = 0 [pid 5328] <... write resumed>) = 1 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5329] symlink("/dev/binderfs", "./binderfs" [pid 5080] getdents64(3, [pid 5330] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5329] <... symlink resumed>) = 0 [pid 5328] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] lstat("./40/binderfs", [pid 5330] <... openat resumed>) = 3 [pid 5329] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5330] write(3, "1", 1 [pid 5329] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5329] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] lstat("./41/binderfs", [pid 5077] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5329] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5329] write(3, "1", 1 [pid 5080] unlink("./41/binderfs" [pid 5077] fstat(3, [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./40/binderfs" [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... unlink resumed>) = 0 [pid 5330] <... write resumed>) = 1 [pid 5329] <... write resumed>) = 1 [pid 5328] <... write resumed>) = 2 [pid 5080] close(3 [pid 5077] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5330] write(3, "\x32\x00", 2 [pid 5329] write(3, "\x32\x00", 2 [pid 5328] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5330] <... write resumed>) = 2 [pid 5329] <... write resumed>) = 2 [pid 5080] rmdir("./41" [pid 5328] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5330] exit_group(0 [pid 5329] exit_group(0 [pid 5328] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5077] lstat("./41/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5330] <... exit_group resumed>) = ? [pid 5329] <... exit_group resumed>) = ? [pid 5080] mkdir("./42", 0777 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./40" [pid 5330] +++ exited with 0 +++ [pid 5076] <... rmdir resumed>) = 0 [pid 5329] +++ exited with 0 +++ [pid 5076] mkdir("./41", 0777 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] unlink("./41/binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... unlink resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5332 attached ./strace-static-x86_64: Process 5331 attached [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] getdents64(3, [pid 5075] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5331 [pid 5079] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5332 [pid 5332] chdir("./41" [pid 5331] chdir("./42" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5332] <... chdir resumed>) = 0 [pid 5331] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] rmdir("./41" [pid 5075] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5332] <... prctl resumed>) = 0 [pid 5331] <... prctl resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5332] setpgid(0, 0 [pid 5331] setpgid(0, 0 [pid 5081] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./42", 0777 [pid 5075] fstat(3, [pid 5332] <... setpgid resumed>) = 0 [pid 5331] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5081] fstat(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5081] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] lstat("./42/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./42/binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5333 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5331] write(3, "1000", 4 [pid 5081] lstat("./42/binderfs", [pid 5079] <... unlink resumed>) = 0 [pid 5075] lstat("./38/binderfs", [pid 5332] <... openat resumed>) = 3 [pid 5331] <... write resumed>) = 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5333 attached [pid 5332] write(3, "1000", 4 [pid 5331] close(3 [pid 5081] unlink("./42/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5333] chdir("./42" [pid 5332] <... write resumed>) = 4 [pid 5331] <... close resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] unlink("./38/binderfs" [pid 5333] <... chdir resumed>) = 0 [pid 5332] close(3 [pid 5331] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5079] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5332] <... close resumed>) = 0 [pid 5331] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5079] rmdir("./42" [pid 5075] getdents64(3, [pid 5333] <... prctl resumed>) = 0 [pid 5332] symlink("/dev/binderfs", "./binderfs" [pid 5331] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5333] setpgid(0, 0 [pid 5332] <... symlink resumed>) = 0 [pid 5331] <... madvise resumed>) = 0 [pid 5081] rmdir("./42" [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5333] <... setpgid resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] mkdir("./43", 0777 [pid 5075] close(3 [pid 5332] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5331] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] mkdir("./43", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./38" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... rmdir resumed>) = 0 [pid 5333] <... openat resumed>) = 3 [pid 5075] mkdir("./39", 0777 [pid 5333] write(3, "1000", 4) = 4 [pid 5331] <... openat resumed>) = 3 [pid 5333] close(3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5334 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5335 [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5334 attached [pid 5332] <... madvise resumed>) = 0 [pid 5331] write(3, "1", 1 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5333] <... close resumed>) = 0 [pid 5332] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5331] <... write resumed>) = 1 [pid 5333] symlink("/dev/binderfs", "./binderfs" [pid 5331] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5336 attached ./strace-static-x86_64: Process 5335 attached [pid 5334] chdir("./43" [pid 5333] <... symlink resumed>) = 0 [pid 5332] <... openat resumed>) = 3 [pid 5335] chdir("./43" [pid 5333] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5335] <... chdir resumed>) = 0 [pid 5333] <... madvise resumed>) = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5335] <... prctl resumed>) = 0 [pid 5333] <... openat resumed>) = 3 [pid 5332] write(3, "1", 1 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5336 [pid 5335] setpgid(0, 0 [pid 5334] <... chdir resumed>) = 0 [pid 5333] write(3, "1", 1 [pid 5335] <... setpgid resumed>) = 0 [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] <... write resumed>) = 1 [pid 5332] <... write resumed>) = 1 [pid 5331] <... write resumed>) = 2 [pid 5336] chdir("./39" [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] <... prctl resumed>) = 0 [pid 5333] write(3, "\x32\x00", 2 [pid 5332] write(3, "\x32\x00", 2 [pid 5336] <... chdir resumed>) = 0 [pid 5335] <... openat resumed>) = 3 [pid 5334] setpgid(0, 0 [pid 5333] <... write resumed>) = 2 [pid 5332] <... write resumed>) = 2 [pid 5331] exit_group(0 [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5335] write(3, "1000", 4 [pid 5334] <... setpgid resumed>) = 0 [pid 5333] exit_group(0 [pid 5332] exit_group(0 [pid 5331] <... exit_group resumed>) = ? [pid 5336] <... prctl resumed>) = 0 [pid 5335] <... write resumed>) = 4 [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5333] <... exit_group resumed>) = ? [pid 5332] <... exit_group resumed>) = ? [pid 5336] setpgid(0, 0 [pid 5335] close(3 [pid 5333] +++ exited with 0 +++ [pid 5332] +++ exited with 0 +++ [pid 5336] <... setpgid resumed>) = 0 [pid 5335] <... close resumed>) = 0 [pid 5334] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5335] symlink("/dev/binderfs", "./binderfs" [pid 5334] write(3, "1000", 4 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] <... symlink resumed>) = 0 [pid 5334] <... write resumed>) = 4 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5336] <... openat resumed>) = 3 [pid 5335] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5334] close(3 [pid 5331] +++ exited with 0 +++ [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] write(3, "1000", 4 [pid 5335] <... madvise resumed>) = 0 [pid 5334] <... close resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] <... write resumed>) = 4 [pid 5335] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5334] symlink("/dev/binderfs", "./binderfs" [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5076] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5335] <... openat resumed>) = 3 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5335] write(3, "1", 1 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5077] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5336] close(3 [pid 5335] <... write resumed>) = 1 [pid 5334] <... symlink resumed>) = 0 [pid 5080] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5335] write(3, "\x32\x00", 2 [pid 5334] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5077] getdents64(3, [pid 5076] lstat("./41/binderfs", [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./41/binderfs" [pid 5080] getdents64(3, [pid 5077] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5080] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./42/binderfs", [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] close(3 [pid 5080] lstat("./42/binderfs", [pid 5077] unlink("./42/binderfs" [pid 5076] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./41" [pid 5334] <... madvise resumed>) = 0 [pid 5080] unlink("./42/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] mkdir("./42", 0777 [pid 5334] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5336] <... close resumed>) = 0 [pid 5334] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5080] close(3 [pid 5077] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5337 [pid 5334] write(3, "1", 1 [pid 5336] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... close resumed>) = 0 [pid 5077] rmdir("./42" [pid 5080] rmdir("./42"./strace-static-x86_64: Process 5337 attached [pid 5077] <... rmdir resumed>) = 0 [pid 5337] chdir("./42" [pid 5080] <... rmdir resumed>) = 0 [pid 5077] mkdir("./43", 0777 [pid 5080] mkdir("./43", 0777 [pid 5337] <... chdir resumed>) = 0 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5337] setpgid(0, 0) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5336] <... symlink resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] <... openat resumed>) = 3 [pid 5337] write(3, "1000", 4) = 4 [pid 5337] close(3) = 0 [pid 5337] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5338 [pid 5336] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5337] <... symlink resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5339 [pid 5337] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5336] <... madvise resumed>) = 0 [pid 5337] <... madvise resumed>) = 0 [pid 5336] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5337] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY./strace-static-x86_64: Process 5339 attached ./strace-static-x86_64: Process 5338 attached ) = 3 [pid 5336] <... openat resumed>) = 3 [pid 5339] chdir("./43" [pid 5338] chdir("./43" [pid 5337] write(3, "1", 1 [pid 5336] write(3, "1", 1 [pid 5339] <... chdir resumed>) = 0 [pid 5338] <... chdir resumed>) = 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5339] <... prctl resumed>) = 0 [pid 5338] <... prctl resumed>) = 0 [pid 5339] setpgid(0, 0 [pid 5338] setpgid(0, 0 [pid 5339] <... setpgid resumed>) = 0 [pid 5338] <... setpgid resumed>) = 0 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] <... openat resumed>) = 3 [pid 5338] <... openat resumed>) = 3 [pid 5339] write(3, "1000", 4 [pid 5338] write(3, "1000", 4 [pid 5339] <... write resumed>) = 4 [pid 5338] <... write resumed>) = 4 [pid 5339] close(3 [pid 5338] close(3 [pid 5339] <... close resumed>) = 0 [pid 5338] <... close resumed>) = 0 [pid 5339] symlink("/dev/binderfs", "./binderfs" [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 5339] <... symlink resumed>) = 0 [pid 5338] <... symlink resumed>) = 0 [pid 5339] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5338] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5337] <... write resumed>) = 1 [pid 5336] <... write resumed>) = 1 [pid 5335] <... write resumed>) = 2 [pid 5334] <... write resumed>) = 1 [pid 5339] <... madvise resumed>) = 0 [pid 5338] <... madvise resumed>) = 0 [pid 5337] write(3, "\x32\x00", 2 [pid 5336] write(3, "\x32\x00", 2 [pid 5334] write(3, "\x32\x00", 2 [pid 5335] exit_group(0 [pid 5339] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5338] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5337] <... write resumed>) = 2 [pid 5336] <... write resumed>) = 2 [pid 5335] <... exit_group resumed>) = ? [pid 5334] <... write resumed>) = 2 [pid 5339] <... openat resumed>) = 3 [pid 5338] <... openat resumed>) = 3 [pid 5336] exit_group(0 [pid 5334] exit_group(0 [pid 5339] write(3, "1", 1 [pid 5338] write(3, "1", 1 [pid 5336] <... exit_group resumed>) = ? [pid 5334] <... exit_group resumed>) = ? [pid 5339] <... write resumed>) = 1 [pid 5338] <... write resumed>) = 1 [pid 5339] write(3, "\x32\x00", 2 [pid 5338] write(3, "\x32\x00", 2 [pid 5339] <... write resumed>) = 2 [pid 5338] <... write resumed>) = 2 [pid 5337] exit_group(0 [pid 5336] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ [pid 5334] +++ exited with 0 +++ [pid 5338] exit_group(0 [pid 5337] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5339] exit_group(0 [pid 5338] <... exit_group resumed>) = ? [pid 5339] <... exit_group resumed>) = ? [pid 5338] +++ exited with 0 +++ [pid 5337] +++ exited with 0 +++ [pid 5339] +++ exited with 0 +++ [pid 5081] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] fstat(3, [pid 5079] <... openat resumed>) = 3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] fstat(3, [pid 5080] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5081] lstat("./43/binderfs", [pid 5080] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] lstat("./42/binderfs", [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] lstat("./43/binderfs", [pid 5077] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] unlink("./43/binderfs" [pid 5080] fstat(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] fstat(3, [pid 5076] unlink("./42/binderfs" [pid 5075] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] unlink("./43/binderfs" [pid 5076] <... unlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./39/binderfs", [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./42" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] lstat("./43/binderfs", [pid 5079] close(3 [pid 5077] lstat("./43/binderfs", [pid 5076] <... rmdir resumed>) = 0 [pid 5075] unlink("./39/binderfs" [pid 5081] rmdir("./43" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] mkdir("./43", 0777 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] rmdir("./43" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5080] unlink("./43/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5081] mkdir("./44", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] unlink("./43/binderfs" [pid 5075] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5340 [pid 5081] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5340 attached [pid 5077] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] mkdir("./44", 0777 [pid 5075] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5080] close(3 [pid 5077] close(3 [pid 5340] chdir("./43") = 0 [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... mkdir resumed>) = 0 [pid 5075] rmdir("./39" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5341 [pid 5080] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5340] <... prctl resumed>) = 0 [pid 5077] rmdir("./43" [pid 5075] <... rmdir resumed>) = 0 [pid 5080] rmdir("./43" [pid 5340] setpgid(0, 0) = 0 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5340] write(3, "1000", 4) = 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] mkdir("./44", 0777 [pid 5075] mkdir("./40", 0777 [pid 5080] mkdir("./44", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5342 [pid 5340] close(3) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5341 attached [pid 5341] chdir("./44" [pid 5080] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5341] <... chdir resumed>) = 0 [pid 5340] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] <... madvise resumed>) = 0 [pid 5341] <... prctl resumed>) = 0 [pid 5340] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5341] setpgid(0, 0 [pid 5340] <... openat resumed>) = 3 [pid 5341] <... setpgid resumed>) = 0 [pid 5340] write(3, "1", 1 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5340] <... write resumed>) = 1 ./strace-static-x86_64: Process 5344 attached ./strace-static-x86_64: Process 5342 attached [pid 5341] <... openat resumed>) = 3 [pid 5340] write(3, "\x32\x00", 2 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5343 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5344 ./strace-static-x86_64: Process 5343 attached [pid 5344] chdir("./40" [pid 5342] chdir("./44" [pid 5341] write(3, "1000", 4 [pid 5340] <... write resumed>) = 2 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5345 ./strace-static-x86_64: Process 5345 attached [pid 5344] <... chdir resumed>) = 0 [pid 5343] chdir("./44" [pid 5342] <... chdir resumed>) = 0 [pid 5341] <... write resumed>) = 4 [pid 5340] exit_group(0 [pid 5345] chdir("./44" [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] <... chdir resumed>) = 0 [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5341] close(3 [pid 5340] <... exit_group resumed>) = ? [pid 5345] <... chdir resumed>) = 0 [pid 5344] <... prctl resumed>) = 0 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] <... prctl resumed>) = 0 [pid 5341] <... close resumed>) = 0 [pid 5340] +++ exited with 0 +++ [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5344] setpgid(0, 0 [pid 5343] <... prctl resumed>) = 0 [pid 5341] symlink("/dev/binderfs", "./binderfs" [pid 5342] setpgid(0, 0 [pid 5345] <... prctl resumed>) = 0 [pid 5344] <... setpgid resumed>) = 0 [pid 5343] setpgid(0, 0 [pid 5342] <... setpgid resumed>) = 0 [pid 5341] <... symlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5343] <... setpgid resumed>) = 0 [pid 5341] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5345] setpgid(0, 0 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5341] <... madvise resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5345] <... setpgid resumed>) = 0 [pid 5344] <... openat resumed>) = 3 [pid 5343] <... openat resumed>) = 3 [pid 5341] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5344] write(3, "1000", 4 [pid 5343] write(3, "1000", 4 [pid 5342] <... openat resumed>) = 3 [pid 5341] <... openat resumed>) = 3 [pid 5344] <... write resumed>) = 4 [pid 5343] <... write resumed>) = 4 [pid 5342] write(3, "1000", 4 [pid 5341] write(3, "1", 1 [pid 5345] <... openat resumed>) = 3 [pid 5076] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5345] write(3, "1000", 4 [pid 5344] close(3 [pid 5343] close(3 [pid 5342] <... write resumed>) = 4 [pid 5341] <... write resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5345] <... write resumed>) = 4 [pid 5344] <... close resumed>) = 0 [pid 5343] <... close resumed>) = 0 [pid 5342] close(3 [pid 5341] write(3, "\x32\x00", 2 [pid 5076] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5345] close(3 [pid 5344] symlink("/dev/binderfs", "./binderfs" [pid 5343] symlink("/dev/binderfs", "./binderfs" [pid 5342] <... close resumed>) = 0 [pid 5341] <... write resumed>) = 2 [pid 5076] <... openat resumed>) = 3 [pid 5345] <... close resumed>) = 0 [pid 5343] <... symlink resumed>) = 0 [pid 5342] symlink("/dev/binderfs", "./binderfs" [pid 5341] exit_group(0 [pid 5076] fstat(3, [pid 5344] <... symlink resumed>) = 0 [pid 5343] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5341] <... exit_group resumed>) = ? [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5345] symlink("/dev/binderfs", "./binderfs" [pid 5344] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5343] <... madvise resumed>) = 0 [pid 5342] <... symlink resumed>) = 0 [pid 5341] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5345] <... symlink resumed>) = 0 [pid 5343] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5342] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5345] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5344] <... madvise resumed>) = 0 [pid 5343] <... openat resumed>) = 3 [pid 5076] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] write(3, "1", 1 [pid 5342] <... madvise resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5345] <... madvise resumed>) = 0 [pid 5344] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5343] <... write resumed>) = 1 [pid 5342] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] lstat("./43/binderfs", [pid 5345] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5344] <... openat resumed>) = 3 [pid 5343] write(3, "\x32\x00", 2 [pid 5342] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5345] <... openat resumed>) = 3 [pid 5344] write(3, "1", 1 [pid 5343] <... write resumed>) = 2 [pid 5342] write(3, "1", 1 [pid 5076] unlink("./43/binderfs" [pid 5345] write(3, "1", 1 [pid 5344] <... write resumed>) = 1 [pid 5343] exit_group(0 [pid 5342] <... write resumed>) = 1 [pid 5081] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5345] <... write resumed>) = 1 [pid 5344] write(3, "\x32\x00", 2 [pid 5343] <... exit_group resumed>) = ? [pid 5342] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5345] write(3, "\x32\x00", 2 [pid 5343] +++ exited with 0 +++ [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] rmdir("./43" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... rmdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] mkdir("./44", 0777 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... mkdir resumed>) = 0 [pid 5345] <... write resumed>) = 2 [pid 5342] <... write resumed>) = 2 [pid 5081] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5346 attached [pid 5345] exit_group(0 [pid 5344] <... write resumed>) = 2 [pid 5342] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5345] <... exit_group resumed>) = ? [pid 5344] exit_group(0 [pid 5342] <... exit_group resumed>) = ? [pid 5081] lstat("./44/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5346] chdir("./44" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5346 [pid 5344] <... exit_group resumed>) = ? [pid 5345] +++ exited with 0 +++ [pid 5344] +++ exited with 0 +++ [pid 5342] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] unlink("./44/binderfs" [pid 5077] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5346] <... chdir resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(3, [pid 5080] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5346] <... prctl resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] fstat(3, [pid 5075] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5346] setpgid(0, 0 [pid 5081] close(3 [pid 5080] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5346] <... setpgid resumed>) = 0 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./44" [pid 5080] fstat(3, [pid 5079] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5346] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5346] write(3, "1000", 4) = 4 [pid 5346] close(3) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] mkdir("./45", 0777 [pid 5075] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5077] lstat("./44/binderfs", [pid 5346] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, [pid 5346] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] unlink("./44/binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5346] <... madvise resumed>) = 0 [pid 5079] getdents64(3, [pid 5346] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5346] <... openat resumed>) = 3 [pid 5080] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5347 attached [pid 5346] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5347 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5347] chdir("./45" [pid 5346] <... write resumed>) = 1 [pid 5080] lstat("./44/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] close(3 [pid 5075] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5346] write(3, "\x32\x00", 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5347] <... chdir resumed>) = 0 [pid 5346] <... write resumed>) = 2 [pid 5080] unlink("./44/binderfs" [pid 5079] lstat("./44/binderfs", [pid 5077] rmdir("./44" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5346] exit_group(0) = ? [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5346] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] lstat("./40/binderfs", [pid 5347] <... prctl resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] unlink("./44/binderfs" [pid 5077] mkdir("./45", 0777 [pid 5347] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] unlink("./40/binderfs" [pid 5079] getdents64(3, [pid 5080] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... unlink resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./44" [pid 5079] close(3 [pid 5075] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5076] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] rmdir("./44" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5080] mkdir("./45", 0777 [pid 5347] <... setpgid resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... rmdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] mkdir("./45", 0777 [pid 5076] <... openat resumed>) = 3 [pid 5075] rmdir("./40" [pid 5076] fstat(3, ./strace-static-x86_64: Process 5348 attached [pid 5075] <... rmdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5348] chdir("./45" [pid 5079] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] mkdir("./41", 0777 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5348 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5348] <... chdir resumed>) = 0 [pid 5076] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5348] setpgid(0, 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5348] <... setpgid resumed>) = 0 [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] lstat("./44/binderfs", [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5349 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5350 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5348] <... openat resumed>) = 3 [pid 5348] write(3, "1000", 4 [pid 5076] unlink("./44/binderfs"./strace-static-x86_64: Process 5351 attached ./strace-static-x86_64: Process 5350 attached ./strace-static-x86_64: Process 5349 attached [pid 5348] <... write resumed>) = 4 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] chdir("./45" [pid 5348] close(3 [pid 5347] <... openat resumed>) = 3 [pid 5350] chdir("./45" [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5351 [pid 5351] chdir("./41" [pid 5347] write(3, "1000", 4 [pid 5076] getdents64(3, [pid 5350] <... chdir resumed>) = 0 [pid 5349] <... chdir resumed>) = 0 [pid 5348] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5348] symlink("/dev/binderfs", "./binderfs" [pid 5347] <... write resumed>) = 4 [pid 5076] close(3 [pid 5349] <... prctl resumed>) = 0 [pid 5348] <... symlink resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5351] <... chdir resumed>) = 0 [pid 5350] <... prctl resumed>) = 0 [pid 5349] setpgid(0, 0 [pid 5348] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5347] close(3 [pid 5076] rmdir("./44" [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5350] setpgid(0, 0 [pid 5349] <... setpgid resumed>) = 0 [pid 5348] <... madvise resumed>) = 0 [pid 5347] <... close resumed>) = 0 [pid 5351] <... prctl resumed>) = 0 [pid 5350] <... setpgid resumed>) = 0 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5348] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... rmdir resumed>) = 0 [pid 5347] symlink("/dev/binderfs", "./binderfs" [pid 5351] setpgid(0, 0 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] <... openat resumed>) = 3 [pid 5348] <... openat resumed>) = 3 [pid 5076] mkdir("./45", 0777 [pid 5349] write(3, "1000", 4 [pid 5348] write(3, "1", 1 [pid 5347] <... symlink resumed>) = 0 [pid 5349] <... write resumed>) = 4 [pid 5348] <... write resumed>) = 1 [pid 5349] close(3 [pid 5348] write(3, "\x32\x00", 2 [pid 5076] <... mkdir resumed>) = 0 [pid 5351] <... setpgid resumed>) = 0 [pid 5350] <... openat resumed>) = 3 [pid 5349] <... close resumed>) = 0 [pid 5348] <... write resumed>) = 2 [pid 5347] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5349] symlink("/dev/binderfs", "./binderfs" [pid 5348] exit_group(0 [pid 5349] <... symlink resumed>) = 0 [pid 5348] <... exit_group resumed>) = ? [pid 5347] <... madvise resumed>) = 0 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] write(3, "1000", 4 [pid 5349] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5348] +++ exited with 0 +++ ./strace-static-x86_64: Process 5352 attached [pid 5351] <... openat resumed>) = 3 [pid 5350] <... write resumed>) = 4 [pid 5349] <... madvise resumed>) = 0 [pid 5347] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5348, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5352 [pid 5351] write(3, "1000", 4 [pid 5350] close(3 [pid 5349] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5352] chdir("./45" [pid 5351] <... write resumed>) = 4 [pid 5350] <... close resumed>) = 0 [pid 5349] <... openat resumed>) = 3 [pid 5347] <... openat resumed>) = 3 [pid 5352] <... chdir resumed>) = 0 [pid 5351] close(3 [pid 5350] symlink("/dev/binderfs", "./binderfs" [pid 5349] write(3, "1", 1 [pid 5347] write(3, "1", 1 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5351] <... close resumed>) = 0 [pid 5349] <... write resumed>) = 1 [pid 5352] <... prctl resumed>) = 0 [pid 5349] write(3, "\x32\x00", 2 [pid 5352] setpgid(0, 0 [pid 5351] symlink("/dev/binderfs", "./binderfs" [pid 5350] <... symlink resumed>) = 0 [pid 5349] <... write resumed>) = 2 [pid 5347] <... write resumed>) = 1 [pid 5077] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5352] <... setpgid resumed>) = 0 [pid 5350] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5349] exit_group(0 [pid 5347] write(3, "\x32\x00", 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... madvise resumed>) = 0 [pid 5349] <... exit_group resumed>) = ? [pid 5352] <... openat resumed>) = 3 [pid 5351] <... symlink resumed>) = 0 [pid 5350] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5349] +++ exited with 0 +++ [pid 5347] <... write resumed>) = 2 [pid 5077] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5352] write(3, "1000", 4 [pid 5351] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5350] <... openat resumed>) = 3 [pid 5347] exit_group(0 [pid 5352] <... write resumed>) = 4 [pid 5350] write(3, "1", 1 [pid 5347] <... exit_group resumed>) = ? [pid 5077] <... openat resumed>) = 3 [pid 5352] close(3 [pid 5351] <... madvise resumed>) = 0 [pid 5350] <... write resumed>) = 1 [pid 5347] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] fstat(3, [pid 5352] <... close resumed>) = 0 [pid 5351] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5350] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5351] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5352] <... symlink resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5352] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5351] write(3, "1", 1 [pid 5081] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5077] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5352] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5352] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5352] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] lstat("./45/binderfs", [pid 5352] write(3, "1", 1 [pid 5081] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] lstat("./45/binderfs", [pid 5077] unlink("./45/binderfs" [pid 5081] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./45/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./45/binderfs" [pid 5081] unlink("./45/binderfs" [pid 5077] getdents64(3, [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5077] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5081] close(3 [pid 5080] close(3 [pid 5077] rmdir("./45" [pid 5352] <... write resumed>) = 1 [pid 5351] <... write resumed>) = 1 [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5352] write(3, "\x32\x00", 2 [pid 5081] rmdir("./45" [pid 5352] <... write resumed>) = 2 [pid 5351] write(3, "\x32\x00", 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./45" [pid 5077] <... rmdir resumed>) = 0 [pid 5352] exit_group(0 [pid 5351] <... write resumed>) = 2 [pid 5350] <... write resumed>) = 2 [pid 5081] mkdir("./46", 0777 [pid 5352] <... exit_group resumed>) = ? [pid 5351] exit_group(0 [pid 5350] exit_group(0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] mkdir("./46", 0777 [pid 5352] +++ exited with 0 +++ [pid 5351] <... exit_group resumed>) = ? [pid 5350] <... exit_group resumed>) = ? [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./46", 0777 [pid 5351] +++ exited with 0 +++ [pid 5350] +++ exited with 0 +++ [pid 5077] <... mkdir resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5353 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5353 attached [pid 5353] chdir("./46") = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5353] setpgid(0, 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5354 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5355 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... setpgid resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5353] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5075] <... openat resumed>) = 3 [pid 5353] write(3, "1000", 4 [pid 5079] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5353] <... write resumed>) = 4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5354 attached [pid 5353] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5354] chdir("./46" [pid 5353] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5355 attached [pid 5354] <... chdir resumed>) = 0 [pid 5353] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5076] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] chdir("./46" [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5353] <... symlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5355] <... chdir resumed>) = 0 [pid 5354] <... prctl resumed>) = 0 [pid 5353] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5354] setpgid(0, 0 [pid 5353] <... madvise resumed>) = 0 [pid 5079] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./45/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] <... prctl resumed>) = 0 [pid 5354] <... setpgid resumed>) = 0 [pid 5353] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] setpgid(0, 0 [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5353] <... openat resumed>) = 3 [pid 5079] lstat("./45/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] lstat("./41/binderfs", [pid 5355] <... setpgid resumed>) = 0 [pid 5354] <... openat resumed>) = 3 [pid 5353] write(3, "1", 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./45/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5354] write(3, "1000", 4 [pid 5353] <... write resumed>) = 1 [pid 5079] unlink("./45/binderfs" [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5354] <... write resumed>) = 4 [pid 5353] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] unlink("./41/binderfs" [pid 5355] <... openat resumed>) = 3 [pid 5354] close(3 [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5355] write(3, "1000", 4 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5355] <... write resumed>) = 4 [pid 5354] <... close resumed>) = 0 [pid 5353] <... write resumed>) = 2 [pid 5079] close(3 [pid 5076] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5355] close(3 [pid 5354] symlink("/dev/binderfs", "./binderfs" [pid 5353] exit_group(0 [pid 5079] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] close(3 [pid 5355] <... close resumed>) = 0 [pid 5354] <... symlink resumed>) = 0 [pid 5353] <... exit_group resumed>) = ? [pid 5079] rmdir("./45" [pid 5076] rmdir("./45" [pid 5075] <... close resumed>) = 0 [pid 5355] symlink("/dev/binderfs", "./binderfs" [pid 5354] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5353] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] rmdir("./41" [pid 5355] <... symlink resumed>) = 0 [pid 5354] <... madvise resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] mkdir("./46", 0777 [pid 5076] mkdir("./46", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5355] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5354] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] mkdir("./42", 0777 [pid 5355] <... madvise resumed>) = 0 [pid 5354] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5357 attached ./strace-static-x86_64: Process 5356 attached [pid 5355] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5354] write(3, "1", 1 [pid 5081] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5358 attached [pid 5357] chdir("./46" [pid 5356] chdir("./46" [pid 5355] <... openat resumed>) = 3 [pid 5354] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5356 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5357 [pid 5355] write(3, "1", 1 [pid 5081] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] <... chdir resumed>) = 0 [pid 5354] write(3, "\x32\x00", 2 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5358 [pid 5357] <... chdir resumed>) = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5355] <... write resumed>) = 1 [pid 5081] <... openat resumed>) = 3 [pid 5355] write(3, "\x32\x00", 2 [pid 5081] fstat(3, [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] <... prctl resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5358] chdir("./42" [pid 5357] <... prctl resumed>) = 0 [pid 5356] setpgid(0, 0 [pid 5355] <... write resumed>) = 2 [pid 5354] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5358] <... chdir resumed>) = 0 [pid 5357] setpgid(0, 0 [pid 5356] <... setpgid resumed>) = 0 [pid 5355] exit_group(0 [pid 5354] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5357] <... setpgid resumed>) = 0 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] <... exit_group resumed>) = ? [pid 5354] <... exit_group resumed>) = ? [pid 5081] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5356] <... openat resumed>) = 3 [pid 5355] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5357] <... openat resumed>) = 3 [pid 5356] write(3, "1000", 4 [pid 5081] lstat("./46/binderfs", [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5357] write(3, "1000", 4 [pid 5356] <... write resumed>) = 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5357] <... write resumed>) = 4 [pid 5356] close(3 [pid 5354] +++ exited with 0 +++ [pid 5358] <... prctl resumed>) = 0 [pid 5081] unlink("./46/binderfs" [pid 5077] <... restart_syscall resumed>) = 0 [pid 5357] close(3 [pid 5356] <... close resumed>) = 0 [pid 5358] setpgid(0, 0 [pid 5357] <... close resumed>) = 0 [pid 5356] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5358] <... setpgid resumed>) = 0 [pid 5357] symlink("/dev/binderfs", "./binderfs" [pid 5356] <... symlink resumed>) = 0 [pid 5358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] <... symlink resumed>) = 0 [pid 5356] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5358] <... openat resumed>) = 3 [pid 5357] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5356] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5358] write(3, "1000", 4 [pid 5357] <... madvise resumed>) = 0 [pid 5356] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] close(3 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5358] <... write resumed>) = 4 [pid 5357] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5356] <... openat resumed>) = 3 [pid 5358] close(3 [pid 5357] <... openat resumed>) = 3 [pid 5356] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5358] <... close resumed>) = 0 [pid 5357] write(3, "1", 1 [pid 5356] <... write resumed>) = 1 [pid 5081] rmdir("./46" [pid 5080] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5358] symlink("/dev/binderfs", "./binderfs" [pid 5357] <... write resumed>) = 1 [pid 5356] write(3, "\x32\x00", 2 [pid 5358] <... symlink resumed>) = 0 [pid 5357] write(3, "\x32\x00", 2 [pid 5356] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5358] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5357] <... write resumed>) = 2 [pid 5356] exit_group(0 [pid 5081] mkdir("./47", 0777 [pid 5080] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] fstat(3, [pid 5358] <... madvise resumed>) = 0 [pid 5357] exit_group(0 [pid 5356] <... exit_group resumed>) = ? [pid 5358] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5357] <... exit_group resumed>) = ? [pid 5356] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5358] <... openat resumed>) = 3 [pid 5357] +++ exited with 0 +++ [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] fstat(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5358] write(3, "1", 1 [pid 5077] getdents64(3, [pid 5358] <... write resumed>) = 1 [pid 5358] write(3, "\x32\x00", 2) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5358] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5359 [pid 5080] getdents64(3, [pid 5077] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5358] <... exit_group resumed>) = ? [pid 5358] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./46/binderfs", [pid 5076] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5359 attached [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] lstat("./46/binderfs", [pid 5079] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] unlink("./46/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5359] chdir("./47" [pid 5077] <... unlink resumed>) = 0 [pid 5080] unlink("./46/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5359] <... chdir resumed>) = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] fstat(3, [pid 5075] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] setpgid(0, 0 [pid 5080] getdents64(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5359] <... setpgid resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5359] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] close(3 [pid 5076] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] write(3, "1000", 4 [pid 5080] rmdir("./46" [pid 5079] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5359] <... write resumed>) = 4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5359] close(3) = 0 [pid 5359] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./46" [pid 5076] lstat("./46/binderfs", [pid 5075] fstat(3, [pid 5359] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] mkdir("./47", 0777 [pid 5079] lstat("./46/binderfs", [pid 5359] <... madvise resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5359] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] mkdir("./47", 0777 [pid 5076] unlink("./46/binderfs" [pid 5359] write(3, "1", 1 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] unlink("./46/binderfs" [pid 5075] getdents64(3, [pid 5359] <... write resumed>) = 1 [pid 5077] <... mkdir resumed>) = 0 [pid 5359] write(3, "\x32\x00", 2 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5359] <... write resumed>) = 2 [pid 5079] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] exit_group(0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5360 [pid 5079] getdents64(3, [pid 5359] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5361 attached [pid 5359] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5361 [pid 5076] close(3 [pid 5075] lstat("./42/binderfs", [pid 5079] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5079] rmdir("./46" [pid 5076] rmdir("./46" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5360 attached [pid 5360] chdir("./47" [pid 5079] <... rmdir resumed>) = 0 [pid 5360] <... chdir resumed>) = 0 [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... rmdir resumed>) = 0 [pid 5079] mkdir("./47", 0777 [pid 5076] mkdir("./47", 0777 [pid 5075] unlink("./42/binderfs" [pid 5360] <... prctl resumed>) = 0 [pid 5360] setpgid(0, 0) = 0 [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... mkdir resumed>) = 0 [pid 5081] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5360] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5081] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5360] write(3, "1000", 4) = 4 [pid 5360] close(3) = 0 [pid 5360] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] close(3 [pid 5360] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5360] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5362 [pid 5075] <... close resumed>) = 0 [pid 5360] write(3, "1", 1 [pid 5361] chdir("./47" [pid 5360] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5363 [pid 5075] rmdir("./42" [pid 5360] write(3, "\x32\x00", 2 [pid 5081] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5363 attached ./strace-static-x86_64: Process 5362 attached [pid 5361] <... chdir resumed>) = 0 [pid 5360] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5363] chdir("./47" [pid 5362] chdir("./47" [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5360] exit_group(0 [pid 5081] lstat("./47/binderfs", [pid 5075] mkdir("./43", 0777 [pid 5363] <... chdir resumed>) = 0 [pid 5362] <... chdir resumed>) = 0 [pid 5360] <... exit_group resumed>) = ? [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5361] <... prctl resumed>) = 0 [pid 5081] unlink("./47/binderfs" [pid 5360] +++ exited with 0 +++ [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... mkdir resumed>) = 0 [pid 5363] <... prctl resumed>) = 0 [pid 5362] <... prctl resumed>) = 0 [pid 5361] setpgid(0, 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5363] setpgid(0, 0 [pid 5362] setpgid(0, 0 [pid 5361] <... setpgid resumed>) = 0 [pid 5081] getdents64(3, [pid 5362] <... setpgid resumed>) = 0 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5080] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5364 [pid 5081] rmdir("./47" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5362] write(3, "1000", 4) = 4 [pid 5362] close(3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5364 attached [pid 5363] <... setpgid resumed>) = 0 [pid 5362] <... close resumed>) = 0 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] mkdir("./48", 0777 [pid 5364] chdir("./43" [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5362] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5364] <... chdir resumed>) = 0 [pid 5362] <... symlink resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5363] <... openat resumed>) = 3 [pid 5362] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5361] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] fstat(3, [pid 5364] <... prctl resumed>) = 0 [pid 5363] write(3, "1000", 4 [pid 5362] <... madvise resumed>) = 0 [pid 5364] setpgid(0, 0 [pid 5362] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5364] <... setpgid resumed>) = 0 [pid 5362] <... openat resumed>) = 3 [pid 5080] getdents64(3, ./strace-static-x86_64: Process 5365 attached [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5363] <... write resumed>) = 4 [pid 5362] write(3, "1", 1 [pid 5361] write(3, "1000", 4 [pid 5365] chdir("./48" [pid 5364] <... openat resumed>) = 3 [pid 5363] close(3 [pid 5362] <... write resumed>) = 1 [pid 5361] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5365 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5365] <... chdir resumed>) = 0 [pid 5364] write(3, "1000", 4 [pid 5363] <... close resumed>) = 0 [pid 5080] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] write(3, "\x32\x00", 2 [pid 5361] close(3 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] <... write resumed>) = 4 [pid 5363] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5361] <... close resumed>) = 0 [pid 5361] symlink("/dev/binderfs", "./binderfs" [pid 5362] <... write resumed>) = 2 [pid 5361] <... symlink resumed>) = 0 [pid 5080] lstat("./47/binderfs", [pid 5365] <... prctl resumed>) = 0 [pid 5364] close(3 [pid 5363] <... symlink resumed>) = 0 [pid 5362] exit_group(0 [pid 5361] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5364] <... close resumed>) = 0 [pid 5363] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5362] <... exit_group resumed>) = ? [pid 5361] <... madvise resumed>) = 0 [pid 5080] unlink("./47/binderfs" [pid 5363] <... madvise resumed>) = 0 [pid 5361] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5361] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5364] symlink("/dev/binderfs", "./binderfs" [pid 5363] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5361] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5364] <... symlink resumed>) = 0 [pid 5361] write(3, "\x32\x00", 2 [pid 5080] close(3 [pid 5365] setpgid(0, 0 [pid 5364] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5363] <... openat resumed>) = 3 [pid 5362] +++ exited with 0 +++ [pid 5361] <... write resumed>) = 2 [pid 5080] <... close resumed>) = 0 [pid 5364] <... madvise resumed>) = 0 [pid 5363] write(3, "1", 1 [pid 5365] <... setpgid resumed>) = 0 [pid 5361] exit_group(0 [pid 5080] rmdir("./47" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5363] <... write resumed>) = 1 [pid 5361] <... exit_group resumed>) = ? [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5364] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5363] write(3, "\x32\x00", 2 [pid 5361] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] mkdir("./48", 0777 [pid 5365] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] write(3, "1000", 4 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] <... write resumed>) = 4 [pid 5364] <... openat resumed>) = 3 [pid 5365] close(3 [pid 5076] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5365] <... close resumed>) = 0 [pid 5364] write(3, "1", 1 [pid 5076] <... openat resumed>) = 3 [pid 5365] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5366 [pid 5077] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5365] <... symlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5365] <... madvise resumed>) = 0 [pid 5364] <... write resumed>) = 1 [pid 5363] <... write resumed>) = 2 [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5365] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5364] write(3, "\x32\x00", 2 [pid 5363] exit_group(0 [pid 5077] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5366 attached [pid 5365] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5366] chdir("./48" [pid 5365] write(3, "1", 1 [pid 5077] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5366] <... chdir resumed>) = 0 [pid 5365] <... write resumed>) = 1 [pid 5364] <... write resumed>) = 2 [pid 5363] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] lstat("./47/binderfs", [pid 5366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5365] write(3, "\x32\x00", 2 [pid 5077] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5366] <... prctl resumed>) = 0 [pid 5365] <... write resumed>) = 2 [pid 5364] exit_group(0 [pid 5363] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./47/binderfs" [pid 5366] setpgid(0, 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5077] lstat("./47/binderfs", [pid 5366] <... setpgid resumed>) = 0 [pid 5366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5366] <... openat resumed>) = 3 [pid 5365] exit_group(0 [pid 5077] unlink("./47/binderfs" [pid 5076] getdents64(3, [pid 5366] write(3, "1000", 4 [pid 5365] <... exit_group resumed>) = ? [pid 5366] <... write resumed>) = 4 [pid 5365] +++ exited with 0 +++ [pid 5364] <... exit_group resumed>) = ? [pid 5079] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5366] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5366] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5076] close(3 [pid 5366] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5366] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] close(3 [pid 5076] rmdir("./47" [pid 5366] <... madvise resumed>) = 0 [pid 5366] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5366] <... openat resumed>) = 3 [pid 5077] rmdir("./47" [pid 5076] <... rmdir resumed>) = 0 [pid 5366] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5366] <... write resumed>) = 1 [pid 5366] write(3, "\x32\x00", 2) = 2 [pid 5364] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5079] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5076] mkdir("./48", 0777 [pid 5366] exit_group(0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] mkdir("./48", 0777 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5366] <... exit_group resumed>) = ? [pid 5366] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5079] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] lstat("./47/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] lstat("./48/binderfs", [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5367 attached [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] unlink("./47/binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5367 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5368 [pid 5075] getdents64(3, [pid 5081] unlink("./48/binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5367] chdir("./48" [pid 5081] <... unlink resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5075] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5368 attached [pid 5367] <... chdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] fstat(3, [pid 5079] close(3 [pid 5075] lstat("./43/binderfs", [pid 5367] <... prctl resumed>) = 0 [pid 5081] close(3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] getdents64(3, [pid 5367] setpgid(0, 0 [pid 5081] rmdir("./48" [pid 5079] rmdir("./47" [pid 5075] unlink("./43/binderfs" [pid 5367] <... setpgid resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5368] chdir("./48" [pid 5081] <... rmdir resumed>) = 0 [pid 5368] <... chdir resumed>) = 0 [pid 5080] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] mkdir("./49", 0777 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./48", 0777 [pid 5075] getdents64(3, [pid 5368] <... prctl resumed>) = 0 [pid 5368] setpgid(0, 0) = 0 [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5080] lstat("./48/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5368] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5368] write(3, "1000", 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5368] <... write resumed>) = 4 [pid 5368] close(3) = 0 [pid 5368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] unlink("./48/binderfs" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5368] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5075] rmdir("./43" [pid 5368] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5368] write(3, "1", 1) = 1 [pid 5368] write(3, "\x32\x00", 2 [pid 5075] <... rmdir resumed>) = 0 [pid 5368] <... write resumed>) = 2 [pid 5367] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5369 [pid 5080] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5370 [pid 5075] mkdir("./44", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5368] exit_group(0 [pid 5080] close(3 [pid 5368] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5370 attached [pid 5368] +++ exited with 0 +++ [pid 5367] write(3, "1000", 4 [pid 5080] <... close resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5080] rmdir("./48" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5367] <... write resumed>) = 4 ./strace-static-x86_64: Process 5369 attached [pid 5370] chdir("./48" [pid 5080] <... rmdir resumed>) = 0 [pid 5370] <... chdir resumed>) = 0 [pid 5369] chdir("./49" [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5369] <... chdir resumed>) = 0 [pid 5370] <... prctl resumed>) = 0 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] mkdir("./49", 0777 [pid 5367] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5371 [pid 5370] setpgid(0, 0 [pid 5369] <... prctl resumed>) = 0 [pid 5370] <... setpgid resumed>) = 0 [pid 5369] setpgid(0, 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... mkdir resumed>) = 0 [pid 5367] <... close resumed>) = 0 [pid 5076] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5367] symlink("/dev/binderfs", "./binderfs" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5371 attached [pid 5370] <... openat resumed>) = 3 [pid 5369] <... setpgid resumed>) = 0 [pid 5371] chdir("./44" [pid 5370] write(3, "1000", 4 [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5367] <... symlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5372 attached [pid 5371] <... chdir resumed>) = 0 [pid 5370] <... write resumed>) = 4 [pid 5369] <... openat resumed>) = 3 [pid 5367] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5372 [pid 5076] <... openat resumed>) = 3 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5370] close(3 [pid 5369] write(3, "1000", 4 [pid 5371] <... prctl resumed>) = 0 [pid 5370] <... close resumed>) = 0 [pid 5369] <... write resumed>) = 4 [pid 5076] fstat(3, [pid 5371] setpgid(0, 0 [pid 5370] symlink("/dev/binderfs", "./binderfs" [pid 5369] close(3 [pid 5367] <... madvise resumed>) = 0 [pid 5371] <... setpgid resumed>) = 0 [pid 5370] <... symlink resumed>) = 0 [pid 5369] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5372] chdir("./49" [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5369] symlink("/dev/binderfs", "./binderfs" [pid 5367] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5372] <... chdir resumed>) = 0 [pid 5371] <... openat resumed>) = 3 [pid 5370] <... madvise resumed>) = 0 [pid 5369] <... symlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5371] write(3, "1000", 4 [pid 5370] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5369] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5367] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5372] <... prctl resumed>) = 0 [pid 5371] <... write resumed>) = 4 [pid 5370] <... openat resumed>) = 3 [pid 5369] <... madvise resumed>) = 0 [pid 5076] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] setpgid(0, 0 [pid 5371] close(3 [pid 5370] write(3, "1", 1 [pid 5369] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5367] write(3, "1", 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... setpgid resumed>) = 0 [pid 5371] <... close resumed>) = 0 [pid 5370] <... write resumed>) = 1 [pid 5369] <... openat resumed>) = 3 [pid 5367] <... write resumed>) = 1 [pid 5076] lstat("./48/binderfs", [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5371] symlink("/dev/binderfs", "./binderfs" [pid 5370] write(3, "\x32\x00", 2 [pid 5369] write(3, "1", 1 [pid 5367] write(3, "\x32\x00", 2 [pid 5372] <... openat resumed>) = 3 [pid 5371] <... symlink resumed>) = 0 [pid 5370] <... write resumed>) = 2 [pid 5369] <... write resumed>) = 1 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5371] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5370] exit_group(0 [pid 5369] write(3, "\x32\x00", 2 [pid 5371] <... madvise resumed>) = 0 [pid 5370] <... exit_group resumed>) = ? [pid 5369] <... write resumed>) = 2 [pid 5367] <... write resumed>) = 2 [pid 5076] unlink("./48/binderfs" [pid 5372] write(3, "1000", 4 [pid 5371] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5370] +++ exited with 0 +++ [pid 5369] exit_group(0 [pid 5372] <... write resumed>) = 4 [pid 5371] <... openat resumed>) = 3 [pid 5369] <... exit_group resumed>) = ? [pid 5367] exit_group(0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... unlink resumed>) = 0 [pid 5372] close(3 [pid 5371] write(3, "1", 1 [pid 5369] +++ exited with 0 +++ [pid 5367] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5372] <... close resumed>) = 0 [pid 5371] <... write resumed>) = 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5372] symlink("/dev/binderfs", "./binderfs" [pid 5371] write(3, "\x32\x00", 2 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5372] <... symlink resumed>) = 0 [pid 5371] <... write resumed>) = 2 [pid 5367] +++ exited with 0 +++ [pid 5081] <... restart_syscall resumed>) = 0 [pid 5076] close(3 [pid 5372] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5371] exit_group(0 [pid 5076] <... close resumed>) = 0 [pid 5371] <... exit_group resumed>) = ? [pid 5372] <... madvise resumed>) = 0 [pid 5371] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] rmdir("./48" [pid 5079] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./49", 0777 [pid 5075] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5077] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] fstat(3, [pid 5079] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5372] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 [pid 5372] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5079] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5373 attached [pid 5372] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] fstat(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5373] chdir("./49" [pid 5372] write(3, "\x32\x00", 2 [pid 5081] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5373 [pid 5075] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./44/binderfs") = 0 [pid 5372] <... write resumed>) = 2 [pid 5075] getdents64(3, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./49/binderfs", [pid 5077] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] lstat("./48/binderfs", [pid 5075] close(3 [pid 5372] exit_group(0 [pid 5081] unlink("./49/binderfs" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... close resumed>) = 0 [pid 5075] rmdir("./44" [pid 5372] <... exit_group resumed>) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5079] unlink("./48/binderfs" [pid 5077] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5075] mkdir("./45", 0777 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5081] close(3 [pid 5079] getdents64(3, [pid 5077] lstat("./48/binderfs", [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5372] +++ exited with 0 +++ [pid 5373] <... chdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] rmdir("./49" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] close(3 [pid 5077] unlink("./48/binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5374 ./strace-static-x86_64: Process 5374 attached [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5374] chdir("./45" [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5081] mkdir("./50", 0777 [pid 5080] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./48" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5374] <... chdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5374] setpgid(0, 0) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... rmdir resumed>) = 0 [pid 5077] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5079] mkdir("./49", 0777 [pid 5077] <... close resumed>) = 0 [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] rmdir("./48" [pid 5374] write(3, "1000", 4) = 4 [pid 5374] close(3) = 0 [pid 5374] symlink("/dev/binderfs", "./binderfs" [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5374] <... symlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5374] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] mkdir("./49", 0777 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5375 [pid 5080] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5375 attached [pid 5374] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] chdir("./50" [pid 5374] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] lstat("./49/binderfs", [pid 5077] <... mkdir resumed>) = 0 [pid 5375] <... chdir resumed>) = 0 [pid 5374] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5374] write(3, "1", 1 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] unlink("./49/binderfs" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5376 [pid 5375] <... prctl resumed>) = 0 [pid 5374] <... write resumed>) = 1 [pid 5080] <... unlink resumed>) = 0 [pid 5375] setpgid(0, 0 [pid 5374] write(3, "\x32\x00", 2 [pid 5375] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5377 attached [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5374] <... write resumed>) = 2 [pid 5373] <... prctl resumed>) = 0 [pid 5080] getdents64(3, [pid 5375] <... openat resumed>) = 3 [pid 5374] exit_group(0 [pid 5373] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5377 [pid 5375] write(3, "1000", 4 [pid 5374] <... exit_group resumed>) = ? [pid 5080] close(3./strace-static-x86_64: Process 5376 attached [pid 5377] chdir("./49" [pid 5375] <... write resumed>) = 4 [pid 5374] +++ exited with 0 +++ [pid 5373] <... setpgid resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5377] <... chdir resumed>) = 0 [pid 5376] chdir("./49" [pid 5375] close(3 [pid 5080] rmdir("./49" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] <... chdir resumed>) = 0 [pid 5375] <... close resumed>) = 0 [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... rmdir resumed>) = 0 [pid 5377] <... prctl resumed>) = 0 [pid 5376] <... prctl resumed>) = 0 [pid 5375] <... symlink resumed>) = 0 [pid 5373] <... openat resumed>) = 3 [pid 5080] mkdir("./50", 0777 [pid 5075] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] setpgid(0, 0 [pid 5376] setpgid(0, 0 [pid 5375] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5373] write(3, "1000", 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5377] <... setpgid resumed>) = 0 [pid 5376] <... setpgid resumed>) = 0 [pid 5375] <... madvise resumed>) = 0 [pid 5373] <... write resumed>) = 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5373] close(3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 [pid 5376] <... openat resumed>) = 3 [pid 5375] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5376] write(3, "1000", 4 [pid 5375] write(3, "1", 1 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5376] <... write resumed>) = 4 [pid 5375] <... write resumed>) = 1 [pid 5075] getdents64(3, [pid 5376] close(3 [pid 5375] write(3, "\x32\x00", 2 [pid 5373] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5377] <... openat resumed>) = 3 [pid 5376] <... close resumed>) = 0 [pid 5375] <... write resumed>) = 2 [pid 5373] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5378 [pid 5075] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] write(3, "1000", 4 [pid 5376] symlink("/dev/binderfs", "./binderfs" [pid 5375] exit_group(0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5378 attached [pid 5377] <... write resumed>) = 4 [pid 5376] <... symlink resumed>) = 0 [pid 5375] <... exit_group resumed>) = ? [pid 5373] <... symlink resumed>) = 0 [pid 5075] lstat("./45/binderfs", [pid 5378] chdir("./50" [pid 5377] close(3 [pid 5376] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5375] +++ exited with 0 +++ [pid 5373] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5378] <... chdir resumed>) = 0 [pid 5377] <... close resumed>) = 0 [pid 5376] <... madvise resumed>) = 0 [pid 5075] unlink("./45/binderfs" [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5376] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5373] <... madvise resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... unlink resumed>) = 0 [pid 5378] <... prctl resumed>) = 0 [pid 5377] <... symlink resumed>) = 0 [pid 5376] <... openat resumed>) = 3 [pid 5373] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] getdents64(3, [pid 5378] setpgid(0, 0 [pid 5377] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5376] write(3, "1", 1 [pid 5373] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5377] <... madvise resumed>) = 0 [pid 5376] <... write resumed>) = 1 [pid 5075] close(3 [pid 5373] write(3, "1", 1 [pid 5378] <... setpgid resumed>) = 0 [pid 5377] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5376] write(3, "\x32\x00", 2 [pid 5373] <... write resumed>) = 1 [pid 5075] <... close resumed>) = 0 [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] <... openat resumed>) = 3 [pid 5376] <... write resumed>) = 2 [pid 5373] write(3, "\x32\x00", 2 [pid 5075] rmdir("./45" [pid 5378] <... openat resumed>) = 3 [pid 5377] write(3, "1", 1 [pid 5376] exit_group(0 [pid 5373] <... write resumed>) = 2 [pid 5075] <... rmdir resumed>) = 0 [pid 5378] write(3, "1000", 4 [pid 5377] <... write resumed>) = 1 [pid 5376] <... exit_group resumed>) = ? [pid 5373] exit_group(0 [pid 5081] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./46", 0777 [pid 5378] <... write resumed>) = 4 [pid 5377] write(3, "\x32\x00", 2 [pid 5376] +++ exited with 0 +++ [pid 5373] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5378] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5379 ./strace-static-x86_64: Process 5379 attached [pid 5379] chdir("./46") = 0 [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5379] setpgid(0, 0) = 0 [pid 5377] <... write resumed>) = 2 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5379] write(3, "1000", 4) = 4 [pid 5373] +++ exited with 0 +++ [pid 5379] close(3 [pid 5081] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5378] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5378] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5377] exit_group(0 [pid 5081] fstat(3, [pid 5079] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5379] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5081] lstat("./50/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5378] <... symlink resumed>) = 0 [pid 5076] fstat(3, [pid 5377] <... exit_group resumed>) = ? [pid 5379] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5378] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] unlink("./50/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5379] <... symlink resumed>) = 0 [pid 5378] <... madvise resumed>) = 0 [pid 5076] getdents64(3, [pid 5081] <... unlink resumed>) = 0 [pid 5379] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] getdents64(3, [pid 5379] <... madvise resumed>) = 0 [pid 5378] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5378] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5079] lstat("./49/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5379] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./49/binderfs", [pid 5379] write(3, "1", 1 [pid 5378] write(3, "1", 1 [pid 5377] +++ exited with 0 +++ [pid 5081] rmdir("./50" [pid 5079] unlink("./49/binderfs" [pid 5379] <... write resumed>) = 1 [pid 5378] <... write resumed>) = 1 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5379] write(3, "\x32\x00", 2 [pid 5378] write(3, "\x32\x00", 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] unlink("./49/binderfs" [pid 5379] <... write resumed>) = 2 [pid 5378] <... write resumed>) = 2 [pid 5081] mkdir("./51", 0777 [pid 5079] getdents64(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5379] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5379] <... exit_group resumed>) = ? [pid 5379] +++ exited with 0 +++ [pid 5378] exit_group(0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] close(3 [pid 5076] getdents64(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... close resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] rmdir("./49" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5380 [pid 5079] mkdir("./50", 0777 [pid 5378] <... exit_group resumed>) = ? [pid 5077] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5075] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./49" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5380 attached [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./46/binderfs", [pid 5380] chdir("./51" [pid 5077] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5380] <... chdir resumed>) = 0 [pid 5077] fstat(3, [pid 5076] mkdir("./50", 0777 [pid 5075] unlink("./46/binderfs" [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5381 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5380] <... prctl resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5380] setpgid(0, 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5378] +++ exited with 0 +++ [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5380] <... setpgid resumed>) = 0 [pid 5077] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3./strace-static-x86_64: Process 5381 attached [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5381] chdir("./50" [pid 5380] <... openat resumed>) = 3 [pid 5080] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./49/binderfs", [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5382 [pid 5075] rmdir("./46"./strace-static-x86_64: Process 5382 attached [pid 5381] <... chdir resumed>) = 0 [pid 5380] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] <... write resumed>) = 4 [pid 5080] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] unlink("./49/binderfs" [pid 5075] mkdir("./47", 0777 [pid 5382] chdir("./50" [pid 5381] <... prctl resumed>) = 0 [pid 5380] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5382] <... chdir resumed>) = 0 [pid 5381] setpgid(0, 0 [pid 5380] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5080] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5383 attached [pid 5382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] <... setpgid resumed>) = 0 [pid 5380] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5383] chdir("./47" [pid 5382] <... prctl resumed>) = 0 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] <... symlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5383 [pid 5383] <... chdir resumed>) = 0 [pid 5382] setpgid(0, 0 [pid 5381] <... openat resumed>) = 3 [pid 5380] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... close resumed>) = 0 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5382] <... setpgid resumed>) = 0 [pid 5381] write(3, "1000", 4 [pid 5380] <... madvise resumed>) = 0 [pid 5080] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./49" [pid 5383] <... prctl resumed>) = 0 [pid 5382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5381] <... write resumed>) = 4 [pid 5380] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5383] setpgid(0, 0 [pid 5382] <... openat resumed>) = 3 [pid 5381] close(3 [pid 5380] <... openat resumed>) = 3 [pid 5080] lstat("./50/binderfs", [pid 5077] mkdir("./50", 0777 [pid 5383] <... setpgid resumed>) = 0 [pid 5382] write(3, "1000", 4 [pid 5381] <... close resumed>) = 0 [pid 5380] write(3, "1", 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5382] <... write resumed>) = 4 [pid 5381] symlink("/dev/binderfs", "./binderfs" [pid 5380] <... write resumed>) = 1 [pid 5080] unlink("./50/binderfs" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5384 attached [pid 5383] <... openat resumed>) = 3 [pid 5382] close(3 [pid 5381] <... symlink resumed>) = 0 [pid 5380] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5384] chdir("./50" [pid 5383] write(3, "1000", 4 [pid 5382] <... close resumed>) = 0 [pid 5381] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5380] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5384 [pid 5384] <... chdir resumed>) = 0 [pid 5383] <... write resumed>) = 4 [pid 5382] symlink("/dev/binderfs", "./binderfs" [pid 5381] <... madvise resumed>) = 0 [pid 5380] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5383] close(3 [pid 5382] <... symlink resumed>) = 0 [pid 5381] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5380] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5384] <... prctl resumed>) = 0 [pid 5383] <... close resumed>) = 0 [pid 5382] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5381] <... openat resumed>) = 3 [pid 5380] +++ exited with 0 +++ [pid 5080] <... close resumed>) = 0 [pid 5384] setpgid(0, 0 [pid 5383] symlink("/dev/binderfs", "./binderfs" [pid 5382] <... madvise resumed>) = 0 [pid 5381] write(3, "1", 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] rmdir("./50" [pid 5384] <... setpgid resumed>) = 0 [pid 5383] <... symlink resumed>) = 0 [pid 5382] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5381] <... write resumed>) = 1 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... rmdir resumed>) = 0 [pid 5384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5383] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5382] <... openat resumed>) = 3 [pid 5381] write(3, "\x32\x00", 2 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] mkdir("./51", 0777 [pid 5384] <... openat resumed>) = 3 [pid 5383] <... madvise resumed>) = 0 [pid 5382] write(3, "1", 1 [pid 5381] <... write resumed>) = 2 [pid 5080] <... mkdir resumed>) = 0 [pid 5382] <... write resumed>) = 1 [pid 5384] write(3, "1000", 4 [pid 5383] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5382] write(3, "\x32\x00", 2 [pid 5381] exit_group(0 [pid 5081] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5384] <... write resumed>) = 4 [pid 5383] <... openat resumed>) = 3 [pid 5383] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5384] close(3 [pid 5382] <... write resumed>) = 2 [pid 5383] <... write resumed>) = 1 [pid 5381] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5384] <... close resumed>) = 0 [pid 5383] write(3, "\x32\x00", 2 [pid 5382] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5385 [pid 5382] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5385 attached [pid 5385] chdir("./51" [pid 5384] symlink("/dev/binderfs", "./binderfs" [pid 5383] <... write resumed>) = 2 [pid 5382] +++ exited with 0 +++ [pid 5381] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5385] <... chdir resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5383] exit_group(0 [pid 5081] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5383] <... exit_group resumed>) = ? [pid 5081] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] lstat("./51/binderfs", [pid 5384] <... symlink resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5384] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] unlink("./51/binderfs" [pid 5079] fstat(3, [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] getdents64(3, [pid 5079] getdents64(3, [pid 5384] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... close resumed>) = 0 [pid 5079] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] <... openat resumed>) = 3 [pid 5081] rmdir("./51" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5383] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5079] lstat("./50/binderfs", [pid 5076] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5384] write(3, "1", 1 [pid 5081] mkdir("./52", 0777 [pid 5385] <... prctl resumed>) = 0 [pid 5384] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5385] setpgid(0, 0 [pid 5384] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] unlink("./50/binderfs" [pid 5076] fstat(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... unlink resumed>) = 0 [pid 5385] <... setpgid resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5386 [pid 5079] close(3 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] <... openat resumed>) = 3 [pid 5384] <... write resumed>) = 2 [pid 5079] rmdir("./50" [pid 5385] write(3, "1000", 4 [pid 5384] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5385] <... write resumed>) = 4 [pid 5079] mkdir("./51", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] close(3 [pid 5384] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5076] lstat("./50/binderfs", [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5386 attached [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5386] chdir("./52" [pid 5385] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, [pid 5386] <... chdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5387 [pid 5076] unlink("./50/binderfs" [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5386] <... prctl resumed>) = 0 [pid 5386] setpgid(0, 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5386] <... setpgid resumed>) = 0 [pid 5385] symlink("/dev/binderfs", "./binderfs" [pid 5076] getdents64(3, [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5386] <... openat resumed>) = 3 [pid 5385] <... symlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] write(3, "1000", 4 [pid 5385] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5386] <... write resumed>) = 4 [pid 5076] <... close resumed>) = 0 [pid 5075] lstat("./47/binderfs", [pid 5386] close(3) = 0 [pid 5386] symlink("/dev/binderfs", "./binderfs" [pid 5076] rmdir("./50" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5386] <... symlink resumed>) = 0 [pid 5385] <... madvise resumed>) = 0 [pid 5386] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5386] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5385] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] mkdir("./51", 0777 [pid 5075] unlink("./47/binderfs" [pid 5386] <... openat resumed>) = 3 [pid 5384] +++ exited with 0 +++ [pid 5386] write(3, "1", 1) = 1 [pid 5076] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5387 attached [pid 5386] write(3, "\x32\x00", 2 [pid 5385] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... unlink resumed>) = 0 [pid 5387] chdir("./51" [pid 5386] <... write resumed>) = 2 [pid 5385] write(3, "1", 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5386] exit_group(0 [pid 5385] <... write resumed>) = 1 [pid 5077] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5387] <... chdir resumed>) = 0 [pid 5386] <... exit_group resumed>) = ? [pid 5385] write(3, "\x32\x00", 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5388 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5386] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(3./strace-static-x86_64: Process 5388 attached [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5388] chdir("./51" [pid 5077] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5388] <... chdir resumed>) = 0 [pid 5077] fstat(3, [pid 5075] rmdir("./47" [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5388] <... prctl resumed>) = 0 [pid 5388] setpgid(0, 0) = 0 [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5388] <... openat resumed>) = 3 [pid 5387] <... prctl resumed>) = 0 [pid 5385] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5388] write(3, "1000", 4 [pid 5387] setpgid(0, 0 [pid 5385] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5077] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./48", 0777 [pid 5388] <... write resumed>) = 4 [pid 5387] <... setpgid resumed>) = 0 [pid 5385] <... exit_group resumed>) = ? [pid 5081] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] close(3) = 0 [pid 5388] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5388] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] lstat("./50/binderfs", [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5388] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5388] <... madvise resumed>) = 0 [pid 5388] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] unlink("./50/binderfs" [pid 5388] write(3, "1", 1 [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5389 [pid 5388] write(3, "\x32\x00", 2 [pid 5081] lstat("./52/binderfs", [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5389 attached [pid 5388] <... write resumed>) = 2 [pid 5387] <... openat resumed>) = 3 [pid 5385] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5389] chdir("./48" [pid 5388] exit_group(0 [pid 5387] write(3, "1000", 4 [pid 5081] unlink("./52/binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5389] <... chdir resumed>) = 0 [pid 5388] <... exit_group resumed>) = ? [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] +++ exited with 0 +++ [pid 5387] <... write resumed>) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5387] close(3 [pid 5081] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5077] rmdir("./50" [pid 5389] <... prctl resumed>) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5076] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5389] <... openat resumed>) = 3 [pid 5387] <... close resumed>) = 0 [pid 5081] rmdir("./52" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5389] write(3, "1000", 4 [pid 5387] symlink("/dev/binderfs", "./binderfs" [pid 5077] mkdir("./51", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5389] <... write resumed>) = 4 [pid 5389] close(3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5389] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5389] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5081] mkdir("./53", 0777 [pid 5389] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] fstat(3, [pid 5389] <... madvise resumed>) = 0 [pid 5387] <... symlink resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] fstat(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5387] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5389] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5389] write(3, "1", 1) = 1 [pid 5080] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5389] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5390 attached [pid 5390] chdir("./51") = 0 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5390] setpgid(0, 0) = 0 [pid 5389] <... write resumed>) = 2 [pid 5387] <... madvise resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5391 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5390 [pid 5076] getdents64(3, [pid 5080] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5387] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./51/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5389] exit_group(0 [pid 5387] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./51/binderfs", ./strace-static-x86_64: Process 5391 attached [pid 5390] <... openat resumed>) = 3 [pid 5389] <... exit_group resumed>) = ? [pid 5387] write(3, "1", 1 [pid 5080] unlink("./51/binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5391] chdir("./53" [pid 5390] write(3, "1000", 4 [pid 5389] +++ exited with 0 +++ [pid 5387] <... write resumed>) = 1 [pid 5391] <... chdir resumed>) = 0 [pid 5390] <... write resumed>) = 4 [pid 5080] <... unlink resumed>) = 0 [pid 5076] unlink("./51/binderfs" [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5390] close(3 [pid 5387] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5391] <... prctl resumed>) = 0 [pid 5390] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5391] setpgid(0, 0 [pid 5390] symlink("/dev/binderfs", "./binderfs" [pid 5391] <... setpgid resumed>) = 0 [pid 5390] <... symlink resumed>) = 0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5391] <... openat resumed>) = 3 [pid 5390] <... madvise resumed>) = 0 [pid 5387] <... write resumed>) = 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5391] write(3, "1000", 4 [pid 5390] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5391] <... write resumed>) = 4 [pid 5390] <... openat resumed>) = 3 [pid 5387] exit_group(0 [pid 5391] close(3 [pid 5390] write(3, "1", 1 [pid 5080] <... close resumed>) = 0 [pid 5076] close(3 [pid 5391] <... close resumed>) = 0 [pid 5390] <... write resumed>) = 1 [pid 5387] <... exit_group resumed>) = ? [pid 5080] rmdir("./51" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5391] symlink("/dev/binderfs", "./binderfs" [pid 5390] write(3, "\x32\x00", 2 [pid 5076] <... close resumed>) = 0 [pid 5391] <... symlink resumed>) = 0 [pid 5390] <... write resumed>) = 2 [pid 5387] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5076] rmdir("./51" [pid 5075] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5391] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5390] exit_group(0 [pid 5080] mkdir("./52", 0777 [pid 5391] <... madvise resumed>) = 0 [pid 5390] <... exit_group resumed>) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5391] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5390] +++ exited with 0 +++ [pid 5080] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] mkdir("./52", 0777 [pid 5075] <... openat resumed>) = 3 [pid 5391] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5391] write(3, "1", 1) = 1 [pid 5391] write(3, "\x32\x00", 2) = 2 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] fstat(3, [pid 5391] exit_group(0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5392 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5391] <... exit_group resumed>) = ? [pid 5391] +++ exited with 0 +++ [pid 5075] getdents64(3, [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5392 attached [pid 5081] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5393 [pid 5075] lstat("./48/binderfs", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5392] chdir("./52" [pid 5081] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5075] unlink("./48/binderfs" [pid 5081] fstat(3, [pid 5079] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5392] <... chdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5079] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] getdents64(3, [pid 5075] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] lstat("./51/binderfs", [pid 5077] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./51/binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5081] lstat("./53/binderfs", [pid 5392] <... prctl resumed>) = 0 [pid 5392] setpgid(0, 0) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] lstat("./51/binderfs", [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5392] <... openat resumed>) = 3 [pid 5081] unlink("./53/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] rmdir("./48" [pid 5392] write(3, "1000", 4) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5077] unlink("./51/binderfs" [pid 5392] close(3) = 0 [pid 5392] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5392] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] getdents64(3, [pid 5079] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5075] mkdir("./49", 0777 [pid 5392] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5392] <... openat resumed>) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5392] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5393 attached [pid 5392] <... write resumed>) = 1 [pid 5081] close(3 [pid 5079] rmdir("./51" [pid 5077] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5392] write(3, "\x32\x00", 2 [pid 5081] <... close resumed>) = 0 [pid 5392] <... write resumed>) = 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5081] rmdir("./53" [pid 5077] <... close resumed>) = 0 [pid 5393] chdir("./52" [pid 5392] exit_group(0 [pid 5079] mkdir("./52", 0777 [pid 5392] <... exit_group resumed>) = ? [pid 5392] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5393] <... chdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] rmdir("./51" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5394 [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] mkdir("./54", 0777 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5394 attached [pid 5394] chdir("./49" [pid 5077] <... rmdir resumed>) = 0 [pid 5394] <... chdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] mkdir("./52", 0777 [pid 5394] <... prctl resumed>) = 0 [pid 5394] setpgid(0, 0) = 0 [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5394] <... openat resumed>) = 3 [pid 5394] write(3, "1000", 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5395 [pid 5393] <... prctl resumed>) = 0 [pid 5394] <... write resumed>) = 4 [pid 5394] close(3) = 0 [pid 5394] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5394] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5395 attached ) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5395] chdir("./52" [pid 5394] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5396 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5395] <... chdir resumed>) = 0 [pid 5393] setpgid(0, 0 [pid 5080] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5397 [pid 5393] <... setpgid resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./52/binderfs", ./strace-static-x86_64: Process 5396 attached [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5394] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5396] chdir("./54" [pid 5395] <... prctl resumed>) = 0 [pid 5394] write(3, "1", 1 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] unlink("./52/binderfs" [pid 5396] <... chdir resumed>) = 0 [pid 5395] setpgid(0, 0 [pid 5394] <... write resumed>) = 1 [pid 5396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5395] <... setpgid resumed>) = 0 [pid 5394] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5397 attached [pid 5396] <... prctl resumed>) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5394] <... write resumed>) = 2 [pid 5393] <... openat resumed>) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5396] setpgid(0, 0 [pid 5395] <... openat resumed>) = 3 [pid 5394] exit_group(0 [pid 5393] write(3, "1000", 4 [pid 5080] getdents64(3, [pid 5396] <... setpgid resumed>) = 0 [pid 5395] write(3, "1000", 4 [pid 5394] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5397] chdir("./52" [pid 5396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5395] <... write resumed>) = 4 [pid 5394] +++ exited with 0 +++ [pid 5393] <... write resumed>) = 4 [pid 5080] close(3 [pid 5397] <... chdir resumed>) = 0 [pid 5396] <... openat resumed>) = 3 [pid 5395] close(3 [pid 5393] close(3 [pid 5080] <... close resumed>) = 0 [pid 5396] write(3, "1000", 4 [pid 5395] <... close resumed>) = 0 [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5396] <... write resumed>) = 4 [pid 5395] symlink("/dev/binderfs", "./binderfs" [pid 5393] <... close resumed>) = 0 [pid 5080] rmdir("./52" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5397] <... prctl resumed>) = 0 [pid 5396] close(3 [pid 5395] <... symlink resumed>) = 0 [pid 5393] symlink("/dev/binderfs", "./binderfs" [pid 5396] <... close resumed>) = 0 [pid 5395] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5396] symlink("/dev/binderfs", "./binderfs" [pid 5395] <... madvise resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5397] setpgid(0, 0 [pid 5396] <... symlink resumed>) = 0 [pid 5395] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5393] <... symlink resumed>) = 0 [pid 5080] mkdir("./53", 0777 [pid 5397] <... setpgid resumed>) = 0 [pid 5396] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5395] <... openat resumed>) = 3 [pid 5393] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... restart_syscall resumed>) = 0 [pid 5396] <... madvise resumed>) = 0 [pid 5395] write(3, "1", 1 [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5396] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5395] <... write resumed>) = 1 [pid 5393] <... madvise resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5397] <... openat resumed>) = 3 [pid 5396] <... openat resumed>) = 3 [pid 5395] write(3, "\x32\x00", 2 [pid 5393] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5397] write(3, "1000", 4 [pid 5396] write(3, "1", 1 [pid 5395] <... write resumed>) = 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5397] <... write resumed>) = 4 [pid 5396] <... write resumed>) = 1 [pid 5395] exit_group(0 [pid 5393] <... openat resumed>) = 3 [pid 5396] write(3, "\x32\x00", 2 [pid 5395] <... exit_group resumed>) = ? [pid 5397] close(3 [pid 5396] <... write resumed>) = 2 [pid 5395] +++ exited with 0 +++ [pid 5393] write(3, "1", 1 [pid 5075] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5397] <... close resumed>) = 0 [pid 5393] <... write resumed>) = 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5398 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5397] symlink("/dev/binderfs", "./binderfs" [pid 5393] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5398 attached [pid 5397] <... symlink resumed>) = 0 [pid 5396] exit_group(0 [pid 5398] chdir("./53" [pid 5396] <... exit_group resumed>) = ? [pid 5398] <... chdir resumed>) = 0 [pid 5396] +++ exited with 0 +++ [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5393] <... write resumed>) = 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5398] setpgid(0, 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] fstat(3, [pid 5397] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5398] <... setpgid resumed>) = 0 [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5397] <... madvise resumed>) = 0 [pid 5393] exit_group(0 [pid 5079] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5398] <... openat resumed>) = 3 [pid 5397] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5397] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5398] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5075] lstat("./49/binderfs", [pid 5398] <... write resumed>) = 4 [pid 5081] fstat(3, [pid 5397] write(3, "1", 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5398] close(3 [pid 5393] <... exit_group resumed>) = ? [pid 5397] <... write resumed>) = 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5398] <... close resumed>) = 0 [pid 5397] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5075] unlink("./49/binderfs" [pid 5398] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5398] <... symlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5398] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5398] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5398] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./54/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5398] <... openat resumed>) = 3 [pid 5398] write(3, "1", 1) = 1 [pid 5397] <... write resumed>) = 2 [pid 5393] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] lstat("./52/binderfs", [pid 5075] close(3 [pid 5398] write(3, "\x32\x00", 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5398] <... write resumed>) = 2 [pid 5397] exit_group(0 [pid 5081] unlink("./54/binderfs" [pid 5079] unlink("./52/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5398] exit_group(0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5398] <... exit_group resumed>) = ? [pid 5397] <... exit_group resumed>) = ? [pid 5079] <... unlink resumed>) = 0 [pid 5075] rmdir("./49" [pid 5398] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5076] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5397] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5077] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] mkdir("./50", 0777 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5081] rmdir("./54" [pid 5079] rmdir("./52" [pid 5080] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] mkdir("./55", 0777) = 0 [pid 5080] fstat(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5077] fstat(3, [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5399 attached [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] mkdir("./53", 0777./strace-static-x86_64: Process 5400 attached [pid 5399] chdir("./50" [pid 5080] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5400 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5399 [pid 5077] getdents64(3, [pid 5399] <... chdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] chdir("./55" [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5401 attached [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... chdir resumed>) = 0 [pid 5399] <... prctl resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5401 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./52/binderfs", [pid 5400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] setpgid(0, 0 [pid 5080] lstat("./53/binderfs", [pid 5077] lstat("./52/binderfs", [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5399] <... setpgid resumed>) = 0 [pid 5080] unlink("./53/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./52/binderfs" [pid 5401] chdir("./53") = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] unlink("./52/binderfs" [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... unlink resumed>) = 0 [pid 5401] <... prctl resumed>) = 0 [pid 5401] setpgid(0, 0) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5080] getdents64(3, [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5401] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5401] write(3, "1000", 4 [pid 5399] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5077] close(3 [pid 5401] <... write resumed>) = 4 [pid 5399] write(3, "1000", 4 [pid 5080] rmdir("./53" [pid 5076] <... close resumed>) = 0 [pid 5401] close(3 [pid 5077] <... close resumed>) = 0 [pid 5401] <... close resumed>) = 0 [pid 5401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5399] <... write resumed>) = 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] rmdir("./52" [pid 5076] rmdir("./52" [pid 5400] <... prctl resumed>) = 0 [pid 5401] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5399] close(3 [pid 5080] mkdir("./54", 0777 [pid 5401] <... madvise resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5401] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5077] mkdir("./53", 0777 [pid 5076] <... rmdir resumed>) = 0 [pid 5401] write(3, "1", 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] mkdir("./53", 0777 [pid 5401] <... write resumed>) = 1 [pid 5400] setpgid(0, 0 [pid 5399] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5401] write(3, "\x32\x00", 2) = 2 [pid 5400] <... setpgid resumed>) = 0 [pid 5399] symlink("/dev/binderfs", "./binderfs" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... mkdir resumed>) = 0 [pid 5401] exit_group(0) = ? [pid 5399] <... symlink resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5401] +++ exited with 0 +++ ./strace-static-x86_64: Process 5402 attached [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5402] chdir("./54") = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5402 [pid 5399] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5403 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5404 [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5402] setpgid(0, 0) = 0 [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... madvise resumed>) = 0 [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5403 attached [pid 5402] <... openat resumed>) = 3 [pid 5400] <... openat resumed>) = 3 [pid 5399] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5404 attached [pid 5403] chdir("./53" [pid 5402] write(3, "1000", 4 [pid 5400] write(3, "1000", 4 [pid 5399] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5404] chdir("./53" [pid 5403] <... chdir resumed>) = 0 [pid 5402] <... write resumed>) = 4 [pid 5400] <... write resumed>) = 4 [pid 5399] write(3, "1", 1 [pid 5079] <... openat resumed>) = 3 [pid 5404] <... chdir resumed>) = 0 [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5402] close(3 [pid 5400] close(3 [pid 5399] <... write resumed>) = 1 [pid 5079] fstat(3, [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5403] <... prctl resumed>) = 0 [pid 5402] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5399] write(3, "\x32\x00", 2 [pid 5404] <... prctl resumed>) = 0 [pid 5403] setpgid(0, 0 [pid 5402] symlink("/dev/binderfs", "./binderfs" [pid 5400] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5404] setpgid(0, 0 [pid 5403] <... setpgid resumed>) = 0 [pid 5402] <... symlink resumed>) = 0 [pid 5404] <... setpgid resumed>) = 0 [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5402] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5400] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] <... openat resumed>) = 3 [pid 5402] <... madvise resumed>) = 0 [pid 5399] <... write resumed>) = 2 [pid 5079] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... openat resumed>) = 3 [pid 5403] write(3, "1000", 4 [pid 5402] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5400] <... symlink resumed>) = 0 [pid 5399] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5404] write(3, "1000", 4 [pid 5403] <... write resumed>) = 4 [pid 5402] <... openat resumed>) = 3 [pid 5400] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5399] <... exit_group resumed>) = ? [pid 5079] lstat("./53/binderfs", [pid 5404] <... write resumed>) = 4 [pid 5403] close(3 [pid 5402] write(3, "1", 1 [pid 5404] close(3 [pid 5403] <... close resumed>) = 0 [pid 5402] <... write resumed>) = 1 [pid 5400] <... madvise resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5404] <... close resumed>) = 0 [pid 5403] symlink("/dev/binderfs", "./binderfs" [pid 5402] write(3, "\x32\x00", 2 [pid 5404] symlink("/dev/binderfs", "./binderfs" [pid 5403] <... symlink resumed>) = 0 [pid 5402] <... write resumed>) = 2 [pid 5400] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5399] +++ exited with 0 +++ [pid 5079] unlink("./53/binderfs" [pid 5404] <... symlink resumed>) = 0 [pid 5403] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5402] exit_group(0 [pid 5400] <... openat resumed>) = 3 [pid 5404] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5403] <... madvise resumed>) = 0 [pid 5402] <... exit_group resumed>) = ? [pid 5400] write(3, "1", 1 [pid 5079] <... unlink resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5404] <... madvise resumed>) = 0 [pid 5403] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5402] +++ exited with 0 +++ [pid 5400] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5404] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5403] <... openat resumed>) = 3 [pid 5400] write(3, "\x32\x00", 2 [pid 5404] <... openat resumed>) = 3 [pid 5403] write(3, "1", 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5404] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] close(3 [pid 5075] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] rmdir("./53" [pid 5075] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] mkdir("./54", 0777) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5405 [pid 5080] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5080] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./50/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./54/binderfs", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./50/binderfs" [pid 5080] unlink("./54/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5080] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5080] close(3) = 0 [pid 5075] <... close resumed>) = 0 [pid 5080] rmdir("./54" [pid 5075] rmdir("./50" [pid 5080] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5405 attached [pid 5075] <... rmdir resumed>) = 0 [pid 5080] mkdir("./55", 0777 [pid 5075] mkdir("./51", 0777 [pid 5405] chdir("./54") = 0 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5405] <... prctl resumed>) = 0 [pid 5405] setpgid(0, 0) = 0 [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5407 attached ) = 3 [pid 5404] <... write resumed>) = 1 [pid 5403] <... write resumed>) = 1 [pid 5400] <... write resumed>) = 2 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5406 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5407 [pid 5405] write(3, "1000", 4 [pid 5404] write(3, "\x32\x00", 2 [pid 5403] write(3, "\x32\x00", 2 [pid 5400] exit_group(0 [pid 5407] chdir("./51" [pid 5405] <... write resumed>) = 4 [pid 5404] <... write resumed>) = 2 [pid 5403] <... write resumed>) = 2 [pid 5407] <... chdir resumed>) = 0 [pid 5405] close(3 [pid 5404] exit_group(0 [pid 5403] exit_group(0 [pid 5400] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5406 attached [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] <... close resumed>) = 0 [pid 5404] <... exit_group resumed>) = ? [pid 5403] <... exit_group resumed>) = ? [pid 5407] <... prctl resumed>) = 0 [pid 5406] chdir("./55" [pid 5405] symlink("/dev/binderfs", "./binderfs" [pid 5404] +++ exited with 0 +++ [pid 5403] +++ exited with 0 +++ [pid 5400] +++ exited with 0 +++ [pid 5407] setpgid(0, 0 [pid 5406] <... chdir resumed>) = 0 [pid 5405] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5400, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5406] <... prctl resumed>) = 0 [pid 5405] <... madvise resumed>) = 0 [pid 5406] setpgid(0, 0 [pid 5405] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5406] <... setpgid resumed>) = 0 [pid 5405] <... openat resumed>) = 3 [pid 5081] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... setpgid resumed>) = 0 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5405] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] <... openat resumed>) = 3 [pid 5405] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5406] write(3, "1000", 4 [pid 5405] write(3, "\x32\x00", 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] <... openat resumed>) = 3 [pid 5406] <... write resumed>) = 4 [pid 5405] <... write resumed>) = 2 [pid 5081] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] write(3, "1000", 4 [pid 5406] close(3 [pid 5405] exit_group(0 [pid 5081] fstat(3, [pid 5077] <... openat resumed>) = 3 [pid 5407] <... write resumed>) = 4 [pid 5406] <... close resumed>) = 0 [pid 5405] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5407] close(3 [pid 5406] symlink("/dev/binderfs", "./binderfs" [pid 5405] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5407] <... close resumed>) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5407] symlink("/dev/binderfs", "./binderfs" [pid 5406] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5406] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5407] <... symlink resumed>) = 0 [pid 5406] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./55/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5407] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5406] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] write(3, "1", 1 [pid 5081] unlink("./55/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5407] <... madvise resumed>) = 0 [pid 5406] <... write resumed>) = 1 [pid 5077] lstat("./53/binderfs", [pid 5406] write(3, "\x32\x00", 2 [pid 5407] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5406] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5079] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... openat resumed>) = 3 [pid 5406] exit_group(0 [pid 5081] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./53/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5407] write(3, "1", 1 [pid 5406] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5407] <... write resumed>) = 1 [pid 5406] +++ exited with 0 +++ [pid 5081] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./53/binderfs", [pid 5407] write(3, "\x32\x00", 2 [pid 5081] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5081] rmdir("./55" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5081] mkdir("./56", 0777 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(3 [pid 5076] unlink("./53/binderfs" [pid 5407] <... write resumed>) = 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5407] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] rmdir("./53" [pid 5076] getdents64(3, [pid 5080] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5408 attached [pid 5407] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5408 [pid 5080] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./54/binderfs", [pid 5077] mkdir("./54", 0777 [pid 5076] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5408] chdir("./56" [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5079] unlink("./54/binderfs" [pid 5076] rmdir("./53" [pid 5080] fstat(3, [pid 5408] <... chdir resumed>) = 0 [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... rmdir resumed>) = 0 [pid 5408] <... prctl resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./54", 0777 [pid 5075] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] setpgid(0, 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5408] <... setpgid resumed>) = 0 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5409 attached [pid 5408] write(3, "1000", 4 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5409 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5409] chdir("./54" [pid 5408] <... write resumed>) = 4 [pid 5080] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 [pid 5409] <... chdir resumed>) = 0 [pid 5408] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5408] <... close resumed>) = 0 [pid 5408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5408] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5080] lstat("./55/binderfs", [pid 5079] rmdir("./54" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5410 [pid 5075] fstat(3, [pid 5408] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5408] <... openat resumed>) = 3 [pid 5408] write(3, "1", 1 [pid 5079] <... rmdir resumed>) = 0 [pid 5408] <... write resumed>) = 1 [pid 5080] unlink("./55/binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] mkdir("./55", 0777./strace-static-x86_64: Process 5410 attached [pid 5408] write(3, "\x32\x00", 2 [pid 5410] chdir("./54" [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] <... write resumed>) = 2 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5410] <... chdir resumed>) = 0 [pid 5409] <... prctl resumed>) = 0 [pid 5408] exit_group(0 [pid 5080] getdents64(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5410] <... prctl resumed>) = 0 [pid 5409] setpgid(0, 0 [pid 5408] +++ exited with 0 +++ [pid 5080] close(3 [pid 5075] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5411 [pid 5409] <... setpgid resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] rmdir("./55" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5075] lstat("./51/binderfs", [pid 5410] setpgid(0, 0) = 0 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5410] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] mkdir("./56", 0777 [pid 5410] write(3, "1000", 4 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] <... write resumed>) = 4 [pid 5075] unlink("./51/binderfs"./strace-static-x86_64: Process 5411 attached [pid 5410] close(3 [pid 5411] chdir("./55" [pid 5410] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5411] <... chdir resumed>) = 0 [pid 5410] symlink("/dev/binderfs", "./binderfs" [pid 5081] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... unlink resumed>) = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5411] <... prctl resumed>) = 0 [pid 5410] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5411] setpgid(0, 0 [pid 5410] <... madvise resumed>) = 0 [pid 5411] <... setpgid resumed>) = 0 [pid 5410] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] <... openat resumed>) = 3 [pid 5409] write(3, "1000", 4 [pid 5075] getdents64(3, [pid 5411] <... openat resumed>) = 3 [pid 5410] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5412 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5409] <... write resumed>) = 4 [pid 5411] write(3, "1000", 4 [pid 5410] <... write resumed>) = 1 [pid 5081] fstat(3, ./strace-static-x86_64: Process 5412 attached [pid 5411] <... write resumed>) = 4 [pid 5410] write(3, "\x32\x00", 2 [pid 5075] close(3 [pid 5412] chdir("./56" [pid 5411] close(3 [pid 5410] <... write resumed>) = 2 [pid 5409] close(3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5412] <... chdir resumed>) = 0 [pid 5411] <... close resumed>) = 0 [pid 5410] exit_group(0 [pid 5081] getdents64(3, [pid 5075] rmdir("./51" [pid 5412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5411] symlink("/dev/binderfs", "./binderfs" [pid 5410] <... exit_group resumed>) = ? [pid 5409] <... close resumed>) = 0 [pid 5412] <... prctl resumed>) = 0 [pid 5411] <... symlink resumed>) = 0 [pid 5410] +++ exited with 0 +++ [pid 5409] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... rmdir resumed>) = 0 [pid 5412] setpgid(0, 0 [pid 5411] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] mkdir("./52", 0777 [pid 5412] <... setpgid resumed>) = 0 [pid 5411] <... madvise resumed>) = 0 [pid 5409] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5409] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] lstat("./56/binderfs", [pid 5075] <... mkdir resumed>) = 0 [pid 5412] <... openat resumed>) = 3 [pid 5411] <... openat resumed>) = 3 [pid 5412] write(3, "1000", 4 [pid 5411] write(3, "1", 1 [pid 5409] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5412] <... write resumed>) = 4 [pid 5411] <... write resumed>) = 1 [pid 5081] unlink("./56/binderfs" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5409] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5412] close(3 [pid 5411] write(3, "\x32\x00", 2 [pid 5412] <... close resumed>) = 0 [pid 5411] <... write resumed>) = 2 [pid 5409] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5412] symlink("/dev/binderfs", "./binderfs" [pid 5411] exit_group(0 [pid 5409] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5076] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5413 [pid 5412] <... symlink resumed>) = 0 [pid 5411] <... exit_group resumed>) = ? [pid 5409] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5412] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5411] +++ exited with 0 +++ [pid 5409] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5412] <... madvise resumed>) = 0 [pid 5412] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5412] write(3, "1", 1) = 1 [pid 5409] <... write resumed>) = 2 [pid 5412] write(3, "\x32\x00", 2) = 2 [pid 5409] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5409] <... exit_group resumed>) = ? [pid 5081] rmdir("./56" [pid 5076] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5413 attached [pid 5412] exit_group(0 [pid 5413] chdir("./52" [pid 5412] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5076] fstat(3, [pid 5081] mkdir("./57", 0777 [pid 5079] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5413] <... chdir resumed>) = 0 [pid 5412] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5413] setpgid(0, 0) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5409] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 3 [pid 5076] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5414 [pid 5413] write(3, "1000", 4) = 4 [pid 5080] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5413] close(3./strace-static-x86_64: Process 5414 attached ) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] lstat("./54/binderfs", [pid 5414] chdir("./57" [pid 5413] symlink("/dev/binderfs", "./binderfs" [pid 5080] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5077] <... restart_syscall resumed>) = 0 [pid 5414] <... chdir resumed>) = 0 [pid 5413] <... symlink resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5413] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... openat resumed>) = 3 [pid 5414] <... prctl resumed>) = 0 [pid 5413] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] fstat(3, [pid 5076] unlink("./54/binderfs" [pid 5414] setpgid(0, 0 [pid 5413] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... setpgid resumed>) = 0 [pid 5413] <... openat resumed>) = 3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5077] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5079] lstat("./55/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5414] <... openat resumed>) = 3 [pid 5413] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5414] write(3, "1000", 4 [pid 5413] write(3, "\x32\x00", 2 [pid 5080] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5414] <... write resumed>) = 4 [pid 5413] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./55/binderfs" [pid 5077] <... openat resumed>) = 3 [pid 5076] close(3 [pid 5414] close(3 [pid 5413] exit_group(0 [pid 5080] lstat("./56/binderfs", [pid 5414] <... close resumed>) = 0 [pid 5413] <... exit_group resumed>) = ? [pid 5079] <... unlink resumed>) = 0 [pid 5414] symlink("/dev/binderfs", "./binderfs" [pid 5413] +++ exited with 0 +++ [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5077] fstat(3, [pid 5076] <... close resumed>) = 0 [pid 5414] <... symlink resumed>) = 0 [pid 5080] unlink("./56/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] rmdir("./54" [pid 5414] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] close(3 [pid 5414] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5414] write(3, "1", 1 [pid 5079] rmdir("./55" [pid 5414] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] mkdir("./55", 0777 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5414] write(3, "\x32\x00", 2) = 2 [pid 5080] close(3 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5414] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5079] mkdir("./56", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5414] <... exit_group resumed>) = ? [pid 5080] rmdir("./56" [pid 5414] +++ exited with 0 +++ [pid 5079] <... mkdir resumed>) = 0 [pid 5077] lstat("./54/binderfs", [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5415 attached [pid 5080] <... rmdir resumed>) = 0 [pid 5077] unlink("./54/binderfs" [pid 5075] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] mkdir("./57", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5415 [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] chdir("./55" [pid 5077] getdents64(3, [pid 5075] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5415] <... chdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] fstat(3, [pid 5081] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5416 [pid 5077] close(3./strace-static-x86_64: Process 5416 attached [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5415] <... prctl resumed>) = 0 [pid 5415] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5081] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5417 [pid 5077] rmdir("./54" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] chdir("./56" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./55", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5416] <... chdir resumed>) = 0 [pid 5081] getdents64(3, ./strace-static-x86_64: Process 5417 attached [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5415] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] lstat("./52/binderfs", [pid 5417] chdir("./57" [pid 5416] <... prctl resumed>) = 0 [pid 5415] write(3, "1000", 4 [pid 5081] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5417] <... chdir resumed>) = 0 [pid 5415] <... write resumed>) = 4 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5415] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5417] <... prctl resumed>) = 0 [pid 5415] <... close resumed>) = 0 [pid 5417] setpgid(0, 0 [pid 5415] symlink("/dev/binderfs", "./binderfs" [pid 5417] <... setpgid resumed>) = 0 [pid 5415] <... symlink resumed>) = 0 [pid 5081] lstat("./57/binderfs", [pid 5075] unlink("./52/binderfs" [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5417] <... openat resumed>) = 3 [pid 5415] <... madvise resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5418 [pid 5075] <... unlink resumed>) = 0 [pid 5417] write(3, "1000", 4 [pid 5416] setpgid(0, 0 [pid 5415] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./57/binderfs"./strace-static-x86_64: Process 5418 attached [pid 5417] <... write resumed>) = 4 [pid 5416] <... setpgid resumed>) = 0 [pid 5415] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5418] chdir("./55" [pid 5417] close(3 [pid 5415] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5418] <... chdir resumed>) = 0 [pid 5417] <... close resumed>) = 0 [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5417] symlink("/dev/binderfs", "./binderfs" [pid 5418] <... prctl resumed>) = 0 [pid 5417] <... symlink resumed>) = 0 [pid 5416] <... openat resumed>) = 3 [pid 5415] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5418] setpgid(0, 0 [pid 5417] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5416] write(3, "1000", 4 [pid 5415] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5075] <... close resumed>) = 0 [pid 5418] <... setpgid resumed>) = 0 [pid 5417] <... madvise resumed>) = 0 [pid 5416] <... write resumed>) = 4 [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5417] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5418] <... openat resumed>) = 3 [pid 5417] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5075] rmdir("./52" [pid 5418] write(3, "1000", 4 [pid 5417] write(3, "1", 1 [pid 5081] rmdir("./57" [pid 5418] <... write resumed>) = 4 [pid 5417] <... write resumed>) = 1 [pid 5075] <... rmdir resumed>) = 0 [pid 5418] close(3 [pid 5417] write(3, "\x32\x00", 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5418] <... close resumed>) = 0 [pid 5417] <... write resumed>) = 2 [pid 5416] close(3 [pid 5415] <... write resumed>) = 2 [pid 5081] mkdir("./58", 0777 [pid 5075] mkdir("./53", 0777 [pid 5418] symlink("/dev/binderfs", "./binderfs" [pid 5417] exit_group(0 [pid 5418] <... symlink resumed>) = 0 [pid 5417] <... exit_group resumed>) = ? [pid 5081] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5418] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5417] +++ exited with 0 +++ [pid 5416] <... close resumed>) = 0 [pid 5415] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5419 attached [pid 5418] <... madvise resumed>) = 0 [pid 5416] symlink("/dev/binderfs", "./binderfs" [pid 5415] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5420 attached [pid 5419] chdir("./58" [pid 5418] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5419 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5419] <... chdir resumed>) = 0 [pid 5418] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5420 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] write(3, "1", 1 [pid 5416] <... symlink resumed>) = 0 [pid 5415] +++ exited with 0 +++ [pid 5080] <... restart_syscall resumed>) = 0 [pid 5420] chdir("./53" [pid 5419] <... prctl resumed>) = 0 [pid 5418] <... write resumed>) = 1 [pid 5416] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5420] <... chdir resumed>) = 0 [pid 5419] setpgid(0, 0 [pid 5418] write(3, "\x32\x00", 2 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] <... setpgid resumed>) = 0 [pid 5416] <... madvise resumed>) = 0 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5419] write(3, "1000", 4 [pid 5420] <... prctl resumed>) = 0 [pid 5419] <... write resumed>) = 4 [pid 5418] <... write resumed>) = 2 [pid 5416] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] close(3) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5419] symlink("/dev/binderfs", "./binderfs" [pid 5416] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5419] <... symlink resumed>) = 0 [pid 5418] exit_group(0 [pid 5416] write(3, "1", 1 [pid 5419] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... openat resumed>) = 3 [pid 5420] setpgid(0, 0 [pid 5419] <... madvise resumed>) = 0 [pid 5418] <... exit_group resumed>) = ? [pid 5416] <... write resumed>) = 1 [pid 5076] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5419] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5419] <... openat resumed>) = 3 [pid 5416] write(3, "\x32\x00", 2 [pid 5076] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5419] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5419] <... write resumed>) = 1 [pid 5076] <... openat resumed>) = 3 [pid 5419] write(3, "\x32\x00", 2) = 2 [pid 5416] <... write resumed>) = 2 [pid 5419] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] fstat(3, [pid 5419] <... exit_group resumed>) = ? [pid 5080] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] +++ exited with 0 +++ [pid 5418] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5420] <... setpgid resumed>) = 0 [pid 5416] exit_group(0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] lstat("./57/binderfs", [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] getdents64(3, [pid 5416] <... exit_group resumed>) = ? [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] unlink("./57/binderfs" [pid 5076] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... unlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5076] lstat("./55/binderfs", [pid 5080] getdents64(3, [pid 5081] fstat(3, [pid 5077] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] close(3 [pid 5077] getdents64(3, [pid 5076] unlink("./55/binderfs" [pid 5081] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5080] rmdir("./57" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./55/binderfs", [pid 5076] getdents64(3, [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] lstat("./58/binderfs", [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5420] <... openat resumed>) = 3 [pid 5416] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] mkdir("./58", 0777 [pid 5077] unlink("./55/binderfs" [pid 5076] close(3 [pid 5081] unlink("./58/binderfs" [pid 5420] write(3, "1000", 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5420] <... write resumed>) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5420] close(3 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5420] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] close(3 [pid 5076] rmdir("./55"./strace-static-x86_64: Process 5421 attached [pid 5420] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5421] chdir("./58" [pid 5420] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5421 [pid 5077] rmdir("./55" [pid 5076] <... rmdir resumed>) = 0 [pid 5421] <... chdir resumed>) = 0 [pid 5420] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] <... madvise resumed>) = 0 [pid 5081] rmdir("./58" [pid 5079] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5076] mkdir("./56", 0777 [pid 5421] <... prctl resumed>) = 0 [pid 5420] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] setpgid(0, 0 [pid 5420] write(3, "1", 1 [pid 5081] mkdir("./59", 0777 [pid 5079] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./56", 0777 [pid 5076] <... mkdir resumed>) = 0 [pid 5421] <... setpgid resumed>) = 0 [pid 5420] <... write resumed>) = 1 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5420] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5421] <... openat resumed>) = 3 [pid 5420] <... write resumed>) = 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] fstat(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5420] exit_group(0) = ? [pid 5420] +++ exited with 0 +++ [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5421] write(3, "1000", 4 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5422 ./strace-static-x86_64: Process 5423 attached [pid 5421] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5423 [pid 5079] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5424 [pid 5421] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5423] chdir("./59" [pid 5421] <... close resumed>) = 0 [pid 5079] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5423] <... chdir resumed>) = 0 [pid 5421] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... restart_syscall resumed>) = 0 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] lstat("./56/binderfs", ./strace-static-x86_64: Process 5424 attached ./strace-static-x86_64: Process 5422 attached [pid 5423] <... prctl resumed>) = 0 [pid 5421] <... symlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5424] chdir("./56" [pid 5422] chdir("./56" [pid 5079] unlink("./56/binderfs" [pid 5075] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5424] <... chdir resumed>) = 0 [pid 5422] <... chdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5424] <... prctl resumed>) = 0 [pid 5422] <... prctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5424] setpgid(0, 0 [pid 5422] setpgid(0, 0 [pid 5079] close(3 [pid 5075] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5424] <... setpgid resumed>) = 0 [pid 5422] <... setpgid resumed>) = 0 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5423] setpgid(0, 0 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5421] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5424] <... openat resumed>) = 3 [pid 5423] <... setpgid resumed>) = 0 [pid 5422] <... openat resumed>) = 3 [pid 5079] rmdir("./56" [pid 5075] fstat(3, [pid 5424] write(3, "1000", 4 [pid 5422] write(3, "1000", 4 [pid 5421] <... madvise resumed>) = 0 [pid 5424] <... write resumed>) = 4 [pid 5422] <... write resumed>) = 4 [pid 5424] close(3 [pid 5422] close(3 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5424] <... close resumed>) = 0 [pid 5422] <... close resumed>) = 0 [pid 5421] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] mkdir("./57", 0777 [pid 5075] getdents64(3, [pid 5424] symlink("/dev/binderfs", "./binderfs" [pid 5422] symlink("/dev/binderfs", "./binderfs" [pid 5424] <... symlink resumed>) = 0 [pid 5422] <... symlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5424] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5422] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5421] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5424] <... madvise resumed>) = 0 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5422] <... madvise resumed>) = 0 [pid 5424] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5422] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5424] <... openat resumed>) = 3 [pid 5422] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5424] write(3, "1", 1 [pid 5422] write(3, "1", 1 [pid 5075] lstat("./53/binderfs", [pid 5421] write(3, "1", 1 [pid 5424] <... write resumed>) = 1 [pid 5423] <... openat resumed>) = 3 [pid 5422] <... write resumed>) = 1 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5425 [pid 5424] write(3, "\x32\x00", 2 [pid 5423] write(3, "1000", 4 [pid 5422] write(3, "\x32\x00", 2 [pid 5421] <... write resumed>) = 1 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5425 attached [pid 5424] <... write resumed>) = 2 [pid 5422] <... write resumed>) = 2 [pid 5421] write(3, "\x32\x00", 2 [pid 5075] unlink("./53/binderfs" [pid 5423] <... write resumed>) = 4 [pid 5424] exit_group(0 [pid 5422] exit_group(0 [pid 5424] <... exit_group resumed>) = ? [pid 5422] <... exit_group resumed>) = ? [pid 5075] <... unlink resumed>) = 0 [pid 5425] chdir("./57" [pid 5424] +++ exited with 0 +++ [pid 5423] close(3 [pid 5422] +++ exited with 0 +++ [pid 5421] <... write resumed>) = 2 [pid 5075] getdents64(3, [pid 5423] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5425] <... chdir resumed>) = 0 [pid 5423] symlink("/dev/binderfs", "./binderfs" [pid 5421] exit_group(0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] close(3 [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5421] <... exit_group resumed>) = ? [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5075] rmdir("./53" [pid 5423] <... symlink resumed>) = 0 [pid 5076] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5423] <... madvise resumed>) = 0 [pid 5077] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./54", 0777 [pid 5425] <... prctl resumed>) = 0 [pid 5423] <... openat resumed>) = 3 [pid 5421] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5425] setpgid(0, 0 [pid 5423] write(3, "1", 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5423] <... write resumed>) = 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5423] write(3, "\x32\x00", 2 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5077] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5423] <... write resumed>) = 2 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5423] exit_group(0 [pid 5077] getdents64(3, [pid 5423] <... exit_group resumed>) = ? [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5425] <... setpgid resumed>) = 0 [pid 5423] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5426 ./strace-static-x86_64: Process 5426 attached [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./56/binderfs", [pid 5080] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./56/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5425] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... openat resumed>) = 3 [pid 5426] chdir("./54" [pid 5425] write(3, "1000", 4 [pid 5081] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./56/binderfs" [pid 5426] <... chdir resumed>) = 0 [pid 5425] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5077] unlink("./56/binderfs" [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] close(3 [pid 5081] fstat(3, [pid 5076] <... unlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5426] <... prctl resumed>) = 0 [pid 5425] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5426] setpgid(0, 0 [pid 5425] symlink("/dev/binderfs", "./binderfs" [pid 5081] lstat("./59/binderfs", [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] close(3 [pid 5076] close(3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5081] unlink("./59/binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./56" [pid 5076] <... close resumed>) = 0 [pid 5426] <... setpgid resumed>) = 0 [pid 5425] <... symlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] lstat("./58/binderfs", [pid 5081] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] rmdir("./56" [pid 5081] rmdir("./59" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] mkdir("./57", 0777 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] unlink("./58/binderfs" [pid 5076] <... rmdir resumed>) = 0 [pid 5081] mkdir("./60", 0777) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./57", 0777./strace-static-x86_64: Process 5427 attached [pid 5426] <... openat resumed>) = 3 [pid 5425] <... madvise resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5427 [pid 5427] chdir("./60" [pid 5076] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5428 attached [pid 5080] close(3 [pid 5426] write(3, "1000", 4 [pid 5425] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5428 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] <... write resumed>) = 4 [pid 5425] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 ./strace-static-x86_64: Process 5429 attached [pid 5428] chdir("./57" [pid 5426] close(3 [pid 5425] write(3, "1", 1 [pid 5080] rmdir("./58" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5429 [pid 5428] <... chdir resumed>) = 0 [pid 5426] <... close resumed>) = 0 [pid 5425] <... write resumed>) = 1 [pid 5080] <... rmdir resumed>) = 0 [pid 5426] symlink("/dev/binderfs", "./binderfs" [pid 5429] chdir("./57" [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] write(3, "\x32\x00", 2 [pid 5080] mkdir("./59", 0777 [pid 5427] <... chdir resumed>) = 0 [pid 5426] <... symlink resumed>) = 0 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5427] setpgid(0, 0) = 0 [pid 5425] <... write resumed>) = 2 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5426] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... mkdir resumed>) = 0 [pid 5429] <... chdir resumed>) = 0 [pid 5428] <... prctl resumed>) = 0 [pid 5427] <... openat resumed>) = 3 [pid 5426] <... madvise resumed>) = 0 [pid 5425] exit_group(0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] setpgid(0, 0 [pid 5427] write(3, "1000", 4 [pid 5426] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5429] <... prctl resumed>) = 0 [pid 5428] <... setpgid resumed>) = 0 [pid 5427] <... write resumed>) = 4 [pid 5426] write(3, "1", 1 [pid 5425] <... exit_group resumed>) = ? [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5430 [pid 5426] <... write resumed>) = 1 [pid 5426] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5430 attached [pid 5430] chdir("./59") = 0 [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5430] setpgid(0, 0) = 0 [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5426] <... write resumed>) = 2 [pid 5430] <... openat resumed>) = 3 [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5430] write(3, "1000", 4) = 4 [pid 5428] <... openat resumed>) = 3 [pid 5426] exit_group(0 [pid 5430] close(3 [pid 5428] write(3, "1000", 4 [pid 5426] <... exit_group resumed>) = ? [pid 5430] <... close resumed>) = 0 [pid 5428] <... write resumed>) = 4 [pid 5427] close(3 [pid 5425] +++ exited with 0 +++ [pid 5430] symlink("/dev/binderfs", "./binderfs" [pid 5428] close(3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5430] <... symlink resumed>) = 0 [pid 5427] <... close resumed>) = 0 [pid 5428] <... close resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5430] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5428] symlink("/dev/binderfs", "./binderfs" [pid 5427] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... restart_syscall resumed>) = 0 [pid 5430] <... madvise resumed>) = 0 [pid 5426] +++ exited with 0 +++ [pid 5430] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5428] <... symlink resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5430] write(3, "1", 1 [pid 5429] setpgid(0, 0 [pid 5428] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5427] <... symlink resumed>) = 0 [pid 5079] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] <... write resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] write(3, "\x32\x00", 2 [pid 5079] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5428] <... madvise resumed>) = 0 [pid 5430] <... write resumed>) = 2 [pid 5429] <... setpgid resumed>) = 0 [pid 5427] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5430] exit_group(0 [pid 5428] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5427] <... madvise resumed>) = 0 [pid 5079] fstat(3, [pid 5075] fstat(3, [pid 5430] <... exit_group resumed>) = ? [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5430] +++ exited with 0 +++ [pid 5428] write(3, "1", 1 [pid 5427] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5429] <... openat resumed>) = 3 [pid 5428] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5429] write(3, "1000", 4 [pid 5428] write(3, "\x32\x00", 2 [pid 5427] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5430, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] <... write resumed>) = 4 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5427] write(3, "1", 1 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] lstat("./57/binderfs", [pid 5075] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] close(3 [pid 5428] <... write resumed>) = 2 [pid 5427] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] <... close resumed>) = 0 [pid 5428] exit_group(0 [pid 5427] write(3, "\x32\x00", 2 [pid 5079] unlink("./57/binderfs" [pid 5075] lstat("./54/binderfs", [pid 5429] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... exit_group resumed>) = ? [pid 5080] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] unlink("./54/binderfs" [pid 5429] <... symlink resumed>) = 0 [pid 5428] +++ exited with 0 +++ [pid 5427] <... write resumed>) = 2 [pid 5429] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5429] <... madvise resumed>) = 0 [pid 5427] exit_group(0 [pid 5080] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5429] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5427] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./57" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5429] <... openat resumed>) = 3 [pid 5427] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5429] write(3, "1", 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] mkdir("./58", 0777 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5427, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... mkdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5429] <... write resumed>) = 1 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] lstat("./59/binderfs", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./54" [pid 5429] write(3, "\x32\x00", 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5431 attached [pid 5429] <... write resumed>) = 2 [pid 5080] unlink("./59/binderfs" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5431 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5431] chdir("./58" [pid 5429] exit_group(0 [pid 5081] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... unlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./55", 0777 [pid 5431] <... chdir resumed>) = 0 [pid 5429] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5075] <... mkdir resumed>) = 0 [pid 5431] <... prctl resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5431] setpgid(0, 0 [pid 5081] fstat(3, [pid 5080] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5431] <... setpgid resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] rmdir("./59" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... rmdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] getdents64(3, [pid 5080] mkdir("./60", 0777 [pid 5077] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5432 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5432 attached [pid 5431] <... openat resumed>) = 3 [pid 5081] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... mkdir resumed>) = 0 [pid 5077] lstat("./57/binderfs", [pid 5076] getdents64(3, [pid 5432] chdir("./55" [pid 5431] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5432] <... chdir resumed>) = 0 [pid 5431] <... write resumed>) = 4 [pid 5081] lstat("./60/binderfs", [pid 5077] unlink("./57/binderfs" [pid 5076] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5433 attached [pid 5432] <... prctl resumed>) = 0 [pid 5431] close(3 [pid 5081] unlink("./60/binderfs" [pid 5077] getdents64(3, [pid 5076] lstat("./57/binderfs", [pid 5432] setpgid(0, 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5433 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5432] <... setpgid resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5076] unlink("./57/binderfs" [pid 5431] <... close resumed>) = 0 [pid 5433] chdir("./60" [pid 5432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5431] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5433] <... chdir resumed>) = 0 [pid 5432] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5432] write(3, "1000", 4 [pid 5431] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] rmdir("./57" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5433] <... prctl resumed>) = 0 [pid 5432] <... write resumed>) = 4 [pid 5431] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5076] close(3 [pid 5433] setpgid(0, 0 [pid 5432] close(3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5433] <... setpgid resumed>) = 0 [pid 5432] <... close resumed>) = 0 [pid 5431] <... madvise resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] mkdir("./58", 0777 [pid 5076] rmdir("./57" [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] symlink("/dev/binderfs", "./binderfs" [pid 5431] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] rmdir("./60" [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5433] <... openat resumed>) = 3 [pid 5432] <... symlink resumed>) = 0 [pid 5431] <... openat resumed>) = 3 [pid 5076] mkdir("./58", 0777 [pid 5433] write(3, "1000", 4 [pid 5432] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5433] <... write resumed>) = 4 [pid 5432] <... madvise resumed>) = 0 [pid 5431] write(3, "1", 1 [pid 5081] mkdir("./61", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5435 attached [pid 5433] close(3 [pid 5432] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5431] <... write resumed>) = 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5433] <... close resumed>) = 0 [pid 5432] <... openat resumed>) = 3 [pid 5431] write(3, "\x32\x00", 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5435 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5434 [pid 5433] symlink("/dev/binderfs", "./binderfs" [pid 5432] write(3, "1", 1 [pid 5433] <... symlink resumed>) = 0 [pid 5433] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5433] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5433] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5436 ./strace-static-x86_64: Process 5436 attached ./strace-static-x86_64: Process 5434 attached [pid 5436] chdir("./61" [pid 5434] chdir("./58" [pid 5436] <... chdir resumed>) = 0 [pid 5434] <... chdir resumed>) = 0 [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5436] <... prctl resumed>) = 0 [pid 5434] <... prctl resumed>) = 0 [pid 5436] setpgid(0, 0 [pid 5434] setpgid(0, 0 [pid 5436] <... setpgid resumed>) = 0 [pid 5434] <... setpgid resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5436] <... openat resumed>) = 3 [pid 5435] chdir("./58" [pid 5434] <... openat resumed>) = 3 [pid 5433] <... write resumed>) = 1 [pid 5432] <... write resumed>) = 1 [pid 5431] <... write resumed>) = 2 [pid 5436] write(3, "1000", 4 [pid 5434] write(3, "1000", 4 [pid 5433] write(3, "\x32\x00", 2 [pid 5432] write(3, "\x32\x00", 2 [pid 5436] <... write resumed>) = 4 [pid 5435] <... chdir resumed>) = 0 [pid 5434] <... write resumed>) = 4 [pid 5433] <... write resumed>) = 2 [pid 5432] <... write resumed>) = 2 [pid 5431] exit_group(0 [pid 5436] close(3 [pid 5434] close(3 [pid 5433] exit_group(0 [pid 5432] exit_group(0 [pid 5436] <... close resumed>) = 0 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] <... close resumed>) = 0 [pid 5433] <... exit_group resumed>) = ? [pid 5432] <... exit_group resumed>) = ? [pid 5431] <... exit_group resumed>) = ? [pid 5436] symlink("/dev/binderfs", "./binderfs" [pid 5435] <... prctl resumed>) = 0 [pid 5434] symlink("/dev/binderfs", "./binderfs" [pid 5433] +++ exited with 0 +++ [pid 5432] +++ exited with 0 +++ [pid 5436] <... symlink resumed>) = 0 [pid 5434] <... symlink resumed>) = 0 [pid 5431] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5435] setpgid(0, 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5432, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5436] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5434] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5436] <... madvise resumed>) = 0 [pid 5435] <... setpgid resumed>) = 0 [pid 5434] <... madvise resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5434] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5436] <... openat resumed>) = 3 [pid 5434] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5436] write(3, "1", 1 [pid 5435] <... openat resumed>) = 3 [pid 5434] write(3, "1", 1 [pid 5080] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5436] <... write resumed>) = 1 [pid 5435] write(3, "1000", 4 [pid 5434] <... write resumed>) = 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5436] write(3, "\x32\x00", 2 [pid 5435] <... write resumed>) = 4 [pid 5434] write(3, "\x32\x00", 2 [pid 5080] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5436] <... write resumed>) = 2 [pid 5435] close(3 [pid 5434] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5436] exit_group(0 [pid 5435] <... close resumed>) = 0 [pid 5434] exit_group(0 [pid 5075] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5436] <... exit_group resumed>) = ? [pid 5435] symlink("/dev/binderfs", "./binderfs" [pid 5434] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] fstat(3, [pid 5436] +++ exited with 0 +++ [pid 5435] <... symlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5435] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5434] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5435] <... madvise resumed>) = 0 [pid 5080] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5435] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5435] <... openat resumed>) = 3 [pid 5081] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./60/binderfs", [pid 5079] lstat("./58/binderfs", [pid 5075] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5435] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5435] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] unlink("./60/binderfs" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5435] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5081] fstat(3, [pid 5080] getdents64(3, [pid 5079] unlink("./58/binderfs" [pid 5075] lstat("./55/binderfs", [pid 5076] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5435] <... write resumed>) = 2 [pid 5076] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5435] exit_group(0 [pid 5081] getdents64(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(3, [pid 5076] fstat(3, [pid 5075] unlink("./55/binderfs" [pid 5435] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] close(3 [pid 5076] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./60" [pid 5079] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5081] lstat("./61/binderfs", [pid 5080] <... rmdir resumed>) = 0 [pid 5076] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5435] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] mkdir("./61", 0777 [pid 5079] rmdir("./58" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] unlink("./61/binderfs" [pid 5076] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] unlink("./58/binderfs" [pid 5075] close(3 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... unlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] mkdir("./59", 0777 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./58" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] rmdir("./55" [pid 5081] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5437 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] mkdir("./59", 0777 [pid 5081] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5437 attached [pid 5081] rmdir("./61" [pid 5077] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5439 attached ./strace-static-x86_64: Process 5438 attached [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./56", 0777 [pid 5438] chdir("./59" [pid 5437] chdir("./61" [pid 5081] mkdir("./62", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5438 [pid 5077] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5439 [pid 5437] <... chdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5438] <... chdir resumed>) = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5439] chdir("./59" [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5437] <... prctl resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5438] <... prctl resumed>) = 0 [pid 5437] setpgid(0, 0) = 0 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5077] getdents64(3, [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5440 [pid 5437] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5438] setpgid(0, 0 [pid 5437] <... symlink resumed>) = 0 [pid 5077] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5441 ./strace-static-x86_64: Process 5440 attached [pid 5438] <... setpgid resumed>) = 0 [pid 5437] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5441 attached [pid 5440] chdir("./62" [pid 5439] <... chdir resumed>) = 0 [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5437] <... madvise resumed>) = 0 [pid 5077] lstat("./58/binderfs", [pid 5441] chdir("./56" [pid 5440] <... chdir resumed>) = 0 [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5438] <... openat resumed>) = 3 [pid 5437] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5441] <... chdir resumed>) = 0 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] <... prctl resumed>) = 0 [pid 5438] write(3, "1000", 4 [pid 5437] <... openat resumed>) = 3 [pid 5077] unlink("./58/binderfs" [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5440] <... prctl resumed>) = 0 [pid 5439] setpgid(0, 0 [pid 5438] <... write resumed>) = 4 [pid 5437] write(3, "1", 1 [pid 5441] <... prctl resumed>) = 0 [pid 5440] setpgid(0, 0 [pid 5439] <... setpgid resumed>) = 0 [pid 5438] close(3 [pid 5437] <... write resumed>) = 1 [pid 5077] <... unlink resumed>) = 0 [pid 5441] setpgid(0, 0 [pid 5440] <... setpgid resumed>) = 0 [pid 5438] <... close resumed>) = 0 [pid 5437] write(3, "\x32\x00", 2 [pid 5077] getdents64(3, [pid 5441] <... setpgid resumed>) = 0 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5438] symlink("/dev/binderfs", "./binderfs" [pid 5437] <... write resumed>) = 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] <... openat resumed>) = 3 [pid 5439] <... openat resumed>) = 3 [pid 5437] exit_group(0 [pid 5441] <... openat resumed>) = 3 [pid 5440] write(3, "1000", 4 [pid 5439] write(3, "1000", 4 [pid 5438] <... symlink resumed>) = 0 [pid 5437] <... exit_group resumed>) = ? [pid 5077] close(3 [pid 5441] write(3, "1000", 4 [pid 5440] <... write resumed>) = 4 [pid 5439] <... write resumed>) = 4 [pid 5438] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5437] +++ exited with 0 +++ [pid 5077] <... close resumed>) = 0 [pid 5441] <... write resumed>) = 4 [pid 5440] close(3 [pid 5439] close(3 [pid 5441] close(3 [pid 5440] <... close resumed>) = 0 [pid 5438] <... madvise resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5439] <... close resumed>) = 0 [pid 5077] rmdir("./58" [pid 5441] <... close resumed>) = 0 [pid 5440] symlink("/dev/binderfs", "./binderfs" [pid 5438] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5441] symlink("/dev/binderfs", "./binderfs" [pid 5440] <... symlink resumed>) = 0 [pid 5439] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... rmdir resumed>) = 0 [pid 5441] <... symlink resumed>) = 0 [pid 5440] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5438] <... openat resumed>) = 3 [pid 5441] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5440] <... madvise resumed>) = 0 [pid 5439] <... symlink resumed>) = 0 [pid 5438] write(3, "1", 1 [pid 5077] mkdir("./59", 0777 [pid 5441] <... madvise resumed>) = 0 [pid 5440] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5439] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5438] <... write resumed>) = 1 [pid 5080] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5441] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5440] <... openat resumed>) = 3 [pid 5441] <... openat resumed>) = 3 [pid 5440] write(3, "1", 1 [pid 5439] <... madvise resumed>) = 0 [pid 5438] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... mkdir resumed>) = 0 [pid 5441] write(3, "1", 1 [pid 5440] <... write resumed>) = 1 [pid 5439] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5440] write(3, "\x32\x00", 2 [pid 5080] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5439] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5441] <... write resumed>) = 1 [pid 5440] <... write resumed>) = 2 [pid 5438] <... write resumed>) = 2 [pid 5441] write(3, "\x32\x00", 2 [pid 5440] exit_group(0 [pid 5439] write(3, "1", 1 [pid 5080] fstat(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5442 ./strace-static-x86_64: Process 5442 attached [pid 5441] <... write resumed>) = 2 [pid 5440] <... exit_group resumed>) = ? [pid 5439] <... write resumed>) = 1 [pid 5438] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5442] chdir("./59" [pid 5441] exit_group(0 [pid 5439] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5442] <... chdir resumed>) = 0 [pid 5441] <... exit_group resumed>) = ? [pid 5440] +++ exited with 0 +++ [pid 5438] <... exit_group resumed>) = ? [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5441] +++ exited with 0 +++ [pid 5439] <... write resumed>) = 2 [pid 5438] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5442] <... prctl resumed>) = 0 [pid 5439] exit_group(0 [pid 5080] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5442] setpgid(0, 0 [pid 5439] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5438, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5442] <... setpgid resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] lstat("./61/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5080] unlink("./61/binderfs" [pid 5081] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5079] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5442] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5442] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5079] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5442] <... write resumed>) = 4 [pid 5081] fstat(3, [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5442] close(3 [pid 5439] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] rmdir("./61" [pid 5079] fstat(3, [pid 5075] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5442] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5442] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] mkdir("./62", 0777 [pid 5079] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... openat resumed>) = 3 [pid 5081] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./62/binderfs", [pid 5076] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5079] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5075] getdents64(3, [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] unlink("./62/binderfs" [pid 5079] lstat("./59/binderfs", [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] getdents64(3, [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5443 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5442] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] unlink("./59/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5442] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5076] lstat("./59/binderfs", [pid 5079] <... unlink resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] lstat("./56/binderfs", [pid 5442] <... madvise resumed>) = 0 [pid 5081] rmdir("./62" [pid 5079] getdents64(3, [pid 5076] unlink("./59/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5443 attached [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5075] unlink("./56/binderfs" [pid 5443] chdir("./62" [pid 5442] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] mkdir("./63", 0777 [pid 5079] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5443] <... chdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... close resumed>) = 0 [pid 5443] <... prctl resumed>) = 0 [pid 5076] rmdir("./59" [pid 5443] setpgid(0, 0 [pid 5442] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] rmdir("./59" [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5443] <... setpgid resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./60", 0777 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5442] write(3, "1", 1 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5443] <... openat resumed>) = 3 [pid 5442] <... write resumed>) = 1 [pid 5079] mkdir("./60", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3./strace-static-x86_64: Process 5445 attached [pid 5443] write(3, "1000", 4 [pid 5442] write(3, "\x32\x00", 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5444 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5443] <... write resumed>) = 4 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5445 ./strace-static-x86_64: Process 5444 attached [pid 5443] close(3 [pid 5444] chdir("./63" [pid 5443] <... close resumed>) = 0 [pid 5444] <... chdir resumed>) = 0 [pid 5443] symlink("/dev/binderfs", "./binderfs" [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] <... symlink resumed>) = 0 [pid 5442] <... write resumed>) = 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./56" [pid 5444] <... prctl resumed>) = 0 [pid 5443] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5444] setpgid(0, 0 [pid 5443] <... madvise resumed>) = 0 [pid 5444] <... setpgid resumed>) = 0 [pid 5443] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] <... openat resumed>) = 3 [pid 5442] exit_group(0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5446 [pid 5075] <... rmdir resumed>) = 0 [pid 5444] <... openat resumed>) = 3 [pid 5443] write(3, "1", 1 [pid 5442] <... exit_group resumed>) = ? [pid 5075] mkdir("./57", 0777./strace-static-x86_64: Process 5446 attached [pid 5444] write(3, "1000", 4 [pid 5443] <... write resumed>) = 1 [pid 5446] chdir("./60" [pid 5444] <... write resumed>) = 4 [pid 5443] write(3, "\x32\x00", 2 [pid 5075] <... mkdir resumed>) = 0 [pid 5446] <... chdir resumed>) = 0 [pid 5445] chdir("./60" [pid 5444] close(3 [pid 5443] <... write resumed>) = 2 [pid 5442] +++ exited with 0 +++ [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] <... close resumed>) = 0 [pid 5443] exit_group(0 [pid 5446] <... prctl resumed>) = 0 [pid 5444] symlink("/dev/binderfs", "./binderfs" [pid 5443] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5447 attached [pid 5446] setpgid(0, 0 [pid 5445] <... chdir resumed>) = 0 [pid 5444] <... symlink resumed>) = 0 [pid 5443] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5446] <... setpgid resumed>) = 0 [pid 5444] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5447 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] <... prctl resumed>) = 0 [pid 5444] <... madvise resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5447] chdir("./57" [pid 5446] <... openat resumed>) = 3 [pid 5445] setpgid(0, 0 [pid 5444] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5447] <... chdir resumed>) = 0 [pid 5446] write(3, "1000", 4 [pid 5445] <... setpgid resumed>) = 0 [pid 5444] <... openat resumed>) = 3 [pid 5080] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5446] <... write resumed>) = 4 [pid 5444] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5447] <... prctl resumed>) = 0 [pid 5446] close(3 [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5444] <... write resumed>) = 1 [pid 5080] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] fstat(3, [pid 5447] setpgid(0, 0 [pid 5446] <... close resumed>) = 0 [pid 5444] write(3, "\x32\x00", 2 [pid 5447] <... setpgid resumed>) = 0 [pid 5446] symlink("/dev/binderfs", "./binderfs" [pid 5445] <... openat resumed>) = 3 [pid 5444] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5446] <... symlink resumed>) = 0 [pid 5445] write(3, "1000", 4 [pid 5444] exit_group(0 [pid 5080] fstat(3, [pid 5077] getdents64(3, [pid 5447] <... openat resumed>) = 3 [pid 5446] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5445] <... write resumed>) = 4 [pid 5444] <... exit_group resumed>) = ? [pid 5447] write(3, "1000", 4 [pid 5446] <... madvise resumed>) = 0 [pid 5445] close(3 [pid 5444] +++ exited with 0 +++ [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5447] <... write resumed>) = 4 [pid 5446] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5445] <... close resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] getdents64(3, [pid 5077] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5447] close(3 [pid 5446] <... openat resumed>) = 3 [pid 5445] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5447] <... close resumed>) = 0 [pid 5446] write(3, "1", 1 [pid 5447] symlink("/dev/binderfs", "./binderfs" [pid 5446] <... write resumed>) = 1 [pid 5447] <... symlink resumed>) = 0 [pid 5446] write(3, "\x32\x00", 2 [pid 5445] <... symlink resumed>) = 0 [pid 5080] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./59/binderfs", [pid 5447] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5446] <... write resumed>) = 2 [pid 5445] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5447] <... madvise resumed>) = 0 [pid 5446] exit_group(0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5447] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5446] <... exit_group resumed>) = ? [pid 5445] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./62/binderfs", [pid 5077] unlink("./59/binderfs" [pid 5447] <... openat resumed>) = 3 [pid 5446] +++ exited with 0 +++ [pid 5445] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5447] write(3, "1", 1) = 1 [pid 5077] <... unlink resumed>) = 0 [pid 5447] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5080] unlink("./62/binderfs" [pid 5447] <... write resumed>) = 2 [pid 5445] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] getdents64(3, [pid 5447] exit_group(0 [pid 5445] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5447] <... exit_group resumed>) = ? [pid 5445] <... write resumed>) = 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5447] +++ exited with 0 +++ [pid 5445] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5445] <... write resumed>) = 2 [pid 5081] unlink("./63/binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5445] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5080] close(3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5445] <... exit_group resumed>) = ? [pid 5081] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] rmdir("./59" [pid 5075] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] close(3 [pid 5080] rmdir("./62" [pid 5079] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./63" [pid 5077] <... rmdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] mkdir("./64", 0777 [pid 5080] mkdir("./63", 0777 [pid 5079] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./60", 0777 [pid 5075] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5448 attached [pid 5080] <... mkdir resumed>) = 0 [pid 5079] fstat(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5448] chdir("./64" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5448 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] fstat(3, [pid 5448] <... chdir resumed>) = 0 [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5450 attached [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5449 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5448] <... prctl resumed>) = 0 [pid 5079] lstat("./60/binderfs", [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5450 [pid 5075] getdents64(3, [pid 5448] setpgid(0, 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5448] <... setpgid resumed>) = 0 [pid 5079] unlink("./60/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5449 attached [pid 5450] chdir("./60" [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... unlink resumed>) = 0 [pid 5076] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] <... chdir resumed>) = 0 [pid 5449] chdir("./63" [pid 5448] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] <... chdir resumed>) = 0 [pid 5448] write(3, "1000", 4 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./57/binderfs", [pid 5450] <... prctl resumed>) = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] <... write resumed>) = 4 [pid 5079] close(3 [pid 5076] <... openat resumed>) = 3 [pid 5450] setpgid(0, 0 [pid 5449] <... prctl resumed>) = 0 [pid 5448] close(3 [pid 5079] <... close resumed>) = 0 [pid 5076] fstat(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5450] <... setpgid resumed>) = 0 [pid 5449] setpgid(0, 0 [pid 5448] <... close resumed>) = 0 [pid 5079] rmdir("./60" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./57/binderfs" [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] <... setpgid resumed>) = 0 [pid 5448] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5450] <... openat resumed>) = 3 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] mkdir("./61", 0777 [pid 5075] <... unlink resumed>) = 0 [pid 5450] write(3, "1000", 4 [pid 5449] <... openat resumed>) = 3 [pid 5448] <... symlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5450] <... write resumed>) = 4 [pid 5449] write(3, "1000", 4 [pid 5448] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5450] close(3 [pid 5449] <... write resumed>) = 4 [pid 5448] <... madvise resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./60/binderfs", [pid 5450] <... close resumed>) = 0 [pid 5449] close(3 [pid 5448] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5450] symlink("/dev/binderfs", "./binderfs" [pid 5449] <... close resumed>) = 0 [pid 5448] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5451 [pid 5076] unlink("./60/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5450] <... symlink resumed>) = 0 [pid 5449] symlink("/dev/binderfs", "./binderfs" [pid 5448] write(3, "1", 1./strace-static-x86_64: Process 5451 attached [pid 5449] <... symlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5448] <... write resumed>) = 1 [pid 5075] rmdir("./57" [pid 5450] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5451] chdir("./61" [pid 5449] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5449] <... madvise resumed>) = 0 [pid 5448] write(3, "\x32\x00", 2 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./58", 0777 [pid 5449] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] close(3 [pid 5075] <... mkdir resumed>) = 0 [pid 5449] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5449] write(3, "1", 1 [pid 5076] rmdir("./60") = 0 [pid 5076] mkdir("./61", 0777 [pid 5451] <... chdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5451] <... prctl resumed>) = 0 [pid 5451] setpgid(0, 0) = 0 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5450] <... madvise resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5452 [pid 5451] <... openat resumed>) = 3 [pid 5450] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5453 [pid 5451] write(3, "1000", 4 [pid 5450] <... openat resumed>) = 3 [pid 5451] <... write resumed>) = 4 [pid 5450] write(3, "1", 1./strace-static-x86_64: Process 5453 attached ./strace-static-x86_64: Process 5452 attached [pid 5451] close(3 [pid 5453] chdir("./61" [pid 5452] chdir("./58" [pid 5451] <... close resumed>) = 0 [pid 5453] <... chdir resumed>) = 0 [pid 5452] <... chdir resumed>) = 0 [pid 5451] symlink("/dev/binderfs", "./binderfs" [pid 5450] <... write resumed>) = 1 [pid 5449] <... write resumed>) = 1 [pid 5448] <... write resumed>) = 2 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5451] <... symlink resumed>) = 0 [pid 5450] write(3, "\x32\x00", 2 [pid 5449] write(3, "\x32\x00", 2 [pid 5452] <... prctl resumed>) = 0 [pid 5451] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5452] setpgid(0, 0 [pid 5451] <... madvise resumed>) = 0 [pid 5452] <... setpgid resumed>) = 0 [pid 5451] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5453] <... prctl resumed>) = 0 [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] <... openat resumed>) = 3 [pid 5453] setpgid(0, 0 [pid 5452] <... openat resumed>) = 3 [pid 5451] write(3, "1", 1 [pid 5453] <... setpgid resumed>) = 0 [pid 5452] write(3, "1000", 4) = 4 [pid 5452] close(3 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] <... close resumed>) = 0 [pid 5452] symlink("/dev/binderfs", "./binderfs" [pid 5453] <... openat resumed>) = 3 [pid 5452] <... symlink resumed>) = 0 [pid 5452] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5453] write(3, "1000", 4 [pid 5452] <... madvise resumed>) = 0 [pid 5452] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5453] <... write resumed>) = 4 [pid 5452] <... openat resumed>) = 3 [pid 5448] exit_group(0 [pid 5453] close(3 [pid 5452] write(3, "1", 1 [pid 5448] <... exit_group resumed>) = ? [pid 5453] <... close resumed>) = 0 [pid 5453] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5453] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5450] <... write resumed>) = 2 [pid 5449] <... write resumed>) = 2 [pid 5448] +++ exited with 0 +++ [pid 5453] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5452] <... write resumed>) = 1 [pid 5451] <... write resumed>) = 1 [pid 5449] exit_group(0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5448, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5452] write(3, "\x32\x00", 2 [pid 5451] write(3, "\x32\x00", 2 [pid 5450] exit_group(0 [pid 5449] <... exit_group resumed>) = ? [pid 5453] <... openat resumed>) = 3 [pid 5453] write(3, "1", 1 [pid 5451] <... write resumed>) = 2 [pid 5450] <... exit_group resumed>) = ? [pid 5449] +++ exited with 0 +++ [pid 5453] <... write resumed>) = 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5453] write(3, "\x32\x00", 2 [pid 5451] exit_group(0) = ? [pid 5081] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... openat resumed>) = 3 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5452] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5079] <... restart_syscall resumed>) = 0 [pid 5080] fstat(3, [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] lstat("./64/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5452] exit_group(0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] lstat("./63/binderfs", [pid 5079] fstat(3, [pid 5452] <... exit_group resumed>) = ? [pid 5081] unlink("./64/binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] unlink("./63/binderfs" [pid 5081] getdents64(3, [pid 5079] getdents64(3, [pid 5452] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5452, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5450] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./64" [pid 5080] close(3 [pid 5079] lstat("./61/binderfs", [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5450, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5453] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] mkdir("./65", 0777 [pid 5453] exit_group(0 [pid 5080] rmdir("./63" [pid 5079] unlink("./61/binderfs" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... exit_group resumed>) = ? [pid 5081] <... mkdir resumed>) = 0 [pid 5453] +++ exited with 0 +++ [pid 5077] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] fstat(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./64", 0777 [pid 5079] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] lstat("./60/binderfs", [pid 5076] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] close(3 [pid 5077] unlink("./60/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] fstat(3, [pid 5075] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./61" [pid 5077] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] lstat("./58/binderfs", [pid 5077] rmdir("./60" [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5455 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5454 [pid 5079] mkdir("./62", 0777 [pid 5077] mkdir("./61", 0777 [pid 5076] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./58/binderfs" [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5076] lstat("./61/binderfs", [pid 5075] <... unlink resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5456 ./strace-static-x86_64: Process 5455 attached [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5455] chdir("./65" [pid 5076] unlink("./61/binderfs" [pid 5455] <... chdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5076] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./58" [pid 5455] setpgid(0, 0 [pid 5076] close(3 [pid 5455] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5456 attached [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5457 attached ./strace-static-x86_64: Process 5454 attached [pid 5456] chdir("./61" [pid 5455] <... openat resumed>) = 3 [pid 5076] rmdir("./61" [pid 5075] mkdir("./59", 0777 [pid 5456] <... chdir resumed>) = 0 [pid 5455] write(3, "1000", 4 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5457 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5455] <... write resumed>) = 4 [pid 5456] <... prctl resumed>) = 0 [pid 5455] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5456] setpgid(0, 0 [pid 5455] <... close resumed>) = 0 [pid 5456] <... setpgid resumed>) = 0 [pid 5455] symlink("/dev/binderfs", "./binderfs" [pid 5076] mkdir("./62", 0777 [pid 5075] <... mkdir resumed>) = 0 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5454] chdir("./64" [pid 5455] <... symlink resumed>) = 0 [pid 5456] <... openat resumed>) = 3 [pid 5454] <... chdir resumed>) = 0 [pid 5455] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] write(3, "1000", 4 [pid 5454] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5455] <... madvise resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] <... write resumed>) = 4 [pid 5455] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5456] close(3 [pid 5455] <... openat resumed>) = 3 [pid 5456] <... close resumed>) = 0 [pid 5455] write(3, "1", 1 [pid 5456] symlink("/dev/binderfs", "./binderfs" [pid 5454] <... prctl resumed>) = 0 [pid 5455] <... write resumed>) = 1 [pid 5457] chdir("./62" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5458 [pid 5456] <... symlink resumed>) = 0 [pid 5454] setpgid(0, 0 [pid 5455] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5458 attached [pid 5457] <... chdir resumed>) = 0 [pid 5456] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5454] <... setpgid resumed>) = 0 [pid 5455] <... write resumed>) = 2 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5459 ./strace-static-x86_64: Process 5459 attached [pid 5458] chdir("./59" [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5456] <... madvise resumed>) = 0 [pid 5455] exit_group(0 [pid 5459] chdir("./62" [pid 5458] <... chdir resumed>) = 0 [pid 5457] <... prctl resumed>) = 0 [pid 5456] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5455] <... exit_group resumed>) = ? [pid 5459] <... chdir resumed>) = 0 [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5457] setpgid(0, 0 [pid 5456] <... openat resumed>) = 3 [pid 5454] <... openat resumed>) = 3 [pid 5455] +++ exited with 0 +++ [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5458] <... prctl resumed>) = 0 [pid 5457] <... setpgid resumed>) = 0 [pid 5456] write(3, "1", 1 [pid 5454] write(3, "1000", 4 [pid 5459] <... prctl resumed>) = 0 [pid 5458] setpgid(0, 0 [pid 5456] <... write resumed>) = 1 [pid 5459] setpgid(0, 0 [pid 5458] <... setpgid resumed>) = 0 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] write(3, "\x32\x00", 2 [pid 5454] <... write resumed>) = 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5459] <... setpgid resumed>) = 0 [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5457] <... openat resumed>) = 3 [pid 5456] <... write resumed>) = 2 [pid 5454] close(3 [pid 5081] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] <... openat resumed>) = 3 [pid 5457] write(3, "1000", 4 [pid 5456] exit_group(0 [pid 5454] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] <... openat resumed>) = 3 [pid 5458] write(3, "1000", 4 [pid 5457] <... write resumed>) = 4 [pid 5456] <... exit_group resumed>) = ? [pid 5454] symlink("/dev/binderfs", "./binderfs" [pid 5081] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5459] write(3, "1000", 4 [pid 5458] <... write resumed>) = 4 [pid 5457] close(3 [pid 5456] +++ exited with 0 +++ [pid 5459] <... write resumed>) = 4 [pid 5458] close(3 [pid 5457] <... close resumed>) = 0 [pid 5454] <... symlink resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5459] close(3 [pid 5458] <... close resumed>) = 0 [pid 5457] symlink("/dev/binderfs", "./binderfs" [pid 5454] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5459] <... close resumed>) = 0 [pid 5458] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... restart_syscall resumed>) = 0 [pid 5459] symlink("/dev/binderfs", "./binderfs" [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... symlink resumed>) = 0 [pid 5454] <... madvise resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5458] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5457] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5454] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5459] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5458] <... madvise resumed>) = 0 [pid 5457] <... madvise resumed>) = 0 [pid 5077] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] <... madvise resumed>) = 0 [pid 5458] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5457] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5454] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5458] <... openat resumed>) = 3 [pid 5457] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5459] <... openat resumed>) = 3 [pid 5458] write(3, "1", 1 [pid 5457] write(3, "1", 1 [pid 5454] write(3, "1", 1 [pid 5081] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5459] write(3, "1", 1 [pid 5458] <... write resumed>) = 1 [pid 5457] <... write resumed>) = 1 [pid 5454] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5459] <... write resumed>) = 1 [pid 5458] write(3, "\x32\x00", 2 [pid 5457] write(3, "\x32\x00", 2 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5459] write(3, "\x32\x00", 2 [pid 5458] <... write resumed>) = 2 [pid 5457] <... write resumed>) = 2 [pid 5454] write(3, "\x32\x00", 2 [pid 5081] lstat("./65/binderfs", [pid 5077] getdents64(3, [pid 5459] <... write resumed>) = 2 [pid 5458] exit_group(0 [pid 5457] exit_group(0 [pid 5454] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5459] exit_group(0 [pid 5458] <... exit_group resumed>) = ? [pid 5457] <... exit_group resumed>) = ? [pid 5454] exit_group(0 [pid 5081] unlink("./65/binderfs" [pid 5077] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] <... exit_group resumed>) = ? [pid 5458] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] +++ exited with 0 +++ [pid 5457] +++ exited with 0 +++ [pid 5454] <... exit_group resumed>) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5077] lstat("./61/binderfs", [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./61/binderfs") = 0 [pid 5077] getdents64(3, [pid 5454] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] rmdir("./61" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] close(3 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] mkdir("./62", 0777 [pid 5081] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./65" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... rmdir resumed>) = 0 [pid 5080] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5460 [pid 5076] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] mkdir("./66", 0777 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5460 attached [pid 5081] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5076] fstat(3, [pid 5075] getdents64(3, [pid 5460] chdir("./62") = 0 [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5461 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5460] <... prctl resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5460] setpgid(0, 0 [pid 5080] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./59/binderfs", ./strace-static-x86_64: Process 5461 attached [pid 5460] <... setpgid resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./64/binderfs", [pid 5079] lstat("./62/binderfs", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5461] chdir("./66" [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./59/binderfs" [pid 5461] <... chdir resumed>) = 0 [pid 5460] <... openat resumed>) = 3 [pid 5080] unlink("./64/binderfs" [pid 5079] unlink("./62/binderfs" [pid 5076] lstat("./62/binderfs", [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5460] write(3, "1000", 4 [pid 5075] <... unlink resumed>) = 0 [pid 5461] <... prctl resumed>) = 0 [pid 5460] <... write resumed>) = 4 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5461] setpgid(0, 0 [pid 5460] close(3 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5461] <... setpgid resumed>) = 0 [pid 5460] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] unlink("./62/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5460] symlink("/dev/binderfs", "./binderfs" [pid 5080] close(3 [pid 5079] close(3 [pid 5461] <... openat resumed>) = 3 [pid 5460] <... symlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5080] <... close resumed>) = 0 [pid 5461] write(3, "1000", 4 [pid 5460] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... close resumed>) = 0 [pid 5080] rmdir("./64" [pid 5076] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5461] <... write resumed>) = 4 [pid 5460] <... madvise resumed>) = 0 [pid 5079] rmdir("./62" [pid 5461] close(3 [pid 5460] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5461] <... close resumed>) = 0 [pid 5460] <... openat resumed>) = 3 [pid 5461] symlink("/dev/binderfs", "./binderfs" [pid 5460] write(3, "1", 1 [pid 5461] <... symlink resumed>) = 0 [pid 5460] <... write resumed>) = 1 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./59" [pid 5461] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5460] write(3, "\x32\x00", 2 [pid 5080] mkdir("./65", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] close(3 [pid 5461] <... madvise resumed>) = 0 [pid 5460] <... write resumed>) = 2 [pid 5075] <... rmdir resumed>) = 0 [pid 5461] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5460] exit_group(0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] mkdir("./63", 0777 [pid 5076] <... close resumed>) = 0 [pid 5075] mkdir("./60", 0777 [pid 5461] <... openat resumed>) = 3 [pid 5460] <... exit_group resumed>) = ? [pid 5461] write(3, "1", 1 [pid 5460] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5076] rmdir("./62" [pid 5075] <... mkdir resumed>) = 0 [pid 5461] <... write resumed>) = 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5461] write(3, "\x32\x00", 2) = 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... rmdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5461] exit_group(0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5462 [pid 5077] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5461] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./63", 0777 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5461, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5463 [pid 5077] <... openat resumed>) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5464 [pid 5077] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./62/binderfs") = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3./strace-static-x86_64: Process 5464 attached ) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5465 [pid 5464] chdir("./60" [pid 5077] rmdir("./62"./strace-static-x86_64: Process 5463 attached ./strace-static-x86_64: Process 5462 attached [pid 5464] <... chdir resumed>) = 0 [pid 5081] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] chdir("./63" [pid 5462] chdir("./65" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] mkdir("./63", 0777./strace-static-x86_64: Process 5465 attached [pid 5464] <... prctl resumed>) = 0 [pid 5463] <... chdir resumed>) = 0 [pid 5462] <... chdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... mkdir resumed>) = 0 [pid 5465] chdir("./63" [pid 5464] setpgid(0, 0 [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5466 attached [pid 5465] <... chdir resumed>) = 0 [pid 5464] <... setpgid resumed>) = 0 [pid 5463] <... prctl resumed>) = 0 [pid 5462] <... prctl resumed>) = 0 [pid 5081] fstat(3, [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] setpgid(0, 0 [pid 5462] setpgid(0, 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5466 [pid 5465] <... prctl resumed>) = 0 [pid 5464] <... openat resumed>) = 3 [pid 5463] <... setpgid resumed>) = 0 [pid 5462] <... setpgid resumed>) = 0 [pid 5081] getdents64(3, [pid 5465] setpgid(0, 0 [pid 5464] write(3, "1000", 4 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5465] <... setpgid resumed>) = 0 [pid 5464] <... write resumed>) = 4 [pid 5463] <... openat resumed>) = 3 [pid 5462] <... openat resumed>) = 3 [pid 5081] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5464] close(3 [pid 5463] write(3, "1000", 4 [pid 5462] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5465] <... openat resumed>) = 3 [pid 5464] <... close resumed>) = 0 [pid 5463] <... write resumed>) = 4 [pid 5462] <... write resumed>) = 4 [pid 5081] lstat("./66/binderfs", [pid 5465] write(3, "1000", 4 [pid 5464] symlink("/dev/binderfs", "./binderfs" [pid 5463] close(3 [pid 5462] close(3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5466] chdir("./63" [pid 5465] <... write resumed>) = 4 [pid 5464] <... symlink resumed>) = 0 [pid 5463] <... close resumed>) = 0 [pid 5462] <... close resumed>) = 0 [pid 5081] unlink("./66/binderfs" [pid 5466] <... chdir resumed>) = 0 [pid 5465] close(3 [pid 5464] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5463] symlink("/dev/binderfs", "./binderfs" [pid 5462] symlink("/dev/binderfs", "./binderfs" [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... close resumed>) = 0 [pid 5464] <... madvise resumed>) = 0 [pid 5463] <... symlink resumed>) = 0 [pid 5462] <... symlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5465] symlink("/dev/binderfs", "./binderfs" [pid 5464] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5463] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5462] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5466] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5466] setpgid(0, 0 [pid 5465] <... symlink resumed>) = 0 [pid 5464] <... openat resumed>) = 3 [pid 5463] <... madvise resumed>) = 0 [pid 5462] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5466] <... setpgid resumed>) = 0 [pid 5465] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5464] write(3, "1", 1 [pid 5463] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5462] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] close(3 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... madvise resumed>) = 0 [pid 5464] <... write resumed>) = 1 [pid 5463] <... openat resumed>) = 3 [pid 5462] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5466] <... openat resumed>) = 3 [pid 5465] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5464] write(3, "\x32\x00", 2 [pid 5463] write(3, "1", 1 [pid 5462] write(3, "1", 1 [pid 5081] rmdir("./66" [pid 5466] write(3, "1000", 4 [pid 5465] <... openat resumed>) = 3 [pid 5464] <... write resumed>) = 2 [pid 5463] <... write resumed>) = 1 [pid 5462] <... write resumed>) = 1 [pid 5465] write(3, "1", 1 [pid 5464] exit_group(0 [pid 5462] write(3, "\x32\x00", 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5463] write(3, "\x32\x00", 2 [pid 5466] <... write resumed>) = 4 [pid 5465] <... write resumed>) = 1 [pid 5464] <... exit_group resumed>) = ? [pid 5462] <... write resumed>) = 2 [pid 5463] <... write resumed>) = 2 [pid 5081] mkdir("./67", 0777 [pid 5466] close(3 [pid 5465] write(3, "\x32\x00", 2 [pid 5464] +++ exited with 0 +++ [pid 5463] exit_group(0 [pid 5462] exit_group(0 [pid 5466] <... close resumed>) = 0 [pid 5465] <... write resumed>) = 2 [pid 5463] <... exit_group resumed>) = ? [pid 5462] <... exit_group resumed>) = ? [pid 5081] <... mkdir resumed>) = 0 [pid 5466] symlink("/dev/binderfs", "./binderfs" [pid 5465] exit_group(0 [pid 5463] +++ exited with 0 +++ [pid 5462] +++ exited with 0 +++ [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5465] <... exit_group resumed>) = ? [pid 5466] <... symlink resumed>) = 0 [pid 5465] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5467 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5467 attached [pid 5466] <... madvise resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5466] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5466] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5076] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5079] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5466] <... write resumed>) = 1 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] chdir("./67" [pid 5466] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5075] lstat("./60/binderfs", [pid 5467] <... chdir resumed>) = 0 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5467] setpgid(0, 0) = 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5466] <... write resumed>) = 2 [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5467] <... openat resumed>) = 3 [pid 5466] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] unlink("./60/binderfs" [pid 5467] write(3, "1000", 4 [pid 5466] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5467] <... write resumed>) = 4 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... unlink resumed>) = 0 [pid 5467] close(3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5467] <... close resumed>) = 0 [pid 5080] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] symlink("/dev/binderfs", "./binderfs" [pid 5466] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./63/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5467] <... symlink resumed>) = 0 [pid 5080] lstat("./65/binderfs", [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./63/binderfs", [pid 5075] close(3 [pid 5467] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./63/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5467] <... madvise resumed>) = 0 [pid 5080] unlink("./65/binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5077] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./63/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5467] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5080] getdents64(3, [pid 5077] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5075] rmdir("./60" [pid 5467] write(3, "1", 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5467] <... write resumed>) = 1 [pid 5077] fstat(3, [pid 5467] write(3, "\x32\x00", 2 [pid 5080] close(3 [pid 5079] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5467] <... write resumed>) = 2 [pid 5080] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./61", 0777 [pid 5467] exit_group(0 [pid 5080] rmdir("./65" [pid 5079] rmdir("./63" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] close(3 [pid 5467] <... exit_group resumed>) = ? [pid 5077] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] mkdir("./66", 0777 [pid 5079] mkdir("./64", 0777 [pid 5077] lstat("./63/binderfs", [pid 5076] rmdir("./63" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./63/binderfs" [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 ./strace-static-x86_64: Process 5468 attached [pid 5081] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5077] rmdir("./63" [pid 5076] mkdir("./64", 0777./strace-static-x86_64: Process 5469 attached [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5468 [pid 5081] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5469 [pid 5077] mkdir("./64", 0777) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5471 attached [pid 5469] chdir("./66" [pid 5468] chdir("./61" [pid 5081] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5471 [pid 5468] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5470 ./strace-static-x86_64: Process 5470 attached [pid 5470] chdir("./64" [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5470] <... chdir resumed>) = 0 [pid 5469] <... chdir resumed>) = 0 [pid 5468] <... prctl resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5472 [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(3, [pid 5470] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5472 attached [pid 5470] setpgid(0, 0 [pid 5468] setpgid(0, 0 [pid 5472] chdir("./64" [pid 5470] <... setpgid resumed>) = 0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] <... setpgid resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5472] <... chdir resumed>) = 0 [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] <... prctl resumed>) = 0 [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5470] <... openat resumed>) = 3 [pid 5469] setpgid(0, 0 [pid 5471] chdir("./64" [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] <... prctl resumed>) = 0 [pid 5470] write(3, "1000", 4 [pid 5468] <... openat resumed>) = 3 [pid 5472] setpgid(0, 0 [pid 5470] <... write resumed>) = 4 [pid 5469] <... setpgid resumed>) = 0 [pid 5468] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] <... setpgid resumed>) = 0 [pid 5470] close(3 [pid 5468] <... write resumed>) = 4 [pid 5081] lstat("./67/binderfs", [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] <... close resumed>) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5468] close(3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5472] <... openat resumed>) = 3 [pid 5471] <... chdir resumed>) = 0 [pid 5470] symlink("/dev/binderfs", "./binderfs" [pid 5469] <... openat resumed>) = 3 [pid 5468] <... close resumed>) = 0 [pid 5081] unlink("./67/binderfs" [pid 5472] write(3, "1000", 4 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5470] <... symlink resumed>) = 0 [pid 5469] write(3, "1000", 4 [pid 5468] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5472] <... write resumed>) = 4 [pid 5471] <... prctl resumed>) = 0 [pid 5470] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5469] <... write resumed>) = 4 [pid 5468] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5472] close(3 [pid 5471] setpgid(0, 0 [pid 5470] <... madvise resumed>) = 0 [pid 5469] close(3 [pid 5468] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5472] <... close resumed>) = 0 [pid 5471] <... setpgid resumed>) = 0 [pid 5470] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5469] <... close resumed>) = 0 [pid 5468] <... madvise resumed>) = 0 [pid 5081] close(3 [pid 5472] symlink("/dev/binderfs", "./binderfs" [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] <... openat resumed>) = 3 [pid 5469] symlink("/dev/binderfs", "./binderfs" [pid 5468] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... close resumed>) = 0 [pid 5472] <... symlink resumed>) = 0 [pid 5471] <... openat resumed>) = 3 [pid 5470] write(3, "1", 1 [pid 5468] <... openat resumed>) = 3 [pid 5081] rmdir("./67" [pid 5472] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5471] write(3, "1000", 4 [pid 5470] <... write resumed>) = 1 [pid 5469] <... symlink resumed>) = 0 [pid 5468] write(3, "1", 1 [pid 5472] <... madvise resumed>) = 0 [pid 5471] <... write resumed>) = 4 [pid 5470] write(3, "\x32\x00", 2 [pid 5469] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5468] <... write resumed>) = 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5472] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5471] close(3 [pid 5470] <... write resumed>) = 2 [pid 5469] <... madvise resumed>) = 0 [pid 5468] write(3, "\x32\x00", 2 [pid 5472] <... openat resumed>) = 3 [pid 5471] <... close resumed>) = 0 [pid 5470] exit_group(0 [pid 5081] mkdir("./68", 0777 [pid 5472] write(3, "1", 1 [pid 5471] symlink("/dev/binderfs", "./binderfs" [pid 5470] <... exit_group resumed>) = ? [pid 5469] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5468] <... write resumed>) = 2 [pid 5472] <... write resumed>) = 1 [pid 5471] <... symlink resumed>) = 0 [pid 5470] +++ exited with 0 +++ [pid 5469] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5472] write(3, "\x32\x00", 2 [pid 5471] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5469] write(3, "1", 1 [pid 5468] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5472] <... write resumed>) = 2 [pid 5471] <... madvise resumed>) = 0 [pid 5469] <... write resumed>) = 1 [pid 5468] <... exit_group resumed>) = ? [pid 5472] exit_group(0 [pid 5471] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5472] <... exit_group resumed>) = ? [pid 5471] <... openat resumed>) = 3 [pid 5472] +++ exited with 0 +++ [pid 5471] write(3, "1", 1 [pid 5469] write(3, "\x32\x00", 2 [pid 5468] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5473 [pid 5471] <... write resumed>) = 1 ./strace-static-x86_64: Process 5473 attached [pid 5471] write(3, "\x32\x00", 2 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5473] chdir("./68" [pid 5471] <... write resumed>) = 2 [pid 5469] <... write resumed>) = 2 [pid 5079] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5473] <... chdir resumed>) = 0 [pid 5471] exit_group(0 [pid 5469] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... restart_syscall resumed>) = 0 [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5471] <... exit_group resumed>) = ? [pid 5469] <... exit_group resumed>) = ? [pid 5079] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5473] <... prctl resumed>) = 0 [pid 5471] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 3 [pid 5473] setpgid(0, 0 [pid 5079] fstat(3, [pid 5075] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... setpgid resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] +++ exited with 0 +++ [pid 5079] getdents64(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5473] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5473] write(3, "1000", 4 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(3, [pid 5473] <... write resumed>) = 4 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5473] close(3 [pid 5079] lstat("./64/binderfs", [pid 5077] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5473] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5473] symlink("/dev/binderfs", "./binderfs" [pid 5080] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] unlink("./64/binderfs" [pid 5077] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5473] <... symlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5077] fstat(3, [pid 5076] getdents64(3, [pid 5075] lstat("./61/binderfs", [pid 5473] <... madvise resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5473] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] fstat(3, [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5076] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./61/binderfs" [pid 5473] <... openat resumed>) = 3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... unlink resumed>) = 0 [pid 5473] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5079] rmdir("./64" [pid 5077] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./64/binderfs", [pid 5075] getdents64(3, [pid 5473] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5473] write(3, "\x32\x00", 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] lstat("./64/binderfs", [pid 5075] close(3 [pid 5473] <... write resumed>) = 2 [pid 5080] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] mkdir("./65", 0777 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5473] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./64/binderfs" [pid 5075] rmdir("./61" [pid 5473] <... exit_group resumed>) = ? [pid 5080] lstat("./66/binderfs", [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] unlink("./64/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5473] +++ exited with 0 +++ [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5075] mkdir("./62", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] unlink("./66/binderfs" [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5474 [pid 5077] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] rmdir("./64" [pid 5076] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5475 ./strace-static-x86_64: Process 5475 attached [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5077] mkdir("./65", 0777 [pid 5080] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] rmdir("./64"./strace-static-x86_64: Process 5474 attached [pid 5081] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5476 attached [pid 5475] chdir("./62" [pid 5474] chdir("./65" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./66" [pid 5076] <... rmdir resumed>) = 0 [pid 5474] <... chdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5476 [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... rmdir resumed>) = 0 [pid 5076] mkdir("./65", 0777 [pid 5474] <... prctl resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] mkdir("./67", 0777 [pid 5474] setpgid(0, 0) = 0 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] fstat(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5474] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5474] write(3, "1000", 4 [pid 5081] getdents64(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5474] <... write resumed>) = 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5474] close(3) = 0 [pid 5474] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5474] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5477 [pid 5474] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./68/binderfs", [pid 5475] <... chdir resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5478 ./strace-static-x86_64: Process 5477 attached [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5478 attached [pid 5477] chdir("./67" [pid 5475] <... prctl resumed>) = 0 [pid 5474] write(3, "1", 1 [pid 5081] unlink("./68/binderfs" [pid 5478] chdir("./65" [pid 5477] <... chdir resumed>) = 0 [pid 5476] chdir("./65" [pid 5475] setpgid(0, 0 [pid 5474] <... write resumed>) = 1 [pid 5478] <... chdir resumed>) = 0 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... setpgid resumed>) = 0 [pid 5474] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5477] <... prctl resumed>) = 0 [pid 5476] <... chdir resumed>) = 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5474] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5478] <... prctl resumed>) = 0 [pid 5477] setpgid(0, 0 [pid 5474] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5478] setpgid(0, 0 [pid 5477] <... setpgid resumed>) = 0 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... openat resumed>) = 3 [pid 5474] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5478] <... setpgid resumed>) = 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5476] <... prctl resumed>) = 0 [pid 5475] write(3, "1000", 4 [pid 5474] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5477] <... openat resumed>) = 3 [pid 5476] setpgid(0, 0 [pid 5475] <... write resumed>) = 4 [pid 5081] rmdir("./68" [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5478] <... openat resumed>) = 3 [pid 5477] write(3, "1000", 4 [pid 5476] <... setpgid resumed>) = 0 [pid 5475] close(3 [pid 5478] write(3, "1000", 4 [pid 5477] <... write resumed>) = 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5478] <... write resumed>) = 4 [pid 5477] close(3 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] <... close resumed>) = 0 [pid 5478] close(3 [pid 5477] <... close resumed>) = 0 [pid 5081] mkdir("./69", 0777 [pid 5476] <... openat resumed>) = 3 [pid 5475] symlink("/dev/binderfs", "./binderfs" [pid 5478] <... close resumed>) = 0 [pid 5477] symlink("/dev/binderfs", "./binderfs" [pid 5079] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] symlink("/dev/binderfs", "./binderfs" [pid 5477] <... symlink resumed>) = 0 [pid 5475] <... symlink resumed>) = 0 [pid 5476] write(3, "1000", 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] <... symlink resumed>) = 0 [pid 5477] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5476] <... write resumed>) = 4 [pid 5475] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5478] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5477] <... madvise resumed>) = 0 [pid 5476] close(3 [pid 5475] <... madvise resumed>) = 0 [pid 5478] <... madvise resumed>) = 0 [pid 5477] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5478] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5477] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5478] <... openat resumed>) = 3 [pid 5477] write(3, "1", 1 [pid 5476] <... close resumed>) = 0 [pid 5475] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5479 [pid 5079] fstat(3, [pid 5478] write(3, "1", 1 [pid 5477] <... write resumed>) = 1 [pid 5476] symlink("/dev/binderfs", "./binderfs" [pid 5475] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5479 attached [pid 5478] <... write resumed>) = 1 [pid 5477] write(3, "\x32\x00", 2 [pid 5479] chdir("./69" [pid 5478] write(3, "\x32\x00", 2 [pid 5477] <... write resumed>) = 2 [pid 5476] <... symlink resumed>) = 0 [pid 5475] write(3, "1", 1 [pid 5079] getdents64(3, [pid 5479] <... chdir resumed>) = 0 [pid 5478] <... write resumed>) = 2 [pid 5477] exit_group(0 [pid 5476] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5475] <... write resumed>) = 1 [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5478] exit_group(0 [pid 5477] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5476] <... madvise resumed>) = 0 [pid 5475] write(3, "\x32\x00", 2 [pid 5479] <... prctl resumed>) = 0 [pid 5478] <... exit_group resumed>) = ? [pid 5477] +++ exited with 0 +++ [pid 5476] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] setpgid(0, 0 [pid 5478] +++ exited with 0 +++ [pid 5476] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] <... setpgid resumed>) = 0 [pid 5476] write(3, "1", 1 [pid 5079] lstat("./65/binderfs", [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5479] <... openat resumed>) = 3 [pid 5079] unlink("./65/binderfs" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5479] write(3, "1000", 4) = 4 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5479] close(3 [pid 5476] <... write resumed>) = 1 [pid 5475] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5479] <... close resumed>) = 0 [pid 5476] write(3, "\x32\x00", 2 [pid 5080] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5479] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] close(3 [pid 5076] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5479] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] <... madvise resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] rmdir("./65" [pid 5076] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5479] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] fstat(3, [pid 5479] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5479] write(3, "1", 1 [pid 5076] <... openat resumed>) = 3 [pid 5479] <... write resumed>) = 1 [pid 5476] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] mkdir("./66", 0777 [pid 5076] fstat(3, [pid 5475] exit_group(0 [pid 5479] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5479] <... write resumed>) = 2 [pid 5476] exit_group(0 [pid 5475] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5479] exit_group(0 [pid 5080] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5479] <... exit_group resumed>) = ? [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5479] +++ exited with 0 +++ [pid 5080] lstat("./67/binderfs", [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5480 [pid 5076] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... exit_group resumed>) = ? [pid 5475] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] unlink("./67/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5480 attached [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... unlink resumed>) = 0 [pid 5076] lstat("./65/binderfs", [pid 5480] chdir("./66" [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] getdents64(3, [pid 5480] <... chdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] close(3 [pid 5076] unlink("./65/binderfs" [pid 5480] <... prctl resumed>) = 0 [pid 5081] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5480] setpgid(0, 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./67" [pid 5076] <... unlink resumed>) = 0 [pid 5480] <... setpgid resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5480] <... openat resumed>) = 3 [pid 5476] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5080] mkdir("./68", 0777 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5480] write(3, "1000", 4 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5480] <... write resumed>) = 4 [pid 5081] getdents64(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5476, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5076] close(3 [pid 5075] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5480] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5480] <... close resumed>) = 0 [pid 5081] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5480] symlink("/dev/binderfs", "./binderfs" [pid 5077] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5480] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] rmdir("./65" [pid 5075] getdents64(3, [pid 5480] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] lstat("./69/binderfs", [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5481 [pid 5077] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5480] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5480] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./69/binderfs" [pid 5077] getdents64(3, [pid 5076] mkdir("./66", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5480] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./62/binderfs", [pid 5480] write(3, "1", 1 [pid 5077] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5481 attached [pid 5480] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] unlink("./62/binderfs" [pid 5480] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./65/binderfs", [pid 5075] <... unlink resumed>) = 0 [pid 5481] chdir("./68" [pid 5480] <... write resumed>) = 2 [pid 5081] close(3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5481] <... chdir resumed>) = 0 [pid 5480] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5077] unlink("./65/binderfs" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5482 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5480] <... exit_group resumed>) = ? [pid 5081] rmdir("./69" [pid 5077] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5481] <... prctl resumed>) = 0 [pid 5480] +++ exited with 0 +++ [pid 5077] getdents64(3, [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5482 attached [pid 5481] setpgid(0, 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./62" [pid 5482] chdir("./66" [pid 5481] <... setpgid resumed>) = 0 [pid 5081] mkdir("./70", 0777 [pid 5077] close(3 [pid 5075] <... rmdir resumed>) = 0 [pid 5482] <... chdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] mkdir("./63", 0777 [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5077] rmdir("./65" [pid 5075] <... mkdir resumed>) = 0 [pid 5482] <... prctl resumed>) = 0 [pid 5481] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5482] setpgid(0, 0 [pid 5481] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] mkdir("./66", 0777 [pid 5482] <... setpgid resumed>) = 0 [pid 5481] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5484 [pid 5079] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5483 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5481] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5485 attached [pid 5482] <... openat resumed>) = 3 [pid 5481] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5482] write(3, "1000", 4 [pid 5481] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5485 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5484 attached [pid 5482] <... write resumed>) = 4 [pid 5484] chdir("./70" [pid 5482] close(3 [pid 5481] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5484] <... chdir resumed>) = 0 [pid 5482] <... close resumed>) = 0 [pid 5481] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5483 attached [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5482] symlink("/dev/binderfs", "./binderfs" [pid 5481] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5483] chdir("./63" [pid 5484] <... prctl resumed>) = 0 [pid 5482] <... symlink resumed>) = 0 [pid 5481] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... chdir resumed>) = 0 [pid 5484] setpgid(0, 0 [pid 5482] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5481] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5484] <... setpgid resumed>) = 0 [pid 5482] <... madvise resumed>) = 0 [pid 5481] write(3, "1", 1 [pid 5079] lstat("./66/binderfs", [pid 5485] chdir("./66" [pid 5483] <... prctl resumed>) = 0 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5482] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5481] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5483] setpgid(0, 0 [pid 5484] <... openat resumed>) = 3 [pid 5482] <... openat resumed>) = 3 [pid 5481] write(3, "\x32\x00", 2 [pid 5485] <... chdir resumed>) = 0 [pid 5079] unlink("./66/binderfs" [pid 5483] <... setpgid resumed>) = 0 [pid 5484] write(3, "1000", 4 [pid 5482] write(3, "1", 1 [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] <... write resumed>) = 4 [pid 5482] <... write resumed>) = 1 [pid 5481] <... write resumed>) = 2 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5483] <... openat resumed>) = 3 [pid 5484] close(3 [pid 5482] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5481] exit_group(0 [pid 5485] <... prctl resumed>) = 0 [pid 5483] write(3, "1000", 4 [pid 5484] <... close resumed>) = 0 [pid 5482] <... write resumed>) = 2 [pid 5481] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5485] setpgid(0, 0 [pid 5483] <... write resumed>) = 4 [pid 5484] symlink("/dev/binderfs", "./binderfs" [pid 5482] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5485] <... setpgid resumed>) = 0 [pid 5483] close(3 [pid 5484] <... symlink resumed>) = 0 [pid 5482] <... exit_group resumed>) = ? [pid 5079] close(3 [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5483] <... close resumed>) = 0 [pid 5484] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5482] +++ exited with 0 +++ [pid 5481] +++ exited with 0 +++ [pid 5079] <... close resumed>) = 0 [pid 5485] <... openat resumed>) = 3 [pid 5483] symlink("/dev/binderfs", "./binderfs" [pid 5484] <... madvise resumed>) = 0 [pid 5079] rmdir("./66" [pid 5485] write(3, "1000", 4 [pid 5483] <... symlink resumed>) = 0 [pid 5484] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5485] <... write resumed>) = 4 [pid 5483] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5484] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... rmdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5482, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5485] close(3 [pid 5483] <... madvise resumed>) = 0 [pid 5484] write(3, "1", 1 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] mkdir("./67", 0777 [pid 5076] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... close resumed>) = 0 [pid 5483] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5484] <... write resumed>) = 1 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5485] symlink("/dev/binderfs", "./binderfs" [pid 5483] <... openat resumed>) = 3 [pid 5484] write(3, "\x32\x00", 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5485] <... symlink resumed>) = 0 [pid 5483] write(3, "1", 1 [pid 5076] <... openat resumed>) = 3 [pid 5485] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5486 [pid 5076] fstat(3, [pid 5485] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5485] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] getdents64(3, [pid 5485] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5485] write(3, "1", 1 [pid 5080] fstat(3, [pid 5076] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5076] lstat("./66/binderfs", ./strace-static-x86_64: Process 5486 attached [pid 5485] <... write resumed>) = 1 [pid 5483] <... write resumed>) = 1 [pid 5484] <... write resumed>) = 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5486] chdir("./67" [pid 5485] write(3, "\x32\x00", 2 [pid 5483] write(3, "\x32\x00", 2 [pid 5484] exit_group(0 [pid 5080] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./66/binderfs" [pid 5486] <... chdir resumed>) = 0 [pid 5485] <... write resumed>) = 2 [pid 5483] <... write resumed>) = 2 [pid 5484] <... exit_group resumed>) = ? [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5485] exit_group(0 [pid 5483] exit_group(0 [pid 5484] +++ exited with 0 +++ [pid 5080] lstat("./68/binderfs", [pid 5076] getdents64(3, [pid 5486] <... prctl resumed>) = 0 [pid 5485] <... exit_group resumed>) = ? [pid 5483] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./68/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5486] setpgid(0, 0 [pid 5485] +++ exited with 0 +++ [pid 5483] +++ exited with 0 +++ [pid 5486] <... setpgid resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] close(3 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] getdents64(3, [pid 5486] <... openat resumed>) = 3 [pid 5081] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5483, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5486] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5077] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./66" [pid 5075] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5486] <... write resumed>) = 4 [pid 5081] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5486] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] rmdir("./68" [pid 5077] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5486] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5077] <... openat resumed>) = 3 [pid 5486] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... rmdir resumed>) = 0 [pid 5077] fstat(3, [pid 5075] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5486] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] mkdir("./69", 0777 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] mkdir("./67", 0777 [pid 5486] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5077] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5486] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5486] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5075] fstat(3, [pid 5486] <... openat resumed>) = 3 [pid 5081] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5486] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./66/binderfs", [pid 5486] <... write resumed>) = 1 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5486] write(3, "\x32\x00", 2 [pid 5077] unlink("./66/binderfs"./strace-static-x86_64: Process 5488 attached [pid 5486] <... write resumed>) = 2 [pid 5081] lstat("./70/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5486] exit_group(0 [pid 5077] getdents64(3, [pid 5486] <... exit_group resumed>) = ? [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5488 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5487 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5488] chdir("./69" [pid 5486] +++ exited with 0 +++ [pid 5081] unlink("./70/binderfs" [pid 5077] close(3 [pid 5075] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5487 attached [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5487] chdir("./67" [pid 5081] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5486, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] rmdir("./66" [pid 5488] <... chdir resumed>) = 0 [pid 5487] <... chdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] lstat("./63/binderfs", [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] close(3 [pid 5077] mkdir("./67", 0777 [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5487] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5488] <... prctl resumed>) = 0 [pid 5487] setpgid(0, 0 [pid 5081] rmdir("./70" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] unlink("./63/binderfs" [pid 5488] setpgid(0, 0 [pid 5487] <... setpgid resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5488] <... setpgid resumed>) = 0 [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] mkdir("./71", 0777 [pid 5079] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5489 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5489 attached [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5487] <... openat resumed>) = 3 [pid 5488] <... openat resumed>) = 3 [pid 5487] write(3, "1000", 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5488] write(3, "1000", 4 [pid 5487] <... write resumed>) = 4 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5488] <... write resumed>) = 4 [pid 5487] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5488] close(3 [pid 5487] <... close resumed>) = 0 [pid 5488] <... close resumed>) = 0 [pid 5487] symlink("/dev/binderfs", "./binderfs" [pid 5488] symlink("/dev/binderfs", "./binderfs" [pid 5487] <... symlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5488] <... symlink resumed>) = 0 [pid 5487] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5490 [pid 5079] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5488] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5487] <... madvise resumed>) = 0 [pid 5488] <... madvise resumed>) = 0 [pid 5487] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./63"./strace-static-x86_64: Process 5490 attached [pid 5489] chdir("./67" [pid 5488] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5487] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5490] chdir("./71" [pid 5489] <... chdir resumed>) = 0 [pid 5488] <... openat resumed>) = 3 [pid 5487] write(3, "1", 1 [pid 5075] <... rmdir resumed>) = 0 [pid 5490] <... chdir resumed>) = 0 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5488] write(3, "1", 1 [pid 5487] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5489] <... prctl resumed>) = 0 [pid 5488] <... write resumed>) = 1 [pid 5487] write(3, "\x32\x00", 2 [pid 5079] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./64", 0777 [pid 5490] <... prctl resumed>) = 0 [pid 5489] setpgid(0, 0 [pid 5488] write(3, "\x32\x00", 2 [pid 5487] <... write resumed>) = 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] setpgid(0, 0 [pid 5489] <... setpgid resumed>) = 0 [pid 5488] <... write resumed>) = 2 [pid 5487] exit_group(0 [pid 5079] lstat("./67/binderfs", [pid 5075] <... mkdir resumed>) = 0 [pid 5490] <... setpgid resumed>) = 0 [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5488] exit_group(0 [pid 5487] <... exit_group resumed>) = ? [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5489] <... openat resumed>) = 3 [pid 5488] <... exit_group resumed>) = ? [pid 5487] +++ exited with 0 +++ [pid 5079] unlink("./67/binderfs"./strace-static-x86_64: Process 5491 attached [pid 5490] <... openat resumed>) = 3 [pid 5489] write(3, "1000", 4 [pid 5488] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5491] chdir("./64" [pid 5490] write(3, "1000", 4 [pid 5489] <... write resumed>) = 4 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5491 [pid 5490] <... write resumed>) = 4 [pid 5489] close(3 [pid 5490] close(3 [pid 5489] <... close resumed>) = 0 [pid 5491] <... chdir resumed>) = 0 [pid 5490] <... close resumed>) = 0 [pid 5489] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] symlink("/dev/binderfs", "./binderfs" [pid 5489] <... symlink resumed>) = 0 [pid 5079] close(3 [pid 5076] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] <... prctl resumed>) = 0 [pid 5490] <... symlink resumed>) = 0 [pid 5489] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5490] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5489] <... madvise resumed>) = 0 [pid 5079] rmdir("./67" [pid 5076] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5491] setpgid(0, 0 [pid 5490] <... madvise resumed>) = 0 [pid 5489] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5491] <... setpgid resumed>) = 0 [pid 5490] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5489] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./68", 0777 [pid 5076] <... openat resumed>) = 3 [pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] <... openat resumed>) = 3 [pid 5489] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5076] fstat(3, [pid 5491] <... openat resumed>) = 3 [pid 5490] write(3, "1", 1 [pid 5489] <... write resumed>) = 1 [pid 5080] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5492 attached [pid 5491] write(3, "1000", 4 [pid 5490] <... write resumed>) = 1 [pid 5489] write(3, "\x32\x00", 2 [pid 5080] fstat(3, [pid 5492] chdir("./68" [pid 5491] <... write resumed>) = 4 [pid 5490] write(3, "\x32\x00", 2 [pid 5489] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5492 [pid 5076] getdents64(3, [pid 5491] close(3 [pid 5490] <... write resumed>) = 2 [pid 5489] exit_group(0 [pid 5080] getdents64(3, [pid 5491] <... close resumed>) = 0 [pid 5490] exit_group(0 [pid 5489] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5492] <... chdir resumed>) = 0 [pid 5491] symlink("/dev/binderfs", "./binderfs" [pid 5490] <... exit_group resumed>) = ? [pid 5489] +++ exited with 0 +++ [pid 5080] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5491] <... symlink resumed>) = 0 [pid 5490] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5491] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] lstat("./69/binderfs", [pid 5076] lstat("./67/binderfs", [pid 5491] <... madvise resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5491] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] unlink("./69/binderfs" [pid 5076] unlink("./67/binderfs" [pid 5491] <... openat resumed>) = 3 [pid 5077] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5491] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5492] <... prctl resumed>) = 0 [pid 5491] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5491] write(3, "\x32\x00", 2 [pid 5081] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] close(3 [pid 5077] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./67/binderfs", [pid 5492] setpgid(0, 0 [pid 5491] <... write resumed>) = 2 [pid 5081] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] rmdir("./69" [pid 5077] unlink("./67/binderfs" [pid 5076] <... close resumed>) = 0 [pid 5491] exit_group(0 [pid 5081] fstat(3, [pid 5077] <... unlink resumed>) = 0 [pid 5492] <... setpgid resumed>) = 0 [pid 5491] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] rmdir("./67" [pid 5081] getdents64(3, [pid 5080] mkdir("./70", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./67" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5081] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... mkdir resumed>) = 0 [pid 5077] mkdir("./68", 0777 [pid 5076] mkdir("./68", 0777 [pid 5491] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] lstat("./71/binderfs", [pid 5076] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5493 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] unlink("./71/binderfs"./strace-static-x86_64: Process 5494 attached [pid 5494] chdir("./70") = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5494 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5495 [pid 5075] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] close(3./strace-static-x86_64: Process 5495 attached ./strace-static-x86_64: Process 5493 attached [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5492] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5494] <... prctl resumed>) = 0 [pid 5492] write(3, "1000", 4 [pid 5081] rmdir("./71" [pid 5075] fstat(3, [pid 5494] setpgid(0, 0 [pid 5492] <... write resumed>) = 4 [pid 5494] <... setpgid resumed>) = 0 [pid 5493] chdir("./68" [pid 5081] <... rmdir resumed>) = 0 [pid 5492] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5493] <... chdir resumed>) = 0 [pid 5492] <... close resumed>) = 0 [pid 5081] mkdir("./72", 0777 [pid 5075] getdents64(3, [pid 5494] <... openat resumed>) = 3 [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5492] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... mkdir resumed>) = 0 [pid 5495] chdir("./68" [pid 5494] write(3, "1000", 4 [pid 5493] <... prctl resumed>) = 0 [pid 5492] <... symlink resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5495] <... chdir resumed>) = 0 [pid 5494] <... write resumed>) = 4 [pid 5493] setpgid(0, 0 [pid 5492] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5494] close(3 [pid 5493] <... setpgid resumed>) = 0 [pid 5075] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5496 attached [pid 5495] <... prctl resumed>) = 0 [pid 5494] <... close resumed>) = 0 [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5492] <... madvise resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5496 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] chdir("./72" [pid 5495] setpgid(0, 0 [pid 5494] symlink("/dev/binderfs", "./binderfs" [pid 5493] <... openat resumed>) = 3 [pid 5492] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] lstat("./64/binderfs", [pid 5496] <... chdir resumed>) = 0 [pid 5495] <... setpgid resumed>) = 0 [pid 5494] <... symlink resumed>) = 0 [pid 5493] write(3, "1000", 4 [pid 5492] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5494] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5493] <... write resumed>) = 4 [pid 5492] write(3, "1", 1 [pid 5075] unlink("./64/binderfs" [pid 5496] <... prctl resumed>) = 0 [pid 5495] <... openat resumed>) = 3 [pid 5494] <... madvise resumed>) = 0 [pid 5493] close(3 [pid 5492] <... write resumed>) = 1 [pid 5496] setpgid(0, 0 [pid 5495] write(3, "1000", 4 [pid 5494] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5493] <... close resumed>) = 0 [pid 5492] write(3, "\x32\x00", 2 [pid 5075] <... unlink resumed>) = 0 [pid 5496] <... setpgid resumed>) = 0 [pid 5495] <... write resumed>) = 4 [pid 5494] <... openat resumed>) = 3 [pid 5493] symlink("/dev/binderfs", "./binderfs" [pid 5495] close(3 [pid 5494] write(3, "1", 1 [pid 5493] <... symlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] <... close resumed>) = 0 [pid 5494] <... write resumed>) = 1 [pid 5493] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5492] <... write resumed>) = 2 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5496] <... openat resumed>) = 3 [pid 5495] symlink("/dev/binderfs", "./binderfs" [pid 5494] write(3, "\x32\x00", 2 [pid 5493] <... madvise resumed>) = 0 [pid 5075] close(3 [pid 5492] exit_group(0 [pid 5496] write(3, "1000", 4 [pid 5495] <... symlink resumed>) = 0 [pid 5494] <... write resumed>) = 2 [pid 5493] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5492] <... exit_group resumed>) = ? [pid 5075] <... close resumed>) = 0 [pid 5496] <... write resumed>) = 4 [pid 5495] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5494] exit_group(0 [pid 5493] <... openat resumed>) = 3 [pid 5075] rmdir("./64" [pid 5496] close(3 [pid 5495] <... madvise resumed>) = 0 [pid 5494] <... exit_group resumed>) = ? [pid 5493] write(3, "1", 1 [pid 5492] +++ exited with 0 +++ [pid 5496] <... close resumed>) = 0 [pid 5495] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5494] +++ exited with 0 +++ [pid 5493] <... write resumed>) = 1 [pid 5075] <... rmdir resumed>) = 0 [pid 5496] symlink("/dev/binderfs", "./binderfs" [pid 5495] <... openat resumed>) = 3 [pid 5493] write(3, "\x32\x00", 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5494, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] mkdir("./65", 0777 [pid 5496] <... symlink resumed>) = 0 [pid 5495] write(3, "1", 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5496] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5495] <... write resumed>) = 1 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5497 attached [pid 5496] <... madvise resumed>) = 0 [pid 5495] write(3, "\x32\x00", 2 [pid 5493] <... write resumed>) = 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5496] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5497 [pid 5496] <... openat resumed>) = 3 [pid 5496] write(3, "1", 1 [pid 5080] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5493] exit_group(0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5493] <... exit_group resumed>) = ? [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5493] +++ exited with 0 +++ [pid 5080] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] <... write resumed>) = 1 [pid 5495] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5497] chdir("./65" [pid 5496] write(3, "\x32\x00", 2 [pid 5495] exit_group(0 [pid 5080] lstat("./70/binderfs", [pid 5079] getdents64(3, [pid 5497] <... chdir resumed>) = 0 [pid 5495] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] <... write resumed>) = 2 [pid 5495] +++ exited with 0 +++ [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] <... prctl resumed>) = 0 [pid 5496] exit_group(0 [pid 5080] unlink("./70/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5497] setpgid(0, 0 [pid 5496] <... exit_group resumed>) = ? [pid 5079] lstat("./68/binderfs", [pid 5077] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5497] <... setpgid resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5079] unlink("./68/binderfs" [pid 5077] fstat(3, [pid 5076] <... restart_syscall resumed>) = 0 [pid 5497] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5497] write(3, "1000", 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5077] getdents64(3, [pid 5497] <... write resumed>) = 4 [pid 5081] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5497] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./70" [pid 5079] close(3 [pid 5077] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5497] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5080] mkdir("./71", 0777 [pid 5079] rmdir("./68" [pid 5077] lstat("./68/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5497] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] mkdir("./69", 0777 [pid 5077] unlink("./68/binderfs"./strace-static-x86_64: Process 5498 attached [pid 5497] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5498] chdir("./71" [pid 5497] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5498 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5498] <... chdir resumed>) = 0 [pid 5497] <... openat resumed>) = 3 [pid 5081] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5498] <... prctl resumed>) = 0 [pid 5497] write(3, "1", 1 [pid 5081] lstat("./72/binderfs", [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5499 attached [pid 5498] setpgid(0, 0 [pid 5497] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5499 [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5498] <... setpgid resumed>) = 0 [pid 5497] write(3, "\x32\x00", 2 [pid 5081] unlink("./72/binderfs" [pid 5077] <... close resumed>) = 0 [pid 5076] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] chdir("./69" [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5497] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5077] rmdir("./68" [pid 5499] <... chdir resumed>) = 0 [pid 5498] <... openat resumed>) = 3 [pid 5497] exit_group(0 [pid 5081] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5498] write(3, "1000", 4 [pid 5497] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] mkdir("./69", 0777 [pid 5076] lstat("./68/binderfs", [pid 5499] <... prctl resumed>) = 0 [pid 5498] <... write resumed>) = 4 [pid 5497] +++ exited with 0 +++ [pid 5081] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5499] setpgid(0, 0 [pid 5498] close(3 [pid 5081] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5500 attached [pid 5499] <... setpgid resumed>) = 0 [pid 5498] <... close resumed>) = 0 [pid 5081] rmdir("./72" [pid 5076] unlink("./68/binderfs" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5500] chdir("./69" [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5498] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5500 [pid 5500] <... chdir resumed>) = 0 [pid 5499] <... openat resumed>) = 3 [pid 5498] <... symlink resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5500] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5499] write(3, "1000", 4 [pid 5498] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] mkdir("./73", 0777 [pid 5500] <... prctl resumed>) = 0 [pid 5499] <... write resumed>) = 4 [pid 5498] <... madvise resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5500] setpgid(0, 0 [pid 5499] <... close resumed>) = 0 [pid 5498] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5500] <... setpgid resumed>) = 0 [pid 5499] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5076] close(3 [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5501 attached [pid 5500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5499] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5498] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5501 [pid 5076] <... close resumed>) = 0 [pid 5075] fstat(3, [pid 5501] chdir("./73" [pid 5500] <... openat resumed>) = 3 [pid 5499] <... madvise resumed>) = 0 [pid 5498] write(3, "1", 1 [pid 5076] rmdir("./68" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5501] <... chdir resumed>) = 0 [pid 5500] write(3, "1000", 4 [pid 5499] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5498] <... write resumed>) = 1 [pid 5499] <... openat resumed>) = 3 [pid 5499] write(3, "1", 1 [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5500] <... write resumed>) = 4 [pid 5499] <... write resumed>) = 1 [pid 5498] write(3, "\x32\x00", 2 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5501] <... prctl resumed>) = 0 [pid 5500] close(3 [pid 5499] write(3, "\x32\x00", 2 [pid 5501] setpgid(0, 0 [pid 5500] <... close resumed>) = 0 [pid 5499] <... write resumed>) = 2 [pid 5498] <... write resumed>) = 2 [pid 5076] mkdir("./69", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5501] <... setpgid resumed>) = 0 [pid 5500] symlink("/dev/binderfs", "./binderfs" [pid 5499] exit_group(0 [pid 5498] exit_group(0 [pid 5075] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5500] <... symlink resumed>) = 0 [pid 5499] <... exit_group resumed>) = ? [pid 5498] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5500] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5499] +++ exited with 0 +++ [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] lstat("./65/binderfs", [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./65/binderfs" [pid 5500] <... madvise resumed>) = 0 [pid 5079] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] <... unlink resumed>) = 0 [pid 5500] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5498] +++ exited with 0 +++ [pid 5079] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5502 [pid 5075] getdents64(3, [pid 5501] <... openat resumed>) = 3 [pid 5500] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5501] write(3, "1000", 4 [pid 5500] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5498, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5079] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5502 attached [pid 5501] <... write resumed>) = 4 [pid 5500] <... write resumed>) = 1 [pid 5080] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] close(3 [pid 5502] chdir("./69" [pid 5501] close(3 [pid 5500] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5502] <... chdir resumed>) = 0 [pid 5501] <... close resumed>) = 0 [pid 5500] <... write resumed>) = 2 [pid 5080] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] rmdir("./65" [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] symlink("/dev/binderfs", "./binderfs" [pid 5500] exit_group(0 [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] <... prctl resumed>) = 0 [pid 5501] <... symlink resumed>) = 0 [pid 5500] <... exit_group resumed>) = ? [pid 5080] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5502] setpgid(0, 0 [pid 5501] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] lstat("./69/binderfs", [pid 5075] mkdir("./66", 0777 [pid 5502] <... setpgid resumed>) = 0 [pid 5501] <... madvise resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5500] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./69/binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5502] <... openat resumed>) = 3 [pid 5501] <... openat resumed>) = 3 [pid 5080] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5502] write(3, "1000", 4 [pid 5501] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5500, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5503 attached [pid 5502] <... write resumed>) = 4 [pid 5501] <... write resumed>) = 1 [pid 5080] lstat("./71/binderfs", [pid 5079] getdents64(3, [pid 5502] close(3 [pid 5501] write(3, "\x32\x00", 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5503] chdir("./66" [pid 5502] <... close resumed>) = 0 [pid 5079] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5503 [pid 5502] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... close resumed>) = 0 [pid 5503] <... chdir resumed>) = 0 [pid 5502] <... symlink resumed>) = 0 [pid 5501] <... write resumed>) = 2 [pid 5080] unlink("./71/binderfs" [pid 5079] rmdir("./69" [pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5502] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5501] exit_group(0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5503] <... prctl resumed>) = 0 [pid 5502] <... madvise resumed>) = 0 [pid 5501] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5079] mkdir("./70", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5503] setpgid(0, 0 [pid 5502] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5503] <... setpgid resumed>) = 0 [pid 5502] <... openat resumed>) = 3 [pid 5501] +++ exited with 0 +++ [pid 5080] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5504 attached [pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] write(3, "1", 1 [pid 5080] <... close resumed>) = 0 [pid 5077] fstat(3, [pid 5502] <... write resumed>) = 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] rmdir("./71" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5504 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5504] chdir("./70" [pid 5503] <... openat resumed>) = 3 [pid 5502] write(3, "\x32\x00", 2 [pid 5081] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5504] <... chdir resumed>) = 0 [pid 5503] write(3, "1000", 4 [pid 5502] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5503] <... write resumed>) = 4 [pid 5502] exit_group(0 [pid 5081] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] mkdir("./72", 0777 [pid 5077] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5504] <... prctl resumed>) = 0 [pid 5503] close(3 [pid 5502] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] setpgid(0, 0 [pid 5503] <... close resumed>) = 0 [pid 5502] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5077] lstat("./69/binderfs", [pid 5504] <... setpgid resumed>) = 0 [pid 5503] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] getdents64(3, [pid 5077] unlink("./69/binderfs" [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5503] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... unlink resumed>) = 0 [pid 5504] <... openat resumed>) = 3 [pid 5503] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5505 [pid 5077] getdents64(3, [pid 5504] write(3, "1000", 4 [pid 5503] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5504] <... write resumed>) = 4 [pid 5503] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./73/binderfs", [pid 5077] close(3 [pid 5504] close(3 [pid 5503] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... close resumed>) = 0 ./strace-static-x86_64: Process 5505 attached [pid 5504] <... close resumed>) = 0 [pid 5503] write(3, "1", 1 [pid 5081] unlink("./73/binderfs" [pid 5077] rmdir("./69" [pid 5505] chdir("./72" [pid 5504] symlink("/dev/binderfs", "./binderfs" [pid 5503] <... write resumed>) = 1 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] <... chdir resumed>) = 0 [pid 5504] <... symlink resumed>) = 0 [pid 5503] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5077] mkdir("./70", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5504] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5505] <... prctl resumed>) = 0 [pid 5504] <... madvise resumed>) = 0 [pid 5503] <... write resumed>) = 2 [pid 5081] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5506 attached [pid 5505] setpgid(0, 0 [pid 5504] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5503] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5505] <... setpgid resumed>) = 0 [pid 5081] rmdir("./73" [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5506 [pid 5506] chdir("./70" [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5504] <... openat resumed>) = 3 [pid 5503] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5076] fstat(3, [pid 5506] <... chdir resumed>) = 0 [pid 5505] <... openat resumed>) = 3 [pid 5504] write(3, "1", 1 [pid 5081] mkdir("./74", 0777 [pid 5505] write(3, "1000", 4) = 4 [pid 5503] +++ exited with 0 +++ [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5505] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5505] <... close resumed>) = 0 [pid 5504] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5506] <... prctl resumed>) = 0 [pid 5505] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5507 attached [pid 5506] setpgid(0, 0 [pid 5505] <... symlink resumed>) = 0 [pid 5504] write(3, "\x32\x00", 2 [pid 5076] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5507] chdir("./74" [pid 5506] <... setpgid resumed>) = 0 [pid 5505] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5505] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5505] write(3, "1", 1) = 1 [pid 5504] <... write resumed>) = 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5507 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5507] <... chdir resumed>) = 0 [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5505] write(3, "\x32\x00", 2 [pid 5504] exit_group(0 [pid 5076] lstat("./69/binderfs", [pid 5075] <... restart_syscall resumed>) = 0 [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] <... openat resumed>) = 3 [pid 5505] <... write resumed>) = 2 [pid 5504] <... exit_group resumed>) = ? [pid 5507] <... prctl resumed>) = 0 [pid 5506] write(3, "1000", 4 [pid 5505] exit_group(0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5506] <... write resumed>) = 4 [pid 5505] <... exit_group resumed>) = ? [pid 5076] unlink("./69/binderfs" [pid 5507] setpgid(0, 0 [pid 5506] close(3 [pid 5505] +++ exited with 0 +++ [pid 5504] +++ exited with 0 +++ [pid 5507] <... setpgid resumed>) = 0 [pid 5506] <... close resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5505, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... unlink resumed>) = 0 [pid 5075] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5506] symlink("/dev/binderfs", "./binderfs" [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5506] <... symlink resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5507] <... openat resumed>) = 3 [pid 5506] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5507] write(3, "1000", 4 [pid 5075] <... openat resumed>) = 3 [pid 5507] <... write resumed>) = 4 [pid 5506] <... madvise resumed>) = 0 [pid 5076] close(3 [pid 5075] fstat(3, [pid 5507] close(3 [pid 5506] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5507] <... close resumed>) = 0 [pid 5506] <... openat resumed>) = 3 [pid 5080] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./69" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5507] symlink("/dev/binderfs", "./binderfs" [pid 5506] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5506] <... write resumed>) = 1 [pid 5080] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5506] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5076] mkdir("./70", 0777 [pid 5080] fstat(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5075] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./70/binderfs", [pid 5080] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./66/binderfs", [pid 5507] <... symlink resumed>) = 0 [pid 5506] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5508 [pid 5507] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5506] exit_group(0 [pid 5080] lstat("./72/binderfs", [pid 5079] unlink("./70/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5507] <... madvise resumed>) = 0 [pid 5506] <... exit_group resumed>) = ? [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5075] unlink("./66/binderfs"./strace-static-x86_64: Process 5508 attached [pid 5507] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] unlink("./72/binderfs" [pid 5079] getdents64(3, [pid 5508] chdir("./70" [pid 5507] <... openat resumed>) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5508] <... chdir resumed>) = 0 [pid 5507] write(3, "1", 1 [pid 5506] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5079] close(3 [pid 5075] getdents64(3, [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5508] <... prctl resumed>) = 0 [pid 5507] <... write resumed>) = 1 [pid 5080] close(3 [pid 5079] rmdir("./70" [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] close(3 [pid 5508] setpgid(0, 0 [pid 5507] write(3, "\x32\x00", 2 [pid 5080] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5508] <... setpgid resumed>) = 0 [pid 5080] rmdir("./72" [pid 5079] mkdir("./71", 0777 [pid 5075] <... close resumed>) = 0 [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] rmdir("./66" [pid 5508] <... openat resumed>) = 3 [pid 5507] exit_group(0 [pid 5080] mkdir("./73", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5509 attached [pid 5508] write(3, "1000", 4 [pid 5507] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5509] chdir("./71" [pid 5508] <... write resumed>) = 4 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5509 [pid 5077] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5508] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5075] mkdir("./67", 0777./strace-static-x86_64: Process 5510 attached [pid 5509] <... chdir resumed>) = 0 [pid 5508] <... close resumed>) = 0 [pid 5507] +++ exited with 0 +++ [pid 5077] fstat(3, [pid 5510] chdir("./73" [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5508] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5510 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5510] <... chdir resumed>) = 0 [pid 5509] <... prctl resumed>) = 0 [pid 5508] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5507, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5077] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] setpgid(0, 0 [pid 5508] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5511 attached [pid 5510] <... prctl resumed>) = 0 [pid 5509] <... setpgid resumed>) = 0 [pid 5508] <... madvise resumed>) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5511] chdir("./67" [pid 5510] setpgid(0, 0 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5508] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5511 [pid 5511] <... chdir resumed>) = 0 [pid 5510] <... setpgid resumed>) = 0 [pid 5509] <... openat resumed>) = 3 [pid 5508] <... openat resumed>) = 3 [pid 5077] lstat("./70/binderfs", [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5509] write(3, "1000", 4 [pid 5508] write(3, "1", 1 [pid 5081] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5511] <... prctl resumed>) = 0 [pid 5510] <... openat resumed>) = 3 [pid 5509] <... write resumed>) = 4 [pid 5508] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./70/binderfs" [pid 5511] setpgid(0, 0 [pid 5510] write(3, "1000", 4 [pid 5509] close(3 [pid 5508] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5511] <... setpgid resumed>) = 0 [pid 5510] <... write resumed>) = 4 [pid 5509] <... close resumed>) = 0 [pid 5508] <... write resumed>) = 2 [pid 5081] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5510] close(3 [pid 5509] symlink("/dev/binderfs", "./binderfs" [pid 5508] exit_group(0 [pid 5081] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5510] <... close resumed>) = 0 [pid 5509] <... symlink resumed>) = 0 [pid 5508] <... exit_group resumed>) = ? [pid 5077] close(3 [pid 5511] <... openat resumed>) = 3 [pid 5510] symlink("/dev/binderfs", "./binderfs" [pid 5509] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5508] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5511] write(3, "1000", 4 [pid 5510] <... symlink resumed>) = 0 [pid 5509] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5077] rmdir("./70" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5511] <... write resumed>) = 4 [pid 5510] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5509] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... rmdir resumed>) = 0 [pid 5511] close(3 [pid 5510] <... madvise resumed>) = 0 [pid 5509] <... openat resumed>) = 3 [pid 5081] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./71", 0777 [pid 5511] <... close resumed>) = 0 [pid 5510] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5509] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... mkdir resumed>) = 0 [pid 5511] symlink("/dev/binderfs", "./binderfs" [pid 5510] <... openat resumed>) = 3 [pid 5509] <... write resumed>) = 1 [pid 5081] lstat("./74/binderfs", [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5510] write(3, "1", 1 [pid 5509] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5512 [pid 5511] <... symlink resumed>) = 0 [pid 5511] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5511] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5511] write(3, "1", 1 [pid 5081] unlink("./74/binderfs" [pid 5076] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... unlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5076] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./74" [pid 5076] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./75", 0777 [pid 5076] fstat(3, ./strace-static-x86_64: Process 5512 attached [pid 5081] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5512] chdir("./71" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] <... chdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./70/binderfs", [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5513 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./70/binderfs" [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5512] setpgid(0, 0 [pid 5076] <... unlink resumed>) = 0 [pid 5512] <... setpgid resumed>) = 0 [pid 5076] getdents64(3, [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5512] <... openat resumed>) = 3 [pid 5511] <... write resumed>) = 1 [pid 5510] <... write resumed>) = 1 [pid 5076] close(3 [pid 5512] write(3, "1000", 4 [pid 5511] write(3, "\x32\x00", 2 [pid 5510] write(3, "\x32\x00", 2 [pid 5509] <... write resumed>) = 2 [pid 5076] <... close resumed>) = 0 [pid 5512] <... write resumed>) = 4 [pid 5511] <... write resumed>) = 2 [pid 5510] <... write resumed>) = 2 [pid 5509] exit_group(0 [pid 5076] rmdir("./70"./strace-static-x86_64: Process 5513 attached [pid 5512] close(3 [pid 5511] exit_group(0 [pid 5510] exit_group(0 [pid 5513] chdir("./75" [pid 5512] <... close resumed>) = 0 [pid 5511] <... exit_group resumed>) = ? [pid 5510] <... exit_group resumed>) = ? [pid 5509] <... exit_group resumed>) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5513] <... chdir resumed>) = 0 [pid 5512] symlink("/dev/binderfs", "./binderfs" [pid 5511] +++ exited with 0 +++ [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5512] <... symlink resumed>) = 0 [pid 5510] +++ exited with 0 +++ [pid 5076] mkdir("./71", 0777 [pid 5513] <... prctl resumed>) = 0 [pid 5512] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5513] setpgid(0, 0 [pid 5512] <... madvise resumed>) = 0 [pid 5513] <... setpgid resumed>) = 0 [pid 5512] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5510, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5512] <... openat resumed>) = 3 [pid 5509] +++ exited with 0 +++ [pid 5080] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5513] <... openat resumed>) = 3 [pid 5512] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5513] write(3, "1000", 4 [pid 5512] <... write resumed>) = 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5509, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5514 attached [pid 5513] <... write resumed>) = 4 [pid 5512] write(3, "\x32\x00", 2 [pid 5080] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... restart_syscall resumed>) = 0 [pid 5514] chdir("./71" [pid 5513] close(3 [pid 5512] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5514 [pid 5513] <... close resumed>) = 0 [pid 5512] exit_group(0 [pid 5080] fstat(3, [pid 5079] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5513] symlink("/dev/binderfs", "./binderfs" [pid 5512] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5514] <... chdir resumed>) = 0 [pid 5513] <... symlink resumed>) = 0 [pid 5512] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5075] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5513] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5514] <... prctl resumed>) = 0 [pid 5513] <... madvise resumed>) = 0 [pid 5080] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5514] setpgid(0, 0 [pid 5513] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5514] <... setpgid resumed>) = 0 [pid 5513] <... openat resumed>) = 3 [pid 5080] lstat("./73/binderfs", [pid 5079] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] write(3, "1", 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5514] <... openat resumed>) = 3 [pid 5513] <... write resumed>) = 1 [pid 5080] unlink("./73/binderfs" [pid 5079] lstat("./71/binderfs", [pid 5077] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5514] write(3, "1000", 4 [pid 5513] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5514] <... write resumed>) = 4 [pid 5513] <... write resumed>) = 2 [pid 5079] unlink("./71/binderfs" [pid 5077] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5514] close(3 [pid 5513] exit_group(0 [pid 5080] getdents64(3, [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5514] <... close resumed>) = 0 [pid 5513] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(3, [pid 5077] fstat(3, [pid 5075] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] symlink("/dev/binderfs", "./binderfs" [pid 5513] +++ exited with 0 +++ [pid 5080] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5514] <... symlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5514] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./67/binderfs", [pid 5514] <... madvise resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] rmdir("./73" [pid 5079] rmdir("./71" [pid 5077] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5514] <... openat resumed>) = 3 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] mkdir("./72", 0777 [pid 5077] lstat("./71/binderfs", [pid 5075] unlink("./67/binderfs" [pid 5514] write(3, "1", 1 [pid 5080] mkdir("./74", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./71/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5514] <... write resumed>) = 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5514] write(3, "\x32\x00", 2 [pid 5081] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5515 [pid 5077] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./71") = 0 [pid 5514] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] mkdir("./72", 0777) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(3 [pid 5514] exit_group(0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5516 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5517 [pid 5514] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5075] rmdir("./67" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5516 attached [pid 5516] chdir("./74" [pid 5081] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5516] <... chdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] mkdir("./68", 0777 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5517 attached [pid 5516] <... prctl resumed>) = 0 [pid 5514] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5517] chdir("./72" [pid 5516] setpgid(0, 0 [pid 5081] lstat("./75/binderfs", [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5517] <... chdir resumed>) = 0 [pid 5516] <... setpgid resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] unlink("./75/binderfs" [pid 5076] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5518 attached ./strace-static-x86_64: Process 5515 attached [pid 5517] <... prctl resumed>) = 0 [pid 5516] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5518 [pid 5517] setpgid(0, 0 [pid 5516] write(3, "1000", 4 [pid 5081] getdents64(3, [pid 5517] <... setpgid resumed>) = 0 [pid 5516] <... write resumed>) = 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5516] close(3 [pid 5515] chdir("./72" [pid 5081] close(3 [pid 5517] <... openat resumed>) = 3 [pid 5516] <... close resumed>) = 0 [pid 5515] <... chdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5076] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] chdir("./68" [pid 5517] write(3, "1000", 4 [pid 5516] symlink("/dev/binderfs", "./binderfs" [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] rmdir("./75" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] <... chdir resumed>) = 0 [pid 5517] <... write resumed>) = 4 [pid 5516] <... symlink resumed>) = 0 [pid 5515] <... prctl resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5517] close(3 [pid 5516] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5515] setpgid(0, 0 [pid 5081] mkdir("./76", 0777 [pid 5518] <... prctl resumed>) = 0 [pid 5517] <... close resumed>) = 0 [pid 5516] <... madvise resumed>) = 0 [pid 5515] <... setpgid resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5518] setpgid(0, 0 [pid 5517] symlink("/dev/binderfs", "./binderfs" [pid 5516] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5519 attached [pid 5518] <... setpgid resumed>) = 0 [pid 5517] <... symlink resumed>) = 0 [pid 5516] <... openat resumed>) = 3 [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] fstat(3, [pid 5518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5517] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5516] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5519 [pid 5515] <... openat resumed>) = 3 [pid 5519] chdir("./76" [pid 5518] <... openat resumed>) = 3 [pid 5517] <... madvise resumed>) = 0 [pid 5516] <... write resumed>) = 1 [pid 5515] write(3, "1000", 4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5518] write(3, "1000", 4 [pid 5517] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5516] write(3, "\x32\x00", 2 [pid 5515] <... write resumed>) = 4 [pid 5076] getdents64(3, [pid 5519] <... chdir resumed>) = 0 [pid 5518] <... write resumed>) = 4 [pid 5517] <... openat resumed>) = 3 [pid 5516] <... write resumed>) = 2 [pid 5515] close(3 [pid 5518] close(3 [pid 5517] write(3, "1", 1 [pid 5516] exit_group(0 [pid 5515] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5518] <... close resumed>) = 0 [pid 5517] <... write resumed>) = 1 [pid 5516] <... exit_group resumed>) = ? [pid 5515] symlink("/dev/binderfs", "./binderfs" [pid 5076] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] <... prctl resumed>) = 0 [pid 5518] symlink("/dev/binderfs", "./binderfs" [pid 5517] write(3, "\x32\x00", 2 [pid 5516] +++ exited with 0 +++ [pid 5515] <... symlink resumed>) = 0 [pid 5519] setpgid(0, 0 [pid 5518] <... symlink resumed>) = 0 [pid 5517] <... write resumed>) = 2 [pid 5515] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5517] exit_group(0 [pid 5519] <... setpgid resumed>) = 0 [pid 5518] <... madvise resumed>) = 0 [pid 5517] <... exit_group resumed>) = ? [pid 5515] <... madvise resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] lstat("./71/binderfs", [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5517] +++ exited with 0 +++ [pid 5515] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5519] <... openat resumed>) = 3 [pid 5518] <... openat resumed>) = 3 [pid 5515] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] unlink("./71/binderfs" [pid 5519] write(3, "1000", 4 [pid 5518] write(3, "1", 1 [pid 5515] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5519] <... write resumed>) = 4 [pid 5518] <... write resumed>) = 1 [pid 5515] <... write resumed>) = 1 [pid 5080] <... openat resumed>) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5519] close(3 [pid 5518] write(3, "\x32\x00", 2 [pid 5515] write(3, "\x32\x00", 2 [pid 5080] fstat(3, [pid 5077] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5519] <... close resumed>) = 0 [pid 5518] <... write resumed>) = 2 [pid 5515] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5519] symlink("/dev/binderfs", "./binderfs" [pid 5518] exit_group(0 [pid 5515] exit_group(0 [pid 5080] getdents64(3, [pid 5077] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5519] <... symlink resumed>) = 0 [pid 5518] <... exit_group resumed>) = ? [pid 5515] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5519] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5518] +++ exited with 0 +++ [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5515] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./71" [pid 5519] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] lstat("./72/binderfs", [pid 5080] lstat("./74/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5519] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./72/binderfs" [pid 5076] mkdir("./72", 0777 [pid 5075] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] <... openat resumed>) = 3 [pid 5080] unlink("./74/binderfs" [pid 5079] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5079] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] write(3, "1", 1 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5519] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5077] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] rmdir("./72" [pid 5519] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] mkdir("./73", 0777 [pid 5079] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5519] <... write resumed>) = 2 [pid 5080] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5520 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5520 attached [pid 5519] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5079] lstat("./72/binderfs", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5521 attached [pid 5520] chdir("./72" [pid 5519] <... exit_group resumed>) = ? [pid 5080] rmdir("./74" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5521 [pid 5075] getdents64(3, [pid 5520] <... chdir resumed>) = 0 [pid 5079] unlink("./72/binderfs" [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... unlink resumed>) = 0 [pid 5520] <... prctl resumed>) = 0 [pid 5519] +++ exited with 0 +++ [pid 5079] getdents64(3, [pid 5520] setpgid(0, 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5520] <... setpgid resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... rmdir resumed>) = 0 [pid 5079] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] mkdir("./75", 0777 [pid 5079] <... close resumed>) = 0 [pid 5075] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5521] chdir("./73" [pid 5520] <... openat resumed>) = 3 [pid 5079] rmdir("./72" [pid 5521] <... chdir resumed>) = 0 [pid 5520] write(3, "1000", 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5520] <... write resumed>) = 4 [pid 5081] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] mkdir("./73", 0777 [pid 5520] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mkdir resumed>) = 0 [pid 5075] lstat("./68/binderfs", [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5520] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5523 attached [pid 5521] <... prctl resumed>) = 0 [pid 5520] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5522 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5521] setpgid(0, 0 [pid 5520] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5523 [pid 5075] unlink("./68/binderfs" [pid 5521] <... setpgid resumed>) = 0 [pid 5520] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5520] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... unlink resumed>) = 0 [pid 5520] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5522 attached [pid 5521] <... openat resumed>) = 3 [pid 5520] <... openat resumed>) = 3 [pid 5081] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] chdir("./75" [pid 5521] write(3, "1000", 4 [pid 5520] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5522] <... chdir resumed>) = 0 [pid 5521] <... write resumed>) = 4 [pid 5520] <... write resumed>) = 1 [pid 5081] lstat("./76/binderfs", [pid 5075] close(3 [pid 5523] chdir("./73" [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5521] close(3 [pid 5520] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5523] <... chdir resumed>) = 0 [pid 5522] <... prctl resumed>) = 0 [pid 5521] <... close resumed>) = 0 [pid 5520] <... write resumed>) = 2 [pid 5081] unlink("./76/binderfs" [pid 5075] rmdir("./68" [pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5522] setpgid(0, 0 [pid 5521] symlink("/dev/binderfs", "./binderfs" [pid 5520] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5522] <... setpgid resumed>) = 0 [pid 5520] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5523] <... prctl resumed>) = 0 [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5521] <... symlink resumed>) = 0 [pid 5520] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./69", 0777 [pid 5523] setpgid(0, 0 [pid 5522] <... openat resumed>) = 3 [pid 5521] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] close(3 [pid 5522] write(3, "1000", 4 [pid 5081] <... close resumed>) = 0 [pid 5522] <... write resumed>) = 4 [pid 5521] <... madvise resumed>) = 0 [pid 5081] rmdir("./76" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5523] <... setpgid resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5522] close(3 [pid 5521] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... rmdir resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5522] <... close resumed>) = 0 [pid 5081] mkdir("./77", 0777 [pid 5523] <... openat resumed>) = 3 [pid 5522] symlink("/dev/binderfs", "./binderfs" [pid 5521] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5523] write(3, "1000", 4 [pid 5522] <... symlink resumed>) = 0 [pid 5521] write(3, "1", 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5523] <... write resumed>) = 4 [pid 5522] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5521] <... write resumed>) = 1 [pid 5523] close(3 [pid 5522] <... madvise resumed>) = 0 [pid 5521] write(3, "\x32\x00", 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5524 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5525 [pid 5523] <... close resumed>) = 0 [pid 5522] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5522] write(3, "1", 1 [pid 5523] symlink("/dev/binderfs", "./binderfs" [pid 5522] <... write resumed>) = 1 [pid 5521] <... write resumed>) = 2 [pid 5076] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5523] <... symlink resumed>) = 0 [pid 5522] write(3, "\x32\x00", 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5525 attached [pid 5523] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5522] <... write resumed>) = 2 [pid 5521] exit_group(0 [pid 5076] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5523] <... madvise resumed>) = 0 [pid 5522] exit_group(0 [pid 5521] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5524 attached [pid 5523] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5522] <... exit_group resumed>) = ? [pid 5076] <... openat resumed>) = 3 [pid 5525] chdir("./69" [pid 5524] chdir("./77" [pid 5523] <... openat resumed>) = 3 [pid 5522] +++ exited with 0 +++ [pid 5521] +++ exited with 0 +++ [pid 5076] fstat(3, [pid 5525] <... chdir resumed>) = 0 [pid 5524] <... chdir resumed>) = 0 [pid 5523] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5523] <... write resumed>) = 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5525] <... prctl resumed>) = 0 [pid 5524] <... prctl resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5076] getdents64(3, [pid 5525] setpgid(0, 0 [pid 5524] setpgid(0, 0 [pid 5523] write(3, "\x32\x00", 2 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5525] <... setpgid resumed>) = 0 [pid 5524] <... setpgid resumed>) = 0 [pid 5080] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5525] <... openat resumed>) = 3 [pid 5524] <... openat resumed>) = 3 [pid 5523] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] write(3, "1000", 4 [pid 5524] write(3, "1000", 4 [pid 5523] exit_group(0 [pid 5080] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5525] <... write resumed>) = 4 [pid 5524] <... write resumed>) = 4 [pid 5523] <... exit_group resumed>) = ? [pid 5077] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5525] close(3 [pid 5524] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5076] lstat("./72/binderfs", [pid 5525] <... close resumed>) = 0 [pid 5524] <... close resumed>) = 0 [pid 5077] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5525] symlink("/dev/binderfs", "./binderfs" [pid 5524] symlink("/dev/binderfs", "./binderfs" [pid 5523] +++ exited with 0 +++ [pid 5080] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./72/binderfs" [pid 5525] <... symlink resumed>) = 0 [pid 5524] <... symlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5525] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5524] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... unlink resumed>) = 0 [pid 5525] <... madvise resumed>) = 0 [pid 5524] <... madvise resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5525] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5524] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5525] <... openat resumed>) = 3 [pid 5524] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] lstat("./73/binderfs", [pid 5076] close(3 [pid 5525] write(3, "1", 1 [pid 5524] write(3, "1", 1 [pid 5080] lstat("./75/binderfs", [pid 5079] <... openat resumed>) = 3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5525] <... write resumed>) = 1 [pid 5524] <... write resumed>) = 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] fstat(3, [pid 5077] unlink("./73/binderfs" [pid 5076] <... close resumed>) = 0 [pid 5525] write(3, "\x32\x00", 2 [pid 5524] write(3, "\x32\x00", 2 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] unlink("./75/binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5076] rmdir("./72" [pid 5525] <... write resumed>) = 2 [pid 5524] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5077] getdents64(3, [pid 5525] exit_group(0 [pid 5524] exit_group(0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5525] <... exit_group resumed>) = ? [pid 5524] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5079] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5076] mkdir("./73", 0777 [pid 5525] +++ exited with 0 +++ [pid 5524] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] lstat("./73/binderfs", [pid 5077] rmdir("./73" [pid 5080] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... close resumed>) = 0 [pid 5079] unlink("./73/binderfs" [pid 5077] mkdir("./74", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] rmdir("./75" [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] mkdir("./76", 0777 [pid 5079] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5527 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5526 [pid 5075] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... mkdir resumed>) = 0 [pid 5079] rmdir("./73" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... rmdir resumed>) = 0 [pid 5081] fstat(3, [pid 5079] mkdir("./74", 0777 [pid 5075] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5526 attached [pid 5081] getdents64(3, [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5528 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5529 attached ./strace-static-x86_64: Process 5527 attached [pid 5526] chdir("./73" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] fstat(3, [pid 5526] <... chdir resumed>) = 0 [pid 5081] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5529 [pid 5527] chdir("./74" [pid 5526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5527] <... chdir resumed>) = 0 [pid 5526] <... prctl resumed>) = 0 [pid 5081] lstat("./77/binderfs", [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5528 attached [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5526] setpgid(0, 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5528] chdir("./76" [pid 5527] <... prctl resumed>) = 0 [pid 5526] <... setpgid resumed>) = 0 [pid 5081] unlink("./77/binderfs" [pid 5075] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] chdir("./74" [pid 5528] <... chdir resumed>) = 0 [pid 5527] setpgid(0, 0 [pid 5526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5529] <... chdir resumed>) = 0 [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] <... setpgid resumed>) = 0 [pid 5526] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5075] lstat("./69/binderfs", [pid 5528] <... prctl resumed>) = 0 [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5526] write(3, "1000", 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] setpgid(0, 0 [pid 5527] <... openat resumed>) = 3 [pid 5526] <... write resumed>) = 4 [pid 5081] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5529] <... prctl resumed>) = 0 [pid 5528] <... setpgid resumed>) = 0 [pid 5527] write(3, "1000", 4 [pid 5526] close(3 [pid 5081] <... close resumed>) = 0 [pid 5075] unlink("./69/binderfs" [pid 5529] setpgid(0, 0 [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5527] <... write resumed>) = 4 [pid 5526] <... close resumed>) = 0 [pid 5081] rmdir("./77" [pid 5529] <... setpgid resumed>) = 0 [pid 5528] <... openat resumed>) = 3 [pid 5527] close(3 [pid 5526] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... rmdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5528] write(3, "1000", 4 [pid 5527] <... close resumed>) = 0 [pid 5526] <... symlink resumed>) = 0 [pid 5081] mkdir("./78", 0777 [pid 5075] getdents64(3, [pid 5529] <... openat resumed>) = 3 [pid 5528] <... write resumed>) = 4 [pid 5527] symlink("/dev/binderfs", "./binderfs" [pid 5526] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5529] write(3, "1000", 4 [pid 5528] close(3 [pid 5527] <... symlink resumed>) = 0 [pid 5526] <... madvise resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3./strace-static-x86_64: Process 5530 attached [pid 5529] <... write resumed>) = 4 [pid 5528] <... close resumed>) = 0 [pid 5527] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5526] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... close resumed>) = 0 [pid 5529] close(3 [pid 5528] symlink("/dev/binderfs", "./binderfs" [pid 5527] <... madvise resumed>) = 0 [pid 5526] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5530 [pid 5529] <... close resumed>) = 0 [pid 5528] <... symlink resumed>) = 0 [pid 5527] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5526] write(3, "1", 1 [pid 5075] rmdir("./69" [pid 5530] chdir("./78" [pid 5529] symlink("/dev/binderfs", "./binderfs" [pid 5528] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5527] <... openat resumed>) = 3 [pid 5526] <... write resumed>) = 1 [pid 5528] <... madvise resumed>) = 0 [pid 5529] <... symlink resumed>) = 0 [pid 5526] write(3, "\x32\x00", 2 [pid 5075] <... rmdir resumed>) = 0 [pid 5530] <... chdir resumed>) = 0 [pid 5529] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5528] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5527] write(3, "1", 1 [pid 5075] mkdir("./70", 0777 [pid 5529] <... madvise resumed>) = 0 [pid 5528] <... openat resumed>) = 3 [pid 5527] <... write resumed>) = 1 [pid 5526] <... write resumed>) = 2 [pid 5528] write(3, "1", 1 [pid 5527] write(3, "\x32\x00", 2 [pid 5526] exit_group(0 [pid 5075] <... mkdir resumed>) = 0 [pid 5529] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5528] <... write resumed>) = 1 [pid 5526] <... exit_group resumed>) = ? [pid 5528] write(3, "\x32\x00", 2 [pid 5526] +++ exited with 0 +++ [pid 5530] <... prctl resumed>) = 0 [pid 5529] <... openat resumed>) = 3 [pid 5528] <... write resumed>) = 2 [pid 5527] <... write resumed>) = 2 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5530] setpgid(0, 0 [pid 5529] write(3, "1", 1 [pid 5528] exit_group(0 [pid 5527] exit_group(0./strace-static-x86_64: Process 5531 attached [pid 5530] <... setpgid resumed>) = 0 [pid 5529] <... write resumed>) = 1 [pid 5528] <... exit_group resumed>) = ? [pid 5527] <... exit_group resumed>) = ? [pid 5531] chdir("./70" [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5529] write(3, "\x32\x00", 2 [pid 5528] +++ exited with 0 +++ [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5531 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5528, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5529] <... write resumed>) = 2 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5530] <... openat resumed>) = 3 [pid 5529] exit_group(0 [pid 5531] <... chdir resumed>) = 0 [pid 5530] write(3, "1000", 4 [pid 5529] <... exit_group resumed>) = ? [pid 5527] +++ exited with 0 +++ [pid 5531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5530] <... write resumed>) = 4 [pid 5080] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... prctl resumed>) = 0 [pid 5530] close(3 [pid 5529] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] setpgid(0, 0 [pid 5530] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... setpgid resumed>) = 0 [pid 5530] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5530] <... symlink resumed>) = 0 [pid 5080] fstat(3, [pid 5077] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5530] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5531] <... openat resumed>) = 3 [pid 5530] <... madvise resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5531] write(3, "1000", 4 [pid 5530] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5531] <... write resumed>) = 4 [pid 5530] <... openat resumed>) = 3 [pid 5080] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5531] close(3 [pid 5530] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5531] <... close resumed>) = 0 [pid 5530] <... write resumed>) = 1 [pid 5080] lstat("./76/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5531] symlink("/dev/binderfs", "./binderfs" [pid 5530] write(3, "\x32\x00", 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] unlink("./76/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] lstat("./74/binderfs", [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5531] <... symlink resumed>) = 0 [pid 5530] <... write resumed>) = 2 [pid 5080] <... unlink resumed>) = 0 [pid 5079] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5530] exit_group(0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./74/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5531] <... madvise resumed>) = 0 [pid 5530] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] lstat("./74/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./73/binderfs", [pid 5531] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5530] +++ exited with 0 +++ [pid 5531] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5079] unlink("./74/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] rmdir("./76" [pid 5079] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5531] write(3, "1", 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] unlink("./73/binderfs" [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] mkdir("./77", 0777 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] rmdir("./74" [pid 5531] <... write resumed>) = 1 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] close(3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5531] write(3, "\x32\x00", 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... close resumed>) = 0 [pid 5077] mkdir("./75", 0777 [pid 5076] getdents64(3, [pid 5531] <... write resumed>) = 2 [pid 5079] rmdir("./74" [pid 5077] <... mkdir resumed>) = 0 [pid 5531] exit_group(0 [pid 5081] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5532 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5533 attached [pid 5531] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./75", 0777 [pid 5076] close(3 [pid 5081] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5533 [pid 5531] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 ./strace-static-x86_64: Process 5534 attached [pid 5533] chdir("./75" [pid 5081] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5534 [pid 5081] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5532 attached ) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./73" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5531, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5533] <... chdir resumed>) = 0 [pid 5532] chdir("./77" [pid 5081] lstat("./78/binderfs", [pid 5532] <... chdir resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5534] chdir("./75" [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] unlink("./78/binderfs" [pid 5076] mkdir("./74", 0777 [pid 5534] <... chdir resumed>) = 0 [pid 5533] <... prctl resumed>) = 0 [pid 5532] <... prctl resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5532] setpgid(0, 0 [pid 5081] getdents64(3, [pid 5532] <... setpgid resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5533] setpgid(0, 0 [pid 5075] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5533] <... setpgid resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5532] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5532] write(3, "1000", 4 [pid 5081] rmdir("./78" [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] <... write resumed>) = 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5534] <... prctl resumed>) = 0 [pid 5533] <... openat resumed>) = 3 [pid 5532] close(3 [pid 5081] mkdir("./79", 0777 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5535 ./strace-static-x86_64: Process 5535 attached [pid 5534] setpgid(0, 0 [pid 5533] write(3, "1000", 4 [pid 5532] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5534] <... setpgid resumed>) = 0 [pid 5533] <... write resumed>) = 4 [pid 5532] symlink("/dev/binderfs", "./binderfs" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, ./strace-static-x86_64: Process 5536 attached [pid 5535] chdir("./74" [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5533] close(3 [pid 5532] <... symlink resumed>) = 0 [pid 5535] <... chdir resumed>) = 0 [pid 5534] <... openat resumed>) = 3 [pid 5533] <... close resumed>) = 0 [pid 5532] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5536 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5534] write(3, "1000", 4 [pid 5533] symlink("/dev/binderfs", "./binderfs" [pid 5532] <... madvise resumed>) = 0 [pid 5535] <... prctl resumed>) = 0 [pid 5534] <... write resumed>) = 4 [pid 5533] <... symlink resumed>) = 0 [pid 5532] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] getdents64(3, [pid 5535] setpgid(0, 0 [pid 5534] close(3 [pid 5533] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5532] <... openat resumed>) = 3 [pid 5535] <... setpgid resumed>) = 0 [pid 5534] <... close resumed>) = 0 [pid 5533] <... madvise resumed>) = 0 [pid 5532] write(3, "1", 1 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5536] chdir("./79" [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5534] symlink("/dev/binderfs", "./binderfs" [pid 5533] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5532] <... write resumed>) = 1 [pid 5075] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] <... openat resumed>) = 3 [pid 5534] <... symlink resumed>) = 0 [pid 5532] write(3, "\x32\x00", 2 [pid 5536] <... chdir resumed>) = 0 [pid 5535] write(3, "1000", 4 [pid 5534] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5533] <... openat resumed>) = 3 [pid 5532] <... write resumed>) = 2 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] <... write resumed>) = 4 [pid 5534] <... madvise resumed>) = 0 [pid 5533] write(3, "1", 1 [pid 5532] exit_group(0 [pid 5075] lstat("./70/binderfs", [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] close(3 [pid 5534] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5533] <... write resumed>) = 1 [pid 5532] <... exit_group resumed>) = ? [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5536] <... prctl resumed>) = 0 [pid 5535] <... close resumed>) = 0 [pid 5534] <... openat resumed>) = 3 [pid 5533] write(3, "\x32\x00", 2 [pid 5532] +++ exited with 0 +++ [pid 5075] unlink("./70/binderfs" [pid 5536] setpgid(0, 0 [pid 5535] symlink("/dev/binderfs", "./binderfs" [pid 5536] <... setpgid resumed>) = 0 [pid 5535] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5535] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5536] <... openat resumed>) = 3 [pid 5535] <... madvise resumed>) = 0 [pid 5534] write(3, "1", 1 [pid 5533] <... write resumed>) = 2 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5536] write(3, "1000", 4 [pid 5535] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5534] <... write resumed>) = 1 [pid 5533] exit_group(0 [pid 5075] getdents64(3, [pid 5536] <... write resumed>) = 4 [pid 5535] <... openat resumed>) = 3 [pid 5534] write(3, "\x32\x00", 2 [pid 5533] <... exit_group resumed>) = ? [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5536] close(3 [pid 5535] write(3, "1", 1 [pid 5080] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5536] symlink("/dev/binderfs", "./binderfs" [pid 5533] +++ exited with 0 +++ [pid 5080] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5536] <... symlink resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... close resumed>) = 0 [pid 5535] <... write resumed>) = 1 [pid 5536] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] fstat(3, [pid 5075] rmdir("./70" [pid 5536] <... madvise resumed>) = 0 [pid 5535] write(3, "\x32\x00", 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5536] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5534] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5536] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5536] write(3, "1", 1 [pid 5080] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... write resumed>) = 1 [pid 5535] <... write resumed>) = 2 [pid 5534] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./71", 0777 [pid 5536] write(3, "\x32\x00", 2 [pid 5535] exit_group(0 [pid 5534] <... exit_group resumed>) = ? [pid 5080] lstat("./77/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5536] <... write resumed>) = 2 [pid 5535] <... exit_group resumed>) = ? [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5536] exit_group(0 [pid 5534] +++ exited with 0 +++ [pid 5080] unlink("./77/binderfs" [pid 5077] <... openat resumed>) = 3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5536] <... exit_group resumed>) = ? [pid 5535] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] fstat(3, ./strace-static-x86_64: Process 5537 attached [pid 5536] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5535, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5537] chdir("./71" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5536, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5537 [pid 5537] <... chdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5537] <... prctl resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5537] setpgid(0, 0 [pid 5080] rmdir("./77" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5537] <... setpgid resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] lstat("./75/binderfs", [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] mkdir("./78", 0777 [pid 5079] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5537] <... openat resumed>) = 3 [pid 5081] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./75/binderfs" [pid 5076] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5537] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5538 attached [pid 5537] <... write resumed>) = 4 [pid 5081] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] chdir("./78" [pid 5537] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5538 [pid 5079] fstat(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5538] <... chdir resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(3 [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5537] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5538] <... prctl resumed>) = 0 [pid 5537] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] rmdir("./75" [pid 5538] setpgid(0, 0 [pid 5537] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5076] fstat(3, [pid 5538] <... setpgid resumed>) = 0 [pid 5537] <... madvise resumed>) = 0 [pid 5081] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] mkdir("./76", 0777 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5537] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./75/binderfs", [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5537] <... openat resumed>) = 3 [pid 5081] lstat("./79/binderfs", [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5539 attached [pid 5538] <... openat resumed>) = 3 [pid 5537] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./75/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5539] chdir("./76" [pid 5538] write(3, "1000", 4 [pid 5537] <... write resumed>) = 1 [pid 5081] unlink("./79/binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5539 [pid 5076] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... chdir resumed>) = 0 [pid 5538] <... write resumed>) = 4 [pid 5537] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5538] close(3 [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5081] close(3 [pid 5079] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] rmdir("./75" [pid 5538] <... close resumed>) = 0 [pid 5537] <... write resumed>) = 2 [pid 5081] rmdir("./79" [pid 5079] <... rmdir resumed>) = 0 [pid 5076] lstat("./74/binderfs", [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5538] symlink("/dev/binderfs", "./binderfs" [pid 5537] exit_group(0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] mkdir("./76", 0777 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5539] <... prctl resumed>) = 0 [pid 5538] <... symlink resumed>) = 0 [pid 5537] <... exit_group resumed>) = ? [pid 5081] mkdir("./80", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] unlink("./74/binderfs" [pid 5538] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5538] <... madvise resumed>) = 0 [pid 5537] +++ exited with 0 +++ [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5541 attached [pid 5539] setpgid(0, 0 [pid 5538] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5540 [pid 5076] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5538] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5541 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5539] <... setpgid resumed>) = 0 [pid 5538] write(3, "1", 1 [pid 5076] close(3 [pid 5538] <... write resumed>) = 1 [pid 5538] write(3, "\x32\x00", 2 [pid 5076] <... close resumed>) = 0 [pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5540 attached [pid 5540] chdir("./76") = 0 [pid 5538] <... write resumed>) = 2 [pid 5076] rmdir("./74" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5539] <... openat resumed>) = 3 [pid 5538] exit_group(0 [pid 5540] <... prctl resumed>) = 0 [pid 5540] setpgid(0, 0 [pid 5538] <... exit_group resumed>) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5540] <... setpgid resumed>) = 0 [pid 5076] mkdir("./75", 0777 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... openat resumed>) = 3 [pid 5540] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] fstat(3, [pid 5540] write(3, "1000", 4 [pid 5539] write(3, "1000", 4 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5540] <... write resumed>) = 4 [pid 5539] <... write resumed>) = 4 [pid 5538] +++ exited with 0 +++ [pid 5540] close(3) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5540] symlink("/dev/binderfs", "./binderfs" [pid 5539] close(3 [pid 5080] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5540] <... symlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5542 [pid 5540] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5539] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5541] chdir("./80" [pid 5540] <... madvise resumed>) = 0 [pid 5539] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5075] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5542 attached [pid 5540] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] chdir("./75" [pid 5541] <... chdir resumed>) = 0 [pid 5540] <... openat resumed>) = 3 [pid 5539] <... symlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] lstat("./71/binderfs", [pid 5542] <... chdir resumed>) = 0 [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5540] write(3, "1", 1 [pid 5539] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] getdents64(3, [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5541] <... prctl resumed>) = 0 [pid 5540] <... write resumed>) = 1 [pid 5539] <... madvise resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5542] <... prctl resumed>) = 0 [pid 5541] setpgid(0, 0 [pid 5540] write(3, "\x32\x00", 2 [pid 5539] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./71/binderfs" [pid 5542] setpgid(0, 0 [pid 5541] <... setpgid resumed>) = 0 [pid 5540] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] <... setpgid resumed>) = 0 [pid 5540] exit_group(0 [pid 5080] lstat("./78/binderfs", [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5540] <... exit_group resumed>) = ? [pid 5539] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... unlink resumed>) = 0 [pid 5542] <... openat resumed>) = 3 [pid 5540] +++ exited with 0 +++ [pid 5539] write(3, "1", 1 [pid 5080] unlink("./78/binderfs" [pid 5542] write(3, "1000", 4 [pid 5541] <... openat resumed>) = 3 [pid 5539] <... write resumed>) = 1 [pid 5080] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5542] <... write resumed>) = 4 [pid 5541] write(3, "1000", 4 [pid 5539] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5542] close(3 [pid 5541] <... write resumed>) = 4 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... close resumed>) = 0 [pid 5080] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5542] <... symlink resumed>) = 0 [pid 5541] close(3 [pid 5539] <... write resumed>) = 2 [pid 5080] rmdir("./78" [pid 5079] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5542] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5541] <... close resumed>) = 0 [pid 5539] exit_group(0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5542] <... madvise resumed>) = 0 [pid 5541] symlink("/dev/binderfs", "./binderfs" [pid 5539] <... exit_group resumed>) = ? [pid 5080] mkdir("./79", 0777 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./71" [pid 5542] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5541] <... symlink resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5542] <... openat resumed>) = 3 [pid 5539] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5542] write(3, "1", 1 [pid 5541] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... rmdir resumed>) = 0 [pid 5542] <... write resumed>) = 1 [pid 5541] <... madvise resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5543 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./72", 0777 [pid 5542] write(3, "\x32\x00", 2 [pid 5541] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] lstat("./76/binderfs", ./strace-static-x86_64: Process 5543 attached [pid 5542] <... write resumed>) = 2 [pid 5541] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5542] exit_group(0 [pid 5541] write(3, "1", 1 [pid 5079] unlink("./76/binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5543] chdir("./79" [pid 5542] <... exit_group resumed>) = ? [pid 5541] <... write resumed>) = 1 [pid 5079] <... unlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5543] <... chdir resumed>) = 0 [pid 5542] +++ exited with 0 +++ [pid 5541] write(3, "\x32\x00", 2 [pid 5079] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5079] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5079] rmdir("./76" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5541] <... write resumed>) = 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5544 [pid 5541] exit_group(0 [pid 5079] mkdir("./77", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5541] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5077] lstat("./76/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5544 attached [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5544] chdir("./72" [pid 5543] <... prctl resumed>) = 0 [pid 5541] +++ exited with 0 +++ [pid 5077] unlink("./76/binderfs" [pid 5544] <... chdir resumed>) = 0 [pid 5543] setpgid(0, 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5541, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5545 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] getdents64(3, [pid 5543] <... setpgid resumed>) = 0 [pid 5076] fstat(3, [pid 5544] <... prctl resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5544] setpgid(0, 0 [pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] close(3 [pid 5544] <... setpgid resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5545 attached [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5543] <... openat resumed>) = 3 [pid 5077] rmdir("./76" [pid 5076] getdents64(3, [pid 5545] chdir("./77" [pid 5544] <... openat resumed>) = 3 [pid 5543] write(3, "1000", 4 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5544] write(3, "1000", 4 [pid 5543] <... write resumed>) = 4 [pid 5081] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./77", 0777 [pid 5545] <... chdir resumed>) = 0 [pid 5544] <... write resumed>) = 4 [pid 5543] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... mkdir resumed>) = 0 [pid 5076] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] close(3 [pid 5543] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... close resumed>) = 0 [pid 5543] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5544] symlink("/dev/binderfs", "./binderfs" [pid 5081] fstat(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5546 ./strace-static-x86_64: Process 5546 attached [pid 5545] setpgid(0, 0 [pid 5544] <... symlink resumed>) = 0 [pid 5543] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] lstat("./75/binderfs", [pid 5545] <... setpgid resumed>) = 0 [pid 5544] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5543] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5544] <... madvise resumed>) = 0 [pid 5543] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] unlink("./75/binderfs" [pid 5545] <... openat resumed>) = 3 [pid 5544] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5543] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5545] write(3, "1000", 4 [pid 5544] <... openat resumed>) = 3 [pid 5543] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5545] <... write resumed>) = 4 [pid 5544] write(3, "1", 1 [pid 5543] write(3, "1", 1 [pid 5081] lstat("./80/binderfs", [pid 5076] getdents64(3, [pid 5546] chdir("./77" [pid 5545] close(3 [pid 5544] <... write resumed>) = 1 [pid 5543] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5545] <... close resumed>) = 0 [pid 5544] write(3, "\x32\x00", 2 [pid 5543] write(3, "\x32\x00", 2 [pid 5081] unlink("./80/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5546] <... chdir resumed>) = 0 [pid 5545] symlink("/dev/binderfs", "./binderfs" [pid 5544] <... write resumed>) = 2 [pid 5543] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5076] close(3 [pid 5545] <... symlink resumed>) = 0 [pid 5544] exit_group(0 [pid 5081] getdents64(3, [pid 5543] exit_group(0 [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5544] <... exit_group resumed>) = ? [pid 5543] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5546] <... prctl resumed>) = 0 [pid 5545] <... madvise resumed>) = 0 [pid 5544] +++ exited with 0 +++ [pid 5081] close(3) = 0 [pid 5081] rmdir("./80" [pid 5546] setpgid(0, 0 [pid 5545] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5543] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5076] rmdir("./75" [pid 5546] <... setpgid resumed>) = 0 [pid 5545] <... openat resumed>) = 3 [pid 5081] mkdir("./81", 0777 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5545] write(3, "1", 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5545] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5547 attached [pid 5546] <... openat resumed>) = 3 [pid 5545] write(3, "\x32\x00", 2 [pid 5080] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./76", 0777 [pid 5546] write(3, "1000", 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5547 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... restart_syscall resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5545] <... write resumed>) = 2 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5546] <... write resumed>) = 4 [pid 5080] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5546] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5546] <... close resumed>) = 0 [pid 5545] exit_group(0 [pid 5080] lstat("./79/binderfs", [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5546] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./79/binderfs") = 0 [pid 5080] getdents64(3, [pid 5546] <... symlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5548 [pid 5545] <... exit_group resumed>) = ? [pid 5075] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5546] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5548 attached [pid 5546] <... madvise resumed>) = 0 [pid 5080] rmdir("./79" [pid 5548] chdir("./76" [pid 5546] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5545] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5548] <... chdir resumed>) = 0 [pid 5546] <... openat resumed>) = 3 [pid 5080] mkdir("./80", 0777 [pid 5075] fstat(3, [pid 5548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5547] chdir("./81" [pid 5546] write(3, "1", 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5548] <... prctl resumed>) = 0 [pid 5547] <... chdir resumed>) = 0 [pid 5546] <... write resumed>) = 1 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5549 attached [pid 5548] setpgid(0, 0 [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5546] write(3, "\x32\x00", 2 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5548] <... setpgid resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5549 [pid 5548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5547] <... prctl resumed>) = 0 [pid 5546] <... write resumed>) = 2 [pid 5079] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5548] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5548] <... write resumed>) = 4 [pid 5547] setpgid(0, 0 [pid 5546] exit_group(0 [pid 5079] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5548] close(3 [pid 5547] <... setpgid resumed>) = 0 [pid 5546] <... exit_group resumed>) = ? [pid 5079] <... openat resumed>) = 3 [pid 5075] lstat("./72/binderfs", [pid 5548] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5548] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5548] <... symlink resumed>) = 0 [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(3, [pid 5075] unlink("./72/binderfs" [pid 5548] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5546] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5548] <... madvise resumed>) = 0 [pid 5547] <... openat resumed>) = 3 [pid 5079] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5548] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5547] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] getdents64(3, [pid 5549] chdir("./80" [pid 5548] <... openat resumed>) = 3 [pid 5547] <... write resumed>) = 4 [pid 5079] lstat("./77/binderfs", [pid 5077] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5549] <... chdir resumed>) = 0 [pid 5548] write(3, "1", 1 [pid 5547] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5548] <... write resumed>) = 1 [pid 5547] <... close resumed>) = 0 [pid 5079] unlink("./77/binderfs" [pid 5077] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5549] <... prctl resumed>) = 0 [pid 5548] write(3, "\x32\x00", 2 [pid 5547] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] rmdir("./72" [pid 5549] setpgid(0, 0 [pid 5548] <... write resumed>) = 2 [pid 5547] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] fstat(3, [pid 5549] <... setpgid resumed>) = 0 [pid 5548] exit_group(0 [pid 5547] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5548] <... exit_group resumed>) = ? [pid 5547] <... madvise resumed>) = 0 [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5075] mkdir("./73", 0777 [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5548] +++ exited with 0 +++ [pid 5547] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] rmdir("./77" [pid 5077] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5549] <... openat resumed>) = 3 [pid 5547] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5549] write(3, "1000", 4 [pid 5547] write(3, "1", 1 [pid 5079] mkdir("./78", 0777 [pid 5077] lstat("./77/binderfs", [pid 5076] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5550 attached [pid 5549] <... write resumed>) = 4 [pid 5547] <... write resumed>) = 1 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5550] chdir("./73" [pid 5549] close(3 [pid 5547] write(3, "\x32\x00", 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./77/binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5550 ./strace-static-x86_64: Process 5551 attached [pid 5550] <... chdir resumed>) = 0 [pid 5549] <... close resumed>) = 0 [pid 5547] <... write resumed>) = 2 [pid 5077] <... unlink resumed>) = 0 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5549] symlink("/dev/binderfs", "./binderfs" [pid 5547] exit_group(0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5551 [pid 5077] getdents64(3, [pid 5551] chdir("./78" [pid 5550] <... prctl resumed>) = 0 [pid 5549] <... symlink resumed>) = 0 [pid 5547] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] setpgid(0, 0 [pid 5549] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] close(3 [pid 5551] <... chdir resumed>) = 0 [pid 5550] <... setpgid resumed>) = 0 [pid 5549] <... madvise resumed>) = 0 [pid 5547] +++ exited with 0 +++ [pid 5077] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5549] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] rmdir("./77" [pid 5076] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5551] <... prctl resumed>) = 0 [pid 5550] <... openat resumed>) = 3 [pid 5549] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... rmdir resumed>) = 0 [pid 5551] setpgid(0, 0 [pid 5550] write(3, "1000", 4 [pid 5549] write(3, "1", 1 [pid 5081] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./78", 0777 [pid 5076] <... openat resumed>) = 3 [pid 5551] <... setpgid resumed>) = 0 [pid 5550] <... write resumed>) = 4 [pid 5549] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... mkdir resumed>) = 0 [pid 5076] fstat(3, [pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5550] close(3 [pid 5549] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5550] <... close resumed>) = 0 [pid 5549] <... write resumed>) = 2 [pid 5081] <... openat resumed>) = 3 [pid 5551] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5551] write(3, "1000", 4 [pid 5550] symlink("/dev/binderfs", "./binderfs" [pid 5549] exit_group(0 [pid 5081] fstat(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5552 [pid 5076] getdents64(3, [pid 5551] <... write resumed>) = 4 [pid 5550] <... symlink resumed>) = 0 [pid 5549] <... exit_group resumed>) = ? [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5551] close(3 [pid 5550] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5552 attached [pid 5549] +++ exited with 0 +++ [pid 5551] <... close resumed>) = 0 [pid 5550] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] chdir("./78" [pid 5551] symlink("/dev/binderfs", "./binderfs" [pid 5550] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] <... chdir resumed>) = 0 [pid 5551] <... symlink resumed>) = 0 [pid 5550] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5551] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5550] write(3, "1", 1 [pid 5081] lstat("./81/binderfs", [pid 5080] <... restart_syscall resumed>) = 0 [pid 5076] lstat("./76/binderfs", [pid 5552] <... prctl resumed>) = 0 [pid 5551] <... madvise resumed>) = 0 [pid 5550] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5552] setpgid(0, 0 [pid 5081] unlink("./81/binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5552] <... setpgid resumed>) = 0 [pid 5551] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5550] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./76/binderfs" [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5551] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5552] write(3, "1000", 4 [pid 5081] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5552] <... write resumed>) = 4 [pid 5551] write(3, "1", 1 [pid 5550] <... write resumed>) = 2 [pid 5081] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5552] close(3 [pid 5551] <... write resumed>) = 1 [pid 5550] exit_group(0 [pid 5081] rmdir("./81" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5552] <... close resumed>) = 0 [pid 5551] write(3, "\x32\x00", 2 [pid 5550] <... exit_group resumed>) = ? [pid 5081] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5076] close(3 [pid 5552] symlink("/dev/binderfs", "./binderfs" [pid 5081] mkdir("./82", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5552] <... symlink resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5551] <... write resumed>) = 2 [pid 5552] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./76"./strace-static-x86_64: Process 5553 attached [pid 5552] <... madvise resumed>) = 0 [pid 5551] exit_group(0 [pid 5550] +++ exited with 0 +++ [pid 5080] lstat("./80/binderfs", [pid 5553] chdir("./82" [pid 5552] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5551] <... exit_group resumed>) = ? [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5553 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5553] <... chdir resumed>) = 0 [pid 5552] <... openat resumed>) = 3 [pid 5080] unlink("./80/binderfs" [pid 5076] mkdir("./77", 0777 [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5552] write(3, "1", 1 [pid 5551] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5552] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5553] <... prctl resumed>) = 0 [pid 5552] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5553] setpgid(0, 0 [pid 5075] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] <... write resumed>) = 2 [pid 5080] close(3 [pid 5079] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5554 attached [pid 5553] <... setpgid resumed>) = 0 [pid 5552] exit_group(0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5552] <... exit_group resumed>) = ? [pid 5080] rmdir("./80" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5554 [pid 5075] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5554] chdir("./77" [pid 5553] <... openat resumed>) = 3 [pid 5552] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5554] <... chdir resumed>) = 0 [pid 5553] write(3, "1000", 4 [pid 5080] mkdir("./81", 0777 [pid 5079] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5553] <... write resumed>) = 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5552, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] fstat(3, [pid 5554] <... prctl resumed>) = 0 [pid 5553] close(3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5555 attached [pid 5554] setpgid(0, 0 [pid 5553] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5555] chdir("./81" [pid 5554] <... setpgid resumed>) = 0 [pid 5553] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5555 [pid 5079] fstat(3, [pid 5075] getdents64(3, [pid 5555] <... chdir resumed>) = 0 [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5553] <... symlink resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5554] <... openat resumed>) = 3 [pid 5553] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] getdents64(3, [pid 5077] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5555] <... prctl resumed>) = 0 [pid 5554] write(3, "1000", 4 [pid 5553] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] setpgid(0, 0 [pid 5554] <... write resumed>) = 4 [pid 5553] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] <... setpgid resumed>) = 0 [pid 5554] close(3 [pid 5553] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5554] <... close resumed>) = 0 [pid 5553] write(3, "1", 1 [pid 5079] lstat("./78/binderfs", [pid 5077] fstat(3, [pid 5075] lstat("./73/binderfs", [pid 5555] <... openat resumed>) = 3 [pid 5554] symlink("/dev/binderfs", "./binderfs" [pid 5553] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5555] write(3, "1000", 4 [pid 5554] <... symlink resumed>) = 0 [pid 5553] write(3, "\x32\x00", 2 [pid 5079] unlink("./78/binderfs" [pid 5077] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5555] <... write resumed>) = 4 [pid 5554] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] unlink("./73/binderfs" [pid 5555] close(3 [pid 5554] <... madvise resumed>) = 0 [pid 5553] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5077] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... close resumed>) = 0 [pid 5554] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5553] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... unlink resumed>) = 0 [pid 5555] symlink("/dev/binderfs", "./binderfs" [pid 5554] <... openat resumed>) = 3 [pid 5553] <... exit_group resumed>) = ? [pid 5079] close(3 [pid 5077] lstat("./78/binderfs", [pid 5554] write(3, "1", 1 [pid 5079] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5555] <... symlink resumed>) = 0 [pid 5554] <... write resumed>) = 1 [pid 5553] +++ exited with 0 +++ [pid 5079] rmdir("./78" [pid 5077] unlink("./78/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5555] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5554] write(3, "\x32\x00", 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] mkdir("./79", 0777 [pid 5077] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5555] <... madvise resumed>) = 0 [pid 5554] <... write resumed>) = 2 [pid 5081] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./73" [pid 5555] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5554] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3./strace-static-x86_64: Process 5556 attached [pid 5555] <... openat resumed>) = 3 [pid 5554] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5555] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5556 [pid 5077] rmdir("./78" [pid 5075] mkdir("./74", 0777 [pid 5556] chdir("./79" [pid 5555] <... write resumed>) = 1 [pid 5554] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5556] <... chdir resumed>) = 0 [pid 5555] write(3, "\x32\x00", 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./79", 0777 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... mkdir resumed>) = 0 [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5556] <... prctl resumed>) = 0 [pid 5555] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5558 attached ./strace-static-x86_64: Process 5557 attached [pid 5556] setpgid(0, 0 [pid 5555] exit_group(0 [pid 5081] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] chdir("./74" [pid 5556] <... setpgid resumed>) = 0 [pid 5555] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5558 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5557 [pid 5558] chdir("./79" [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] lstat("./82/binderfs", [pid 5555] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5557] <... chdir resumed>) = 0 [pid 5556] <... openat resumed>) = 3 [pid 5081] unlink("./82/binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5555, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5558] <... chdir resumed>) = 0 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] write(3, "1000", 4 [pid 5081] <... unlink resumed>) = 0 [pid 5076] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5558] <... prctl resumed>) = 0 [pid 5557] <... prctl resumed>) = 0 [pid 5556] <... write resumed>) = 4 [pid 5081] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5558] setpgid(0, 0 [pid 5557] setpgid(0, 0 [pid 5556] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5558] <... setpgid resumed>) = 0 [pid 5557] <... setpgid resumed>) = 0 [pid 5556] <... close resumed>) = 0 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5558] <... openat resumed>) = 3 [pid 5557] <... openat resumed>) = 3 [pid 5556] <... symlink resumed>) = 0 [pid 5081] rmdir("./82" [pid 5080] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5558] write(3, "1000", 4 [pid 5557] write(3, "1000", 4 [pid 5556] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... rmdir resumed>) = 0 [pid 5080] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5558] <... write resumed>) = 4 [pid 5557] <... write resumed>) = 4 [pid 5556] <... madvise resumed>) = 0 [pid 5081] mkdir("./83", 0777 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5558] close(3 [pid 5557] close(3 [pid 5556] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5558] <... close resumed>) = 0 [pid 5557] <... close resumed>) = 0 [pid 5556] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5559 attached [pid 5558] symlink("/dev/binderfs", "./binderfs" [pid 5557] symlink("/dev/binderfs", "./binderfs" [pid 5556] write(3, "1", 1 [pid 5080] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] chdir("./83" [pid 5558] <... symlink resumed>) = 0 [pid 5557] <... symlink resumed>) = 0 [pid 5556] <... write resumed>) = 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5559 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] <... chdir resumed>) = 0 [pid 5558] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5557] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5556] write(3, "\x32\x00", 2 [pid 5080] lstat("./81/binderfs", [pid 5076] lstat("./77/binderfs", [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... madvise resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./81/binderfs") = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5558] <... madvise resumed>) = 0 [pid 5557] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] getdents64(3, [pid 5076] unlink("./77/binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5558] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5557] <... openat resumed>) = 3 [pid 5080] rmdir("./81" [pid 5076] getdents64(3, [pid 5559] <... prctl resumed>) = 0 [pid 5558] <... openat resumed>) = 3 [pid 5557] write(3, "1", 1 [pid 5556] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5559] setpgid(0, 0 [pid 5558] write(3, "1", 1 [pid 5557] <... write resumed>) = 1 [pid 5556] exit_group(0 [pid 5080] mkdir("./82", 0777 [pid 5559] <... setpgid resumed>) = 0 [pid 5558] <... write resumed>) = 1 [pid 5557] write(3, "\x32\x00", 2 [pid 5556] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5558] write(3, "\x32\x00", 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./77" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5560 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] mkdir("./78", 0777 [pid 5556] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5556, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5560 attached [pid 5560] chdir("./82" [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5560] <... chdir resumed>) = 0 [pid 5558] <... write resumed>) = 2 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5561 ./strace-static-x86_64: Process 5561 attached [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5559] <... openat resumed>) = 3 [pid 5558] exit_group(0 [pid 5557] <... write resumed>) = 2 [pid 5079] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] chdir("./78" [pid 5560] <... prctl resumed>) = 0 [pid 5559] write(3, "1000", 4 [pid 5558] <... exit_group resumed>) = ? [pid 5557] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5560] setpgid(0, 0 [pid 5559] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] <... chdir resumed>) = 0 [pid 5560] <... setpgid resumed>) = 0 [pid 5559] close(3 [pid 5558] +++ exited with 0 +++ [pid 5557] <... exit_group resumed>) = ? [pid 5079] <... openat resumed>) = 3 [pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5559] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5561] <... prctl resumed>) = 0 [pid 5560] <... openat resumed>) = 3 [pid 5559] symlink("/dev/binderfs", "./binderfs" [pid 5557] +++ exited with 0 +++ [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5561] setpgid(0, 0 [pid 5560] write(3, "1000", 4 [pid 5559] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5561] <... setpgid resumed>) = 0 [pid 5560] <... write resumed>) = 4 [pid 5559] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5560] close(3 [pid 5559] <... madvise resumed>) = 0 [pid 5079] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... openat resumed>) = 3 [pid 5560] <... close resumed>) = 0 [pid 5559] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] write(3, "1000", 4 [pid 5560] symlink("/dev/binderfs", "./binderfs" [pid 5559] <... openat resumed>) = 3 [pid 5079] lstat("./79/binderfs", [pid 5077] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... write resumed>) = 4 [pid 5560] <... symlink resumed>) = 0 [pid 5559] write(3, "1", 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] close(3 [pid 5560] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5559] <... write resumed>) = 1 [pid 5079] unlink("./79/binderfs" [pid 5077] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] <... close resumed>) = 0 [pid 5560] <... madvise resumed>) = 0 [pid 5559] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5561] symlink("/dev/binderfs", "./binderfs" [pid 5560] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] getdents64(3, [pid 5077] fstat(3, [pid 5560] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5560] write(3, "1", 1 [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... symlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5560] <... write resumed>) = 1 [pid 5559] <... write resumed>) = 2 [pid 5079] rmdir("./79" [pid 5077] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5561] <... madvise resumed>) = 0 [pid 5560] write(3, "\x32\x00", 2 [pid 5559] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5561] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5559] <... exit_group resumed>) = ? [pid 5075] fstat(3, [pid 5561] <... openat resumed>) = 3 [pid 5559] +++ exited with 0 +++ [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5561] write(3, "1", 1 [pid 5075] getdents64(3, [pid 5561] <... write resumed>) = 1 [pid 5560] <... write resumed>) = 2 [pid 5079] mkdir("./80", 0777 [pid 5077] lstat("./79/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5561] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5559, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5560] exit_group(0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5561] <... write resumed>) = 2 [pid 5560] <... exit_group resumed>) = ? [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./79/binderfs" [pid 5075] lstat("./74/binderfs", ./strace-static-x86_64: Process 5562 attached [pid 5561] exit_group(0 [pid 5560] +++ exited with 0 +++ [pid 5077] <... unlink resumed>) = 0 [pid 5562] chdir("./80" [pid 5561] <... exit_group resumed>) = ? [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5562 [pid 5077] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] unlink("./74/binderfs" [pid 5562] <... chdir resumed>) = 0 [pid 5561] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5562] <... prctl resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./79" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] getdents64(3, [pid 5562] setpgid(0, 0 [pid 5081] fstat(3, [pid 5080] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5562] <... setpgid resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] fstat(3, [pid 5077] mkdir("./80", 0777 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] close(3 [pid 5562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5562] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5563 attached [pid 5562] write(3, "1000", 4 [pid 5081] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] rmdir("./74" [pid 5563] chdir("./80" [pid 5562] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5563 [pid 5076] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] <... chdir resumed>) = 0 [pid 5562] close(3 [pid 5081] lstat("./83/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5562] <... close resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] lstat("./82/binderfs", [pid 5076] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./75", 0777 [pid 5563] <... prctl resumed>) = 0 [pid 5562] symlink("/dev/binderfs", "./binderfs" [pid 5081] unlink("./83/binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5563] setpgid(0, 0 [pid 5562] <... symlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] unlink("./82/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5563] <... setpgid resumed>) = 0 [pid 5562] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5080] <... unlink resumed>) = 0 [pid 5076] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5562] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] close(3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5564 attached [pid 5563] <... openat resumed>) = 3 [pid 5562] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... close resumed>) = 0 [pid 5080] close(3 [pid 5564] chdir("./75" [pid 5563] write(3, "1000", 4 [pid 5562] <... openat resumed>) = 3 [pid 5081] rmdir("./83" [pid 5080] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5564 [pid 5564] <... chdir resumed>) = 0 [pid 5563] <... write resumed>) = 4 [pid 5562] write(3, "1", 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./82" [pid 5076] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] close(3 [pid 5562] <... write resumed>) = 1 [pid 5081] mkdir("./84", 0777 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5564] <... prctl resumed>) = 0 [pid 5563] <... close resumed>) = 0 [pid 5562] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] mkdir("./83", 0777 [pid 5076] lstat("./78/binderfs", [pid 5564] setpgid(0, 0 [pid 5563] symlink("/dev/binderfs", "./binderfs" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5565 attached [pid 5564] <... setpgid resumed>) = 0 [pid 5563] <... symlink resumed>) = 0 [pid 5562] <... write resumed>) = 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5566 attached [pid 5565] chdir("./84" [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5563] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5562] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5565 [pid 5076] unlink("./78/binderfs" [pid 5565] <... chdir resumed>) = 0 [pid 5564] <... openat resumed>) = 3 [pid 5563] <... madvise resumed>) = 0 [pid 5562] <... exit_group resumed>) = ? [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5566 [pid 5076] <... unlink resumed>) = 0 [pid 5562] +++ exited with 0 +++ [pid 5564] write(3, "1000", 4 [pid 5563] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] getdents64(3, [pid 5566] chdir("./83" [pid 5565] <... prctl resumed>) = 0 [pid 5564] <... write resumed>) = 4 [pid 5563] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5566] <... chdir resumed>) = 0 [pid 5565] setpgid(0, 0 [pid 5564] close(3 [pid 5563] write(3, "1", 1 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] close(3 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5565] <... setpgid resumed>) = 0 [pid 5564] <... close resumed>) = 0 [pid 5563] <... write resumed>) = 1 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5566] <... prctl resumed>) = 0 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5564] symlink("/dev/binderfs", "./binderfs" [pid 5563] write(3, "\x32\x00", 2 [pid 5076] <... close resumed>) = 0 [pid 5566] setpgid(0, 0 [pid 5564] <... symlink resumed>) = 0 [pid 5079] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5566] <... setpgid resumed>) = 0 [pid 5565] <... openat resumed>) = 3 [pid 5564] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5563] <... write resumed>) = 2 [pid 5079] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] rmdir("./78" [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5565] write(3, "1000", 4 [pid 5564] <... madvise resumed>) = 0 [pid 5563] exit_group(0 [pid 5079] <... openat resumed>) = 3 [pid 5565] <... write resumed>) = 4 [pid 5564] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5563] <... exit_group resumed>) = ? [pid 5566] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5565] close(3 [pid 5564] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] mkdir("./79", 0777 [pid 5566] write(3, "1000", 4 [pid 5565] <... close resumed>) = 0 [pid 5564] write(3, "1", 1 [pid 5563] +++ exited with 0 +++ [pid 5079] getdents64(3, [pid 5566] <... write resumed>) = 4 [pid 5565] symlink("/dev/binderfs", "./binderfs" [pid 5564] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5563, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... mkdir resumed>) = 0 [pid 5566] close(3 [pid 5565] <... symlink resumed>) = 0 [pid 5564] write(3, "\x32\x00", 2 [pid 5079] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5566] <... close resumed>) = 0 [pid 5565] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5566] symlink("/dev/binderfs", "./binderfs" [pid 5565] <... madvise resumed>) = 0 [pid 5564] <... write resumed>) = 2 [pid 5079] lstat("./80/binderfs", [pid 5565] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5564] exit_group(0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5566] <... symlink resumed>) = 0 [pid 5565] <... openat resumed>) = 3 [pid 5564] <... exit_group resumed>) = ? [pid 5079] unlink("./80/binderfs" [pid 5077] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5567 [pid 5566] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5565] write(3, "1", 1 [pid 5564] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] <... madvise resumed>) = 0 [pid 5565] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5566] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5565] write(3, "\x32\x00", 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5567 attached [pid 5079] close(3 [pid 5077] fstat(3, [pid 5567] chdir("./79" [pid 5079] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5567] <... chdir resumed>) = 0 [pid 5566] <... openat resumed>) = 3 [pid 5565] <... write resumed>) = 2 [pid 5079] rmdir("./80" [pid 5077] getdents64(3, [pid 5075] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5566] write(3, "1", 1 [pid 5565] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] <... prctl resumed>) = 0 [pid 5566] <... write resumed>) = 1 [pid 5565] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5567] setpgid(0, 0 [pid 5566] write(3, "\x32\x00", 2 [pid 5565] +++ exited with 0 +++ [pid 5079] mkdir("./81", 0777 [pid 5077] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5567] <... setpgid resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5566] <... write resumed>) = 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] lstat("./80/binderfs", [pid 5567] <... openat resumed>) = 3 [pid 5566] exit_group(0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5567] write(3, "1000", 4 [pid 5566] <... exit_group resumed>) = ? [pid 5081] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5568 attached [pid 5567] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5568 [pid 5077] unlink("./80/binderfs" [pid 5568] chdir("./81" [pid 5567] close(3 [pid 5566] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5568] <... chdir resumed>) = 0 [pid 5567] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5567] symlink("/dev/binderfs", "./binderfs" [pid 5081] fstat(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5566, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5568] <... prctl resumed>) = 0 [pid 5567] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5075] lstat("./75/binderfs", [pid 5568] setpgid(0, 0 [pid 5567] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5568] <... setpgid resumed>) = 0 [pid 5567] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./80" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5567] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] unlink("./75/binderfs" [pid 5568] <... openat resumed>) = 3 [pid 5567] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5077] mkdir("./81", 0777 [pid 5568] write(3, "1000", 4 [pid 5567] write(3, "1", 1 [pid 5081] lstat("./84/binderfs", [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5568] <... write resumed>) = 4 [pid 5567] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5569 attached [pid 5568] close(3 [pid 5567] write(3, "\x32\x00", 2 [pid 5081] unlink("./84/binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5569] chdir("./81" [pid 5568] <... close resumed>) = 0 [pid 5567] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5569 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5568] symlink("/dev/binderfs", "./binderfs" [pid 5567] exit_group(0 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5568] <... symlink resumed>) = 0 [pid 5567] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] lstat("./83/binderfs", [pid 5569] <... chdir resumed>) = 0 [pid 5568] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5567] +++ exited with 0 +++ [pid 5081] close(3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5568] <... madvise resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] unlink("./83/binderfs" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] rmdir("./75" [pid 5569] <... prctl resumed>) = 0 [pid 5568] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] rmdir("./84" [pid 5080] <... unlink resumed>) = 0 [pid 5569] setpgid(0, 0 [pid 5568] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5569] <... setpgid resumed>) = 0 [pid 5568] write(3, "1", 1 [pid 5081] mkdir("./85", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./76", 0777 [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] <... write resumed>) = 1 [pid 5080] close(3 [pid 5568] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5076] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] <... openat resumed>) = 3 [pid 5568] <... write resumed>) = 2 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] rmdir("./83" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5568] exit_group(0 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5569] write(3, "1000", 4 [pid 5568] <... exit_group resumed>) = ? [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5570 [pid 5080] mkdir("./84", 0777./strace-static-x86_64: Process 5571 attached [pid 5569] <... write resumed>) = 4 [pid 5568] +++ exited with 0 +++ [pid 5080] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5569] close(3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5568, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] fstat(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5571 [pid 5569] <... close resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5570 attached [pid 5569] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5572 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] getdents64(3, [pid 5570] chdir("./85" [pid 5569] <... symlink resumed>) = 0 [pid 5570] <... chdir resumed>) = 0 [pid 5569] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5569] <... madvise resumed>) = 0 [pid 5570] <... prctl resumed>) = 0 [pid 5076] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5569] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5570] setpgid(0, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5570] <... setpgid resumed>) = 0 [pid 5569] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5569] write(3, "1", 1 [pid 5076] lstat("./79/binderfs", [pid 5571] chdir("./76" [pid 5570] <... openat resumed>) = 3 [pid 5569] <... write resumed>) = 1 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5571] <... chdir resumed>) = 0 [pid 5570] write(3, "1000", 4 [pid 5569] write(3, "\x32\x00", 2 [pid 5079] fstat(3, [pid 5076] unlink("./79/binderfs" [pid 5570] <... write resumed>) = 4 [pid 5570] close(3) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5570] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5570] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5570] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5570] <... madvise resumed>) = 0 [pid 5079] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5570] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5570] <... openat resumed>) = 3 [pid 5569] <... write resumed>) = 2 [pid 5079] lstat("./81/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5570] write(3, "1", 1./strace-static-x86_64: Process 5572 attached [pid 5571] <... prctl resumed>) = 0 [pid 5570] <... write resumed>) = 1 [pid 5569] exit_group(0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./79" [pid 5572] chdir("./84" [pid 5571] setpgid(0, 0 [pid 5570] write(3, "\x32\x00", 2 [pid 5569] <... exit_group resumed>) = ? [pid 5079] unlink("./81/binderfs" [pid 5572] <... chdir resumed>) = 0 [pid 5571] <... setpgid resumed>) = 0 [pid 5570] <... write resumed>) = 2 [pid 5076] <... rmdir resumed>) = 0 [pid 5570] exit_group(0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] mkdir("./80", 0777 [pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5570] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5571] <... openat resumed>) = 3 [pid 5570] +++ exited with 0 +++ [pid 5569] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5572] <... prctl resumed>) = 0 [pid 5571] write(3, "1000", 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] setpgid(0, 0 [pid 5571] <... write resumed>) = 4 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5573 attached [pid 5571] close(3 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5079] rmdir("./81" [pid 5571] <... close resumed>) = 0 [pid 5572] <... setpgid resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5571] symlink("/dev/binderfs", "./binderfs" [pid 5079] mkdir("./82", 0777 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5573 [pid 5081] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5571] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5572] <... openat resumed>) = 3 [pid 5571] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] write(3, "1000", 4 [pid 5571] <... madvise resumed>) = 0 [pid 5081] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5574 attached [pid 5572] <... write resumed>) = 4 [pid 5571] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] fstat(3, [pid 5077] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] chdir("./82" [pid 5572] close(3 [pid 5571] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5574 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] <... chdir resumed>) = 0 [pid 5572] <... close resumed>) = 0 [pid 5571] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5077] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] symlink("/dev/binderfs", "./binderfs" [pid 5571] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... openat resumed>) = 3 [pid 5574] <... prctl resumed>) = 0 [pid 5572] <... symlink resumed>) = 0 [pid 5571] write(3, "\x32\x00", 2 [pid 5081] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5574] setpgid(0, 0 [pid 5573] chdir("./80" [pid 5572] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5574] <... setpgid resumed>) = 0 [pid 5573] <... chdir resumed>) = 0 [pid 5572] <... madvise resumed>) = 0 [pid 5571] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5571] exit_group(0 [pid 5081] lstat("./85/binderfs", [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5574] <... openat resumed>) = 3 [pid 5573] <... prctl resumed>) = 0 [pid 5572] <... openat resumed>) = 3 [pid 5571] <... exit_group resumed>) = ? [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] write(3, "1000", 4 [pid 5573] setpgid(0, 0 [pid 5572] write(3, "1", 1 [pid 5081] unlink("./85/binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] <... write resumed>) = 4 [pid 5573] <... setpgid resumed>) = 0 [pid 5572] <... write resumed>) = 1 [pid 5571] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5077] lstat("./81/binderfs", [pid 5574] close(3 [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5574] <... close resumed>) = 0 [pid 5573] <... openat resumed>) = 3 [pid 5572] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] unlink("./81/binderfs" [pid 5574] symlink("/dev/binderfs", "./binderfs" [pid 5573] write(3, "1000", 4 [pid 5572] exit_group(0 [pid 5081] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5573] <... write resumed>) = 4 [pid 5572] <... exit_group resumed>) = ? [pid 5077] getdents64(3, [pid 5075] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] <... symlink resumed>) = 0 [pid 5573] close(3 [pid 5572] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5573] <... close resumed>) = 0 [pid 5081] rmdir("./85" [pid 5077] close(3 [pid 5075] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5573] symlink("/dev/binderfs", "./binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5574] <... madvise resumed>) = 0 [pid 5573] <... symlink resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5077] rmdir("./81" [pid 5075] fstat(3, [pid 5574] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5573] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] mkdir("./86", 0777 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5574] <... openat resumed>) = 3 [pid 5573] <... madvise resumed>) = 0 [pid 5077] mkdir("./82", 0777 [pid 5075] getdents64(3, [pid 5574] write(3, "1", 1 [pid 5573] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5574] <... write resumed>) = 1 [pid 5573] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5574] write(3, "\x32\x00", 2 [pid 5573] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5574] <... write resumed>) = 2 [pid 5573] <... write resumed>) = 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5575 [pid 5080] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5576 [pid 5075] lstat("./76/binderfs", [pid 5574] exit_group(0 [pid 5573] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5574] <... exit_group resumed>) = ? [pid 5573] <... write resumed>) = 2 [pid 5080] fstat(3, [pid 5075] unlink("./76/binderfs" [pid 5573] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5575 attached [pid 5574] +++ exited with 0 +++ [pid 5573] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5075] getdents64(3, [pid 5575] chdir("./86" [pid 5573] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5576 attached [pid 5575] <... chdir resumed>) = 0 [pid 5080] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] close(3 [pid 5576] chdir("./82" [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5576] <... chdir resumed>) = 0 [pid 5575] <... prctl resumed>) = 0 [pid 5080] lstat("./84/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... close resumed>) = 0 [pid 5576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5575] setpgid(0, 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] rmdir("./76" [pid 5576] <... prctl resumed>) = 0 [pid 5575] <... setpgid resumed>) = 0 [pid 5080] unlink("./84/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5576] setpgid(0, 0 [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... unlink resumed>) = 0 [pid 5075] mkdir("./77", 0777 [pid 5576] <... setpgid resumed>) = 0 [pid 5575] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] write(3, "1000", 4 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5577 attached [pid 5576] <... openat resumed>) = 3 [pid 5575] <... write resumed>) = 4 [pid 5080] close(3 [pid 5079] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5576] write(3, "1000", 4 [pid 5575] close(3 [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5577 [pid 5576] <... write resumed>) = 4 [pid 5575] <... close resumed>) = 0 [pid 5080] rmdir("./84" [pid 5079] fstat(3, [pid 5577] chdir("./77" [pid 5576] close(3 [pid 5575] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5577] <... chdir resumed>) = 0 [pid 5576] <... close resumed>) = 0 [pid 5575] <... symlink resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5576] symlink("/dev/binderfs", "./binderfs" [pid 5575] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] mkdir("./85", 0777 [pid 5079] getdents64(3, [pid 5577] <... prctl resumed>) = 0 [pid 5576] <... symlink resumed>) = 0 [pid 5575] <... madvise resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5575] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... mkdir resumed>) = 0 [pid 5577] setpgid(0, 0 [pid 5576] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5575] <... openat resumed>) = 3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5576] <... madvise resumed>) = 0 [pid 5575] write(3, "1", 1) = 1 [pid 5575] write(3, "\x32\x00", 2 [pid 5577] <... setpgid resumed>) = 0 [pid 5576] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5575] <... write resumed>) = 2 [pid 5079] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5576] <... openat resumed>) = 3 [pid 5575] exit_group(0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5578 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5576] write(3, "1", 1 [pid 5575] <... exit_group resumed>) = ? [pid 5079] lstat("./82/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5578 attached [pid 5577] <... openat resumed>) = 3 [pid 5576] <... write resumed>) = 1 [pid 5575] +++ exited with 0 +++ [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./80/binderfs", [pid 5578] chdir("./85" [pid 5577] write(3, "1000", 4 [pid 5576] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] unlink("./82/binderfs" [pid 5578] <... chdir resumed>) = 0 [pid 5577] <... write resumed>) = 4 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5578] setpgid(0, 0) = 0 [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5576] <... write resumed>) = 2 [pid 5578] <... openat resumed>) = 3 [pid 5577] close(3 [pid 5576] exit_group(0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] unlink("./80/binderfs" [pid 5578] write(3, "1000", 4 [pid 5577] <... close resumed>) = 0 [pid 5576] <... exit_group resumed>) = ? [pid 5081] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5578] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5578] close(3 [pid 5081] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5076] getdents64(3, [pid 5578] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5578] symlink("/dev/binderfs", "./binderfs" [pid 5081] fstat(3, [pid 5079] rmdir("./82" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5578] <... symlink resumed>) = 0 [pid 5577] symlink("/dev/binderfs", "./binderfs" [pid 5576] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5578] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5578] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5076] close(3 [pid 5578] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5577] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] mkdir("./83", 0777 [pid 5076] <... close resumed>) = 0 [pid 5578] <... openat resumed>) = 3 [pid 5577] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5578] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./80" [pid 5578] <... write resumed>) = 1 [pid 5577] <... madvise resumed>) = 0 [pid 5081] lstat("./86/binderfs", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5578] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5579 attached [pid 5578] <... write resumed>) = 2 [pid 5577] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./86/binderfs" [pid 5077] fstat(3, [pid 5076] mkdir("./81", 0777 [pid 5579] chdir("./83" [pid 5578] exit_group(0 [pid 5577] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5579 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5579] <... chdir resumed>) = 0 [pid 5578] <... exit_group resumed>) = ? [pid 5577] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5578] +++ exited with 0 +++ [pid 5577] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5579] <... prctl resumed>) = 0 [pid 5577] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5580 attached [pid 5580] chdir("./81") = 0 [pid 5577] <... write resumed>) = 2 [pid 5077] lstat("./82/binderfs", [pid 5081] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5580 [pid 5579] setpgid(0, 0 [pid 5577] exit_group(0 [pid 5081] rmdir("./86" [pid 5080] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5579] <... setpgid resumed>) = 0 [pid 5577] <... exit_group resumed>) = ? [pid 5580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./82/binderfs" [pid 5580] <... prctl resumed>) = 0 [pid 5081] mkdir("./87", 0777 [pid 5080] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5580] setpgid(0, 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5580] <... setpgid resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] fstat(3, [pid 5580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5580] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] close(3 [pid 5580] write(3, "1000", 4 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... close resumed>) = 0 [pid 5580] <... write resumed>) = 4 [pid 5577] +++ exited with 0 +++ [pid 5080] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./82" [pid 5580] close(3 [pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5581 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5581 attached [pid 5580] <... close resumed>) = 0 [pid 5579] <... openat resumed>) = 3 [pid 5080] lstat("./85/binderfs", [pid 5077] <... rmdir resumed>) = 0 [pid 5581] chdir("./87" [pid 5580] symlink("/dev/binderfs", "./binderfs" [pid 5579] write(3, "1000", 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] mkdir("./83", 0777 [pid 5581] <... chdir resumed>) = 0 [pid 5580] <... symlink resumed>) = 0 [pid 5579] <... write resumed>) = 4 [pid 5080] unlink("./85/binderfs" [pid 5075] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] <... madvise resumed>) = 0 [pid 5579] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5580] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5579] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5580] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5580] write(3, "1", 1 [pid 5579] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5582 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5580] <... write resumed>) = 1 [pid 5080] close(3 [pid 5075] getdents64(3, [pid 5580] write(3, "\x32\x00", 2 [pid 5579] <... symlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5582 attached [pid 5581] <... prctl resumed>) = 0 [pid 5580] <... write resumed>) = 2 [pid 5579] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] rmdir("./85" [pid 5075] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5582] chdir("./83" [pid 5581] setpgid(0, 0 [pid 5580] exit_group(0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5582] <... chdir resumed>) = 0 [pid 5580] <... exit_group resumed>) = ? [pid 5080] <... rmdir resumed>) = 0 [pid 5075] lstat("./77/binderfs", [pid 5582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5581] <... setpgid resumed>) = 0 [pid 5580] +++ exited with 0 +++ [pid 5579] <... madvise resumed>) = 0 [pid 5080] mkdir("./86", 0777 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5582] <... prctl resumed>) = 0 [pid 5075] unlink("./77/binderfs" [pid 5582] setpgid(0, 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5579] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5580, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... unlink resumed>) = 0 [pid 5582] <... setpgid resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5579] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5582] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5582] write(3, "1000", 4 [pid 5075] <... close resumed>) = 0 [pid 5582] <... write resumed>) = 4 [pid 5579] write(3, "1", 1 [pid 5075] rmdir("./77" [pid 5582] close(3 [pid 5581] <... openat resumed>) = 3 [pid 5579] <... write resumed>) = 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5583 [pid 5075] <... rmdir resumed>) = 0 [pid 5582] <... close resumed>) = 0 [pid 5581] write(3, "1000", 4 [pid 5579] write(3, "\x32\x00", 2 [pid 5075] mkdir("./78", 0777./strace-static-x86_64: Process 5583 attached [pid 5582] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5582] <... symlink resumed>) = 0 [pid 5076] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5584 attached [pid 5583] chdir("./86" [pid 5582] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5581] <... write resumed>) = 4 [pid 5579] <... write resumed>) = 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5584] chdir("./78" [pid 5583] <... chdir resumed>) = 0 [pid 5582] <... madvise resumed>) = 0 [pid 5581] close(3 [pid 5579] exit_group(0 [pid 5076] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5584 [pid 5584] <... chdir resumed>) = 0 [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5582] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5581] <... close resumed>) = 0 [pid 5579] <... exit_group resumed>) = ? [pid 5076] <... openat resumed>) = 3 [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] <... prctl resumed>) = 0 [pid 5582] <... openat resumed>) = 3 [pid 5581] symlink("/dev/binderfs", "./binderfs" [pid 5583] setpgid(0, 0 [pid 5582] write(3, "1", 1 [pid 5076] fstat(3, [pid 5584] <... prctl resumed>) = 0 [pid 5583] <... setpgid resumed>) = 0 [pid 5582] <... write resumed>) = 1 [pid 5581] <... symlink resumed>) = 0 [pid 5579] +++ exited with 0 +++ [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5584] setpgid(0, 0 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5582] write(3, "\x32\x00", 2 [pid 5581] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] getdents64(3, [pid 5584] <... setpgid resumed>) = 0 [pid 5583] <... openat resumed>) = 3 [pid 5582] <... write resumed>) = 2 [pid 5581] <... madvise resumed>) = 0 [pid 5583] write(3, "1000", 4 [pid 5582] exit_group(0 [pid 5581] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5583] <... write resumed>) = 4 [pid 5582] <... exit_group resumed>) = ? [pid 5581] <... openat resumed>) = 3 [pid 5076] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5584] <... openat resumed>) = 3 [pid 5583] close(3 [pid 5582] +++ exited with 0 +++ [pid 5581] write(3, "1", 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5583] <... close resumed>) = 0 [pid 5581] <... write resumed>) = 1 [pid 5584] write(3, "1000", 4 [pid 5583] symlink("/dev/binderfs", "./binderfs" [pid 5581] write(3, "\x32\x00", 2 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] lstat("./81/binderfs", [pid 5583] <... symlink resumed>) = 0 [pid 5583] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5583] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5583] write(3, "1", 1) = 1 [pid 5581] <... write resumed>) = 2 [pid 5583] write(3, "\x32\x00", 2 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5584] <... write resumed>) = 4 [pid 5583] <... write resumed>) = 2 [pid 5581] exit_group(0 [pid 5079] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5584] close(3 [pid 5583] exit_group(0 [pid 5581] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./81/binderfs" [pid 5584] <... close resumed>) = 0 [pid 5583] <... exit_group resumed>) = ? [pid 5583] +++ exited with 0 +++ [pid 5079] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5584] symlink("/dev/binderfs", "./binderfs" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... openat resumed>) = 3 [pid 5077] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5581] +++ exited with 0 +++ [pid 5079] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5080] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] close(3 [pid 5077] fstat(3, [pid 5081] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5079] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5584] <... symlink resumed>) = 0 [pid 5076] rmdir("./81" [pid 5584] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5081] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] lstat("./83/binderfs", [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... rmdir resumed>) = 0 [pid 5584] <... madvise resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5584] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./83/binderfs" [pid 5077] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./82", 0777 [pid 5081] getdents64(3, [pid 5080] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./83/binderfs", [pid 5076] <... mkdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5584] <... openat resumed>) = 3 [pid 5081] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./86/binderfs", [pid 5079] getdents64(3, [pid 5077] unlink("./83/binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5584] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5585 attached [pid 5584] <... write resumed>) = 1 [pid 5081] lstat("./87/binderfs", [pid 5080] unlink("./86/binderfs" [pid 5079] close(3 [pid 5077] getdents64(3, [pid 5585] chdir("./82" [pid 5584] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5585] <... chdir resumed>) = 0 [pid 5584] <... write resumed>) = 2 [pid 5081] unlink("./87/binderfs" [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5585 [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5584] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] rmdir("./83" [pid 5077] close(3 [pid 5585] <... prctl resumed>) = 0 [pid 5584] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5080] close(3 [pid 5585] setpgid(0, 0 [pid 5584] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5585] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5080] <... close resumed>) = 0 [pid 5079] mkdir("./84", 0777 [pid 5077] rmdir("./83" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... close resumed>) = 0 [pid 5080] rmdir("./86" [pid 5079] <... mkdir resumed>) = 0 [pid 5075] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] rmdir("./87" [pid 5080] <... rmdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] mkdir("./84", 0777 [pid 5075] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] mkdir("./87", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5081] mkdir("./88", 0777 [pid 5075] unlink("./78/binderfs") = 0 [pid 5075] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./78" [pid 5080] <... mkdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5075] mkdir("./79", 0777 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5586 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5587 ./strace-static-x86_64: Process 5586 attached [pid 5586] chdir("./84") = 0 [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5586] setpgid(0, 0) = 0 [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5589 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5588 ./strace-static-x86_64: Process 5588 attached [pid 5586] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5590 [pid 5588] chdir("./84" [pid 5586] write(3, "1000", 4 [pid 5588] <... chdir resumed>) = 0 [pid 5586] <... write resumed>) = 4 ./strace-static-x86_64: Process 5587 attached [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5586] close(3./strace-static-x86_64: Process 5590 attached [pid 5588] <... prctl resumed>) = 0 [pid 5587] chdir("./79" [pid 5586] <... close resumed>) = 0 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5589 attached [pid 5590] chdir("./87" [pid 5588] setpgid(0, 0 [pid 5587] <... chdir resumed>) = 0 [pid 5586] symlink("/dev/binderfs", "./binderfs" [pid 5590] <... chdir resumed>) = 0 [pid 5589] chdir("./88" [pid 5588] <... setpgid resumed>) = 0 [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5586] <... symlink resumed>) = 0 [pid 5585] <... openat resumed>) = 3 [pid 5590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5589] <... chdir resumed>) = 0 [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5587] <... prctl resumed>) = 0 [pid 5586] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5590] <... prctl resumed>) = 0 [pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5588] <... openat resumed>) = 3 [pid 5587] setpgid(0, 0 [pid 5586] <... madvise resumed>) = 0 [pid 5585] write(3, "1000", 4 [pid 5590] setpgid(0, 0 [pid 5588] write(3, "1000", 4 [pid 5587] <... setpgid resumed>) = 0 [pid 5586] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5590] <... setpgid resumed>) = 0 [pid 5589] <... prctl resumed>) = 0 [pid 5588] <... write resumed>) = 4 [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5586] <... openat resumed>) = 3 [pid 5585] <... write resumed>) = 4 [pid 5590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5589] setpgid(0, 0 [pid 5588] close(3 [pid 5587] <... openat resumed>) = 3 [pid 5586] write(3, "1", 1 [pid 5585] close(3 [pid 5590] <... openat resumed>) = 3 [pid 5589] <... setpgid resumed>) = 0 [pid 5588] <... close resumed>) = 0 [pid 5587] write(3, "1000", 4 [pid 5586] <... write resumed>) = 1 [pid 5590] write(3, "1000", 4 [pid 5588] symlink("/dev/binderfs", "./binderfs" [pid 5587] <... write resumed>) = 4 [pid 5586] write(3, "\x32\x00", 2 [pid 5590] <... write resumed>) = 4 [pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] <... symlink resumed>) = 0 [pid 5587] close(3 [pid 5586] <... write resumed>) = 2 [pid 5585] <... close resumed>) = 0 [pid 5590] close(3 [pid 5589] <... openat resumed>) = 3 [pid 5588] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5587] <... close resumed>) = 0 [pid 5586] exit_group(0 [pid 5585] symlink("/dev/binderfs", "./binderfs" [pid 5590] <... close resumed>) = 0 [pid 5589] write(3, "1000", 4 [pid 5588] <... madvise resumed>) = 0 [pid 5587] symlink("/dev/binderfs", "./binderfs" [pid 5586] <... exit_group resumed>) = ? [pid 5590] symlink("/dev/binderfs", "./binderfs" [pid 5589] <... write resumed>) = 4 [pid 5588] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5587] <... symlink resumed>) = 0 [pid 5586] +++ exited with 0 +++ [pid 5585] <... symlink resumed>) = 0 [pid 5590] <... symlink resumed>) = 0 [pid 5589] close(3 [pid 5588] <... openat resumed>) = 3 [pid 5587] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5585] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5590] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5589] <... close resumed>) = 0 [pid 5588] write(3, "1", 1 [pid 5587] <... madvise resumed>) = 0 [pid 5590] <... madvise resumed>) = 0 [pid 5589] symlink("/dev/binderfs", "./binderfs" [pid 5588] <... write resumed>) = 1 [pid 5587] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5585] <... madvise resumed>) = 0 [pid 5590] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5589] <... symlink resumed>) = 0 [pid 5588] write(3, "\x32\x00", 2 [pid 5587] <... openat resumed>) = 3 [pid 5585] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5590] <... openat resumed>) = 3 [pid 5589] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5587] write(3, "1", 1 [pid 5585] <... openat resumed>) = 3 [pid 5590] write(3, "1", 1 [pid 5589] <... madvise resumed>) = 0 [pid 5588] <... write resumed>) = 2 [pid 5587] <... write resumed>) = 1 [pid 5585] write(3, "1", 1 [pid 5079] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] <... write resumed>) = 1 [pid 5589] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5588] exit_group(0 [pid 5587] write(3, "\x32\x00", 2 [pid 5585] <... write resumed>) = 1 [pid 5590] write(3, "\x32\x00", 2 [pid 5589] <... openat resumed>) = 3 [pid 5588] <... exit_group resumed>) = ? [pid 5585] write(3, "\x32\x00", 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5590] <... write resumed>) = 2 [pid 5589] write(3, "1", 1 [pid 5585] <... write resumed>) = 2 [pid 5079] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5590] exit_group(0 [pid 5589] <... write resumed>) = 1 [pid 5588] +++ exited with 0 +++ [pid 5587] <... write resumed>) = 2 [pid 5585] exit_group(0 [pid 5590] <... exit_group resumed>) = ? [pid 5589] write(3, "\x32\x00", 2 [pid 5585] <... exit_group resumed>) = ? [pid 5079] <... openat resumed>) = 3 [pid 5590] +++ exited with 0 +++ [pid 5587] exit_group(0) = ? [pid 5587] +++ exited with 0 +++ [pid 5585] +++ exited with 0 +++ [pid 5589] <... write resumed>) = 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] fstat(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5589] exit_group(0 [pid 5080] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] <... exit_group resumed>) = ? [pid 5077] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] fstat(3, [pid 5079] lstat("./84/binderfs", [pid 5076] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] unlink("./84/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] fstat(3, [pid 5075] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5589] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5077] lstat("./84/binderfs", [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] lstat("./87/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] unlink("./84/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] unlink("./87/binderfs" [pid 5079] close(3 [pid 5081] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./82/binderfs", [pid 5075] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... unlink resumed>) = 0 [pid 5079] rmdir("./84" [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] unlink("./82/binderfs" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] mkdir("./85", 0777 [pid 5077] close(3 [pid 5081] fstat(3, [pid 5080] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] lstat("./79/binderfs", [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5081] getdents64(3, [pid 5080] rmdir("./87" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5591 [pid 5077] rmdir("./84" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5075] unlink("./79/binderfs" [pid 5081] lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5081] unlink("./88/binderfs" [pid 5076] close(3 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5591 attached [pid 5081] <... unlink resumed>) = 0 [pid 5080] mkdir("./88", 0777 [pid 5077] mkdir("./85", 0777 [pid 5076] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5081] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] rmdir("./82" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] rmdir("./88") = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5081] mkdir("./89", 0777) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... rmdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3./strace-static-x86_64: Process 5592 attached [pid 5591] chdir("./85" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5592 [pid 5076] mkdir("./83", 0777 [pid 5591] <... chdir resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5593 [pid 5075] <... close resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] rmdir("./79" [pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5594 ./strace-static-x86_64: Process 5594 attached [pid 5075] <... rmdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5591] <... prctl resumed>) = 0 [pid 5075] mkdir("./80", 0777./strace-static-x86_64: Process 5593 attached [pid 5594] chdir("./88" [pid 5593] chdir("./85" [pid 5594] <... chdir resumed>) = 0 [pid 5593] <... chdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5595 [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] setpgid(0, 0 [pid 5594] <... prctl resumed>) = 0 [pid 5593] <... prctl resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5594] setpgid(0, 0 [pid 5593] setpgid(0, 0 [pid 5591] <... setpgid resumed>) = 0 [pid 5594] <... setpgid resumed>) = 0 [pid 5593] <... setpgid resumed>) = 0 [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5595 attached [pid 5594] <... openat resumed>) = 3 [pid 5593] <... openat resumed>) = 3 [pid 5592] chdir("./89" [pid 5591] <... openat resumed>) = 3 [pid 5594] write(3, "1000", 4 [pid 5593] write(3, "1000", 4 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5596 ./strace-static-x86_64: Process 5596 attached [pid 5594] <... write resumed>) = 4 [pid 5593] <... write resumed>) = 4 [pid 5591] write(3, "1000", 4 [pid 5596] chdir("./80" [pid 5594] close(3 [pid 5593] close(3 [pid 5592] <... chdir resumed>) = 0 [pid 5591] <... write resumed>) = 4 [pid 5596] <... chdir resumed>) = 0 [pid 5594] <... close resumed>) = 0 [pid 5593] <... close resumed>) = 0 [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] close(3 [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] symlink("/dev/binderfs", "./binderfs" [pid 5593] symlink("/dev/binderfs", "./binderfs" [pid 5592] <... prctl resumed>) = 0 [pid 5591] <... close resumed>) = 0 [pid 5596] <... prctl resumed>) = 0 [pid 5595] chdir("./83" [pid 5594] <... symlink resumed>) = 0 [pid 5593] <... symlink resumed>) = 0 [pid 5592] setpgid(0, 0 [pid 5591] symlink("/dev/binderfs", "./binderfs" [pid 5596] setpgid(0, 0 [pid 5594] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5593] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5592] <... setpgid resumed>) = 0 [pid 5596] <... setpgid resumed>) = 0 [pid 5595] <... chdir resumed>) = 0 [pid 5594] <... madvise resumed>) = 0 [pid 5593] <... madvise resumed>) = 0 [pid 5591] <... symlink resumed>) = 0 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5593] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5591] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5596] <... openat resumed>) = 3 [pid 5595] <... prctl resumed>) = 0 [pid 5594] <... openat resumed>) = 3 [pid 5593] <... openat resumed>) = 3 [pid 5596] write(3, "1000", 4 [pid 5595] setpgid(0, 0 [pid 5594] write(3, "1", 1 [pid 5593] write(3, "1", 1 [pid 5592] <... openat resumed>) = 3 [pid 5591] <... madvise resumed>) = 0 [pid 5596] <... write resumed>) = 4 [pid 5595] <... setpgid resumed>) = 0 [pid 5594] <... write resumed>) = 1 [pid 5593] <... write resumed>) = 1 [pid 5592] write(3, "1000", 4 [pid 5591] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5596] close(3 [pid 5594] write(3, "\x32\x00", 2 [pid 5593] write(3, "\x32\x00", 2 [pid 5596] <... close resumed>) = 0 [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5594] <... write resumed>) = 2 [pid 5593] <... write resumed>) = 2 [pid 5592] <... write resumed>) = 4 [pid 5591] <... openat resumed>) = 3 [pid 5596] symlink("/dev/binderfs", "./binderfs" [pid 5595] <... openat resumed>) = 3 [pid 5594] exit_group(0 [pid 5593] exit_group(0 [pid 5592] close(3 [pid 5591] write(3, "1", 1 [pid 5596] <... symlink resumed>) = 0 [pid 5595] write(3, "1000", 4 [pid 5594] <... exit_group resumed>) = ? [pid 5593] <... exit_group resumed>) = ? [pid 5592] <... close resumed>) = 0 [pid 5591] <... write resumed>) = 1 [pid 5596] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5595] <... write resumed>) = 4 [pid 5594] +++ exited with 0 +++ [pid 5593] +++ exited with 0 +++ [pid 5592] symlink("/dev/binderfs", "./binderfs" [pid 5591] write(3, "\x32\x00", 2 [pid 5596] <... madvise resumed>) = 0 [pid 5595] close(3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5596] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5592] <... symlink resumed>) = 0 [pid 5596] <... openat resumed>) = 3 [pid 5596] write(3, "1", 1 [pid 5077] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5596] <... write resumed>) = 1 [pid 5595] <... close resumed>) = 0 [pid 5592] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5591] <... write resumed>) = 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5594, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5596] write(3, "\x32\x00", 2 [pid 5595] symlink("/dev/binderfs", "./binderfs" [pid 5077] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5592] <... madvise resumed>) = 0 [pid 5596] <... write resumed>) = 2 [pid 5595] <... symlink resumed>) = 0 [pid 5591] exit_group(0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... openat resumed>) = 3 [pid 5596] exit_group(0 [pid 5595] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5592] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5591] <... exit_group resumed>) = ? [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] fstat(3, [pid 5596] <... exit_group resumed>) = ? [pid 5595] <... madvise resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5596] +++ exited with 0 +++ [pid 5592] <... openat resumed>) = 3 [pid 5591] +++ exited with 0 +++ [pid 5077] getdents64(3, [pid 5595] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5592] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5596, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5595] <... openat resumed>) = 3 [pid 5592] <... write resumed>) = 1 [pid 5080] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] write(3, "1", 1 [pid 5592] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] <... write resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./85/binderfs", [pid 5079] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] unlink("./85/binderfs" [pid 5079] fstat(3, [pid 5077] <... unlink resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5079] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] close(3 [pid 5079] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5592] <... write resumed>) = 2 [pid 5595] write(3, "\x32\x00", 2 [pid 5080] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./85" [pid 5595] <... write resumed>) = 2 [pid 5592] exit_group(0 [pid 5080] <... openat resumed>) = 3 [pid 5079] lstat("./85/binderfs", [pid 5077] <... rmdir resumed>) = 0 [pid 5595] exit_group(0 [pid 5592] <... exit_group resumed>) = ? [pid 5080] fstat(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] mkdir("./86", 0777 [pid 5595] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] unlink("./85/binderfs" [pid 5077] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5595] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5075] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5592] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5597 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5081] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./88/binderfs", [pid 5079] rmdir("./85" [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5597 attached [pid 5081] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] unlink("./88/binderfs" [pid 5079] mkdir("./86", 0777 [pid 5597] chdir("./86" [pid 5081] <... openat resumed>) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5597] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5080] getdents64(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5597] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5598 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5597] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5597] <... setpgid resumed>) = 0 [pid 5081] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] rmdir("./88" [pid 5076] <... openat resumed>) = 3 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5597] <... openat resumed>) = 3 [pid 5081] lstat("./89/binderfs", [pid 5080] <... rmdir resumed>) = 0 [pid 5076] fstat(3, [pid 5075] lstat("./80/binderfs", [pid 5597] write(3, "1000", 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] mkdir("./89", 0777 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5597] <... write resumed>) = 4 [pid 5081] unlink("./89/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5597] close(3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5597] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] unlink("./80/binderfs" [pid 5597] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5597] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5597] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5076] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5597] <... madvise resumed>) = 0 [pid 5081] rmdir("./89"./strace-static-x86_64: Process 5598 attached [pid 5597] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5599 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5597] <... openat resumed>) = 3 [pid 5081] mkdir("./90", 0777 [pid 5076] lstat("./83/binderfs", [pid 5598] chdir("./86" [pid 5597] write(3, "1", 1 [pid 5081] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5598] <... chdir resumed>) = 0 [pid 5597] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3./strace-static-x86_64: Process 5600 attached [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5597] write(3, "\x32\x00", 2 [pid 5076] unlink("./83/binderfs" [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5599 attached [pid 5600] chdir("./90" [pid 5598] <... prctl resumed>) = 0 [pid 5597] <... write resumed>) = 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5600 [pid 5599] chdir("./89" [pid 5598] setpgid(0, 0 [pid 5597] exit_group(0 [pid 5600] <... chdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] rmdir("./80" [pid 5599] <... chdir resumed>) = 0 [pid 5598] <... setpgid resumed>) = 0 [pid 5597] <... exit_group resumed>) = ? [pid 5600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5597] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5599] <... prctl resumed>) = 0 [pid 5599] setpgid(0, 0) = 0 [pid 5598] <... openat resumed>) = 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5600] <... prctl resumed>) = 0 [pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5598] write(3, "1000", 4 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./81", 0777 [pid 5600] setpgid(0, 0 [pid 5599] <... openat resumed>) = 3 [pid 5076] close(3 [pid 5599] write(3, "1000", 4) = 4 [pid 5075] <... mkdir resumed>) = 0 [pid 5599] close(3) = 0 [pid 5077] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5598] <... write resumed>) = 4 [pid 5600] <... setpgid resumed>) = 0 [pid 5599] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./83" [pid 5599] <... symlink resumed>) = 0 [pid 5598] close(3 [pid 5077] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5599] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5599] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5598] <... close resumed>) = 0 [pid 5077] fstat(3, [pid 5076] mkdir("./84", 0777 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5601 [pid 5599] <... openat resumed>) = 3 [pid 5598] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5599] write(3, "1", 1./strace-static-x86_64: Process 5601 attached ) = 1 [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5601] chdir("./81" [pid 5600] <... openat resumed>) = 3 [pid 5599] write(3, "\x32\x00", 2 [pid 5598] <... symlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5601] <... chdir resumed>) = 0 [pid 5600] write(3, "1000", 4 [pid 5599] <... write resumed>) = 2 [pid 5598] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5599] exit_group(0 [pid 5601] <... prctl resumed>) = 0 [pid 5599] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] setpgid(0, 0 [pid 5600] <... write resumed>) = 4 [pid 5599] +++ exited with 0 +++ [pid 5598] <... madvise resumed>) = 0 [pid 5077] lstat("./86/binderfs", [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5602 [pid 5601] <... setpgid resumed>) = 0 [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] close(3 [pid 5598] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5602 attached [pid 5601] <... openat resumed>) = 3 [pid 5600] <... close resumed>) = 0 [pid 5598] <... openat resumed>) = 3 [pid 5077] unlink("./86/binderfs" [pid 5602] chdir("./84" [pid 5601] write(3, "1000", 4 [pid 5600] symlink("/dev/binderfs", "./binderfs" [pid 5598] write(3, "1", 1 [pid 5602] <... chdir resumed>) = 0 [pid 5601] <... write resumed>) = 4 [pid 5600] <... symlink resumed>) = 0 [pid 5598] <... write resumed>) = 1 [pid 5077] <... unlink resumed>) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] close(3 [pid 5600] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5598] write(3, "\x32\x00", 2 [pid 5077] getdents64(3, [pid 5602] <... prctl resumed>) = 0 [pid 5601] <... close resumed>) = 0 [pid 5602] setpgid(0, 0) = 0 [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5602] <... openat resumed>) = 3 [pid 5601] symlink("/dev/binderfs", "./binderfs" [pid 5600] <... madvise resumed>) = 0 [pid 5598] <... write resumed>) = 2 [pid 5080] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5602] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5602] <... write resumed>) = 4 [pid 5598] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5602] close(3 [pid 5601] <... symlink resumed>) = 0 [pid 5598] <... exit_group resumed>) = ? [pid 5080] <... openat resumed>) = 3 [pid 5077] rmdir("./86" [pid 5602] <... close resumed>) = 0 [pid 5601] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5600] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] fstat(3, [pid 5602] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... rmdir resumed>) = 0 [pid 5602] <... symlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] mkdir("./87", 0777 [pid 5602] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] getdents64(3, [pid 5602] <... madvise resumed>) = 0 [pid 5602] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... mkdir resumed>) = 0 [pid 5602] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5602] write(3, "1", 1 [pid 5601] <... madvise resumed>) = 0 [pid 5080] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5602] <... write resumed>) = 1 [pid 5601] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5600] <... openat resumed>) = 3 [pid 5598] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5602] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5598, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] lstat("./89/binderfs", [pid 5602] <... write resumed>) = 2 [pid 5601] <... openat resumed>) = 3 [pid 5600] write(3, "1", 1 [pid 5602] exit_group(0 [pid 5601] write(3, "1", 1 [pid 5600] <... write resumed>) = 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5603 [pid 5602] <... exit_group resumed>) = ? [pid 5601] <... write resumed>) = 1 [pid 5600] write(3, "\x32\x00", 2 [pid 5080] unlink("./89/binderfs" [pid 5602] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5601] write(3, "\x32\x00", 2 [pid 5080] getdents64(3, [pid 5079] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5079] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] rmdir("./89" [pid 5079] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] mkdir("./90", 0777 [pid 5079] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5079] lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] unlink("./86/binderfs" [pid 5076] fstat(3, [pid 5079] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(3, [pid 5079] close(3) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5604 [pid 5079] rmdir("./86" [pid 5076] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5603 attached [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./87", 0777) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5605 ./strace-static-x86_64: Process 5604 attached [pid 5604] chdir("./90") = 0 [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5605 attached [pid 5603] chdir("./87" [pid 5601] <... write resumed>) = 2 [pid 5600] <... write resumed>) = 2 [pid 5076] lstat("./84/binderfs", [pid 5601] exit_group(0) = ? [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5604] setpgid(0, 0) = 0 [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] unlink("./84/binderfs" [pid 5604] write(3, "1000", 4 [pid 5605] chdir("./87" [pid 5604] <... write resumed>) = 4 [pid 5601] +++ exited with 0 +++ [pid 5600] exit_group(0 [pid 5076] <... unlink resumed>) = 0 [pid 5605] <... chdir resumed>) = 0 [pid 5604] close(3 [pid 5603] <... chdir resumed>) = 0 [pid 5600] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] <... close resumed>) = 0 [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5605] <... prctl resumed>) = 0 [pid 5604] symlink("/dev/binderfs", "./binderfs" [pid 5076] close(3 [pid 5605] setpgid(0, 0 [pid 5604] <... symlink resumed>) = 0 [pid 5603] <... prctl resumed>) = 0 [pid 5600] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5605] <... setpgid resumed>) = 0 [pid 5604] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5603] setpgid(0, 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] <... madvise resumed>) = 0 [pid 5603] <... setpgid resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] rmdir("./84" [pid 5075] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] <... openat resumed>) = 3 [pid 5604] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5605] write(3, "1000", 4 [pid 5604] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5605] <... write resumed>) = 4 [pid 5604] write(3, "1", 1 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5076] mkdir("./85", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5605] close(3 [pid 5604] <... write resumed>) = 1 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] <... close resumed>) = 0 [pid 5604] write(3, "\x32\x00", 2 [pid 5605] symlink("/dev/binderfs", "./binderfs" [pid 5604] <... write resumed>) = 2 [pid 5603] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] <... symlink resumed>) = 0 [pid 5604] exit_group(0 [pid 5081] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5604] <... exit_group resumed>) = ? [pid 5603] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 [pid 5605] <... madvise resumed>) = 0 [pid 5604] +++ exited with 0 +++ [pid 5603] <... write resumed>) = 4 [pid 5081] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5605] write(3, "1", 1 [pid 5603] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5605] <... write resumed>) = 1 [pid 5603] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5606 [pid 5605] write(3, "\x32\x00", 2 [pid 5603] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5605] <... write resumed>) = 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5606 attached [pid 5605] exit_group(0 [pid 5603] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5606] chdir("./85" [pid 5605] <... exit_group resumed>) = ? [pid 5603] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5606] <... chdir resumed>) = 0 [pid 5605] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5603] <... madvise resumed>) = 0 [pid 5081] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] <... prctl resumed>) = 0 [pid 5603] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] lstat("./81/binderfs", [pid 5606] setpgid(0, 0 [pid 5603] <... openat resumed>) = 3 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5606] <... setpgid resumed>) = 0 [pid 5081] lstat("./90/binderfs", [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5075] unlink("./81/binderfs" [pid 5606] <... openat resumed>) = 3 [pid 5603] <... write resumed>) = 1 [pid 5081] unlink("./90/binderfs" [pid 5080] fstat(3, [pid 5606] write(3, "1000", 4 [pid 5079] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5606] <... write resumed>) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] close(3 [pid 5603] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5606] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5606] symlink("/dev/binderfs", "./binderfs" [pid 5079] fstat(3, [pid 5606] <... symlink resumed>) = 0 [pid 5603] <... write resumed>) = 2 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5606] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5606] <... madvise resumed>) = 0 [pid 5603] exit_group(0 [pid 5081] close(3 [pid 5080] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] close(3 [pid 5606] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5603] <... exit_group resumed>) = ? [pid 5081] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5606] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5606] write(3, "1", 1 [pid 5079] lstat("./87/binderfs", [pid 5606] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5606] write(3, "\x32\x00", 2 [pid 5079] unlink("./87/binderfs" [pid 5606] <... write resumed>) = 2 [pid 5603] +++ exited with 0 +++ [pid 5081] rmdir("./90" [pid 5080] lstat("./90/binderfs", [pid 5079] <... unlink resumed>) = 0 [pid 5075] rmdir("./81" [pid 5606] exit_group(0 [pid 5079] getdents64(3, [pid 5606] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5606] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3 [pid 5075] <... rmdir resumed>) = 0 [pid 5081] mkdir("./91", 0777 [pid 5080] unlink("./90/binderfs" [pid 5079] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] mkdir("./82", 0777 [pid 5079] rmdir("./87" [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] mkdir("./88", 0777 [pid 5077] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] close(3 [pid 5077] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5607 [pid 5080] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5608 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5607 attached [pid 5607] chdir("./91" [pid 5080] rmdir("./90" [pid 5077] fstat(3, [pid 5076] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5607] <... chdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] mkdir("./91", 0777 [pid 5076] fstat(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5609 [pid 5077] getdents64(3, [pid 5607] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5608 attached [pid 5607] setpgid(0, 0 [pid 5608] chdir("./88" [pid 5607] <... setpgid resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5608] <... chdir resumed>) = 0 [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] <... openat resumed>) = 3 [pid 5608] <... prctl resumed>) = 0 [pid 5607] write(3, "1000", 4 [pid 5608] setpgid(0, 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5608] <... setpgid resumed>) = 0 [pid 5607] <... write resumed>) = 4 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5610 [pid 5077] lstat("./87/binderfs", [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5609 attached [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5607] close(3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5610 attached [pid 5608] <... openat resumed>) = 3 [pid 5607] <... close resumed>) = 0 [pid 5077] unlink("./87/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5610] chdir("./91" [pid 5609] chdir("./82" [pid 5608] write(3, "1000", 4 [pid 5607] symlink("/dev/binderfs", "./binderfs" [pid 5610] <... chdir resumed>) = 0 [pid 5609] <... chdir resumed>) = 0 [pid 5608] <... write resumed>) = 4 [pid 5607] <... symlink resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] lstat("./85/binderfs", [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5608] close(3 [pid 5607] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5610] <... prctl resumed>) = 0 [pid 5609] <... prctl resumed>) = 0 [pid 5608] <... close resumed>) = 0 [pid 5607] <... madvise resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5610] setpgid(0, 0 [pid 5609] setpgid(0, 0 [pid 5608] symlink("/dev/binderfs", "./binderfs" [pid 5607] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] close(3 [pid 5076] unlink("./85/binderfs" [pid 5610] <... setpgid resumed>) = 0 [pid 5609] <... setpgid resumed>) = 0 [pid 5608] <... symlink resumed>) = 0 [pid 5607] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5607] write(3, "1", 1 [pid 5076] <... unlink resumed>) = 0 [pid 5610] <... openat resumed>) = 3 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] <... madvise resumed>) = 0 [pid 5607] <... write resumed>) = 1 [pid 5077] rmdir("./87" [pid 5610] write(3, "1000", 4 [pid 5608] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5607] write(3, "\x32\x00", 2 [pid 5076] getdents64(3, [pid 5610] <... write resumed>) = 4 [pid 5608] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5610] close(3 [pid 5609] <... openat resumed>) = 3 [pid 5608] write(3, "1", 1 [pid 5077] mkdir("./88", 0777 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5610] <... close resumed>) = 0 [pid 5609] write(3, "1000", 4 [pid 5610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5609] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5610] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5609] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5610] <... madvise resumed>) = 0 [pid 5609] <... close resumed>) = 0 [pid 5610] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5610] write(3, "1", 1 [pid 5076] rmdir("./85" [pid 5609] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5611 attached [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5611 [pid 5611] chdir("./88" [pid 5609] <... symlink resumed>) = 0 [pid 5076] mkdir("./86", 0777 [pid 5609] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5611] <... chdir resumed>) = 0 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5611] setpgid(0, 0) = 0 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5609] <... madvise resumed>) = 0 [pid 5611] <... openat resumed>) = 3 [pid 5609] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5611] write(3, "1000", 4 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5612 [pid 5611] <... write resumed>) = 4 [pid 5609] <... openat resumed>) = 3 [pid 5611] close(3) = 0 [pid 5609] write(3, "1", 1 [pid 5611] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5611] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5612 attached ) = 0 [pid 5610] <... write resumed>) = 1 [pid 5609] <... write resumed>) = 1 [pid 5608] <... write resumed>) = 1 [pid 5607] <... write resumed>) = 2 [pid 5611] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5610] write(3, "\x32\x00", 2 [pid 5609] write(3, "\x32\x00", 2 [pid 5608] write(3, "\x32\x00", 2 [pid 5607] exit_group(0 [pid 5612] chdir("./86" [pid 5611] <... openat resumed>) = 3 [pid 5610] <... write resumed>) = 2 [pid 5609] <... write resumed>) = 2 [pid 5608] <... write resumed>) = 2 [pid 5607] <... exit_group resumed>) = ? [pid 5612] <... chdir resumed>) = 0 [pid 5611] write(3, "1", 1 [pid 5609] exit_group(0 [pid 5608] exit_group(0 [pid 5607] +++ exited with 0 +++ [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5611] <... write resumed>) = 1 [pid 5610] exit_group(0 [pid 5609] <... exit_group resumed>) = ? [pid 5608] <... exit_group resumed>) = ? [pid 5612] <... prctl resumed>) = 0 [pid 5611] write(3, "\x32\x00", 2 [pid 5610] <... exit_group resumed>) = ? [pid 5609] +++ exited with 0 +++ [pid 5608] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5607, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5612] setpgid(0, 0 [pid 5611] <... write resumed>) = 2 [pid 5610] +++ exited with 0 +++ [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5612] <... setpgid resumed>) = 0 [pid 5611] exit_group(0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5611] <... exit_group resumed>) = ? [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5611] +++ exited with 0 +++ [pid 5079] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... restart_syscall resumed>) = 0 [pid 5081] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5612] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5612] write(3, "1000", 4 [pid 5081] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5612] close(3 [pid 5081] fstat(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5612] <... close resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5612] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] fstat(3, [pid 5079] lstat("./88/binderfs", [pid 5077] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5612] <... symlink resumed>) = 0 [pid 5081] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5612] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5079] unlink("./88/binderfs" [pid 5077] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5612] <... madvise resumed>) = 0 [pid 5081] lstat("./91/binderfs", [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... unlink resumed>) = 0 [pid 5612] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5612] <... openat resumed>) = 3 [pid 5081] unlink("./91/binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] lstat("./91/binderfs", [pid 5079] close(3 [pid 5077] fstat(3, [pid 5612] write(3, "1", 1 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] getdents64(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./88" [pid 5077] getdents64(3, [pid 5080] unlink("./91/binderfs" [pid 5612] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5612] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] mkdir("./89", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] lstat("./82/binderfs", [pid 5081] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] rmdir("./91" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5613 attached [pid 5612] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] close(3 [pid 5077] lstat("./88/binderfs", [pid 5075] unlink("./82/binderfs" [pid 5613] chdir("./89" [pid 5612] exit_group(0 [pid 5081] mkdir("./92", 0777 [pid 5080] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5613 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5612] <... exit_group resumed>) = ? [pid 5081] <... mkdir resumed>) = 0 [pid 5080] rmdir("./91" [pid 5613] <... chdir resumed>) = 0 [pid 5077] unlink("./88/binderfs" [pid 5075] getdents64(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... rmdir resumed>) = 0 [pid 5612] +++ exited with 0 +++ [pid 5080] mkdir("./92", 0777 [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5614 attached [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5614 [pid 5613] <... prctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5612, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5614] chdir("./92" [pid 5613] setpgid(0, 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... close resumed>) = 0 [pid 5614] <... chdir resumed>) = 0 [pid 5613] <... setpgid resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5615 [pid 5077] rmdir("./88" [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] rmdir("./82" [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... rmdir resumed>) = 0 [pid 5614] <... prctl resumed>) = 0 [pid 5613] <... openat resumed>) = 3 [pid 5077] mkdir("./89", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5614] setpgid(0, 0 [pid 5613] write(3, "1000", 4./strace-static-x86_64: Process 5615 attached [pid 5615] chdir("./92" [pid 5077] <... mkdir resumed>) = 0 [pid 5613] <... write resumed>) = 4 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] <... chdir resumed>) = 0 [pid 5614] <... setpgid resumed>) = 0 [pid 5075] mkdir("./83", 0777 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5615] setpgid(0, 0) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5615] <... openat resumed>) = 3 [pid 5613] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5616 [pid 5076] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5615] write(3, "1000", 4) = 4 [pid 5613] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5616 attached [pid 5615] close(3 [pid 5613] symlink("/dev/binderfs", "./binderfs" [pid 5076] fstat(3, [pid 5616] chdir("./89" [pid 5615] <... close resumed>) = 0 [pid 5616] <... chdir resumed>) = 0 [pid 5615] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... symlink resumed>) = 0 [pid 5613] <... symlink resumed>) = 0 [pid 5616] <... prctl resumed>) = 0 [pid 5615] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5613] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5617 [pid 5616] setpgid(0, 0 [pid 5615] <... madvise resumed>) = 0 ./strace-static-x86_64: Process 5617 attached [pid 5616] <... setpgid resumed>) = 0 [pid 5615] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5613] <... madvise resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5617] chdir("./83" [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5615] <... openat resumed>) = 3 [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5613] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... chdir resumed>) = 0 [pid 5616] <... openat resumed>) = 3 [pid 5615] write(3, "1", 1 [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] write(3, "1000", 4 [pid 5615] <... write resumed>) = 1 [pid 5614] <... openat resumed>) = 3 [pid 5613] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] <... prctl resumed>) = 0 [pid 5616] <... write resumed>) = 4 [pid 5615] write(3, "\x32\x00", 2 [pid 5617] setpgid(0, 0 [pid 5616] close(3 [pid 5614] write(3, "1000", 4 [pid 5613] write(3, "1", 1 [pid 5076] lstat("./86/binderfs", [pid 5617] <... setpgid resumed>) = 0 [pid 5616] <... close resumed>) = 0 [pid 5615] <... write resumed>) = 2 [pid 5614] <... write resumed>) = 4 [pid 5613] <... write resumed>) = 1 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5616] symlink("/dev/binderfs", "./binderfs" [pid 5615] exit_group(0 [pid 5614] close(3 [pid 5613] write(3, "\x32\x00", 2 [pid 5076] unlink("./86/binderfs" [pid 5617] <... openat resumed>) = 3 [pid 5616] <... symlink resumed>) = 0 [pid 5615] <... exit_group resumed>) = ? [pid 5614] <... close resumed>) = 0 [pid 5617] write(3, "1000", 4 [pid 5616] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5615] +++ exited with 0 +++ [pid 5617] <... write resumed>) = 4 [pid 5616] <... madvise resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5614] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... unlink resumed>) = 0 [pid 5617] close(3 [pid 5616] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5613] <... write resumed>) = 2 [pid 5617] <... close resumed>) = 0 [pid 5616] <... openat resumed>) = 3 [pid 5614] <... symlink resumed>) = 0 [pid 5617] symlink("/dev/binderfs", "./binderfs" [pid 5616] write(3, "1", 1 [pid 5614] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5613] exit_group(0 [pid 5076] getdents64(3, [pid 5617] <... symlink resumed>) = 0 [pid 5616] <... write resumed>) = 1 [pid 5617] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5616] write(3, "\x32\x00", 2 [pid 5614] <... madvise resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5617] <... madvise resumed>) = 0 [pid 5616] <... write resumed>) = 2 [pid 5613] <... exit_group resumed>) = ? [pid 5614] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] close(3 [pid 5617] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5616] exit_group(0 [pid 5617] <... openat resumed>) = 3 [pid 5616] <... exit_group resumed>) = ? [pid 5617] write(3, "1", 1 [pid 5616] +++ exited with 0 +++ [pid 5614] <... openat resumed>) = 3 [pid 5613] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5617] <... write resumed>) = 1 [pid 5614] write(3, "1", 1 [pid 5080] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] write(3, "\x32\x00", 2 [pid 5614] <... write resumed>) = 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] rmdir("./86" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] <... write resumed>) = 2 [pid 5614] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5617] exit_group(0) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5617] +++ exited with 0 +++ [pid 5614] <... write resumed>) = 2 [pid 5080] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./87", 0777 [pid 5614] exit_group(0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5614] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5614] +++ exited with 0 +++ [pid 5080] fstat(3, [pid 5079] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5618 attached [pid 5081] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5618 [pid 5618] chdir("./87" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./92/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5081] <... openat resumed>) = 3 [pid 5080] unlink("./92/binderfs" [pid 5077] <... openat resumed>) = 3 [pid 5618] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5079] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5618] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... close resumed>) = 0 [pid 5079] lstat("./89/binderfs", [pid 5077] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5618] <... setpgid resumed>) = 0 [pid 5081] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] rmdir("./92" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] fstat(3, [pid 5079] unlink("./89/binderfs" [pid 5081] lstat("./92/binderfs", [pid 5080] mkdir("./93", 0777 [pid 5077] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5618] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] write(3, "1000", 4 [pid 5081] unlink("./92/binderfs" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, [pid 5077] lstat("./89/binderfs", [pid 5075] getdents64(3, [pid 5618] <... write resumed>) = 4 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5619 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5618] close(3 [pid 5081] getdents64(3, [pid 5079] close(3 [pid 5077] unlink("./89/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5619 attached [pid 5618] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] chdir("./93" [pid 5618] symlink("/dev/binderfs", "./binderfs" [pid 5081] close(3 [pid 5079] rmdir("./89" [pid 5077] <... unlink resumed>) = 0 [pid 5619] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] <... symlink resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] rmdir("./92" [pid 5619] <... prctl resumed>) = 0 [pid 5618] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] lstat("./83/binderfs", [pid 5619] setpgid(0, 0 [pid 5618] <... madvise resumed>) = 0 [pid 5081] mkdir("./93", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5619] <... setpgid resumed>) = 0 [pid 5618] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... mkdir resumed>) = 0 [pid 5079] mkdir("./90", 0777 [pid 5077] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5620 attached [pid 5619] <... openat resumed>) = 3 [pid 5618] <... openat resumed>) = 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] unlink("./83/binderfs" [pid 5619] write(3, "1000", 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5620 [pid 5619] <... write resumed>) = 4 [pid 5619] close(3) = 0 [pid 5619] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5618] write(3, "1", 1 [pid 5619] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] rmdir("./89" [pid 5620] chdir("./93" [pid 5619] <... madvise resumed>) = 0 [pid 5618] <... write resumed>) = 1 [pid 5075] <... unlink resumed>) = 0 [pid 5619] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5619] write(3, "1", 1) = 1 [pid 5618] write(3, "\x32\x00", 2 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5621 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5619] write(3, "\x32\x00", 2) = 2 [pid 5618] <... write resumed>) = 2 [pid 5077] mkdir("./90", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5619] exit_group(0./strace-static-x86_64: Process 5621 attached ) = ? [pid 5621] chdir("./90" [pid 5620] <... chdir resumed>) = 0 [pid 5619] +++ exited with 0 +++ [pid 5618] exit_group(0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5621] <... chdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5618] <... exit_group resumed>) = ? [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... close resumed>) = 0 [pid 5621] <... prctl resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5621] setpgid(0, 0 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5621] <... setpgid resumed>) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./83" [pid 5621] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5622 [pid 5621] <... write resumed>) = 4 [pid 5080] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5621] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5622 attached [pid 5621] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5622] chdir("./90" [pid 5621] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] mkdir("./84", 0777 [pid 5622] <... chdir resumed>) = 0 [pid 5621] <... symlink resumed>) = 0 [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5618] +++ exited with 0 +++ [pid 5080] getdents64(3, [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5621] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... mkdir resumed>) = 0 [pid 5622] <... prctl resumed>) = 0 [pid 5621] <... madvise resumed>) = 0 [pid 5620] <... prctl resumed>) = 0 [pid 5080] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5622] setpgid(0, 0 [pid 5621] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5620] setpgid(0, 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5622] <... setpgid resumed>) = 0 [pid 5621] <... openat resumed>) = 3 [pid 5080] lstat("./93/binderfs", [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5621] write(3, "1", 1 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5622] <... openat resumed>) = 3 [pid 5621] <... write resumed>) = 1 [pid 5080] unlink("./93/binderfs" [pid 5622] write(3, "1000", 4 [pid 5621] write(3, "\x32\x00", 2 [pid 5620] <... setpgid resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5622] <... write resumed>) = 4 [pid 5621] <... write resumed>) = 2 [pid 5080] getdents64(3, [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5623 [pid 5622] close(3 [pid 5621] exit_group(0 [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5623 attached [pid 5622] <... close resumed>) = 0 [pid 5621] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5623] chdir("./84" [pid 5622] symlink("/dev/binderfs", "./binderfs" [pid 5621] +++ exited with 0 +++ [pid 5620] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5623] <... chdir resumed>) = 0 [pid 5622] <... symlink resumed>) = 0 [pid 5620] write(3, "1000", 4 [pid 5080] rmdir("./93" [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5620] <... write resumed>) = 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5076] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] <... prctl resumed>) = 0 [pid 5622] <... madvise resumed>) = 0 [pid 5620] close(3 [pid 5080] mkdir("./94", 0777 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5623] setpgid(0, 0 [pid 5622] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5620] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5623] <... setpgid resumed>) = 0 [pid 5622] <... openat resumed>) = 3 [pid 5620] symlink("/dev/binderfs", "./binderfs" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5624 attached [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5622] write(3, "1", 1 [pid 5620] <... symlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5624] chdir("./94" [pid 5623] <... openat resumed>) = 3 [pid 5622] <... write resumed>) = 1 [pid 5620] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5624 [pid 5079] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(3, [pid 5624] <... chdir resumed>) = 0 [pid 5623] write(3, "1000", 4 [pid 5622] write(3, "\x32\x00", 2 [pid 5620] <... madvise resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5623] <... write resumed>) = 4 [pid 5622] <... write resumed>) = 2 [pid 5620] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] fstat(3, [pid 5076] getdents64(3, [pid 5624] <... prctl resumed>) = 0 [pid 5623] close(3 [pid 5622] exit_group(0 [pid 5620] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5624] setpgid(0, 0 [pid 5623] <... close resumed>) = 0 [pid 5622] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5620] write(3, "1", 1 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5624] <... setpgid resumed>) = 0 [pid 5623] symlink("/dev/binderfs", "./binderfs" [pid 5622] +++ exited with 0 +++ [pid 5620] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5623] <... symlink resumed>) = 0 [pid 5620] write(3, "\x32\x00", 2 [pid 5079] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5624] <... openat resumed>) = 3 [pid 5623] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] write(3, "1000", 4 [pid 5623] <... madvise resumed>) = 0 [pid 5079] lstat("./90/binderfs", [pid 5624] <... write resumed>) = 4 [pid 5623] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5624] close(3 [pid 5623] <... openat resumed>) = 3 [pid 5079] unlink("./90/binderfs" [pid 5624] <... close resumed>) = 0 [pid 5623] write(3, "1", 1 [pid 5079] <... unlink resumed>) = 0 [pid 5624] symlink("/dev/binderfs", "./binderfs" [pid 5623] <... write resumed>) = 1 [pid 5620] <... write resumed>) = 2 [pid 5079] getdents64(3, [pid 5076] lstat("./87/binderfs", [pid 5624] <... symlink resumed>) = 0 [pid 5623] write(3, "\x32\x00", 2 [pid 5620] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5624] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5623] <... write resumed>) = 2 [pid 5620] <... exit_group resumed>) = ? [pid 5079] close(3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5624] <... madvise resumed>) = 0 [pid 5623] exit_group(0 [pid 5079] <... close resumed>) = 0 [pid 5077] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./87/binderfs" [pid 5624] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5623] <... exit_group resumed>) = ? [pid 5079] rmdir("./90" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] <... openat resumed>) = 3 [pid 5623] +++ exited with 0 +++ [pid 5620] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5624] write(3, "1", 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... rmdir resumed>) = 0 [pid 5624] <... write resumed>) = 1 [pid 5079] mkdir("./91", 0777 [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5624] write(3, "\x32\x00", 2 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5623, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5624] <... write resumed>) = 2 [pid 5081] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] close(3 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5624] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5624] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5625 [pid 5075] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5625 attached [pid 5624] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] rmdir("./87" [pid 5081] fstat(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./88", 0777 [pid 5081] getdents64(3, [pid 5080] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./90/binderfs", [pid 5075] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... mkdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5077] unlink("./90/binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./93/binderfs", [pid 5080] lstat("./94/binderfs", [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5626 [pid 5075] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] unlink("./93/binderfs" [pid 5080] unlink("./94/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5626 attached [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5626] chdir("./88" [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5077] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5626] <... chdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] close(3 [pid 5080] close(3 [pid 5077] rmdir("./90" [pid 5626] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5626] setpgid(0, 0 [pid 5080] rmdir("./94" [pid 5626] <... setpgid resumed>) = 0 [pid 5625] chdir("./91" [pid 5081] rmdir("./93" [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5625] <... chdir resumed>) = 0 [pid 5080] mkdir("./95", 0777 [pid 5626] <... openat resumed>) = 3 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] mkdir("./91", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5626] write(3, "1000", 4 [pid 5625] <... prctl resumed>) = 0 [pid 5081] mkdir("./94", 0777 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5626] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] lstat("./84/binderfs", [pid 5626] close(3 [pid 5625] setpgid(0, 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5627 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5626] <... close resumed>) = 0 [pid 5625] <... setpgid resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5626] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] unlink("./84/binderfs" [pid 5626] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5626] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5629 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5628 [pid 5075] <... unlink resumed>) = 0 [pid 5626] write(3, "1", 1 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5628 attached [pid 5626] <... write resumed>) = 1 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5626] write(3, "\x32\x00", 2 [pid 5625] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5629 attached ./strace-static-x86_64: Process 5627 attached [pid 5628] chdir("./91" [pid 5626] <... write resumed>) = 2 [pid 5625] write(3, "1000", 4 [pid 5075] close(3 [pid 5629] chdir("./94" [pid 5628] <... chdir resumed>) = 0 [pid 5627] chdir("./95" [pid 5626] exit_group(0 [pid 5629] <... chdir resumed>) = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5627] <... chdir resumed>) = 0 [pid 5626] <... exit_group resumed>) = ? [pid 5625] <... write resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] <... prctl resumed>) = 0 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] +++ exited with 0 +++ [pid 5625] close(3 [pid 5075] rmdir("./84" [pid 5629] <... prctl resumed>) = 0 [pid 5627] <... prctl resumed>) = 0 [pid 5625] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5629] setpgid(0, 0 [pid 5628] setpgid(0, 0 [pid 5627] setpgid(0, 0 [pid 5625] symlink("/dev/binderfs", "./binderfs" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... rmdir resumed>) = 0 [pid 5629] <... setpgid resumed>) = 0 [pid 5628] <... setpgid resumed>) = 0 [pid 5627] <... setpgid resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] mkdir("./85", 0777 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5625] <... symlink resumed>) = 0 [pid 5629] <... openat resumed>) = 3 [pid 5628] <... openat resumed>) = 3 [pid 5627] <... openat resumed>) = 3 [pid 5625] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... mkdir resumed>) = 0 [pid 5629] write(3, "1000", 4 [pid 5628] write(3, "1000", 4 [pid 5627] write(3, "1000", 4 [pid 5625] <... madvise resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5629] <... write resumed>) = 4 [pid 5628] <... write resumed>) = 4 [pid 5627] <... write resumed>) = 4 [pid 5625] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] close(3 [pid 5627] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5630 attached [pid 5629] <... close resumed>) = 0 [pid 5628] close(3 [pid 5627] <... close resumed>) = 0 [pid 5625] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5630] chdir("./85" [pid 5629] symlink("/dev/binderfs", "./binderfs" [pid 5628] <... close resumed>) = 0 [pid 5627] symlink("/dev/binderfs", "./binderfs" [pid 5625] write(3, "1", 1 [pid 5630] <... chdir resumed>) = 0 [pid 5629] <... symlink resumed>) = 0 [pid 5628] symlink("/dev/binderfs", "./binderfs" [pid 5627] <... symlink resumed>) = 0 [pid 5625] <... write resumed>) = 1 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5630 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5628] <... symlink resumed>) = 0 [pid 5627] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5625] write(3, "\x32\x00", 2 [pid 5076] fstat(3, [pid 5630] <... prctl resumed>) = 0 [pid 5629] <... madvise resumed>) = 0 [pid 5628] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5627] <... madvise resumed>) = 0 [pid 5629] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5627] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5629] <... openat resumed>) = 3 [pid 5627] <... openat resumed>) = 3 [pid 5629] write(3, "1", 1 [pid 5627] write(3, "1", 1 [pid 5628] <... madvise resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5630] setpgid(0, 0 [pid 5628] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] getdents64(3, [pid 5630] <... setpgid resumed>) = 0 [pid 5628] <... openat resumed>) = 3 [pid 5628] write(3, "1", 1 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5630] <... openat resumed>) = 3 [pid 5076] lstat("./88/binderfs", [pid 5630] write(3, "1000", 4 [pid 5629] <... write resumed>) = 1 [pid 5628] <... write resumed>) = 1 [pid 5627] <... write resumed>) = 1 [pid 5625] <... write resumed>) = 2 [pid 5630] <... write resumed>) = 4 [pid 5629] write(3, "\x32\x00", 2 [pid 5628] write(3, "\x32\x00", 2 [pid 5627] write(3, "\x32\x00", 2 [pid 5625] exit_group(0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5630] close(3 [pid 5629] <... write resumed>) = 2 [pid 5628] <... write resumed>) = 2 [pid 5627] <... write resumed>) = 2 [pid 5625] <... exit_group resumed>) = ? [pid 5076] unlink("./88/binderfs" [pid 5630] <... close resumed>) = 0 [pid 5629] exit_group(0 [pid 5627] exit_group(0 [pid 5630] symlink("/dev/binderfs", "./binderfs" [pid 5629] <... exit_group resumed>) = ? [pid 5627] <... exit_group resumed>) = ? [pid 5076] <... unlink resumed>) = 0 [pid 5630] <... symlink resumed>) = 0 [pid 5629] +++ exited with 0 +++ [pid 5628] exit_group(0 [pid 5627] +++ exited with 0 +++ [pid 5625] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5630] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5628] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5627, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] close(3 [pid 5630] <... madvise resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5081] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5630] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./88" [pid 5628] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... rmdir resumed>) = 0 [pid 5630] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5080] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] mkdir("./89", 0777 [pid 5630] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5081] getdents64(3, [pid 5080] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] fstat(3, [pid 5630] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5081] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5079] getdents64(3, [pid 5630] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] lstat("./94/binderfs", [pid 5080] getdents64(3, [pid 5079] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] unlink("./94/binderfs" [pid 5080] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./91/binderfs", [pid 5077] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5080] lstat("./95/binderfs", [pid 5079] unlink("./91/binderfs" [pid 5077] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5631 [pid 5630] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5081] close(3 [pid 5080] unlink("./95/binderfs" [pid 5079] getdents64(3, [pid 5077] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5631 attached [pid 5630] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5631] chdir("./89" [pid 5630] <... exit_group resumed>) = ? [pid 5081] rmdir("./94" [pid 5080] getdents64(3, [pid 5079] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5631] <... chdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] +++ exited with 0 +++ [pid 5081] mkdir("./95", 0777 [pid 5080] close(3 [pid 5079] rmdir("./91" [pid 5077] getdents64(3, [pid 5631] <... prctl resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5631] setpgid(0, 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] rmdir("./95" [pid 5079] mkdir("./92", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5632 attached [pid 5631] <... setpgid resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5632 [pid 5080] mkdir("./96", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5633 attached [pid 5632] chdir("./95" [pid 5631] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5631] write(3, "1000", 4 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5633 ./strace-static-x86_64: Process 5634 attached [pid 5633] chdir("./92" [pid 5632] <... chdir resumed>) = 0 [pid 5631] <... write resumed>) = 4 [pid 5077] lstat("./91/binderfs", [pid 5075] <... restart_syscall resumed>) = 0 [pid 5631] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5634 [pid 5631] <... close resumed>) = 0 [pid 5631] symlink("/dev/binderfs", "./binderfs" [pid 5633] <... chdir resumed>) = 0 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] <... symlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5632] <... prctl resumed>) = 0 [pid 5631] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] unlink("./91/binderfs" [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] setpgid(0, 0 [pid 5631] <... madvise resumed>) = 0 [pid 5634] chdir("./96" [pid 5633] <... prctl resumed>) = 0 [pid 5632] <... setpgid resumed>) = 0 [pid 5631] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... unlink resumed>) = 0 [pid 5634] <... chdir resumed>) = 0 [pid 5633] setpgid(0, 0 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5631] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... setpgid resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5631] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5634] <... prctl resumed>) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] write(3, "1000", 4 [pid 5631] <... write resumed>) = 1 [pid 5077] close(3 [pid 5075] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5634] setpgid(0, 0 [pid 5633] <... openat resumed>) = 3 [pid 5632] <... write resumed>) = 4 [pid 5631] write(3, "\x32\x00", 2 [pid 5077] <... close resumed>) = 0 [pid 5634] <... setpgid resumed>) = 0 [pid 5633] write(3, "1000", 4 [pid 5632] close(3 [pid 5077] rmdir("./91" [pid 5075] <... openat resumed>) = 3 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... write resumed>) = 4 [pid 5632] <... close resumed>) = 0 [pid 5631] <... write resumed>) = 2 [pid 5634] <... openat resumed>) = 3 [pid 5633] close(3 [pid 5632] symlink("/dev/binderfs", "./binderfs" [pid 5631] exit_group(0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] fstat(3, [pid 5634] write(3, "1000", 4 [pid 5633] <... close resumed>) = 0 [pid 5632] <... symlink resumed>) = 0 [pid 5631] <... exit_group resumed>) = ? [pid 5634] <... write resumed>) = 4 [pid 5633] symlink("/dev/binderfs", "./binderfs" [pid 5632] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] mkdir("./92", 0777 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5634] close(3) = 0 [pid 5632] <... madvise resumed>) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs" [pid 5632] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5634] <... symlink resumed>) = 0 [pid 5633] <... symlink resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5631] +++ exited with 0 +++ [pid 5634] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5633] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5632] write(3, "1", 1 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5634] <... madvise resumed>) = 0 [pid 5633] <... madvise resumed>) = 0 [pid 5632] <... write resumed>) = 1 ./strace-static-x86_64: Process 5635 attached [pid 5634] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5633] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5632] write(3, "\x32\x00", 2 [pid 5075] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] chdir("./92" [pid 5634] <... openat resumed>) = 3 [pid 5633] <... openat resumed>) = 3 [pid 5634] write(3, "1", 1 [pid 5635] <... chdir resumed>) = 0 [pid 5634] <... write resumed>) = 1 [pid 5633] write(3, "1", 1 [pid 5632] <... write resumed>) = 2 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5635 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5634] write(3, "\x32\x00", 2 [pid 5633] <... write resumed>) = 1 [pid 5632] exit_group(0 [pid 5635] <... prctl resumed>) = 0 [pid 5634] <... write resumed>) = 2 [pid 5633] write(3, "\x32\x00", 2 [pid 5632] <... exit_group resumed>) = ? [pid 5075] lstat("./85/binderfs", [pid 5633] <... write resumed>) = 2 [pid 5635] setpgid(0, 0 [pid 5634] exit_group(0 [pid 5633] exit_group(0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5635] <... setpgid resumed>) = 0 [pid 5634] <... exit_group resumed>) = ? [pid 5633] <... exit_group resumed>) = ? [pid 5076] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./85/binderfs" [pid 5634] +++ exited with 0 +++ [pid 5633] +++ exited with 0 +++ [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... unlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5635] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5635] write(3, "1000", 4 [pid 5081] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5635] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5635] close(3 [pid 5081] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5076] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5079] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5635] <... close resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./85" [pid 5635] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5076] lstat("./89/binderfs", [pid 5635] <... symlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] lstat("./96/binderfs", [pid 5079] fstat(3, [pid 5075] mkdir("./86", 0777 [pid 5635] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5076] unlink("./89/binderfs" [pid 5635] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] unlink("./96/binderfs" [pid 5079] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5635] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./95/binderfs", [pid 5080] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5635] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5080] getdents64(3, ./strace-static-x86_64: Process 5636 attached [pid 5635] write(3, "1", 1 [pid 5081] unlink("./95/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5636 [pid 5635] <... write resumed>) = 1 [pid 5635] write(3, "\x32\x00", 2 [pid 5636] chdir("./86" [pid 5635] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] close(3 [pid 5079] lstat("./92/binderfs", [pid 5076] close(3 [pid 5636] <... chdir resumed>) = 0 [pid 5635] exit_group(0 [pid 5081] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5635] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] rmdir("./96" [pid 5079] unlink("./92/binderfs" [pid 5076] rmdir("./89" [pid 5636] <... prctl resumed>) = 0 [pid 5635] +++ exited with 0 +++ [pid 5081] close(3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5080] mkdir("./97", 0777 [pid 5079] getdents64(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] mkdir("./90", 0777 [pid 5081] <... close resumed>) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5636] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5081] rmdir("./95" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5636] write(3, "1000", 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5636] <... write resumed>) = 4 [pid 5636] close(3 [pid 5079] rmdir("./92" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5636] <... close resumed>) = 0 [pid 5636] symlink("/dev/binderfs", "./binderfs" [pid 5077] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5636] <... symlink resumed>) = 0 [pid 5081] mkdir("./96", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5079] mkdir("./93", 0777 [pid 5077] fstat(3, [pid 5636] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5637 attached [pid 5636] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5637 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5638 [pid 5637] chdir("./97" [pid 5636] <... openat resumed>) = 3 [pid 5636] write(3, "1", 1) = 1 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5639 attached [pid 5637] <... chdir resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5639 ./strace-static-x86_64: Process 5638 attached [pid 5638] chdir("./90" [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] write(3, "\x32\x00", 2 [pid 5077] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5639] chdir("./96" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5640 [pid 5077] lstat("./92/binderfs", [pid 5638] <... chdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./92/binderfs" [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5640 attached ) = 0 [pid 5640] chdir("./93" [pid 5638] setpgid(0, 0 [pid 5077] <... unlink resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5640] <... chdir resumed>) = 0 [pid 5638] <... setpgid resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5640] <... prctl resumed>) = 0 [pid 5638] <... openat resumed>) = 3 [pid 5637] <... prctl resumed>) = 0 [pid 5077] rmdir("./92" [pid 5640] setpgid(0, 0 [pid 5638] write(3, "1000", 4 [pid 5637] setpgid(0, 0 [pid 5640] <... setpgid resumed>) = 0 [pid 5638] <... write resumed>) = 4 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5638] close(3 [pid 5637] <... setpgid resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5640] <... openat resumed>) = 3 [pid 5638] <... close resumed>) = 0 [pid 5640] write(3, "1000", 4 [pid 5639] <... chdir resumed>) = 0 [pid 5638] symlink("/dev/binderfs", "./binderfs" [pid 5077] mkdir("./93", 0777 [pid 5640] <... write resumed>) = 4 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5638] <... symlink resumed>) = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] <... write resumed>) = 2 [pid 5640] close(3 [pid 5639] <... prctl resumed>) = 0 [pid 5638] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5640] <... close resumed>) = 0 [pid 5639] setpgid(0, 0 [pid 5638] <... madvise resumed>) = 0 [pid 5637] <... openat resumed>) = 3 [pid 5636] exit_group(0 [pid 5077] <... mkdir resumed>) = 0 [pid 5640] symlink("/dev/binderfs", "./binderfs" [pid 5639] <... setpgid resumed>) = 0 [pid 5638] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5637] write(3, "1000", 4 [pid 5636] <... exit_group resumed>) = ? [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5640] <... symlink resumed>) = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5638] <... openat resumed>) = 3 [pid 5640] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5639] <... openat resumed>) = 3 [pid 5638] write(3, "1", 1 [pid 5640] <... madvise resumed>) = 0 [pid 5639] write(3, "1000", 4 [pid 5638] <... write resumed>) = 1 [pid 5637] <... write resumed>) = 4 [pid 5640] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5639] <... write resumed>) = 4 [pid 5638] write(3, "\x32\x00", 2 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5641 [pid 5637] close(3 [pid 5640] <... openat resumed>) = 3 [pid 5639] close(3 [pid 5638] <... write resumed>) = 2 [pid 5636] +++ exited with 0 +++ [pid 5637] <... close resumed>) = 0 [pid 5640] write(3, "1", 1 [pid 5639] <... close resumed>) = 0 [pid 5638] exit_group(0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5641 attached [pid 5640] <... write resumed>) = 1 [pid 5639] symlink("/dev/binderfs", "./binderfs" [pid 5638] <... exit_group resumed>) = ? [pid 5637] symlink("/dev/binderfs", "./binderfs" [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5641] chdir("./93" [pid 5640] write(3, "\x32\x00", 2 [pid 5639] <... symlink resumed>) = 0 [pid 5638] +++ exited with 0 +++ [pid 5641] <... chdir resumed>) = 0 [pid 5640] <... write resumed>) = 2 [pid 5639] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5637] <... symlink resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5640] exit_group(0 [pid 5639] <... madvise resumed>) = 0 [pid 5637] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5638, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5641] <... prctl resumed>) = 0 [pid 5640] <... exit_group resumed>) = ? [pid 5639] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5641] setpgid(0, 0 [pid 5640] +++ exited with 0 +++ [pid 5639] <... openat resumed>) = 3 [pid 5637] <... madvise resumed>) = 0 [pid 5076] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] <... setpgid resumed>) = 0 [pid 5639] write(3, "1", 1 [pid 5637] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] <... write resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] <... openat resumed>) = 3 [pid 5639] write(3, "\x32\x00", 2 [pid 5637] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] write(3, "1000", 4 [pid 5637] write(3, "1", 1 [pid 5076] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5641] <... write resumed>) = 4 [pid 5639] <... write resumed>) = 2 [pid 5637] <... write resumed>) = 1 [pid 5079] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5641] close(3 [pid 5639] exit_group(0 [pid 5637] write(3, "\x32\x00", 2 [pid 5075] <... openat resumed>) = 3 [pid 5641] <... close resumed>) = 0 [pid 5639] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5641] symlink("/dev/binderfs", "./binderfs" [pid 5639] +++ exited with 0 +++ [pid 5079] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] getdents64(3, [pid 5075] fstat(3, [pid 5641] <... symlink resumed>) = 0 [pid 5637] <... write resumed>) = 2 [pid 5641] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... openat resumed>) = 3 [pid 5641] <... madvise resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] fstat(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5637] exit_group(0 [pid 5641] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5641] <... openat resumed>) = 3 [pid 5637] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5076] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5641] write(3, "1", 1 [pid 5081] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5641] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5641] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5079] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./90/binderfs", [pid 5075] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] <... write resumed>) = 2 [pid 5637] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] exit_group(0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5641] <... exit_group resumed>) = ? [pid 5079] lstat("./93/binderfs", [pid 5076] unlink("./90/binderfs" [pid 5075] lstat("./86/binderfs", [pid 5641] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] unlink("./93/binderfs" [pid 5076] getdents64(3, [pid 5075] unlink("./86/binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... unlink resumed>) = 0 [pid 5081] lstat("./96/binderfs", [pid 5080] <... openat resumed>) = 3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] getdents64(3, [pid 5081] unlink("./96/binderfs" [pid 5080] fstat(3, [pid 5079] getdents64(3, [pid 5076] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] close(3 [pid 5081] getdents64(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./90" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5077] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] mkdir("./91", 0777 [pid 5075] rmdir("./86" [pid 5081] <... close resumed>) = 0 [pid 5080] lstat("./97/binderfs", [pid 5079] rmdir("./93" [pid 5077] fstat(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5081] rmdir("./96" [pid 5080] unlink("./97/binderfs" [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] mkdir("./87", 0777 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] mkdir("./94", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5643 attached [pid 5081] mkdir("./97", 0777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5643 [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./97") = 0 [pid 5080] mkdir("./98", 0777 [pid 5643] chdir("./87" [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] lstat("./93/binderfs", [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5642 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5645 ./strace-static-x86_64: Process 5644 attached [pid 5644] chdir("./94" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5644 [pid 5077] unlink("./93/binderfs" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5646 [pid 5077] <... unlink resumed>) = 0 [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5642 attached 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5644] <... chdir resumed>) = 0 [pid 5642] chdir("./91" [pid 5077] close(3 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... close resumed>) = 0 ./strace-static-x86_64: Process 5645 attached [pid 5644] <... prctl resumed>) = 0 [pid 5642] <... chdir resumed>) = 0 [pid 5077] rmdir("./93" [pid 5645] chdir("./98" [pid 5644] setpgid(0, 0 [pid 5643] <... chdir resumed>) = 0 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] <... chdir resumed>) = 0 [pid 5644] <... setpgid resumed>) = 0 [pid 5642] <... prctl resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5646 attached [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] setpgid(0, 0 [pid 5077] mkdir("./94", 0777 [pid 5646] chdir("./97" [pid 5645] <... prctl resumed>) = 0 [pid 5644] <... openat resumed>) = 3 [pid 5642] <... setpgid resumed>) = 0 [pid 5645] setpgid(0, 0 [pid 5644] write(3, "1000", 4 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... mkdir resumed>) = 0 [pid 5645] <... setpgid resumed>) = 0 [pid 5644] <... write resumed>) = 4 [pid 5643] <... prctl resumed>) = 0 [pid 5642] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5644] close(3 [pid 5643] setpgid(0, 0 [pid 5642] write(3, "1000", 4 [pid 5645] <... openat resumed>) = 3 [pid 5644] <... close resumed>) = 0 [pid 5642] <... write resumed>) = 4 [pid 5645] write(3, "1000", 4 [pid 5644] symlink("/dev/binderfs", "./binderfs" [pid 5643] <... setpgid resumed>) = 0 [pid 5642] close(3 [pid 5646] <... chdir resumed>) = 0 [pid 5645] <... write resumed>) = 4 [pid 5644] <... symlink resumed>) = 0 [pid 5642] <... close resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5647 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] close(3 [pid 5644] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5647 attached [pid 5646] <... prctl resumed>) = 0 [pid 5645] <... close resumed>) = 0 [pid 5644] <... madvise resumed>) = 0 [pid 5643] <... openat resumed>) = 3 [pid 5642] <... symlink resumed>) = 0 [pid 5647] chdir("./94" [pid 5646] setpgid(0, 0 [pid 5645] symlink("/dev/binderfs", "./binderfs" [pid 5644] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5643] write(3, "1000", 4 [pid 5642] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5647] <... chdir resumed>) = 0 [pid 5646] <... setpgid resumed>) = 0 [pid 5645] <... symlink resumed>) = 0 [pid 5644] <... openat resumed>) = 3 [pid 5643] <... write resumed>) = 4 [pid 5642] <... madvise resumed>) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5645] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5644] write(3, "1", 1 [pid 5643] close(3 [pid 5642] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5647] <... prctl resumed>) = 0 [pid 5646] <... openat resumed>) = 3 [pid 5645] <... madvise resumed>) = 0 [pid 5644] <... write resumed>) = 1 [pid 5643] <... close resumed>) = 0 [pid 5642] <... openat resumed>) = 3 [pid 5647] setpgid(0, 0 [pid 5646] write(3, "1000", 4 [pid 5645] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5644] write(3, "\x32\x00", 2 [pid 5643] symlink("/dev/binderfs", "./binderfs" [pid 5642] write(3, "1", 1 [pid 5647] <... setpgid resumed>) = 0 [pid 5646] <... write resumed>) = 4 [pid 5645] <... openat resumed>) = 3 [pid 5644] <... write resumed>) = 2 [pid 5642] <... write resumed>) = 1 [pid 5643] <... symlink resumed>) = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] close(3 [pid 5645] write(3, "1", 1 [pid 5644] exit_group(0 [pid 5643] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5642] write(3, "\x32\x00", 2 [pid 5647] <... openat resumed>) = 3 [pid 5646] <... close resumed>) = 0 [pid 5645] <... write resumed>) = 1 [pid 5644] <... exit_group resumed>) = ? [pid 5643] <... madvise resumed>) = 0 [pid 5647] write(3, "1000", 4 [pid 5646] symlink("/dev/binderfs", "./binderfs" [pid 5645] write(3, "\x32\x00", 2 [pid 5643] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5647] <... write resumed>) = 4 [pid 5646] <... symlink resumed>) = 0 [pid 5644] +++ exited with 0 +++ [pid 5643] <... openat resumed>) = 3 [pid 5647] close(3 [pid 5646] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5645] <... write resumed>) = 2 [pid 5643] write(3, "1", 1 [pid 5642] <... write resumed>) = 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5647] <... close resumed>) = 0 [pid 5646] <... madvise resumed>) = 0 [pid 5645] exit_group(0 [pid 5643] <... write resumed>) = 1 [pid 5642] exit_group(0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5647] symlink("/dev/binderfs", "./binderfs" [pid 5646] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5645] <... exit_group resumed>) = ? [pid 5643] write(3, "\x32\x00", 2 [pid 5642] <... exit_group resumed>) = ? [pid 5079] <... restart_syscall resumed>) = 0 [pid 5647] <... symlink resumed>) = 0 [pid 5646] <... openat resumed>) = 3 [pid 5645] +++ exited with 0 +++ [pid 5647] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5646] write(3, "1", 1 [pid 5642] +++ exited with 0 +++ [pid 5647] <... madvise resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5647] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5647] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5647] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... restart_syscall resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5080] fstat(3, [pid 5079] <... openat resumed>) = 3 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./98/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] unlink("./98/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./98") = 0 [pid 5080] mkdir("./99", 0777) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d1f5d0) = 5648 ./strace-static-x86_64: Process 5648 attached [pid 5648] chdir("./99") = 0 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] <... write resumed>) = 1 [pid 5646] <... write resumed>) = 1 [pid 5647] write(3, "\x32\x00", 2 [pid 5646] write(3, "\x32\x00", 2 [pid 5643] <... write resumed>) = 2 [pid 5079] lstat("./94/binderfs", [pid 5076] fstat(3, [pid 5647] <... write resumed>) = 2 [pid 5646] <... write resumed>) = 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5646] exit_group(0 [pid 5076] getdents64(3, [pid 5646] <... exit_group resumed>) = ? [pid 5079] unlink("./94/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5643] exit_group(0 [pid 5647] exit_group(0) = ? [pid 5646] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5643] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] getdents64(3, [pid 5076] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5647] +++ exited with 0 +++ [pid 5079] close(3 [pid 5076] lstat("./91/binderfs", [pid 5648] <... prctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5648] setpgid(0, 0 [pid 5081] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./94" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5648] <... setpgid resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... rmdir resumed>) = 0 [pid 5076] unlink("./91/binderfs" [pid 5081] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5648] <... openat resumed>) = 3 [pid 5079] mkdir("./95", 0777 [pid 5077] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5648] write(3, "1000", 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5648] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5648] close(3) = 0 [pid 5648] symlink("/dev/binderfs", "./binderfs" [pid 5081] fstat(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] getdents64(3, [pid 5648] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 3 [pid 5648] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5643] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5648] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5648] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5076] close(3 [pid 5648] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5648] write(3, "1", 1 [pid 5081] lstat("./97/binderfs", [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5649 [pid 5077] getdents64(3, [pid 5076] rmdir("./91" [pid 5648] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5648] write(3, "\x32\x00", 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5648] <... write resumed>) = 2 [pid 5081] unlink("./97/binderfs" [pid 5077] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5648] exit_group(0) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5648] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./92", 0777./strace-static-x86_64: Process 5649 attached [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5648, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] lstat("./94/binderfs", [pid 5649] chdir("./95") = 0 [pid 5081] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... close resumed>) = 0 [pid 5080] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] unlink("./94/binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5649] <... prctl resumed>) = 0 [pid 5081] rmdir("./97" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5649] setpgid(0, 0 [pid 5080] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5649] <... setpgid resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... rmdir resumed>) = 0 [pid 5080] fstat(3, [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5650 attached [pid 5649] <... openat resumed>) = 3 [pid 5081] mkdir("./98", 0777 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] fstat(3, [pid 5649] write(3, "1000", 4 [pid 5080] getdents64(3, [pid 5649] <... write resumed>) = 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5649] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5650 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5649] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5649] symlink("/dev/binderfs", "./binderfs" [pid 5080] lstat("./99/binderfs", [pid 5649] <... symlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5649] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5651 [pid 5080] unlink("./99/binderfs" [pid 5077] rmdir("./94" [pid 5649] <... madvise resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5649] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] getdents64(3, ./strace-static-x86_64: Process 5651 attached [pid 5649] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] chdir("./98" [pid 5650] chdir("./92" [pid 5649] write(3, "1", 1 [pid 5080] close(3 [pid 5077] mkdir("./95", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5651] <... chdir resumed>) = 0 [pid 5650] <... chdir resumed>) = 0 [pid 5649] <... write resumed>) = 1 [pid 5080] <... close resumed>) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5649] write(3, "\x32\x00", 2 [pid 5080] rmdir("./99" [pid 5077] <... mkdir resumed>) = 0 [pid 5075] lstat("./87/binderfs", [pid 5651] <... prctl resumed>) = 0 [pid 5650] <... prctl resumed>) = 0 [pid 5649] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5651] setpgid(0, 0 [pid 5650] setpgid(0, 0 [pid 5649] exit_group(0 [pid 5080] mkdir("./100", 0777 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5651] <... setpgid resumed>) = 0 [pid 5650] <... setpgid resumed>) = 0 [pid 5649] <... exit_group resumed>) = ? [pid 5080] <... mkdir resumed>) = 0 [pid 5075] unlink("./87/binderfs" [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] +++ exited with 0 +++ [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5652 [pid 5651] <... openat resumed>) = 3 [pid 5650] <... openat resumed>) = 3 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5652 attached [pid 5651] write(3, "1000", 4 [pid 5650] write(3, "1000", 4 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5653 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] getdents64(3, [pid 5652] chdir("./95" [pid 5651] <... write resumed>) = 4 [pid 5650] <... write resumed>) = 4 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5652] <... chdir resumed>) = 0 [pid 5651] close(3 [pid 5650] close(3 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... close resumed>) = 0 [pid 5650] <... close resumed>) = 0 [pid 5075] close(3 [pid 5652] <... prctl resumed>) = 0 [pid 5651] symlink("/dev/binderfs", "./binderfs" [pid 5650] symlink("/dev/binderfs", "./binderfs" [pid 5652] setpgid(0, 0 [pid 5651] <... symlink resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5652] <... setpgid resumed>) = 0 [pid 5651] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5650] <... symlink resumed>) = 0 [pid 5079] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./87"./strace-static-x86_64: Process 5653 attached [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] <... madvise resumed>) = 0 [pid 5650] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] <... openat resumed>) = 3 [pid 5651] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... rmdir resumed>) = 0 [pid 5653] chdir("./100" [pid 5652] write(3, "1000", 4 [pid 5651] <... openat resumed>) = 3 [pid 5650] <... madvise resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./88", 0777 [pid 5652] <... write resumed>) = 4 [pid 5651] write(3, "1", 1 [pid 5650] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5652] close(3 [pid 5651] <... write resumed>) = 1 [pid 5079] <... openat resumed>) = 3 [pid 5652] <... close resumed>) = 0 [pid 5651] write(3, "\x32\x00", 2 [pid 5075] <... mkdir resumed>) = 0 [pid 5653] <... chdir resumed>) = 0 [pid 5652] symlink("/dev/binderfs", "./binderfs" [pid 5651] <... write resumed>) = 2 [pid 5650] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5652] <... symlink resumed>) = 0 [pid 5651] exit_group(0 [pid 5650] write(3, "1", 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5652] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5651] <... exit_group resumed>) = ? [pid 5653] <... prctl resumed>) = 0 [pid 5652] <... madvise resumed>) = 0 [pid 5651] +++ exited with 0 +++ [pid 5650] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5653] setpgid(0, 0 [pid 5652] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5650] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5653] <... setpgid resumed>) = 0 [pid 5652] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5654 [pid 5652] write(3, "1", 1./strace-static-x86_64: Process 5654 attached ) = 1 [pid 5650] <... write resumed>) = 2 [pid 5079] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] chdir("./88" [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5652] write(3, "\x32\x00", 2 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] <... chdir resumed>) = 0 [pid 5653] <... openat resumed>) = 3 [pid 5652] <... write resumed>) = 2 [pid 5650] exit_group(0 [pid 5079] lstat("./95/binderfs", [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] write(3, "1000", 4 [pid 5652] exit_group(0 [pid 5650] <... exit_group resumed>) = ? [pid 5654] <... prctl resumed>) = 0 [pid 5653] <... write resumed>) = 4 [pid 5652] <... exit_group resumed>) = ? [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5654] setpgid(0, 0 [pid 5653] close(3 [pid 5652] +++ exited with 0 +++ [pid 5650] +++ exited with 0 +++ [pid 5081] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] unlink("./95/binderfs" [pid 5654] <... setpgid resumed>) = 0 [pid 5653] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] symlink("/dev/binderfs", "./binderfs" [pid 5081] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5654] <... openat resumed>) = 3 [pid 5654] write(3, "1000", 4 [pid 5653] <... symlink resumed>) = 0 [pid 5654] <... write resumed>) = 4 [pid 5653] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5654] close(3) = 0 [pid 5653] <... madvise resumed>) = 0 [pid 5081] fstat(3, [pid 5654] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5654] <... symlink resumed>) = 0 [pid 5653] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3 [pid 5654] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5653] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5654] <... madvise resumed>) = 0 [pid 5654] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5653] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] rmdir("./95" [pid 5653] <... write resumed>) = 1 [pid 5081] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... rmdir resumed>) = 0 [pid 5653] write(3, "\x32\x00", 2 [pid 5081] lstat("./98/binderfs", [pid 5079] mkdir("./96", 0777 [pid 5077] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... openat resumed>) = 3 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] write(3, "1", 1 [pid 5653] <... write resumed>) = 2 [pid 5081] unlink("./98/binderfs" [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5654] <... write resumed>) = 1 [pid 5653] exit_group(0) = ? [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5654] write(3, "\x32\x00", 2 [pid 5653] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5081] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] getdents64(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5081] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5655 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... close resumed>) = 0 [pid 5080] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... write resumed>) = 2 [pid 5081] rmdir("./98" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5655 attached [pid 5080] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5655] chdir("./96" [pid 5654] exit_group(0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5077] lstat("./95/binderfs", [pid 5076] lstat("./92/binderfs", [pid 5655] <... chdir resumed>) = 0 [pid 5654] <... exit_group resumed>) = ? [pid 5081] mkdir("./99", 0777 [pid 5080] fstat(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5655] <... prctl resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] unlink("./95/binderfs" [pid 5655] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] unlink("./92/binderfs" [pid 5655] <... setpgid resumed>) = 0 [pid 5080] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5655] <... openat resumed>) = 3 [pid 5080] lstat("./100/binderfs", [pid 5655] write(3, "1000", 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5655] <... write resumed>) = 4 [pid 5080] unlink("./100/binderfs" [pid 5655] close(3 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5655] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5655] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5656 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5076] close(3 [pid 5655] <... symlink resumed>) = 0 [pid 5080] close(3 [pid 5077] <... close resumed>) = 0 [pid 5655] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5655] <... madvise resumed>) = 0 [pid 5080] rmdir("./100" [pid 5077] rmdir("./95" [pid 5076] rmdir("./92" [pid 5655] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5654] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5655] <... openat resumed>) = 3 [pid 5080] mkdir("./101", 0777 [pid 5655] write(3, "1", 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5656 attached [pid 5655] <... write resumed>) = 1 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] mkdir("./96", 0777 [pid 5076] mkdir("./93", 0777./strace-static-x86_64: Process 5657 attached [pid 5656] chdir("./99" [pid 5655] write(3, "\x32\x00", 2 [pid 5656] <... chdir resumed>) = 0 [pid 5655] <... write resumed>) = 2 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5657 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5655] exit_group(0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5656] <... prctl resumed>) = 0 [pid 5655] <... exit_group resumed>) = ? [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] chdir("./101" [pid 5656] setpgid(0, 0 [pid 5655] +++ exited with 0 +++ ./strace-static-x86_64: Process 5659 attached ./strace-static-x86_64: Process 5658 attached [pid 5656] <... setpgid resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5658 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5659 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5658] chdir("./96" [pid 5657] <... chdir resumed>) = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... openat resumed>) = 3 [pid 5659] chdir("./93" [pid 5658] <... chdir resumed>) = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5656] <... openat resumed>) = 3 [pid 5079] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5659] <... chdir resumed>) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] <... prctl resumed>) = 0 [pid 5656] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] <... prctl resumed>) = 0 [pid 5657] setpgid(0, 0 [pid 5656] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5659] <... prctl resumed>) = 0 [pid 5658] setpgid(0, 0 [pid 5657] <... setpgid resumed>) = 0 [pid 5656] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5659] setpgid(0, 0 [pid 5658] <... setpgid resumed>) = 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5656] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5659] <... setpgid resumed>) = 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5657] <... openat resumed>) = 3 [pid 5656] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] <... openat resumed>) = 3 [pid 5657] write(3, "1000", 4 [pid 5656] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5659] <... openat resumed>) = 3 [pid 5658] write(3, "1000", 4 [pid 5657] <... write resumed>) = 4 [pid 5656] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5659] write(3, "1000", 4 [pid 5658] <... write resumed>) = 4 [pid 5657] close(3 [pid 5656] <... madvise resumed>) = 0 [pid 5079] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./88/binderfs", [pid 5659] <... write resumed>) = 4 [pid 5658] close(3 [pid 5657] <... close resumed>) = 0 [pid 5656] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5659] close(3 [pid 5658] <... close resumed>) = 0 [pid 5657] symlink("/dev/binderfs", "./binderfs" [pid 5656] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5659] <... close resumed>) = 0 [pid 5658] symlink("/dev/binderfs", "./binderfs" [pid 5657] <... symlink resumed>) = 0 [pid 5656] write(3, "1", 1 [pid 5079] lstat("./96/binderfs", [pid 5075] unlink("./88/binderfs" [pid 5659] symlink("/dev/binderfs", "./binderfs" [pid 5658] <... symlink resumed>) = 0 [pid 5657] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5656] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5659] <... symlink resumed>) = 0 [pid 5658] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5657] <... madvise resumed>) = 0 [pid 5656] write(3, "\x32\x00", 2 [pid 5079] unlink("./96/binderfs" [pid 5075] getdents64(3, [pid 5659] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5658] <... madvise resumed>) = 0 [pid 5657] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5659] <... madvise resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] close(3 [pid 5659] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5659] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5075] rmdir("./88" [pid 5659] write(3, "1", 1 [pid 5658] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5657] <... openat resumed>) = 3 [pid 5656] <... write resumed>) = 2 [pid 5079] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5659] <... write resumed>) = 1 [pid 5658] <... openat resumed>) = 3 [pid 5657] write(3, "1", 1 [pid 5656] exit_group(0 [pid 5079] rmdir("./96" [pid 5075] mkdir("./89", 0777 [pid 5659] write(3, "\x32\x00", 2 [pid 5658] write(3, "1", 1 [pid 5657] <... write resumed>) = 1 [pid 5656] <... exit_group resumed>) = ? [pid 5658] <... write resumed>) = 1 [pid 5657] write(3, "\x32\x00", 2 [pid 5656] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5659] <... write resumed>) = 2 [pid 5658] write(3, "\x32\x00", 2 [pid 5657] <... write resumed>) = 2 [pid 5079] mkdir("./97", 0777 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5659] exit_group(0 [pid 5658] <... write resumed>) = 2 [pid 5657] exit_group(0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5658] exit_group(0 [pid 5657] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5660 attached [pid 5659] <... exit_group resumed>) = ? [pid 5658] <... exit_group resumed>) = ? [pid 5657] +++ exited with 0 +++ [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5660] chdir("./89" [pid 5659] +++ exited with 0 +++ [pid 5658] +++ exited with 0 +++ [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5660 [pid 5660] <... chdir resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5661 ./strace-static-x86_64: Process 5661 attached [pid 5660] <... prctl resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5660] setpgid(0, 0 [pid 5081] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5661] chdir("./97" [pid 5660] <... setpgid resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... restart_syscall resumed>) = 0 [pid 5661] <... chdir resumed>) = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5660] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5661] <... prctl resumed>) = 0 [pid 5660] write(3, "1000", 4 [pid 5081] fstat(3, [pid 5080] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5661] setpgid(0, 0 [pid 5660] <... write resumed>) = 4 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5661] <... setpgid resumed>) = 0 [pid 5660] close(3 [pid 5081] getdents64(3, [pid 5080] fstat(3, [pid 5077] <... openat resumed>) = 3 [pid 5076] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] fstat(3, [pid 5661] <... openat resumed>) = 3 [pid 5660] symlink("/dev/binderfs", "./binderfs" [pid 5081] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5661] write(3, "1000", 4 [pid 5660] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] getdents64(3, [pid 5076] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5661] <... write resumed>) = 4 [pid 5660] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] lstat("./99/binderfs", [pid 5080] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5661] close(3 [pid 5660] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... openat resumed>) = 3 [pid 5661] <... close resumed>) = 0 [pid 5660] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./99/binderfs" [pid 5080] lstat("./101/binderfs", [pid 5077] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5661] symlink("/dev/binderfs", "./binderfs" [pid 5660] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5661] <... symlink resumed>) = 0 [pid 5660] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5080] unlink("./101/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5661] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5660] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] lstat("./96/binderfs", [pid 5076] getdents64(3, [pid 5661] <... madvise resumed>) = 0 [pid 5660] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5661] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5660] <... write resumed>) = 2 [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5661] <... openat resumed>) = 3 [pid 5660] exit_group(0 [pid 5081] rmdir("./99" [pid 5080] close(3 [pid 5077] unlink("./96/binderfs" [pid 5076] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5661] write(3, "1", 1 [pid 5660] <... exit_group resumed>) = ? [pid 5080] <... close resumed>) = 0 [pid 5661] <... write resumed>) = 1 [pid 5660] +++ exited with 0 +++ [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./101" [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5661] write(3, "\x32\x00", 2 [pid 5081] mkdir("./100", 0777 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] lstat("./93/binderfs", [pid 5080] mkdir("./102", 0777 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3 [pid 5076] unlink("./93/binderfs" [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... close resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5662 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] rmdir("./96" [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5663 [pid 5076] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] mkdir("./97", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5076] rmdir("./93"./strace-static-x86_64: Process 5663 attached [pid 5663] chdir("./100") = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5663] setpgid(0, 0) = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5663] write(3, "1000", 4 [pid 5076] mkdir("./94", 0777 [pid 5075] fstat(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5664 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5663] <... write resumed>) = 4 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5665 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5664 attached ./strace-static-x86_64: Process 5662 attached ./strace-static-x86_64: Process 5665 attached [pid 5075] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] chdir("./97" [pid 5663] <... close resumed>) = 0 [pid 5661] <... write resumed>) = 2 [pid 5075] lstat("./89/binderfs", [pid 5664] <... chdir resumed>) = 0 [pid 5663] symlink("/dev/binderfs", "./binderfs" [pid 5661] exit_group(0 [pid 5665] chdir("./94" [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5663] <... symlink resumed>) = 0 [pid 5662] chdir("./102" [pid 5661] <... exit_group resumed>) = ? [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5665] <... chdir resumed>) = 0 [pid 5664] <... prctl resumed>) = 0 [pid 5662] <... chdir resumed>) = 0 [pid 5075] unlink("./89/binderfs" [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5664] setpgid(0, 0 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] <... prctl resumed>) = 0 [pid 5664] <... setpgid resumed>) = 0 [pid 5663] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5662] <... prctl resumed>) = 0 [pid 5661] +++ exited with 0 +++ [pid 5075] <... unlink resumed>) = 0 [pid 5665] setpgid(0, 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5663] <... madvise resumed>) = 0 [pid 5663] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] getdents64(3, [pid 5663] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5663] write(3, "1", 1 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... setpgid resumed>) = 0 [pid 5664] <... openat resumed>) = 3 [pid 5663] <... write resumed>) = 1 [pid 5662] setpgid(0, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5663] write(3, "\x32\x00", 2 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5664] write(3, "1000", 4 [pid 5663] <... write resumed>) = 2 [pid 5662] <... setpgid resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5664] <... write resumed>) = 4 [pid 5663] exit_group(0) = ? [pid 5079] <... openat resumed>) = 3 [pid 5075] rmdir("./89" [pid 5665] <... openat resumed>) = 3 [pid 5664] close(3 [pid 5663] +++ exited with 0 +++ [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] fstat(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5664] <... close resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] mkdir("./90", 0777 [pid 5664] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5665] write(3, "1000", 4) = 4 [pid 5075] <... mkdir resumed>) = 0 [pid 5081] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] close(3) = 0 [pid 5665] symlink("/dev/binderfs", "./binderfs" [pid 5081] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5665] <... symlink resumed>) = 0 [pid 5664] <... symlink resumed>) = 0 [pid 5662] <... openat resumed>) = 3 [pid 5665] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5664] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5662] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5079] lstat("./97/binderfs", [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5666 [pid 5665] <... madvise resumed>) = 0 [pid 5662] <... write resumed>) = 4 [pid 5081] fstat(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5665] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5664] <... madvise resumed>) = 0 [pid 5662] close(3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] unlink("./97/binderfs" [pid 5665] <... openat resumed>) = 3 [pid 5664] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5662] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5665] write(3, "1", 1 [pid 5664] <... openat resumed>) = 3 [pid 5662] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5666 attached [pid 5665] <... write resumed>) = 1 [pid 5081] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5666] chdir("./90" [pid 5665] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5666] <... chdir resumed>) = 0 [pid 5665] <... write resumed>) = 2 [pid 5664] write(3, "1", 1 [pid 5662] <... symlink resumed>) = 0 [pid 5081] lstat("./100/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] exit_group(0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5666] <... prctl resumed>) = 0 [pid 5665] <... exit_group resumed>) = ? [pid 5081] unlink("./100/binderfs" [pid 5079] close(3 [pid 5662] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5666] setpgid(0, 0 [pid 5665] +++ exited with 0 +++ [pid 5664] <... write resumed>) = 1 [pid 5666] <... setpgid resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5664] write(3, "\x32\x00", 2 [pid 5662] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] rmdir("./97" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5666] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5666] write(3, "1000", 4) = 4 [pid 5666] close(3) = 0 [pid 5666] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5666] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5666] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] close(3 [pid 5666] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5666] <... write resumed>) = 1 [pid 5081] rmdir("./100" [pid 5666] write(3, "\x32\x00", 2 [pid 5079] mkdir("./98", 0777 [pid 5076] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... write resumed>) = 2 [pid 5662] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] exit_group(0 [pid 5081] mkdir("./101", 0777 [pid 5076] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5664] <... exit_group resumed>) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5664] +++ exited with 0 +++ [pid 5662] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] fstat(3, [pid 5666] <... write resumed>) = 2 [pid 5666] exit_group(0) = ? [pid 5666] +++ exited with 0 +++ [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5662] write(3, "1", 1 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5667 [pid 5076] getdents64(3, [pid 5077] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5077] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] lstat("./94/binderfs", [pid 5662] <... write resumed>) = 1 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] unlink("./94/binderfs" [pid 5075] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5667 attached [pid 5667] chdir("./101" [pid 5662] write(3, "\x32\x00", 2 [pid 5077] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5667] <... chdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] lstat("./97/binderfs", [pid 5076] getdents64(3, [pid 5667] <... prctl resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5667] setpgid(0, 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] fstat(3, [pid 5667] <... setpgid resumed>) = 0 [pid 5077] unlink("./97/binderfs" [pid 5076] close(3 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5662] <... write resumed>) = 2 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5668 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5667] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5667] write(3, "1000", 4 [pid 5077] getdents64(3, [pid 5076] rmdir("./94" [pid 5667] <... write resumed>) = 4 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5667] close(3./strace-static-x86_64: Process 5668 attached ) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5668] chdir("./98" [pid 5667] symlink("/dev/binderfs", "./binderfs" [pid 5077] close(3 [pid 5076] mkdir("./95", 0777 [pid 5075] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] <... chdir resumed>) = 0 [pid 5667] <... symlink resumed>) = 0 [pid 5662] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5667] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] rmdir("./97" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5668] <... prctl resumed>) = 0 [pid 5667] <... madvise resumed>) = 0 [pid 5662] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5668] setpgid(0, 0 [pid 5667] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5668] <... setpgid resumed>) = 0 [pid 5667] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] lstat("./90/binderfs", [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5667] write(3, "1", 1 [pid 5077] mkdir("./98", 0777 [pid 5668] <... openat resumed>) = 3 [pid 5667] <... write resumed>) = 1 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5668] write(3, "1000", 4 [pid 5667] write(3, "\x32\x00", 2 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] unlink("./90/binderfs" [pid 5668] <... write resumed>) = 4 [pid 5667] <... write resumed>) = 2 [pid 5662] +++ exited with 0 +++ [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5669 [pid 5668] close(3 [pid 5667] exit_group(0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... unlink resumed>) = 0 [pid 5668] <... close resumed>) = 0 [pid 5667] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5670 attached ./strace-static-x86_64: Process 5669 attached [pid 5668] symlink("/dev/binderfs", "./binderfs" [pid 5667] +++ exited with 0 +++ [pid 5075] getdents64(3, [pid 5670] chdir("./98" [pid 5669] chdir("./95" [pid 5668] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5670 [pid 5669] <... chdir resumed>) = 0 [pid 5668] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5668] <... madvise resumed>) = 0 [pid 5669] <... prctl resumed>) = 0 [pid 5668] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] close(3 [pid 5670] <... chdir resumed>) = 0 [pid 5669] setpgid(0, 0 [pid 5668] <... openat resumed>) = 3 [pid 5669] <... setpgid resumed>) = 0 [pid 5668] write(3, "1", 1 [pid 5081] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... close resumed>) = 0 [pid 5670] <... prctl resumed>) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] rmdir("./90" [pid 5670] setpgid(0, 0 [pid 5669] <... openat resumed>) = 3 [pid 5668] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5670] <... setpgid resumed>) = 0 [pid 5669] write(3, "1000", 4 [pid 5668] <... write resumed>) = 2 [pid 5080] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5669] <... write resumed>) = 4 [pid 5668] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5670] <... openat resumed>) = 3 [pid 5669] close(3 [pid 5668] <... exit_group resumed>) = ? [pid 5080] <... openat resumed>) = 3 [pid 5075] mkdir("./91", 0777 [pid 5670] write(3, "1000", 4 [pid 5669] <... close resumed>) = 0 [pid 5668] +++ exited with 0 +++ [pid 5081] fstat(3, [pid 5080] fstat(3, [pid 5669] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5670] <... write resumed>) = 4 [pid 5669] <... symlink resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5670] close(3 [pid 5669] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] getdents64(3, [pid 5669] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5671 attached [pid 5670] <... close resumed>) = 0 [pid 5669] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5671] chdir("./91" [pid 5670] symlink("/dev/binderfs", "./binderfs" [pid 5669] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5671 [pid 5671] <... chdir resumed>) = 0 [pid 5670] <... symlink resumed>) = 0 [pid 5669] write(3, "1", 1 [pid 5081] lstat("./101/binderfs", [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5669] <... write resumed>) = 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5669] write(3, "\x32\x00", 2 [pid 5080] lstat("./102/binderfs", [pid 5671] <... prctl resumed>) = 0 [pid 5670] <... madvise resumed>) = 0 [pid 5669] <... write resumed>) = 2 [pid 5081] unlink("./101/binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5669] exit_group(0) = ? [pid 5671] setpgid(0, 0 [pid 5670] <... openat resumed>) = 3 [pid 5669] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5080] unlink("./102/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5671] <... setpgid resumed>) = 0 [pid 5670] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5080] <... unlink resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5670] <... write resumed>) = 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... openat resumed>) = 3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5081] <... close resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5670] write(3, "\x32\x00", 2 [pid 5081] rmdir("./101" [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] rmdir("./102" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5671] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5671] write(3, "1000", 4) = 4 [pid 5671] close(3) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5671] symlink("/dev/binderfs", "./binderfs" [pid 5081] mkdir("./102", 0777 [pid 5079] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] mkdir("./103", 0777 [pid 5671] <... symlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5671] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5671] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] lstat("./98/binderfs", [pid 5671] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5671] write(3, "1", 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] fstat(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] unlink("./98/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5673 attached ./strace-static-x86_64: Process 5672 attached [pid 5671] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5672] chdir("./102" [pid 5671] write(3, "\x32\x00", 2 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5672 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5673 [pid 5079] close(3 [pid 5076] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] chdir("./103" [pid 5672] <... chdir resumed>) = 0 [pid 5671] <... write resumed>) = 2 [pid 5079] <... close resumed>) = 0 [pid 5673] <... chdir resumed>) = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5671] exit_group(0 [pid 5670] <... write resumed>) = 2 [pid 5079] rmdir("./98" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5672] <... prctl resumed>) = 0 [pid 5671] <... exit_group resumed>) = ? [pid 5079] <... rmdir resumed>) = 0 [pid 5076] lstat("./95/binderfs", [pid 5079] mkdir("./99", 0777 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5670] exit_group(0) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5076] unlink("./95/binderfs" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5670] +++ exited with 0 +++ [pid 5076] <... unlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5674 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./95" [pid 5673] <... prctl resumed>) = 0 [pid 5672] setpgid(0, 0 [pid 5671] +++ exited with 0 +++ [pid 5673] setpgid(0, 0 [pid 5672] <... setpgid resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5673] <... setpgid resumed>) = 0 [pid 5077] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./96", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5674 attached [pid 5674] chdir("./99" [pid 5077] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... mkdir resumed>) = 0 [pid 5075] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] <... chdir resumed>) = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5672] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5674] <... prctl resumed>) = 0 [pid 5673] <... openat resumed>) = 3 [pid 5672] write(3, "1000", 4 [pid 5077] fstat(3, [pid 5674] setpgid(0, 0 [pid 5075] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5674] <... setpgid resumed>) = 0 [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5674] <... openat resumed>) = 3 [pid 5674] write(3, "1000", 4 [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5675 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5675 attached [pid 5674] <... write resumed>) = 4 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5674] close(3 [pid 5077] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5674] <... close resumed>) = 0 [pid 5672] <... write resumed>) = 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5674] symlink("/dev/binderfs", "./binderfs" [pid 5672] close(3 [pid 5077] lstat("./98/binderfs", [pid 5675] chdir("./96" [pid 5673] write(3, "1000", 4 [pid 5075] getdents64(3, [pid 5674] <... symlink resumed>) = 0 [pid 5672] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5675] <... chdir resumed>) = 0 [pid 5674] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5673] <... write resumed>) = 4 [pid 5672] symlink("/dev/binderfs", "./binderfs" [pid 5077] unlink("./98/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5674] <... madvise resumed>) = 0 [pid 5675] <... prctl resumed>) = 0 [pid 5674] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5673] close(3 [pid 5672] <... symlink resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5675] setpgid(0, 0 [pid 5674] <... openat resumed>) = 3 [pid 5673] <... close resumed>) = 0 [pid 5672] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5675] <... setpgid resumed>) = 0 [pid 5674] write(3, "1", 1 [pid 5673] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] lstat("./91/binderfs", [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] <... write resumed>) = 1 [pid 5672] <... madvise resumed>) = 0 [pid 5675] <... openat resumed>) = 3 [pid 5674] write(3, "\x32\x00", 2 [pid 5675] write(3, "1000", 4 [pid 5674] <... write resumed>) = 2 [pid 5673] <... symlink resumed>) = 0 [pid 5672] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5675] <... write resumed>) = 4 [pid 5674] exit_group(0 [pid 5673] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... close resumed>) = 0 [pid 5075] unlink("./91/binderfs" [pid 5675] close(3 [pid 5674] <... exit_group resumed>) = ? [pid 5672] <... openat resumed>) = 3 [pid 5077] rmdir("./98" [pid 5675] <... close resumed>) = 0 [pid 5674] +++ exited with 0 +++ [pid 5673] <... madvise resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5675] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5673] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5672] write(3, "1", 1 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5675] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] mkdir("./99", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5675] <... madvise resumed>) = 0 [pid 5673] <... openat resumed>) = 3 [pid 5672] <... write resumed>) = 1 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] close(3 [pid 5675] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5672] write(3, "\x32\x00", 2 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5675] <... openat resumed>) = 3 [pid 5673] write(3, "1", 1 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./91" [pid 5675] write(3, "1", 1 [pid 5079] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5676 attached [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5676 [pid 5075] mkdir("./92", 0777 [pid 5079] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5676] chdir("./99" [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5675] <... write resumed>) = 1 ./strace-static-x86_64: Process 5677 attached [pid 5676] <... chdir resumed>) = 0 [pid 5675] write(3, "\x32\x00", 2 [pid 5673] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5675] <... write resumed>) = 2 [pid 5675] exit_group(0) = ? [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5677 [pid 5079] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5673] write(3, "\x32\x00", 2 [pid 5079] lstat("./99/binderfs", [pid 5677] chdir("./92" [pid 5676] <... prctl resumed>) = 0 [pid 5675] +++ exited with 0 +++ [pid 5673] <... write resumed>) = 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] unlink("./99/binderfs" [pid 5673] exit_group(0 [pid 5672] <... write resumed>) = 2 [pid 5079] <... unlink resumed>) = 0 [pid 5672] exit_group(0 [pid 5673] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5076] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5672] <... exit_group resumed>) = ? [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5672] +++ exited with 0 +++ [pid 5079] close(3 [pid 5076] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5677] <... chdir resumed>) = 0 [pid 5676] setpgid(0, 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... close resumed>) = 0 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5676] <... setpgid resumed>) = 0 [pid 5079] rmdir("./99" [pid 5076] <... openat resumed>) = 3 [pid 5677] <... prctl resumed>) = 0 [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5677] setpgid(0, 0 [pid 5676] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5677] <... setpgid resumed>) = 0 [pid 5676] write(3, "1000", 4 [pid 5081] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5676] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5677] <... openat resumed>) = 3 [pid 5676] close(3 [pid 5673] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] mkdir("./100", 0777 [pid 5076] getdents64(3, [pid 5677] write(3, "1000", 4 [pid 5676] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5677] <... write resumed>) = 4 [pid 5676] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5677] close(3 [pid 5676] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5076] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] <... close resumed>) = 0 [pid 5676] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5677] symlink("/dev/binderfs", "./binderfs" [pid 5676] <... madvise resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] <... symlink resumed>) = 0 [pid 5676] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5676] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./96/binderfs", [pid 5677] <... madvise resumed>) = 0 [pid 5676] write(3, "1", 1 [pid 5081] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5677] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5676] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5678 attached [pid 5677] <... openat resumed>) = 3 [pid 5676] write(3, "\x32\x00", 2 [pid 5081] lstat("./102/binderfs", [pid 5080] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5678 [pid 5076] unlink("./96/binderfs" [pid 5678] chdir("./100" [pid 5677] write(3, "1", 1 [pid 5676] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] fstat(3, [pid 5677] <... write resumed>) = 1 [pid 5676] exit_group(0 [pid 5081] unlink("./102/binderfs" [pid 5076] <... unlink resumed>) = 0 [pid 5677] write(3, "\x32\x00", 2 [pid 5676] <... exit_group resumed>) = ? [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5678] <... chdir resumed>) = 0 [pid 5677] <... write resumed>) = 2 [pid 5676] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5076] getdents64(3, [pid 5677] exit_group(0 [pid 5081] getdents64(3, [pid 5677] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5677] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... close resumed>) = 0 [pid 5678] <... prctl resumed>) = 0 [pid 5077] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5678] setpgid(0, 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./103/binderfs", [pid 5075] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] rmdir("./102" [pid 5077] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] rmdir("./96" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] <... setpgid resumed>) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5678] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5080] unlink("./103/binderfs" [pid 5077] fstat(3, [pid 5075] <... openat resumed>) = 3 [pid 5081] mkdir("./103", 0777 [pid 5076] mkdir("./97", 0777 [pid 5678] write(3, "1000", 4 [pid 5080] <... unlink resumed>) = 0 [pid 5075] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5075] getdents64(3, [pid 5678] <... write resumed>) = 4 [pid 5678] close(3) = 0 [pid 5678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5678] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5678] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] rmdir("./103" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] <... openat resumed>) = 3 [pid 5678] write(3, "1", 1) = 1 [pid 5077] lstat("./99/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5678] write(3, "\x32\x00", 2) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] lstat("./92/binderfs", [pid 5080] mkdir("./104", 0777 [pid 5077] unlink("./99/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5678] exit_group(0) = ? [pid 5678] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5679 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] unlink("./92/binderfs" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5679 attached [pid 5075] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5679] chdir("./103" [pid 5077] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5679] <... chdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5079] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... openat resumed>) = 3 [pid 5075] rmdir("./92" [pid 5079] fstat(3, [pid 5077] rmdir("./99" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5679] <... prctl resumed>) = 0 [pid 5679] setpgid(0, 0) = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5679] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] mkdir("./93", 0777 [pid 5079] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5679] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5679] <... write resumed>) = 4 [pid 5679] close(3) = 0 [pid 5679] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5079] lstat("./100/binderfs", [pid 5679] <... symlink resumed>) = 0 [pid 5077] mkdir("./100", 0777 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5679] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5079] unlink("./100/binderfs" [pid 5077] <... mkdir resumed>) = 0 [pid 5679] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5679] write(3, "1", 1) = 1 [pid 5679] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5681 attached [pid 5679] <... write resumed>) = 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5680 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5681 ./strace-static-x86_64: Process 5680 attached [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5683 [pid 5079] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5682 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./100"./strace-static-x86_64: Process 5682 attached [pid 5680] chdir("./97" [pid 5679] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5683 attached [pid 5682] chdir("./100" [pid 5680] <... chdir resumed>) = 0 [pid 5679] <... exit_group resumed>) = ? [pid 5079] mkdir("./101", 0777 [pid 5683] chdir("./104" [pid 5682] <... chdir resumed>) = 0 [pid 5681] chdir("./93" [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] +++ exited with 0 +++ [pid 5079] <... mkdir resumed>) = 0 [pid 5683] <... chdir resumed>) = 0 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5680] <... prctl resumed>) = 0 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5682] <... prctl resumed>) = 0 [pid 5681] <... chdir resumed>) = 0 [pid 5680] setpgid(0, 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5683] <... prctl resumed>) = 0 [pid 5682] setpgid(0, 0 [pid 5680] <... setpgid resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5683] setpgid(0, 0 [pid 5682] <... setpgid resumed>) = 0 [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5683] <... setpgid resumed>) = 0 [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5680] <... openat resumed>) = 3 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5682] <... openat resumed>) = 3 [pid 5681] <... prctl resumed>) = 0 [pid 5680] write(3, "1000", 4 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5684 [pid 5683] <... openat resumed>) = 3 [pid 5682] write(3, "1000", 4 [pid 5681] setpgid(0, 0 [pid 5680] <... write resumed>) = 4 ./strace-static-x86_64: Process 5684 attached [pid 5683] write(3, "1000", 4 [pid 5682] <... write resumed>) = 4 [pid 5681] <... setpgid resumed>) = 0 [pid 5680] close(3 [pid 5684] chdir("./101" [pid 5683] <... write resumed>) = 4 [pid 5682] close(3 [pid 5680] <... close resumed>) = 0 [pid 5081] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] <... chdir resumed>) = 0 [pid 5683] close(3 [pid 5682] <... close resumed>) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5683] <... close resumed>) = 0 [pid 5682] symlink("/dev/binderfs", "./binderfs" [pid 5681] <... openat resumed>) = 3 [pid 5680] <... symlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5684] <... prctl resumed>) = 0 [pid 5683] symlink("/dev/binderfs", "./binderfs" [pid 5682] <... symlink resumed>) = 0 [pid 5681] write(3, "1000", 4 [pid 5680] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... openat resumed>) = 3 [pid 5684] setpgid(0, 0 [pid 5683] <... symlink resumed>) = 0 [pid 5682] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5681] <... write resumed>) = 4 [pid 5680] <... madvise resumed>) = 0 [pid 5081] fstat(3, [pid 5684] <... setpgid resumed>) = 0 [pid 5683] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5682] <... madvise resumed>) = 0 [pid 5681] close(3 [pid 5680] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5683] <... madvise resumed>) = 0 [pid 5682] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5681] <... close resumed>) = 0 [pid 5680] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5684] <... openat resumed>) = 3 [pid 5683] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5682] <... openat resumed>) = 3 [pid 5681] symlink("/dev/binderfs", "./binderfs" [pid 5680] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5684] write(3, "1000", 4 [pid 5683] <... openat resumed>) = 3 [pid 5682] write(3, "1", 1 [pid 5681] <... symlink resumed>) = 0 [pid 5680] <... write resumed>) = 1 [pid 5684] <... write resumed>) = 4 [pid 5683] write(3, "1", 1 [pid 5682] <... write resumed>) = 1 [pid 5681] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5680] write(3, "\x32\x00", 2 [pid 5081] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] close(3 [pid 5683] <... write resumed>) = 1 [pid 5682] write(3, "\x32\x00", 2 [pid 5681] <... madvise resumed>) = 0 [pid 5680] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] <... close resumed>) = 0 [pid 5683] write(3, "\x32\x00", 2 [pid 5682] <... write resumed>) = 2 [pid 5681] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5680] exit_group(0 [pid 5684] symlink("/dev/binderfs", "./binderfs" [pid 5683] <... write resumed>) = 2 [pid 5682] exit_group(0 [pid 5681] <... openat resumed>) = 3 [pid 5680] <... exit_group resumed>) = ? [pid 5081] lstat("./103/binderfs", [pid 5684] <... symlink resumed>) = 0 [pid 5683] exit_group(0 [pid 5682] <... exit_group resumed>) = ? [pid 5681] write(3, "1", 1 [pid 5680] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5684] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5683] <... exit_group resumed>) = ? [pid 5682] +++ exited with 0 +++ [pid 5681] <... write resumed>) = 1 [pid 5081] unlink("./103/binderfs" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5684] <... madvise resumed>) = 0 [pid 5683] +++ exited with 0 +++ [pid 5681] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5684] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5684] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5080] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5684] <... write resumed>) = 1 [pid 5681] <... write resumed>) = 2 [pid 5081] close(3 [pid 5080] lstat("./104/binderfs", [pid 5684] write(3, "\x32\x00", 2 [pid 5681] exit_group(0 [pid 5081] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./104/binderfs") = 0 [pid 5080] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./104" [pid 5684] <... write resumed>) = 2 [pid 5080] <... rmdir resumed>) = 0 [pid 5681] <... exit_group resumed>) = ? [pid 5081] rmdir("./103" [pid 5080] mkdir("./105", 0777 [pid 5076] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5684] exit_group(0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5684] <... exit_group resumed>) = ? [pid 5081] mkdir("./104", 0777 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5685 [pid 5077] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5681] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5686 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5685 attached [pid 5684] +++ exited with 0 +++ [pid 5077] lstat("./100/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5686 attached [pid 5685] chdir("./105" [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] lstat("./97/binderfs", [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5686] chdir("./104" [pid 5077] unlink("./100/binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5685] <... chdir resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] unlink("./97/binderfs" [pid 5685] setpgid(0, 0 [pid 5077] getdents64(3, [pid 5685] <... setpgid resumed>) = 0 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5686] <... chdir resumed>) = 0 [pid 5685] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5075] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] write(3, "1000", 4) = 4 [pid 5077] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5685] close(3 [pid 5079] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./100" [pid 5076] close(3 [pid 5075] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5685] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5685] symlink("/dev/binderfs", "./binderfs" [pid 5686] <... prctl resumed>) = 0 [pid 5685] <... symlink resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5686] setpgid(0, 0 [pid 5685] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5686] <... setpgid resumed>) = 0 [pid 5685] <... madvise resumed>) = 0 [pid 5079] fstat(3, [pid 5077] mkdir("./101", 0777 [pid 5076] rmdir("./97" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5685] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5685] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5685] write(3, "1", 1 [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5685] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5685] write(3, "\x32\x00", 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] mkdir("./98", 0777 [pid 5686] <... openat resumed>) = 3 [pid 5685] <... write resumed>) = 2 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5685] exit_group(0 [pid 5079] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5686] write(3, "1000", 4 [pid 5685] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5687 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5686] <... write resumed>) = 4 [pid 5079] lstat("./101/binderfs", [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, ./strace-static-x86_64: Process 5687 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5687] chdir("./101" [pid 5080] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5687] <... chdir resumed>) = 0 [pid 5686] close(3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./101/binderfs" [pid 5075] lstat("./93/binderfs", [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5686] <... close resumed>) = 0 [pid 5080] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5687] <... prctl resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5687] setpgid(0, 0 [pid 5686] symlink("/dev/binderfs", "./binderfs" [pid 5080] lstat("./105/binderfs", [pid 5079] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5688 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5687] <... setpgid resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5688 attached [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5686] <... symlink resumed>) = 0 [pid 5080] unlink("./105/binderfs" [pid 5075] unlink("./93/binderfs" [pid 5688] chdir("./98" [pid 5687] <... openat resumed>) = 3 [pid 5686] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... unlink resumed>) = 0 [pid 5079] close(3 [pid 5688] <... chdir resumed>) = 0 [pid 5687] write(3, "1000", 4 [pid 5080] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5687] <... write resumed>) = 4 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5686] <... madvise resumed>) = 0 [pid 5075] getdents64(3, [pid 5688] <... prctl resumed>) = 0 [pid 5687] close(3 [pid 5080] close(3 [pid 5079] rmdir("./101" [pid 5688] setpgid(0, 0 [pid 5687] <... close resumed>) = 0 [pid 5686] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5688] <... setpgid resumed>) = 0 [pid 5687] symlink("/dev/binderfs", "./binderfs" [pid 5080] rmdir("./105" [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5687] <... symlink resumed>) = 0 [pid 5686] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5688] <... openat resumed>) = 3 [pid 5687] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5686] write(3, "1", 1 [pid 5080] mkdir("./106", 0777 [pid 5079] mkdir("./102", 0777 [pid 5075] <... close resumed>) = 0 [pid 5688] write(3, "1000", 4 [pid 5687] <... madvise resumed>) = 0 [pid 5686] <... write resumed>) = 1 [pid 5080] <... mkdir resumed>) = 0 [pid 5688] <... write resumed>) = 4 [pid 5687] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... mkdir resumed>) = 0 [pid 5075] rmdir("./93" [pid 5688] close(3 [pid 5687] <... openat resumed>) = 3 [pid 5686] write(3, "\x32\x00", 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5688] <... close resumed>) = 0 [pid 5687] write(3, "1", 1 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5689 [pid 5688] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5689 attached [pid 5688] <... symlink resumed>) = 0 [pid 5687] <... write resumed>) = 1 [pid 5688] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5687] write(3, "\x32\x00", 2 [pid 5688] <... madvise resumed>) = 0 [pid 5687] <... write resumed>) = 2 [pid 5686] <... write resumed>) = 2 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5690 [pid 5075] mkdir("./94", 0777 [pid 5688] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5687] exit_group(0./strace-static-x86_64: Process 5690 attached [pid 5688] <... openat resumed>) = 3 [pid 5687] <... exit_group resumed>) = ? [pid 5075] <... mkdir resumed>) = 0 [pid 5690] chdir("./102" [pid 5689] chdir("./106" [pid 5688] write(3, "1", 1 [pid 5687] +++ exited with 0 +++ [pid 5686] exit_group(0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5690] <... chdir resumed>) = 0 [pid 5689] <... chdir resumed>) = 0 [pid 5688] <... write resumed>) = 1 [pid 5686] <... exit_group resumed>) = ? [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5688] write(3, "\x32\x00", 2 [pid 5690] <... prctl resumed>) = 0 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5688] <... write resumed>) = 2 [pid 5686] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5690] setpgid(0, 0 [pid 5689] <... prctl resumed>) = 0 [pid 5688] exit_group(0 [pid 5690] <... setpgid resumed>) = 0 [pid 5688] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5691 [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5689] setpgid(0, 0 [pid 5688] +++ exited with 0 +++ [pid 5081] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5691 attached [pid 5690] <... openat resumed>) = 3 [pid 5689] <... setpgid resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5691] chdir("./94" [pid 5690] write(3, "1000", 4 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5691] <... chdir resumed>) = 0 [pid 5690] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5688, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5690] close(3 [pid 5689] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5077] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5691] <... prctl resumed>) = 0 [pid 5690] <... close resumed>) = 0 [pid 5689] write(3, "1000", 4 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... restart_syscall resumed>) = 0 [pid 5691] setpgid(0, 0 [pid 5690] symlink("/dev/binderfs", "./binderfs" [pid 5689] <... write resumed>) = 4 [pid 5081] getdents64(3, [pid 5691] <... setpgid resumed>) = 0 [pid 5690] <... symlink resumed>) = 0 [pid 5689] close(3 [pid 5077] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5690] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5689] <... close resumed>) = 0 [pid 5081] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5691] <... openat resumed>) = 3 [pid 5690] <... madvise resumed>) = 0 [pid 5689] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5691] write(3, "1000", 4 [pid 5690] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./104/binderfs", [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5691] <... write resumed>) = 4 [pid 5690] <... openat resumed>) = 3 [pid 5689] <... symlink resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5691] close(3 [pid 5690] write(3, "1", 1 [pid 5081] unlink("./104/binderfs" [pid 5689] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] getdents64(3, [pid 5076] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5691] <... close resumed>) = 0 [pid 5690] <... write resumed>) = 1 [pid 5691] symlink("/dev/binderfs", "./binderfs" [pid 5690] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5691] <... symlink resumed>) = 0 [pid 5690] <... write resumed>) = 2 [pid 5689] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5076] <... openat resumed>) = 3 [pid 5077] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5691] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5690] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5691] <... madvise resumed>) = 0 [pid 5690] <... exit_group resumed>) = ? [pid 5689] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] close(3 [pid 5077] lstat("./101/binderfs", [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5691] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5690] +++ exited with 0 +++ [pid 5689] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5690, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5691] <... openat resumed>) = 3 [pid 5689] write(3, "1", 1 [pid 5081] rmdir("./104" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] getdents64(3, [pid 5691] write(3, "1", 1 [pid 5689] <... write resumed>) = 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] unlink("./101/binderfs" [pid 5689] write(3, "\x32\x00", 2 [pid 5081] mkdir("./105", 0777 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5691] <... write resumed>) = 1 [pid 5689] <... write resumed>) = 2 [pid 5691] write(3, "\x32\x00", 2) = 2 [pid 5689] exit_group(0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5691] exit_group(0 [pid 5689] <... exit_group resumed>) = ? [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5691] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5691] +++ exited with 0 +++ [pid 5079] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5076] lstat("./98/binderfs", [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5692 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./101" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] unlink("./98/binderfs"./strace-static-x86_64: Process 5692 attached [pid 5692] chdir("./105" [pid 5077] <... rmdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5692] <... chdir resumed>) = 0 [pid 5079] fstat(3, [pid 5076] <... unlink resumed>) = 0 [pid 5077] mkdir("./102", 0777 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5692] <... prctl resumed>) = 0 [pid 5692] setpgid(0, 0) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] close(3 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... close resumed>) = 0 [pid 5075] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5692] <... openat resumed>) = 3 [pid 5692] write(3, "1000", 4 [pid 5079] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./98" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] <... write resumed>) = 4 [pid 5689] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] close(3) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... rmdir resumed>) = 0 [pid 5692] symlink("/dev/binderfs", "./binderfs" [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] lstat("./102/binderfs", [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5693 [pid 5076] mkdir("./99", 0777 [pid 5075] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5692] <... symlink resumed>) = 0 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5692] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5079] unlink("./102/binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5692] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5693 attached [pid 5692] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, [pid 5693] chdir("./102" [pid 5692] write(3, "1", 1 [pid 5080] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5693] <... chdir resumed>) = 0 [pid 5692] <... write resumed>) = 1 [pid 5080] <... openat resumed>) = 3 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5692] write(3, "\x32\x00", 2 [pid 5080] fstat(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5694 attached [pid 5693] <... prctl resumed>) = 0 [pid 5692] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5694 [pid 5075] getdents64(3, [pid 5693] setpgid(0, 0 [pid 5692] exit_group(0 [pid 5080] getdents64(3, [pid 5079] close(3 [pid 5693] <... setpgid resumed>) = 0 [pid 5692] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5694] chdir("./99" [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5692] +++ exited with 0 +++ [pid 5080] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5075] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5694] <... chdir resumed>) = 0 [pid 5693] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./102" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5693] write(3, "1000", 4 [pid 5080] lstat("./106/binderfs", [pid 5693] <... write resumed>) = 4 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5694] <... prctl resumed>) = 0 [pid 5693] close(3 [pid 5080] unlink("./106/binderfs" [pid 5079] mkdir("./103", 0777 [pid 5075] lstat("./94/binderfs", [pid 5694] setpgid(0, 0 [pid 5693] <... close resumed>) = 0 [pid 5081] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... unlink resumed>) = 0 [pid 5693] symlink("/dev/binderfs", "./binderfs" [pid 5080] getdents64(3, [pid 5694] <... setpgid resumed>) = 0 [pid 5693] <... symlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5693] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5693] <... madvise resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5075] unlink("./94/binderfs" [pid 5693] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] rmdir("./106" [pid 5693] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5694] <... openat resumed>) = 3 [pid 5693] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] mkdir("./107", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5695 [pid 5075] getdents64(3, [pid 5694] write(3, "1000", 4 [pid 5693] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5080] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5695 attached [pid 5694] <... write resumed>) = 4 [pid 5693] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5695] chdir("./103" [pid 5694] close(3 [pid 5693] <... write resumed>) = 2 [pid 5081] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5695] <... chdir resumed>) = 0 [pid 5694] <... close resumed>) = 0 [pid 5693] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5696 [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5696 attached [pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5694] symlink("/dev/binderfs", "./binderfs" [pid 5693] <... exit_group resumed>) = ? [pid 5081] lstat("./105/binderfs", [pid 5075] rmdir("./94" [pid 5696] chdir("./107" [pid 5695] <... prctl resumed>) = 0 [pid 5694] <... symlink resumed>) = 0 [pid 5693] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5696] <... chdir resumed>) = 0 [pid 5695] setpgid(0, 0 [pid 5694] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] unlink("./105/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... rmdir resumed>) = 0 [pid 5696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5695] <... setpgid resumed>) = 0 [pid 5694] <... madvise resumed>) = 0 [pid 5696] <... prctl resumed>) = 0 [pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... unlink resumed>) = 0 [pid 5075] mkdir("./95", 0777 [pid 5696] setpgid(0, 0 [pid 5695] <... openat resumed>) = 3 [pid 5694] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5696] <... setpgid resumed>) = 0 [pid 5695] write(3, "1000", 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5695] <... write resumed>) = 4 [pid 5694] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5696] <... openat resumed>) = 3 [pid 5695] close(3 [pid 5694] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 [pid 5077] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5696] write(3, "1000", 4 [pid 5695] <... close resumed>) = 0 [pid 5694] <... write resumed>) = 1 [pid 5081] rmdir("./105" [pid 5695] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5697 attached [pid 5696] <... write resumed>) = 4 [pid 5695] <... symlink resumed>) = 0 [pid 5694] write(3, "\x32\x00", 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5697] chdir("./95" [pid 5696] close(3 [pid 5695] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5695] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5695] write(3, "1", 1) = 1 [pid 5694] <... write resumed>) = 2 [pid 5081] mkdir("./106", 0777 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5697 [pid 5697] <... chdir resumed>) = 0 [pid 5696] <... close resumed>) = 0 [pid 5695] write(3, "\x32\x00", 2 [pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5696] symlink("/dev/binderfs", "./binderfs" [pid 5695] <... write resumed>) = 2 [pid 5694] exit_group(0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 5697] <... prctl resumed>) = 0 [pid 5696] <... symlink resumed>) = 0 [pid 5695] exit_group(0 [pid 5694] <... exit_group resumed>) = ? [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5697] setpgid(0, 0 [pid 5696] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5695] <... exit_group resumed>) = ? [pid 5077] getdents64(3, [pid 5696] <... madvise resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5698 [pid 5696] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5696] <... openat resumed>) = 3 [pid 5077] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5698 attached [pid 5696] write(3, "1", 1 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5698] chdir("./106" [pid 5696] <... write resumed>) = 1 [pid 5695] +++ exited with 0 +++ [pid 5077] lstat("./102/binderfs", [pid 5698] <... chdir resumed>) = 0 [pid 5696] write(3, "\x32\x00", 2 [pid 5694] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5697] <... setpgid resumed>) = 0 [pid 5698] <... prctl resumed>) = 0 [pid 5698] setpgid(0, 0) = 0 [pid 5698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5696] <... write resumed>) = 2 [pid 5077] unlink("./102/binderfs" [pid 5698] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5696] exit_group(0 [pid 5698] write(3, "1000", 4 [pid 5697] <... openat resumed>) = 3 [pid 5696] <... exit_group resumed>) = ? [pid 5077] getdents64(3, [pid 5698] <... write resumed>) = 4 [pid 5698] close(3 [pid 5697] write(3, "1000", 4 [pid 5696] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5698] <... close resumed>) = 0 [pid 5698] symlink("/dev/binderfs", "./binderfs" [pid 5697] <... write resumed>) = 4 [pid 5077] close(3 [pid 5698] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5696, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5698] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5697] close(3 [pid 5080] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5698] <... madvise resumed>) = 0 [pid 5697] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./102" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5698] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5697] symlink("/dev/binderfs", "./binderfs" [pid 5080] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5698] <... openat resumed>) = 3 [pid 5697] <... symlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5698] write(3, "1", 1 [pid 5697] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5077] mkdir("./103", 0777 [pid 5076] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5698] <... write resumed>) = 1 [pid 5697] <... madvise resumed>) = 0 [pid 5080] fstat(3, [pid 5079] fstat(3, [pid 5698] write(3, "\x32\x00", 2 [pid 5697] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5697] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5697] write(3, "1", 1 [pid 5698] <... write resumed>) = 2 [pid 5697] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] fstat(3, [pid 5697] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5698] exit_group(0 [pid 5080] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5699 attached [pid 5698] <... exit_group resumed>) = ? [pid 5697] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5699 [pid 5076] getdents64(3, [pid 5699] chdir("./103" [pid 5697] exit_group(0 [pid 5080] lstat("./107/binderfs", [pid 5699] <... chdir resumed>) = 0 [pid 5698] +++ exited with 0 +++ [pid 5697] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5697] +++ exited with 0 +++ [pid 5080] unlink("./107/binderfs" [pid 5079] lstat("./103/binderfs", [pid 5076] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5699] <... prctl resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] getdents64(3, [pid 5079] unlink("./103/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5699] setpgid(0, 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5699] <... setpgid resumed>) = 0 [pid 5080] close(3 [pid 5079] <... unlink resumed>) = 0 [pid 5076] lstat("./99/binderfs", [pid 5075] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] rmdir("./107" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] unlink("./99/binderfs" [pid 5075] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... rmdir resumed>) = 0 [pid 5699] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5080] mkdir("./108", 0777 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5699] write(3, "1000", 4 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5699] <... write resumed>) = 4 [pid 5081] fstat(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5079] rmdir("./103" [pid 5076] getdents64(3, [pid 5075] fstat(3, [pid 5699] close(3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5699] <... close resumed>) = 0 [pid 5699] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] getdents64(3, [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5699] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] mkdir("./104", 0777 [pid 5076] close(3 [pid 5699] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5699] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... close resumed>) = 0 [pid 5699] <... openat resumed>) = 3 [pid 5699] write(3, "1", 1) = 1 [pid 5081] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... mkdir resumed>) = 0 [pid 5076] rmdir("./99" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5699] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5700 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5699] <... write resumed>) = 2 [pid 5081] lstat("./106/binderfs", [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5699] exit_group(0) = ? ./strace-static-x86_64: Process 5701 attached [pid 5699] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] mkdir("./100", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] unlink("./106/binderfs" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5701 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5700 attached [pid 5700] chdir("./108" [pid 5076] <... mkdir resumed>) = 0 [pid 5075] lstat("./95/binderfs", [pid 5700] <... chdir resumed>) = 0 [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... unlink resumed>) = 0 [pid 5700] <... prctl resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] getdents64(3, [pid 5700] setpgid(0, 0 [pid 5075] unlink("./95/binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5702 [pid 5700] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5702 attached [pid 5701] chdir("./104" [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] rmdir("./106" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5700] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5702] chdir("./100" [pid 5701] <... chdir resumed>) = 0 [pid 5700] write(3, "1000", 4 [pid 5081] mkdir("./107", 0777 [pid 5075] close(3 [pid 5702] <... chdir resumed>) = 0 [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5700] <... write resumed>) = 4 [pid 5077] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5701] <... prctl resumed>) = 0 [pid 5700] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5702] <... prctl resumed>) = 0 [pid 5701] setpgid(0, 0 [pid 5700] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 3 [pid 5075] rmdir("./95" [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./96", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5077] unlink("./103/binderfs" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5702] setpgid(0, 0 [pid 5701] <... setpgid resumed>) = 0 [pid 5700] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... unlink resumed>) = 0 [pid 5077] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5703 [pid 5077] <... close resumed>) = 0 [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] rmdir("./103" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5704 [pid 5702] <... setpgid resumed>) = 0 [pid 5701] <... openat resumed>) = 3 [pid 5700] <... symlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5703 attached [pid 5701] write(3, "1000", 4 [pid 5077] mkdir("./104", 0777./strace-static-x86_64: Process 5704 attached [pid 5703] chdir("./107" [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5701] <... write resumed>) = 4 [pid 5700] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... mkdir resumed>) = 0 [pid 5704] chdir("./96" [pid 5703] <... chdir resumed>) = 0 [pid 5701] close(3 [pid 5700] <... madvise resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5705 attached [pid 5704] <... chdir resumed>) = 0 [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5702] <... openat resumed>) = 3 [pid 5701] <... close resumed>) = 0 [pid 5700] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5703] <... prctl resumed>) = 0 [pid 5702] write(3, "1000", 4 [pid 5701] symlink("/dev/binderfs", "./binderfs" [pid 5700] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5705 [pid 5704] <... prctl resumed>) = 0 [pid 5703] setpgid(0, 0 [pid 5702] <... write resumed>) = 4 [pid 5701] <... symlink resumed>) = 0 [pid 5704] setpgid(0, 0 [pid 5703] <... setpgid resumed>) = 0 [pid 5702] close(3 [pid 5701] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5700] write(3, "1", 1 [pid 5704] <... setpgid resumed>) = 0 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5702] <... close resumed>) = 0 [pid 5705] chdir("./104" [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5703] <... openat resumed>) = 3 [pid 5702] symlink("/dev/binderfs", "./binderfs" [pid 5701] <... madvise resumed>) = 0 [pid 5700] <... write resumed>) = 1 [pid 5704] <... openat resumed>) = 3 [pid 5703] write(3, "1000", 4 [pid 5704] write(3, "1000", 4 [pid 5703] <... write resumed>) = 4 [pid 5702] <... symlink resumed>) = 0 [pid 5701] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5700] write(3, "\x32\x00", 2 [pid 5704] <... write resumed>) = 4 [pid 5703] close(3 [pid 5702] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5704] close(3 [pid 5703] <... close resumed>) = 0 [pid 5704] <... close resumed>) = 0 [pid 5703] symlink("/dev/binderfs", "./binderfs" [pid 5704] symlink("/dev/binderfs", "./binderfs" [pid 5703] <... symlink resumed>) = 0 [pid 5704] <... symlink resumed>) = 0 [pid 5703] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5704] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5703] <... madvise resumed>) = 0 [pid 5704] <... madvise resumed>) = 0 [pid 5703] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5704] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5703] <... openat resumed>) = 3 [pid 5704] <... openat resumed>) = 3 [pid 5703] write(3, "1", 1 [pid 5704] write(3, "1", 1 [pid 5701] <... openat resumed>) = 3 [pid 5702] <... madvise resumed>) = 0 [pid 5701] write(3, "1", 1 [pid 5702] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5702] write(3, "1", 1 [pid 5705] <... chdir resumed>) = 0 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5705] setpgid(0, 0) = 0 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5704] <... write resumed>) = 1 [pid 5703] <... write resumed>) = 1 [pid 5702] <... write resumed>) = 1 [pid 5701] <... write resumed>) = 1 [pid 5705] write(3, "1000", 4 [pid 5704] write(3, "\x32\x00", 2 [pid 5703] write(3, "\x32\x00", 2 [pid 5702] write(3, "\x32\x00", 2 [pid 5701] write(3, "\x32\x00", 2 [pid 5705] <... write resumed>) = 4 [pid 5704] <... write resumed>) = 2 [pid 5703] <... write resumed>) = 2 [pid 5702] <... write resumed>) = 2 [pid 5701] <... write resumed>) = 2 [pid 5705] close(3 [pid 5703] exit_group(0 [pid 5702] exit_group(0 [pid 5701] exit_group(0 [pid 5705] <... close resumed>) = 0 [pid 5703] <... exit_group resumed>) = ? [pid 5702] <... exit_group resumed>) = ? [pid 5701] <... exit_group resumed>) = ? [pid 5700] <... write resumed>) = 2 [pid 5705] symlink("/dev/binderfs", "./binderfs" [pid 5703] +++ exited with 0 +++ [pid 5702] +++ exited with 0 +++ [pid 5701] +++ exited with 0 +++ [pid 5700] exit_group(0 [pid 5704] exit_group(0 [pid 5700] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5705] <... symlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5705] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5704] <... exit_group resumed>) = ? [pid 5700] +++ exited with 0 +++ [pid 5705] <... madvise resumed>) = 0 [pid 5704] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5705] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5705] <... write resumed>) = 1 [pid 5081] fstat(3, [pid 5079] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5705] write(3, "\x32\x00", 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5080] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5076] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5705] <... write resumed>) = 2 [pid 5079] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5705] <... exit_group resumed>) = ? [pid 5081] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./104/binderfs", [pid 5075] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./107/binderfs", [pid 5080] fstat(3, [pid 5079] unlink("./104/binderfs" [pid 5076] getdents64(3, [pid 5075] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5705] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] unlink("./107/binderfs" [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] getdents64(3, [pid 5080] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5076] lstat("./100/binderfs", [pid 5081] close(3 [pid 5080] lstat("./108/binderfs", [pid 5079] rmdir("./104" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] rmdir("./107" [pid 5080] unlink("./108/binderfs" [pid 5079] <... rmdir resumed>) = 0 [pid 5076] unlink("./100/binderfs" [pid 5075] getdents64(3, [pid 5081] <... rmdir resumed>) = 0 [pid 5079] mkdir("./105", 0777 [pid 5077] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] mkdir("./108", 0777 [pid 5080] <... unlink resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5075] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./104/binderfs", [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] close(3 [pid 5075] lstat("./96/binderfs", [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5706 [pid 5077] unlink("./104/binderfs" [pid 5076] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] unlink("./96/binderfs" [pid 5080] rmdir("./108" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] rmdir("./100" [pid 5077] close(3 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5706 attached [pid 5077] <... close resumed>) = 0 [pid 5706] chdir("./105" [pid 5077] rmdir("./104" [pid 5076] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5706] <... chdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] mkdir("./101", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5707 [pid 5080] mkdir("./109", 0777 [pid 5077] mkdir("./105", 0777 [pid 5706] <... prctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5706] setpgid(0, 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... mkdir resumed>) = 0 [pid 5706] <... setpgid resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5708 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./96"./strace-static-x86_64: Process 5708 attached [pid 5706] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5709 [pid 5706] write(3, "1000", 4) = 4 [pid 5706] close(3) = 0 [pid 5706] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5706] madvise(0x20000000, 4194304, MADV_MERGEABLE./strace-static-x86_64: Process 5709 attached ) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5710 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5710 attached ./strace-static-x86_64: Process 5707 attached [pid 5709] chdir("./109" [pid 5708] chdir("./105" [pid 5706] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] mkdir("./97", 0777 [pid 5709] <... chdir resumed>) = 0 [pid 5708] <... chdir resumed>) = 0 [pid 5707] chdir("./108" [pid 5706] <... openat resumed>) = 3 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] <... chdir resumed>) = 0 [pid 5706] write(3, "1", 1 [pid 5709] <... prctl resumed>) = 0 [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5706] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5710] chdir("./101" [pid 5709] setpgid(0, 0 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] <... prctl resumed>) = 0 [pid 5706] write(3, "\x32\x00", 2 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5710] <... chdir resumed>) = 0 [pid 5709] <... setpgid resumed>) = 0 [pid 5708] <... prctl resumed>) = 0 [pid 5707] setpgid(0, 0 [pid 5706] <... write resumed>) = 2 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] <... setpgid resumed>) = 0 [pid 5706] exit_group(0 [pid 5710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5709] <... openat resumed>) = 3 [pid 5708] setpgid(0, 0 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5706] <... exit_group resumed>) = ? [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5711 [pid 5710] <... prctl resumed>) = 0 [pid 5709] write(3, "1000", 4 [pid 5708] <... setpgid resumed>) = 0 [pid 5707] <... openat resumed>) = 3 [pid 5706] +++ exited with 0 +++ ./strace-static-x86_64: Process 5711 attached [pid 5709] <... write resumed>) = 4 [pid 5707] write(3, "1000", 4 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5711] chdir("./97" [pid 5710] setpgid(0, 0 [pid 5709] close(3 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] <... write resumed>) = 4 [pid 5711] <... chdir resumed>) = 0 [pid 5709] <... close resumed>) = 0 [pid 5707] close(3 [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5710] <... setpgid resumed>) = 0 [pid 5709] symlink("/dev/binderfs", "./binderfs" [pid 5708] <... openat resumed>) = 3 [pid 5707] <... close resumed>) = 0 [pid 5711] <... prctl resumed>) = 0 [pid 5710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5709] <... symlink resumed>) = 0 [pid 5708] write(3, "1000", 4 [pid 5707] symlink("/dev/binderfs", "./binderfs" [pid 5079] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5711] setpgid(0, 0 [pid 5710] <... openat resumed>) = 3 [pid 5709] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5708] <... write resumed>) = 4 [pid 5707] <... symlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5711] <... setpgid resumed>) = 0 [pid 5710] write(3, "1000", 4 [pid 5709] <... madvise resumed>) = 0 [pid 5708] close(3 [pid 5707] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5710] <... write resumed>) = 4 [pid 5709] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5708] <... close resumed>) = 0 [pid 5707] <... madvise resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5711] <... openat resumed>) = 3 [pid 5710] close(3 [pid 5709] <... openat resumed>) = 3 [pid 5708] symlink("/dev/binderfs", "./binderfs" [pid 5707] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] fstat(3, [pid 5711] write(3, "1000", 4 [pid 5710] <... close resumed>) = 0 [pid 5709] write(3, "1", 1 [pid 5707] <... openat resumed>) = 3 [pid 5711] <... write resumed>) = 4 [pid 5710] symlink("/dev/binderfs", "./binderfs" [pid 5709] <... write resumed>) = 1 [pid 5708] <... symlink resumed>) = 0 [pid 5707] write(3, "1", 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5711] close(3 [pid 5710] <... symlink resumed>) = 0 [pid 5709] write(3, "\x32\x00", 2 [pid 5708] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5707] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5711] <... close resumed>) = 0 [pid 5710] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5709] <... write resumed>) = 2 [pid 5708] <... madvise resumed>) = 0 [pid 5707] write(3, "\x32\x00", 2 [pid 5711] symlink("/dev/binderfs", "./binderfs" [pid 5710] <... madvise resumed>) = 0 [pid 5709] exit_group(0 [pid 5708] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5707] <... write resumed>) = 2 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5711] <... symlink resumed>) = 0 [pid 5710] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5709] <... exit_group resumed>) = ? [pid 5708] <... openat resumed>) = 3 [pid 5707] exit_group(0 [pid 5079] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5711] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5710] <... openat resumed>) = 3 [pid 5709] +++ exited with 0 +++ [pid 5708] write(3, "1", 1 [pid 5707] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5711] <... madvise resumed>) = 0 [pid 5710] write(3, "1", 1 [pid 5708] <... write resumed>) = 1 [pid 5707] +++ exited with 0 +++ [pid 5079] lstat("./105/binderfs", [pid 5711] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5710] <... write resumed>) = 1 [pid 5708] write(3, "\x32\x00", 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5711] <... openat resumed>) = 3 [pid 5710] write(3, "\x32\x00", 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5711] write(3, "1", 1) = 1 [pid 5708] <... write resumed>) = 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] unlink("./105/binderfs" [pid 5711] write(3, "\x32\x00", 2 [pid 5708] exit_group(0) = ? [pid 5081] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5081] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5708] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5080] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5081] fstat(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] rmdir("./105" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5080] fstat(3, [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] mkdir("./106", 0777 [pid 5711] <... write resumed>) = 2 [pid 5710] <... write resumed>) = 2 [pid 5081] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5711] exit_group(0 [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5711] <... exit_group resumed>) = ? [pid 5710] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5711] +++ exited with 0 +++ [pid 5710] <... exit_group resumed>) = ? [pid 5081] lstat("./108/binderfs", [pid 5080] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5081] unlink("./108/binderfs" [pid 5080] lstat("./109/binderfs", [pid 5077] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5712 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] getdents64(3, [pid 5080] unlink("./109/binderfs" [pid 5077] getdents64(3, [pid 5075] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5077] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5710] +++ exited with 0 +++ [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./108" [pid 5080] close(3 [pid 5077] lstat("./105/binderfs", [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5710, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, ./strace-static-x86_64: Process 5712 attached [pid 5081] mkdir("./109", 0777 [pid 5080] rmdir("./109" [pid 5077] unlink("./105/binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5712] chdir("./106" [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./110", 0777 [pid 5077] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5712] <... chdir resumed>) = 0 [pid 5712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5712] <... prctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] close(3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5075] lstat("./97/binderfs", [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] rmdir("./105" [pid 5076] fstat(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5712] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5713 attached ./strace-static-x86_64: Process 5714 attached [pid 5712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5713 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./97/binderfs" [pid 5713] chdir("./109" [pid 5712] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5714 [pid 5077] mkdir("./106", 0777 [pid 5076] getdents64(3, [pid 5714] chdir("./110" [pid 5713] <... chdir resumed>) = 0 [pid 5712] write(3, "1000", 4 [pid 5075] <... unlink resumed>) = 0 [pid 5714] <... chdir resumed>) = 0 [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5712] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5713] <... prctl resumed>) = 0 [pid 5712] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5714] <... prctl resumed>) = 0 [pid 5713] setpgid(0, 0 [pid 5712] <... close resumed>) = 0 [pid 5714] setpgid(0, 0 [pid 5713] <... setpgid resumed>) = 0 [pid 5712] symlink("/dev/binderfs", "./binderfs" [pid 5714] <... setpgid resumed>) = 0 [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5712] <... symlink resumed>) = 0 [pid 5076] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5715 attached [pid 5714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5713] <... openat resumed>) = 3 [pid 5712] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5715 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5714] <... openat resumed>) = 3 [pid 5713] write(3, "1000", 4 [pid 5712] <... madvise resumed>) = 0 [pid 5076] lstat("./101/binderfs", [pid 5714] write(3, "1000", 4 [pid 5713] <... write resumed>) = 4 [pid 5712] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... close resumed>) = 0 [pid 5714] <... write resumed>) = 4 [pid 5713] close(3 [pid 5712] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] rmdir("./97" [pid 5714] close(3 [pid 5713] <... close resumed>) = 0 [pid 5712] write(3, "1", 1 [pid 5714] <... close resumed>) = 0 [pid 5713] symlink("/dev/binderfs", "./binderfs" [pid 5712] <... write resumed>) = 1 [pid 5715] chdir("./106" [pid 5714] symlink("/dev/binderfs", "./binderfs" [pid 5713] <... symlink resumed>) = 0 [pid 5712] write(3, "\x32\x00", 2 [pid 5076] unlink("./101/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5715] <... chdir resumed>) = 0 [pid 5714] <... symlink resumed>) = 0 [pid 5713] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5712] <... write resumed>) = 2 [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5714] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5713] <... madvise resumed>) = 0 [pid 5712] exit_group(0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] mkdir("./98", 0777 [pid 5715] <... prctl resumed>) = 0 [pid 5714] <... madvise resumed>) = 0 [pid 5713] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5712] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5715] setpgid(0, 0 [pid 5714] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5713] <... openat resumed>) = 3 [pid 5712] +++ exited with 0 +++ [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5715] <... setpgid resumed>) = 0 [pid 5714] <... openat resumed>) = 3 [pid 5713] write(3, "1", 1 [pid 5714] write(3, "1", 1 [pid 5713] <... write resumed>) = 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5714] <... write resumed>) = 1 [pid 5713] write(3, "\x32\x00", 2 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... close resumed>) = 0 [pid 5715] <... openat resumed>) = 3 [pid 5714] write(3, "\x32\x00", 2 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] rmdir("./101"./strace-static-x86_64: Process 5716 attached [pid 5715] write(3, "1000", 4 [pid 5714] <... write resumed>) = 2 [pid 5713] <... write resumed>) = 2 [pid 5716] chdir("./98" [pid 5715] <... write resumed>) = 4 [pid 5714] exit_group(0 [pid 5713] exit_group(0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5716 [pid 5716] <... chdir resumed>) = 0 [pid 5715] close(3 [pid 5714] <... exit_group resumed>) = ? [pid 5713] <... exit_group resumed>) = ? [pid 5076] mkdir("./102", 0777 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5715] <... close resumed>) = 0 [pid 5714] +++ exited with 0 +++ [pid 5713] +++ exited with 0 +++ [pid 5079] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] <... prctl resumed>) = 0 [pid 5716] setpgid(0, 0) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5715] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5716] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5716] write(3, "1000", 4 [pid 5715] <... symlink resumed>) = 0 [pid 5716] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5716] close(3) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5716] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5716] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5716] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5715] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5717 [pid 5716] <... openat resumed>) = 3 [pid 5715] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5716] write(3, "1", 1 [pid 5081] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5716] <... write resumed>) = 1 [pid 5715] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5717 attached [pid 5716] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5717] chdir("./102" [pid 5716] <... write resumed>) = 2 [pid 5715] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5080] fstat(3, [pid 5717] <... chdir resumed>) = 0 [pid 5716] exit_group(0 [pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5716] <... exit_group resumed>) = ? [pid 5717] <... prctl resumed>) = 0 [pid 5716] +++ exited with 0 +++ [pid 5715] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5715] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5715] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5716, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5717] setpgid(0, 0) = 0 [pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5717] write(3, "1000", 4) = 4 [pid 5717] close(3) = 0 [pid 5717] symlink("/dev/binderfs", "./binderfs" [pid 5715] <... write resumed>) = 2 [pid 5717] <... symlink resumed>) = 0 [pid 5081] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5717] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5715] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./106/binderfs", [pid 5075] <... restart_syscall resumed>) = 0 [pid 5717] <... madvise resumed>) = 0 [pid 5715] <... exit_group resumed>) = ? [pid 5081] lstat("./109/binderfs", [pid 5080] lstat("./110/binderfs", [pid 5717] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5717] <... openat resumed>) = 3 [pid 5717] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5717] <... write resumed>) = 1 [pid 5081] unlink("./109/binderfs" [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./106/binderfs" [pid 5075] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5717] write(3, "\x32\x00", 2 [pid 5715] +++ exited with 0 +++ [pid 5080] unlink("./110/binderfs" [pid 5717] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5717] exit_group(0 [pid 5081] getdents64(3, [pid 5080] <... unlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5717] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5717] +++ exited with 0 +++ [pid 5081] close(3 [pid 5080] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5075] fstat(3, [pid 5081] rmdir("./109" [pid 5080] close(3 [pid 5079] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./106" [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./110" [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5079] mkdir("./107", 0777 [pid 5081] mkdir("./110", 0777 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... mkdir resumed>) = 0 [pid 5080] mkdir("./111", 0777 [pid 5077] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5718 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5718 attached [pid 5718] chdir("./107" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./98/binderfs", [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5719 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5718] <... chdir resumed>) = 0 [pid 5718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5718] setpgid(0, 0) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5720 [pid 5077] getdents64(3, [pid 5076] fstat(3, [pid 5075] unlink("./98/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5075] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./106/binderfs", [pid 5076] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./106/binderfs" [pid 5076] lstat("./102/binderfs", [pid 5075] <... close resumed>) = 0 [pid 5718] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] rmdir("./98" [pid 5718] write(3, "1000", 4 [pid 5077] getdents64(3, [pid 5076] unlink("./102/binderfs" [pid 5718] <... write resumed>) = 4 ./strace-static-x86_64: Process 5720 attached [pid 5718] close(3 [pid 5075] <... rmdir resumed>) = 0 [pid 5720] chdir("./111" [pid 5718] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] mkdir("./99", 0777 [pid 5720] <... chdir resumed>) = 0 [pid 5718] symlink("/dev/binderfs", "./binderfs" [pid 5077] close(3 [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5719 attached [pid 5720] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5718] <... symlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5720] <... prctl resumed>) = 0 [pid 5718] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] rmdir("./106" [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5720] setpgid(0, 0 [pid 5719] chdir("./110" [pid 5718] <... madvise resumed>) = 0 [pid 5720] <... setpgid resumed>) = 0 [pid 5718] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5718] <... openat resumed>) = 3 [pid 5720] <... openat resumed>) = 3 [pid 5719] <... chdir resumed>) = 0 [pid 5718] write(3, "1", 1 [pid 5077] mkdir("./107", 0777 [pid 5076] rmdir("./102" [pid 5720] write(3, "1000", 4 [pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5718] <... write resumed>) = 1 [pid 5720] <... write resumed>) = 4 [pid 5718] write(3, "\x32\x00", 2 [pid 5720] close(3 [pid 5719] <... prctl resumed>) = 0 [pid 5718] <... write resumed>) = 2 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5721 [pid 5720] <... close resumed>) = 0 [pid 5719] setpgid(0, 0 [pid 5718] exit_group(0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5721 attached [pid 5720] symlink("/dev/binderfs", "./binderfs" [pid 5719] <... setpgid resumed>) = 0 [pid 5718] <... exit_group resumed>) = ? [pid 5076] mkdir("./103", 0777 [pid 5721] chdir("./99" [pid 5720] <... symlink resumed>) = 0 [pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5718] +++ exited with 0 +++ [pid 5721] <... chdir resumed>) = 0 [pid 5720] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5722 [pid 5076] <... mkdir resumed>) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5720] <... madvise resumed>) = 0 [pid 5719] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5721] <... prctl resumed>) = 0 [pid 5720] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5719] write(3, "1000", 4 [pid 5079] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5722 attached [pid 5721] setpgid(0, 0 [pid 5720] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5722] chdir("./107" [pid 5721] <... setpgid resumed>) = 0 [pid 5720] write(3, "1", 1 [pid 5719] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5723 attached [pid 5722] <... chdir resumed>) = 0 [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5720] <... write resumed>) = 1 [pid 5719] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5723] chdir("./103" [pid 5722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5721] <... openat resumed>) = 3 [pid 5720] write(3, "\x32\x00", 2 [pid 5719] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5723 [pid 5723] <... chdir resumed>) = 0 [pid 5722] <... prctl resumed>) = 0 [pid 5721] write(3, "1000", 4 [pid 5720] <... write resumed>) = 2 [pid 5719] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5722] setpgid(0, 0 [pid 5721] <... write resumed>) = 4 [pid 5720] exit_group(0 [pid 5079] getdents64(3, [pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5722] <... setpgid resumed>) = 0 [pid 5721] close(3 [pid 5720] <... exit_group resumed>) = ? [pid 5719] <... symlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5723] <... prctl resumed>) = 0 [pid 5722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5721] <... close resumed>) = 0 [pid 5720] +++ exited with 0 +++ [pid 5719] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5723] setpgid(0, 0 [pid 5722] <... openat resumed>) = 3 [pid 5721] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5723] <... setpgid resumed>) = 0 [pid 5722] write(3, "1000", 4 [pid 5721] <... symlink resumed>) = 0 [pid 5719] <... madvise resumed>) = 0 [pid 5079] lstat("./107/binderfs", [pid 5722] <... write resumed>) = 4 [pid 5721] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5722] close(3 [pid 5721] <... madvise resumed>) = 0 [pid 5719] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] unlink("./107/binderfs" [pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5722] <... close resumed>) = 0 [pid 5721] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5719] <... openat resumed>) = 3 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... unlink resumed>) = 0 [pid 5722] symlink("/dev/binderfs", "./binderfs" [pid 5721] <... openat resumed>) = 3 [pid 5719] write(3, "1", 1 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] getdents64(3, [pid 5723] <... openat resumed>) = 3 [pid 5722] <... symlink resumed>) = 0 [pid 5721] write(3, "1", 1 [pid 5719] <... write resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5723] write(3, "1000", 4 [pid 5722] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5721] <... write resumed>) = 1 [pid 5719] write(3, "\x32\x00", 2 [pid 5079] close(3 [pid 5723] <... write resumed>) = 4 [pid 5722] <... madvise resumed>) = 0 [pid 5721] write(3, "\x32\x00", 2 [pid 5079] <... close resumed>) = 0 [pid 5723] close(3 [pid 5722] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5721] <... write resumed>) = 2 [pid 5719] <... write resumed>) = 2 [pid 5080] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./107" [pid 5723] <... close resumed>) = 0 [pid 5722] <... openat resumed>) = 3 [pid 5721] exit_group(0 [pid 5719] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... rmdir resumed>) = 0 [pid 5723] symlink("/dev/binderfs", "./binderfs" [pid 5722] write(3, "1", 1 [pid 5721] <... exit_group resumed>) = ? [pid 5719] <... exit_group resumed>) = ? [pid 5080] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] mkdir("./108", 0777 [pid 5723] <... symlink resumed>) = 0 [pid 5722] <... write resumed>) = 1 [pid 5721] +++ exited with 0 +++ [pid 5719] +++ exited with 0 +++ [pid 5080] <... openat resumed>) = 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5723] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5722] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5719, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] fstat(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5724 attached [pid 5723] <... madvise resumed>) = 0 [pid 5722] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5723] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5722] exit_group(0 [pid 5080] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5724 [pid 5722] <... exit_group resumed>) = ? [pid 5723] <... openat resumed>) = 3 [pid 5722] +++ exited with 0 +++ [pid 5081] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5723] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5724] chdir("./108" [pid 5723] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5723] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5080] lstat("./111/binderfs", [pid 5724] <... chdir resumed>) = 0 [pid 5724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5724] setpgid(0, 0) = 0 [pid 5724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5723] <... write resumed>) = 2 [pid 5081] fstat(3, [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] unlink("./111/binderfs" [pid 5724] write(3, "1000", 4 [pid 5723] exit_group(0 [pid 5081] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5724] <... write resumed>) = 4 [pid 5723] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... unlink resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5724] close(3 [pid 5081] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5077] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5724] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5724] symlink("/dev/binderfs", "./binderfs" [pid 5723] +++ exited with 0 +++ [pid 5081] lstat("./110/binderfs", [pid 5080] close(3 [pid 5724] <... symlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(3, [pid 5724] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5724] <... madvise resumed>) = 0 [pid 5081] unlink("./110/binderfs" [pid 5080] rmdir("./111" [pid 5077] <... openat resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5724] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... unlink resumed>) = 0 [pid 5724] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5077] fstat(3, [pid 5075] getdents64(3, [pid 5724] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5724] <... write resumed>) = 1 [pid 5080] mkdir("./112", 0777 [pid 5076] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5724] write(3, "\x32\x00", 2 [pid 5081] close(3 [pid 5077] getdents64(3, [pid 5081] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] rmdir("./110" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5724] <... write resumed>) = 2 [pid 5076] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... rmdir resumed>) = 0 [pid 5724] exit_group(0./strace-static-x86_64: Process 5725 attached ) = ? [pid 5081] mkdir("./111", 0777 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5725 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5075] lstat("./99/binderfs", [pid 5725] chdir("./112" [pid 5724] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... mkdir resumed>) = 0 [pid 5077] lstat("./107/binderfs", [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] fstat(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5725] <... chdir resumed>) = 0 [pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] unlink("./107/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./99/binderfs"./strace-static-x86_64: Process 5726 attached [pid 5725] <... prctl resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5726 [pid 5725] setpgid(0, 0 [pid 5079] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5726] chdir("./111" [pid 5725] <... setpgid resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5726] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5726] <... prctl resumed>) = 0 [pid 5725] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5726] setpgid(0, 0 [pid 5725] write(3, "1000", 4 [pid 5079] fstat(3, [pid 5077] <... close resumed>) = 0 [pid 5076] lstat("./103/binderfs", [pid 5075] close(3 [pid 5726] <... setpgid resumed>) = 0 [pid 5725] <... write resumed>) = 4 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5725] close(3 [pid 5077] rmdir("./107" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5726] <... openat resumed>) = 3 [pid 5725] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] unlink("./103/binderfs" [pid 5726] write(3, "1000", 4 [pid 5725] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] mkdir("./108", 0777 [pid 5075] rmdir("./99" [pid 5079] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5726] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5726] close(3) = 0 [pid 5726] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5726] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] lstat("./108/binderfs", [pid 5726] <... madvise resumed>) = 0 [pid 5726] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5727 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./100", 0777 [pid 5079] unlink("./108/binderfs" [pid 5076] close(3 [pid 5726] write(3, "1", 1) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5726] write(3, "\x32\x00", 2 [pid 5079] <... unlink resumed>) = 0 [pid 5726] <... write resumed>) = 2 [pid 5725] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5727 attached [pid 5725] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] rmdir("./103" [pid 5727] chdir("./108") = 0 [pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5726] exit_group(0 [pid 5727] <... prctl resumed>) = 0 [pid 5726] <... exit_group resumed>) = ? [pid 5079] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5728 ./strace-static-x86_64: Process 5728 attached [pid 5727] setpgid(0, 0 [pid 5725] <... madvise resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] mkdir("./104", 0777 [pid 5727] <... setpgid resumed>) = 0 [pid 5726] +++ exited with 0 +++ [pid 5725] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] rmdir("./108" [pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... mkdir resumed>) = 0 [pid 5727] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] <... rmdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5727] write(3, "1000", 4 [pid 5725] <... openat resumed>) = 3 [pid 5081] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] mkdir("./109", 0777 [pid 5727] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5727] close(3 [pid 5081] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5727] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5727] symlink("/dev/binderfs", "./binderfs" [pid 5081] fstat(3, [pid 5727] <... symlink resumed>) = 0 [pid 5725] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5729 [pid 5728] chdir("./100" [pid 5727] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5725] <... write resumed>) = 1 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5729 attached [pid 5728] <... chdir resumed>) = 0 [pid 5727] <... madvise resumed>) = 0 [pid 5725] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5729] chdir("./104" [pid 5727] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5729] <... chdir resumed>) = 0 [pid 5727] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5727] write(3, "1", 1 [pid 5081] lstat("./111/binderfs", [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5730 [pid 5729] <... prctl resumed>) = 0 [pid 5728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5727] <... write resumed>) = 1 [pid 5725] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5729] setpgid(0, 0 [pid 5727] write(3, "\x32\x00", 2 [pid 5081] unlink("./111/binderfs"./strace-static-x86_64: Process 5730 attached [pid 5729] <... setpgid resumed>) = 0 [pid 5728] <... prctl resumed>) = 0 [pid 5727] <... write resumed>) = 2 [pid 5725] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5728] setpgid(0, 0 [pid 5727] exit_group(0 [pid 5725] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5730] chdir("./109" [pid 5729] <... openat resumed>) = 3 [pid 5728] <... setpgid resumed>) = 0 [pid 5727] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5730] <... chdir resumed>) = 0 [pid 5729] write(3, "1000", 4 [pid 5728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5727] +++ exited with 0 +++ [pid 5725] +++ exited with 0 +++ [pid 5081] close(3 [pid 5729] <... write resumed>) = 4 [pid 5081] <... close resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5729] close(3 [pid 5728] <... openat resumed>) = 3 [pid 5081] rmdir("./111" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5730] <... prctl resumed>) = 0 [pid 5729] <... close resumed>) = 0 [pid 5728] write(3, "1000", 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5730] setpgid(0, 0 [pid 5729] symlink("/dev/binderfs", "./binderfs" [pid 5728] <... write resumed>) = 4 [pid 5081] mkdir("./112", 0777 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5730] <... setpgid resumed>) = 0 [pid 5729] <... symlink resumed>) = 0 [pid 5728] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... restart_syscall resumed>) = 0 [pid 5729] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5728] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5729] <... madvise resumed>) = 0 [pid 5728] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5731 attached [pid 5730] <... openat resumed>) = 3 [pid 5729] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5731 [pid 5080] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5731] chdir("./112" [pid 5730] write(3, "1000", 4 [pid 5729] <... openat resumed>) = 3 [pid 5728] <... symlink resumed>) = 0 [pid 5077] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5731] <... chdir resumed>) = 0 [pid 5730] <... write resumed>) = 4 [pid 5729] write(3, "1", 1 [pid 5728] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5730] close(3 [pid 5729] <... write resumed>) = 1 [pid 5731] <... prctl resumed>) = 0 [pid 5730] <... close resumed>) = 0 [pid 5729] write(3, "\x32\x00", 2 [pid 5728] <... madvise resumed>) = 0 [pid 5080] fstat(3, [pid 5077] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5731] setpgid(0, 0 [pid 5730] symlink("/dev/binderfs", "./binderfs" [pid 5729] <... write resumed>) = 2 [pid 5728] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5731] <... setpgid resumed>) = 0 [pid 5730] <... symlink resumed>) = 0 [pid 5729] exit_group(0 [pid 5728] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5730] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5729] <... exit_group resumed>) = ? [pid 5728] write(3, "1", 1 [pid 5080] getdents64(3, [pid 5077] fstat(3, [pid 5731] <... openat resumed>) = 3 [pid 5730] <... madvise resumed>) = 0 [pid 5729] +++ exited with 0 +++ [pid 5728] <... write resumed>) = 1 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5731] write(3, "1000", 4 [pid 5730] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5728] write(3, "\x32\x00", 2 [pid 5080] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5731] <... write resumed>) = 4 [pid 5731] close(3) = 0 [pid 5731] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5731] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5731] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5731] write(3, "1", 1) = 1 [pid 5728] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] getdents64(3, [pid 5731] write(3, "\x32\x00", 2 [pid 5730] <... openat resumed>) = 3 [pid 5080] lstat("./112/binderfs", [pid 5076] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5731] <... write resumed>) = 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5730] write(3, "1", 1 [pid 5080] unlink("./112/binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5731] exit_group(0 [pid 5730] <... write resumed>) = 1 [pid 5076] <... openat resumed>) = 3 [pid 5731] <... exit_group resumed>) = ? [pid 5730] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5077] lstat("./108/binderfs", [pid 5076] fstat(3, [pid 5731] +++ exited with 0 +++ [pid 5728] exit_group(0 [pid 5080] getdents64(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5728] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] unlink("./108/binderfs" [pid 5076] getdents64(3, [pid 5730] <... write resumed>) = 2 [pid 5728] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] close(3 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... close resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5730] exit_group(0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] rmdir("./112" [pid 5077] getdents64(3, [pid 5076] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] fstat(3, [pid 5075] <... openat resumed>) = 3 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] fstat(3, [pid 5081] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5081] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] lstat("./112/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5730] <... exit_group resumed>) = ? [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./100/binderfs", [pid 5081] unlink("./112/binderfs" [pid 5077] close(3 [pid 5076] lstat("./104/binderfs", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./100/binderfs" [pid 5730] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5077] rmdir("./108" [pid 5076] unlink("./104/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5730, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] getdents64(3, [pid 5081] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5081] rmdir("./112" [pid 5077] mkdir("./109", 0777 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5075] rmdir("./100" [pid 5081] mkdir("./113", 0777 [pid 5080] mkdir("./113", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] mkdir("./101", 0777 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5733 attached [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5732 [pid 5076] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5733 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... close resumed>) = 0 [pid 5733] chdir("./113" [pid 5079] <... openat resumed>) = 3 [pid 5076] rmdir("./104" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5734 [pid 5079] fstat(3, ./strace-static-x86_64: Process 5732 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5732] chdir("./109" [pid 5079] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5732] <... chdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5735 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] mkdir("./105", 0777./strace-static-x86_64: Process 5735 attached ./strace-static-x86_64: Process 5734 attached [pid 5732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5732] setpgid(0, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5733] <... chdir resumed>) = 0 [pid 5732] <... setpgid resumed>) = 0 [pid 5079] lstat("./109/binderfs", [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5735] chdir("./113" [pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5735] <... chdir resumed>) = 0 [pid 5732] <... openat resumed>) = 3 [pid 5079] unlink("./109/binderfs" [pid 5735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5733] <... prctl resumed>) = 0 [pid 5732] write(3, "1000", 4 [pid 5079] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5736 attached [pid 5735] <... prctl resumed>) = 0 [pid 5733] setpgid(0, 0 [pid 5732] <... write resumed>) = 4 [pid 5079] getdents64(3, [pid 5735] setpgid(0, 0 [pid 5733] <... setpgid resumed>) = 0 [pid 5732] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5736 [pid 5735] <... setpgid resumed>) = 0 [pid 5734] chdir("./101" [pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5732] <... close resumed>) = 0 [pid 5079] close(3 [pid 5736] chdir("./105" [pid 5735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5734] <... chdir resumed>) = 0 [pid 5733] <... openat resumed>) = 3 [pid 5732] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... close resumed>) = 0 [pid 5736] <... chdir resumed>) = 0 [pid 5735] <... openat resumed>) = 3 [pid 5734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5733] write(3, "1000", 4 [pid 5732] <... symlink resumed>) = 0 [pid 5079] rmdir("./109" [pid 5736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5735] write(3, "1000", 4 [pid 5734] <... prctl resumed>) = 0 [pid 5733] <... write resumed>) = 4 [pid 5732] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... rmdir resumed>) = 0 [pid 5736] <... prctl resumed>) = 0 [pid 5735] <... write resumed>) = 4 [pid 5734] setpgid(0, 0 [pid 5733] close(3 [pid 5732] <... madvise resumed>) = 0 [pid 5079] mkdir("./110", 0777 [pid 5736] setpgid(0, 0 [pid 5735] close(3 [pid 5734] <... setpgid resumed>) = 0 [pid 5733] <... close resumed>) = 0 [pid 5732] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... mkdir resumed>) = 0 [pid 5736] <... setpgid resumed>) = 0 [pid 5735] <... close resumed>) = 0 [pid 5734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5733] symlink("/dev/binderfs", "./binderfs" [pid 5732] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5737 attached [pid 5736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5735] symlink("/dev/binderfs", "./binderfs" [pid 5734] <... openat resumed>) = 3 [pid 5733] <... symlink resumed>) = 0 [pid 5732] write(3, "1", 1 [pid 5737] chdir("./110" [pid 5736] <... openat resumed>) = 3 [pid 5735] <... symlink resumed>) = 0 [pid 5734] write(3, "1000", 4 [pid 5733] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5732] <... write resumed>) = 1 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5737 [pid 5736] write(3, "1000", 4 [pid 5735] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5734] <... write resumed>) = 4 [pid 5733] <... madvise resumed>) = 0 [pid 5732] write(3, "\x32\x00", 2 [pid 5737] <... chdir resumed>) = 0 [pid 5736] <... write resumed>) = 4 [pid 5735] <... madvise resumed>) = 0 [pid 5734] close(3 [pid 5733] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5732] <... write resumed>) = 2 [pid 5736] close(3 [pid 5735] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5734] <... close resumed>) = 0 [pid 5732] exit_group(0 [pid 5733] <... openat resumed>) = 3 [pid 5736] <... close resumed>) = 0 [pid 5735] <... openat resumed>) = 3 [pid 5734] symlink("/dev/binderfs", "./binderfs" [pid 5733] write(3, "1", 1 [pid 5732] <... exit_group resumed>) = ? [pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5736] symlink("/dev/binderfs", "./binderfs" [pid 5735] write(3, "1", 1 [pid 5734] <... symlink resumed>) = 0 [pid 5733] <... write resumed>) = 1 [pid 5732] +++ exited with 0 +++ [pid 5737] <... prctl resumed>) = 0 [pid 5736] <... symlink resumed>) = 0 [pid 5735] <... write resumed>) = 1 [pid 5734] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5733] write(3, "\x32\x00", 2 [pid 5737] setpgid(0, 0 [pid 5736] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5735] write(3, "\x32\x00", 2 [pid 5734] <... madvise resumed>) = 0 [pid 5735] <... write resumed>) = 2 [pid 5734] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5736] <... madvise resumed>) = 0 [pid 5733] <... write resumed>) = 2 [pid 5737] <... setpgid resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5736] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5735] exit_group(0 [pid 5734] <... openat resumed>) = 3 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5736] <... openat resumed>) = 3 [pid 5735] <... exit_group resumed>) = ? [pid 5734] write(3, "1", 1 [pid 5733] exit_group(0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5736] write(3, "1", 1 [pid 5735] +++ exited with 0 +++ [pid 5734] <... write resumed>) = 1 [pid 5733] <... exit_group resumed>) = ? [pid 5736] <... write resumed>) = 1 [pid 5734] write(3, "\x32\x00", 2 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5737] <... openat resumed>) = 3 [pid 5736] write(3, "\x32\x00", 2 [pid 5734] <... write resumed>) = 2 [pid 5733] +++ exited with 0 +++ [pid 5737] write(3, "1000", 4 [pid 5736] <... write resumed>) = 2 [pid 5734] exit_group(0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5736] exit_group(0 [pid 5734] <... exit_group resumed>) = ? [pid 5737] <... write resumed>) = 4 [pid 5080] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5736] <... exit_group resumed>) = ? [pid 5734] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5736] +++ exited with 0 +++ [pid 5075] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... openat resumed>) = 3 [pid 5737] close(3 [pid 5081] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5075] fstat(3, [pid 5737] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5737] symlink("/dev/binderfs", "./binderfs" [pid 5081] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5081] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5076] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5737] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5737] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./101/binderfs", [pid 5737] <... madvise resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5737] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] lstat("./113/binderfs", [pid 5077] lstat("./109/binderfs", [pid 5076] fstat(3, [pid 5075] unlink("./101/binderfs" [pid 5737] <... openat resumed>) = 3 [pid 5081] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5737] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] unlink("./113/binderfs" [pid 5077] unlink("./109/binderfs" [pid 5076] getdents64(3, [pid 5075] getdents64(3, [pid 5737] <... write resumed>) = 1 [pid 5081] lstat("./113/binderfs", [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5737] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] close(3 [pid 5737] <... write resumed>) = 2 [pid 5081] unlink("./113/binderfs" [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5076] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... close resumed>) = 0 [pid 5737] exit_group(0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] rmdir("./101" [pid 5737] <... exit_group resumed>) = ? [pid 5081] getdents64(3, [pid 5080] close(3 [pid 5077] close(3 [pid 5076] lstat("./105/binderfs", [pid 5075] <... rmdir resumed>) = 0 [pid 5737] +++ exited with 0 +++ [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] mkdir("./102", 0777 [pid 5081] close(3 [pid 5080] rmdir("./113" [pid 5077] rmdir("./109" [pid 5076] unlink("./105/binderfs" [pid 5075] <... mkdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5738 attached [pid 5081] rmdir("./113" [pid 5080] mkdir("./114", 0777 [pid 5079] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./110", 0777 [pid 5076] getdents64(3, [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5738 [pid 5081] mkdir("./114", 0777 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5739 [pid 5079] fstat(3, [pid 5076] rmdir("./105" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5740 [pid 5076] mkdir("./106", 0777 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5741 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... mkdir resumed>) = 0 [pid 5079] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5742 attached ./strace-static-x86_64: Process 5740 attached [pid 5738] chdir("./102" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./110/binderfs", [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5742 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5739 attached [pid 5738] <... chdir resumed>) = 0 [pid 5079] unlink("./110/binderfs" [pid 5742] chdir("./106" [pid 5740] chdir("./110" [pid 5739] chdir("./114" [pid 5738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... unlink resumed>) = 0 [pid 5739] <... chdir resumed>) = 0 [pid 5738] <... prctl resumed>) = 0 [pid 5079] getdents64(3, [pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5738] setpgid(0, 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5741 attached [pid 5740] <... chdir resumed>) = 0 [pid 5739] <... prctl resumed>) = 0 [pid 5738] <... setpgid resumed>) = 0 [pid 5079] close(3 [pid 5741] chdir("./114" [pid 5740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5739] setpgid(0, 0 [pid 5738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... close resumed>) = 0 [pid 5741] <... chdir resumed>) = 0 [pid 5739] <... setpgid resumed>) = 0 [pid 5079] rmdir("./110" [pid 5742] <... chdir resumed>) = 0 [pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5740] <... prctl resumed>) = 0 [pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5738] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5741] <... prctl resumed>) = 0 [pid 5740] setpgid(0, 0 [pid 5739] <... openat resumed>) = 3 [pid 5738] write(3, "1000", 4 [pid 5079] mkdir("./111", 0777 [pid 5742] <... prctl resumed>) = 0 [pid 5741] setpgid(0, 0 [pid 5740] <... setpgid resumed>) = 0 [pid 5739] write(3, "1000", 4 [pid 5738] <... write resumed>) = 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5741] <... setpgid resumed>) = 0 [pid 5739] <... write resumed>) = 4 [pid 5738] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5743 attached [pid 5742] setpgid(0, 0 [pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5739] close(3 [pid 5738] <... close resumed>) = 0 [pid 5742] <... setpgid resumed>) = 0 [pid 5741] <... openat resumed>) = 3 [pid 5739] <... close resumed>) = 0 [pid 5740] <... openat resumed>) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5743 [pid 5738] symlink("/dev/binderfs", "./binderfs" [pid 5742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5741] write(3, "1000", 4 [pid 5740] write(3, "1000", 4 [pid 5739] symlink("/dev/binderfs", "./binderfs" [pid 5742] <... openat resumed>) = 3 [pid 5741] <... write resumed>) = 4 [pid 5740] <... write resumed>) = 4 [pid 5739] <... symlink resumed>) = 0 [pid 5738] <... symlink resumed>) = 0 [pid 5742] write(3, "1000", 4 [pid 5741] close(3 [pid 5740] close(3 [pid 5739] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5738] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5743] chdir("./111" [pid 5742] <... write resumed>) = 4 [pid 5741] <... close resumed>) = 0 [pid 5740] <... close resumed>) = 0 [pid 5739] <... madvise resumed>) = 0 [pid 5738] <... madvise resumed>) = 0 [pid 5742] close(3 [pid 5741] symlink("/dev/binderfs", "./binderfs" [pid 5740] symlink("/dev/binderfs", "./binderfs" [pid 5739] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5743] <... chdir resumed>) = 0 [pid 5742] <... close resumed>) = 0 [pid 5741] <... symlink resumed>) = 0 [pid 5740] <... symlink resumed>) = 0 [pid 5739] <... openat resumed>) = 3 [pid 5738] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5742] symlink("/dev/binderfs", "./binderfs" [pid 5741] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5740] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5739] write(3, "1", 1 [pid 5738] <... openat resumed>) = 3 [pid 5743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5742] <... symlink resumed>) = 0 [pid 5741] <... madvise resumed>) = 0 [pid 5740] <... madvise resumed>) = 0 [pid 5739] <... write resumed>) = 1 [pid 5738] write(3, "1", 1 [pid 5743] <... prctl resumed>) = 0 [pid 5742] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5741] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5740] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5739] write(3, "\x32\x00", 2 [pid 5738] <... write resumed>) = 1 [pid 5743] setpgid(0, 0 [pid 5742] <... madvise resumed>) = 0 [pid 5741] <... openat resumed>) = 3 [pid 5740] <... openat resumed>) = 3 [pid 5739] <... write resumed>) = 2 [pid 5738] write(3, "\x32\x00", 2 [pid 5743] <... setpgid resumed>) = 0 [pid 5742] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5741] write(3, "1", 1 [pid 5740] write(3, "1", 1 [pid 5739] exit_group(0 [pid 5738] <... write resumed>) = 2 [pid 5743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5742] <... openat resumed>) = 3 [pid 5741] <... write resumed>) = 1 [pid 5740] <... write resumed>) = 1 [pid 5739] <... exit_group resumed>) = ? [pid 5738] exit_group(0 [pid 5743] <... openat resumed>) = 3 [pid 5742] write(3, "1", 1 [pid 5741] write(3, "\x32\x00", 2 [pid 5740] write(3, "\x32\x00", 2 [pid 5739] +++ exited with 0 +++ [pid 5738] <... exit_group resumed>) = ? [pid 5743] write(3, "1000", 4 [pid 5742] <... write resumed>) = 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, [pid 5742] write(3, "\x32\x00", 2 [pid 5738] +++ exited with 0 +++ [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5743] <... write resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] lstat("./114/binderfs", [pid 5075] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5743] close(3 [pid 5742] <... write resumed>) = 2 [pid 5741] <... write resumed>) = 2 [pid 5740] <... write resumed>) = 2 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5743] <... close resumed>) = 0 [pid 5742] exit_group(0 [pid 5741] exit_group(0 [pid 5740] exit_group(0 [pid 5080] unlink("./114/binderfs" [pid 5075] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5743] symlink("/dev/binderfs", "./binderfs" [pid 5742] <... exit_group resumed>) = ? [pid 5741] <... exit_group resumed>) = ? [pid 5740] <... exit_group resumed>) = ? [pid 5080] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5742] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] close(3 [pid 5740] +++ exited with 0 +++ [pid 5080] <... close resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] fstat(3, [pid 5743] <... symlink resumed>) = 0 [pid 5080] rmdir("./114" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5743] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5741] +++ exited with 0 +++ [pid 5080] <... rmdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5743] <... madvise resumed>) = 0 [pid 5080] mkdir("./115", 0777 [pid 5077] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5743] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5743] <... openat resumed>) = 3 [pid 5081] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5744 attached [pid 5743] write(3, "1", 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5743] <... write resumed>) = 1 [pid 5081] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5744 [pid 5077] fstat(3, [pid 5076] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5743] write(3, "\x32\x00", 2 [pid 5081] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] fstat(3, [pid 5077] getdents64(3, [pid 5076] fstat(3, [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5743] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5077] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5075] lstat("./102/binderfs", [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5743] exit_group(0 [pid 5081] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] lstat("./110/binderfs", [pid 5076] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5743] <... exit_group resumed>) = ? [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./102/binderfs" [pid 5081] lstat("./114/binderfs", [pid 5077] unlink("./110/binderfs" [pid 5076] lstat("./106/binderfs", [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5743] +++ exited with 0 +++ [pid 5081] unlink("./114/binderfs" [pid 5077] getdents64(3, [pid 5076] unlink("./106/binderfs" [pid 5075] getdents64(3, [pid 5744] chdir("./115" [pid 5081] <... unlink resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5744] <... chdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5743, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5075] close(3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] close(3 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] rmdir("./110" [pid 5076] close(3 [pid 5075] <... close resumed>) = 0 [pid 5744] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] rmdir("./102" [pid 5081] rmdir("./114" [pid 5077] mkdir("./111", 0777 [pid 5076] rmdir("./106" [pid 5744] setpgid(0, 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5744] <... setpgid resumed>) = 0 [pid 5081] mkdir("./115", 0777 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./107", 0777 [pid 5075] mkdir("./103", 0777./strace-static-x86_64: Process 5745 attached [pid 5744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... mkdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5745 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5746 attached [pid 5745] chdir("./111" [pid 5744] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5746 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5747 [pid 5745] <... chdir resumed>) = 0 [pid 5744] write(3, "1000", 4 [pid 5079] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5744] <... write resumed>) = 4 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5744] close(3 [pid 5745] <... prctl resumed>) = 0 [pid 5745] setpgid(0, 0 [pid 5079] lstat("./111/binderfs", ./strace-static-x86_64: Process 5748 attached ./strace-static-x86_64: Process 5747 attached [pid 5746] chdir("./115" [pid 5745] <... setpgid resumed>) = 0 [pid 5744] <... close resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5748 [pid 5746] <... chdir resumed>) = 0 [pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5744] symlink("/dev/binderfs", "./binderfs" [pid 5079] unlink("./111/binderfs" [pid 5748] chdir("./103" [pid 5747] chdir("./107" [pid 5746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5745] <... openat resumed>) = 3 [pid 5744] <... symlink resumed>) = 0 [pid 5746] <... prctl resumed>) = 0 [pid 5745] write(3, "1000", 4 [pid 5744] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... unlink resumed>) = 0 [pid 5748] <... chdir resumed>) = 0 [pid 5747] <... chdir resumed>) = 0 [pid 5746] setpgid(0, 0 [pid 5745] <... write resumed>) = 4 [pid 5744] <... madvise resumed>) = 0 [pid 5079] getdents64(3, [pid 5748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5746] <... setpgid resumed>) = 0 [pid 5745] close(3 [pid 5744] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5748] <... prctl resumed>) = 0 [pid 5747] <... prctl resumed>) = 0 [pid 5746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5745] <... close resumed>) = 0 [pid 5744] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5748] setpgid(0, 0 [pid 5747] setpgid(0, 0 [pid 5746] <... openat resumed>) = 3 [pid 5745] symlink("/dev/binderfs", "./binderfs" [pid 5744] write(3, "1", 1 [pid 5079] <... close resumed>) = 0 [pid 5748] <... setpgid resumed>) = 0 [pid 5747] <... setpgid resumed>) = 0 [pid 5746] write(3, "1000", 4 [pid 5745] <... symlink resumed>) = 0 [pid 5744] <... write resumed>) = 1 [pid 5079] rmdir("./111" [pid 5748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5746] <... write resumed>) = 4 [pid 5745] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5744] write(3, "\x32\x00", 2 [pid 5079] <... rmdir resumed>) = 0 [pid 5748] <... openat resumed>) = 3 [pid 5747] <... openat resumed>) = 3 [pid 5746] close(3 [pid 5745] <... madvise resumed>) = 0 [pid 5079] mkdir("./112", 0777 [pid 5748] write(3, "1000", 4 [pid 5747] write(3, "1000", 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5748] <... write resumed>) = 4 [pid 5747] <... write resumed>) = 4 [pid 5744] <... write resumed>) = 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5746] <... close resumed>) = 0 ./strace-static-x86_64: Process 5749 attached [pid 5748] close(3 [pid 5747] close(3 [pid 5746] symlink("/dev/binderfs", "./binderfs" [pid 5745] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5744] exit_group(0 [pid 5748] <... close resumed>) = 0 [pid 5747] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5749 [pid 5746] <... symlink resumed>) = 0 [pid 5748] symlink("/dev/binderfs", "./binderfs" [pid 5747] symlink("/dev/binderfs", "./binderfs" [pid 5745] <... openat resumed>) = 3 [pid 5744] <... exit_group resumed>) = ? [pid 5746] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5748] <... symlink resumed>) = 0 [pid 5747] <... symlink resumed>) = 0 [pid 5745] write(3, "1", 1 [pid 5748] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5747] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5748] <... madvise resumed>) = 0 [pid 5747] <... madvise resumed>) = 0 [pid 5744] +++ exited with 0 +++ [pid 5748] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5747] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5746] <... madvise resumed>) = 0 [pid 5745] <... write resumed>) = 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5749] chdir("./112" [pid 5748] <... openat resumed>) = 3 [pid 5747] <... openat resumed>) = 3 [pid 5746] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5745] write(3, "\x32\x00", 2 [pid 5748] write(3, "1", 1 [pid 5747] write(3, "1", 1 [pid 5746] <... openat resumed>) = 3 [pid 5748] <... write resumed>) = 1 [pid 5747] <... write resumed>) = 1 [pid 5746] write(3, "1", 1 [pid 5745] <... write resumed>) = 2 [pid 5749] <... chdir resumed>) = 0 [pid 5747] write(3, "\x32\x00", 2 [pid 5746] <... write resumed>) = 1 [pid 5080] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5748] write(3, "\x32\x00", 2 [pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5748] <... write resumed>) = 2 [pid 5747] <... write resumed>) = 2 [pid 5746] write(3, "\x32\x00", 2 [pid 5745] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5749] <... prctl resumed>) = 0 [pid 5748] exit_group(0 [pid 5747] exit_group(0 [pid 5746] <... write resumed>) = 2 [pid 5745] <... exit_group resumed>) = ? [pid 5080] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5749] setpgid(0, 0 [pid 5748] <... exit_group resumed>) = ? [pid 5747] <... exit_group resumed>) = ? [pid 5746] exit_group(0 [pid 5749] <... setpgid resumed>) = 0 [pid 5748] +++ exited with 0 +++ [pid 5747] +++ exited with 0 +++ [pid 5746] <... exit_group resumed>) = ? [pid 5745] +++ exited with 0 +++ [pid 5080] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5746] +++ exited with 0 +++ [pid 5076] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] fstat(3, [pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5749] <... openat resumed>) = 3 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5749] write(3, "1000", 4 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5749] <... write resumed>) = 4 [pid 5080] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5749] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5749] <... close resumed>) = 0 [pid 5081] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./115/binderfs", [pid 5077] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5749] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./107/binderfs", [pid 5081] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5749] <... symlink resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] unlink("./115/binderfs" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./107/binderfs" [pid 5075] fstat(3, [pid 5749] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5080] <... unlink resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5749] <... madvise resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] getdents64(3, [pid 5749] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5077] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] getdents64(3, [pid 5749] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5749] write(3, "1", 1 [pid 5081] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] close(3 [pid 5077] lstat("./111/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5749] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5076] rmdir("./107" [pid 5081] lstat("./115/binderfs", [pid 5076] <... rmdir resumed>) = 0 [pid 5749] write(3, "\x32\x00", 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] rmdir("./115" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] mkdir("./108", 0777 [pid 5075] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] unlink("./115/binderfs" [pid 5076] <... mkdir resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] unlink("./111/binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5750 attached [pid 5749] <... write resumed>) = 2 [pid 5081] getdents64(3, [pid 5080] mkdir("./116", 0777 [pid 5077] <... unlink resumed>) = 0 [pid 5075] lstat("./103/binderfs", [pid 5749] exit_group(0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5750 [pid 5080] <... mkdir resumed>) = 0 [pid 5750] chdir("./108" [pid 5749] <... exit_group resumed>) = ? [pid 5081] close(3 [pid 5077] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5750] <... chdir resumed>) = 0 [pid 5750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5749] +++ exited with 0 +++ [pid 5750] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] unlink("./103/binderfs" [pid 5750] setpgid(0, 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5750] <... setpgid resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5751 attached [pid 5750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] rmdir("./115" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5751 [pid 5077] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5751] chdir("./116" [pid 5750] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5751] <... chdir resumed>) = 0 [pid 5750] write(3, "1000", 4 [pid 5081] mkdir("./116", 0777 [pid 5079] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5750] <... write resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5751] <... prctl resumed>) = 0 [pid 5750] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./111" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5751] setpgid(0, 0 [pid 5750] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5751] <... setpgid resumed>) = 0 [pid 5750] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5077] mkdir("./112", 0777 [pid 5075] <... close resumed>) = 0 [pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5750] <... symlink resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5752 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5752 attached [pid 5750] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5075] rmdir("./103" [pid 5752] chdir("./116" [pid 5751] <... openat resumed>) = 3 [pid 5750] <... madvise resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5752] <... chdir resumed>) = 0 [pid 5079] lstat("./112/binderfs", [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... rmdir resumed>) = 0 [pid 5752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5751] write(3, "1000", 4 [pid 5750] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5752] <... prctl resumed>) = 0 [pid 5079] unlink("./112/binderfs" [pid 5752] setpgid(0, 0 [pid 5079] <... unlink resumed>) = 0 [pid 5075] mkdir("./104", 0777 [pid 5752] <... setpgid resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5753 [pid 5752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5753 attached [pid 5752] <... openat resumed>) = 3 [pid 5750] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5753] chdir("./112" [pid 5752] write(3, "1000", 4 [pid 5751] <... write resumed>) = 4 [pid 5750] write(3, "1", 1 [pid 5079] <... close resumed>) = 0 [pid 5753] <... chdir resumed>) = 0 [pid 5752] <... write resumed>) = 4 [pid 5079] rmdir("./112" [pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5752] close(3 [pid 5751] close(3 [pid 5750] <... write resumed>) = 1 [pid 5079] <... rmdir resumed>) = 0 [pid 5753] <... prctl resumed>) = 0 [pid 5752] <... close resumed>) = 0 [pid 5079] mkdir("./113", 0777 [pid 5753] setpgid(0, 0 [pid 5752] symlink("/dev/binderfs", "./binderfs" [pid 5751] <... close resumed>) = 0 [pid 5750] write(3, "\x32\x00", 2 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5754 ./strace-static-x86_64: Process 5754 attached [pid 5753] <... setpgid resumed>) = 0 [pid 5752] <... symlink resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5754] chdir("./104" [pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5752] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5751] symlink("/dev/binderfs", "./binderfs" [pid 5750] <... write resumed>) = 2 [pid 5754] <... chdir resumed>) = 0 [pid 5753] <... openat resumed>) = 3 [pid 5752] <... madvise resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5755 [pid 5754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5753] write(3, "1000", 4 [pid 5752] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5751] <... symlink resumed>) = 0 [pid 5750] exit_group(0 [pid 5754] <... prctl resumed>) = 0 [pid 5753] <... write resumed>) = 4 [pid 5752] <... openat resumed>) = 3 [pid 5751] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5750] <... exit_group resumed>) = ? [pid 5754] setpgid(0, 0 [pid 5753] close(3 [pid 5752] write(3, "1", 1 [pid 5754] <... setpgid resumed>) = 0 [pid 5753] <... close resumed>) = 0 [pid 5752] <... write resumed>) = 1 [pid 5751] <... madvise resumed>) = 0 [pid 5754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5753] symlink("/dev/binderfs", "./binderfs" [pid 5752] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5755 attached [pid 5754] <... openat resumed>) = 3 [pid 5753] <... symlink resumed>) = 0 [pid 5752] <... write resumed>) = 2 [pid 5751] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5750] +++ exited with 0 +++ [pid 5755] chdir("./113" [pid 5754] write(3, "1000", 4 [pid 5753] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5752] exit_group(0 [pid 5751] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5755] <... chdir resumed>) = 0 [pid 5754] <... write resumed>) = 4 [pid 5753] <... madvise resumed>) = 0 [pid 5752] <... exit_group resumed>) = ? [pid 5751] write(3, "1", 1 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5754] close(3 [pid 5753] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5752] +++ exited with 0 +++ [pid 5751] <... write resumed>) = 1 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5755] <... prctl resumed>) = 0 [pid 5754] <... close resumed>) = 0 [pid 5753] <... openat resumed>) = 3 [pid 5751] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5755] setpgid(0, 0 [pid 5754] symlink("/dev/binderfs", "./binderfs" [pid 5753] write(3, "1", 1 [pid 5755] <... setpgid resumed>) = 0 [pid 5754] <... symlink resumed>) = 0 [pid 5753] <... write resumed>) = 1 [pid 5751] <... write resumed>) = 2 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5754] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5753] write(3, "\x32\x00", 2 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5755] <... openat resumed>) = 3 [pid 5754] <... madvise resumed>) = 0 [pid 5753] <... write resumed>) = 2 [pid 5751] exit_group(0 [pid 5076] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5755] write(3, "1000", 4 [pid 5754] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5751] <... exit_group resumed>) = ? [pid 5755] <... write resumed>) = 4 [pid 5754] <... openat resumed>) = 3 [pid 5753] exit_group(0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5755] close(3 [pid 5754] write(3, "1", 1 [pid 5753] <... exit_group resumed>) = ? [pid 5081] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5755] <... close resumed>) = 0 [pid 5754] <... write resumed>) = 1 [pid 5753] +++ exited with 0 +++ [pid 5751] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5755] symlink("/dev/binderfs", "./binderfs" [pid 5754] write(3, "\x32\x00", 2 [pid 5081] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5755] <... symlink resumed>) = 0 [pid 5754] <... write resumed>) = 2 [pid 5081] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] fstat(3, [pid 5755] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5754] exit_group(0 [pid 5081] fstat(3, [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5755] <... madvise resumed>) = 0 [pid 5754] <... exit_group resumed>) = ? [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5755] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5754] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5755] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5755] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5755] <... write resumed>) = 1 [pid 5081] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5755] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5755] <... write resumed>) = 2 [pid 5081] lstat("./116/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./108/binderfs", [pid 5075] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5755] exit_group(0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5755] <... exit_group resumed>) = ? [pid 5081] unlink("./116/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5755] +++ exited with 0 +++ [pid 5077] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] fstat(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] unlink("./108/binderfs" [pid 5075] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] getdents64(3, [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] fstat(3, [pid 5080] getdents64(3, [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] fstat(3, [pid 5081] close(3 [pid 5080] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5081] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] rmdir("./116" [pid 5080] lstat("./116/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] close(3 [pid 5075] getdents64(3, [pid 5079] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] mkdir("./117", 0777 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] fstat(3, [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] unlink("./116/binderfs" [pid 5079] unlink("./113/binderfs" [pid 5077] lstat("./112/binderfs", [pid 5076] rmdir("./108" [pid 5075] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5756 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] unlink("./112/binderfs" [pid 5076] mkdir("./109", 0777 [pid 5075] lstat("./104/binderfs", [pid 5080] close(3 [pid 5079] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] unlink("./104/binderfs" [pid 5080] <... close resumed>) = 0 [pid 5079] rmdir("./113" [pid 5077] getdents64(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5756 attached [pid 5080] rmdir("./116" [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5079] mkdir("./114", 0777 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5080] mkdir("./117", 0777 [pid 5756] chdir("./117" [pid 5077] close(3 [pid 5075] rmdir("./104" [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5758 [pid 5077] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5757 [pid 5075] <... rmdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] rmdir("./112" [pid 5075] mkdir("./105", 0777 [pid 5756] <... chdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5757 attached [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5758 attached ./strace-static-x86_64: Process 5760 attached [pid 5757] chdir("./109" [pid 5756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5759 [pid 5077] <... rmdir resumed>) = 0 [pid 5757] <... chdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5760 [pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5757] setpgid(0, 0) = 0 [pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5759 attached [pid 5756] <... prctl resumed>) = 0 [pid 5758] chdir("./114" [pid 5757] <... openat resumed>) = 3 [pid 5077] mkdir("./113", 0777 [pid 5759] chdir("./117" [pid 5758] <... chdir resumed>) = 0 [pid 5757] write(3, "1000", 4 [pid 5756] setpgid(0, 0 [pid 5759] <... chdir resumed>) = 0 [pid 5758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5757] <... write resumed>) = 4 [pid 5756] <... setpgid resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5757] close(3 [pid 5759] <... prctl resumed>) = 0 [pid 5757] <... close resumed>) = 0 [pid 5756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5759] setpgid(0, 0 [pid 5757] symlink("/dev/binderfs", "./binderfs" [pid 5759] <... setpgid resumed>) = 0 [pid 5758] <... prctl resumed>) = 0 [pid 5757] <... symlink resumed>) = 0 [pid 5756] <... openat resumed>) = 3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5758] setpgid(0, 0 [pid 5757] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5756] write(3, "1000", 4 [pid 5759] <... openat resumed>) = 3 [pid 5758] <... setpgid resumed>) = 0 [pid 5757] <... madvise resumed>) = 0 [pid 5756] <... write resumed>) = 4 [pid 5759] write(3, "1000", 4 [pid 5757] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5756] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5761 [pid 5760] chdir("./105" [pid 5759] <... write resumed>) = 4 [pid 5758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5757] <... openat resumed>) = 3 [pid 5756] <... close resumed>) = 0 ./strace-static-x86_64: Process 5761 attached [pid 5760] <... chdir resumed>) = 0 [pid 5759] close(3 [pid 5758] <... openat resumed>) = 3 [pid 5757] write(3, "1", 1 [pid 5756] symlink("/dev/binderfs", "./binderfs" [pid 5761] chdir("./113" [pid 5760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5759] <... close resumed>) = 0 [pid 5758] write(3, "1000", 4 [pid 5757] <... write resumed>) = 1 [pid 5761] <... chdir resumed>) = 0 [pid 5760] <... prctl resumed>) = 0 [pid 5759] symlink("/dev/binderfs", "./binderfs" [pid 5758] <... write resumed>) = 4 [pid 5757] write(3, "\x32\x00", 2 [pid 5756] <... symlink resumed>) = 0 [pid 5761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5760] setpgid(0, 0 [pid 5759] <... symlink resumed>) = 0 [pid 5758] close(3 [pid 5757] <... write resumed>) = 2 [pid 5756] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5761] <... prctl resumed>) = 0 [pid 5760] <... setpgid resumed>) = 0 [pid 5759] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5758] <... close resumed>) = 0 [pid 5757] exit_group(0 [pid 5761] setpgid(0, 0 [pid 5760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5759] <... madvise resumed>) = 0 [pid 5758] symlink("/dev/binderfs", "./binderfs" [pid 5757] <... exit_group resumed>) = ? [pid 5756] <... madvise resumed>) = 0 [pid 5761] <... setpgid resumed>) = 0 [pid 5760] <... openat resumed>) = 3 [pid 5759] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5758] <... symlink resumed>) = 0 [pid 5757] +++ exited with 0 +++ [pid 5756] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5760] write(3, "1000", 4 [pid 5759] <... openat resumed>) = 3 [pid 5758] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5756] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5761] <... openat resumed>) = 3 [pid 5760] <... write resumed>) = 4 [pid 5759] write(3, "1", 1 [pid 5758] <... madvise resumed>) = 0 [pid 5756] write(3, "1", 1 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5761] write(3, "1000", 4 [pid 5760] close(3 [pid 5759] <... write resumed>) = 1 [pid 5758] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5756] <... write resumed>) = 1 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5761] <... write resumed>) = 4 [pid 5760] <... close resumed>) = 0 [pid 5759] write(3, "\x32\x00", 2 [pid 5758] <... openat resumed>) = 3 [pid 5756] write(3, "\x32\x00", 2 [pid 5761] close(3 [pid 5760] symlink("/dev/binderfs", "./binderfs" [pid 5759] <... write resumed>) = 2 [pid 5758] write(3, "1", 1 [pid 5756] <... write resumed>) = 2 [pid 5761] <... close resumed>) = 0 [pid 5760] <... symlink resumed>) = 0 [pid 5759] exit_group(0 [pid 5758] <... write resumed>) = 1 [pid 5756] exit_group(0 [pid 5076] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5761] symlink("/dev/binderfs", "./binderfs" [pid 5760] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5759] <... exit_group resumed>) = ? [pid 5758] write(3, "\x32\x00", 2 [pid 5756] <... exit_group resumed>) = ? [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5761] <... symlink resumed>) = 0 [pid 5760] <... madvise resumed>) = 0 [pid 5759] +++ exited with 0 +++ [pid 5761] madvise(0x20000000, 4194304, MADV_MERGEABLE) = 0 [pid 5761] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5761] write(3, "1", 1) = 1 [pid 5758] <... write resumed>) = 2 [pid 5756] +++ exited with 0 +++ [pid 5761] write(3, "\x32\x00", 2 [pid 5760] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5758] exit_group(0 [pid 5076] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5761] <... write resumed>) = 2 [pid 5760] <... openat resumed>) = 3 [pid 5758] <... exit_group resumed>) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... openat resumed>) = 3 [pid 5761] exit_group(0 [pid 5760] write(3, "1", 1 [pid 5758] +++ exited with 0 +++ [pid 5080] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] fstat(3, [pid 5761] <... exit_group resumed>) = ? [pid 5760] <... write resumed>) = 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5760] write(3, "\x32\x00", 2 [pid 5080] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] getdents64(3, [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5760] <... write resumed>) = 2 [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5760] exit_group(0 [pid 5081] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5761] +++ exited with 0 +++ [pid 5760] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5761, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5076] lstat("./109/binderfs", [pid 5760] +++ exited with 0 +++ [pid 5081] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] fstat(3, [pid 5080] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./109/binderfs" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... unlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] lstat("./117/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5081] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] unlink("./117/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5075] <... restart_syscall resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... unlink resumed>) = 0 [pid 5079] lstat("./114/binderfs", [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] lstat("./117/binderfs", [pid 5080] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] getdents64(3, [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] unlink("./114/binderfs" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] close(3 [pid 5081] unlink("./117/binderfs" [pid 5080] close(3 [pid 5079] <... unlink resumed>) = 0 [pid 5077] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5075] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./113/binderfs", [pid 5076] rmdir("./109" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5080] rmdir("./117" [pid 5079] close(3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] unlink("./113/binderfs" [pid 5079] rmdir("./114" [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] mkdir("./110", 0777 [pid 5081] close(3 [pid 5080] mkdir("./118", 0777 [pid 5079] mkdir("./115", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5081] rmdir("./117" [pid 5080] <... mkdir resumed>) = 0 [pid 5077] rmdir("./113" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, [pid 5081] <... rmdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5762 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./114", 0777) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5762 attached [pid 5081] mkdir("./118", 0777 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5763 [pid 5075] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5765 [pid 5081] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5763 attached [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5764 [pid 5763] chdir("./110" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5764 attached [pid 5763] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5764] chdir("./118" [pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] lstat("./105/binderfs", ./strace-static-x86_64: Process 5765 attached [pid 5764] <... chdir resumed>) = 0 [pid 5763] <... prctl resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5766 [pid 5765] chdir("./114" [pid 5764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5763] setpgid(0, 0 [pid 5075] unlink("./105/binderfs" [pid 5765] <... chdir resumed>) = 0 [pid 5764] <... prctl resumed>) = 0 [pid 5763] <... setpgid resumed>) = 0 [pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5764] setpgid(0, 0 [pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... unlink resumed>) = 0 [pid 5765] <... prctl resumed>) = 0 [pid 5764] <... setpgid resumed>) = 0 [pid 5763] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5765] setpgid(0, 0 [pid 5764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5763] write(3, "1000", 4 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5766 attached [pid 5765] <... setpgid resumed>) = 0 [pid 5764] <... openat resumed>) = 3 [pid 5763] <... write resumed>) = 4 [pid 5762] chdir("./115" [pid 5075] close(3 [pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5764] write(3, "1000", 4 [pid 5763] close(3 [pid 5075] <... close resumed>) = 0 [pid 5762] <... chdir resumed>) = 0 [pid 5766] chdir("./118" [pid 5765] <... openat resumed>) = 3 [pid 5764] <... write resumed>) = 4 [pid 5763] <... close resumed>) = 0 [pid 5762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] rmdir("./105" [pid 5765] write(3, "1000", 4 [pid 5764] close(3 [pid 5763] symlink("/dev/binderfs", "./binderfs" [pid 5765] <... write resumed>) = 4 [pid 5766] <... chdir resumed>) = 0 [pid 5764] <... close resumed>) = 0 [pid 5763] <... symlink resumed>) = 0 [pid 5762] <... prctl resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5765] close(3 [pid 5764] symlink("/dev/binderfs", "./binderfs" [pid 5763] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5762] setpgid(0, 0 [pid 5075] mkdir("./106", 0777 [pid 5766] <... prctl resumed>) = 0 [pid 5765] <... close resumed>) = 0 [pid 5764] <... symlink resumed>) = 0 [pid 5763] <... madvise resumed>) = 0 [pid 5762] <... setpgid resumed>) = 0 [pid 5765] symlink("/dev/binderfs", "./binderfs" [pid 5764] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5763] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5075] <... mkdir resumed>) = 0 [pid 5766] setpgid(0, 0 [pid 5765] <... symlink resumed>) = 0 [pid 5764] <... madvise resumed>) = 0 [pid 5763] <... openat resumed>) = 3 [pid 5762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5765] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5764] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5763] write(3, "1", 1 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5766] <... setpgid resumed>) = 0 [pid 5765] <... madvise resumed>) = 0 [pid 5764] <... openat resumed>) = 3 [pid 5763] <... write resumed>) = 1 [pid 5762] <... openat resumed>) = 3 [pid 5766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5765] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5764] write(3, "1", 1 [pid 5763] write(3, "\x32\x00", 2 [pid 5762] write(3, "1000", 4 [pid 5766] <... openat resumed>) = 3 [pid 5765] <... openat resumed>) = 3 [pid 5764] <... write resumed>) = 1 [pid 5763] <... write resumed>) = 2 [pid 5762] <... write resumed>) = 4 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5767 [pid 5766] write(3, "1000", 4 [pid 5765] write(3, "1", 1 [pid 5764] write(3, "\x32\x00", 2 [pid 5763] exit_group(0 [pid 5762] close(3./strace-static-x86_64: Process 5767 attached [pid 5766] <... write resumed>) = 4 [pid 5765] <... write resumed>) = 1 [pid 5764] <... write resumed>) = 2 [pid 5763] <... exit_group resumed>) = ? [pid 5762] <... close resumed>) = 0 [pid 5767] chdir("./106" [pid 5766] close(3 [pid 5765] write(3, "\x32\x00", 2 [pid 5764] exit_group(0 [pid 5763] +++ exited with 0 +++ [pid 5762] symlink("/dev/binderfs", "./binderfs" [pid 5767] <... chdir resumed>) = 0 [pid 5766] <... close resumed>) = 0 [pid 5765] <... write resumed>) = 2 [pid 5764] <... exit_group resumed>) = ? [pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5766] symlink("/dev/binderfs", "./binderfs" [pid 5765] exit_group(0 [pid 5764] +++ exited with 0 +++ [pid 5762] <... symlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5767] <... prctl resumed>) = 0 [pid 5766] <... symlink resumed>) = 0 [pid 5765] <... exit_group resumed>) = ? [pid 5762] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5767] setpgid(0, 0 [pid 5766] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5765] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5767] <... setpgid resumed>) = 0 [pid 5766] <... madvise resumed>) = 0 [pid 5762] <... madvise resumed>) = 0 [pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5767] <... openat resumed>) = 3 [pid 5766] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5762] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5767] write(3, "1000", 4 [pid 5766] <... openat resumed>) = 3 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5767] <... write resumed>) = 4 [pid 5762] <... openat resumed>) = 3 [pid 5766] write(3, "1", 1 [pid 5080] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5767] close(3 [pid 5766] <... write resumed>) = 1 [pid 5762] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5767] <... close resumed>) = 0 [pid 5766] write(3, "\x32\x00", 2 [pid 5762] <... write resumed>) = 1 [pid 5080] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5767] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5767] <... symlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5767] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... openat resumed>) = 3 [pid 5767] <... madvise resumed>) = 0 [pid 5077] fstat(3, [pid 5767] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5767] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5767] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5767] <... write resumed>) = 1 [pid 5766] <... write resumed>) = 2 [pid 5762] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5077] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5767] write(3, "\x32\x00", 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5767] <... write resumed>) = 2 [pid 5762] <... write resumed>) = 2 [pid 5080] fstat(3, [pid 5077] lstat("./114/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5767] exit_group(0 [pid 5766] exit_group(0 [pid 5762] exit_group(0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5767] <... exit_group resumed>) = ? [pid 5766] <... exit_group resumed>) = ? [pid 5762] <... exit_group resumed>) = ? [pid 5080] getdents64(3, [pid 5077] unlink("./114/binderfs" [pid 5767] +++ exited with 0 +++ [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5080] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5076] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] lstat("./118/binderfs", [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5077] <... close resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] rmdir("./114" [pid 5080] unlink("./118/binderfs" [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./115", 0777 [pid 5762] +++ exited with 0 +++ [pid 5080] <... unlink resumed>) = 0 [pid 5766] +++ exited with 0 +++ [pid 5077] <... mkdir resumed>) = 0 [pid 5076] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5762, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] lstat("./110/binderfs", [pid 5075] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] close(3 [pid 5079] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5768 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./110/binderfs" [pid 5075] <... openat resumed>) = 3 [pid 5080] rmdir("./118" [pid 5079] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5768 attached [pid 5079] <... openat resumed>) = 3 [pid 5768] chdir("./115" [pid 5080] <... rmdir resumed>) = 0 [pid 5079] fstat(3, [pid 5075] fstat(3, [pid 5768] <... chdir resumed>) = 0 [pid 5081] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] mkdir("./119", 0777 [pid 5076] getdents64(3, [pid 5768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5768] <... prctl resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5768] setpgid(0, 0 [pid 5081] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] getdents64(3, [pid 5075] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5768] <... setpgid resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... openat resumed>) = 3 [pid 5079] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(3 [pid 5075] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5768] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5768] write(3, "1000", 4 [pid 5076] <... close resumed>) = 0 [pid 5075] lstat("./106/binderfs", [pid 5768] <... write resumed>) = 4 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5769 [pid 5079] lstat("./115/binderfs", [pid 5076] rmdir("./110" [pid 5768] close(3 [pid 5081] getdents64(3, [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5768] <... close resumed>) = 0 [pid 5768] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] unlink("./115/binderfs" [pid 5076] <... rmdir resumed>) = 0 [pid 5075] unlink("./106/binderfs"./strace-static-x86_64: Process 5769 attached [pid 5768] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5769] chdir("./119" [pid 5768] <... madvise resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... unlink resumed>) = 0 [pid 5076] mkdir("./111", 0777 [pid 5075] <... unlink resumed>) = 0 [pid 5769] <... chdir resumed>) = 0 [pid 5768] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] lstat("./118/binderfs", [pid 5079] getdents64(3, [pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5768] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5769] <... prctl resumed>) = 0 [pid 5768] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5769] setpgid(0, 0 [pid 5768] <... write resumed>) = 1 [pid 5081] unlink("./118/binderfs" [pid 5079] close(3 [pid 5769] <... setpgid resumed>) = 0 [pid 5768] write(3, "\x32\x00", 2./strace-static-x86_64: Process 5770 attached [pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5768] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5769] <... openat resumed>) = 3 [pid 5768] exit_group(0 [pid 5081] getdents64(3, [pid 5079] rmdir("./115" [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5770 [pid 5075] close(3 [pid 5770] chdir("./111" [pid 5769] write(3, "1000", 4 [pid 5768] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5770] <... chdir resumed>) = 0 [pid 5769] <... write resumed>) = 4 [pid 5768] +++ exited with 0 +++ [pid 5081] close(3 [pid 5079] mkdir("./116", 0777 [pid 5075] <... close resumed>) = 0 [pid 5770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5769] close(3 [pid 5081] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5770] <... prctl resumed>) = 0 [pid 5769] <... close resumed>) = 0 [pid 5770] setpgid(0, 0 [pid 5769] symlink("/dev/binderfs", "./binderfs" [pid 5081] rmdir("./118" [pid 5079] <... mkdir resumed>) = 0 [pid 5075] rmdir("./106" [pid 5770] <... setpgid resumed>) = 0 [pid 5769] <... symlink resumed>) = 0 [pid 5077] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5769] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5770] <... openat resumed>) = 3 [pid 5769] <... madvise resumed>) = 0 [pid 5081] mkdir("./119", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 [pid 5770] write(3, "1000", 4 [pid 5769] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... openat resumed>) = 3 [pid 5770] <... write resumed>) = 4 [pid 5769] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 5770] close(3 [pid 5769] write(3, "1", 1 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5770] <... close resumed>) = 0 [pid 5769] <... write resumed>) = 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5075] mkdir("./107", 0777 [pid 5770] symlink("/dev/binderfs", "./binderfs" [pid 5769] write(3, "\x32\x00", 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5772 attached [pid 5770] <... symlink resumed>) = 0 [pid 5769] <... write resumed>) = 2 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5771 [pid 5077] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5770] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5769] exit_group(0 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5772 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5771 attached [pid 5770] <... madvise resumed>) = 0 [pid 5769] <... exit_group resumed>) = ? [pid 5077] lstat("./115/binderfs", ./strace-static-x86_64: Process 5773 attached [pid 5772] chdir("./119" [pid 5771] chdir("./116" [pid 5770] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5769] +++ exited with 0 +++ [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5771] <... chdir resumed>) = 0 [pid 5770] <... openat resumed>) = 3 [pid 5077] unlink("./115/binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5773 [pid 5772] <... chdir resumed>) = 0 [pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5770] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... unlink resumed>) = 0 [pid 5773] chdir("./107" [pid 5772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5771] <... prctl resumed>) = 0 [pid 5770] <... write resumed>) = 1 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5077] getdents64(3, [pid 5772] <... prctl resumed>) = 0 [pid 5771] setpgid(0, 0 [pid 5770] write(3, "\x32\x00", 2 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5773] <... chdir resumed>) = 0 [pid 5772] setpgid(0, 0 [pid 5771] <... setpgid resumed>) = 0 [pid 5770] <... write resumed>) = 2 [pid 5077] close(3 [pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5772] <... setpgid resumed>) = 0 [pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5770] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5773] <... prctl resumed>) = 0 [pid 5772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5771] <... openat resumed>) = 3 [pid 5770] <... exit_group resumed>) = ? [pid 5080] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./115" [pid 5773] setpgid(0, 0 [pid 5772] <... openat resumed>) = 3 [pid 5771] write(3, "1000", 4 [pid 5770] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5773] <... setpgid resumed>) = 0 [pid 5772] write(3, "1000", 4 [pid 5771] <... write resumed>) = 4 [pid 5080] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./116", 0777 [pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5772] <... write resumed>) = 4 [pid 5771] close(3 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5773] <... openat resumed>) = 3 [pid 5772] close(3 [pid 5771] <... close resumed>) = 0 [pid 5080] fstat(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5774 attached [pid 5773] write(3, "1000", 4 [pid 5772] <... close resumed>) = 0 [pid 5771] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5774] chdir("./116" [pid 5773] <... write resumed>) = 4 [pid 5772] symlink("/dev/binderfs", "./binderfs" [pid 5771] <... symlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5774 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5774] <... chdir resumed>) = 0 [pid 5773] close(3 [pid 5772] <... symlink resumed>) = 0 [pid 5771] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5773] <... close resumed>) = 0 [pid 5772] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5771] <... madvise resumed>) = 0 [pid 5080] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5772] <... madvise resumed>) = 0 [pid 5771] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5773] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5774] <... prctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5772] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5771] <... openat resumed>) = 3 [pid 5080] lstat("./119/binderfs", [pid 5076] fstat(3, [pid 5771] write(3, "1", 1 [pid 5774] setpgid(0, 0 [pid 5773] <... symlink resumed>) = 0 [pid 5772] <... openat resumed>) = 3 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5771] <... write resumed>) = 1 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5774] <... setpgid resumed>) = 0 [pid 5772] write(3, "1", 1 [pid 5771] write(3, "\x32\x00", 2 [pid 5080] unlink("./119/binderfs" [pid 5773] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] getdents64(3, [pid 5772] <... write resumed>) = 1 [pid 5772] write(3, "\x32\x00", 2 [pid 5080] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] getdents64(3, [pid 5076] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] <... madvise resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5773] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] close(3 [pid 5076] lstat("./111/binderfs", [pid 5080] <... close resumed>) = 0 [pid 5773] <... openat resumed>) = 3 [pid 5080] rmdir("./119" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5773] write(3, "1", 1 [pid 5080] mkdir("./120", 0777 [pid 5076] unlink("./111/binderfs" [pid 5080] <... mkdir resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... unlink resumed>) = 0 [pid 5076] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5775 [pid 5076] rmdir("./111"./strace-static-x86_64: Process 5775 attached ) = 0 [pid 5076] mkdir("./112", 0777 [pid 5775] chdir("./120" [pid 5076] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5775] <... chdir resumed>) = 0 [pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5776 [pid 5775] <... prctl resumed>) = 0 [pid 5775] setpgid(0, 0 [pid 5774] <... openat resumed>) = 3 [pid 5775] <... setpgid resumed>) = 0 [pid 5774] write(3, "1000", 4 [pid 5773] <... write resumed>) = 1 [pid 5772] <... write resumed>) = 2 [pid 5771] <... write resumed>) = 2 [pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5773] write(3, "\x32\x00", 2 [pid 5772] exit_group(0 [pid 5774] <... write resumed>) = 4 ./strace-static-x86_64: Process 5776 attached [pid 5775] <... openat resumed>) = 3 [pid 5774] close(3 [pid 5772] <... exit_group resumed>) = ? [pid 5771] exit_group(0 [pid 5776] chdir("./112" [pid 5775] write(3, "1000", 4 [pid 5776] <... chdir resumed>) = 0 [pid 5775] <... write resumed>) = 4 [pid 5776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5775] close(3 [pid 5774] <... close resumed>) = 0 [pid 5776] <... prctl resumed>) = 0 [pid 5775] <... close resumed>) = 0 [pid 5776] setpgid(0, 0 [pid 5775] symlink("/dev/binderfs", "./binderfs" [pid 5772] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5774] symlink("/dev/binderfs", "./binderfs" [pid 5776] <... setpgid resumed>) = 0 [pid 5775] <... symlink resumed>) = 0 [pid 5771] <... exit_group resumed>) = ? [pid 5776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5775] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5774] <... symlink resumed>) = 0 [pid 5776] <... openat resumed>) = 3 [pid 5775] <... madvise resumed>) = 0 [pid 5774] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5771] +++ exited with 0 +++ [pid 5776] write(3, "1000", 4 [pid 5775] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5773] <... write resumed>) = 2 [pid 5776] <... write resumed>) = 4 [pid 5774] <... madvise resumed>) = 0 [pid 5081] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5776] close(3 [pid 5775] <... openat resumed>) = 3 [pid 5774] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5773] exit_group(0 [pid 5776] <... close resumed>) = 0 [pid 5775] write(3, "1", 1 [pid 5774] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5776] symlink("/dev/binderfs", "./binderfs" [pid 5775] <... write resumed>) = 1 [pid 5773] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5776] <... symlink resumed>) = 0 [pid 5775] write(3, "\x32\x00", 2 [pid 5774] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5776] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5776] <... madvise resumed>) = 0 [pid 5776] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5773] +++ exited with 0 +++ [pid 5776] <... openat resumed>) = 3 [pid 5776] write(3, "1", 1) = 1 [pid 5774] <... write resumed>) = 1 [pid 5079] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5776] write(3, "\x32\x00", 2 [pid 5775] <... write resumed>) = 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5775] exit_group(0 [pid 5774] write(3, "\x32\x00", 2 [pid 5081] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5776] <... write resumed>) = 2 [pid 5775] <... exit_group resumed>) = ? [pid 5774] <... write resumed>) = 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] fstat(3, [pid 5075] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5776] exit_group(0 [pid 5774] exit_group(0 [pid 5081] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5774] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5776] <... exit_group resumed>) = ? [pid 5776] +++ exited with 0 +++ [pid 5774] +++ exited with 0 +++ [pid 5081] lstat("./119/binderfs", [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... openat resumed>) = 3 [pid 5775] +++ exited with 0 +++ [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5776, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] fstat(3, [pid 5081] unlink("./119/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] lstat("./116/binderfs", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5075] getdents64(3, [pid 5081] getdents64(3, [pid 5079] unlink("./116/binderfs" [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5077] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] lstat("./107/binderfs", [pid 5076] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5077] fstat(3, [pid 5076] fstat(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./107/binderfs" [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5080] getdents64(3, [pid 5077] getdents64(3, [pid 5075] <... unlink resumed>) = 0 [pid 5081] rmdir("./119" [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] rmdir("./116" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5081] <... rmdir resumed>) = 0 [pid 5080] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5081] mkdir("./120", 0777 [pid 5080] lstat("./120/binderfs", [pid 5077] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] unlink("./120/binderfs" [pid 5079] mkdir("./117", 0777 [pid 5076] lstat("./112/binderfs", [pid 5075] <... close resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] lstat("./116/binderfs", [pid 5080] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] rmdir("./107"./strace-static-x86_64: Process 5777 attached [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5777 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./112/binderfs" [pid 5080] close(3) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5080] rmdir("./120" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./116/binderfs" [pid 5080] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] mkdir("./108", 0777 [pid 5080] mkdir("./121", 0777) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5777] chdir("./120" [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5778 [pid 5075] <... mkdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5779 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5778 attached [pid 5778] chdir("./117") = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] close(3 [pid 5077] close(3 [pid 5076] <... close resumed>) = 0 [pid 5778] <... prctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5780 [pid 5778] setpgid(0, 0 [pid 5077] rmdir("./116" [pid 5076] rmdir("./112" [pid 5778] <... setpgid resumed>) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... rmdir resumed>) = 0 [pid 5778] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5780 attached [pid 5778] write(3, "1000", 4 [pid 5077] mkdir("./117", 0777 [pid 5076] <... rmdir resumed>) = 0 [pid 5780] chdir("./108" [pid 5778] <... write resumed>) = 4 [pid 5777] <... chdir resumed>) = 0 [pid 5780] <... chdir resumed>) = 0 [pid 5778] close(3 [pid 5077] <... mkdir resumed>) = 0 [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5778] <... close resumed>) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] mkdir("./113", 0777 [pid 5780] <... prctl resumed>) = 0 [pid 5778] symlink("/dev/binderfs", "./binderfs" [pid 5780] setpgid(0, 0 [pid 5778] <... symlink resumed>) = 0 [pid 5780] <... setpgid resumed>) = 0 [pid 5778] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... mkdir resumed>) = 0 [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5778] <... madvise resumed>) = 0 [pid 5777] <... prctl resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5779 attached [pid 5780] <... openat resumed>) = 3 [pid 5778] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5777] setpgid(0, 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5781 [pid 5780] write(3, "1000", 4 [pid 5778] <... openat resumed>) = 3 [pid 5780] <... write resumed>) = 4 [pid 5778] write(3, "1", 1 [pid 5780] close(3 [pid 5779] chdir("./121" [pid 5778] <... write resumed>) = 1 [pid 5777] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5781 attached [pid 5780] <... close resumed>) = 0 [pid 5778] write(3, "\x32\x00", 2 [pid 5781] chdir("./117" [pid 5780] symlink("/dev/binderfs", "./binderfs" [pid 5779] <... chdir resumed>) = 0 [pid 5778] <... write resumed>) = 2 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5782 ./strace-static-x86_64: Process 5782 attached [pid 5781] <... chdir resumed>) = 0 [pid 5780] <... symlink resumed>) = 0 [pid 5778] exit_group(0 [pid 5782] chdir("./113" [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5778] <... exit_group resumed>) = ? [pid 5777] <... openat resumed>) = 3 [pid 5782] <... chdir resumed>) = 0 [pid 5781] <... prctl resumed>) = 0 [pid 5780] <... madvise resumed>) = 0 [pid 5779] <... prctl resumed>) = 0 [pid 5778] +++ exited with 0 +++ [pid 5777] write(3, "1000", 4 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5781] setpgid(0, 0 [pid 5780] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5779] setpgid(0, 0 [pid 5777] <... write resumed>) = 4 [pid 5782] <... prctl resumed>) = 0 [pid 5781] <... setpgid resumed>) = 0 [pid 5780] <... openat resumed>) = 3 [pid 5779] <... setpgid resumed>) = 0 [pid 5777] close(3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5782] setpgid(0, 0 [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5780] write(3, "1", 1 [pid 5777] <... close resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5782] <... setpgid resumed>) = 0 [pid 5781] <... openat resumed>) = 3 [pid 5780] <... write resumed>) = 1 [pid 5777] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... restart_syscall resumed>) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] write(3, "1000", 4 [pid 5780] write(3, "\x32\x00", 2 [pid 5779] <... openat resumed>) = 3 [pid 5782] <... openat resumed>) = 3 [pid 5781] <... write resumed>) = 4 [pid 5780] <... write resumed>) = 2 [pid 5779] write(3, "1000", 4 [pid 5777] <... symlink resumed>) = 0 [pid 5782] write(3, "1000", 4 [pid 5781] close(3 [pid 5780] exit_group(0 [pid 5779] <... write resumed>) = 4 [pid 5777] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5782] <... write resumed>) = 4 [pid 5781] <... close resumed>) = 0 [pid 5780] <... exit_group resumed>) = ? [pid 5779] close(3 [pid 5782] close(3 [pid 5781] symlink("/dev/binderfs", "./binderfs" [pid 5780] +++ exited with 0 +++ [pid 5779] <... close resumed>) = 0 [pid 5777] <... madvise resumed>) = 0 [pid 5079] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5782] <... close resumed>) = 0 [pid 5781] <... symlink resumed>) = 0 [pid 5779] symlink("/dev/binderfs", "./binderfs" [pid 5777] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5782] symlink("/dev/binderfs", "./binderfs" [pid 5781] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5782] <... symlink resumed>) = 0 [pid 5781] <... madvise resumed>) = 0 [pid 5779] <... symlink resumed>) = 0 [pid 5777] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5782] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5781] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5779] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5777] write(3, "1", 1 [pid 5079] <... openat resumed>) = 3 [pid 5782] <... madvise resumed>) = 0 [pid 5781] <... openat resumed>) = 3 [pid 5779] <... madvise resumed>) = 0 [pid 5777] <... write resumed>) = 1 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5782] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5781] write(3, "1", 1 [pid 5779] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5777] write(3, "\x32\x00", 2 [pid 5079] fstat(3, [pid 5075] <... restart_syscall resumed>) = 0 [pid 5782] <... openat resumed>) = 3 [pid 5781] <... write resumed>) = 1 [pid 5779] <... openat resumed>) = 3 [pid 5782] write(3, "1", 1 [pid 5781] write(3, "\x32\x00", 2 [pid 5782] <... write resumed>) = 1 [pid 5781] <... write resumed>) = 2 [pid 5779] write(3, "1", 1 [pid 5777] <... write resumed>) = 2 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5782] write(3, "\x32\x00", 2 [pid 5781] exit_group(0 [pid 5779] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5781] <... exit_group resumed>) = ? [pid 5779] write(3, "\x32\x00", 2 [pid 5777] exit_group(0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5781] +++ exited with 0 +++ [pid 5777] <... exit_group resumed>) = ? [pid 5079] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./117/binderfs", [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./117/binderfs" [pid 5077] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5079] getdents64(3, [pid 5077] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] fstat(3, [pid 5079] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./117" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5782] <... write resumed>) = 2 [pid 5777] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./108/binderfs", [pid 5779] <... write resumed>) = 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5079] mkdir("./118", 0777 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5779] exit_group(0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5782] exit_group(0) = ? [pid 5079] <... mkdir resumed>) = 0 [pid 5779] <... exit_group resumed>) = ? [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] lstat("./117/binderfs", [pid 5075] unlink("./108/binderfs" [pid 5782] +++ exited with 0 +++ [pid 5779] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] <... unlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] fstat(3, [pid 5081] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5783 [pid 5077] unlink("./117/binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5080] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... unlink resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5783 attached [pid 5081] fstat(3, [pid 5080] lstat("./121/binderfs", [pid 5077] close(3 [pid 5075] close(3 [pid 5783] chdir("./118" [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5783] <... chdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] unlink("./121/binderfs" [pid 5077] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... unlink resumed>) = 0 [pid 5077] rmdir("./117" [pid 5076] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./108" [pid 5783] <... prctl resumed>) = 0 [pid 5081] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5783] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5783] <... setpgid resumed>) = 0 [pid 5080] close(3 [pid 5077] <... rmdir resumed>) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [pid 5077] mkdir("./118", 0777 [pid 5783] <... openat resumed>) = 3 [pid 5081] lstat("./120/binderfs", [pid 5080] rmdir("./121" [pid 5076] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./109", 0777 [pid 5783] write(3, "1000", 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5783] <... write resumed>) = 4 [pid 5080] mkdir("./122", 0777 [pid 5076] <... openat resumed>) = 3 [pid 5783] close(3 [pid 5081] unlink("./120/binderfs" [pid 5080] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 [pid 5076] fstat(3, [pid 5783] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5783] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5783] <... symlink resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5784 [pid 5076] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5783] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5783] <... madvise resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5783] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5081] close(3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5785 [pid 5076] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] write(3, "1", 1 [pid 5081] <... close resumed>) = 0 ./strace-static-x86_64: Process 5785 attached [pid 5783] <... write resumed>) = 1 [pid 5081] rmdir("./120" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5786 [pid 5783] write(3, "\x32\x00", 2 [pid 5785] chdir("./118" [pid 5783] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5076] lstat("./113/binderfs", ./strace-static-x86_64: Process 5786 attached [pid 5783] exit_group(0 [pid 5081] mkdir("./121", 0777./strace-static-x86_64: Process 5784 attached [pid 5786] chdir("./109" [pid 5785] <... chdir resumed>) = 0 [pid 5783] <... exit_group resumed>) = ? [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5786] <... chdir resumed>) = 0 [pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5784] chdir("./122" [pid 5783] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5076] unlink("./113/binderfs" [pid 5786] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5785] <... prctl resumed>) = 0 [pid 5784] <... chdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5786] <... prctl resumed>) = 0 [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... unlink resumed>) = 0 [pid 5786] setpgid(0, 0 [pid 5784] <... prctl resumed>) = 0 [pid 5786] <... setpgid resumed>) = 0 [pid 5784] setpgid(0, 0 [pid 5786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5784] <... setpgid resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5785] setpgid(0, 0 [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5787 attached [pid 5786] <... openat resumed>) = 3 [pid 5785] <... setpgid resumed>) = 0 [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5787 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5786] write(3, "1000", 4 [pid 5784] <... openat resumed>) = 3 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] close(3 [pid 5787] chdir("./121" [pid 5786] <... write resumed>) = 4 [pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5784] write(3, "1000", 4 [pid 5787] <... chdir resumed>) = 0 [pid 5786] close(3 [pid 5784] <... write resumed>) = 4 [pid 5076] <... close resumed>) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5786] <... close resumed>) = 0 [pid 5784] close(3 [pid 5076] rmdir("./113" [pid 5787] <... prctl resumed>) = 0 [pid 5786] symlink("/dev/binderfs", "./binderfs" [pid 5784] <... close resumed>) = 0 [pid 5079] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5787] setpgid(0, 0 [pid 5786] <... symlink resumed>) = 0 [pid 5785] <... openat resumed>) = 3 [pid 5784] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... rmdir resumed>) = 0 [pid 5787] <... setpgid resumed>) = 0 [pid 5786] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5785] write(3, "1000", 4 [pid 5784] <... symlink resumed>) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5786] <... madvise resumed>) = 0 [pid 5785] <... write resumed>) = 4 [pid 5784] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./114", 0777 [pid 5787] <... openat resumed>) = 3 [pid 5786] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5785] close(3 [pid 5784] <... madvise resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5787] write(3, "1000", 4 [pid 5786] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5079] fstat(3, [pid 5787] <... write resumed>) = 4 [pid 5786] write(3, "1", 1 [pid 5785] <... close resumed>) = 0 [pid 5784] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5787] close(3 [pid 5786] <... write resumed>) = 1 [pid 5787] <... close resumed>) = 0 [pid 5786] write(3, "\x32\x00", 2 [pid 5784] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5787] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5787] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5787] <... madvise resumed>) = 0 [pid 5784] write(3, "1", 1 [pid 5079] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5788 [pid 5787] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5787] <... openat resumed>) = 3 [pid 5785] symlink("/dev/binderfs", "./binderfs" [pid 5079] lstat("./118/binderfs", ./strace-static-x86_64: Process 5788 attached [pid 5787] write(3, "1", 1 [pid 5788] chdir("./114" [pid 5785] <... symlink resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./118/binderfs" [pid 5788] <... chdir resumed>) = 0 [pid 5785] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... unlink resumed>) = 0 [pid 5788] <... prctl resumed>) = 0 [pid 5079] getdents64(3, [pid 5788] setpgid(0, 0 [pid 5785] <... madvise resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5788] <... setpgid resumed>) = 0 [pid 5079] close(3 [pid 5788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5785] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5788] <... openat resumed>) = 3 [pid 5787] <... write resumed>) = 1 [pid 5786] <... write resumed>) = 2 [pid 5785] <... openat resumed>) = 3 [pid 5784] <... write resumed>) = 1 [pid 5079] <... close resumed>) = 0 [pid 5788] write(3, "1000", 4 [pid 5787] write(3, "\x32\x00", 2 [pid 5786] exit_group(0 [pid 5785] write(3, "1", 1 [pid 5784] write(3, "\x32\x00", 2 [pid 5079] rmdir("./118" [pid 5788] <... write resumed>) = 4 [pid 5787] <... write resumed>) = 2 [pid 5786] <... exit_group resumed>) = ? [pid 5785] <... write resumed>) = 1 [pid 5788] close(3 [pid 5787] exit_group(0 [pid 5786] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5788] <... close resumed>) = 0 [pid 5787] <... exit_group resumed>) = ? [pid 5785] write(3, "\x32\x00", 2 [pid 5079] mkdir("./119", 0777 [pid 5788] symlink("/dev/binderfs", "./binderfs" [pid 5787] +++ exited with 0 +++ [pid 5788] <... symlink resumed>) = 0 [pid 5785] <... write resumed>) = 2 [pid 5784] <... write resumed>) = 2 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5786, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5788] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5785] exit_group(0 [pid 5784] exit_group(0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5788] <... madvise resumed>) = 0 [pid 5785] <... exit_group resumed>) = ? [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5788] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5788] write(3, "1", 1) = 1 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5788] write(3, "\x32\x00", 2) = 2 [pid 5785] +++ exited with 0 +++ [pid 5784] <... exit_group resumed>) = ? [pid 5788] exit_group(0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5789 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5788] <... exit_group resumed>) = ? [pid 5081] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5788] +++ exited with 0 +++ [pid 5784] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5789 attached [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5784, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5081] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5789] chdir("./119" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5789] <... chdir resumed>) = 0 [pid 5081] fstat(3, [pid 5080] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5789] <... prctl resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5789] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5789] <... setpgid resumed>) = 0 [pid 5081] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5789] <... openat resumed>) = 3 [pid 5081] lstat("./121/binderfs", [pid 5080] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5789] write(3, "1000", 4 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5789] <... write resumed>) = 4 [pid 5081] unlink("./121/binderfs" [pid 5080] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5789] close(3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5789] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5080] lstat("./122/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./109/binderfs", [pid 5789] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] lstat("./118/binderfs", [pid 5076] <... openat resumed>) = 3 [pid 5789] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] unlink("./122/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] fstat(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5789] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5077] unlink("./118/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./109/binderfs" [pid 5789] <... madvise resumed>) = 0 [pid 5081] rmdir("./121" [pid 5080] getdents64(3, [pid 5077] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5789] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5789] <... openat resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] close(3 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] getdents64(3, [pid 5789] write(3, "1", 1 [pid 5081] mkdir("./122", 0777 [pid 5080] <... close resumed>) = 0 [pid 5789] <... write resumed>) = 1 [pid 5080] rmdir("./122" [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5789] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5076] lstat("./114/binderfs", [pid 5075] <... close resumed>) = 0 [pid 5789] <... write resumed>) = 2 [pid 5080] mkdir("./123", 0777./strace-static-x86_64: Process 5790 attached [pid 5789] exit_group(0 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] rmdir("./118" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] rmdir("./109" [pid 5790] chdir("./122" [pid 5789] <... exit_group resumed>) = ? [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5790 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5791 attached [pid 5790] <... chdir resumed>) = 0 [pid 5789] +++ exited with 0 +++ [pid 5077] <... rmdir resumed>) = 0 [pid 5076] unlink("./114/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5791] chdir("./123" [pid 5790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5791 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5077] mkdir("./119", 0777 [pid 5791] <... chdir resumed>) = 0 [pid 5790] <... prctl resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] mkdir("./110", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5791] setpgid(0, 0 [pid 5790] setpgid(0, 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5791] <... setpgid resumed>) = 0 [pid 5790] <... setpgid resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] close(3 [pid 5791] write(3, "1000", 4 [pid 5076] <... close resumed>) = 0 [pid 5079] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5793 [pid 5076] rmdir("./114" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5792 ./strace-static-x86_64: Process 5792 attached [pid 5791] <... write resumed>) = 4 [pid 5790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5791] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5791] <... close resumed>) = 0 [pid 5790] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./115", 0777./strace-static-x86_64: Process 5793 attached [pid 5792] chdir("./110" [pid 5791] symlink("/dev/binderfs", "./binderfs" [pid 5790] write(3, "1000", 4 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5792] <... chdir resumed>) = 0 [pid 5791] <... symlink resumed>) = 0 [pid 5790] <... write resumed>) = 4 [pid 5079] fstat(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5793] chdir("./119" [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5791] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5790] close(3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5794 attached [pid 5793] <... chdir resumed>) = 0 [pid 5792] <... prctl resumed>) = 0 [pid 5791] <... madvise resumed>) = 0 [pid 5790] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5794] chdir("./115" [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5792] setpgid(0, 0 [pid 5791] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5790] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5794 [pid 5793] <... prctl resumed>) = 0 [pid 5792] <... setpgid resumed>) = 0 [pid 5791] <... openat resumed>) = 3 [pid 5793] setpgid(0, 0 [pid 5791] write(3, "1", 1 [pid 5790] <... symlink resumed>) = 0 [pid 5079] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5794] <... chdir resumed>) = 0 [pid 5793] <... setpgid resumed>) = 0 [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5791] <... write resumed>) = 1 [pid 5790] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5791] write(3, "\x32\x00", 2 [pid 5794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5793] <... openat resumed>) = 3 [pid 5792] <... openat resumed>) = 3 [pid 5791] <... write resumed>) = 2 [pid 5790] <... madvise resumed>) = 0 [pid 5079] lstat("./119/binderfs", [pid 5794] <... prctl resumed>) = 0 [pid 5793] write(3, "1000", 4 [pid 5792] write(3, "1000", 4 [pid 5791] exit_group(0 [pid 5794] setpgid(0, 0 [pid 5793] <... write resumed>) = 4 [pid 5792] <... write resumed>) = 4 [pid 5791] <... exit_group resumed>) = ? [pid 5790] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5794] <... setpgid resumed>) = 0 [pid 5793] close(3 [pid 5792] close(3 [pid 5791] +++ exited with 0 +++ [pid 5790] <... openat resumed>) = 3 [pid 5079] unlink("./119/binderfs" [pid 5793] <... close resumed>) = 0 [pid 5792] <... close resumed>) = 0 [pid 5790] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5793] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... unlink resumed>) = 0 [pid 5792] symlink("/dev/binderfs", "./binderfs" [pid 5794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5793] <... symlink resumed>) = 0 [pid 5790] <... write resumed>) = 1 [pid 5079] getdents64(3, [pid 5793] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5792] <... symlink resumed>) = 0 [pid 5790] write(3, "\x32\x00", 2 [pid 5080] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5794] <... openat resumed>) = 3 [pid 5793] <... madvise resumed>) = 0 [pid 5792] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5793] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5793] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5793] write(3, "1", 1 [pid 5080] fstat(3, [pid 5793] <... write resumed>) = 1 [pid 5790] <... write resumed>) = 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3 [pid 5794] write(3, "1000", 4 [pid 5793] write(3, "\x32\x00", 2 [pid 5792] <... madvise resumed>) = 0 [pid 5790] exit_group(0 [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5794] <... write resumed>) = 4 [pid 5792] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5790] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] rmdir("./119" [pid 5794] close(3 [pid 5793] <... write resumed>) = 2 [pid 5792] <... openat resumed>) = 3 [pid 5080] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5793] exit_group(0 [pid 5792] write(3, "1", 1 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5794] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5794] symlink("/dev/binderfs", "./binderfs" [pid 5793] <... exit_group resumed>) = ? [pid 5792] <... write resumed>) = 1 [pid 5790] +++ exited with 0 +++ [pid 5080] lstat("./123/binderfs", [pid 5794] <... symlink resumed>) = 0 [pid 5793] +++ exited with 0 +++ [pid 5792] write(3, "\x32\x00", 2 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] mkdir("./120", 0777 [pid 5794] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] unlink("./123/binderfs" [pid 5792] <... write resumed>) = 2 [pid 5080] <... unlink resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5792] exit_group(0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5794] <... madvise resumed>) = 0 [pid 5792] <... exit_group resumed>) = ? [pid 5080] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] rmdir("./123" [pid 5794] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5792] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5795 [pid 5077] <... openat resumed>) = 3 [pid 5794] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] mkdir("./124", 0777 [pid 5077] fstat(3, [pid 5794] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5794] <... write resumed>) = 1 [pid 5081] fstat(3, [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5796 attached [pid 5794] write(3, "\x32\x00", 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] getdents64(3, [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5796 ./strace-static-x86_64: Process 5795 attached [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5795] chdir("./120" [pid 5794] <... write resumed>) = 2 [pid 5081] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5796] chdir("./124" [pid 5795] <... chdir resumed>) = 0 [pid 5794] exit_group(0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5796] <... chdir resumed>) = 0 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5794] <... exit_group resumed>) = ? [pid 5081] lstat("./122/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5795] <... prctl resumed>) = 0 [pid 5077] lstat("./119/binderfs", [pid 5075] <... openat resumed>) = 3 [pid 5795] setpgid(0, 0 [pid 5081] unlink("./122/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5795] <... setpgid resumed>) = 0 [pid 5075] fstat(3, [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5794] +++ exited with 0 +++ [pid 5081] <... unlink resumed>) = 0 [pid 5077] unlink("./119/binderfs" [pid 5796] <... prctl resumed>) = 0 [pid 5795] <... openat resumed>) = 3 [pid 5081] getdents64(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5795] write(3, "1000", 4 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] getdents64(3, [pid 5796] setpgid(0, 0 [pid 5795] <... write resumed>) = 4 [pid 5081] close(3 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5796] <... setpgid resumed>) = 0 [pid 5795] close(3 [pid 5081] <... close resumed>) = 0 [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5795] <... close resumed>) = 0 [pid 5081] rmdir("./122" [pid 5077] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5795] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... rmdir resumed>) = 0 [pid 5077] rmdir("./119" [pid 5796] <... openat resumed>) = 3 [pid 5795] <... symlink resumed>) = 0 [pid 5081] mkdir("./123", 0777 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5796] write(3, "1000", 4 [pid 5795] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... mkdir resumed>) = 0 [pid 5077] mkdir("./120", 0777 [pid 5076] fstat(3, [pid 5075] lstat("./110/binderfs", [pid 5796] <... write resumed>) = 4 [pid 5795] <... madvise resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] unlink("./110/binderfs" [pid 5796] close(3 [pid 5795] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5797 ./strace-static-x86_64: Process 5797 attached [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5795] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5798 [pid 5075] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5798 attached [pid 5796] <... close resumed>) = 0 [pid 5795] write(3, "1", 1 [pid 5076] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, [pid 5798] chdir("./120" [pid 5796] symlink("/dev/binderfs", "./binderfs" [pid 5795] <... write resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5798] <... chdir resumed>) = 0 [pid 5796] <... symlink resumed>) = 0 [pid 5795] write(3, "\x32\x00", 2 [pid 5797] chdir("./123" [pid 5076] lstat("./115/binderfs", [pid 5075] close(3 [pid 5798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5797] <... chdir resumed>) = 0 [pid 5796] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] unlink("./115/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5798] <... prctl resumed>) = 0 [pid 5797] <... prctl resumed>) = 0 [pid 5796] <... madvise resumed>) = 0 [pid 5795] <... write resumed>) = 2 [pid 5798] setpgid(0, 0 [pid 5797] setpgid(0, 0 [pid 5796] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5795] exit_group(0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] rmdir("./110" [pid 5798] <... setpgid resumed>) = 0 [pid 5797] <... setpgid resumed>) = 0 [pid 5796] <... openat resumed>) = 3 [pid 5795] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5797] <... openat resumed>) = 3 [pid 5796] write(3, "1", 1 [pid 5795] +++ exited with 0 +++ [pid 5076] close(3 [pid 5075] mkdir("./111", 0777 [pid 5798] <... openat resumed>) = 3 [pid 5797] write(3, "1000", 4 [pid 5796] <... write resumed>) = 1 [pid 5076] <... close resumed>) = 0 [pid 5798] write(3, "1000", 4 [pid 5797] <... write resumed>) = 4 [pid 5796] write(3, "\x32\x00", 2 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] <... mkdir resumed>) = 0 [pid 5798] <... write resumed>) = 4 [pid 5797] close(3 [pid 5079] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./115" [pid 5798] close(3 [pid 5797] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5798] <... close resumed>) = 0 [pid 5797] symlink("/dev/binderfs", "./binderfs" [pid 5079] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... rmdir resumed>) = 0 [pid 5798] symlink("/dev/binderfs", "./binderfs" [pid 5797] <... symlink resumed>) = 0 [pid 5796] <... write resumed>) = 2 [pid 5079] <... openat resumed>) = 3 [pid 5076] mkdir("./116", 0777 [pid 5798] <... symlink resumed>) = 0 [pid 5797] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5796] exit_group(0 [pid 5079] fstat(3, [pid 5798] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5797] <... madvise resumed>) = 0 [pid 5796] <... exit_group resumed>) = ? [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5799 [pid 5798] <... madvise resumed>) = 0 [pid 5797] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] getdents64(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5798] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5797] <... openat resumed>) = 3 [pid 5796] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5800 attached [pid 5798] <... openat resumed>) = 3 [pid 5797] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5796, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5079] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5799 attached [pid 5800] chdir("./116" [pid 5798] write(3, "1", 1 [pid 5797] <... write resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5800] <... chdir resumed>) = 0 [pid 5799] chdir("./111" [pid 5798] <... write resumed>) = 1 [pid 5797] write(3, "\x32\x00", 2 [pid 5079] lstat("./120/binderfs", [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5800 [pid 5800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5799] <... chdir resumed>) = 0 [pid 5798] write(3, "\x32\x00", 2 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./120/binderfs") = 0 [pid 5079] getdents64(3, [pid 5080] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5800] <... prctl resumed>) = 0 [pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5798] <... write resumed>) = 2 [pid 5797] <... write resumed>) = 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] close(3 [pid 5800] setpgid(0, 0 [pid 5799] <... prctl resumed>) = 0 [pid 5798] exit_group(0 [pid 5797] exit_group(0 [pid 5080] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5798] <... exit_group resumed>) = ? [pid 5080] <... openat resumed>) = 3 [pid 5079] rmdir("./120" [pid 5797] <... exit_group resumed>) = ? [pid 5079] <... rmdir resumed>) = 0 [pid 5080] fstat(3, [pid 5079] mkdir("./121", 0777 [pid 5798] +++ exited with 0 +++ [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5798, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5800] <... setpgid resumed>) = 0 [pid 5799] setpgid(0, 0 [pid 5080] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5801 [pid 5800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5799] <... setpgid resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5800] <... openat resumed>) = 3 [pid 5797] +++ exited with 0 +++ [pid 5080] lstat("./124/binderfs", [pid 5077] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5800] write(3, "1000", 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5800] <... write resumed>) = 4 [pid 5080] unlink("./124/binderfs" [pid 5077] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5800] close(3 [pid 5799] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5801 attached [pid 5800] <... close resumed>) = 0 [pid 5081] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5801] chdir("./121" [pid 5800] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5801] <... chdir resumed>) = 0 [pid 5800] <... symlink resumed>) = 0 [pid 5799] write(3, "1000", 4 [pid 5081] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5800] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5799] <... write resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5077] fstat(3, [pid 5801] <... prctl resumed>) = 0 [pid 5800] <... madvise resumed>) = 0 [pid 5799] close(3 [pid 5081] fstat(3, [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5801] setpgid(0, 0 [pid 5800] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5799] <... close resumed>) = 0 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] close(3 [pid 5077] getdents64(3, [pid 5801] <... setpgid resumed>) = 0 [pid 5800] <... openat resumed>) = 3 [pid 5799] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5800] write(3, "1", 1 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] rmdir("./124" [pid 5077] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5801] <... openat resumed>) = 3 [pid 5800] <... write resumed>) = 1 [pid 5799] <... symlink resumed>) = 0 [pid 5081] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5801] write(3, "1000", 4 [pid 5800] write(3, "\x32\x00", 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5801] <... write resumed>) = 4 [pid 5800] <... write resumed>) = 2 [pid 5799] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] lstat("./123/binderfs", [pid 5080] mkdir("./125", 0777 [pid 5077] lstat("./120/binderfs", [pid 5801] close(3 [pid 5800] exit_group(0 [pid 5799] <... madvise resumed>) = 0 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5801] <... close resumed>) = 0 [pid 5800] <... exit_group resumed>) = ? [pid 5799] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] unlink("./123/binderfs" [pid 5080] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5801] symlink("/dev/binderfs", "./binderfs" [pid 5800] +++ exited with 0 +++ [pid 5799] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./120/binderfs" [pid 5801] <... symlink resumed>) = 0 [pid 5799] write(3, "1", 1 [pid 5081] getdents64(3, [pid 5801] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5802 attached [pid 5801] <... madvise resumed>) = 0 [pid 5799] <... write resumed>) = 1 [pid 5081] close(3 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5802 [pid 5077] <... unlink resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5802] chdir("./125" [pid 5801] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5799] write(3, "\x32\x00", 2 [pid 5081] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5801] <... openat resumed>) = 3 [pid 5081] rmdir("./123" [pid 5801] write(3, "1", 1 [pid 5081] <... rmdir resumed>) = 0 [pid 5801] <... write resumed>) = 1 [pid 5799] <... write resumed>) = 2 [pid 5081] mkdir("./124", 0777 [pid 5801] write(3, "\x32\x00", 2 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5802] <... chdir resumed>) = 0 [pid 5801] <... write resumed>) = 2 [pid 5799] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3./strace-static-x86_64: Process 5803 attached [pid 5802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5801] exit_group(0 [pid 5799] <... exit_group resumed>) = ? [pid 5077] <... close resumed>) = 0 [pid 5802] <... prctl resumed>) = 0 [pid 5801] <... exit_group resumed>) = ? [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5803 [pid 5802] setpgid(0, 0 [pid 5801] +++ exited with 0 +++ [pid 5799] +++ exited with 0 +++ [pid 5077] rmdir("./120" [pid 5802] <... setpgid resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./121", 0777 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5802] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] fstat(3, [pid 5802] write(3, "1000", 4 [pid 5079] getdents64(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./121/binderfs", [pid 5802] <... write resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5802] close(3 [pid 5079] unlink("./121/binderfs" [pid 5802] <... close resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5804 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5802] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5076] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5804 attached [pid 5802] <... symlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5804] chdir("./121" [pid 5802] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5079] close(3 [pid 5076] lstat("./116/binderfs", [pid 5075] <... openat resumed>) = 3 [pid 5804] <... chdir resumed>) = 0 [pid 5802] <... madvise resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5802] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5079] rmdir("./121" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, [pid 5804] <... prctl resumed>) = 0 [pid 5803] chdir("./124" [pid 5802] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] unlink("./116/binderfs" [pid 5804] setpgid(0, 0 [pid 5803] <... chdir resumed>) = 0 [pid 5802] write(3, "1", 1 [pid 5079] mkdir("./122", 0777 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5804] <... setpgid resumed>) = 0 [pid 5803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5802] <... write resumed>) = 1 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5803] <... prctl resumed>) = 0 [pid 5802] write(3, "\x32\x00", 2 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5804] <... openat resumed>) = 3 [pid 5803] setpgid(0, 0 [pid 5802] <... write resumed>) = 2 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5805 attached [pid 5804] write(3, "1000", 4 [pid 5803] <... setpgid resumed>) = 0 [pid 5802] exit_group(0 [pid 5076] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5805] chdir("./122" [pid 5804] <... write resumed>) = 4 [pid 5803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5802] <... exit_group resumed>) = ? [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5805 [pid 5076] <... close resumed>) = 0 [pid 5075] lstat("./111/binderfs", [pid 5805] <... chdir resumed>) = 0 [pid 5804] close(3 [pid 5803] <... openat resumed>) = 3 [pid 5805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5804] <... close resumed>) = 0 [pid 5805] <... prctl resumed>) = 0 [pid 5804] symlink("/dev/binderfs", "./binderfs" [pid 5802] +++ exited with 0 +++ [pid 5803] write(3, "1000", 4 [pid 5076] rmdir("./116" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5805] setpgid(0, 0 [pid 5804] <... symlink resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5805] <... setpgid resumed>) = 0 [pid 5804] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5803] <... write resumed>) = 4 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] unlink("./111/binderfs" [pid 5805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5804] <... madvise resumed>) = 0 [pid 5803] close(3 [pid 5076] mkdir("./117", 0777 [pid 5805] <... openat resumed>) = 3 [pid 5804] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5803] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5805] write(3, "1000", 4 [pid 5804] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5805] <... write resumed>) = 4 [pid 5804] write(3, "1", 1 [pid 5805] close(3 [pid 5804] <... write resumed>) = 1 [pid 5805] <... close resumed>) = 0 [pid 5804] write(3, "\x32\x00", 2 [pid 5805] symlink("/dev/binderfs", "./binderfs" [pid 5804] <... write resumed>) = 2 [pid 5805] <... symlink resumed>) = 0 [pid 5804] exit_group(0 [pid 5805] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5804] <... exit_group resumed>) = ? [pid 5805] <... madvise resumed>) = 0 [pid 5804] +++ exited with 0 +++ [pid 5803] symlink("/dev/binderfs", "./binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] getdents64(3, [pid 5805] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5803] <... symlink resumed>) = 0 [pid 5805] <... openat resumed>) = 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5805] write(3, "1", 1 [pid 5803] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5805] <... write resumed>) = 1 [pid 5803] <... madvise resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5806 [pid 5075] close(3 [pid 5805] write(3, "\x32\x00", 2 [pid 5803] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5806 attached [pid 5803] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5803] write(3, "1", 1 [pid 5080] <... openat resumed>) = 3 [pid 5806] chdir("./117" [pid 5805] <... write resumed>) = 2 [pid 5803] <... write resumed>) = 1 [pid 5080] fstat(3, [pid 5075] rmdir("./111" [pid 5806] <... chdir resumed>) = 0 [pid 5805] exit_group(0 [pid 5803] write(3, "\x32\x00", 2 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5805] <... exit_group resumed>) = ? [pid 5075] <... rmdir resumed>) = 0 [pid 5805] +++ exited with 0 +++ [pid 5803] <... write resumed>) = 2 [pid 5806] <... prctl resumed>) = 0 [pid 5803] exit_group(0 [pid 5080] getdents64(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5805, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./112", 0777 [pid 5806] setpgid(0, 0 [pid 5803] <... exit_group resumed>) = ? [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5806] <... setpgid resumed>) = 0 [pid 5080] umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5806] <... openat resumed>) = 3 [pid 5080] lstat("./125/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5806] write(3, "1000", 4 [pid 5803] +++ exited with 0 +++ [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] fstat(3, [pid 5806] <... write resumed>) = 4 [pid 5080] unlink("./125/binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5806] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5803, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] fstat(3, [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5806] <... close resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5807 [pid 5077] getdents64(3, [pid 5806] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(3, [pid 5806] <... symlink resumed>) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5807 attached [pid 5806] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5080] close(3 [pid 5079] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5807] chdir("./112" [pid 5806] <... madvise resumed>) = 0 [pid 5081] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5807] <... chdir resumed>) = 0 [pid 5806] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./125" [pid 5079] lstat("./122/binderfs", [pid 5077] lstat("./121/binderfs", [pid 5807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5806] <... openat resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5807] <... prctl resumed>) = 0 [pid 5806] write(3, "1", 1 [pid 5081] <... openat resumed>) = 3 [pid 5080] mkdir("./126", 0777 [pid 5079] unlink("./122/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5807] setpgid(0, 0 [pid 5806] <... write resumed>) = 1 [pid 5081] fstat(3, [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] unlink("./121/binderfs" [pid 5807] <... setpgid resumed>) = 0 [pid 5806] write(3, "\x32\x00", 2 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, [pid 5807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] getdents64(3, [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5807] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5807] write(3, "1000", 4 [pid 5081] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5808 [pid 5079] <... close resumed>) = 0 [pid 5807] <... write resumed>) = 4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./122" [pid 5807] close(3 [pid 5081] lstat("./124/binderfs", [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5807] <... close resumed>) = 0 [pid 5806] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] mkdir("./123", 0777 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5807] symlink("/dev/binderfs", "./binderfs" [pid 5806] exit_group(0 [pid 5081] unlink("./124/binderfs" [pid 5079] <... mkdir resumed>) = 0 [pid 5077] close(3./strace-static-x86_64: Process 5808 attached [pid 5807] <... symlink resumed>) = 0 [pid 5806] <... exit_group resumed>) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5807] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] getdents64(3, [pid 5806] +++ exited with 0 +++ [pid 5808] chdir("./126" [pid 5807] <... madvise resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5809 [pid 5077] rmdir("./121" [pid 5808] <... chdir resumed>) = 0 [pid 5807] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] close(3 [pid 5808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5807] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5808] <... prctl resumed>) = 0 [pid 5807] write(3, "1", 1 [pid 5081] rmdir("./124" [pid 5077] mkdir("./122", 0777 [pid 5076] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5808] setpgid(0, 0 [pid 5807] <... write resumed>) = 1 [pid 5081] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5809 attached [pid 5808] <... setpgid resumed>) = 0 [pid 5807] write(3, "\x32\x00", 2 [pid 5081] mkdir("./125", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5809] chdir("./123" [pid 5808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5809] <... chdir resumed>) = 0 [pid 5808] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5808] write(3, "1000", 4 [pid 5076] <... openat resumed>) = 3 [pid 5809] <... prctl resumed>) = 0 [pid 5808] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5811 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5810 [pid 5076] fstat(3, [pid 5809] setpgid(0, 0 [pid 5808] close(3./strace-static-x86_64: Process 5810 attached [pid 5809] <... setpgid resumed>) = 0 [pid 5808] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5811 attached [pid 5810] chdir("./122" [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5808] symlink("/dev/binderfs", "./binderfs" [pid 5076] getdents64(3, [pid 5811] chdir("./125" [pid 5810] <... chdir resumed>) = 0 [pid 5809] <... openat resumed>) = 3 [pid 5808] <... symlink resumed>) = 0 [pid 5811] <... chdir resumed>) = 0 [pid 5810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5809] write(3, "1000", 4 [pid 5808] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5810] <... prctl resumed>) = 0 [pid 5809] <... write resumed>) = 4 [pid 5811] <... prctl resumed>) = 0 [pid 5810] setpgid(0, 0 [pid 5809] close(3 [pid 5808] <... madvise resumed>) = 0 [pid 5807] <... write resumed>) = 2 [pid 5076] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5811] setpgid(0, 0 [pid 5810] <... setpgid resumed>) = 0 [pid 5809] <... close resumed>) = 0 [pid 5808] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5807] exit_group(0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5811] <... setpgid resumed>) = 0 [pid 5810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5809] symlink("/dev/binderfs", "./binderfs" [pid 5808] <... openat resumed>) = 3 [pid 5807] <... exit_group resumed>) = ? [pid 5076] lstat("./117/binderfs", [pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5810] <... openat resumed>) = 3 [pid 5809] <... symlink resumed>) = 0 [pid 5808] write(3, "1", 1 [pid 5807] +++ exited with 0 +++ [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5811] <... openat resumed>) = 3 [pid 5810] write(3, "1000", 4 [pid 5809] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5808] <... write resumed>) = 1 [pid 5076] unlink("./117/binderfs" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5807, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5811] write(3, "1000", 4 [pid 5810] <... write resumed>) = 4 [pid 5809] <... madvise resumed>) = 0 [pid 5808] write(3, "\x32\x00", 2 [pid 5811] <... write resumed>) = 4 [pid 5810] close(3 [pid 5809] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5076] <... unlink resumed>) = 0 [pid 5811] close(3 [pid 5809] <... openat resumed>) = 3 [pid 5811] <... close resumed>) = 0 [pid 5809] write(3, "1", 1 [pid 5811] symlink("/dev/binderfs", "./binderfs" [pid 5810] <... close resumed>) = 0 [pid 5809] <... write resumed>) = 1 [pid 5808] <... write resumed>) = 2 [pid 5076] getdents64(3, [pid 5811] <... symlink resumed>) = 0 [pid 5810] symlink("/dev/binderfs", "./binderfs" [pid 5809] write(3, "\x32\x00", 2 [pid 5808] exit_group(0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5811] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5810] <... symlink resumed>) = 0 [pid 5809] <... write resumed>) = 2 [pid 5808] <... exit_group resumed>) = ? [pid 5076] close(3 [pid 5811] <... madvise resumed>) = 0 [pid 5810] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5809] exit_group(0 [pid 5811] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5809] <... exit_group resumed>) = ? [pid 5811] <... openat resumed>) = 3 [pid 5810] <... madvise resumed>) = 0 [pid 5809] +++ exited with 0 +++ [pid 5808] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5811] write(3, "1", 1 [pid 5810] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5076] rmdir("./117" [pid 5075] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5811] <... write resumed>) = 1 [pid 5810] <... openat resumed>) = 3 [pid 5811] write(3, "\x32\x00", 2 [pid 5810] write(3, "1", 1 [pid 5079] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./118", 0777 [pid 5075] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, [pid 5080] fstat(3, [pid 5079] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5812 attached [pid 5811] <... write resumed>) = 2 [pid 5810] <... write resumed>) = 1 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5812 [pid 5075] getdents64(3, [pid 5812] chdir("./118" [pid 5811] exit_group(0 [pid 5810] write(3, "\x32\x00", 2 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5079] lstat("./123/binderfs", [pid 5812] <... chdir resumed>) = 0 [pid 5811] <... exit_group resumed>) = ? [pid 5810] <... write resumed>) = 2 [pid 5080] umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5811] +++ exited with 0 +++ [pid 5810] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./123/binderfs" [pid 5075] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5812] <... prctl resumed>) = 0 [pid 5810] <... exit_group resumed>) = ? [pid 5080] lstat("./126/binderfs", [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5812] setpgid(0, 0 [pid 5810] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5811, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5075] lstat("./112/binderfs", [pid 5812] <... setpgid resumed>) = 0 [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] unlink("./126/binderfs" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5810, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] close(3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5812] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5812] write(3, "1000", 4 [pid 5079] rmdir("./123" [pid 5075] unlink("./112/binderfs" [pid 5812] <... write resumed>) = 4 [pid 5081] umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5812] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5079] mkdir("./124", 0777 [pid 5075] <... unlink resumed>) = 0 [pid 5812] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5812] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5080] rmdir("./126" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5812] <... symlink resumed>) = 0 [pid 5081] fstat(3, [pid 5080] <... rmdir resumed>) = 0 [pid 5812] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] mkdir("./127", 0777 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5813 [pid 5077] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5812] <... madvise resumed>) = 0 [pid 5081] getdents64(3, 0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5812] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5812] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] rmdir("./112" [pid 5081] lstat("./125/binderfs", [pid 5077] getdents64(3, [pid 5812] write(3, "1", 1 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5812] <... write resumed>) = 1 [pid 5081] unlink("./125/binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5814 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5813 attached [pid 5812] write(3, "\x32\x00", 2 [pid 5081] <... unlink resumed>) = 0 [pid 5077] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./113", 0777./strace-static-x86_64: Process 5814 attached [pid 5813] chdir("./124" [pid 5081] getdents64(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5814] chdir("./127" [pid 5813] <... chdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./122/binderfs", [pid 5075] <... mkdir resumed>) = 0 [pid 5814] <... chdir resumed>) = 0 [pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] close(3 [pid 5814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5813] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5814] <... prctl resumed>) = 0 [pid 5081] rmdir("./125" [pid 5814] setpgid(0, 0 [pid 5812] <... write resumed>) = 2 [pid 5081] <... rmdir resumed>) = 0 [pid 5077] unlink("./122/binderfs" [pid 5814] <... setpgid resumed>) = 0 [pid 5081] mkdir("./126", 0777 [pid 5814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5813] setpgid(0, 0 [pid 5812] exit_group(0 [pid 5081] <... mkdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5815 ./strace-static-x86_64: Process 5815 attached [pid 5814] <... openat resumed>) = 3 [pid 5813] <... setpgid resumed>) = 0 [pid 5812] <... exit_group resumed>) = ? [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(3, [pid 5815] chdir("./113" [pid 5814] write(3, "1000", 4 [pid 5813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5814] <... write resumed>) = 4 [pid 5813] <... openat resumed>) = 3 [pid 5812] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5816 [pid 5815] <... chdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5814] close(3 [pid 5813] write(3, "1000", 4 [pid 5077] close(3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5812, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5814] <... close resumed>) = 0 [pid 5813] <... write resumed>) = 4 [pid 5077] <... close resumed>) = 0 [pid 5815] <... prctl resumed>) = 0 [pid 5814] symlink("/dev/binderfs", "./binderfs" [pid 5813] close(3 [pid 5077] rmdir("./122"./strace-static-x86_64: Process 5816 attached [pid 5815] setpgid(0, 0 [pid 5814] <... symlink resumed>) = 0 [pid 5813] <... close resumed>) = 0 [pid 5816] chdir("./126" [pid 5815] <... setpgid resumed>) = 0 [pid 5814] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5813] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... rmdir resumed>) = 0 [pid 5076] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5816] <... chdir resumed>) = 0 [pid 5815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5814] <... madvise resumed>) = 0 [pid 5813] <... symlink resumed>) = 0 [pid 5077] mkdir("./123", 0777 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5816] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5815] <... openat resumed>) = 3 [pid 5814] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5813] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5816] <... prctl resumed>) = 0 [pid 5815] write(3, "1000", 4 [pid 5814] <... openat resumed>) = 3 [pid 5813] <... madvise resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5816] setpgid(0, 0 [pid 5815] <... write resumed>) = 4 [pid 5814] write(3, "1", 1 [pid 5813] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5816] <... setpgid resumed>) = 0 [pid 5815] close(3 [pid 5814] <... write resumed>) = 1 [pid 5813] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5815] <... close resumed>) = 0 [pid 5814] write(3, "\x32\x00", 2 [pid 5813] write(3, "1", 1 [pid 5076] fstat(3, [pid 5816] <... openat resumed>) = 3 [pid 5815] symlink("/dev/binderfs", "./binderfs" [pid 5816] write(3, "1000", 4 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5817 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5815] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5817 attached [pid 5816] <... write resumed>) = 4 [pid 5815] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5076] getdents64(3, [pid 5816] close(3 [pid 5815] <... madvise resumed>) = 0 [pid 5816] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5817] chdir("./123" [pid 5816] symlink("/dev/binderfs", "./binderfs" [pid 5815] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5814] <... write resumed>) = 2 [pid 5813] <... write resumed>) = 1 [pid 5076] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5817] <... chdir resumed>) = 0 [pid 5816] <... symlink resumed>) = 0 [pid 5815] <... openat resumed>) = 3 [pid 5814] exit_group(0 [pid 5813] write(3, "\x32\x00", 2 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5817] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5816] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5815] write(3, "1", 1 [pid 5814] <... exit_group resumed>) = ? [pid 5816] <... madvise resumed>) = 0 [pid 5814] +++ exited with 0 +++ [pid 5816] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5817] <... prctl resumed>) = 0 [pid 5816] <... openat resumed>) = 3 [pid 5076] lstat("./118/binderfs", [pid 5817] setpgid(0, 0 [pid 5816] write(3, "1", 1 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5817] <... setpgid resumed>) = 0 [pid 5816] <... write resumed>) = 1 [pid 5815] <... write resumed>) = 1 [pid 5080] umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5816] write(3, "\x32\x00", 2 [pid 5815] write(3, "\x32\x00", 2 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./118/binderfs" [pid 5817] <... openat resumed>) = 3 [pid 5816] <... write resumed>) = 2 [pid 5815] <... write resumed>) = 2 [pid 5813] <... write resumed>) = 2 [pid 5080] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5817] write(3, "1000", 4 [pid 5816] exit_group(0 [pid 5815] exit_group(0 [pid 5813] exit_group(0 [pid 5080] <... openat resumed>) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5817] <... write resumed>) = 4 [pid 5816] <... exit_group resumed>) = ? [pid 5815] <... exit_group resumed>) = ? [pid 5813] <... exit_group resumed>) = ? [pid 5080] fstat(3, [pid 5817] close(3 [pid 5816] +++ exited with 0 +++ [pid 5815] +++ exited with 0 +++ [pid 5076] getdents64(3, [pid 5813] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5816, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5817] <... close resumed>) = 0 [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5813, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5817] symlink("/dev/binderfs", "./binderfs" [pid 5080] getdents64(3, [pid 5076] close(3 [pid 5817] <... symlink resumed>) = 0 [pid 5081] umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5817] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5817] <... madvise resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./118" [pid 5817] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] <... openat resumed>) = 3 [pid 5080] lstat("./127/binderfs", [pid 5817] <... openat resumed>) = 3 [pid 5081] fstat(3, [pid 5079] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5817] write(3, "1", 1 [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./119", 0777 [pid 5817] <... write resumed>) = 1 [pid 5081] getdents64(3, [pid 5080] unlink("./127/binderfs" [pid 5079] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5817] write(3, "\x32\x00", 2 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5079] fstat(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] lstat("./126/binderfs", [pid 5079] getdents64(3, [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] close(3 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] unlink("./126/binderfs" [pid 5080] <... close resumed>) = 0 [pid 5079] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5818 ./strace-static-x86_64: Process 5818 attached [pid 5817] <... write resumed>) = 2 [pid 5081] <... unlink resumed>) = 0 [pid 5080] rmdir("./127" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5818] chdir("./119" [pid 5817] exit_group(0 [pid 5081] getdents64(3, [pid 5079] lstat("./124/binderfs", [pid 5818] <... chdir resumed>) = 0 [pid 5817] <... exit_group resumed>) = ? [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] fstat(3, [pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5817] +++ exited with 0 +++ [pid 5081] close(3 [pid 5080] mkdir("./128", 0777 [pid 5079] unlink("./124/binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5818] <... prctl resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5817, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5818] setpgid(0, 0 [pid 5081] rmdir("./126" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, [pid 5075] getdents64(3, [pid 5818] <... setpgid resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5081] mkdir("./127", 0777 [pid 5079] close(3 [pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5819 [pid 5079] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5818] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] rmdir("./124" [pid 5075] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5818] write(3, "1000", 4 [pid 5079] <... rmdir resumed>) = 0 [pid 5818] <... write resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5820 [pid 5079] mkdir("./125", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5820 attached ./strace-static-x86_64: Process 5819 attached [pid 5818] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./113/binderfs", [pid 5820] chdir("./127" [pid 5819] chdir("./128" [pid 5818] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... chdir resumed>) = 0 [pid 5819] <... chdir resumed>) = 0 [pid 5818] symlink("/dev/binderfs", "./binderfs" [pid 5077] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5818] <... symlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5821 [pid 5075] unlink("./113/binderfs" [pid 5820] <... prctl resumed>) = 0 [pid 5819] <... prctl resumed>) = 0 [pid 5818] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... openat resumed>) = 3 [pid 5820] setpgid(0, 0 [pid 5819] setpgid(0, 0 [pid 5818] <... madvise resumed>) = 0 [pid 5077] fstat(3, [pid 5075] <... unlink resumed>) = 0 [pid 5820] <... setpgid resumed>) = 0 [pid 5819] <... setpgid resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5818] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5821 attached [pid 5820] <... openat resumed>) = 3 [pid 5819] <... openat resumed>) = 3 [pid 5818] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5075] close(3 [pid 5821] chdir("./125" [pid 5820] write(3, "1000", 4 [pid 5819] write(3, "1000", 4 [pid 5818] <... write resumed>) = 1 [pid 5077] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... close resumed>) = 0 [pid 5821] <... chdir resumed>) = 0 [pid 5820] <... write resumed>) = 4 [pid 5819] <... write resumed>) = 4 [pid 5818] write(3, "\x32\x00", 2 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] rmdir("./113" [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5820] close(3 [pid 5819] close(3) = 0 [pid 5819] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5818] <... write resumed>) = 2 [pid 5077] lstat("./123/binderfs", [pid 5821] <... prctl resumed>) = 0 [pid 5820] <... close resumed>) = 0 [pid 5819] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5818] exit_group(0 [pid 5075] <... rmdir resumed>) = 0 [pid 5821] setpgid(0, 0 [pid 5820] symlink("/dev/binderfs", "./binderfs" [pid 5819] <... madvise resumed>) = 0 [pid 5818] <... exit_group resumed>) = ? [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] mkdir("./114", 0777 [pid 5821] <... setpgid resumed>) = 0 [pid 5820] <... symlink resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY) = 3 [pid 5818] +++ exited with 0 +++ [pid 5819] write(3, "1", 1 [pid 5077] unlink("./123/binderfs" [pid 5819] <... write resumed>) = 1 [pid 5075] <... mkdir resumed>) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5819] write(3, "\x32\x00", 2 [pid 5077] <... unlink resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5820] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5819] <... write resumed>) = 2 [pid 5077] getdents64(3, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5821] write(3, "1000", 4 [pid 5820] <... madvise resumed>) = 0 [pid 5819] exit_group(0 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5821] <... write resumed>) = 4 [pid 5819] <... exit_group resumed>) = ? [pid 5821] close(3 [pid 5820] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5819] +++ exited with 0 +++ [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5822 [pid 5821] <... close resumed>) = 0 [pid 5820] <... openat resumed>) = 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5077] <... close resumed>) = 0 [pid 5821] symlink("/dev/binderfs", "./binderfs" [pid 5820] write(3, "1", 1 [pid 5077] rmdir("./123" [pid 5076] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5822 attached [pid 5821] <... symlink resumed>) = 0 [pid 5820] <... write resumed>) = 1 [pid 5822] chdir("./114" [pid 5821] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5820] write(3, "\x32\x00", 2 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5822] <... chdir resumed>) = 0 [pid 5821] <... madvise resumed>) = 0 [pid 5820] <... write resumed>) = 2 [pid 5077] mkdir("./124", 0777 [pid 5076] fstat(3, [pid 5822] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5821] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5820] exit_group(0 [pid 5822] <... prctl resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5822] setpgid(0, 0 [pid 5821] <... openat resumed>) = 3 [pid 5820] <... exit_group resumed>) = ? [pid 5080] umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, [pid 5822] <... setpgid resumed>) = 0 [pid 5821] write(3, "1", 1 [pid 5822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5820] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... openat resumed>) = 3 [pid 5821] <... write resumed>) = 1 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5080] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5823 attached [pid 5822] write(3, "1000", 4 [pid 5821] write(3, "\x32\x00", 2 [pid 5080] <... openat resumed>) = 3 [pid 5077] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5823 [pid 5076] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5822] <... write resumed>) = 4 [pid 5822] close(3 [pid 5081] umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5822] <... close resumed>) = 0 [pid 5821] <... write resumed>) = 2 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] chdir("./124" [pid 5822] symlink("/dev/binderfs", "./binderfs" [pid 5821] exit_group(0 [pid 5081] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] lstat("./119/binderfs", [pid 5823] <... chdir resumed>) = 0 [pid 5822] <... symlink resumed>) = 0 [pid 5821] <... exit_group resumed>) = ? [pid 5081] <... openat resumed>) = 3 [pid 5080] getdents64(3, [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5822] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] fstat(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5823] <... prctl resumed>) = 0 [pid 5822] <... madvise resumed>) = 0 [pid 5821] +++ exited with 0 +++ [pid 5081] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] unlink("./119/binderfs" [pid 5823] setpgid(0, 0 [pid 5822] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] getdents64(3, [pid 5080] umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5823] <... setpgid resumed>) = 0 [pid 5822] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5076] <... unlink resumed>) = 0 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5822] write(3, "1", 1 [pid 5081] umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] lstat("./128/binderfs", [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] getdents64(3, [pid 5823] <... openat resumed>) = 3 [pid 5822] <... write resumed>) = 1 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5822] write(3, "\x32\x00", 2 [pid 5081] lstat("./127/binderfs", [pid 5823] write(3, "1000", 4 [pid 5822] <... write resumed>) = 2 [pid 5081] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5080] unlink("./128/binderfs" [pid 5076] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5823] <... write resumed>) = 4 [pid 5822] exit_group(0 [pid 5081] unlink("./127/binderfs" [pid 5079] umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5823] close(3 [pid 5822] <... exit_group resumed>) = ? [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5823] <... close resumed>) = 0 [pid 5822] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5080] getdents64(3, [pid 5079] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... close resumed>) = 0 [pid 5823] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5080] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5823] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] close(3 [pid 5079] fstat(3, [pid 5076] rmdir("./119" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5823] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] rmdir("./127" [pid 5079] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5823] <... madvise resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] rmdir("./128" [pid 5079] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5076] mkdir("./120", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5081] mkdir("./128", 0777 [pid 5079] umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5823] <... openat resumed>) = 3 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5823] write(3, "1", 1 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] mkdir("./129", 0777 [pid 5079] lstat("./125/binderfs", [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] <... write resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5824 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] unlink("./125/binderfs" [pid 5823] write(3, "\x32\x00", 2 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... unlink resumed>) = 0 [pid 5075] fstat(3, [pid 5079] getdents64(3, 0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5825 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5826 [pid 5079] rmdir("./125"./strace-static-x86_64: Process 5824 attached ) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5825 attached [pid 5079] mkdir("./126", 0777 [pid 5825] chdir("./120" [pid 5824] chdir("./128" [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 ./strace-static-x86_64: Process 5826 attached [pid 5825] <... chdir resumed>) = 0 [pid 5824] <... chdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5826] chdir("./129" [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] <... chdir resumed>) = 0 [pid 5825] <... prctl resumed>) = 0 [pid 5824] <... prctl resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5827 [pid 5075] lstat("./114/binderfs", [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5825] setpgid(0, 0 [pid 5826] <... prctl resumed>) = 0 [pid 5825] <... setpgid resumed>) = 0 [pid 5824] setpgid(0, 0 [pid 5823] <... write resumed>) = 2 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5827 attached [pid 5826] setpgid(0, 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5824] <... setpgid resumed>) = 0 [pid 5823] exit_group(0 [pid 5075] unlink("./114/binderfs" [pid 5827] chdir("./126" [pid 5826] <... setpgid resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5823] <... exit_group resumed>) = ? [pid 5827] <... chdir resumed>) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5825] write(3, "1000", 4 [pid 5824] <... openat resumed>) = 3 [pid 5075] <... unlink resumed>) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5825] <... write resumed>) = 4 [pid 5823] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5823, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5826] write(3, "1000", 4 [pid 5825] close(3 [pid 5824] write(3, "1000", 4 [pid 5075] getdents64(3, [pid 5827] <... prctl resumed>) = 0 [pid 5826] <... write resumed>) = 4 [pid 5825] <... close resumed>) = 0 [pid 5824] <... write resumed>) = 4 [pid 5827] setpgid(0, 0 [pid 5826] close(3 [pid 5825] symlink("/dev/binderfs", "./binderfs" [pid 5824] close(3 [pid 5075] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5827] <... setpgid resumed>) = 0 [pid 5826] <... close resumed>) = 0 [pid 5825] <... symlink resumed>) = 0 [pid 5824] <... close resumed>) = 0 [pid 5077] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5826] symlink("/dev/binderfs", "./binderfs" [pid 5825] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5824] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] <... openat resumed>) = 3 [pid 5826] <... symlink resumed>) = 0 [pid 5825] <... madvise resumed>) = 0 [pid 5824] <... symlink resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5827] write(3, "1000", 4 [pid 5826] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5825] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5824] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... openat resumed>) = 3 [pid 5075] rmdir("./114" [pid 5827] <... write resumed>) = 4 [pid 5826] <... madvise resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5824] <... madvise resumed>) = 0 [pid 5077] fstat(3, [pid 5827] close(3 [pid 5826] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5825] write(3, "1", 1 [pid 5824] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5827] <... close resumed>) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5825] <... write resumed>) = 1 [pid 5824] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5075] mkdir("./115", 0777 [pid 5827] symlink("/dev/binderfs", "./binderfs" [pid 5826] write(3, "1", 1 [pid 5825] write(3, "\x32\x00", 2 [pid 5824] write(3, "1", 1 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 3 entries */, 32768) = 80 [pid 5827] <... symlink resumed>) = 0 [pid 5077] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5827] madvise(0x20000000, 4194304, MADV_MERGEABLE [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5827] <... madvise resumed>) = 0 [pid 5077] lstat("./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5827] openat(AT_FDCWD, "/sys/kernel/mm/ksm/run", O_WRONLY [pid 5077] unlink("./124/binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x555556d1f5d0) = 5828 [pid 5827] <... openat resumed>) = 3 [pid 5827] write(3, "1", 1 [pid 5077] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5828 attached [pid 5827] <... write resumed>) = 1 [pid 5826] <... write resumed>) = 1 [pid 5825] <... write resumed>) = 2 [pid 5824] <... write resumed>) = 1 [pid 5077] getdents64(3, [pid 5828] chdir("./115" [pid 5827] write(3, "\x32\x00", 2 [pid 5826] write(3, "\x32\x00", 2 [pid 5824] write(3, "\x32\x00", 2 [pid 5077] <... getdents64 resumed>0x555556d20620 /* 0 entries */, 32768) = 0 [pid 5828] <... chdir resumed>) = 0 [pid 5077] close(3 [pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5828] setpgid(0, 0 [pid 5825] <... exit_group resumed>) = ? [pid 5077] rmdir("./124" [pid 5828] <... setpgid resumed>) = 0 [pid 5827] <... write resumed>) = 2 [pid 5826] <... write resumed>) = 2 [pid 5825] +++ exited with 0 +++ [pid 5824] <... write resumed>) = 2 [pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5826] exit_group(0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5828] <... openat resumed>) = 3 [pid 5826] <... exit_group resumed>) = ? [pid 5824] exit_group(0 [pid 5077] mkdir("./125", 0777 [pid 5828] write(3, "1000", 4 [pid 5827] exit_group(0 [pid 5826] +++ exited with 0 +++ [pid 5824] <... exit_group resumed>) = ? [pid 5828] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5827] <... exit_group resumed>) = ? [pid 5824] +++ exited with 0 +++