./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3327071685 <...> Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts. execve("./syz-executor3327071685", ["./syz-executor3327071685"], 0x7fff9e9042a0 /* 10 vars */) = 0 brk(NULL) = 0x55555622a000 brk(0x55555622ad00) = 0x55555622ad00 arch_prctl(ARCH_SET_FS, 0x55555622a380) = 0 set_tid_address(0x55555622a650) = 5064 set_robust_list(0x55555622a660, 24) = 0 rseq(0x55555622aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3327071685", 4096) = 28 getrandom("\x1a\x7b\x18\xf5\xe6\x83\xa7\xc0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555622ad00 brk(0x55555624bd00) = 0x55555624bd00 brk(0x55555624c000) = 0x55555624c000 mprotect(0x7f3e400d7000, 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 5065 attached , child_tidptr=0x55555622a650) = 5065 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] set_robust_list(0x55555622a660, 24) = 0 ./strace-static-x86_64: Process 5066 attached [pid 5065] mkdir("./syzkaller.M9kc9C", 0700 [pid 5064] <... clone resumed>, child_tidptr=0x55555622a650) = 5066 [pid 5066] set_robust_list(0x55555622a660, 24 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5067 attached [pid 5067] set_robust_list(0x55555622a660, 24 [pid 5066] mkdir("./syzkaller.WnyKWJ", 0700 [pid 5064] <... clone resumed>, child_tidptr=0x55555622a650) = 5067 [pid 5067] <... set_robust_list resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] mkdir("./syzkaller.rAYKKe", 0700./strace-static-x86_64: Process 5068 attached ) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5065] chmod("./syzkaller.M9kc9C", 0777 [pid 5064] <... clone resumed>, child_tidptr=0x55555622a650) = 5068 [pid 5068] set_robust_list(0x55555622a660, 24) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... chmod resumed>) = 0 [pid 5067] chmod("./syzkaller.rAYKKe", 0777./strace-static-x86_64: Process 5069 attached [pid 5068] mkdir("./syzkaller.E7lkvK", 0700 [pid 5066] chmod("./syzkaller.WnyKWJ", 0777 [pid 5065] chdir("./syzkaller.M9kc9C" [pid 5064] <... clone resumed>, child_tidptr=0x55555622a650) = 5069 [pid 5066] <... chmod resumed>) = 0 [pid 5066] chdir("./syzkaller.WnyKWJ" [pid 5067] <... chmod resumed>) = 0 [pid 5069] set_robust_list(0x55555622a660, 24 [pid 5066] <... chdir resumed>) = 0 [pid 5066] mkdir("./0", 0777 [pid 5068] <... mkdir resumed>) = 0 [pid 5065] <... chdir resumed>) = 0 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5067] chdir("./syzkaller.rAYKKe" [pid 5066] <... mkdir resumed>) = 0 [pid 5065] mkdir("./0", 0777 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] mkdir("./syzkaller.0o2qpQ", 0700 [pid 5068] chmod("./syzkaller.E7lkvK", 0777 [pid 5067] <... chdir resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5068] <... chmod resumed>) = 0 [pid 5067] mkdir("./0", 0777 [pid 5066] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] chdir("./syzkaller.E7lkvK") = 0 [pid 5068] mkdir("./0", 0777 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5067] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5065] <... openat resumed>) = 3 [pid 5069] chmod("./syzkaller.0o2qpQ", 0777 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] <... chmod resumed>) = 0 [pid 5066] close(3 [pid 5069] chdir("./syzkaller.0o2qpQ" [pid 5067] <... openat resumed>) = 3 [pid 5066] <... close resumed>) = 0 [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... chdir resumed>) = 0 [pid 5069] mkdir("./0", 0777 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... openat resumed>) = 3 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] <... close resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 5068] close(3./strace-static-x86_64: Process 5070 attached ) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5070 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5070] set_robust_list(0x55555622a660, 24 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] set_robust_list(0x55555622a660, 24 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5069] close(3 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5070] chdir("./0" [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 5073 attached ./strace-static-x86_64: Process 5072 attached [pid 5071] chdir("./0" [pid 5070] <... chdir resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5072 [pid 5073] set_robust_list(0x55555622a660, 24) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] set_robust_list(0x55555622a660, 24 [pid 5071] <... chdir resumed>) = 0 [pid 5070] <... prctl resumed>) = 0 [pid 5073] chdir("./0" [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] setpgid(0, 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5073 [pid 5072] chdir("./0" [pid 5070] <... setpgid resumed>) = 0 [pid 5071] <... prctl resumed>) = 0 [pid 5073] <... chdir resumed>) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] setpgid(0, 0 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5074 attached [pid 5073] <... prctl resumed>) = 0 [pid 5071] <... setpgid resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5074 [pid 5073] setpgid(0, 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] set_robust_list(0x55555622a660, 24 [pid 5070] <... openat resumed>) = 3 [pid 5073] <... setpgid resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... chdir resumed>) = 0 [pid 5070] write(3, "1000", 4 [pid 5071] write(3, "1000", 4 [pid 5074] chdir("./0" [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... write resumed>) = 4 [pid 5070] <... write resumed>) = 4 [pid 5074] <... chdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] <... prctl resumed>) = 0 [pid 5071] close(3 [pid 5070] close(3 [pid 5072] setpgid(0, 0 [pid 5070] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] write(3, "1000", 4 [pid 5072] <... setpgid resumed>) = 0 [pid 5071] symlink("/dev/binderfs", "./binderfs" [pid 5070] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... prctl resumed>) = 0 [pid 5073] <... write resumed>) = 4 [pid 5073] close(3) = 0 [pid 5073] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] <... symlink resumed>) = 0 [pid 5070] <... symlink resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] setpgid(0, 0) = 0 [pid 5073] sync( [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... openat resumed>) = 3 [pid 5070] sync( [pid 5071] sync( [pid 5074] <... openat resumed>) = 3 [pid 5072] write(3, "1000", 4 [pid 5074] write(3, "1000", 4 [pid 5072] <... write resumed>) = 4 [pid 5074] <... write resumed>) = 4 [pid 5072] close(3) = 0 [pid 5074] close(3 [pid 5072] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... close resumed>) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... symlink resumed>) = 0 [pid 5074] <... symlink resumed>) = 0 [pid 5072] sync( [pid 5074] sync( [pid 5073] <... sync resumed>) = 0 [pid 5072] <... sync resumed>) = 0 [pid 5074] <... sync resumed>) = 0 [pid 5073] memfd_create("syzkaller", 0 [pid 5072] memfd_create("syzkaller", 0 [pid 5071] <... sync resumed>) = 0 [pid 5070] <... sync resumed>) = 0 [pid 5073] <... memfd_create resumed>) = 3 [pid 5072] <... memfd_create resumed>) = 3 [pid 5074] memfd_create("syzkaller", 0 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5071] memfd_create("syzkaller", 0 [pid 5074] <... memfd_create resumed>) = 3 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5071] <... memfd_create resumed>) = 3 [pid 5070] memfd_create("syzkaller", 0 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... mmap resumed>) = 0x7f3e37c00000 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5074] <... mmap resumed>) = 0x7f3e37c00000 [pid 5072] <... write resumed>) = 524288 [pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5070] <... memfd_create resumed>) = 3 [pid 5072] munmap(0x7f3e37c00000, 138412032 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... munmap resumed>) = 0 [pid 5070] <... mmap resumed>) = 0x7f3e37c00000 [pid 5074] <... write resumed>) = 524288 [pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5072] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5074] munmap(0x7f3e37c00000, 138412032 [pid 5072] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... munmap resumed>) = 0 [pid 5073] <... write resumed>) = 524288 [pid 5072] <... ioctl resumed>) = 0 [pid 5071] <... write resumed>) = 524288 [pid 5073] munmap(0x7f3e37c00000, 138412032 [pid 5074] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5074] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... munmap resumed>) = 0 [pid 5072] close(3 [pid 5071] munmap(0x7f3e37c00000, 138412032 [pid 5070] <... write resumed>) = 524288 [pid 5074] <... ioctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5074] close(3 [pid 5073] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] close(4 [pid 5070] munmap(0x7f3e37c00000, 138412032 [pid 5074] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5071] <... munmap resumed>) = 0 [pid 5070] <... munmap resumed>) = 0 [pid 5073] ioctl(4, LOOP_SET_FD, 3 [pid 5072] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5074] close(4) = 0 [pid 5074] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5071] ioctl(4, LOOP_SET_FD, 3 [pid 5070] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... mkdir resumed>) = 0 [ 75.827051][ T5072] loop2: detected capacity change from 0 to 1024 [ 75.839422][ T5074] loop4: detected capacity change from 0 to 1024 [ 75.853299][ T5073] loop3: detected capacity change from 0 to 1024 [ 75.866297][ T5070] loop1: detected capacity change from 0 to 1024 [pid 5072] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5071] <... ioctl resumed>) = 0 [pid 5074] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5070] <... ioctl resumed>) = 0 [pid 5070] close(3) = 0 [pid 5070] close(4) = 0 [pid 5070] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5073] <... ioctl resumed>) = 0 [pid 5071] close(3 [pid 5073] close(3 [pid 5071] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5071] close(4) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5073] close(4 [pid 5071] <... mkdir resumed>) = 0 [pid 5070] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5074] <... mount resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5073] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5074] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5073] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... mount resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5073] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5072] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5074] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5072] <... chdir resumed>) = 0 [ 75.877636][ T5071] loop0: detected capacity change from 0 to 1024 [pid 5074] <... chdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... mount resumed>) = 0 [pid 5070] <... mount resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... mount resumed>) = 0 [pid 5072] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5072] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5070] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5073] <... openat resumed>) = 3 [pid 5070] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5074] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5070] <... chdir resumed>) = 0 [pid 5073] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5070] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5071] <... chdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5071] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5073] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5073] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5072] <... open resumed>) = 4 [pid 5070] <... open resumed>) = 4 [pid 5074] <... open resumed>) = 4 [pid 5074] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5073] <... open resumed>) = 4 [pid 5071] <... open resumed>) = 4 [pid 5072] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5070] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5073] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5071] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5072] <... creat resumed>) = 5 [pid 5070] <... creat resumed>) = 5 [pid 5074] <... creat resumed>) = 5 [pid 5072] exit_group(0 [pid 5074] exit_group(0 [pid 5073] <... creat resumed>) = 5 [pid 5072] <... exit_group resumed>) = ? [pid 5070] exit_group(0 [pid 5074] <... exit_group resumed>) = ? [pid 5071] <... creat resumed>) = 5 [pid 5070] <... exit_group resumed>) = ? [pid 5073] exit_group(0 [pid 5072] +++ exited with 0 +++ [pid 5070] +++ exited with 0 +++ [pid 5074] +++ exited with 0 +++ [pid 5073] <... exit_group resumed>) = ? [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5067] <... restart_syscall resumed>) = 0 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5067] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5067] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5066] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... openat resumed>) = 3 [pid 5067] newfstatat(3, "", [pid 5066] <... openat resumed>) = 3 [pid 5069] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] newfstatat(3, "", [pid 5067] getdents64(3, [pid 5071] exit_group(0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5073] +++ exited with 0 +++ [pid 5071] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, [pid 5071] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5069] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5066] <... umount2 resumed>) = 0 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5066] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] getdents64(3, [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... openat resumed>) = 4 [pid 5066] <... openat resumed>) = 4 [pid 5065] <... umount2 resumed>) = 0 [pid 5069] newfstatat(4, "", [pid 5068] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(4, "", [pid 5066] newfstatat(4, "", [pid 5065] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5068] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5068] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5069] close(4 [pid 5068] newfstatat(4, "", [pid 5069] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] getdents64(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(4, [pid 5067] getdents64(4, [pid 5066] getdents64(4, [pid 5065] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] close(4 [pid 5067] getdents64(4, [pid 5066] getdents64(4, [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] close(4 [pid 5065] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... rmdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5066] close(4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... close resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5065] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] unlink("./0/binderfs" [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... unlink resumed>) = 0 [pid 5068] unlink("./0/binderfs" [pid 5067] <... rmdir resumed>) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5068] <... unlink resumed>) = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./0" [pid 5069] getdents64(3, [pid 5068] <... rmdir resumed>) = 0 [pid 5067] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... rmdir resumed>) = 0 [pid 5065] newfstatat(4, "", [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3) = 0 [pid 5068] mkdir("./1", 0777 [pid 5067] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5066] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] rmdir("./0" [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] unlink("./0/binderfs" [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] getdents64(4, [pid 5069] mkdir("./1", 0777 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] <... unlink resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5067] getdents64(3, [pid 5066] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5065] getdents64(4, [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] unlink("./0/binderfs" [pid 5065] close(4) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5065] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] close(3 [pid 5066] getdents64(3, [pid 5065] <... rmdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] close(3) = 0 [pid 5067] <... close resumed>) = 0 [pid 5066] rmdir("./0" [pid 5065] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./0" [pid 5066] <... rmdir resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5067] <... rmdir resumed>) = 0 [pid 5066] mkdir("./1", 0777 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] mkdir("./1", 0777) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5065] unlink("./0/binderfs" [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] <... unlink resumed>) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3) = 0 [pid 5065] rmdir("./0") = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] mkdir("./1", 0777 [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] <... mkdir resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x55555622a660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5078 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5078] chdir("./1") = 0 [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 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs" [pid 5069] close(3 [pid 5068] close(3 [pid 5078] <... symlink resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5078] sync( [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5065] close(3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] close(3 [pid 5065] <... close resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5080 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5081 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x55555622a660, 24./strace-static-x86_64: Process 5081 attached ) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] set_robust_list(0x55555622a660, 24 [pid 5080] chdir("./1" [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5083 [pid 5081] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5083 attached [pid 5081] chdir("./1" [pid 5080] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5083] set_robust_list(0x55555622a660, 24 [pid 5081] <... chdir resumed>) = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... set_robust_list resumed>) = 0 [pid 5082] set_robust_list(0x55555622a660, 24 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... prctl resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5082 [pid 5083] chdir("./1" [pid 5081] <... prctl resumed>) = 0 [pid 5080] setpgid(0, 0 [pid 5083] <... chdir resumed>) = 0 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] setpgid(0, 0 [pid 5080] <... setpgid resumed>) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] chdir("./1" [pid 5081] <... setpgid resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... prctl resumed>) = 0 [pid 5082] <... chdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] setpgid(0, 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 3 [pid 5078] <... sync resumed>) = 0 [pid 5083] <... setpgid resumed>) = 0 [pid 5082] <... prctl resumed>) = 0 [pid 5081] write(3, "1000", 4 [pid 5080] write(3, "1000", 4 [pid 5078] memfd_create("syzkaller", 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] setpgid(0, 0 [pid 5081] <... write resumed>) = 4 [pid 5080] <... write resumed>) = 4 [pid 5078] <... memfd_create resumed>) = 3 [pid 5082] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5080] close(3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5078] <... mmap resumed>) = 0x7f3e37c00000 [pid 5083] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5081] symlink("/dev/binderfs", "./binderfs" [pid 5080] symlink("/dev/binderfs", "./binderfs" [pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5083] write(3, "1000", 4 [pid 5082] write(3, "1000", 4 [pid 5081] <... symlink resumed>) = 0 [pid 5080] <... symlink resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5082] <... write resumed>) = 4 [pid 5083] close(3 [pid 5082] close(3 [pid 5083] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5080] sync( [pid 5083] symlink("/dev/binderfs", "./binderfs" [pid 5081] sync( [pid 5082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] sync( [pid 5083] <... symlink resumed>) = 0 [pid 5083] sync( [pid 5080] <... sync resumed>) = 0 [pid 5080] memfd_create("syzkaller", 0) = 3 [pid 5078] <... write resumed>) = 524288 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5083] <... sync resumed>) = 0 [pid 5082] <... sync resumed>) = 0 [pid 5081] <... sync resumed>) = 0 [pid 5083] memfd_create("syzkaller", 0 [pid 5082] memfd_create("syzkaller", 0 [pid 5078] munmap(0x7f3e37c00000, 138412032 [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5083] <... memfd_create resumed>) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] <... memfd_create resumed>) = 3 [pid 5081] <... mmap resumed>) = 0x7f3e37c00000 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5078] <... munmap resumed>) = 0 [pid 5083] <... mmap resumed>) = 0x7f3e37c00000 [pid 5078] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5082] <... mmap resumed>) = 0x7f3e37c00000 [pid 5078] <... openat resumed>) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5078] <... ioctl resumed>) = 0 [pid 5083] <... write resumed>) = 524288 [pid 5081] <... write resumed>) = 524288 [pid 5080] <... write resumed>) = 524288 [pid 5078] close(3 [pid 5083] munmap(0x7f3e37c00000, 138412032 [pid 5081] munmap(0x7f3e37c00000, 138412032 [pid 5080] munmap(0x7f3e37c00000, 138412032 [pid 5078] <... close resumed>) = 0 [pid 5083] <... munmap resumed>) = 0 [pid 5081] <... munmap resumed>) = 0 [pid 5080] <... munmap resumed>) = 0 [pid 5078] close(4 [pid 5083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] <... write resumed>) = 524288 [pid 5078] <... close resumed>) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5082] munmap(0x7f3e37c00000, 138412032 [pid 5081] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5083] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... munmap resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5080] <... openat resumed>) = 4 [pid 5078] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5080] ioctl(4, LOOP_SET_FD, 3 [ 76.371322][ T5078] loop2: detected capacity change from 0 to 1024 [ 76.401446][ T5083] loop1: detected capacity change from 0 to 1024 [ 76.403019][ T5081] loop3: detected capacity change from 0 to 1024 [ 76.415077][ T5080] loop4: detected capacity change from 0 to 1024 [pid 5081] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... mkdir resumed>) = 0 [pid 5078] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5082] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... close resumed>) = 0 [pid 5078] <... mount resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5083] close(4 [pid 5078] <... openat resumed>) = 3 [pid 5083] <... close resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5083] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5078] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5080] close(3 [pid 5078] <... chdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] close(4 [pid 5078] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... mkdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5078] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5080] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5083] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5080] <... mkdir resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5080] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5082] close(3) = 0 [pid 5082] close(4) = 0 [pid 5082] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5082] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] close(4) = 0 [pid 5078] <... open resumed>) = 4 [pid 5081] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5078] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5082] <... mount resumed>) = 0 [pid 5080] <... mount resumed>) = 0 [pid 5083] <... mount resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5082] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5081] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5080] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5083] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5083] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5080] <... openat resumed>) = 3 [pid 5083] <... chdir resumed>) = 0 [pid 5082] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5080] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] <... chdir resumed>) = 0 [pid 5080] <... chdir resumed>) = 0 [pid 5083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5083] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5082] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5080] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5078] <... creat resumed>) = 5 [pid 5081] <... mount resumed>) = 0 [ 76.423330][ T5082] loop0: detected capacity change from 0 to 1024 [pid 5078] exit_group(0) = ? [pid 5081] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5083] <... open resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5082] <... open resumed>) = 4 [pid 5081] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5080] <... open resumed>) = 4 [pid 5083] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5081] <... chdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] +++ exited with 0 +++ [pid 5082] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5081] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5081] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5083] <... creat resumed>) = 5 [pid 5067] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] exit_group(0 [pid 5067] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] <... exit_group resumed>) = ? [pid 5067] newfstatat(3, "", [pid 5083] +++ exited with 0 +++ [pid 5082] <... creat resumed>) = 5 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5080] <... creat resumed>) = 5 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5081] <... open resumed>) = 4 [pid 5067] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5082] exit_group(0) = ? [pid 5080] exit_group(0 [pid 5082] +++ exited with 0 +++ [pid 5080] <... exit_group resumed>) = ? [pid 5080] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5069] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, [pid 5081] <... creat resumed>) = 5 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5081] exit_group(0 [pid 5069] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... exit_group resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5068] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = 0 [pid 5069] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5067] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = 0 [pid 5065] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(3, "", [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... openat resumed>) = 4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(4, "", [pid 5065] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, [pid 5066] <... openat resumed>) = 4 [pid 5065] <... openat resumed>) = 4 [pid 5069] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] newfstatat(4, "", [pid 5065] newfstatat(4, "", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(4, [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] getdents64(4, [pid 5069] <... openat resumed>) = 4 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] close(4 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] <... close resumed>) = 0 [pid 5066] getdents64(4, [pid 5069] newfstatat(4, "", [pid 5068] <... umount2 resumed>) = 0 [pid 5067] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] getdents64(4, [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5067] <... rmdir resumed>) = 0 [pid 5066] close(4 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... close resumed>) = 0 [pid 5065] close(4 [pid 5069] getdents64(4, [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5065] <... close resumed>) = 0 [pid 5069] close(4) = 0 [pid 5068] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] unlink("./1/binderfs" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... unlink resumed>) = 0 [pid 5065] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(3, [pid 5069] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] close(3 [pid 5065] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5069] unlink("./1/binderfs" [pid 5067] <... close resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] rmdir("./1" [pid 5068] newfstatat(4, "", [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, [pid 5067] <... rmdir resumed>) = 0 [pid 5065] unlink("./1/binderfs" [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(3, [pid 5065] <... unlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] mkdir("./2", 0777 [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5068] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5069] close(3 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... close resumed>) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5069] rmdir("./1" [pid 5065] getdents64(3, [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] unlink("./1/binderfs" [pid 5066] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5069] mkdir("./2", 0777 [pid 5068] <... unlink resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5065] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] close(3 [pid 5066] unlink("./1/binderfs" [pid 5065] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5065] rmdir("./1" [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./1") = 0 [pid 5066] getdents64(3, [pid 5065] <... rmdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] mkdir("./2", 0777 [pid 5068] mkdir("./2", 0777 [pid 5066] close(3 [pid 5065] <... mkdir resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5066] rmdir("./1") = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] <... mkdir resumed>) = 0 [pid 5066] mkdir("./2", 0777 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] <... mkdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] close(3 [pid 5068] <... ioctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached [pid 5068] close(3 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5085 attached [pid 5084] set_robust_list(0x55555622a660, 24 [pid 5068] <... close resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5084 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5085 [pid 5066] close(3 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 [pid 5085] set_robust_list(0x55555622a660, 24 [pid 5084] chdir("./2" [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached [pid 5085] <... set_robust_list resumed>) = 0 [pid 5084] <... chdir resumed>) = 0 [pid 5065] close(3 [pid 5086] set_robust_list(0x55555622a660, 24 [pid 5085] chdir("./2" [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5086 ./strace-static-x86_64: Process 5088 attached [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5084] <... prctl resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5088] set_robust_list(0x55555622a660, 24 [pid 5086] chdir("./2" [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] setpgid(0, 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5088 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... set_robust_list resumed>) = 0 [pid 5086] <... chdir resumed>) = 0 [pid 5085] <... prctl resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5088] chdir("./2" [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] <... chdir resumed>) = 0 [pid 5086] <... prctl resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5089 attached [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] setpgid(0, 0 [pid 5085] setpgid(0, 0 [pid 5084] <... openat resumed>) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5089 [pid 5089] set_robust_list(0x55555622a660, 24 [pid 5088] <... prctl resumed>) = 0 [pid 5086] <... setpgid resumed>) = 0 [pid 5085] <... setpgid resumed>) = 0 [pid 5084] write(3, "1000", 4 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] setpgid(0, 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] chdir("./2" [pid 5088] <... setpgid resumed>) = 0 [pid 5086] <... openat resumed>) = 3 [pid 5084] <... write resumed>) = 4 [pid 5089] <... chdir resumed>) = 0 [pid 5086] write(3, "1000", 4 [pid 5084] close(3 [pid 5086] <... write resumed>) = 4 [pid 5085] <... openat resumed>) = 3 [pid 5084] <... close resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs" [pid 5088] <... openat resumed>) = 3 [pid 5086] <... symlink resumed>) = 0 [pid 5088] write(3, "1000", 4) = 4 [pid 5086] sync( [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] close(3 [pid 5085] write(3, "1000", 4 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5089] <... prctl resumed>) = 0 [pid 5088] <... close resumed>) = 0 [pid 5085] <... write resumed>) = 4 [pid 5089] setpgid(0, 0 [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5085] close(3 [pid 5084] <... symlink resumed>) = 0 [pid 5089] <... setpgid resumed>) = 0 [pid 5088] <... symlink resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5084] sync( [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] sync( [pid 5085] symlink("/dev/binderfs", "./binderfs" [pid 5089] <... openat resumed>) = 3 [pid 5085] <... symlink resumed>) = 0 [pid 5085] sync( [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3 [pid 5086] <... sync resumed>) = 0 [pid 5089] <... close resumed>) = 0 [pid 5086] memfd_create("syzkaller", 0 [pid 5089] symlink("/dev/binderfs", "./binderfs" [pid 5086] <... memfd_create resumed>) = 3 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... symlink resumed>) = 0 [pid 5086] <... mmap resumed>) = 0x7f3e37c00000 [pid 5089] sync( [pid 5084] <... sync resumed>) = 0 [pid 5088] <... sync resumed>) = 0 [pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5085] <... sync resumed>) = 0 [pid 5084] memfd_create("syzkaller", 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5084] <... memfd_create resumed>) = 3 [pid 5089] <... sync resumed>) = 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5085] <... memfd_create resumed>) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] <... memfd_create resumed>) = 3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] <... mmap resumed>) = 0x7f3e37c00000 [pid 5089] <... memfd_create resumed>) = 3 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] <... mmap resumed>) = 0x7f3e37c00000 [pid 5088] <... mmap resumed>) = 0x7f3e37c00000 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] <... mmap resumed>) = 0x7f3e37c00000 [pid 5086] <... write resumed>) = 524288 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5088] <... write resumed>) = 524288 [pid 5086] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5088] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... write resumed>) = 524288 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5086] <... openat resumed>) = 4 [pid 5085] <... write resumed>) = 524288 [pid 5089] munmap(0x7f3e37c00000, 138412032 [pid 5088] <... openat resumed>) = 4 [pid 5086] ioctl(4, LOOP_SET_FD, 3 [pid 5085] munmap(0x7f3e37c00000, 138412032 [pid 5089] <... munmap resumed>) = 0 [pid 5085] <... munmap resumed>) = 0 [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5085] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5085] <... openat resumed>) = 4 [pid 5089] <... openat resumed>) = 4 [pid 5085] ioctl(4, LOOP_SET_FD, 3 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5088] <... ioctl resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5084] <... write resumed>) = 524288 [pid 5085] <... ioctl resumed>) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] close(3 [pid 5086] close(3 [pid 5084] munmap(0x7f3e37c00000, 138412032 [pid 5089] close(3) = 0 [pid 5088] <... close resumed>) = 0 [pid 5086] <... close resumed>) = 0 [pid 5085] close(3 [pid 5084] <... munmap resumed>) = 0 [pid 5088] close(4 [pid 5086] close(4 [pid 5085] <... close resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5088] <... close resumed>) = 0 [pid 5089] close(4) = 0 [pid 5089] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5089] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5088] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5086] <... close resumed>) = 0 [pid 5085] close(4 [pid 5084] <... openat resumed>) = 4 [pid 5088] <... mkdir resumed>) = 0 [pid 5086] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5085] <... close resumed>) = 0 [ 76.883358][ T5088] loop1: detected capacity change from 0 to 1024 [ 76.884130][ T5086] loop3: detected capacity change from 0 to 1024 [ 76.893708][ T5085] loop4: detected capacity change from 0 to 1024 [ 76.901329][ T5089] loop0: detected capacity change from 0 to 1024 [pid 5084] ioctl(4, LOOP_SET_FD, 3 [pid 5086] <... mkdir resumed>) = 0 [pid 5088] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5086] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5085] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5084] <... ioctl resumed>) = 0 [pid 5085] <... mkdir resumed>) = 0 [pid 5084] close(3 [pid 5085] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5084] <... close resumed>) = 0 [pid 5084] close(4) = 0 [pid 5084] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5089] <... mount resumed>) = 0 [pid 5084] <... mkdir resumed>) = 0 [pid 5089] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5089] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5084] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5089] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5088] <... mount resumed>) = 0 [pid 5088] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5089] <... open resumed>) = 4 [pid 5088] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5084] <... mount resumed>) = 0 [pid 5088] <... chdir resumed>) = 0 [pid 5086] <... mount resumed>) = 0 [pid 5085] <... mount resumed>) = 0 [pid 5084] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5089] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5086] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5085] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5084] <... openat resumed>) = 3 [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] <... openat resumed>) = 3 [pid 5085] <... openat resumed>) = 3 [pid 5084] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] <... creat resumed>) = 5 [pid 5088] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5086] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5084] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5085] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5086] <... chdir resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5089] exit_group(0 [pid 5086] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5085] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5089] <... exit_group resumed>) = ? [pid 5086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] +++ exited with 0 +++ [pid 5085] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5086] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5084] <... open resumed>) = 4 [ 76.933359][ T5084] loop2: detected capacity change from 0 to 1024 [pid 5088] <... open resumed>) = 4 [pid 5084] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5085] <... open resumed>) = 4 [pid 5086] <... open resumed>) = 4 [pid 5085] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5086] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] <... openat resumed>) = 3 [pid 5088] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5084] <... creat resumed>) = 5 [pid 5065] newfstatat(3, "", [pid 5085] <... creat resumed>) = 5 [pid 5084] exit_group(0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5084] <... exit_group resumed>) = ? [pid 5065] getdents64(3, [pid 5086] <... creat resumed>) = 5 [pid 5085] exit_group(0 [pid 5084] +++ exited with 0 +++ [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5085] <... exit_group resumed>) = ? [pid 5065] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5086] exit_group(0) = ? [pid 5067] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5085] +++ exited with 0 +++ [pid 5067] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5088] <... creat resumed>) = 5 [pid 5067] <... openat resumed>) = 3 [pid 5067] newfstatat(3, "", [pid 5069] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5088] exit_group(0 [pid 5086] +++ exited with 0 +++ [pid 5088] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(3, [pid 5069] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... openat resumed>) = 3 [pid 5065] <... umount2 resumed>) = 0 [pid 5069] newfstatat(3, "", [pid 5067] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] +++ exited with 0 +++ [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5069] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(3, "", [pid 5066] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5066] newfstatat(3, "", [pid 5065] <... openat resumed>) = 4 [pid 5069] <... umount2 resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] newfstatat(4, "", [pid 5068] getdents64(3, [pid 5066] getdents64(3, [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] getdents64(4, [pid 5069] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5067] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] close(4 [pid 5069] <... openat resumed>) = 4 [pid 5065] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] newfstatat(4, "", [pid 5067] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... rmdir resumed>) = 0 [pid 5068] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5065] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5069] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... openat resumed>) = 4 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] getdents64(4, [pid 5066] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] unlink("./2/binderfs" [pid 5069] close(4) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(4, "", [pid 5065] <... unlink resumed>) = 0 [pid 5069] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(4, [pid 5065] getdents64(3, [pid 5069] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 4 [pid 5067] getdents64(4, [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5068] newfstatat(4, "", [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] close(3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] close(4 [pid 5066] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... close resumed>) = 0 [pid 5069] unlink("./2/binderfs" [pid 5068] getdents64(4, [pid 5067] <... close resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] rmdir("./2" [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(3, [pid 5068] getdents64(4, [pid 5067] <... rmdir resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5068] close(4 [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] newfstatat(4, "", [pid 5069] rmdir("./2" [pid 5068] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5066] getdents64(4, [pid 5065] mkdir("./3", 0777 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] unlink("./2/binderfs" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... unlink resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] getdents64(3, [pid 5068] unlink("./2/binderfs" [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5067] close(3) = 0 [pid 5069] mkdir("./3", 0777 [pid 5068] getdents64(3, [pid 5067] rmdir("./2" [pid 5066] getdents64(4, [pid 5065] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] close(4 [pid 5069] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5066] <... close resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... close resumed>) = 0 [pid 5066] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./2" [pid 5067] mkdir("./3", 0777 [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5066] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] mkdir("./3", 0777 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... mkdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] <... openat resumed>) = 3 [pid 5066] unlink("./2/binderfs" [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] <... unlink resumed>) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5066] rmdir("./2") = 0 [pid 5066] mkdir("./3", 0777) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5069] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3 [pid 5066] close(3 [pid 5065] close(3 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 ./strace-static-x86_64: Process 5090 attached [pid 5067] close(3 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] set_robust_list(0x55555622a660, 24 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5090 [pid 5067] <... close resumed>) = 0 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5091 [pid 5090] chdir("./3" [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5092 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached [pid 5090] <... chdir resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5093 ./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x55555622a660, 24 [pid 5092] set_robust_list(0x55555622a660, 24 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] <... set_robust_list resumed>) = 0 [pid 5090] setpgid(0, 0 [pid 5093] chdir("./3" [pid 5092] <... set_robust_list resumed>) = 0 [pid 5090] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5094 attached ./strace-static-x86_64: Process 5091 attached [pid 5093] <... chdir resumed>) = 0 [pid 5092] chdir("./3" [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] set_robust_list(0x55555622a660, 24 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] <... set_robust_list resumed>) = 0 [pid 5093] <... prctl resumed>) = 0 [pid 5092] <... chdir resumed>) = 0 [pid 5091] set_robust_list(0x55555622a660, 24 [pid 5090] <... openat resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5094 [pid 5093] setpgid(0, 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... setpgid resumed>) = 0 [pid 5092] <... prctl resumed>) = 0 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5094] chdir("./3" [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] setpgid(0, 0 [pid 5091] chdir("./3" [pid 5090] write(3, "1000", 4 [pid 5094] <... chdir resumed>) = 0 [pid 5093] <... openat resumed>) = 3 [pid 5092] <... setpgid resumed>) = 0 [pid 5091] <... chdir resumed>) = 0 [pid 5090] <... write resumed>) = 4 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] write(3, "1000", 4 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] close(3 [pid 5094] <... prctl resumed>) = 0 [pid 5093] <... write resumed>) = 4 [pid 5093] close(3 [pid 5094] setpgid(0, 0) = 0 [pid 5093] <... close resumed>) = 0 [pid 5090] <... close resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] symlink("/dev/binderfs", "./binderfs" [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5092] <... openat resumed>) = 3 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] <... symlink resumed>) = 0 [pid 5093] <... symlink resumed>) = 0 [pid 5090] sync( [pid 5094] <... openat resumed>) = 3 [pid 5093] sync( [pid 5092] write(3, "1000", 4 [pid 5091] <... prctl resumed>) = 0 [pid 5094] write(3, "1000", 4 [pid 5092] <... write resumed>) = 4 [pid 5091] setpgid(0, 0 [pid 5092] close(3 [pid 5091] <... setpgid resumed>) = 0 [pid 5094] <... write resumed>) = 4 [pid 5092] <... close resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] close(3 [pid 5092] symlink("/dev/binderfs", "./binderfs" [pid 5091] <... openat resumed>) = 3 [pid 5094] <... close resumed>) = 0 [pid 5094] symlink("/dev/binderfs", "./binderfs" [pid 5091] write(3, "1000", 4) = 4 [pid 5091] close(3) = 0 [pid 5091] symlink("/dev/binderfs", "./binderfs" [pid 5094] <... symlink resumed>) = 0 [pid 5094] sync( [pid 5093] <... sync resumed>) = 0 [pid 5092] <... symlink resumed>) = 0 [pid 5091] <... symlink resumed>) = 0 [pid 5090] <... sync resumed>) = 0 [pid 5093] memfd_create("syzkaller", 0 [pid 5092] sync( [pid 5091] sync( [pid 5093] <... memfd_create resumed>) = 3 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] <... sync resumed>) = 0 [pid 5093] <... mmap resumed>) = 0x7f3e37c00000 [pid 5094] memfd_create("syzkaller", 0 [pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5092] <... sync resumed>) = 0 [pid 5091] <... sync resumed>) = 0 [pid 5090] memfd_create("syzkaller", 0 [pid 5091] memfd_create("syzkaller", 0 [pid 5092] memfd_create("syzkaller", 0 [pid 5094] <... memfd_create resumed>) = 3 [pid 5090] <... memfd_create resumed>) = 3 [pid 5091] <... memfd_create resumed>) = 3 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] <... memfd_create resumed>) = 3 [pid 5090] <... mmap resumed>) = 0x7f3e37c00000 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5094] <... mmap resumed>) = 0x7f3e37c00000 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] <... mmap resumed>) = 0x7f3e37c00000 [pid 5092] <... mmap resumed>) = 0x7f3e37c00000 [pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5093] <... write resumed>) = 524288 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5093] munmap(0x7f3e37c00000, 138412032 [pid 5091] <... write resumed>) = 524288 [pid 5090] <... write resumed>) = 524288 [pid 5093] <... munmap resumed>) = 0 [pid 5091] munmap(0x7f3e37c00000, 138412032 [pid 5090] munmap(0x7f3e37c00000, 138412032 [pid 5091] <... munmap resumed>) = 0 [pid 5090] <... munmap resumed>) = 0 [pid 5094] <... write resumed>) = 524288 [pid 5092] <... write resumed>) = 524288 [pid 5093] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] munmap(0x7f3e37c00000, 138412032 [pid 5092] munmap(0x7f3e37c00000, 138412032 [pid 5091] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5093] <... openat resumed>) = 4 [pid 5091] <... openat resumed>) = 4 [pid 5090] <... openat resumed>) = 4 [pid 5094] <... munmap resumed>) = 0 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [pid 5090] ioctl(4, LOOP_SET_FD, 3 [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5093] ioctl(4, LOOP_SET_FD, 3 [pid 5092] <... munmap resumed>) = 0 [pid 5094] <... openat resumed>) = 4 [pid 5093] <... ioctl resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5091] <... ioctl resumed>) = 0 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5093] close(3 [pid 5092] <... openat resumed>) = 4 [pid 5091] close(3 [pid 5090] <... ioctl resumed>) = 0 [pid 5090] close(3 [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5090] <... close resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5090] close(4 [pid 5094] close(3 [pid 5093] close(4 [pid 5092] <... ioctl resumed>) = 0 [pid 5091] close(4 [pid 5090] <... close resumed>) = 0 [pid 5093] <... close resumed>) = 0 [pid 5092] close(3 [pid 5091] <... close resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5093] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5091] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5094] close(4 [pid 5093] <... mkdir resumed>) = 0 [pid 5092] <... close resumed>) = 0 [pid 5091] <... mkdir resumed>) = 0 [pid 5090] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5094] <... close resumed>) = 0 [pid 5091] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5094] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5092] close(4 [pid 5090] <... mkdir resumed>) = 0 [pid 5093] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5092] <... close resumed>) = 0 [pid 5094] <... mkdir resumed>) = 0 [pid 5092] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5090] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5094] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5092] <... mkdir resumed>) = 0 [pid 5092] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5091] <... mount resumed>) = 0 [pid 5091] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5091] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5092] <... mount resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5090] <... mount resumed>) = 0 [pid 5091] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [ 77.371750][ T5091] loop0: detected capacity change from 0 to 1024 [ 77.373270][ T5093] loop2: detected capacity change from 0 to 1024 [ 77.381369][ T5090] loop3: detected capacity change from 0 to 1024 [ 77.387231][ T5094] loop4: detected capacity change from 0 to 1024 [ 77.398823][ T5092] loop1: detected capacity change from 0 to 1024 [pid 5092] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5091] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5090] <... openat resumed>) = 3 [pid 5092] <... openat resumed>) = 3 [pid 5092] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5090] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5094] <... mount resumed>) = 0 [pid 5093] <... mount resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5091] <... open resumed>) = 4 [pid 5092] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5090] <... chdir resumed>) = 0 [pid 5094] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5093] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5092] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] <... openat resumed>) = 3 [pid 5093] <... openat resumed>) = 3 [pid 5090] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5094] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5093] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5091] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5094] <... chdir resumed>) = 0 [pid 5093] <... chdir resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5093] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5093] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5092] <... open resumed>) = 4 [pid 5094] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5093] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5092] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5091] <... creat resumed>) = 5 [pid 5091] exit_group(0 [pid 5092] <... creat resumed>) = 5 [pid 5091] <... exit_group resumed>) = ? [pid 5090] <... open resumed>) = 4 [pid 5093] <... open resumed>) = 4 [pid 5091] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5092] exit_group(0 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5092] <... exit_group resumed>) = ? [pid 5092] +++ exited with 0 +++ [pid 5090] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5094] <... open resumed>) = 4 [pid 5093] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5065] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] getdents64(3, [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5094] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5090] <... creat resumed>) = 5 [pid 5066] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] <... openat resumed>) = 3 [pid 5065] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5090] exit_group(0) = ? [pid 5090] +++ exited with 0 +++ [pid 5093] <... creat resumed>) = 5 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5066] getdents64(3, [pid 5094] <... creat resumed>) = 5 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5093] exit_group(0) = ? [pid 5094] exit_group(0 [pid 5093] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5094] <... exit_group resumed>) = ? [pid 5068] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5094] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5067] <... restart_syscall resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = 0 [pid 5069] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5067] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 3 [pid 5065] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] newfstatat(3, "", [pid 5067] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... umount2 resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, [pid 5067] <... openat resumed>) = 3 [pid 5066] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] newfstatat(3, "", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5067] getdents64(3, [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(4, "", [pid 5068] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] getdents64(4, [pid 5068] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5066] <... openat resumed>) = 4 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] <... umount2 resumed>) = 0 [pid 5065] getdents64(4, [pid 5066] newfstatat(4, "", [pid 5068] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5066] getdents64(4, [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] close(4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] getdents64(4, [pid 5065] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(4, "", [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(4, [pid 5067] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(4 [pid 5065] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5068] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 4 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] unlink("./3/binderfs" [pid 5069] newfstatat(4, "", [pid 5068] <... unlink resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 5068] getdents64(3, [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./3" [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] newfstatat(4, "", [pid 5066] <... rmdir resumed>) = 0 [pid 5065] unlink("./3/binderfs" [pid 5069] getdents64(4, [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] mkdir("./4", 0777 [pid 5067] getdents64(4, [pid 5066] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... unlink resumed>) = 0 [pid 5069] close(4 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] <... close resumed>) = 0 [pid 5065] getdents64(3, [pid 5069] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] getdents64(4, [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5065] close(3 [pid 5069] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(4 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 3 [pid 5067] <... close resumed>) = 0 [pid 5066] unlink("./3/binderfs" [pid 5065] rmdir("./3" [pid 5069] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... rmdir resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5065] mkdir("./4", 0777 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3 [pid 5069] unlink("./3/binderfs" [pid 5067] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... close resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] rmdir("./3" [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... unlink resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5069] getdents64(3, [pid 5066] <... rmdir resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] mkdir("./4", 0777 [pid 5067] unlink("./3/binderfs" [pid 5066] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] close(3 [pid 5067] <... unlink resumed>) = 0 [pid 5067] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5069] rmdir("./3" [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] <... rmdir resumed>) = 0 [pid 5067] rmdir("./3" [pid 5066] <... openat resumed>) = 3 [pid 5067] <... rmdir resumed>) = 0 [pid 5069] mkdir("./4", 0777 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] <... ioctl resumed>) = 0 [pid 5067] mkdir("./4", 0777 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] close(3 [pid 5067] <... mkdir resumed>) = 0 [pid 5065] close(3 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached , child_tidptr=0x55555622a650) = 5095 ./strace-static-x86_64: Process 5096 attached [pid 5095] set_robust_list(0x55555622a660, 24 [pid 5067] <... openat resumed>) = 3 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5096 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5096] set_robust_list(0x55555622a660, 24 [pid 5095] chdir("./4" [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] <... chdir resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] chdir("./4" [pid 5095] <... prctl resumed>) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] <... chdir resumed>) = 0 [pid 5095] <... openat resumed>) = 3 [pid 5066] <... ioctl resumed>) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5095] write(3, "1000", 4 [pid 5066] close(3 [pid 5095] <... write resumed>) = 4 [pid 5066] <... close resumed>) = 0 [pid 5095] close(3 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] <... close resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] symlink("/dev/binderfs", "./binderfs" [pid 5096] <... openat resumed>) = 3 [pid 5096] write(3, "1000", 4./strace-static-x86_64: Process 5097 attached [pid 5095] <... symlink resumed>) = 0 [pid 5096] <... write resumed>) = 4 [pid 5097] set_robust_list(0x55555622a660, 24) = 0 [pid 5096] close(3 [pid 5095] sync( [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5097 [pid 5097] chdir("./4" [pid 5096] <... close resumed>) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs" [pid 5097] <... chdir resumed>) = 0 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5097] setpgid(0, 0) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] <... symlink resumed>) = 0 [pid 5095] <... sync resumed>) = 0 [pid 5095] memfd_create("syzkaller", 0 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3 [pid 5095] <... memfd_create resumed>) = 3 [pid 5097] <... close resumed>) = 0 [pid 5097] symlink("/dev/binderfs", "./binderfs" [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5097] <... symlink resumed>) = 0 [pid 5095] <... mmap resumed>) = 0x7f3e37c00000 [pid 5097] sync( [pid 5096] sync( [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5069] close(3 [pid 5067] close(3 [pid 5069] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5097] <... sync resumed>) = 0 [pid 5096] <... sync resumed>) = 0 [pid 5096] memfd_create("syzkaller", 0 [pid 5097] memfd_create("syzkaller", 0 [pid 5096] <... memfd_create resumed>) = 3 [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 5099 attached ./strace-static-x86_64: Process 5098 attached [pid 5097] <... memfd_create resumed>) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5095] <... write resumed>) = 524288 [pid 5099] set_robust_list(0x55555622a660, 24 [pid 5098] set_robust_list(0x55555622a660, 24 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5096] <... mmap resumed>) = 0x7f3e37c00000 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5098 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5097] <... mmap resumed>) = 0x7f3e37c00000 [pid 5099] chdir("./4" [pid 5098] <... set_robust_list resumed>) = 0 [pid 5098] chdir("./4" [pid 5099] <... chdir resumed>) = 0 [pid 5098] <... chdir resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... prctl resumed>) = 0 [pid 5098] <... prctl resumed>) = 0 [pid 5099] setpgid(0, 0 [pid 5098] setpgid(0, 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5098] <... setpgid resumed>) = 0 [pid 5097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] <... openat resumed>) = 3 [pid 5098] <... openat resumed>) = 3 [pid 5095] munmap(0x7f3e37c00000, 138412032 [pid 5099] write(3, "1000", 4 [pid 5098] write(3, "1000", 4 [pid 5095] <... munmap resumed>) = 0 [pid 5099] <... write resumed>) = 4 [pid 5098] <... write resumed>) = 4 [pid 5099] close(3 [pid 5098] close(3 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5099] <... close resumed>) = 0 [pid 5098] <... close resumed>) = 0 [pid 5095] <... openat resumed>) = 4 [pid 5099] symlink("/dev/binderfs", "./binderfs" [pid 5098] symlink("/dev/binderfs", "./binderfs" [pid 5097] <... write resumed>) = 524288 [pid 5096] <... write resumed>) = 524288 [pid 5095] ioctl(4, LOOP_SET_FD, 3 [pid 5099] <... symlink resumed>) = 0 [pid 5098] <... symlink resumed>) = 0 [pid 5099] sync( [pid 5096] munmap(0x7f3e37c00000, 138412032 [pid 5099] <... sync resumed>) = 0 [pid 5098] sync( [pid 5097] munmap(0x7f3e37c00000, 138412032 [pid 5095] <... ioctl resumed>) = 0 [pid 5099] memfd_create("syzkaller", 0 [pid 5096] <... munmap resumed>) = 0 [pid 5095] close(3 [pid 5099] <... memfd_create resumed>) = 3 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5098] <... sync resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5099] <... mmap resumed>) = 0x7f3e37c00000 [pid 5098] memfd_create("syzkaller", 0 [pid 5095] close(4 [pid 5099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5097] <... munmap resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] <... close resumed>) = 0 [pid 5098] <... memfd_create resumed>) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5096] <... openat resumed>) = 4 [pid 5096] ioctl(4, LOOP_SET_FD, 3 [pid 5097] <... openat resumed>) = 4 [pid 5097] ioctl(4, LOOP_SET_FD, 3 [pid 5095] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5099] <... write resumed>) = 524288 [pid 5097] <... ioctl resumed>) = 0 [pid 5096] <... ioctl resumed>) = 0 [pid 5095] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5098] <... write resumed>) = 524288 [pid 5097] close(3 [pid 5099] munmap(0x7f3e37c00000, 138412032 [pid 5097] <... close resumed>) = 0 [pid 5096] close(3 [pid 5099] <... munmap resumed>) = 0 [pid 5097] close(4 [pid 5096] <... close resumed>) = 0 [pid 5096] close(4) = 0 [pid 5097] <... close resumed>) = 0 [pid 5097] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5099] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5097] <... mkdir resumed>) = 0 [pid 5096] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5098] munmap(0x7f3e37c00000, 138412032 [pid 5099] <... openat resumed>) = 4 [ 77.838939][ T5095] loop0: detected capacity change from 0 to 1024 [ 77.868383][ T5096] loop3: detected capacity change from 0 to 1024 [ 77.878403][ T5097] loop1: detected capacity change from 0 to 1024 [pid 5098] <... munmap resumed>) = 0 [pid 5097] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5096] <... mkdir resumed>) = 0 [pid 5099] ioctl(4, LOOP_SET_FD, 3 [pid 5098] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5096] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5095] <... mount resumed>) = 0 [pid 5099] <... ioctl resumed>) = 0 [pid 5097] <... mount resumed>) = 0 [pid 5098] <... openat resumed>) = 4 [pid 5095] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5098] ioctl(4, LOOP_SET_FD, 3 [pid 5097] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5098] <... ioctl resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5095] <... openat resumed>) = 3 [pid 5095] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5095] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5099] close(3) = 0 [pid 5099] close(4) = 0 [pid 5099] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5099] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5097] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5096] <... mount resumed>) = 0 [pid 5095] <... open resumed>) = 4 [pid 5097] <... chdir resumed>) = 0 [pid 5096] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5096] <... openat resumed>) = 3 [pid 5095] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5096] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5097] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5096] <... chdir resumed>) = 0 [pid 5097] <... open resumed>) = 4 [pid 5096] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5095] <... creat resumed>) = 5 [pid 5099] <... mount resumed>) = 0 [pid 5096] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5095] exit_group(0 [ 77.917733][ T5099] loop2: detected capacity change from 0 to 1024 [ 77.928452][ T5098] loop4: detected capacity change from 0 to 1024 [pid 5096] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5099] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5098] close(3 [pid 5095] <... exit_group resumed>) = ? [pid 5099] <... chdir resumed>) = 0 [pid 5098] <... close resumed>) = 0 [pid 5097] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5095] +++ exited with 0 +++ [pid 5098] close(4 [pid 5099] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5098] <... close resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5098] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5099] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5098] <... mkdir resumed>) = 0 [pid 5098] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5065] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5096] <... open resumed>) = 4 [pid 5065] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5096] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5099] <... open resumed>) = 4 [pid 5097] <... creat resumed>) = 5 [pid 5096] <... creat resumed>) = 5 [pid 5099] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5098] <... mount resumed>) = 0 [pid 5097] exit_group(0 [pid 5096] exit_group(0 [pid 5065] <... umount2 resumed>) = 0 [pid 5097] <... exit_group resumed>) = ? [pid 5065] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5098] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5097] +++ exited with 0 +++ [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5096] <... exit_group resumed>) = ? [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5098] <... openat resumed>) = 3 [pid 5065] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5098] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5098] <... chdir resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5098] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] <... openat resumed>) = 4 [pid 5099] <... creat resumed>) = 5 [pid 5098] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(4, "", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5096] +++ exited with 0 +++ [pid 5066] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5099] exit_group(0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5066] <... openat resumed>) = 3 [pid 5065] getdents64(4, [pid 5066] newfstatat(3, "", [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5099] <... exit_group resumed>) = ? [pid 5099] +++ exited with 0 +++ [pid 5098] <... open resumed>) = 4 [pid 5068] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] getdents64(3, [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] close(4 [pid 5066] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... close resumed>) = 0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5065] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] newfstatat(3, "", [pid 5098] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 5066] <... umount2 resumed>) = 0 [pid 5065] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] unlink("./4/binderfs" [pid 5067] <... openat resumed>) = 3 [pid 5066] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... unlink resumed>) = 0 [pid 5067] newfstatat(3, "", [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5098] <... creat resumed>) = 5 [pid 5067] getdents64(3, [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] getdents64(3, [pid 5098] exit_group(0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5098] <... exit_group resumed>) = ? [pid 5065] close(3 [pid 5098] +++ exited with 0 +++ [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./4" [pid 5068] <... umount2 resumed>) = 0 [pid 5067] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 4 [pid 5065] <... rmdir resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5066] newfstatat(4, "", [pid 5069] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] mkdir("./5", 0777 [pid 5069] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] getdents64(4, [pid 5065] <... mkdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] newfstatat(3, "", [pid 5066] getdents64(4, [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5066] close(4 [pid 5069] getdents64(3, [pid 5066] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./4/binderfs" [pid 5069] <... umount2 resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] <... unlink resumed>) = 0 [pid 5069] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] close(3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] rmdir("./4" [pid 5068] <... openat resumed>) = 4 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... rmdir resumed>) = 0 [pid 5069] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] mkdir("./5", 0777 [pid 5067] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] getdents64(4, [pid 5067] <... openat resumed>) = 4 [pid 5066] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5067] newfstatat(4, "", [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] newfstatat(4, "", [pid 5068] <... close resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5067] getdents64(4, [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5069] getdents64(4, [pid 5068] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5069] getdents64(4, [pid 5068] <... rmdir resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... close resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... rmdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] unlink("./4/binderfs" [pid 5067] unlink("./4/binderfs" [pid 5068] <... unlink resumed>) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5069] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] close(3 [pid 5067] <... close resumed>) = 0 [pid 5069] unlink("./4/binderfs" [pid 5068] <... close resumed>) = 0 [pid 5067] rmdir("./4" [pid 5069] <... unlink resumed>) = 0 [pid 5068] rmdir("./4" [pid 5067] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] mkdir("./5", 0777 [pid 5065] close(3 [pid 5068] mkdir("./5", 0777 [pid 5065] <... close resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] getdents64(3, [pid 5067] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5100 attached [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5069] rmdir("./4" [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] <... rmdir resumed>) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5100 [pid 5069] mkdir("./5", 0777 [pid 5100] set_robust_list(0x55555622a660, 24 [pid 5066] <... ioctl resumed>) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5100] chdir("./5") = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] <... openat resumed>) = 3 [pid 5100] write(3, "1000", 4./strace-static-x86_64: Process 5101 attached [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5101] set_robust_list(0x55555622a660, 24 [pid 5100] <... write resumed>) = 4 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5100] close(3 [pid 5101] chdir("./5" [pid 5100] <... close resumed>) = 0 [pid 5100] symlink("/dev/binderfs", "./binderfs" [pid 5101] <... chdir resumed>) = 0 [pid 5100] <... symlink resumed>) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0 [pid 5100] sync( [pid 5101] <... setpgid resumed>) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] close(3 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5101 [pid 5101] write(3, "1000", 4 [pid 5068] <... close resumed>) = 0 [pid 5067] close(3 [pid 5101] <... write resumed>) = 4 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5101] close(3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached [pid 5101] <... close resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5102] set_robust_list(0x55555622a660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5102 ./strace-static-x86_64: Process 5103 attached [pid 5101] symlink("/dev/binderfs", "./binderfs" [pid 5100] <... sync resumed>) = 0 [pid 5103] set_robust_list(0x55555622a660, 24 [pid 5101] <... symlink resumed>) = 0 [pid 5100] memfd_create("syzkaller", 0 [pid 5103] <... set_robust_list resumed>) = 0 [pid 5101] sync( [pid 5100] <... memfd_create resumed>) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5103 [pid 5103] chdir("./5" [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5103] <... chdir resumed>) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5103] setpgid(0, 0) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5102] chdir("./5") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] write(3, "1000", 4 [pid 5102] <... prctl resumed>) = 0 [pid 5103] <... write resumed>) = 4 [pid 5102] setpgid(0, 0 [pid 5103] close(3 [pid 5102] <... setpgid resumed>) = 0 [pid 5103] <... close resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5101] <... sync resumed>) = 0 ./strace-static-x86_64: Process 5104 attached [pid 5103] <... symlink resumed>) = 0 [pid 5102] <... openat resumed>) = 3 [pid 5101] memfd_create("syzkaller", 0 [pid 5100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5104 [pid 5104] set_robust_list(0x55555622a660, 24) = 0 [pid 5104] chdir("./5") = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... memfd_create resumed>) = 3 [pid 5100] <... write resumed>) = 524288 [pid 5104] <... prctl resumed>) = 0 [pid 5103] sync( [pid 5102] write(3, "1000", 4 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5102] <... write resumed>) = 4 [pid 5102] close(3) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs" [pid 5104] setpgid(0, 0 [pid 5101] <... mmap resumed>) = 0x7f3e37c00000 [pid 5104] <... setpgid resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] <... symlink resumed>) = 0 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5104] <... openat resumed>) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] sync( [pid 5100] munmap(0x7f3e37c00000, 138412032 [pid 5103] <... sync resumed>) = 0 [pid 5100] <... munmap resumed>) = 0 [pid 5103] memfd_create("syzkaller", 0) = 3 [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5104] <... sync resumed>) = 0 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5102] sync( [pid 5101] <... write resumed>) = 524288 [pid 5100] <... openat resumed>) = 4 [pid 5104] memfd_create("syzkaller", 0 [pid 5103] <... mmap resumed>) = 0x7f3e37c00000 [pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5102] <... sync resumed>) = 0 [pid 5104] <... memfd_create resumed>) = 3 [pid 5100] ioctl(4, LOOP_SET_FD, 3 [pid 5102] memfd_create("syzkaller", 0 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5102] <... memfd_create resumed>) = 3 [pid 5100] <... ioctl resumed>) = 0 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5104] <... mmap resumed>) = 0x7f3e37c00000 [pid 5102] <... mmap resumed>) = 0x7f3e37c00000 [pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5101] munmap(0x7f3e37c00000, 138412032 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5101] <... munmap resumed>) = 0 [pid 5102] <... write resumed>) = 524288 [pid 5101] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5101] ioctl(4, LOOP_SET_FD, 3 [pid 5104] <... write resumed>) = 524288 [pid 5103] <... write resumed>) = 524288 [pid 5102] munmap(0x7f3e37c00000, 138412032 [pid 5100] close(3 [pid 5104] munmap(0x7f3e37c00000, 138412032 [pid 5101] <... ioctl resumed>) = 0 [pid 5103] munmap(0x7f3e37c00000, 138412032 [pid 5101] close(3) = 0 [pid 5101] close(4 [pid 5100] <... close resumed>) = 0 [pid 5101] <... close resumed>) = 0 [pid 5101] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5100] close(4 [pid 5101] <... mkdir resumed>) = 0 [pid 5104] <... munmap resumed>) = 0 [pid 5103] <... munmap resumed>) = 0 [pid 5102] <... munmap resumed>) = 0 [pid 5100] <... close resumed>) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5103] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5102] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5100] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5103] <... openat resumed>) = 4 [pid 5102] <... openat resumed>) = 4 [ 78.286761][ T5100] loop0: detected capacity change from 0 to 1024 [ 78.318972][ T5101] loop1: detected capacity change from 0 to 1024 [pid 5101] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5100] <... mkdir resumed>) = 0 [pid 5104] <... openat resumed>) = 4 [pid 5103] ioctl(4, LOOP_SET_FD, 3 [pid 5102] ioctl(4, LOOP_SET_FD, 3 [pid 5104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5103] <... ioctl resumed>) = 0 [pid 5100] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5102] <... ioctl resumed>) = 0 [pid 5103] close(3) = 0 [pid 5103] close(4) = 0 [pid 5102] close(3 [pid 5104] close(3 [pid 5103] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5102] <... close resumed>) = 0 [pid 5103] <... mkdir resumed>) = 0 [pid 5101] <... mount resumed>) = 0 [pid 5100] <... mount resumed>) = 0 [pid 5101] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5104] <... close resumed>) = 0 [pid 5103] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5102] close(4 [pid 5101] <... openat resumed>) = 3 [pid 5100] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5102] <... close resumed>) = 0 [pid 5101] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5100] <... openat resumed>) = 3 [pid 5104] close(4 [pid 5102] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5101] <... chdir resumed>) = 0 [pid 5100] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [ 78.345501][ T5103] loop3: detected capacity change from 0 to 1024 [ 78.345926][ T5102] loop2: detected capacity change from 0 to 1024 [ 78.359164][ T5104] loop4: detected capacity change from 0 to 1024 [pid 5101] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5104] <... close resumed>) = 0 [pid 5102] <... mkdir resumed>) = 0 [pid 5101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5100] <... chdir resumed>) = 0 [pid 5104] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5101] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5104] <... mkdir resumed>) = 0 [pid 5100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5100] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5103] <... mount resumed>) = 0 [pid 5102] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5101] <... open resumed>) = 4 [pid 5103] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5101] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5100] <... open resumed>) = 4 [pid 5103] <... openat resumed>) = 3 [pid 5103] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5104] <... mount resumed>) = 0 [pid 5103] <... chdir resumed>) = 0 [pid 5100] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5104] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5103] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] <... creat resumed>) = 5 [pid 5104] <... openat resumed>) = 3 [pid 5103] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5103] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5104] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5100] <... creat resumed>) = 5 [pid 5104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5104] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5101] exit_group(0) = ? [pid 5100] exit_group(0) = ? [pid 5103] <... open resumed>) = 4 [pid 5101] +++ exited with 0 +++ [pid 5100] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5066] getdents64(3, [pid 5065] newfstatat(3, "", [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5104] <... open resumed>) = 4 [pid 5103] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] <... umount2 resumed>) = 0 [pid 5104] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5102] <... mount resumed>) = 0 [pid 5066] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5102] <... openat resumed>) = 3 [pid 5066] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5102] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5102] <... chdir resumed>) = 0 [pid 5103] <... creat resumed>) = 5 [pid 5102] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5102] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5066] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = 0 [pid 5103] exit_group(0 [pid 5066] <... openat resumed>) = 4 [pid 5102] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5103] <... exit_group resumed>) = ? [pid 5066] newfstatat(4, "", [pid 5104] <... creat resumed>) = 5 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... close resumed>) = 0 [pid 5066] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5104] exit_group(0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5104] <... exit_group resumed>) = ? [pid 5066] <... rmdir resumed>) = 0 [pid 5065] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5066] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(4, "", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] getdents64(4, [pid 5066] unlink("./5/binderfs" [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5102] <... open resumed>) = 4 [pid 5103] +++ exited with 0 +++ [pid 5066] <... unlink resumed>) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5066] getdents64(3, [pid 5065] close(4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... close resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5065] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5104] +++ exited with 0 +++ [pid 5102] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] rmdir("./5" [pid 5065] <... rmdir resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5068] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(3, "", [pid 5066] mkdir("./6", 0777 [pid 5065] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(3, [pid 5069] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] newfstatat(3, "", [pid 5068] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] unlink("./5/binderfs" [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... unlink resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3) = 0 [pid 5102] <... creat resumed>) = 5 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] <... umount2 resumed>) = 0 [pid 5065] rmdir("./5" [pid 5069] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] exit_group(0 [pid 5065] <... rmdir resumed>) = 0 [pid 5068] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] <... exit_group resumed>) = ? [pid 5102] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] mkdir("./6", 0777 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5068] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... mkdir resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = 0 [pid 5068] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5067] <... openat resumed>) = 3 [pid 5067] newfstatat(3, "", [pid 5069] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(4, "", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, [pid 5069] <... openat resumed>) = 4 [pid 5068] getdents64(4, [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(4, "", [pid 5068] getdents64(4, [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(4, [pid 5068] close(4 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... close resumed>) = 0 [pid 5069] getdents64(4, [pid 5068] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(4) = 0 [pid 5069] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5069] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] unlink("./5/binderfs") = 0 [pid 5069] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] rmdir("./5" [pid 5068] unlink("./5/binderfs" [pid 5067] <... umount2 resumed>) = 0 [pid 5066] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5069] mkdir("./6", 0777) = 0 [pid 5068] getdents64(3, [pid 5067] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached , child_tidptr=0x55555622a650) = 5106 [pid 5106] set_robust_list(0x55555622a660, 24) = 0 [pid 5106] chdir("./6") = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] close(3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5107 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3) = 0 [pid 5106] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5107 attached ) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(3 [pid 5107] set_robust_list(0x55555622a660, 24 [pid 5068] rmdir("./5" [pid 5107] <... set_robust_list resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5106] sync( [pid 5107] chdir("./6" [pid 5068] <... rmdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] <... chdir resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] newfstatat(4, "", [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5108 [pid 5107] <... prctl resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5108 attached [pid 5107] setpgid(0, 0 [pid 5068] mkdir("./6", 0777 [pid 5067] getdents64(4, [pid 5107] <... setpgid resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] set_robust_list(0x55555622a660, 24) = 0 [pid 5107] <... openat resumed>) = 3 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5107] write(3, "1000", 4 [pid 5108] chdir("./6" [pid 5106] <... sync resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] getdents64(4, [pid 5108] <... chdir resumed>) = 0 [pid 5107] <... write resumed>) = 4 [pid 5106] memfd_create("syzkaller", 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] close(3 [pid 5108] <... prctl resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5108] setpgid(0, 0 [pid 5106] <... memfd_create resumed>) = 3 [pid 5107] symlink("/dev/binderfs", "./binderfs" [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] close(4) = 0 [pid 5108] <... setpgid resumed>) = 0 [pid 5107] <... symlink resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5108] <... openat resumed>) = 3 [pid 5107] sync( [pid 5106] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... rmdir resumed>) = 0 [pid 5108] write(3, "1000", 4 [pid 5107] <... sync resumed>) = 0 [pid 5106] <... write resumed>) = 524288 [pid 5067] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5108] <... write resumed>) = 4 [pid 5107] memfd_create("syzkaller", 0 [pid 5106] munmap(0x7f3e37c00000, 138412032 [pid 5108] close(3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5108] <... close resumed>) = 0 [pid 5107] <... memfd_create resumed>) = 3 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5106] <... munmap resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5108] sync( [pid 5107] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5106] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5106] ioctl(4, LOOP_SET_FD, 3 [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] unlink("./5/binderfs" [pid 5106] <... ioctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5106] close(3) = 0 [pid 5106] close(4 [pid 5108] <... sync resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5067] getdents64(3, [pid 5108] memfd_create("syzkaller", 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5106] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] close(3 [pid 5108] <... memfd_create resumed>) = 3 [pid 5067] <... close resumed>) = 0 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] close(3 [pid 5067] rmdir("./5" [pid 5108] <... mmap resumed>) = 0x7f3e37c00000 [pid 5106] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5106] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] mkdir("./6", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5109 attached [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5107] <... write resumed>) = 524288 [pid 5106] <... mount resumed>) = 0 [pid 5109] set_robust_list(0x55555622a660, 24 [pid 5107] munmap(0x7f3e37c00000, 138412032 [pid 5106] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5109 [pid 5067] <... openat resumed>) = 3 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5106] <... openat resumed>) = 3 [pid 5109] chdir("./6" [pid 5107] <... munmap resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5106] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5109] <... chdir resumed>) = 0 [pid 5107] <... openat resumed>) = 4 [pid 5106] <... chdir resumed>) = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5109] <... prctl resumed>) = 0 [pid 5107] ioctl(4, LOOP_SET_FD, 3 [pid 5106] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 78.708755][ T5106] loop4: detected capacity change from 0 to 1024 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 0 [pid 5109] symlink("/dev/binderfs", "./binderfs" [pid 5106] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5109] <... symlink resumed>) = 0 [pid 5108] <... write resumed>) = 524288 [pid 5109] sync( [pid 5107] <... ioctl resumed>) = 0 [pid 5108] munmap(0x7f3e37c00000, 138412032 [pid 5106] <... open resumed>) = 4 [pid 5106] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5107] close(3 [pid 5108] <... munmap resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5107] close(4 [pid 5106] <... creat resumed>) = 5 [pid 5109] <... sync resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5106] exit_group(0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5106] <... exit_group resumed>) = ? [pid 5108] <... openat resumed>) = 4 [pid 5107] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5108] ioctl(4, LOOP_SET_FD, 3 [pid 5107] <... mkdir resumed>) = 0 [pid 5106] +++ exited with 0 +++ [ 78.765690][ T5107] loop1: detected capacity change from 0 to 1024 [pid 5109] memfd_create("syzkaller", 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5109] <... memfd_create resumed>) = 3 [pid 5108] <... ioctl resumed>) = 0 [pid 5107] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... ioctl resumed>) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] close(3 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5108] <... close resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5109] <... mmap resumed>) = 0x7f3e37c00000 [pid 5108] close(4 [pid 5069] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5108] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5108] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5108] <... mkdir resumed>) = 0 [pid 5069] newfstatat(3, "", [pid 5107] <... mount resumed>) = 0 [pid 5107] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5108] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5107] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] close(3 [pid 5107] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... close resumed>) = 0 [pid 5107] <... chdir resumed>) = 0 [pid 5069] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5107] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5110 attached [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5110 [pid 5110] set_robust_list(0x55555622a660, 24) = 0 [ 78.810946][ T5108] loop0: detected capacity change from 0 to 1024 [pid 5110] chdir("./6") = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] <... open resumed>) = 4 [pid 5110] <... openat resumed>) = 3 [pid 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5107] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5109] <... write resumed>) = 524288 [pid 5108] <... mount resumed>) = 0 [pid 5109] munmap(0x7f3e37c00000, 138412032 [pid 5108] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... umount2 resumed>) = 0 [pid 5109] <... munmap resumed>) = 0 [pid 5110] symlink("/dev/binderfs", "./binderfs" [pid 5109] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5108] <... openat resumed>) = 3 [pid 5110] <... symlink resumed>) = 0 [pid 5109] <... openat resumed>) = 4 [pid 5108] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5110] sync( [pid 5109] ioctl(4, LOOP_SET_FD, 3 [pid 5108] <... chdir resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5107] <... creat resumed>) = 5 [pid 5069] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5108] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5108] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5107] exit_group(0 [pid 5069] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5109] <... ioctl resumed>) = 0 [pid 5107] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, [pid 5107] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5109] close(3 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5109] <... close resumed>) = 0 [pid 5069] close(4 [pid 5109] close(4 [pid 5069] <... close resumed>) = 0 [pid 5066] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5109] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5109] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] <... openat resumed>) = 3 [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5109] <... mkdir resumed>) = 0 [pid 5066] getdents64(3, [pid 5069] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] unlink("./6/binderfs") = 0 [pid 5069] getdents64(3, [pid 5109] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5108] <... open resumed>) = 4 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./6") = 0 [pid 5108] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] <... umount2 resumed>) = 0 [pid 5069] mkdir("./7", 0777) = 0 [ 78.894878][ T5109] loop3: detected capacity change from 0 to 1024 [pid 5066] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] <... sync resumed>) = 0 [pid 5109] <... mount resumed>) = 0 [pid 5108] <... creat resumed>) = 5 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] memfd_create("syzkaller", 0 [pid 5109] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5108] exit_group(0 [pid 5069] <... openat resumed>) = 3 [pid 5109] <... openat resumed>) = 3 [pid 5108] <... exit_group resumed>) = ? [pid 5066] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5110] <... memfd_create resumed>) = 3 [pid 5109] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5108] +++ exited with 0 +++ [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5109] <... chdir resumed>) = 0 [pid 5066] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5110] <... mmap resumed>) = 0x7f3e37c00000 [pid 5109] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5109] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, [pid 5065] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] getdents64(4, [pid 5065] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5109] <... open resumed>) = 4 [pid 5065] <... openat resumed>) = 3 [pid 5066] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5110] <... write resumed>) = 524288 [pid 5110] munmap(0x7f3e37c00000, 138412032 [pid 5109] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] newfstatat(3, "", [pid 5110] <... munmap resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5065] getdents64(3, [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5110] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] unlink("./6/binderfs" [pid 5065] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] <... openat resumed>) = 4 [pid 5110] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... unlink resumed>) = 0 [pid 5109] <... creat resumed>) = 5 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5066] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] rmdir("./6") = 0 ./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x55555622a660, 24) = 0 [pid 5111] chdir("./7" [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5111 [pid 5066] mkdir("./7", 0777 [pid 5111] <... chdir resumed>) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5111] setpgid(0, 0) = 0 [pid 5110] <... ioctl resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] exit_group(0 [pid 5111] <... openat resumed>) = 3 [pid 5109] <... exit_group resumed>) = ? [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5111] write(3, "1000", 4) = 4 [pid 5109] +++ exited with 0 +++ [pid 5111] close(3 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5111] <... close resumed>) = 0 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5111] symlink("/dev/binderfs", "./binderfs" [pid 5065] <... umount2 resumed>) = 0 [pid 5111] <... symlink resumed>) = 0 [pid 5110] close(3 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5065] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] close(4 [pid 5065] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5111] sync( [pid 5068] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5110] <... close resumed>) = 0 [pid 5068] newfstatat(3, "", [pid 5065] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5065] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... openat resumed>) = 4 [pid 5110] <... mkdir resumed>) = 0 [pid 5065] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5110] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5065] getdents64(4, [pid 5068] <... umount2 resumed>) = 0 [pid 5111] <... sync resumed>) = 0 [pid 5110] <... mount resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5111] memfd_create("syzkaller", 0 [pid 5110] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5068] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(4 [pid 5110] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5111] <... memfd_create resumed>) = 3 [pid 5110] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5110] <... chdir resumed>) = 0 [pid 5068] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... rmdir resumed>) = 0 [pid 5111] <... mmap resumed>) = 0x7f3e37c00000 [ 79.028039][ T5110] loop2: detected capacity change from 0 to 1024 [pid 5110] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5110] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] <... openat resumed>) = 4 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(4, [pid 5065] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] getdents64(4, [pid 5110] <... open resumed>) = 4 [pid 5065] unlink("./6/binderfs" [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5110] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] close(4 [pid 5065] getdents64(3, [pid 5111] <... write resumed>) = 524288 [pid 5068] <... close resumed>) = 0 [pid 5066] close(3 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... close resumed>) = 0 [pid 5065] close(3 [pid 5110] <... creat resumed>) = 5 [pid 5068] <... rmdir resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... close resumed>) = 0 ./strace-static-x86_64: Process 5112 attached [pid 5110] exit_group(0 [pid 5068] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] rmdir("./6" [pid 5112] set_robust_list(0x55555622a660, 24 [pid 5111] munmap(0x7f3e37c00000, 138412032 [pid 5110] <... exit_group resumed>) = ? [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5112 [pid 5111] <... munmap resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5110] +++ exited with 0 +++ [pid 5112] <... set_robust_list resumed>) = 0 [pid 5065] mkdir("./7", 0777 [pid 5112] chdir("./7" [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... mkdir resumed>) = 0 [pid 5112] <... chdir resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... restart_syscall resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] <... openat resumed>) = 4 [pid 5068] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5112] <... prctl resumed>) = 0 [pid 5111] ioctl(4, LOOP_SET_FD, 3 [pid 5065] <... openat resumed>) = 3 [pid 5067] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5111] <... ioctl resumed>) = 0 [pid 5068] unlink("./6/binderfs" [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5111] close(3 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] <... close resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5112] <... openat resumed>) = 3 [pid 5111] close(4 [pid 5068] getdents64(3, [pid 5112] write(3, "1000", 4 [pid 5111] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5111] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] close(3 [pid 5111] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./6") = 0 [pid 5111] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5112] <... write resumed>) = 4 [pid 5068] mkdir("./7", 0777 [pid 5112] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5112] <... close resumed>) = 0 [pid 5067] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] sync( [pid 5111] <... mount resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5111] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5065] close(3 [pid 5111] <... openat resumed>) = 3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5111] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... close resumed>) = 0 [pid 5111] <... chdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 79.147480][ T5111] loop4: detected capacity change from 0 to 1024 [pid 5067] getdents64(4, [pid 5111] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5068] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5113 attached [pid 5113] set_robust_list(0x55555622a660, 24) = 0 [pid 5111] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5113] chdir("./7" [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5113 [pid 5068] close(3) = 0 [pid 5113] <... chdir resumed>) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached [pid 5113] <... prctl resumed>) = 0 [pid 5111] <... open resumed>) = 4 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5114] set_robust_list(0x55555622a660, 24 [pid 5113] setpgid(0, 0 [pid 5111] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] <... setpgid resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5114 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] chdir("./7" [pid 5113] write(3, "1000", 4) = 4 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5113] close(3) = 0 [pid 5113] symlink("/dev/binderfs", "./binderfs" [pid 5114] <... chdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5113] <... symlink resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] <... sync resumed>) = 0 [pid 5067] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] <... prctl resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5112] memfd_create("syzkaller", 0 [pid 5067] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5114] setpgid(0, 0 [pid 5113] sync( [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5114] <... setpgid resumed>) = 0 [pid 5067] unlink("./6/binderfs" [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... unlink resumed>) = 0 [pid 5067] getdents64(3, [pid 5114] <... openat resumed>) = 3 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5114] write(3, "1000", 4 [pid 5067] close(3 [pid 5114] <... write resumed>) = 4 [pid 5112] <... memfd_create resumed>) = 3 [pid 5067] <... close resumed>) = 0 [pid 5114] close(3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5111] <... creat resumed>) = 5 [pid 5114] <... close resumed>) = 0 [pid 5112] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] rmdir("./6" [pid 5114] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... rmdir resumed>) = 0 [pid 5067] mkdir("./7", 0777 [pid 5111] exit_group(0 [pid 5114] <... symlink resumed>) = 0 [pid 5114] sync( [pid 5111] <... exit_group resumed>) = ? [pid 5067] <... mkdir resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5111] +++ exited with 0 +++ [pid 5114] <... sync resumed>) = 0 [pid 5113] <... sync resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5114] memfd_create("syzkaller", 0 [pid 5113] memfd_create("syzkaller", 0 [pid 5114] <... memfd_create resumed>) = 3 [pid 5069] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5113] <... memfd_create resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5114] <... mmap resumed>) = 0x7f3e37c00000 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... openat resumed>) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5113] <... mmap resumed>) = 0x7f3e37c00000 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] <... write resumed>) = 524288 [pid 5112] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5112] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] newfstatat(4, "", [pid 5067] <... ioctl resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5067] close(3 [pid 5114] <... write resumed>) = 524288 [pid 5113] <... write resumed>) = 524288 [pid 5112] <... ioctl resumed>) = 0 [pid 5069] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... close resumed>) = 0 [pid 5114] munmap(0x7f3e37c00000, 138412032 [pid 5112] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5114] <... munmap resumed>) = 0 [pid 5113] munmap(0x7f3e37c00000, 138412032 [pid 5112] <... close resumed>) = 0 [pid 5113] <... munmap resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 79.313940][ T5112] loop1: detected capacity change from 0 to 1024 [pid 5113] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5115 attached [pid 5114] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5112] close(4 [pid 5069] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5115] set_robust_list(0x55555622a660, 24 [pid 5114] <... openat resumed>) = 4 [pid 5113] <... ioctl resumed>) = 0 [pid 5112] <... close resumed>) = 0 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5112] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5115] chdir("./7" [pid 5113] close(3 [pid 5115] <... chdir resumed>) = 0 [pid 5113] <... close resumed>) = 0 [pid 5112] <... mkdir resumed>) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] close(4 [pid 5115] <... prctl resumed>) = 0 [pid 5113] <... close resumed>) = 0 [pid 5115] setpgid(0, 0 [pid 5113] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] unlink("./7/binderfs") = 0 [pid 5113] <... mkdir resumed>) = 0 [pid 5113] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5112] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5114] ioctl(4, LOOP_SET_FD, 3 [pid 5069] getdents64(3, [pid 5115] <... setpgid resumed>) = 0 [pid 5112] <... mount resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5115 [pid 5112] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] close(3 [pid 5112] <... openat resumed>) = 3 [pid 5112] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5069] <... close resumed>) = 0 [pid 5113] <... mount resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] rmdir("./7" [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5112] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... rmdir resumed>) = 0 [pid 5069] mkdir("./8", 0777 [pid 5113] <... openat resumed>) = 3 [pid 5112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... mkdir resumed>) = 0 [pid 5115] <... openat resumed>) = 3 [pid 5115] write(3, "1000", 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5115] <... write resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5115] close(3 [pid 5113] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5115] <... close resumed>) = 0 [pid 5113] <... chdir resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5113] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5115] sync( [pid 5114] <... ioctl resumed>) = 0 [pid 5114] close(3) = 0 [pid 5114] close(4) = 0 [pid 5114] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5112] <... open resumed>) = 4 [pid 5114] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5113] <... open resumed>) = 4 [ 79.370621][ T5113] loop0: detected capacity change from 0 to 1024 [ 79.392793][ T5114] loop3: detected capacity change from 0 to 1024 [pid 5112] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5113] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5112] <... creat resumed>) = 5 [pid 5113] <... creat resumed>) = 5 [pid 5112] exit_group(0 [pid 5069] <... ioctl resumed>) = 0 [pid 5113] exit_group(0) = ? [pid 5112] <... exit_group resumed>) = ? [pid 5114] <... mount resumed>) = 0 [pid 5114] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5114] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5113] +++ exited with 0 +++ [pid 5112] +++ exited with 0 +++ [pid 5069] close(3 [pid 5114] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5114] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... close resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5114] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5066] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... restart_syscall resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] newfstatat(3, "", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] getdents64(3, ./strace-static-x86_64: Process 5116 attached [pid 5114] <... open resumed>) = 4 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... openat resumed>) = 3 [pid 5116] set_robust_list(0x55555622a660, 24 [pid 5066] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5116] <... set_robust_list resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5116 [pid 5116] chdir("./8" [pid 5065] newfstatat(3, "", [pid 5116] <... chdir resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5116] <... prctl resumed>) = 0 [pid 5065] getdents64(3, [pid 5116] setpgid(0, 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5115] <... sync resumed>) = 0 [pid 5065] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5116] <... setpgid resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... umount2 resumed>) = 0 [pid 5116] <... openat resumed>) = 3 [pid 5115] memfd_create("syzkaller", 0) = 3 [pid 5116] write(3, "1000", 4 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5116] <... write resumed>) = 4 [pid 5116] close(3) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5115] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... umount2 resumed>) = 0 [pid 5116] sync( [pid 5114] <... creat resumed>) = 5 [pid 5066] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5114] exit_group(0 [pid 5066] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] <... exit_group resumed>) = ? [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] +++ exited with 0 +++ [pid 5066] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5066] <... openat resumed>) = 4 [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5116] <... sync resumed>) = 0 [pid 5066] getdents64(4, [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5116] memfd_create("syzkaller", 0 [pid 5068] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] getdents64(4, [pid 5068] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... openat resumed>) = 3 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(3, "", [pid 5066] close(4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... close resumed>) = 0 [pid 5065] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(3, [pid 5066] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... openat resumed>) = 4 [pid 5116] <... memfd_create resumed>) = 3 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5115] <... write resumed>) = 524288 [pid 5068] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... rmdir resumed>) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5115] munmap(0x7f3e37c00000, 138412032 [pid 5065] getdents64(4, [pid 5116] <... write resumed>) = 524288 [pid 5066] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] close(4 [pid 5115] <... munmap resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] unlink("./7/binderfs" [pid 5065] <... rmdir resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5065] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] getdents64(3, [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5115] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5116] munmap(0x7f3e37c00000, 138412032 [pid 5115] <... openat resumed>) = 4 [pid 5065] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5116] <... munmap resumed>) = 0 [pid 5115] ioctl(4, LOOP_SET_FD, 3 [pid 5066] close(3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... umount2 resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5065] unlink("./7/binderfs" [pid 5115] <... ioctl resumed>) = 0 [pid 5066] rmdir("./7" [pid 5116] <... openat resumed>) = 4 [pid 5065] <... unlink resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] getdents64(3, [pid 5066] mkdir("./8", 0777 [pid 5116] ioctl(4, LOOP_SET_FD, 3 [pid 5115] close(3 [pid 5068] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... mkdir resumed>) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5115] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] close(3 [pid 5115] close(4) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5115] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5065] rmdir("./7" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5115] <... mkdir resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5065] mkdir("./8", 0777 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, [pid 5065] <... mkdir resumed>) = 0 [pid 5115] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] getdents64(4, [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5068] close(4) = 0 [pid 5068] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5068] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] unlink("./7/binderfs" [pid 5116] <... ioctl resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5116] close(3 [pid 5068] getdents64(3, [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5116] <... close resumed>) = 0 [pid 5068] close(3) = 0 [pid 5116] close(4 [pid 5068] rmdir("./7" [pid 5116] <... close resumed>) = 0 [pid 5115] <... mount resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5115] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5116] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5115] <... openat resumed>) = 3 [pid 5115] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5116] <... mkdir resumed>) = 0 [pid 5115] <... chdir resumed>) = 0 [pid 5068] mkdir("./8", 0777 [pid 5115] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5068] <... mkdir resumed>) = 0 [pid 5115] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5116] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 79.578787][ T5115] loop2: detected capacity change from 0 to 1024 [ 79.598988][ T5116] loop4: detected capacity change from 0 to 1024 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5116] <... mount resumed>) = 0 [pid 5115] <... open resumed>) = 4 [pid 5115] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5116] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5115] <... creat resumed>) = 5 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5116] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5116] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] close(3 [pid 5065] close(3 [pid 5115] exit_group(0) = ? [pid 5066] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5116] <... open resumed>) = 4 [pid 5115] +++ exited with 0 +++ [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3./strace-static-x86_64: Process 5118 attached ./strace-static-x86_64: Process 5117 attached [pid 5116] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5117 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5118] set_robust_list(0x55555622a660, 24 [pid 5117] set_robust_list(0x55555622a660, 24 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5118 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5117] <... set_robust_list resumed>) = 0 [pid 5116] <... creat resumed>) = 5 [pid 5068] <... close resumed>) = 0 [pid 5118] chdir("./8" [pid 5117] chdir("./8" [pid 5067] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5117] <... chdir resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5118] <... chdir resumed>) = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5119 attached [pid 5117] <... prctl resumed>) = 0 [pid 5116] exit_group(0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] newfstatat(3, "", [pid 5118] <... prctl resumed>) = 0 [pid 5117] setpgid(0, 0 [pid 5116] <... exit_group resumed>) = ? [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5119] set_robust_list(0x55555622a660, 24 [pid 5118] setpgid(0, 0 [pid 5117] <... setpgid resumed>) = 0 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5119] chdir("./8" [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5119 [pid 5119] <... chdir resumed>) = 0 [pid 5117] <... openat resumed>) = 3 [pid 5116] +++ exited with 0 +++ [pid 5118] <... setpgid resumed>) = 0 [pid 5067] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5117] write(3, "1000", 4 [pid 5069] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] <... write resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] close(3 [pid 5119] <... prctl resumed>) = 0 [pid 5117] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] setpgid(0, 0 [pid 5118] <... openat resumed>) = 3 [pid 5117] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... openat resumed>) = 3 [pid 5067] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] <... setpgid resumed>) = 0 [pid 5117] <... symlink resumed>) = 0 [pid 5069] newfstatat(3, "", [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] write(3, "1000", 4 [pid 5119] <... openat resumed>) = 3 [pid 5118] <... write resumed>) = 4 [pid 5117] sync( [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5118] close(3 [pid 5069] getdents64(3, [pid 5119] write(3, "1000", 4 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5119] <... write resumed>) = 4 [pid 5069] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] close(3 [pid 5118] <... close resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 5118] symlink("/dev/binderfs", "./binderfs" [pid 5119] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5118] <... symlink resumed>) = 0 [pid 5119] sync( [pid 5118] sync( [pid 5067] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5067] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] <... sync resumed>) = 0 [pid 5118] <... sync resumed>) = 0 [pid 5117] <... sync resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5119] memfd_create("syzkaller", 0 [pid 5118] memfd_create("syzkaller", 0 [pid 5117] memfd_create("syzkaller", 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] <... memfd_create resumed>) = 3 [pid 5118] <... memfd_create resumed>) = 3 [pid 5117] <... memfd_create resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... openat resumed>) = 4 [pid 5119] <... mmap resumed>) = 0x7f3e37c00000 [pid 5118] <... mmap resumed>) = 0x7f3e37c00000 [pid 5117] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] newfstatat(4, "", [pid 5067] <... openat resumed>) = 4 [pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] newfstatat(4, "", [pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5069] <... rmdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... rmdir resumed>) = 0 [pid 5067] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5067] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5118] <... write resumed>) = 524288 [pid 5117] <... write resumed>) = 524288 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./7/binderfs" [pid 5118] munmap(0x7f3e37c00000, 138412032 [pid 5069] unlink("./8/binderfs") = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5117] munmap(0x7f3e37c00000, 138412032 [pid 5119] <... write resumed>) = 524288 [pid 5117] <... munmap resumed>) = 0 [pid 5069] getdents64(3, [pid 5067] getdents64(3, [pid 5118] <... munmap resumed>) = 0 [pid 5119] munmap(0x7f3e37c00000, 138412032 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3 [pid 5118] <... openat resumed>) = 4 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] <... close resumed>) = 0 [pid 5119] <... munmap resumed>) = 0 [pid 5118] ioctl(4, LOOP_SET_FD, 3 [pid 5117] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5067] rmdir("./7" [pid 5119] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5118] <... ioctl resumed>) = 0 [pid 5117] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = 4 [pid 5118] close(3 [pid 5117] <... ioctl resumed>) = 0 [pid 5069] rmdir("./8" [pid 5067] <... rmdir resumed>) = 0 [pid 5119] ioctl(4, LOOP_SET_FD, 3 [pid 5118] <... close resumed>) = 0 [pid 5118] close(4) = 0 [pid 5118] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... rmdir resumed>) = 0 [pid 5119] <... ioctl resumed>) = 0 [pid 5118] <... mkdir resumed>) = 0 [pid 5117] close(3 [pid 5067] mkdir("./8", 0777 [pid 5117] <... close resumed>) = 0 [pid 5117] close(4) = 0 [pid 5117] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5118] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5117] <... mkdir resumed>) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5119] close(3 [pid 5069] mkdir("./9", 0777 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5119] <... close resumed>) = 0 [pid 5117] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... mkdir resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5119] close(4) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5119] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5118] <... mount resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5118] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5119] <... mkdir resumed>) = 0 [pid 5119] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5118] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 79.840573][ T5118] loop0: detected capacity change from 0 to 1024 [ 79.848952][ T5117] loop1: detected capacity change from 0 to 1024 [ 79.857713][ T5119] loop3: detected capacity change from 0 to 1024 [pid 5118] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5117] <... mount resumed>) = 0 [pid 5117] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] <... open resumed>) = 4 [pid 5117] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5118] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5117] <... chdir resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5117] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5119] <... mount resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5118] <... creat resumed>) = 5 [pid 5117] <... open resumed>) = 4 [pid 5119] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] exit_group(0 [pid 5117] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5119] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5118] <... exit_group resumed>) = ? [pid 5119] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5118] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", [pid 5069] close(3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... ioctl resumed>) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5120 attached [pid 5119] <... open resumed>) = 4 [pid 5117] <... creat resumed>) = 5 [pid 5120] set_robust_list(0x55555622a660, 24 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5120 [pid 5065] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5117] exit_group(0 [pid 5120] chdir("./9") = 0 [pid 5117] <... exit_group resumed>) = ? [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs" [pid 5066] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] <... creat resumed>) = 5 [pid 5066] <... openat resumed>) = 3 [pid 5120] <... symlink resumed>) = 0 [pid 5119] exit_group(0 [pid 5067] close(3 [pid 5066] newfstatat(3, "", [pid 5119] <... exit_group resumed>) = ? [pid 5067] <... close resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5120] sync( [pid 5119] +++ exited with 0 +++ [pid 5066] getdents64(3, [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5121 attached [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5121 [pid 5065] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] set_robust_list(0x55555622a660, 24 [pid 5068] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] newfstatat(3, "", [pid 5121] <... set_robust_list resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5121] chdir("./8") = 0 [pid 5068] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5121] setpgid(0, 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5065] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5121] <... setpgid resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] <... openat resumed>) = 4 [pid 5066] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(4, "", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] getdents64(4, [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5121] <... openat resumed>) = 3 [pid 5066] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5120] <... sync resumed>) = 0 [pid 5066] <... openat resumed>) = 4 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5121] write(3, "1000", 4) = 4 [pid 5120] memfd_create("syzkaller", 0 [pid 5066] newfstatat(4, "", [pid 5065] getdents64(4, [pid 5121] close(3 [pid 5120] <... memfd_create resumed>) = 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] getdents64(4, [pid 5065] close(4 [pid 5121] <... close resumed>) = 0 [pid 5120] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... close resumed>) = 0 [pid 5121] symlink("/dev/binderfs", "./binderfs" [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5066] getdents64(4, [pid 5121] <... symlink resumed>) = 0 [pid 5065] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5121] sync( [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5066] close(4 [pid 5065] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5068] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] unlink("./8/binderfs" [pid 5121] <... sync resumed>) = 0 [pid 5066] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... unlink resumed>) = 0 [pid 5065] getdents64(3, [pid 5121] memfd_create("syzkaller", 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5121] <... memfd_create resumed>) = 3 [pid 5068] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] unlink("./8/binderfs" [pid 5065] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] rmdir("./8" [pid 5066] <... unlink resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, [pid 5065] <... rmdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] mkdir("./9", 0777 [pid 5066] close(3 [pid 5068] getdents64(4, [pid 5066] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] rmdir("./8" [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] unlink("./8/binderfs") = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] mkdir("./9", 0777 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./8" [pid 5121] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] <... rmdir resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5068] mkdir("./9", 0777) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5120] <... write resumed>) = 524288 [pid 5066] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5120] munmap(0x7f3e37c00000, 138412032 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] <... openat resumed>) = 3 [pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5120] <... munmap resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5120] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3 [pid 5121] <... write resumed>) = 524288 [pid 5120] <... ioctl resumed>) = 0 [pid 5121] munmap(0x7f3e37c00000, 138412032 [pid 5120] close(3) = 0 [pid 5120] close(4) = 0 [pid 5120] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5120] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5121] <... munmap resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [ 80.109455][ T5120] loop4: detected capacity change from 0 to 1024 [pid 5121] <... openat resumed>) = 4 [pid 5065] close(3 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5122 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5121] ioctl(4, LOOP_SET_FD, 3 [pid 5120] <... mount resumed>) = 0 [pid 5120] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5120] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5124 [pid 5120] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5120] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5123 ./strace-static-x86_64: Process 5123 attached ./strace-static-x86_64: Process 5122 attached [pid 5123] set_robust_list(0x55555622a660, 24 [pid 5122] set_robust_list(0x55555622a660, 24./strace-static-x86_64: Process 5124 attached [pid 5123] <... set_robust_list resumed>) = 0 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5124] set_robust_list(0x55555622a660, 24 [pid 5120] <... open resumed>) = 4 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5122] chdir("./9" [pid 5124] chdir("./9" [pid 5123] chdir("./9" [pid 5122] <... chdir resumed>) = 0 [pid 5123] <... chdir resumed>) = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] <... prctl resumed>) = 0 [pid 5121] <... ioctl resumed>) = 0 [pid 5124] <... chdir resumed>) = 0 [pid 5123] <... prctl resumed>) = 0 [pid 5122] setpgid(0, 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] setpgid(0, 0 [pid 5122] <... setpgid resumed>) = 0 [pid 5121] close(3 [pid 5124] <... prctl resumed>) = 0 [pid 5123] <... setpgid resumed>) = 0 [pid 5124] setpgid(0, 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] <... close resumed>) = 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5122] <... openat resumed>) = 3 [pid 5121] close(4 [pid 5120] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] <... openat resumed>) = 3 [pid 5124] <... openat resumed>) = 3 [pid 5122] write(3, "1000", 4 [pid 5121] <... close resumed>) = 0 [pid 5124] write(3, "1000", 4 [pid 5123] write(3, "1000", 4 [pid 5122] <... write resumed>) = 4 [pid 5121] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5124] <... write resumed>) = 4 [pid 5123] <... write resumed>) = 4 [pid 5122] close(3 [pid 5121] <... mkdir resumed>) = 0 [pid 5124] close(3 [pid 5123] close(3 [pid 5122] <... close resumed>) = 0 [pid 5121] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5124] <... close resumed>) = 0 [pid 5122] symlink("/dev/binderfs", "./binderfs" [pid 5120] <... creat resumed>) = 5 [pid 5124] symlink("/dev/binderfs", "./binderfs" [pid 5123] <... close resumed>) = 0 [pid 5122] <... symlink resumed>) = 0 [pid 5120] exit_group(0 [pid 5123] symlink("/dev/binderfs", "./binderfs" [pid 5122] sync( [pid 5124] <... symlink resumed>) = 0 [pid 5123] <... symlink resumed>) = 0 [pid 5120] <... exit_group resumed>) = ? [pid 5124] sync( [ 80.174796][ T5121] loop2: detected capacity change from 0 to 1024 [pid 5123] sync( [pid 5121] <... mount resumed>) = 0 [pid 5121] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5121] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5120] +++ exited with 0 +++ [pid 5121] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5121] <... open resumed>) = 4 [pid 5069] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5124] <... sync resumed>) = 0 [pid 5123] <... sync resumed>) = 0 [pid 5122] <... sync resumed>) = 0 [pid 5121] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] getdents64(3, [pid 5123] memfd_create("syzkaller", 0 [pid 5122] memfd_create("syzkaller", 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5123] <... memfd_create resumed>) = 3 [pid 5122] <... memfd_create resumed>) = 3 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] memfd_create("syzkaller", 0 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] <... creat resumed>) = 5 [pid 5069] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] <... memfd_create resumed>) = 3 [pid 5123] <... mmap resumed>) = 0x7f3e37c00000 [pid 5122] <... mmap resumed>) = 0x7f3e37c00000 [pid 5121] exit_group(0 [pid 5069] <... umount2 resumed>) = 0 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] <... exit_group resumed>) = ? [pid 5124] <... mmap resumed>) = 0x7f3e37c00000 [pid 5121] +++ exited with 0 +++ [pid 5069] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5067] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... openat resumed>) = 3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5122] <... write resumed>) = 524288 [pid 5069] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... umount2 resumed>) = 0 [pid 5122] munmap(0x7f3e37c00000, 138412032 [pid 5069] <... openat resumed>) = 4 [pid 5067] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(4, "", [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, [pid 5067] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5124] <... write resumed>) = 524288 [pid 5123] <... write resumed>) = 524288 [pid 5122] <... munmap resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5124] munmap(0x7f3e37c00000, 138412032 [pid 5123] munmap(0x7f3e37c00000, 138412032 [pid 5122] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] close(4 [pid 5067] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5123] <... munmap resumed>) = 0 [pid 5122] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5124] <... munmap resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3 [pid 5069] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] getdents64(4, [pid 5123] <... openat resumed>) = 4 [pid 5069] <... rmdir resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5123] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5122] <... ioctl resumed>) = 0 [pid 5069] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] <... openat resumed>) = 4 [pid 5123] <... ioctl resumed>) = 0 [pid 5122] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] close(4 [pid 5124] ioctl(4, LOOP_SET_FD, 3 [pid 5123] close(3 [pid 5122] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5123] <... close resumed>) = 0 [pid 5067] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5123] close(4 [pid 5067] <... rmdir resumed>) = 0 [pid 5123] <... close resumed>) = 0 [pid 5067] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] close(4 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5123] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5124] <... ioctl resumed>) = 0 [pid 5123] <... mkdir resumed>) = 0 [pid 5122] <... close resumed>) = 0 [pid 5067] unlink("./8/binderfs" [pid 5122] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... unlink resumed>) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./8" [pid 5122] <... mkdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5124] close(3 [pid 5122] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] mkdir("./9", 0777 [pid 5124] <... close resumed>) = 0 [pid 5123] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... mkdir resumed>) = 0 [pid 5124] close(4 [pid 5069] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5124] <... close resumed>) = 0 [pid 5069] unlink("./9/binderfs" [pid 5067] <... openat resumed>) = 3 [pid 5124] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... unlink resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5124] <... mkdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5123] <... mount resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5123] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5124] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5123] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5123] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... close resumed>) = 0 [pid 5123] <... chdir resumed>) = 0 [pid 5069] rmdir("./9" [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... rmdir resumed>) = 0 [pid 5123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 80.344271][ T5122] loop3: detected capacity change from 0 to 1024 [ 80.345358][ T5123] loop0: detected capacity change from 0 to 1024 [ 80.361165][ T5124] loop1: detected capacity change from 0 to 1024 [pid 5123] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5124] <... mount resumed>) = 0 [pid 5122] <... mount resumed>) = 0 [pid 5069] mkdir("./10", 0777 [pid 5124] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5122] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... mkdir resumed>) = 0 [pid 5124] <... openat resumed>) = 3 [pid 5122] <... openat resumed>) = 3 [pid 5122] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5122] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5124] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... openat resumed>) = 3 [pid 5124] <... chdir resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5123] <... open resumed>) = 4 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5123] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5124] <... open resumed>) = 4 [pid 5124] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] <... ioctl resumed>) = 0 [pid 5122] <... open resumed>) = 4 [pid 5123] <... creat resumed>) = 5 [pid 5122] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5123] exit_group(0) = ? [pid 5124] <... creat resumed>) = 5 [pid 5067] close(3 [pid 5123] +++ exited with 0 +++ [pid 5067] <... close resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... restart_syscall resumed>) = 0 [pid 5124] exit_group(0 [pid 5065] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] <... exit_group resumed>) = ? [pid 5122] <... creat resumed>) = 5 ./strace-static-x86_64: Process 5125 attached [pid 5125] set_robust_list(0x55555622a660, 24) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5125 [pid 5125] chdir("./9") = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5124] +++ exited with 0 +++ [pid 5122] exit_group(0 [pid 5065] <... umount2 resumed>) = 0 [pid 5125] <... prctl resumed>) = 0 [pid 5122] <... exit_group resumed>) = ? [pid 5125] setpgid(0, 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5125] <... setpgid resumed>) = 0 [pid 5122] +++ exited with 0 +++ [pid 5069] <... ioctl resumed>) = 0 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5065] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5066] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 3 [pid 5065] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] newfstatat(3, "", [pid 5125] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5125] write(3, "1000", 4 [pid 5068] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] getdents64(3, [pid 5065] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5125] <... write resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5125] close(3 [pid 5068] newfstatat(3, "", [pid 5066] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5125] <... close resumed>) = 0 [pid 5069] close(3 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5125] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... close resumed>) = 0 [pid 5068] getdents64(3, [pid 5065] newfstatat(4, "", [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5125] <... symlink resumed>) = 0 [pid 5068] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, [pid 5066] <... umount2 resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5126 attached [pid 5125] sync( [pid 5065] close(4 [pid 5126] set_robust_list(0x55555622a660, 24 [pid 5065] <... close resumed>) = 0 [pid 5126] <... set_robust_list resumed>) = 0 [pid 5065] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5126] chdir("./10" [pid 5065] <... rmdir resumed>) = 0 [pid 5126] <... chdir resumed>) = 0 [pid 5066] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5126 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... prctl resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5126] setpgid(0, 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... setpgid resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5126] write(3, "1000", 4 [pid 5065] unlink("./9/binderfs") = 0 [pid 5065] getdents64(3, [pid 5126] <... write resumed>) = 4 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5126] close(3 [pid 5065] close(3 [pid 5126] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5126] symlink("/dev/binderfs", "./binderfs" [pid 5065] rmdir("./9" [pid 5126] <... symlink resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5065] mkdir("./10", 0777) = 0 [pid 5126] sync( [pid 5066] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] <... openat resumed>) = 4 [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5066] newfstatat(4, "", [pid 5125] <... sync resumed>) = 0 [pid 5125] memfd_create("syzkaller", 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5125] <... memfd_create resumed>) = 3 [pid 5066] getdents64(4, [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5068] <... umount2 resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... close resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... rmdir resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, [pid 5066] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... sync resumed>) = 0 [pid 5126] memfd_create("syzkaller", 0) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5068] getdents64(4, [pid 5066] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5066] unlink("./9/binderfs" [pid 5125] <... write resumed>) = 524288 [pid 5066] <... unlink resumed>) = 0 [pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5066] getdents64(3, [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] unlink("./9/binderfs") = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5125] munmap(0x7f3e37c00000, 138412032 [pid 5068] rmdir("./9" [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5125] <... munmap resumed>) = 0 [pid 5068] mkdir("./10", 0777 [pid 5066] close(3 [pid 5065] <... ioctl resumed>) = 0 [pid 5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] <... close resumed>) = 0 [pid 5066] rmdir("./9" [pid 5125] <... openat resumed>) = 4 [pid 5068] <... mkdir resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] mkdir("./10", 0777 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] <... mkdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5125] ioctl(4, LOOP_SET_FD, 3 [pid 5066] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5066] close(3 [pid 5065] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 ./strace-static-x86_64: Process 5127 attached [pid 5127] set_robust_list(0x55555622a660, 24 [pid 5126] <... write resumed>) = 524288 [pid 5127] <... set_robust_list resumed>) = 0 [pid 5127] chdir("./10") = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5127 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0 [pid 5126] munmap(0x7f3e37c00000, 138412032 [pid 5127] <... setpgid resumed>) = 0 [pid 5126] <... munmap resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] write(3, "1000", 4 [pid 5126] <... openat resumed>) = 4 [pid 5127] <... write resumed>) = 4 [pid 5127] close(3) = 0 [pid 5127] symlink("/dev/binderfs", "./binderfs" [pid 5126] ioctl(4, LOOP_SET_FD, 3 [pid 5127] <... symlink resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5128 [pid 5127] sync(./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x55555622a660, 24) = 0 [pid 5125] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 5125] close(3 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5128] chdir("./10" [pid 5125] <... close resumed>) = 0 [pid 5125] close(4) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5129 ./strace-static-x86_64: Process 5129 attached [pid 5125] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5129] set_robust_list(0x55555622a660, 24 [pid 5126] <... ioctl resumed>) = 0 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5126] close(3 [pid 5125] <... mkdir resumed>) = 0 [pid 5129] chdir("./10" [pid 5128] <... chdir resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5126] close(4 [pid 5125] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5129] <... chdir resumed>) = 0 [pid 5128] <... prctl resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] setpgid(0, 0 [pid 5127] <... sync resumed>) = 0 [pid 5126] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5129] <... prctl resumed>) = 0 [pid 5127] memfd_create("syzkaller", 0 [pid 5126] <... mkdir resumed>) = 0 [pid 5127] <... memfd_create resumed>) = 3 [pid 5129] setpgid(0, 0 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5129] <... setpgid resumed>) = 0 [pid 5128] <... setpgid resumed>) = 0 [pid 5127] <... mmap resumed>) = 0x7f3e37c00000 [pid 5126] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] <... openat resumed>) = 3 [pid 5129] write(3, "1000", 4 [pid 5128] <... openat resumed>) = 3 [pid 5129] <... write resumed>) = 4 [pid 5129] close(3) = 0 [pid 5128] write(3, "1000", 4 [pid 5129] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5128] <... write resumed>) = 4 [ 80.590133][ T5125] loop2: detected capacity change from 0 to 1024 [ 80.613482][ T5126] loop4: detected capacity change from 0 to 1024 [pid 5128] close(3) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs" [pid 5125] <... mount resumed>) = 0 [pid 5129] sync( [pid 5128] <... symlink resumed>) = 0 [pid 5125] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5128] sync( [pid 5125] <... openat resumed>) = 3 [pid 5125] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5127] <... write resumed>) = 524288 [pid 5125] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5125] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5126] <... mount resumed>) = 0 [pid 5125] <... open resumed>) = 4 [pid 5126] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5125] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5126] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5127] munmap(0x7f3e37c00000, 138412032 [pid 5126] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5127] <... munmap resumed>) = 0 [pid 5125] <... creat resumed>) = 5 [pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] <... open resumed>) = 4 [pid 5125] exit_group(0 [pid 5127] ioctl(4, LOOP_SET_FD, 3 [pid 5125] <... exit_group resumed>) = ? [pid 5125] +++ exited with 0 +++ [pid 5126] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5128] <... sync resumed>) = 0 [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5129] <... sync resumed>) = 0 [pid 5128] memfd_create("syzkaller", 0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5128] <... memfd_create resumed>) = 3 [pid 5127] <... ioctl resumed>) = 0 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5127] close(3 [pid 5128] <... mmap resumed>) = 0x7f3e37c00000 [pid 5127] <... close resumed>) = 0 [pid 5126] <... creat resumed>) = 5 [pid 5129] <... memfd_create resumed>) = 3 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5127] close(4 [pid 5126] exit_group(0 [pid 5067] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5127] <... close resumed>) = 0 [pid 5127] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... exit_group resumed>) = ? [pid 5127] <... mkdir resumed>) = 0 [pid 5126] +++ exited with 0 +++ [pid 5067] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5129] <... write resumed>) = 524288 [pid 5069] newfstatat(3, "", [pid 5127] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [ 80.713024][ T5127] loop0: detected capacity change from 0 to 1024 [pid 5069] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5127] <... mount resumed>) = 0 [pid 5127] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5129] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5127] <... openat resumed>) = 3 [pid 5067] <... umount2 resumed>) = 0 [pid 5129] ioctl(4, LOOP_SET_FD, 3 [pid 5128] <... write resumed>) = 524288 [pid 5127] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... umount2 resumed>) = 0 [pid 5129] <... ioctl resumed>) = 0 [pid 5128] munmap(0x7f3e37c00000, 138412032 [pid 5127] <... chdir resumed>) = 0 [pid 5069] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5127] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5127] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] <... munmap resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... openat resumed>) = 4 [pid 5128] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5128] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 5128] ioctl(4, LOOP_SET_FD, 3 [pid 5067] newfstatat(4, "", [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5069] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] unlink("./10/binderfs" [pid 5067] getdents64(4, [pid 5127] <... open resumed>) = 4 [pid 5069] <... unlink resumed>) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5129] close(3 [pid 5069] getdents64(3, [pid 5129] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5129] close(4 [pid 5069] close(3 [pid 5129] <... close resumed>) = 0 [pid 5127] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5129] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5128] <... ioctl resumed>) = 0 [pid 5069] rmdir("./10" [pid 5067] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5129] <... mkdir resumed>) = 0 [pid 5128] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] mkdir("./11", 0777 [pid 5128] <... close resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5129] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5128] close(4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5128] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5128] <... mkdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5069] close(3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... close resumed>) = 0 [pid 5067] unlink("./9/binderfs" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... unlink resumed>) = 0 [pid 5128] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, ""./strace-static-x86_64: Process 5130 attached [pid 5130] set_robust_list(0x55555622a660, 24) = 0 [ 80.817881][ T5129] loop3: detected capacity change from 0 to 1024 [ 80.836678][ T5128] loop1: detected capacity change from 0 to 1024 [pid 5130] chdir("./11") = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5130 [pid 5067] getdents64(3, [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5130] <... prctl resumed>) = 0 [pid 5067] close(3 [pid 5130] setpgid(0, 0 [pid 5129] <... mount resumed>) = 0 [pid 5128] <... mount resumed>) = 0 [pid 5127] <... creat resumed>) = 5 [pid 5067] <... close resumed>) = 0 [pid 5130] <... setpgid resumed>) = 0 [pid 5129] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5128] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... openat resumed>) = 3 [pid 5128] <... openat resumed>) = 3 [pid 5129] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5130] <... openat resumed>) = 3 [pid 5129] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5128] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] rmdir("./9" [pid 5130] write(3, "1000", 4 [pid 5128] <... chdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5130] <... write resumed>) = 4 [pid 5128] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5130] close(3 [pid 5129] <... open resumed>) = 4 [pid 5128] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5127] exit_group(0 [pid 5067] mkdir("./10", 0777 [pid 5130] <... close resumed>) = 0 [pid 5128] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5127] <... exit_group resumed>) = ? [pid 5067] <... mkdir resumed>) = 0 [pid 5130] sync( [pid 5129] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5127] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] <... restart_syscall resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] <... creat resumed>) = 5 [pid 5128] <... open resumed>) = 4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5129] exit_group(0) = ? [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5128] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] getdents64(3, [pid 5129] +++ exited with 0 +++ [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5128] <... creat resumed>) = 5 [pid 5065] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5128] exit_group(0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5128] <... exit_group resumed>) = ? [pid 5068] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5128] +++ exited with 0 +++ [pid 5068] <... openat resumed>) = 3 [pid 5068] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5068] getdents64(3, [pid 5066] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... ioctl resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached , child_tidptr=0x55555622a650) = 5131 [pid 5131] set_robust_list(0x55555622a660, 24 [pid 5065] <... umount2 resumed>) = 0 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5131] chdir("./10" [pid 5130] <... sync resumed>) = 0 [pid 5068] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] memfd_create("syzkaller", 0 [pid 5068] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5130] <... memfd_create resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... openat resumed>) = 4 [pid 5066] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] newfstatat(4, "", [pid 5066] <... openat resumed>) = 4 [pid 5065] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5131] <... chdir resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] newfstatat(4, "", [pid 5065] <... openat resumed>) = 4 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] getdents64(4, [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] newfstatat(4, "", [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] getdents64(4, [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5131] <... prctl resumed>) = 0 [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] getdents64(4, [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, [pid 5131] setpgid(0, 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] getdents64(4, [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] close(4 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5131] <... setpgid resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5066] close(4 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... close resumed>) = 0 [pid 5065] getdents64(4, [pid 5131] <... openat resumed>) = 3 [pid 5068] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5131] write(3, "1000", 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] close(4) = 0 [pid 5065] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5065] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5130] <... write resumed>) = 524288 [pid 5068] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5131] <... write resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] unlink("./10/binderfs" [pid 5131] close(3) = 0 [pid 5131] symlink("/dev/binderfs", "./binderfs" [pid 5068] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5066] unlink("./10/binderfs" [pid 5065] <... unlink resumed>) = 0 [pid 5131] <... symlink resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5065] getdents64(3, [pid 5131] sync( [pid 5068] unlink("./10/binderfs" [pid 5066] getdents64(3, [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3 [pid 5068] getdents64(3, [pid 5066] close(3 [pid 5065] <... close resumed>) = 0 [pid 5130] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... close resumed>) = 0 [pid 5065] rmdir("./10" [pid 5130] <... munmap resumed>) = 0 [pid 5066] rmdir("./10" [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5131] <... sync resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5065] mkdir("./11", 0777 [pid 5131] memfd_create("syzkaller", 0) = 3 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5131] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] close(3) = 0 [pid 5130] <... openat resumed>) = 4 [pid 5068] rmdir("./10") = 0 [pid 5066] mkdir("./11", 0777 [pid 5130] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... mkdir resumed>) = 0 [pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] mkdir("./11", 0777 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5130] <... ioctl resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5130] close(3) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5065] <... openat resumed>) = 3 [pid 5130] close(4 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5130] <... close resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5130] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5130] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "") = 0 [pid 5130] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5131] <... write resumed>) = 524288 [pid 5130] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5131] munmap(0x7f3e37c00000, 138412032 [pid 5130] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5131] <... munmap resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5130] <... open resumed>) = 4 [pid 5131] <... openat resumed>) = 4 [ 81.073488][ T5130] loop4: detected capacity change from 0 to 1024 [pid 5130] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5131] ioctl(4, LOOP_SET_FD, 3 [pid 5130] <... creat resumed>) = 5 [pid 5130] exit_group(0 [pid 5131] <... ioctl resumed>) = 0 [pid 5130] <... exit_group resumed>) = ? [pid 5131] close(3 [pid 5130] +++ exited with 0 +++ [pid 5065] <... ioctl resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=2 /* 0.02 s */} --- [pid 5069] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5131] <... close resumed>) = 0 [pid 5131] close(4 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] <... close resumed>) = 0 [pid 5131] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5131] <... mkdir resumed>) = 0 [ 81.122951][ T5131] loop2: detected capacity change from 0 to 1024 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] close(3 [pid 5131] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] close(3 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5132 [pid 5065] <... close resumed>) = 0 ./strace-static-x86_64: Process 5132 attached [pid 5132] set_robust_list(0x55555622a660, 24 [pid 5069] <... umount2 resumed>) = 0 [pid 5132] <... set_robust_list resumed>) = 0 [pid 5132] chdir("./11" [pid 5069] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] <... chdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... close resumed>) = 0 ./strace-static-x86_64: Process 5133 attached [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5133 [pid 5132] <... prctl resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5132] setpgid(0, 0 [pid 5069] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5133] set_robust_list(0x55555622a660, 24 [pid 5069] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5133] <... set_robust_list resumed>) = 0 [pid 5133] chdir("./11" [pid 5132] <... setpgid resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] newfstatat(4, "", [pid 5132] <... openat resumed>) = 3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5134 attached [pid 5133] <... chdir resumed>) = 0 [pid 5132] write(3, "1000", 4 [pid 5069] getdents64(4, [pid 5134] set_robust_list(0x55555622a660, 24 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5134 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5133] <... prctl resumed>) = 0 [pid 5132] <... write resumed>) = 4 [pid 5069] getdents64(4, [pid 5134] chdir("./11" [pid 5132] close(3 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5134] <... chdir resumed>) = 0 [pid 5133] setpgid(0, 0 [pid 5132] <... close resumed>) = 0 [pid 5069] close(4 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... setpgid resumed>) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs" [pid 5134] <... prctl resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] <... symlink resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5134] setpgid(0, 0 [pid 5132] sync( [pid 5069] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5134] <... setpgid resumed>) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5131] <... mount resumed>) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5133] write(3, "1000", 4 [pid 5131] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... rmdir resumed>) = 0 [pid 5134] <... openat resumed>) = 3 [pid 5133] <... write resumed>) = 4 [pid 5131] <... openat resumed>) = 3 [pid 5069] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] close(3) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5133] symlink("/dev/binderfs", "./binderfs" [pid 5131] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5131] <... chdir resumed>) = 0 [pid 5069] unlink("./11/binderfs" [pid 5133] <... symlink resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... unlink resumed>) = 0 [pid 5134] write(3, "1000", 4 [pid 5131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] getdents64(3, [pid 5134] <... write resumed>) = 4 [pid 5131] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5134] close(3 [pid 5133] sync( [pid 5134] <... close resumed>) = 0 [pid 5132] <... sync resumed>) = 0 [pid 5069] close(3 [pid 5134] symlink("/dev/binderfs", "./binderfs" [pid 5132] memfd_create("syzkaller", 0 [pid 5069] <... close resumed>) = 0 [pid 5132] <... memfd_create resumed>) = 3 [pid 5069] rmdir("./11" [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5069] <... rmdir resumed>) = 0 [pid 5134] <... symlink resumed>) = 0 [pid 5131] <... open resumed>) = 4 [pid 5069] mkdir("./12", 0777 [pid 5134] sync( [pid 5069] <... mkdir resumed>) = 0 [pid 5131] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5133] <... sync resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5133] memfd_create("syzkaller", 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5133] <... memfd_create resumed>) = 3 [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5132] <... write resumed>) = 524288 [pid 5131] <... creat resumed>) = 5 [pid 5131] exit_group(0 [pid 5134] <... sync resumed>) = 0 [pid 5132] munmap(0x7f3e37c00000, 138412032 [pid 5131] <... exit_group resumed>) = ? [pid 5134] memfd_create("syzkaller", 0) = 3 [pid 5133] <... write resumed>) = 524288 [pid 5131] +++ exited with 0 +++ [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5134] <... mmap resumed>) = 0x7f3e37c00000 [pid 5133] munmap(0x7f3e37c00000, 138412032 [pid 5132] <... munmap resumed>) = 0 [pid 5067] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5132] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5132] ioctl(4, LOOP_SET_FD, 3 [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5133] <... munmap resumed>) = 0 [pid 5132] <... ioctl resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5133] <... openat resumed>) = 4 [pid 5132] close(3 [pid 5133] ioctl(4, LOOP_SET_FD, 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5132] <... close resumed>) = 0 [pid 5132] close(4) = 0 [pid 5132] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5132] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] close(3 [pid 5132] <... mount resumed>) = 0 [pid 5067] getdents64(3, [pid 5132] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5132] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5132] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5134] <... write resumed>) = 524288 [pid 5134] munmap(0x7f3e37c00000, 138412032 [pid 5132] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5135 attached [pid 5132] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5135] set_robust_list(0x55555622a660, 24 [pid 5134] <... munmap resumed>) = 0 [pid 5133] <... ioctl resumed>) = 0 [pid 5132] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5135 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5135] chdir("./12" [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5133] close(3) = 0 [pid 5134] <... openat resumed>) = 4 [pid 5133] close(4 [ 81.296623][ T5132] loop1: detected capacity change from 0 to 1024 [ 81.317861][ T5133] loop0: detected capacity change from 0 to 1024 [pid 5135] <... chdir resumed>) = 0 [pid 5134] ioctl(4, LOOP_SET_FD, 3 [pid 5133] <... close resumed>) = 0 [pid 5132] <... open resumed>) = 4 [pid 5067] <... umount2 resumed>) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] <... ioctl resumed>) = 0 [pid 5133] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5135] <... prctl resumed>) = 0 [pid 5135] setpgid(0, 0 [pid 5132] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] <... setpgid resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5135] <... openat resumed>) = 3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] write(3, "1000", 4 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5135] <... write resumed>) = 4 [pid 5067] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5135] close(3 [pid 5132] <... creat resumed>) = 5 [pid 5067] <... openat resumed>) = 4 [pid 5135] <... close resumed>) = 0 [pid 5067] newfstatat(4, "", [pid 5135] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5135] <... symlink resumed>) = 0 [pid 5134] close(3 [pid 5133] <... mkdir resumed>) = 0 [pid 5067] getdents64(4, [pid 5135] sync( [pid 5134] <... close resumed>) = 0 [pid 5133] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5134] close(4 [pid 5132] exit_group(0 [pid 5067] getdents64(4, [pid 5134] <... close resumed>) = 0 [pid 5132] <... exit_group resumed>) = ? [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5134] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5132] +++ exited with 0 +++ [pid 5067] close(4) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5067] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5134] <... mkdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5067] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./10/binderfs" [pid 5066] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... unlink resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5067] getdents64(3, [pid 5066] newfstatat(3, "", [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] rmdir("./10") = 0 [ 81.357208][ T5134] loop3: detected capacity change from 0 to 1024 [pid 5066] getdents64(3, [pid 5133] <... mount resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5133] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5067] mkdir("./11", 0777 [pid 5133] <... openat resumed>) = 3 [pid 5066] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... mkdir resumed>) = 0 [pid 5133] <... chdir resumed>) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5133] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] <... umount2 resumed>) = 0 [pid 5134] <... mount resumed>) = 0 [pid 5133] <... open resumed>) = 4 [pid 5066] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5134] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5133] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] <... openat resumed>) = 3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5134] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5066] getdents64(4, [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5133] <... creat resumed>) = 5 [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5133] exit_group(0 [pid 5134] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5133] <... exit_group resumed>) = ? [pid 5067] <... ioctl resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5135] <... sync resumed>) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5135] memfd_create("syzkaller", 0 [pid 5066] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5133] +++ exited with 0 +++ [pid 5066] <... rmdir resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5135] <... memfd_create resumed>) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5066] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5134] <... open resumed>) = 4 [pid 5065] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5134] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] close(3 [pid 5066] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5065] <... openat resumed>) = 3 [pid 5065] newfstatat(3, "", [pid 5067] <... close resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] unlink("./11/binderfs" [pid 5065] getdents64(3, ./strace-static-x86_64: Process 5136 attached [pid 5066] <... unlink resumed>) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5136] set_robust_list(0x55555622a660, 24 [pid 5066] getdents64(3, [pid 5065] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5136 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5134] <... creat resumed>) = 5 [pid 5066] close(3 [pid 5136] chdir("./11" [pid 5066] <... close resumed>) = 0 [pid 5136] <... chdir resumed>) = 0 [pid 5134] exit_group(0 [pid 5066] rmdir("./11" [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5134] <... exit_group resumed>) = ? [pid 5066] <... rmdir resumed>) = 0 [pid 5136] setpgid(0, 0) = 0 [pid 5066] mkdir("./12", 0777) = 0 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5135] <... write resumed>) = 524288 [pid 5136] <... openat resumed>) = 3 [pid 5134] +++ exited with 0 +++ [pid 5065] <... umount2 resumed>) = 0 [pid 5136] write(3, "1000", 4) = 4 [pid 5135] munmap(0x7f3e37c00000, 138412032 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5065] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5136] close(3 [pid 5135] <... munmap resumed>) = 0 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5136] <... close resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5136] symlink("/dev/binderfs", "./binderfs" [pid 5065] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5135] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5136] <... symlink resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5136] sync( [pid 5068] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5135] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5065] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] ioctl(4, LOOP_SET_FD, 3 [pid 5068] newfstatat(3, "", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5135] <... ioctl resumed>) = 0 [pid 5068] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] close(3 [pid 5065] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = 0 [pid 5065] newfstatat(4, "", [pid 5136] <... sync resumed>) = 0 [pid 5135] <... close resumed>) = 0 [pid 5135] close(4 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5136] memfd_create("syzkaller", 0 [pid 5135] <... close resumed>) = 0 [pid 5068] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... ioctl resumed>) = 0 [pid 5136] <... memfd_create resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5135] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5065] getdents64(4, [pid 5066] close(3 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] <... close resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5136] <... mmap resumed>) = 0x7f3e37c00000 [pid 5135] <... mkdir resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5135] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5137 attached [pid 5068] newfstatat(4, "", [pid 5065] close(4 [pid 5137] set_robust_list(0x55555622a660, 24 [pid 5135] <... mount resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5137 [pid 5065] <... close resumed>) = 0 [pid 5137] <... set_robust_list resumed>) = 0 [pid 5135] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5137] chdir("./12" [pid 5135] <... openat resumed>) = 3 [pid 5068] getdents64(4, [pid 5065] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5137] <... chdir resumed>) = 0 [ 81.524715][ T5135] loop4: detected capacity change from 0 to 1024 [pid 5135] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5136] <... write resumed>) = 524288 [pid 5135] <... chdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... rmdir resumed>) = 0 [pid 5137] <... prctl resumed>) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5137] setpgid(0, 0 [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5137] <... setpgid resumed>) = 0 [pid 5135] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] close(4 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] <... openat resumed>) = 3 [pid 5068] <... rmdir resumed>) = 0 [pid 5065] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5137] write(3, "1000", 4 [pid 5136] munmap(0x7f3e37c00000, 138412032 [pid 5135] <... open resumed>) = 4 [pid 5068] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] <... write resumed>) = 4 [pid 5136] <... munmap resumed>) = 0 [pid 5135] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5137] close(3 [pid 5068] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] unlink("./11/binderfs" [pid 5068] unlink("./11/binderfs" [pid 5137] <... close resumed>) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... unlink resumed>) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5136] <... openat resumed>) = 4 [pid 5068] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs" [pid 5136] ioctl(4, LOOP_SET_FD, 3 [pid 5068] close(3 [pid 5137] <... symlink resumed>) = 0 [pid 5135] <... creat resumed>) = 5 [pid 5068] <... close resumed>) = 0 [pid 5065] getdents64(3, [pid 5068] rmdir("./11") = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5137] sync( [pid 5065] close(3 [pid 5068] mkdir("./12", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5065] rmdir("./11" [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5136] <... ioctl resumed>) = 0 [pid 5137] <... sync resumed>) = 0 [pid 5135] exit_group(0 [pid 5065] <... rmdir resumed>) = 0 [pid 5136] close(3 [pid 5135] <... exit_group resumed>) = ? [pid 5136] <... close resumed>) = 0 [pid 5137] memfd_create("syzkaller", 0) = 3 [pid 5136] close(4 [pid 5065] mkdir("./12", 0777 [pid 5136] <... close resumed>) = 0 [pid 5136] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5135] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5136] <... mkdir resumed>) = 0 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5137] <... mmap resumed>) = 0x7f3e37c00000 [pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5136] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] <... openat resumed>) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 81.602094][ T5136] loop2: detected capacity change from 0 to 1024 [pid 5137] <... write resumed>) = 524288 [pid 5069] getdents64(3, [pid 5068] <... ioctl resumed>) = 0 [pid 5137] munmap(0x7f3e37c00000, 138412032 [pid 5136] <... mount resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5137] <... munmap resumed>) = 0 [pid 5068] close(3 [pid 5136] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5068] <... close resumed>) = 0 [pid 5137] ioctl(4, LOOP_SET_FD, 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555622a650) = 5138 ./strace-static-x86_64: Process 5138 attached [pid 5138] set_robust_list(0x55555622a660, 24) = 0 [pid 5138] chdir("./12") = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5138] setpgid(0, 0) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5138] write(3, "1000", 4) = 4 [pid 5138] close(3) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5138] symlink("/dev/binderfs", "./binderfs" [pid 5136] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5138] <... symlink resumed>) = 0 [pid 5136] <... chdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5138] sync( [pid 5137] <... ioctl resumed>) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... ioctl resumed>) = 0 [pid 5137] close(3 [pid 5136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] <... close resumed>) = 0 [pid 5137] close(4 [pid 5136] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5137] <... close resumed>) = 0 [pid 5137] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5137] <... mkdir resumed>) = 0 [pid 5136] <... open resumed>) = 4 [pid 5069] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5136] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5065] <... close resumed>) = 0 [pid 5069] newfstatat(4, "", [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5139 attached [pid 5137] <... mount resumed>) = 0 [pid 5069] getdents64(4, [pid 5137] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5139 [pid 5137] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [ 81.680099][ T5137] loop1: detected capacity change from 0 to 1024 [pid 5137] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] getdents64(4, [pid 5139] set_robust_list(0x55555622a660, 24 [pid 5137] <... chdir resumed>) = 0 [pid 5136] <... creat resumed>) = 5 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5138] <... sync resumed>) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5139] chdir("./12" [pid 5137] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] close(4 [pid 5138] memfd_create("syzkaller", 0 [pid 5139] <... chdir resumed>) = 0 [pid 5137] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5136] exit_group(0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] <... prctl resumed>) = 0 [pid 5136] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] setpgid(0, 0 [pid 5136] +++ exited with 0 +++ [pid 5139] <... setpgid resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5139] <... openat resumed>) = 3 [pid 5138] <... memfd_create resumed>) = 3 [pid 5069] unlink("./12/binderfs" [pid 5067] restart_syscall(<... resuming interrupted clone ...> [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... unlink resumed>) = 0 [pid 5067] <... restart_syscall resumed>) = 0 [pid 5139] write(3, "1000", 4 [pid 5138] <... mmap resumed>) = 0x7f3e37c00000 [pid 5139] <... write resumed>) = 4 [pid 5069] getdents64(3, [pid 5067] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] close(3 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] <... close resumed>) = 0 [pid 5069] close(3 [pid 5067] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5139] symlink("/dev/binderfs", "./binderfs" [pid 5067] <... openat resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 5067] newfstatat(3, "", [pid 5069] rmdir("./12" [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... rmdir resumed>) = 0 [pid 5067] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5137] <... open resumed>) = 4 [pid 5069] mkdir("./13", 0777 [pid 5139] <... symlink resumed>) = 0 [pid 5137] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5139] sync( [pid 5069] <... mkdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5067] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5137] <... creat resumed>) = 5 [pid 5067] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] <... write resumed>) = 524288 [pid 5137] exit_group(0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] munmap(0x7f3e37c00000, 138412032 [pid 5137] <... exit_group resumed>) = ? [pid 5067] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] newfstatat(4, "", [pid 5138] <... munmap resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5139] <... sync resumed>) = 0 [pid 5138] ioctl(4, LOOP_SET_FD, 3 [pid 5067] getdents64(4, [pid 5139] memfd_create("syzkaller", 0 [pid 5137] +++ exited with 0 +++ [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5139] <... memfd_create resumed>) = 3 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] close(4 [pid 5066] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] <... close resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5138] <... ioctl resumed>) = 0 [pid 5067] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5138] close(3) = 0 [pid 5138] close(4 [pid 5067] <... rmdir resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] <... close resumed>) = 0 [pid 5138] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5066] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./11/binderfs") = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5138] <... mkdir resumed>) = 0 [pid 5138] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] rmdir("./11") = 0 [pid 5067] mkdir("./12", 0777) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5138] <... mount resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5139] <... write resumed>) = 524288 [pid 5138] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5066] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5139] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] <... chdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5138] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5139] <... munmap resumed>) = 0 [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5138] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5139] <... openat resumed>) = 4 [pid 5066] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5139] ioctl(4, LOOP_SET_FD, 3 [ 81.806974][ T5138] loop3: detected capacity change from 0 to 1024 [pid 5066] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5066] newfstatat(4, "", [pid 5069] close(3) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4 [pid 5138] <... open resumed>) = 4 [pid 5066] <... close resumed>) = 0 [pid 5066] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 ./strace-static-x86_64: Process 5140 attached [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5140 [pid 5140] set_robust_list(0x55555622a660, 24 [pid 5066] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5140] <... set_robust_list resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./12/binderfs") = 0 [pid 5140] chdir("./13" [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5066] rmdir("./12") = 0 [pid 5140] <... chdir resumed>) = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] mkdir("./13", 0777 [pid 5140] <... prctl resumed>) = 0 [pid 5138] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5140] setpgid(0, 0) = 0 [pid 5139] <... ioctl resumed>) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] close(3 [pid 5140] <... openat resumed>) = 3 [pid 5139] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5139] close(4) = 0 [pid 5138] <... creat resumed>) = 5 [pid 5066] <... openat resumed>) = 3 [pid 5140] write(3, "1000", 4 [pid 5139] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5140] <... write resumed>) = 4 [pid 5139] <... mkdir resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5140] close(3) = 0 [pid 5140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5139] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5140] sync( [pid 5138] exit_group(0) = ? [pid 5138] +++ exited with 0 +++ [pid 5139] <... mount resumed>) = 0 [pid 5139] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5139] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5139] <... chdir resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5139] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5139] <... open resumed>) = 4 [pid 5068] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... ioctl resumed>) = 0 [ 81.848812][ T5139] loop0: detected capacity change from 0 to 1024 [pid 5068] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5139] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... openat resumed>) = 3 [pid 5140] <... sync resumed>) = 0 [pid 5068] newfstatat(3, "", [pid 5067] close(3 [pid 5140] memfd_create("syzkaller", 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... close resumed>) = 0 [pid 5068] getdents64(3, [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5140] <... memfd_create resumed>) = 3 [pid 5068] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5139] <... creat resumed>) = 5 [pid 5066] close(3 [pid 5139] exit_group(0) = ? [pid 5139] +++ exited with 0 +++ [pid 5066] <... close resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5141 [pid 5065] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5141 attached [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5142 [pid 5065] newfstatat(3, "", [pid 5141] set_robust_list(0x55555622a660, 24 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5065] getdents64(3, [pid 5141] chdir("./12" [pid 5068] <... umount2 resumed>) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5142 attached [pid 5141] <... chdir resumed>) = 0 [pid 5065] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5142] set_robust_list(0x55555622a660, 24 [pid 5141] <... prctl resumed>) = 0 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] setpgid(0, 0 [pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = 0 [pid 5142] chdir("./13" [pid 5141] <... setpgid resumed>) = 0 [pid 5142] <... chdir resumed>) = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] setpgid(0, 0 [pid 5141] <... openat resumed>) = 3 [pid 5142] <... setpgid resumed>) = 0 [pid 5141] write(3, "1000", 4 [pid 5140] <... write resumed>) = 524288 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... write resumed>) = 4 [pid 5068] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5141] close(3 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5141] <... close resumed>) = 0 [pid 5065] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5141] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5141] <... symlink resumed>) = 0 [pid 5068] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] sync( [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] <... openat resumed>) = 3 [pid 5140] munmap(0x7f3e37c00000, 138412032 [pid 5068] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 4 [pid 5065] <... openat resumed>) = 4 [pid 5068] newfstatat(4, "", [pid 5142] write(3, "1000", 4 [pid 5140] <... munmap resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] newfstatat(4, "", [pid 5142] <... write resumed>) = 4 [pid 5068] getdents64(4, [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5142] close(3 [pid 5140] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5142] <... close resumed>) = 0 [pid 5140] <... openat resumed>) = 4 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, [pid 5142] symlink("/dev/binderfs", "./binderfs" [pid 5141] <... sync resumed>) = 0 [pid 5140] ioctl(4, LOOP_SET_FD, 3 [pid 5142] <... symlink resumed>) = 0 [pid 5141] memfd_create("syzkaller", 0 [pid 5068] getdents64(4, [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5141] <... memfd_create resumed>) = 3 [pid 5065] close(4 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... close resumed>) = 0 [pid 5141] <... mmap resumed>) = 0x7f3e37c00000 [pid 5065] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5142] sync( [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5068] close(4 [pid 5065] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] unlink("./12/binderfs" [pid 5068] <... rmdir resumed>) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5065] getdents64(3, [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3 [pid 5142] <... sync resumed>) = 0 [pid 5068] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... close resumed>) = 0 [pid 5140] <... ioctl resumed>) = 0 [pid 5065] rmdir("./12" [pid 5140] close(3) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5140] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] memfd_create("syzkaller", 0 [pid 5140] <... close resumed>) = 0 [pid 5142] <... memfd_create resumed>) = 3 [pid 5140] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5140] <... mkdir resumed>) = 0 [pid 5142] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] mkdir("./13", 0777) = 0 [pid 5140] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] unlink("./12/binderfs" [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3 [pid 5068] <... unlink resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached [pid 5068] getdents64(3, [pid 5143] set_robust_list(0x55555622a660, 24) = 0 [ 81.972588][ T5140] loop4: detected capacity change from 0 to 1024 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5143 [pid 5143] chdir("./13" [pid 5141] <... write resumed>) = 524288 [pid 5068] close(3 [pid 5143] <... chdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] munmap(0x7f3e37c00000, 138412032 [pid 5143] <... prctl resumed>) = 0 [pid 5141] <... munmap resumed>) = 0 [pid 5143] setpgid(0, 0 [pid 5068] rmdir("./12" [pid 5143] <... setpgid resumed>) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5140] <... mount resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5143] <... openat resumed>) = 3 [pid 5141] <... openat resumed>) = 4 [pid 5140] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5143] write(3, "1000", 4 [pid 5141] ioctl(4, LOOP_SET_FD, 3 [pid 5140] <... openat resumed>) = 3 [pid 5143] <... write resumed>) = 4 [pid 5142] <... write resumed>) = 524288 [pid 5140] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] mkdir("./13", 0777 [pid 5143] close(3 [pid 5140] <... chdir resumed>) = 0 [pid 5143] <... close resumed>) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5143] symlink("/dev/binderfs", "./binderfs" [pid 5140] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5143] <... symlink resumed>) = 0 [pid 5140] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5143] sync( [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5140] <... open resumed>) = 4 [pid 5141] <... ioctl resumed>) = 0 [pid 5142] munmap(0x7f3e37c00000, 138412032 [pid 5140] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5141] close(3) = 0 [pid 5141] close(4) = 0 [pid 5142] <... munmap resumed>) = 0 [pid 5141] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5143] <... sync resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5141] <... mkdir resumed>) = 0 [pid 5140] <... creat resumed>) = 5 [pid 5143] memfd_create("syzkaller", 0) = 3 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 82.049520][ T5141] loop2: detected capacity change from 0 to 1024 [pid 5140] exit_group(0 [pid 5143] <... mmap resumed>) = 0x7f3e37c00000 [pid 5142] <... openat resumed>) = 4 [pid 5141] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5140] <... exit_group resumed>) = ? [pid 5142] ioctl(4, LOOP_SET_FD, 3 [pid 5140] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5142] <... ioctl resumed>) = 0 [pid 5069] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] <... mount resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5141] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5141] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5141] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] newfstatat(3, "", [pid 5141] <... chdir resumed>) = 0 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5141] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5141] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] getdents64(3, [pid 5068] <... ioctl resumed>) = 0 [pid 5141] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] <... open resumed>) = 4 [pid 5143] <... write resumed>) = 524288 [pid 5142] close(3 [pid 5068] close(3 [pid 5142] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5141] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5142] close(4 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5142] <... close resumed>) = 0 [ 82.108520][ T5142] loop1: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5144 attached [pid 5142] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5144] set_robust_list(0x55555622a660, 24) = 0 [pid 5142] <... mkdir resumed>) = 0 [pid 5141] <... creat resumed>) = 5 [pid 5069] <... umount2 resumed>) = 0 [pid 5144] chdir("./13" [pid 5143] munmap(0x7f3e37c00000, 138412032 [pid 5142] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5141] exit_group(0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5144 [pid 5144] <... chdir resumed>) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] <... munmap resumed>) = 0 [pid 5141] <... exit_group resumed>) = ? [pid 5069] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] <... prctl resumed>) = 0 [pid 5144] setpgid(0, 0 [pid 5141] +++ exited with 0 +++ [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] <... setpgid resumed>) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5069] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] <... openat resumed>) = 4 [pid 5069] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] <... openat resumed>) = 3 [pid 5143] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5144] write(3, "1000", 4) = 4 [pid 5067] <... openat resumed>) = 3 [pid 5144] close(3 [pid 5067] newfstatat(3, "", [pid 5144] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5144] symlink("/dev/binderfs", "./binderfs" [pid 5069] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5144] <... symlink resumed>) = 0 [pid 5069] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5144] sync( [pid 5069] getdents64(4, [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] getdents64(3, [pid 5069] close(4 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5142] <... mount resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5142] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5142] <... openat resumed>) = 3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5142] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] unlink("./13/binderfs" [pid 5143] close(3 [pid 5142] <... chdir resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5143] <... close resumed>) = 0 [pid 5142] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5143] close(4 [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] getdents64(3, [pid 5143] <... close resumed>) = 0 [pid 5142] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5143] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] close(3 [pid 5143] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5069] rmdir("./13" [pid 5067] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... rmdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./14", 0777 [pid 5067] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... mkdir resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5142] <... open resumed>) = 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5067] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] <... sync resumed>) = 0 [pid 5142] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5144] memfd_create("syzkaller", 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... openat resumed>) = 4 [pid 5144] <... memfd_create resumed>) = 3 [pid 5067] newfstatat(4, "", [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 82.199805][ T5143] loop0: detected capacity change from 0 to 1024 [pid 5144] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] getdents64(4, [pid 5143] <... mount resumed>) = 0 [pid 5143] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5143] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5143] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5143] <... open resumed>) = 4 [pid 5067] close(4 [pid 5142] <... creat resumed>) = 5 [pid 5067] <... close resumed>) = 0 [pid 5143] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5142] exit_group(0) = ? [pid 5067] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] <... creat resumed>) = 5 [pid 5142] +++ exited with 0 +++ [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5143] exit_group(0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] unlink("./12/binderfs" [pid 5144] <... write resumed>) = 524288 [pid 5143] <... exit_group resumed>) = ? [pid 5067] <... unlink resumed>) = 0 [pid 5066] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] +++ exited with 0 +++ [pid 5067] getdents64(3, [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] close(3 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5066] <... openat resumed>) = 3 [pid 5067] <... close resumed>) = 0 [pid 5066] newfstatat(3, "", [pid 5067] rmdir("./12" [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5065] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] mkdir("./13", 0777 [pid 5065] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5145 attached [pid 5065] getdents64(3, [pid 5145] set_robust_list(0x55555622a660, 24 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5145 [pid 5065] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5145] chdir("./14") = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] <... mkdir resumed>) = 0 [pid 5145] <... prctl resumed>) = 0 [pid 5144] munmap(0x7f3e37c00000, 138412032 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5145] setpgid(0, 0 [pid 5144] <... munmap resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5145] <... setpgid resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] <... umount2 resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5145] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5145] sync( [pid 5144] ioctl(4, LOOP_SET_FD, 3 [pid 5066] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5145] <... sync resumed>) = 0 [pid 5145] memfd_create("syzkaller", 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5145] <... memfd_create resumed>) = 3 [pid 5066] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5066] <... openat resumed>) = 4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... ioctl resumed>) = 0 [pid 5066] newfstatat(4, "", [pid 5065] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5144] <... ioctl resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, [pid 5144] close(3) = 0 [pid 5066] getdents64(4, [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5144] close(4 [pid 5067] close(3 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5144] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5065] getdents64(4, [pid 5144] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] close(4 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 [pid 5065] close(4 [pid 5144] <... mkdir resumed>) = 0 [pid 5066] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... close resumed>) = 0 [pid 5144] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5146 ./strace-static-x86_64: Process 5146 attached [pid 5145] <... write resumed>) = 524288 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5146] set_robust_list(0x55555622a660, 24 [pid 5065] <... rmdir resumed>) = 0 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5146] chdir("./13" [pid 5145] munmap(0x7f3e37c00000, 138412032 [pid 5065] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... chdir resumed>) = 0 [pid 5145] <... munmap resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5146] <... prctl resumed>) = 0 [pid 5145] <... openat resumed>) = 4 [pid 5146] setpgid(0, 0 [pid 5066] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] unlink("./13/binderfs" [pid 5146] <... setpgid resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 82.331730][ T5144] loop3: detected capacity change from 0 to 1024 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5145] ioctl(4, LOOP_SET_FD, 3 [pid 5066] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5065] <... unlink resumed>) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5146] write(3, "1000", 4 [pid 5145] <... ioctl resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] getdents64(3, [pid 5146] <... write resumed>) = 4 [pid 5146] close(3) = 0 [pid 5146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5146] sync( [pid 5066] unlink("./13/binderfs" [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5145] close(3) = 0 [pid 5145] close(4) = 0 [pid 5145] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5144] <... mount resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5065] close(3 [pid 5066] getdents64(3, [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./13" [pid 5144] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5145] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5144] <... openat resumed>) = 3 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5144] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] close(3 [pid 5065] mkdir("./14", 0777 [pid 5144] <... chdir resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... mkdir resumed>) = 0 [pid 5145] <... mount resumed>) = 0 [pid 5066] rmdir("./13" [pid 5146] <... sync resumed>) = 0 [pid 5145] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5144] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] memfd_create("syzkaller", 0 [pid 5145] <... openat resumed>) = 3 [pid 5144] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] <... rmdir resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5145] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] <... openat resumed>) = 3 [pid 5066] mkdir("./14", 0777 [pid 5145] <... chdir resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5146] <... memfd_create resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5145] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5146] <... mmap resumed>) = 0x7f3e37c00000 [pid 5145] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] <... openat resumed>) = 3 [pid 5144] <... open resumed>) = 4 [ 82.397474][ T5145] loop4: detected capacity change from 0 to 1024 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5144] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5145] <... open resumed>) = 4 [pid 5145] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001) = 5 [pid 5144] <... creat resumed>) = 5 [pid 5144] exit_group(0 [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5145] exit_group(0 [pid 5144] <... exit_group resumed>) = ? [pid 5145] <... exit_group resumed>) = ? [pid 5145] +++ exited with 0 +++ [pid 5144] +++ exited with 0 +++ [pid 5146] <... write resumed>) = 524288 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... ioctl resumed>) = 0 [pid 5146] munmap(0x7f3e37c00000, 138412032 [pid 5069] <... umount2 resumed>) = 0 [pid 5146] <... munmap resumed>) = 0 [pid 5069] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5146] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... openat resumed>) = 4 [pid 5069] newfstatat(4, "", [pid 5068] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... ioctl resumed>) = 0 [pid 5065] close(3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] close(3 [pid 5065] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5066] <... close resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] newfstatat(3, "", [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached ./strace-static-x86_64: Process 5147 attached [pid 5069] getdents64(4, [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5148] set_robust_list(0x55555622a660, 24 [pid 5068] getdents64(3, [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5148 [pid 5148] <... set_robust_list resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5148] chdir("./14" [pid 5068] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] <... chdir resumed>) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5148] setpgid(0, 0) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5148] write(3, "1000", 4 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5147 [pid 5148] <... write resumed>) = 4 [pid 5147] set_robust_list(0x55555622a660, 24 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5148] close(3 [pid 5069] getdents64(4, [pid 5148] <... close resumed>) = 0 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5148] symlink("/dev/binderfs", "./binderfs" [pid 5147] chdir("./14" [pid 5069] close(4 [pid 5147] <... chdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5148] <... symlink resumed>) = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5148] sync( [pid 5069] <... rmdir resumed>) = 0 [pid 5147] <... prctl resumed>) = 0 [pid 5069] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] setpgid(0, 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] <... setpgid resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] <... ioctl resumed>) = 0 [pid 5069] unlink("./14/binderfs") = 0 [pid 5146] close(3 [pid 5147] <... openat resumed>) = 3 [pid 5069] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5146] <... close resumed>) = 0 [pid 5069] close(3 [pid 5146] close(4) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./14" [pid 5146] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5147] write(3, "1000", 4 [pid 5068] <... umount2 resumed>) = 0 [pid 5147] <... write resumed>) = 4 [ 82.537153][ T5146] loop2: detected capacity change from 0 to 1024 [pid 5068] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] close(3 [pid 5146] <... mkdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] <... close resumed>) = 0 [pid 5148] <... sync resumed>) = 0 [pid 5146] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5147] symlink("/dev/binderfs", "./binderfs" [pid 5069] mkdir("./15", 0777 [pid 5068] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5148] memfd_create("syzkaller", 0 [pid 5147] <... symlink resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5147] sync( [pid 5069] <... mkdir resumed>) = 0 [pid 5068] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] <... memfd_create resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5146] <... mount resumed>) = 0 [pid 5147] <... sync resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5146] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5147] memfd_create("syzkaller", 0 [pid 5146] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] newfstatat(4, "", [pid 5146] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5146] <... chdir resumed>) = 0 [pid 5068] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, [pid 5146] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] close(4 [pid 5146] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] <... close resumed>) = 0 [pid 5147] <... memfd_create resumed>) = 3 [pid 5068] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] <... open resumed>) = 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5147] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5146] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5148] <... write resumed>) = 524288 [pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] unlink("./13/binderfs" [pid 5148] munmap(0x7f3e37c00000, 138412032 [pid 5146] <... creat resumed>) = 5 [pid 5068] <... unlink resumed>) = 0 [pid 5148] <... munmap resumed>) = 0 [pid 5068] getdents64(3, [pid 5146] exit_group(0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5146] <... exit_group resumed>) = ? [pid 5068] close(3 [pid 5148] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5148] ioctl(4, LOOP_SET_FD, 3 [pid 5146] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./13" [pid 5067] --- 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 5147] <... write resumed>) = 524288 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] mkdir("./14", 0777 [pid 5067] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5147] munmap(0x7f3e37c00000, 138412032 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5147] <... munmap resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... umount2 resumed>) = 0 [pid 5067] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5147] <... openat resumed>) = 4 [ 82.663480][ T5148] loop1: detected capacity change from 0 to 1024 [pid 5067] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] <... ioctl resumed>) = 0 [pid 5147] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3 [pid 5148] close(3 [pid 5069] <... close resumed>) = 0 [pid 5148] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5149 attached [pid 5148] close(4 [pid 5068] <... ioctl resumed>) = 0 [pid 5149] set_robust_list(0x55555622a660, 24 [pid 5148] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5149 [pid 5067] <... openat resumed>) = 4 [pid 5149] <... set_robust_list resumed>) = 0 [pid 5148] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5149] chdir("./15" [pid 5067] newfstatat(4, "", [pid 5148] <... mkdir resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5148] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5149] <... chdir resumed>) = 0 [pid 5067] close(4 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] close(3 [pid 5067] <... close resumed>) = 0 [pid 5149] <... prctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... rmdir resumed>) = 0 [pid 5067] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./13/binderfs") = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5147] <... ioctl resumed>) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./13") = 0 [pid 5147] close(3) = 0 [pid 5147] close(4) = 0 ./strace-static-x86_64: Process 5150 attached [pid 5147] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5150] set_robust_list(0x55555622a660, 24 [pid 5149] setpgid(0, 0 [pid 5147] <... mkdir resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5150 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5149] <... setpgid resumed>) = 0 [pid 5150] chdir("./14" [pid 5067] mkdir("./14", 0777 [pid 5150] <... chdir resumed>) = 0 [pid 5147] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... mkdir resumed>) = 0 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5150] <... prctl resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... openat resumed>) = 3 [pid 5150] setpgid(0, 0 [pid 5149] <... openat resumed>) = 3 [pid 5150] <... setpgid resumed>) = 0 [pid 5148] <... mount resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] write(3, "1000", 4 [pid 5148] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5147] <... mount resumed>) = 0 [pid 5150] <... openat resumed>) = 3 [pid 5149] <... write resumed>) = 4 [pid 5148] <... openat resumed>) = 3 [pid 5147] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5149] close(3 [pid 5148] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5147] <... openat resumed>) = 3 [ 82.705120][ T5147] loop0: detected capacity change from 0 to 1024 [pid 5150] write(3, "1000", 4 [pid 5149] <... close resumed>) = 0 [pid 5147] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5150] <... write resumed>) = 4 [pid 5149] symlink("/dev/binderfs", "./binderfs" [pid 5148] <... chdir resumed>) = 0 [pid 5147] <... chdir resumed>) = 0 [pid 5150] close(3 [pid 5148] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5150] <... close resumed>) = 0 [pid 5149] <... symlink resumed>) = 0 [pid 5147] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] symlink("/dev/binderfs", "./binderfs" [pid 5148] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5147] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5150] <... symlink resumed>) = 0 [pid 5149] sync( [pid 5148] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5150] sync( [pid 5147] <... open resumed>) = 4 [pid 5147] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] <... ioctl resumed>) = 0 [pid 5148] <... open resumed>) = 4 [pid 5148] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001) = 5 [pid 5147] <... creat resumed>) = 5 [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] exit_group(0 [pid 5147] exit_group(0 [pid 5148] <... exit_group resumed>) = ? [pid 5147] <... exit_group resumed>) = ? [pid 5147] +++ exited with 0 +++ [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5151 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- ./strace-static-x86_64: Process 5151 attached [pid 5150] <... sync resumed>) = 0 [pid 5149] <... sync resumed>) = 0 [pid 5150] memfd_create("syzkaller", 0 [pid 5151] set_robust_list(0x55555622a660, 24 [pid 5149] memfd_create("syzkaller", 0 [pid 5065] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... set_robust_list resumed>) = 0 [pid 5150] <... memfd_create resumed>) = 3 [pid 5149] <... memfd_create resumed>) = 3 [pid 5148] +++ exited with 0 +++ [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] chdir("./14" [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] <... chdir resumed>) = 0 [pid 5150] <... mmap resumed>) = 0x7f3e37c00000 [pid 5065] <... openat resumed>) = 3 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5065] newfstatat(3, "", [pid 5151] <... prctl resumed>) = 0 [pid 5066] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5151] setpgid(0, 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] getdents64(3, [pid 5151] <... setpgid resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] <... openat resumed>) = 3 [pid 5065] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] newfstatat(3, "", [pid 5151] <... openat resumed>) = 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5151] write(3, "1000", 4 [pid 5066] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... write resumed>) = 4 [pid 5151] close(3 [pid 5149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5151] <... close resumed>) = 0 [pid 5151] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5151] sync( [pid 5065] <... umount2 resumed>) = 0 [pid 5065] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5151] <... sync resumed>) = 0 [pid 5065] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] memfd_create("syzkaller", 0 [pid 5065] <... openat resumed>) = 4 [pid 5151] <... memfd_create resumed>) = 3 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5150] <... write resumed>) = 524288 [pid 5065] newfstatat(4, "", [pid 5151] <... mmap resumed>) = 0x7f3e37c00000 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] close(4) = 0 [pid 5065] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5150] munmap(0x7f3e37c00000, 138412032 [pid 5065] <... rmdir resumed>) = 0 [pid 5150] <... munmap resumed>) = 0 [pid 5065] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5149] <... write resumed>) = 524288 [pid 5066] <... umount2 resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5150] <... openat resumed>) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3 [pid 5065] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5149] munmap(0x7f3e37c00000, 138412032 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5149] <... munmap resumed>) = 0 [pid 5065] unlink("./14/binderfs") = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5149] <... openat resumed>) = 4 [pid 5066] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] rmdir("./14" [pid 5149] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5066] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] mkdir("./15", 0777 [pid 5066] newfstatat(4, "", [pid 5065] <... mkdir resumed>) = 0 [pid 5151] <... write resumed>) = 524288 [pid 5150] <... ioctl resumed>) = 0 [pid 5149] <... ioctl resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5151] munmap(0x7f3e37c00000, 138412032 [pid 5150] close(3 [pid 5149] close(3 [pid 5066] getdents64(4, [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5151] <... munmap resumed>) = 0 [pid 5150] <... close resumed>) = 0 [pid 5149] <... close resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5150] close(4 [pid 5066] getdents64(4, [pid 5065] <... openat resumed>) = 3 [pid 5150] <... close resumed>) = 0 [pid 5149] close(4 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5150] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5149] <... close resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5066] close(4) = 0 [pid 5151] <... openat resumed>) = 4 [ 82.923089][ T5150] loop3: detected capacity change from 0 to 1024 [ 82.943883][ T5149] loop4: detected capacity change from 0 to 1024 [pid 5066] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5151] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... rmdir resumed>) = 0 [pid 5150] <... mkdir resumed>) = 0 [pid 5149] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5149] <... mkdir resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./14/binderfs") = 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5066] rmdir("./14") = 0 [pid 5150] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] mkdir("./15", 0777 [pid 5149] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] <... mkdir resumed>) = 0 [pid 5151] <... ioctl resumed>) = 0 [pid 5151] close(3) = 0 [pid 5151] close(4 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5151] <... close resumed>) = 0 [pid 5151] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5149] <... mount resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5151] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5149] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5150] <... mount resumed>) = 0 [pid 5149] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5150] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5149] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] <... openat resumed>) = 3 [pid 5149] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5150] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5149] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5151] <... mount resumed>) = 0 [pid 5150] <... chdir resumed>) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5150] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] <... ioctl resumed>) = 0 [pid 5151] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5149] <... open resumed>) = 4 [pid 5065] close(3) = 0 [pid 5151] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5149] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [ 82.980290][ T5151] loop2: detected capacity change from 0 to 1024 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] <... chdir resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5150] <... open resumed>) = 4 ./strace-static-x86_64: Process 5152 attached [pid 5151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5149] <... creat resumed>) = 5 [pid 5152] set_robust_list(0x55555622a660, 24 [pid 5151] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5150] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5152 [pid 5152] <... set_robust_list resumed>) = 0 [pid 5151] <... open resumed>) = 4 [pid 5149] exit_group(0) = ? [pid 5152] chdir("./15" [pid 5151] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5149] +++ exited with 0 +++ [pid 5152] <... chdir resumed>) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5066] close(3) = 0 [pid 5152] <... prctl resumed>) = 0 [pid 5150] <... creat resumed>) = 5 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] setpgid(0, 0 [pid 5151] <... creat resumed>) = 5 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5152] <... setpgid resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5153 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5150] exit_group(0) = ? ./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x55555622a660, 24 [pid 5152] <... openat resumed>) = 3 [pid 5151] exit_group(0 [pid 5150] +++ exited with 0 +++ [pid 5153] <... set_robust_list resumed>) = 0 [pid 5152] write(3, "1000", 4 [pid 5151] <... exit_group resumed>) = ? [pid 5069] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5152] <... write resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] close(3 [pid 5151] +++ exited with 0 +++ [pid 5069] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5153] chdir("./15" [pid 5152] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5153] <... chdir resumed>) = 0 [pid 5152] symlink("/dev/binderfs", "./binderfs" [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5152] <... symlink resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] newfstatat(3, "", [pid 5067] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5152] sync( [pid 5153] <... prctl resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5153] setpgid(0, 0 [pid 5069] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5067] newfstatat(3, "", [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5153] <... setpgid resumed>) = 0 [pid 5068] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... umount2 resumed>) = 0 [pid 5153] <... symlink resumed>) = 0 [pid 5069] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5153] sync( [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5069] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(4, "", [pid 5068] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] getdents64(4, [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] newfstatat(4, "", [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5069] getdents64(4, [pid 5068] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5069] close(4 [pid 5068] newfstatat(4, "", [pid 5069] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... rmdir resumed>) = 0 [pid 5067] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... rmdir resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5153] <... sync resumed>) = 0 [pid 5152] <... sync resumed>) = 0 [pid 5069] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5153] memfd_create("syzkaller", 0 [pid 5152] memfd_create("syzkaller", 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] unlink("./14/binderfs" [pid 5153] <... memfd_create resumed>) = 3 [pid 5152] <... memfd_create resumed>) = 3 [pid 5069] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5068] getdents64(4, [pid 5067] <... unlink resumed>) = 0 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5153] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] close(4 [pid 5069] unlink("./15/binderfs" [pid 5068] <... close resumed>) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./14" [pid 5068] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] getdents64(3, [pid 5068] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5067] mkdir("./15", 0777 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5069] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5069] rmdir("./15" [pid 5068] unlink("./14/binderfs" [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5068] getdents64(3, [pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./14") = 0 [pid 5069] mkdir("./16", 0777 [pid 5068] mkdir("./15", 0777) = 0 [pid 5152] <... write resumed>) = 524288 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5153] <... write resumed>) = 524288 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5153] munmap(0x7f3e37c00000, 138412032 [pid 5069] <... ioctl resumed>) = 0 [pid 5153] <... munmap resumed>) = 0 [pid 5069] close(3 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] <... openat resumed>) = 4 [pid 5152] munmap(0x7f3e37c00000, 138412032 [pid 5153] ioctl(4, LOOP_SET_FD, 3 [pid 5152] <... munmap resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5152] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x55555622a660, 24) = 0 [pid 5154] chdir("./16") = 0 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5154] setpgid(0, 0) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3) = 0 [pid 5154] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5154 [pid 5153] <... ioctl resumed>) = 0 [pid 5067] close(3 [pid 5153] close(3) = 0 [pid 5067] <... close resumed>) = 0 [pid 5153] close(4 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5154] sync( [pid 5153] <... close resumed>) = 0 [pid 5153] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5155 ./strace-static-x86_64: Process 5155 attached [pid 5153] <... mkdir resumed>) = 0 [pid 5152] <... ioctl resumed>) = 0 [pid 5155] set_robust_list(0x55555622a660, 24) = 0 [pid 5155] chdir("./15" [pid 5154] <... sync resumed>) = 0 [pid 5153] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5152] close(3 [pid 5068] <... ioctl resumed>) = 0 [pid 5155] <... chdir resumed>) = 0 [pid 5154] memfd_create("syzkaller", 0 [pid 5068] close(3 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] <... close resumed>) = 0 [pid 5155] setpgid(0, 0 [pid 5154] <... memfd_create resumed>) = 3 [pid 5152] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5155] <... setpgid resumed>) = 0 [ 83.228324][ T5153] loop1: detected capacity change from 0 to 1024 [ 83.233746][ T5152] loop0: detected capacity change from 0 to 1024 [ 83.249619][ T5075] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5152] close(4./strace-static-x86_64: Process 5156 attached [pid 5155] <... openat resumed>) = 3 [pid 5154] <... mmap resumed>) = 0x7f3e37c00000 [pid 5152] <... close resumed>) = 0 [pid 5156] set_robust_list(0x55555622a660, 24 [pid 5155] write(3, "1000", 4 [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5153] <... mount resumed>) = 0 [pid 5152] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5156 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5155] <... write resumed>) = 4 [pid 5153] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5155] close(3 [pid 5156] chdir("./15" [pid 5155] <... close resumed>) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5152] <... mkdir resumed>) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs" [pid 5156] <... chdir resumed>) = 0 [pid 5155] <... symlink resumed>) = 0 [pid 5153] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5152] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5155] sync( [pid 5154] <... write resumed>) = 524288 [pid 5153] <... chdir resumed>) = 0 [pid 5156] <... prctl resumed>) = 0 [pid 5156] setpgid(0, 0 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5156] <... setpgid resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] munmap(0x7f3e37c00000, 138412032 [pid 5153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] <... openat resumed>) = 3 [pid 5154] <... munmap resumed>) = 0 [pid 5153] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5156] write(3, "1000", 4) = 4 [pid 5152] <... mount resumed>) = 0 [pid 5156] close(3 [pid 5152] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5156] <... close resumed>) = 0 [pid 5152] <... openat resumed>) = 3 [pid 5156] symlink("/dev/binderfs", "./binderfs" [pid 5152] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5156] <... symlink resumed>) = 0 [pid 5156] sync( [pid 5152] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5153] <... open resumed>) = 4 [pid 5152] <... open resumed>) = 4 [pid 5152] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5153] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5154] <... openat resumed>) = 4 [pid 5152] <... creat resumed>) = 5 [pid 5154] ioctl(4, LOOP_SET_FD, 3 [pid 5152] exit_group(0 [pid 5154] <... ioctl resumed>) = 0 [pid 5152] <... exit_group resumed>) = ? [pid 5153] <... creat resumed>) = 5 [pid 5153] exit_group(0 [pid 5152] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5154] close(3 [pid 5153] <... exit_group resumed>) = ? [pid 5154] <... close resumed>) = 0 [pid 5154] close(4 [pid 5065] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5156] <... sync resumed>) = 0 [pid 5065] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5156] memfd_create("syzkaller", 0 [pid 5155] <... sync resumed>) = 0 [pid 5154] <... mkdir resumed>) = 0 [pid 5153] +++ exited with 0 +++ [pid 5065] <... openat resumed>) = 3 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, [pid 5066] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 3 [ 83.409484][ T5154] loop4: detected capacity change from 0 to 1024 [pid 5066] newfstatat(3, "", [pid 5156] <... memfd_create resumed>) = 3 [pid 5155] memfd_create("syzkaller", 0 [pid 5154] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5156] <... mmap resumed>) = 0x7f3e37c00000 [pid 5155] <... memfd_create resumed>) = 3 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5154] <... mount resumed>) = 0 [pid 5154] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5154] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5154] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5154] <... open resumed>) = 4 [pid 5065] <... umount2 resumed>) = 0 [pid 5154] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5154] <... creat resumed>) = 5 [pid 5065] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5154] exit_group(0 [pid 5065] <... openat resumed>) = 4 [pid 5154] <... exit_group resumed>) = ? [pid 5065] newfstatat(4, "", [pid 5156] <... write resumed>) = 524288 [pid 5154] +++ exited with 0 +++ [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, [pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] close(4) = 0 [pid 5065] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5065] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5156] munmap(0x7f3e37c00000, 138412032 [pid 5155] <... write resumed>) = 524288 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5066] <... umount2 resumed>) = 0 [pid 5066] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5156] <... munmap resumed>) = 0 [pid 5155] munmap(0x7f3e37c00000, 138412032 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5066] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... restart_syscall resumed>) = 0 [pid 5156] <... openat resumed>) = 4 [pid 5155] <... munmap resumed>) = 0 [pid 5069] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] unlink("./15/binderfs") = 0 [pid 5066] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5066] <... openat resumed>) = 4 [pid 5156] ioctl(4, LOOP_SET_FD, 3 [pid 5069] newfstatat(3, "", [pid 5066] newfstatat(4, "", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] getdents64(4, [pid 5065] close(3 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./15") = 0 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4 [pid 5065] mkdir("./16", 0777 [pid 5066] <... close resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5066] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5066] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./15/binderfs") = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] getdents64(3, [pid 5156] <... ioctl resumed>) = 0 [pid 5155] <... openat resumed>) = 4 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5156] close(3 [pid 5155] ioctl(4, LOOP_SET_FD, 3 [pid 5069] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(3) = 0 [pid 5066] rmdir("./15") = 0 [pid 5156] <... close resumed>) = 0 [pid 5155] <... ioctl resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5069] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] mkdir("./16", 0777 [pid 5156] close(4 [pid 5155] close(3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5069] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5156] <... close resumed>) = 0 [pid 5155] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] close(3 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5155] close(4 [pid 5156] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5155] <... close resumed>) = 0 ./strace-static-x86_64: Process 5157 attached [pid 5156] <... mkdir resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5157] set_robust_list(0x55555622a660, 24 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5157 [pid 5069] newfstatat(4, "", [pid 5155] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5157] <... set_robust_list resumed>) = 0 [pid 5155] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5155] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5157] chdir("./16" [ 83.557011][ T5156] loop3: detected capacity change from 0 to 1024 [ 83.566498][ T5155] loop2: detected capacity change from 0 to 1024 [pid 5069] getdents64(4, [pid 5156] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5155] <... mount resumed>) = 0 [pid 5155] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5155] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5157] <... chdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5155] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] close(4 [pid 5157] <... prctl resumed>) = 0 [pid 5155] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5157] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 5156] <... mount resumed>) = 0 [pid 5157] <... setpgid resumed>) = 0 [pid 5156] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5156] <... openat resumed>) = 3 [pid 5156] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5155] <... open resumed>) = 4 [pid 5069] <... rmdir resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5155] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] <... openat resumed>) = 3 [pid 5156] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5157] write(3, "1000", 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5157] <... write resumed>) = 4 [pid 5069] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5157] close(3) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs" [pid 5069] unlink("./16/binderfs" [pid 5157] <... symlink resumed>) = 0 [pid 5156] <... open resumed>) = 4 [pid 5069] <... unlink resumed>) = 0 [pid 5157] sync( [pid 5069] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5155] <... creat resumed>) = 5 [pid 5069] close(3 [pid 5066] <... ioctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./16" [pid 5156] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5155] exit_group(0 [pid 5066] close(3 [pid 5156] <... creat resumed>) = 5 [pid 5155] <... exit_group resumed>) = ? [pid 5069] <... rmdir resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5069] mkdir("./17", 0777 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached [pid 5155] +++ exited with 0 +++ [pid 5069] <... mkdir resumed>) = 0 [pid 5158] set_robust_list(0x55555622a660, 24 [pid 5157] <... sync resumed>) = 0 [pid 5156] exit_group(0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5158 [pid 5157] memfd_create("syzkaller", 0 [pid 5156] <... exit_group resumed>) = ? [pid 5157] <... memfd_create resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5067] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5157] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] <... openat resumed>) = 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... umount2 resumed>) = 0 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] <... write resumed>) = 524288 [pid 5156] +++ exited with 0 +++ [pid 5067] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5158] chdir("./16" [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] <... chdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5157] munmap(0x7f3e37c00000, 138412032 [pid 5068] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5067] newfstatat(4, "", [pid 5068] newfstatat(3, "", [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] <... munmap resumed>) = 0 [pid 5068] getdents64(3, [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] close(4) = 0 [pid 5158] <... prctl resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] setpgid(0, 0 [pid 5157] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5158] <... setpgid resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5157] ioctl(4, LOOP_SET_FD, 3 [pid 5068] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5157] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5069] close(3 [pid 5068] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... rmdir resumed>) = 0 [pid 5158] <... openat resumed>) = 3 [pid 5158] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5159 attached [pid 5158] close(3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] <... close resumed>) = 0 [pid 5159] set_robust_list(0x55555622a660, 24 [pid 5068] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5159] <... set_robust_list resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5159] chdir("./17" [pid 5158] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5159 [pid 5068] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5067] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5159] <... chdir resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] unlink("./15/binderfs" [pid 5159] <... prctl resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5068] getdents64(3, [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5159] <... openat resumed>) = 3 [pid 5068] close(3) = 0 [pid 5159] write(3, "1000", 4 [pid 5068] rmdir("./15" [pid 5159] <... write resumed>) = 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5159] close(3) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs" [pid 5158] <... symlink resumed>) = 0 [pid 5068] mkdir("./16", 0777 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5159] <... symlink resumed>) = 0 [pid 5158] sync( [pid 5157] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] unlink("./15/binderfs" [pid 5159] sync( [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5159] <... sync resumed>) = 0 [pid 5158] <... sync resumed>) = 0 [pid 5157] <... close resumed>) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5159] memfd_create("syzkaller", 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5157] close(4 [pid 5068] <... openat resumed>) = 3 [pid 5067] getdents64(3, [pid 5159] <... memfd_create resumed>) = 3 [pid 5158] <... memfd_create resumed>) = 3 [pid 5157] <... close resumed>) = 0 [ 83.728728][ T5157] loop0: detected capacity change from 0 to 1024 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5157] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5159] <... mmap resumed>) = 0x7f3e37c00000 [pid 5158] <... mmap resumed>) = 0x7f3e37c00000 [pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5157] <... mkdir resumed>) = 0 [pid 5067] close(3 [pid 5157] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... close resumed>) = 0 [pid 5067] rmdir("./15" [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... rmdir resumed>) = 0 [pid 5067] mkdir("./16", 0777) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5157] <... mount resumed>) = 0 [pid 5157] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5067] <... openat resumed>) = 3 [pid 5157] <... openat resumed>) = 3 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5158] <... write resumed>) = 524288 [pid 5157] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5157] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5159] <... write resumed>) = 524288 [pid 5159] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5157] <... open resumed>) = 4 [pid 5159] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5158] munmap(0x7f3e37c00000, 138412032 [pid 5157] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5159] ioctl(4, LOOP_SET_FD, 3 [pid 5158] <... munmap resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5157] <... creat resumed>) = 5 [pid 5158] <... openat resumed>) = 4 [pid 5157] exit_group(0) = ? [pid 5159] <... ioctl resumed>) = 0 [pid 5158] ioctl(4, LOOP_SET_FD, 3 [pid 5157] +++ exited with 0 +++ [pid 5159] close(3 [pid 5068] <... ioctl resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5159] <... close resumed>) = 0 [pid 5159] close(4 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5159] <... close resumed>) = 0 [pid 5065] <... restart_syscall resumed>) = 0 [pid 5065] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5159] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] close(3 [pid 5065] newfstatat(3, "", [pid 5068] <... close resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, [pid 5159] <... mkdir resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5160 attached [pid 5159] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5160] set_robust_list(0x55555622a660, 24) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5160 [pid 5067] <... ioctl resumed>) = 0 [pid 5065] <... umount2 resumed>) = 0 [pid 5160] chdir("./16" [pid 5159] <... mount resumed>) = 0 [pid 5158] <... ioctl resumed>) = 0 [pid 5067] close(3 [pid 5160] <... chdir resumed>) = 0 [ 83.833263][ T5159] loop4: detected capacity change from 0 to 1024 [ 83.845824][ T5158] loop1: detected capacity change from 0 to 1024 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5158] close(3 [pid 5067] <... close resumed>) = 0 [pid 5065] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] <... prctl resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5160] setpgid(0, 0 [pid 5158] close(4 [pid 5160] <... setpgid resumed>) = 0 [pid 5159] <... openat resumed>) = 3 [pid 5158] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5158] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5160] <... openat resumed>) = 3 [pid 5159] <... chdir resumed>) = 0 [pid 5158] <... mkdir resumed>) = 0 [pid 5065] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5160] write(3, "1000", 4 [pid 5159] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5158] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5065] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] <... write resumed>) = 4 [pid 5159] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5161 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5160] close(3 [pid 5159] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5161 attached [pid 5160] <... close resumed>) = 0 [pid 5159] <... open resumed>) = 4 [pid 5158] <... mount resumed>) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5161] set_robust_list(0x55555622a660, 24 [pid 5160] symlink("/dev/binderfs", "./binderfs" [pid 5159] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5158] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5065] newfstatat(4, "", [pid 5161] <... set_robust_list resumed>) = 0 [pid 5160] <... symlink resumed>) = 0 [pid 5158] <... openat resumed>) = 3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5159] <... creat resumed>) = 5 [pid 5159] exit_group(0 [pid 5065] getdents64(4, [pid 5161] chdir("./16" [pid 5159] <... exit_group resumed>) = ? [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5159] +++ exited with 0 +++ [pid 5158] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] getdents64(4, [pid 5158] <... chdir resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5160] sync( [pid 5158] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5065] close(4 [pid 5158] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5065] <... close resumed>) = 0 [pid 5158] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5161] <... chdir resumed>) = 0 [pid 5069] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] <... prctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5161] setpgid(0, 0) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5065] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(3, "", [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5158] <... open resumed>) = 4 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5161] <... openat resumed>) = 3 [pid 5065] unlink("./16/binderfs" [pid 5161] write(3, "1000", 4 [pid 5158] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] getdents64(3, [pid 5065] <... unlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5161] <... write resumed>) = 4 [pid 5069] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] close(3 [pid 5065] getdents64(3, [pid 5161] <... close resumed>) = 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs" [pid 5065] close(3 [pid 5161] <... symlink resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./16" [pid 5161] sync( [pid 5069] <... umount2 resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5160] <... sync resumed>) = 0 [pid 5158] <... creat resumed>) = 5 [pid 5160] memfd_create("syzkaller", 0 [pid 5069] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] mkdir("./17", 0777 [pid 5160] <... memfd_create resumed>) = 3 [pid 5158] exit_group(0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] <... exit_group resumed>) = ? [pid 5069] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... mkdir resumed>) = 0 [pid 5160] <... mmap resumed>) = 0x7f3e37c00000 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... openat resumed>) = 4 [pid 5069] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... openat resumed>) = 3 [pid 5069] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5069] close(4) = 0 [pid 5158] +++ exited with 0 +++ [pid 5069] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5161] <... sync resumed>) = 0 [pid 5161] memfd_create("syzkaller", 0) = 3 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... rmdir resumed>) = 0 [pid 5066] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5160] <... write resumed>) = 524288 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... openat resumed>) = 3 [pid 5160] munmap(0x7f3e37c00000, 138412032 [pid 5066] newfstatat(3, "", [pid 5069] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] unlink("./17/binderfs" [pid 5160] <... munmap resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5066] getdents64(3, [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5160] <... openat resumed>) = 4 [pid 5069] close(3 [pid 5160] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... close resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] rmdir("./17") = 0 [pid 5069] mkdir("./18", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] <... write resumed>) = 524288 [pid 5161] munmap(0x7f3e37c00000, 138412032 [pid 5160] <... ioctl resumed>) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5066] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] close(3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] <... munmap resumed>) = 0 [pid 5160] <... close resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5160] close(4) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5066] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(3 [pid 5161] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5160] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5161] <... openat resumed>) = 4 [pid 5066] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5161] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... openat resumed>) = 4 [ 84.022079][ T5160] loop3: detected capacity change from 0 to 1024 [pid 5160] <... mkdir resumed>) = 0 [pid 5160] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5161] <... ioctl resumed>) = 0 [pid 5066] newfstatat(4, "", ./strace-static-x86_64: Process 5162 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5161] close(3 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5162 [pid 5162] set_robust_list(0x55555622a660, 24 [pid 5161] <... close resumed>) = 0 [pid 5066] getdents64(4, [pid 5162] <... set_robust_list resumed>) = 0 [pid 5161] close(4 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5162] chdir("./17" [pid 5161] <... close resumed>) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5161] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] close(4 [pid 5162] <... chdir resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5162] <... prctl resumed>) = 0 [pid 5162] setpgid(0, 0 [pid 5160] <... mount resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5162] <... setpgid resumed>) = 0 [pid 5066] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5161] <... mkdir resumed>) = 0 [pid 5160] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5162] <... openat resumed>) = 3 [pid 5161] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5160] <... openat resumed>) = 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5160] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5162] write(3, "1000", 4 [pid 5160] <... chdir resumed>) = 0 [pid 5066] unlink("./16/binderfs" [pid 5162] <... write resumed>) = 4 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5162] close(3 [pid 5160] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... ioctl resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5162] <... close resumed>) = 0 [pid 5162] symlink("/dev/binderfs", "./binderfs" [pid 5160] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5162] <... symlink resumed>) = 0 [pid 5069] close(3 [pid 5066] rmdir("./16" [pid 5160] <... open resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5160] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] mkdir("./17", 0777 [pid 5160] <... creat resumed>) = 5 [pid 5066] <... mkdir resumed>) = 0 [ 84.067343][ T5161] loop2: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5163 attached [pid 5162] sync( [pid 5161] <... mount resumed>) = 0 [pid 5160] exit_group(0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5163] set_robust_list(0x55555622a660, 24 [pid 5161] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5160] <... exit_group resumed>) = ? [pid 5066] <... openat resumed>) = 3 [pid 5161] <... openat resumed>) = 3 [pid 5161] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5161] <... chdir resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5163 [pid 5161] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5161] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5160] +++ exited with 0 +++ [pid 5163] <... set_robust_list resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5163] chdir("./18") = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] <... open resumed>) = 4 [pid 5163] <... prctl resumed>) = 0 [pid 5163] setpgid(0, 0 [pid 5161] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... setpgid resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] <... sync resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [pid 5163] write(3, "1000", 4 [pid 5162] memfd_create("syzkaller", 0 [pid 5163] <... write resumed>) = 4 [pid 5163] close(3 [pid 5162] <... memfd_create resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5163] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5163] symlink("/dev/binderfs", "./binderfs" [pid 5068] newfstatat(3, "", [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5163] <... symlink resumed>) = 0 [pid 5162] <... mmap resumed>) = 0x7f3e37c00000 [pid 5161] <... creat resumed>) = 5 [pid 5068] getdents64(3, [pid 5163] sync( [pid 5161] exit_group(0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] <... exit_group resumed>) = ? [pid 5161] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = 0 [pid 5163] <... sync resumed>) = 0 [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5163] memfd_create("syzkaller", 0) = 3 [pid 5066] <... ioctl resumed>) = 0 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5068] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5162] <... write resumed>) = 524288 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... openat resumed>) = 3 [pid 5163] <... write resumed>) = 524288 [pid 5068] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] newfstatat(3, "", [pid 5068] <... openat resumed>) = 4 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] close(3 [pid 5068] newfstatat(4, "", [pid 5067] getdents64(3, [pid 5066] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] getdents64(4, [pid 5067] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5163] munmap(0x7f3e37c00000, 138412032 [pid 5068] getdents64(4, [pid 5163] <... munmap resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5164 [pid 5068] close(4) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5164 attached [pid 5163] <... openat resumed>) = 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5164] set_robust_list(0x55555622a660, 24) = 0 [pid 5068] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = 0 [pid 5164] chdir("./17" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] <... chdir resumed>) = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5164] <... prctl resumed>) = 0 [pid 5163] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5164] setpgid(0, 0 [pid 5162] munmap(0x7f3e37c00000, 138412032 [pid 5164] <... setpgid resumed>) = 0 [pid 5162] <... munmap resumed>) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] unlink("./16/binderfs" [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] write(3, "1000", 4 [pid 5162] <... openat resumed>) = 4 [pid 5164] <... write resumed>) = 4 [pid 5162] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... unlink resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5164] close(3 [pid 5162] <... ioctl resumed>) = 0 [pid 5068] getdents64(3, [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5164] <... close resumed>) = 0 [pid 5068] close(3 [pid 5164] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5163] <... ioctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5164] sync( [pid 5163] close(3 [pid 5068] rmdir("./16" [pid 5163] <... close resumed>) = 0 [pid 5163] close(4 [pid 5068] <... rmdir resumed>) = 0 [pid 5163] <... close resumed>) = 0 [pid 5068] mkdir("./17", 0777 [pid 5067] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5163] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5163] <... mkdir resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5163] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] <... openat resumed>) = 3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./16/binderfs") = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] close(3) = 0 [pid 5067] rmdir("./16") = 0 [pid 5067] mkdir("./17", 0777 [pid 5163] <... mount resumed>) = 0 [pid 5162] close(3 [pid 5163] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5164] <... sync resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [pid 5162] <... close resumed>) = 0 [pid 5164] memfd_create("syzkaller", 0 [pid 5163] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5162] close(4 [pid 5067] <... mkdir resumed>) = 0 [pid 5164] <... memfd_create resumed>) = 3 [pid 5163] <... chdir resumed>) = 0 [pid 5162] <... close resumed>) = 0 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5163] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5162] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5164] <... mmap resumed>) = 0x7f3e37c00000 [pid 5163] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5162] <... mkdir resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5163] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] ioctl(3, LOOP_CLR_FD [ 84.226149][ T5163] loop4: detected capacity change from 0 to 1024 [ 84.239231][ T5162] loop0: detected capacity change from 0 to 1024 [pid 5162] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5162] <... mount resumed>) = 0 [pid 5162] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5164] <... write resumed>) = 524288 [pid 5163] <... open resumed>) = 4 [pid 5162] <... openat resumed>) = 3 [pid 5163] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5162] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5162] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5163] <... creat resumed>) = 5 [pid 5068] <... ioctl resumed>) = 0 [pid 5163] exit_group(0) = ? [pid 5163] +++ exited with 0 +++ [pid 5162] <... open resumed>) = 4 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5069] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5162] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] close(3 [pid 5067] <... ioctl resumed>) = 0 [pid 5164] munmap(0x7f3e37c00000, 138412032 [pid 5069] newfstatat(3, "", [pid 5068] <... close resumed>) = 0 [pid 5164] <... munmap resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] close(3 [pid 5069] getdents64(3, [pid 5162] <... creat resumed>) = 5 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] <... close resumed>) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5069] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] ioctl(4, LOOP_SET_FD, 3 [pid 5162] exit_group(0./strace-static-x86_64: Process 5165 attached [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5165 [pid 5162] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5166 attached [pid 5165] set_robust_list(0x55555622a660, 24 [pid 5162] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] <... ioctl resumed>) = 0 [pid 5164] close(3) = 0 [pid 5164] close(4) = 0 [pid 5164] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5166] set_robust_list(0x55555622a660, 24 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5164] <... mkdir resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5166 [pid 5166] <... set_robust_list resumed>) = 0 [pid 5164] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5166] chdir("./17") = 0 [pid 5165] chdir("./17" [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] <... chdir resumed>) = 0 [pid 5166] setpgid(0, 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5166] <... setpgid resumed>) = 0 [pid 5165] <... prctl resumed>) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5166] <... openat resumed>) = 3 [pid 5165] write(3, "1000", 4 [pid 5164] <... mount resumed>) = 0 [pid 5166] write(3, "1000", 4 [pid 5165] <... write resumed>) = 4 [pid 5164] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] <... write resumed>) = 4 [pid 5165] close(3 [pid 5164] <... openat resumed>) = 3 [pid 5166] close(3 [pid 5165] <... close resumed>) = 0 [pid 5164] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] <... close resumed>) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5164] <... chdir resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5164] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5166] symlink("/dev/binderfs", "./binderfs" [pid 5165] <... symlink resumed>) = 0 [pid 5164] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5165] sync( [pid 5164] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5166] <... symlink resumed>) = 0 [pid 5069] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 84.345526][ T5164] loop1: detected capacity change from 0 to 1024 [pid 5166] sync( [pid 5164] <... open resumed>) = 4 [pid 5065] <... umount2 resumed>) = 0 [pid 5069] newfstatat(4, "", [pid 5065] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5065] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5065] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5069] close(4 [pid 5065] newfstatat(4, "", [pid 5069] <... close resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5065] close(4) = 0 [pid 5065] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5065] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5065] unlink("./17/binderfs" [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5164] <... creat resumed>) = 5 [pid 5069] unlink("./18/binderfs" [pid 5165] <... sync resumed>) = 0 [pid 5164] exit_group(0 [pid 5069] <... unlink resumed>) = 0 [pid 5065] getdents64(3, [pid 5166] <... sync resumed>) = 0 [pid 5165] memfd_create("syzkaller", 0 [pid 5164] <... exit_group resumed>) = ? [pid 5069] getdents64(3, [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5166] memfd_create("syzkaller", 0 [pid 5164] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3 [pid 5165] <... memfd_create resumed>) = 3 [pid 5069] close(3 [pid 5065] <... close resumed>) = 0 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... close resumed>) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] rmdir("./17" [pid 5165] <... mmap resumed>) = 0x7f3e37c00000 [pid 5069] rmdir("./18" [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5065] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5066] <... restart_syscall resumed>) = 0 [pid 5166] <... memfd_create resumed>) = 3 [pid 5069] mkdir("./19", 0777 [pid 5065] mkdir("./18", 0777 [pid 5069] <... mkdir resumed>) = 0 [pid 5066] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... mkdir resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5066] newfstatat(3, "", [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5066] getdents64(3, [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5166] <... mmap resumed>) = 0x7f3e37c00000 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5167 [pid 5066] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5167 attached [pid 5165] <... write resumed>) = 524288 [pid 5167] set_robust_list(0x55555622a660, 24 [pid 5066] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5167] <... set_robust_list resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5167] chdir("./19" [pid 5165] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5165] <... munmap resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5167] <... chdir resumed>) = 0 [pid 5066] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5167] <... prctl resumed>) = 0 [pid 5165] <... openat resumed>) = 4 [pid 5066] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5167] setpgid(0, 0 [pid 5165] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... openat resumed>) = 4 [pid 5167] <... setpgid resumed>) = 0 [pid 5166] <... write resumed>) = 524288 [pid 5066] newfstatat(4, "", [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5167] <... openat resumed>) = 3 [pid 5166] <... munmap resumed>) = 0 [pid 5066] getdents64(4, [pid 5166] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] close(3 [pid 5167] write(3, "1000", 4 [pid 5166] <... openat resumed>) = 4 [pid 5066] getdents64(4, [pid 5065] <... close resumed>) = 0 [pid 5166] ioctl(4, LOOP_SET_FD, 3 [pid 5167] <... write resumed>) = 4 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] close(4 [pid 5167] close(3 [pid 5066] <... close resumed>) = 0 [pid 5167] <... close resumed>) = 0 [pid 5066] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5167] symlink("/dev/binderfs", "./binderfs" [pid 5066] <... rmdir resumed>) = 0 [pid 5167] <... symlink resumed>) = 0 [pid 5066] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5167] sync( [pid 5066] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5168 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./17/binderfs") = 0 ./strace-static-x86_64: Process 5168 attached [pid 5165] <... ioctl resumed>) = 0 [pid 5066] getdents64(3, [pid 5168] set_robust_list(0x55555622a660, 24 [pid 5165] close(3 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5167] <... sync resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5066] close(3 [pid 5168] chdir("./18" [pid 5167] memfd_create("syzkaller", 0 [pid 5165] close(4 [pid 5066] <... close resumed>) = 0 [pid 5168] <... chdir resumed>) = 0 [pid 5167] <... memfd_create resumed>) = 3 [pid 5165] <... close resumed>) = 0 [pid 5066] rmdir("./17" [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] <... rmdir resumed>) = 0 [pid 5168] <... prctl resumed>) = 0 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] <... ioctl resumed>) = 0 [pid 5165] <... mkdir resumed>) = 0 [pid 5168] setpgid(0, 0 [pid 5167] <... mmap resumed>) = 0x7f3e37c00000 [pid 5166] close(3 [pid 5066] mkdir("./18", 0777 [pid 5168] <... setpgid resumed>) = 0 [pid 5166] <... close resumed>) = 0 [pid 5165] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] <... mkdir resumed>) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] close(4 [pid 5168] <... openat resumed>) = 3 [pid 5166] <... close resumed>) = 0 [pid 5168] write(3, "1000", 4) = 4 [pid 5165] <... mount resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5168] close(3 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5166] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5165] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5168] <... close resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5168] symlink("/dev/binderfs", "./binderfs" [pid 5165] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5168] <... symlink resumed>) = 0 [pid 5166] <... mkdir resumed>) = 0 [ 84.509788][ T5165] loop3: detected capacity change from 0 to 1024 [ 84.533046][ T5166] loop2: detected capacity change from 0 to 1024 [pid 5165] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5168] sync( [pid 5167] <... write resumed>) = 524288 [pid 5165] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5166] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5165] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5165] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5165] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5167] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5165] <... creat resumed>) = 5 [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5168] <... sync resumed>) = 0 [pid 5166] <... mount resumed>) = 0 [pid 5165] exit_group(0 [pid 5066] <... ioctl resumed>) = 0 [pid 5168] memfd_create("syzkaller", 0 [pid 5167] ioctl(4, LOOP_SET_FD, 3 [pid 5168] <... memfd_create resumed>) = 3 [pid 5165] <... exit_group resumed>) = ? [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5165] +++ exited with 0 +++ [pid 5166] <... openat resumed>) = 3 [pid 5166] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5166] <... chdir resumed>) = 0 [pid 5168] <... mmap resumed>) = 0x7f3e37c00000 [pid 5166] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... restart_syscall resumed>) = 0 [pid 5166] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5166] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x55555622a660, 24 [pid 5166] <... open resumed>) = 4 [pid 5068] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... set_robust_list resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5169 [pid 5169] chdir("./18" [pid 5068] <... openat resumed>) = 3 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5169] <... chdir resumed>) = 0 [pid 5068] newfstatat(3, "", [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5169] <... prctl resumed>) = 0 [pid 5167] <... ioctl resumed>) = 0 [pid 5166] <... creat resumed>) = 5 [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5169] setpgid(0, 0 [pid 5167] close(3 [pid 5068] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... setpgid resumed>) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] <... close resumed>) = 0 [pid 5167] close(4) = 0 [pid 5167] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5166] exit_group(0 [pid 5169] <... openat resumed>) = 3 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3 [pid 5168] <... write resumed>) = 524288 [pid 5166] <... exit_group resumed>) = ? [pid 5169] <... close resumed>) = 0 [pid 5169] symlink("/dev/binderfs", "./binderfs" [pid 5168] munmap(0x7f3e37c00000, 138412032 [pid 5169] <... symlink resumed>) = 0 [pid 5168] <... munmap resumed>) = 0 [pid 5169] sync( [pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5168] ioctl(4, LOOP_SET_FD, 3 [pid 5166] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [ 84.631607][ T5167] loop4: detected capacity change from 0 to 1024 [pid 5167] <... mkdir resumed>) = 0 [pid 5068] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] <... sync resumed>) = 0 [pid 5168] <... ioctl resumed>) = 0 [pid 5167] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5169] memfd_create("syzkaller", 0 [pid 5168] close(3 [pid 5068] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] getdents64(3, [pid 5168] <... close resumed>) = 0 [pid 5168] close(4) = 0 [pid 5168] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... memfd_create resumed>) = 3 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5168] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5169] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5168] <... mount resumed>) = 0 [pid 5168] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5168] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5067] <... umount2 resumed>) = 0 [pid 5068] newfstatat(4, "", [pid 5168] <... open resumed>) = 4 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5169] <... write resumed>) = 524288 [pid 5067] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5168] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... close resumed>) = 0 [ 84.687675][ T5168] loop0: detected capacity change from 0 to 1024 [pid 5068] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5167] <... mount resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5167] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5168] <... creat resumed>) = 5 [pid 5167] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5169] munmap(0x7f3e37c00000, 138412032 [pid 5167] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5067] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... munmap resumed>) = 0 [pid 5168] exit_group(0 [pid 5167] <... chdir resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5168] <... exit_group resumed>) = ? [pid 5167] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] unlink("./17/binderfs" [pid 5067] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5169] <... openat resumed>) = 4 [pid 5168] +++ exited with 0 +++ [pid 5167] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] <... unlink resumed>) = 0 [pid 5169] ioctl(4, LOOP_SET_FD, 3 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5169] <... ioctl resumed>) = 0 [pid 5167] <... open resumed>) = 4 [pid 5068] getdents64(3, [pid 5067] <... openat resumed>) = 4 [pid 5065] restart_syscall(<... resuming interrupted clone ...> [pid 5169] close(3 [pid 5167] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] newfstatat(4, "", [pid 5065] <... restart_syscall resumed>) = 0 [pid 5169] <... close resumed>) = 0 [pid 5068] close(3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] getdents64(4, [pid 5068] rmdir("./17" [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... rmdir resumed>) = 0 [pid 5169] close(4 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... close resumed>) = 0 [pid 5167] <... creat resumed>) = 5 [pid 5068] mkdir("./18", 0777 [pid 5067] close(4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5167] exit_group(0 [pid 5065] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", [pid 5068] <... mkdir resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5169] <... mkdir resumed>) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] <... close resumed>) = 0 [pid 5065] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5167] <... exit_group resumed>) = ? [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5067] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] <... rmdir resumed>) = 0 [pid 5169] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5167] +++ exited with 0 +++ [pid 5067] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./17/binderfs", [ 84.762987][ T5169] loop1: detected capacity change from 0 to 1024 [pid 5069] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5169] <... mount resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... umount2 resumed>) = 0 [pid 5169] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5067] unlink("./17/binderfs" [pid 5169] <... openat resumed>) = 3 [pid 5069] newfstatat(3, "", [pid 5067] <... unlink resumed>) = 0 [pid 5065] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] getdents64(3, [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 5067] close(3 [pid 5065] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5067] <... close resumed>) = 0 [pid 5169] <... chdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5067] rmdir("./17" [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5065] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5169] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] newfstatat(4, "", [pid 5067] mkdir("./18", 0777 [pid 5069] newfstatat(4, "", [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5065] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5169] <... open resumed>) = 4 [pid 5069] getdents64(4, [pid 5065] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] close(4 [pid 5069] <... close resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5065] <... close resumed>) = 0 [pid 5069] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... rmdir resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5068] close(3) = 0 [pid 5169] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5065] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5170 attached [pid 5169] <... creat resumed>) = 5 [pid 5069] unlink("./19/binderfs" [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5170] set_robust_list(0x55555622a660, 24 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5170 [pid 5065] unlink("./18/binderfs" [pid 5169] exit_group(0 [pid 5170] <... set_robust_list resumed>) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5169] <... exit_group resumed>) = ? [pid 5170] chdir("./18" [pid 5069] getdents64(3, [pid 5170] <... chdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] getdents64(3, [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] close(3 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5170] <... prctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5065] close(3 [pid 5170] setpgid(0, 0 [pid 5069] rmdir("./19" [pid 5065] <... close resumed>) = 0 [pid 5170] <... setpgid resumed>) = 0 [pid 5169] +++ exited with 0 +++ [pid 5069] <... rmdir resumed>) = 0 [pid 5065] rmdir("./18" [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5170] write(3, "1000", 4 [pid 5069] mkdir("./20", 0777 [pid 5067] close(3 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] mkdir("./19", 0777 [pid 5170] <... write resumed>) = 4 [pid 5069] <... mkdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5066] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5170] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5170] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... mkdir resumed>) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs" [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5066] <... openat resumed>) = 3 [pid 5170] <... symlink resumed>) = 0 [pid 5170] sync(./strace-static-x86_64: Process 5171 attached [pid 5066] newfstatat(3, "", [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5171] set_robust_list(0x55555622a660, 24) = 0 [pid 5066] getdents64(3, [pid 5065] <... openat resumed>) = 3 [pid 5171] chdir("./18" [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5171 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5171] <... chdir resumed>) = 0 [pid 5066] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5170] <... sync resumed>) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5171] sync( [pid 5066] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5170] memfd_create("syzkaller", 0 [pid 5066] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5170] <... memfd_create resumed>) = 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] <... sync resumed>) = 0 [pid 5170] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5171] memfd_create("syzkaller", 0 [pid 5066] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5171] <... memfd_create resumed>) = 3 [pid 5066] <... openat resumed>) = 4 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... ioctl resumed>) = 0 [pid 5065] <... ioctl resumed>) = 0 [pid 5171] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5066] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5066] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./18/binderfs") = 0 [pid 5066] getdents64(3, [pid 5069] close(3 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3 [pid 5069] <... close resumed>) = 0 [pid 5066] close(3 [pid 5065] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... close resumed>) = 0 [pid 5066] rmdir("./18") = 0 [pid 5171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 5172 attached ./strace-static-x86_64: Process 5173 attached ) = 524288 [pid 5170] <... write resumed>) = 524288 [pid 5066] mkdir("./19", 0777 [pid 5172] set_robust_list(0x55555622a660, 24 [pid 5173] set_robust_list(0x55555622a660, 24) = 0 [pid 5173] chdir("./19") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5170] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... mkdir resumed>) = 0 [pid 5173] setpgid(0, 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5172 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5173 [pid 5172] <... set_robust_list resumed>) = 0 [pid 5173] <... setpgid resumed>) = 0 [pid 5170] <... munmap resumed>) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5172] chdir("./20" [pid 5173] <... openat resumed>) = 3 [pid 5170] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... openat resumed>) = 3 [pid 5173] write(3, "1000", 4 [pid 5172] <... chdir resumed>) = 0 [pid 5173] <... write resumed>) = 4 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5173] close(3 [pid 5172] <... prctl resumed>) = 0 [pid 5173] <... close resumed>) = 0 [pid 5172] setpgid(0, 0 [pid 5173] symlink("/dev/binderfs", "./binderfs" [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5172] <... setpgid resumed>) = 0 [pid 5171] munmap(0x7f3e37c00000, 138412032 [pid 5170] <... openat resumed>) = 4 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5173] <... symlink resumed>) = 0 [pid 5171] <... munmap resumed>) = 0 [pid 5170] ioctl(4, LOOP_SET_FD, 3 [pid 5172] <... openat resumed>) = 3 [pid 5172] write(3, "1000", 4 [pid 5173] sync( [pid 5171] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5172] <... write resumed>) = 4 [pid 5171] <... openat resumed>) = 4 [pid 5172] close(3) = 0 [pid 5171] ioctl(4, LOOP_SET_FD, 3 [pid 5172] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5172] sync() = 0 [pid 5173] <... sync resumed>) = 0 [pid 5171] <... ioctl resumed>) = 0 [pid 5170] <... ioctl resumed>) = 0 [pid 5172] memfd_create("syzkaller", 0 [pid 5173] memfd_create("syzkaller", 0 [pid 5171] close(3 [pid 5170] close(3 [pid 5171] <... close resumed>) = 0 [pid 5170] <... close resumed>) = 0 [pid 5172] <... memfd_create resumed>) = 3 [pid 5173] <... memfd_create resumed>) = 3 [pid 5171] close(4 [pid 5170] close(4 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5170] <... close resumed>) = 0 [pid 5172] <... mmap resumed>) = 0x7f3e37c00000 [pid 5173] <... mmap resumed>) = 0x7f3e37c00000 [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5171] <... close resumed>) = 0 [pid 5170] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5066] <... ioctl resumed>) = 0 [pid 5170] <... mkdir resumed>) = 0 [pid 5170] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5171] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [ 85.006602][ T5170] loop3: detected capacity change from 0 to 1024 [ 85.011203][ T5171] loop2: detected capacity change from 0 to 1024 [pid 5173] <... write resumed>) = 524288 [pid 5171] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] close(3) = 0 [pid 5173] munmap(0x7f3e37c00000, 138412032 [pid 5172] <... write resumed>) = 524288 [pid 5173] <... munmap resumed>) = 0 [pid 5170] <... mount resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5172] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5170] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5172] <... openat resumed>) = 4 [pid 5173] <... openat resumed>) = 4 [pid 5170] <... openat resumed>) = 3 [pid 5172] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5174 attached [pid 5171] <... mount resumed>) = 0 [pid 5170] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5171] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5174] set_robust_list(0x55555622a660, 24 [pid 5173] ioctl(4, LOOP_SET_FD, 3 [pid 5171] <... openat resumed>) = 3 [pid 5170] <... chdir resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5174 [pid 5174] <... set_robust_list resumed>) = 0 [pid 5171] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5170] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5171] <... chdir resumed>) = 0 [pid 5174] chdir("./19" [pid 5171] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5170] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5174] <... chdir resumed>) = 0 [pid 5171] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5170] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5174] setpgid(0, 0) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5174] write(3, "1000", 4) = 4 [pid 5174] close(3) = 0 [pid 5174] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5172] <... ioctl resumed>) = 0 [pid 5174] sync( [pid 5172] close(3 [pid 5173] <... ioctl resumed>) = 0 [pid 5172] <... close resumed>) = 0 [pid 5173] close(3 [pid 5172] close(4 [pid 5173] <... close resumed>) = 0 [pid 5172] <... close resumed>) = 0 [pid 5173] close(4 [pid 5172] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5173] <... close resumed>) = 0 [pid 5172] <... mkdir resumed>) = 0 [pid 5173] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5172] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5173] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5171] <... open resumed>) = 4 [pid 5170] <... open resumed>) = 4 [pid 5171] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5170] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5172] <... mount resumed>) = 0 [pid 5173] <... mount resumed>) = 0 [pid 5172] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5173] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5172] <... openat resumed>) = 3 [pid 5173] <... openat resumed>) = 3 [pid 5170] <... creat resumed>) = 5 [pid 5173] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5172] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5174] <... sync resumed>) = 0 [pid 5172] <... chdir resumed>) = 0 [pid 5174] memfd_create("syzkaller", 0 [pid 5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5173] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5171] <... creat resumed>) = 5 [ 85.085158][ T5172] loop4: detected capacity change from 0 to 1024 [ 85.093444][ T5173] loop0: detected capacity change from 0 to 1024 [pid 5172] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5173] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5174] <... memfd_create resumed>) = 3 [pid 5171] exit_group(0 [pid 5170] exit_group(0 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5172] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5171] <... exit_group resumed>) = ? [pid 5170] <... exit_group resumed>) = ? [pid 5174] <... mmap resumed>) = 0x7f3e37c00000 [pid 5171] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5172] <... open resumed>) = 4 [pid 5173] <... open resumed>) = 4 [pid 5170] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5173] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5172] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] getdents64(3, [pid 5068] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5173] <... creat resumed>) = 5 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5174] <... write resumed>) = 524288 [pid 5068] <... openat resumed>) = 3 [pid 5068] newfstatat(3, "", [pid 5173] exit_group(0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5173] <... exit_group resumed>) = ? [pid 5068] getdents64(3, [pid 5172] <... creat resumed>) = 5 [pid 5173] +++ exited with 0 +++ [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5068] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... umount2 resumed>) = 0 [pid 5172] exit_group(0 [pid 5065] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] <... exit_group resumed>) = ? [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... openat resumed>) = 3 [pid 5172] +++ exited with 0 +++ [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] newfstatat(3, "", [pid 5174] munmap(0x7f3e37c00000, 138412032 [pid 5067] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5174] <... munmap resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5065] getdents64(3, [pid 5069] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5174] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... openat resumed>) = 4 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5174] <... openat resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 5067] newfstatat(4, "", [pid 5065] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] newfstatat(3, "", [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5174] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, [pid 5068] <... umount2 resumed>) = 0 [pid 5065] <... umount2 resumed>) = 0 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5068] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5067] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5174] <... ioctl resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5174] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] unlink("./18/binderfs" [pid 5065] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5174] <... close resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... unlink resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5174] close(4 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(3, [pid 5174] <... close resumed>) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5174] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] newfstatat(4, "", [pid 5065] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, [pid 5065] <... openat resumed>) = 4 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, [pid 5065] newfstatat(4, "", [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] close(4 [pid 5065] getdents64(4, [pid 5068] <... close resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] getdents64(4, [pid 5068] <... rmdir resumed>) = 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5174] <... mkdir resumed>) = 0 [pid 5068] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5067] close(3 [pid 5065] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5174] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... close resumed>) = 0 [pid 5065] <... rmdir resumed>) = 0 [ 85.200373][ T5174] loop1: detected capacity change from 0 to 1024 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] unlink("./18/binderfs" [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... unlink resumed>) = 0 [pid 5067] rmdir("./18" [pid 5065] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5174] <... mount resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5068] getdents64(3, [pid 5067] <... rmdir resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5174] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] newfstatat(4, "", [pid 5067] mkdir("./19", 0777 [pid 5174] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] unlink("./19/binderfs" [pid 5174] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] close(3 [pid 5067] <... mkdir resumed>) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5174] <... chdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5174] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... close resumed>) = 0 [pid 5065] getdents64(3, [pid 5069] getdents64(4, [pid 5174] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] rmdir("./18" [pid 5067] <... openat resumed>) = 3 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5174] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] close(3 [pid 5069] close(4 [pid 5068] mkdir("./19", 0777 [pid 5065] <... close resumed>) = 0 [pid 5174] <... open resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5065] rmdir("./19" [pid 5174] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5069] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] mkdir("./20", 0777 [pid 5069] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5069] unlink("./20/binderfs" [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... unlink resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5065] close(3) = 0 [pid 5174] <... creat resumed>) = 5 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5174] exit_group(0 [pid 5069] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5174] <... exit_group resumed>) = ? [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 5175 attached [pid 5069] rmdir("./20" [pid 5068] <... openat resumed>) = 3 [pid 5175] set_robust_list(0x55555622a660, 24) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] mkdir("./21", 0777 [pid 5175] chdir("./20" [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5175 [pid 5175] <... chdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5174] +++ exited with 0 +++ [pid 5175] <... openat resumed>) = 3 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5066] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] write(3, "1000", 4 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5175] <... write resumed>) = 4 [pid 5066] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5175] close(3 [pid 5066] newfstatat(3, "", [pid 5175] <... close resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs" [pid 5066] getdents64(3, [pid 5175] <... symlink resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5175] sync( [pid 5066] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5067] close(3 [pid 5068] <... ioctl resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] close(3 [pid 5068] close(3 [pid 5066] <... umount2 resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5176 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5176 attached [pid 5176] set_robust_list(0x55555622a660, 24) = 0 [pid 5176] chdir("./19") = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5177 [pid 5066] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5177 attached [pid 5177] set_robust_list(0x55555622a660, 24 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5178 attached [pid 5177] <... set_robust_list resumed>) = 0 [pid 5176] <... prctl resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5176] setpgid(0, 0 [pid 5066] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5175] <... sync resumed>) = 0 [pid 5177] chdir("./19" [pid 5176] <... setpgid resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5178] set_robust_list(0x55555622a660, 24 [pid 5177] <... chdir resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] memfd_create("syzkaller", 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5178 [pid 5066] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5178] <... set_robust_list resumed>) = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] <... openat resumed>) = 3 [pid 5175] <... memfd_create resumed>) = 3 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5177] <... prctl resumed>) = 0 [pid 5176] write(3, "1000", 4 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] chdir("./21" [pid 5066] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5178] <... chdir resumed>) = 0 [pid 5177] setpgid(0, 0 [pid 5176] <... write resumed>) = 4 [pid 5175] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] <... openat resumed>) = 4 [pid 5177] <... setpgid resumed>) = 0 [pid 5176] close(3 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5176] <... close resumed>) = 0 [pid 5066] newfstatat(4, "", [pid 5176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5178] <... prctl resumed>) = 0 [pid 5177] <... openat resumed>) = 3 [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5066] getdents64(4, [pid 5178] setpgid(0, 0 [pid 5176] sync( [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5178] <... setpgid resumed>) = 0 [pid 5177] write(3, "1000", 4 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... write resumed>) = 4 [pid 5066] getdents64(4, [pid 5177] close(3 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5177] <... close resumed>) = 0 [pid 5066] close(4 [pid 5178] write(3, "1000", 4 [pid 5177] symlink("/dev/binderfs", "./binderfs" [pid 5066] <... close resumed>) = 0 [pid 5178] <... write resumed>) = 4 [pid 5177] <... symlink resumed>) = 0 [pid 5178] close(3 [pid 5176] <... sync resumed>) = 0 [pid 5066] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] memfd_create("syzkaller", 0 [pid 5178] <... close resumed>) = 0 [pid 5177] sync( [pid 5176] <... memfd_create resumed>) = 3 [pid 5066] <... rmdir resumed>) = 0 [pid 5178] symlink("/dev/binderfs", "./binderfs" [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] <... symlink resumed>) = 0 [pid 5176] <... mmap resumed>) = 0x7f3e37c00000 [pid 5178] sync( [pid 5175] <... write resumed>) = 524288 [pid 5066] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5178] <... sync resumed>) = 0 [pid 5177] <... sync resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5178] memfd_create("syzkaller", 0 [pid 5177] memfd_create("syzkaller", 0 [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5175] <... munmap resumed>) = 0 [pid 5066] unlink("./19/binderfs" [pid 5178] <... memfd_create resumed>) = 3 [pid 5177] <... memfd_create resumed>) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... unlink resumed>) = 0 [pid 5178] <... mmap resumed>) = 0x7f3e37c00000 [pid 5177] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5066] rmdir("./19" [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5176] <... write resumed>) = 524288 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] <... rmdir resumed>) = 0 [pid 5175] <... openat resumed>) = 4 [pid 5066] mkdir("./20", 0777 [pid 5175] ioctl(4, LOOP_SET_FD, 3 [pid 5178] <... write resumed>) = 524288 [pid 5066] <... mkdir resumed>) = 0 [pid 5178] munmap(0x7f3e37c00000, 138412032 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5178] <... munmap resumed>) = 0 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5066] <... openat resumed>) = 3 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] <... ioctl resumed>) = 0 [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached [pid 5178] <... openat resumed>) = 4 [pid 5177] <... write resumed>) = 524288 [pid 5178] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5179 [pid 5179] set_robust_list(0x55555622a660, 24 [pid 5176] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5175] <... ioctl resumed>) = 0 [pid 5175] close(3) = 0 [pid 5175] close(4 [pid 5176] ioctl(4, LOOP_SET_FD, 3 [pid 5175] <... close resumed>) = 0 [pid 5179] <... set_robust_list resumed>) = 0 [pid 5178] <... ioctl resumed>) = 0 [pid 5175] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5179] chdir("./20" [pid 5178] close(3 [pid 5177] munmap(0x7f3e37c00000, 138412032 [pid 5178] <... close resumed>) = 0 [pid 5179] <... chdir resumed>) = 0 [pid 5178] close(4 [pid 5177] <... munmap resumed>) = 0 [pid 5175] <... mkdir resumed>) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] <... close resumed>) = 0 [pid 5178] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5179] <... prctl resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5175] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5179] setpgid(0, 0 [pid 5178] <... mkdir resumed>) = 0 [pid 5177] <... openat resumed>) = 4 [pid 5179] <... setpgid resumed>) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5179] <... openat resumed>) = 3 [pid 5178] <... mount resumed>) = 0 [ 85.436501][ T5175] loop0: detected capacity change from 0 to 1024 [ 85.463270][ T5178] loop4: detected capacity change from 0 to 1024 [ 85.475829][ T5176] loop2: detected capacity change from 0 to 1024 [pid 5177] ioctl(4, LOOP_SET_FD, 3 [pid 5179] write(3, "1000", 4 [pid 5178] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5177] <... ioctl resumed>) = 0 [pid 5175] <... mount resumed>) = 0 [pid 5179] <... write resumed>) = 4 [pid 5179] close(3 [pid 5175] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5179] <... close resumed>) = 0 [pid 5178] <... openat resumed>) = 3 [pid 5179] symlink("/dev/binderfs", "./binderfs" [pid 5175] <... openat resumed>) = 3 [pid 5179] <... symlink resumed>) = 0 [pid 5178] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] <... ioctl resumed>) = 0 [pid 5175] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] close(3) = 0 [pid 5176] close(4 [pid 5178] <... chdir resumed>) = 0 [pid 5175] <... chdir resumed>) = 0 [pid 5179] sync( [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5176] <... close resumed>) = 0 [pid 5176] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5178] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5176] <... mkdir resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5177] close(3 [pid 5175] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5177] <... close resumed>) = 0 [pid 5175] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5177] close(4) = 0 [pid 5177] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5176] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5177] <... mkdir resumed>) = 0 [pid 5177] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5175] <... open resumed>) = 4 [pid 5178] <... open resumed>) = 4 [ 85.508617][ T5177] loop3: detected capacity change from 0 to 1024 [pid 5178] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5176] <... mount resumed>) = 0 [pid 5175] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5177] <... mount resumed>) = 0 [pid 5177] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5177] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5177] <... chdir resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5176] <... openat resumed>) = 3 [pid 5177] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5176] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5179] <... sync resumed>) = 0 [pid 5179] memfd_create("syzkaller", 0 [pid 5178] <... creat resumed>) = 5 [pid 5179] <... memfd_create resumed>) = 3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5178] exit_group(0) = ? [pid 5178] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5176] <... chdir resumed>) = 0 [pid 5175] <... creat resumed>) = 5 [pid 5176] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5176] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5175] exit_group(0 [pid 5069] <... openat resumed>) = 3 [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5175] <... exit_group resumed>) = ? [pid 5069] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5177] <... open resumed>) = 4 [pid 5069] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] <... open resumed>) = 4 [pid 5175] +++ exited with 0 +++ [pid 5177] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5176] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... creat resumed>) = 5 [pid 5179] <... write resumed>) = 524288 [pid 5069] <... umount2 resumed>) = 0 [pid 5065] <... umount2 resumed>) = 0 [pid 5177] exit_group(0 [pid 5176] <... creat resumed>) = 5 [pid 5179] munmap(0x7f3e37c00000, 138412032 [pid 5069] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5177] +++ exited with 0 +++ [pid 5069] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5179] <... munmap resumed>) = 0 [pid 5068] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5179] <... openat resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 3 [pid 5065] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5179] ioctl(4, LOOP_SET_FD, 3 [pid 5176] exit_group(0 [pid 5069] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] newfstatat(3, "", [pid 5069] <... openat resumed>) = 4 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] <... exit_group resumed>) = ? [pid 5069] newfstatat(4, "", [pid 5065] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] close(4) = 0 [pid 5065] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5179] <... ioctl resumed>) = 0 [pid 5176] +++ exited with 0 +++ [pid 5069] getdents64(4, [pid 5065] <... rmdir resumed>) = 0 [pid 5179] close(3 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=0} --- [pid 5179] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5179] close(4 [pid 5067] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(4) = 0 [pid 5065] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5179] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] unlink("./20/binderfs" [pid 5069] <... rmdir resumed>) = 0 [pid 5179] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... unlink resumed>) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5179] <... mkdir resumed>) = 0 [pid 5065] close(3 [pid 5067] <... openat resumed>) = 3 [pid 5065] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(3, "", [pid 5068] <... umount2 resumed>) = 0 [pid 5179] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] rmdir("./20" [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] getdents64(3, [pid 5065] <... rmdir resumed>) = 0 [pid 5069] unlink("./21/binderfs" [pid 5065] mkdir("./21", 0777 [pid 5069] <... unlink resumed>) = 0 [pid 5068] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... mkdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 85.661039][ T5179] loop1: detected capacity change from 0 to 1024 [pid 5068] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5179] <... mount resumed>) = 0 [pid 5069] close(3) = 0 [pid 5068] newfstatat(4, "", [pid 5179] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] rmdir("./21" [pid 5067] <... umount2 resumed>) = 0 [pid 5179] <... openat resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./22", 0777 [pid 5179] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] getdents64(4, [pid 5067] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5179] <... chdir resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5179] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5179] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5067] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] getdents64(4, [pid 5067] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(4, [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] <... openat resumed>) = 3 [pid 5068] close(4) = 0 [pid 5068] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] getdents64(4, [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] close(4) = 0 [pid 5068] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5179] <... open resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... ioctl resumed>) = 0 [pid 5065] close(3 [pid 5068] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5179] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5065] <... close resumed>) = 0 [pid 5068] unlink("./19/binderfs") = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] getdents64(3, [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5180 attached [pid 5179] <... creat resumed>) = 5 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 5067] unlink("./19/binderfs" [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5180 [pid 5180] set_robust_list(0x55555622a660, 24) = 0 [pid 5180] chdir("./21" [pid 5179] exit_group(0 [pid 5068] <... close resumed>) = 0 [pid 5067] <... unlink resumed>) = 0 [pid 5069] close(3 [pid 5180] <... chdir resumed>) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 5068] rmdir("./19" [pid 5180] <... setpgid resumed>) = 0 [pid 5179] <... exit_group resumed>) = ? [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] getdents64(3, [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5181 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5181 attached [pid 5180] close(3 [pid 5181] set_robust_list(0x55555622a660, 24 [pid 5180] <... close resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5067] close(3 [pid 5181] <... set_robust_list resumed>) = 0 [pid 5180] symlink("/dev/binderfs", "./binderfs" [pid 5181] chdir("./22" [pid 5180] <... symlink resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5181] <... chdir resumed>) = 0 [pid 5180] sync( [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] +++ exited with 0 +++ [pid 5068] mkdir("./20", 0777 [pid 5067] rmdir("./19" [pid 5181] <... prctl resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5181] setpgid(0, 0 [pid 5067] mkdir("./20", 0777 [pid 5181] <... setpgid resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 3 [pid 5066] <... openat resumed>) = 3 [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5067] <... mkdir resumed>) = 0 [pid 5066] getdents64(3, [pid 5181] write(3, "1000", 4 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5181] <... write resumed>) = 4 [pid 5066] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] close(3 [pid 5067] <... openat resumed>) = 3 [pid 5181] <... close resumed>) = 0 [pid 5180] <... sync resumed>) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5180] memfd_create("syzkaller", 0 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5180] <... memfd_create resumed>) = 3 [pid 5066] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] sync( [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, [pid 5181] <... sync resumed>) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5181] memfd_create("syzkaller", 0 [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5066] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5181] <... memfd_create resumed>) = 3 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5182 attached [pid 5180] <... write resumed>) = 524288 [pid 5066] <... rmdir resumed>) = 0 [pid 5182] set_robust_list(0x55555622a660, 24 [pid 5181] <... mmap resumed>) = 0x7f3e37c00000 [pid 5180] munmap(0x7f3e37c00000, 138412032 [pid 5067] <... ioctl resumed>) = 0 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5182 [pid 5066] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] chdir("./20") = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5182] <... prctl resumed>) = 0 [pid 5182] setpgid(0, 0) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] <... munmap resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5182] <... openat resumed>) = 3 [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5182] write(3, "1000", 4 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] unlink("./20/binderfs" [pid 5182] <... write resumed>) = 4 [pid 5180] <... openat resumed>) = 4 [pid 5182] close(3 [pid 5180] ioctl(4, LOOP_SET_FD, 3 [pid 5067] close(3 [pid 5066] <... unlink resumed>) = 0 [pid 5182] <... close resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5066] getdents64(3, [pid 5182] symlink("/dev/binderfs", "./binderfs" [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5182] <... symlink resumed>) = 0 [pid 5066] close(3 [pid 5182] sync( [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5066] <... close resumed>) = 0 ./strace-static-x86_64: Process 5183 attached [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5183 [pid 5066] rmdir("./20") = 0 [pid 5066] mkdir("./21", 0777 [pid 5183] set_robust_list(0x55555622a660, 24 [pid 5182] <... sync resumed>) = 0 [pid 5181] <... write resumed>) = 524288 [pid 5182] memfd_create("syzkaller", 0 [pid 5180] <... ioctl resumed>) = 0 [pid 5180] close(3) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5180] close(4 [pid 5183] chdir("./20" [pid 5180] <... close resumed>) = 0 [pid 5182] <... memfd_create resumed>) = 3 [pid 5180] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5183] <... chdir resumed>) = 0 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5180] <... mkdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5182] <... mmap resumed>) = 0x7f3e37c00000 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] munmap(0x7f3e37c00000, 138412032 [pid 5066] <... openat resumed>) = 3 [pid 5183] <... prctl resumed>) = 0 [pid 5181] <... munmap resumed>) = 0 [pid 5180] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5183] setpgid(0, 0) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5181] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5181] ioctl(4, LOOP_SET_FD, 3 [pid 5183] <... openat resumed>) = 3 [pid 5182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5183] write(3, "1000", 4 [pid 5180] <... mount resumed>) = 0 [pid 5183] <... write resumed>) = 4 [pid 5180] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5180] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs" [pid 5180] <... chdir resumed>) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5180] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5183] <... symlink resumed>) = 0 [pid 5180] <... open resumed>) = 4 [pid 5180] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5183] sync( [pid 5181] <... ioctl resumed>) = 0 [pid 5180] <... creat resumed>) = 5 [pid 5181] close(3) = 0 [pid 5181] close(4 [pid 5180] exit_group(0 [pid 5181] <... close resumed>) = 0 [pid 5180] <... exit_group resumed>) = ? [pid 5181] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5182] <... write resumed>) = 524288 [pid 5181] <... mkdir resumed>) = 0 [pid 5181] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5180] +++ exited with 0 +++ [pid 5066] <... ioctl resumed>) = 0 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5065] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5065] newfstatat(3, "", [pid 5182] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, [pid 5182] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [ 85.893347][ T5180] loop0: detected capacity change from 0 to 1024 [ 85.930122][ T5181] loop4: detected capacity change from 0 to 1024 [pid 5182] <... openat resumed>) = 4 [pid 5065] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] ioctl(4, LOOP_SET_FD, 3 [pid 5181] <... mount resumed>) = 0 [pid 5066] close(3 [pid 5181] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5066] <... close resumed>) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5181] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5181] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 ./strace-static-x86_64: Process 5184 attached [pid 5184] set_robust_list(0x55555622a660, 24 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5184 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5184] chdir("./21" [pid 5181] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5184] <... chdir resumed>) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5184] setpgid(0, 0) = 0 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] <... umount2 resumed>) = 0 [pid 5184] <... openat resumed>) = 3 [pid 5182] <... ioctl resumed>) = 0 [pid 5065] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5182] close(3 [pid 5184] write(3, "1000", 4 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] <... write resumed>) = 4 [pid 5182] <... close resumed>) = 0 [pid 5181] <... creat resumed>) = 5 [pid 5184] close(3 [pid 5182] close(4 [pid 5181] exit_group(0 [pid 5065] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5184] <... close resumed>) = 0 [pid 5182] <... close resumed>) = 0 [pid 5182] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5184] symlink("/dev/binderfs", "./binderfs" [pid 5182] <... mkdir resumed>) = 0 [pid 5181] <... exit_group resumed>) = ? [pid 5184] <... symlink resumed>) = 0 [pid 5065] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5184] sync( [pid 5065] <... openat resumed>) = 4 [pid 5183] <... sync resumed>) = 0 [pid 5182] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5183] memfd_create("syzkaller", 0 [pid 5182] <... mount resumed>) = 0 [pid 5181] +++ exited with 0 +++ [pid 5065] newfstatat(4, "", [pid 5182] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5182] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] getdents64(4, [pid 5182] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5182] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5182] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5183] <... memfd_create resumed>) = 3 [pid 5182] <... open resumed>) = 4 [pid 5065] getdents64(4, [ 85.973624][ T5182] loop3: detected capacity change from 0 to 1024 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5183] <... mmap resumed>) = 0x7f3e37c00000 [pid 5065] close(4) = 0 [pid 5182] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5184] <... sync resumed>) = 0 [pid 5184] memfd_create("syzkaller", 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5065] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5184] <... memfd_create resumed>) = 3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5065] unlink("./21/binderfs" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... unlink resumed>) = 0 [pid 5065] getdents64(3, [pid 5182] <... creat resumed>) = 5 [pid 5069] <... openat resumed>) = 3 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5182] exit_group(0) = ? [pid 5065] close(3 [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] newfstatat(3, "", [pid 5065] <... close resumed>) = 0 [pid 5182] +++ exited with 0 +++ [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(3, [pid 5065] rmdir("./21" [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... rmdir resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5069] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5065] mkdir("./22", 0777 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] ioctl(3, LOOP_CLR_FD) = 0 [pid 5068] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] newfstatat(3, "", [pid 5184] <... write resumed>) = 524288 [pid 5183] <... write resumed>) = 524288 [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] close(3 [pid 5184] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5184] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5184] ioctl(4, LOOP_SET_FD, 3 [pid 5069] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5183] munmap(0x7f3e37c00000, 138412032 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5183] <... munmap resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5069] newfstatat(4, "", [pid 5183] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5069] getdents64(4, [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5183] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5185 attached [pid 5184] <... ioctl resumed>) = 0 [pid 5183] ioctl(4, LOOP_SET_FD, 3 [pid 5068] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5184] close(3) = 0 [pid 5184] close(4) = 0 [pid 5069] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5185] set_robust_list(0x55555622a660, 24 [pid 5184] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [ 86.084287][ T5184] loop1: detected capacity change from 0 to 1024 [pid 5068] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5184] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5185 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5185] chdir("./22" [pid 5068] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5185] <... chdir resumed>) = 0 [pid 5184] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... openat resumed>) = 4 [pid 5185] <... prctl resumed>) = 0 [pid 5068] newfstatat(4, "", [pid 5069] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, [pid 5184] <... mount resumed>) = 0 [pid 5184] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5184] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5184] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5185] setpgid(0, 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5185] <... setpgid resumed>) = 0 [pid 5184] <... open resumed>) = 4 [pid 5068] getdents64(4, [pid 5069] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... ioctl resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5183] close(3 [pid 5069] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5183] <... close resumed>) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5184] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5183] close(4 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] close(4 [pid 5183] <... close resumed>) = 0 [pid 5069] unlink("./22/binderfs" [pid 5185] write(3, "1000", 4 [pid 5183] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5185] <... write resumed>) = 4 [pid 5068] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5185] close(3 [pid 5184] <... creat resumed>) = 5 [pid 5183] <... mkdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] <... rmdir resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5185] sync( [pid 5069] close(3 [pid 5068] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5184] exit_group(0 [pid 5069] rmdir("./22" [pid 5068] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5184] <... exit_group resumed>) = ? [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5183] <... mount resumed>) = 0 [pid 5069] mkdir("./23", 0777 [ 86.131853][ T5183] loop2: detected capacity change from 0 to 1024 [pid 5068] unlink("./20/binderfs" [pid 5184] +++ exited with 0 +++ [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5183] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5066] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] getdents64(3, [pid 5183] <... openat resumed>) = 3 [pid 5183] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5185] <... sync resumed>) = 0 [pid 5183] <... chdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] close(3 [pid 5185] memfd_create("syzkaller", 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5185] <... memfd_create resumed>) = 3 [pid 5183] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] rmdir("./20" [pid 5185] <... mmap resumed>) = 0x7f3e37c00000 [pid 5183] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5066] newfstatat(3, "", [pid 5185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5183] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5068] mkdir("./21", 0777 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(3, [pid 5068] <... mkdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5066] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] <... umount2 resumed>) = 0 [pid 5066] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5185] <... write resumed>) = 524288 [pid 5183] <... open resumed>) = 4 [pid 5066] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5185] munmap(0x7f3e37c00000, 138412032 [pid 5183] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5185] <... munmap resumed>) = 0 [pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5183] <... creat resumed>) = 5 [pid 5069] <... ioctl resumed>) = 0 [pid 5185] <... openat resumed>) = 4 [pid 5183] exit_group(0 [pid 5069] close(3 [pid 5066] <... openat resumed>) = 4 [pid 5183] <... exit_group resumed>) = ? [pid 5069] <... close resumed>) = 0 [pid 5066] newfstatat(4, "", [pid 5183] +++ exited with 0 +++ [pid 5185] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... ioctl resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5185] <... ioctl resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5066] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] close(3 [pid 5067] --- 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 5066] <... rmdir resumed>) = 0 [pid 5066] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] newfstatat(AT_FDCWD, "./21/binderfs", ./strace-static-x86_64: Process 5186 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5186] set_robust_list(0x55555622a660, 24 [pid 5066] unlink("./21/binderfs" [pid 5186] <... set_robust_list resumed>) = 0 [pid 5066] <... unlink resumed>) = 0 [pid 5186] chdir("./23" [pid 5066] getdents64(3, [pid 5186] <... chdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5066] close(3 [pid 5186] <... prctl resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5186] setpgid(0, 0 [pid 5066] rmdir("./21" [pid 5068] <... close resumed>) = 0 [pid 5066] <... rmdir resumed>) = 0 [pid 5186] <... setpgid resumed>) = 0 [pid 5185] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5186 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] mkdir("./22", 0777./strace-static-x86_64: Process 5187 attached [pid 5185] <... close resumed>) = 0 [pid 5187] set_robust_list(0x55555622a660, 24 [pid 5186] <... openat resumed>) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5187 [pid 5066] <... mkdir resumed>) = 0 [pid 5187] <... set_robust_list resumed>) = 0 [pid 5186] write(3, "1000", 4) = 4 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5187] chdir("./21" [pid 5186] close(3 [pid 5067] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 3 [pid 5187] <... chdir resumed>) = 0 [pid 5186] <... close resumed>) = 0 [pid 5185] close(4 [pid 5186] symlink("/dev/binderfs", "./binderfs" [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] <... symlink resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] <... prctl resumed>) = 0 [pid 5067] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5185] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5187] setpgid(0, 0 [pid 5067] <... openat resumed>) = 3 [pid 5186] sync( [pid 5187] <... setpgid resumed>) = 0 [pid 5185] <... mkdir resumed>) = 0 [pid 5067] newfstatat(3, "", [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, [pid 5187] <... openat resumed>) = 3 [pid 5185] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5187] write(3, "1000", 4) = 4 [pid 5185] <... mount resumed>) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5187] close(3 [pid 5067] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... close resumed>) = 0 [ 86.278127][ T5185] loop0: detected capacity change from 0 to 1024 [pid 5185] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5187] symlink("/dev/binderfs", "./binderfs" [pid 5186] <... sync resumed>) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5187] <... symlink resumed>) = 0 [pid 5186] memfd_create("syzkaller", 0 [pid 5185] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5186] <... memfd_create resumed>) = 3 [pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5186] <... mmap resumed>) = 0x7f3e37c00000 [pid 5187] sync( [pid 5067] <... umount2 resumed>) = 0 [pid 5185] <... open resumed>) = 4 [pid 5067] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5185] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(3 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5066] <... close resumed>) = 0 [pid 5067] newfstatat(4, "", [pid 5185] <... creat resumed>) = 5 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5187] <... sync resumed>) = 0 [pid 5186] <... write resumed>) = 524288 [pid 5185] exit_group(0 [pid 5067] getdents64(4, ./strace-static-x86_64: Process 5188 attached [pid 5187] memfd_create("syzkaller", 0 [pid 5185] <... exit_group resumed>) = ? [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5188] set_robust_list(0x55555622a660, 24 [pid 5187] <... memfd_create resumed>) = 3 [pid 5185] +++ exited with 0 +++ [pid 5067] getdents64(4, [pid 5188] <... set_robust_list resumed>) = 0 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5188] chdir("./22" [pid 5067] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5187] <... mmap resumed>) = 0x7f3e37c00000 [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5186] munmap(0x7f3e37c00000, 138412032 [pid 5065] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5186] <... munmap resumed>) = 0 [pid 5067] <... rmdir resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5067] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5188 [pid 5065] newfstatat(3, "", [pid 5188] <... chdir resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5186] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] <... openat resumed>) = 4 [pid 5067] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5186] ioctl(4, LOOP_SET_FD, 3 [pid 5067] unlink("./20/binderfs" [pid 5188] <... prctl resumed>) = 0 [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5188] setpgid(0, 0 [pid 5067] <... unlink resumed>) = 0 [pid 5188] <... setpgid resumed>) = 0 [pid 5067] getdents64(3, [pid 5065] <... umount2 resumed>) = 0 [pid 5065] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5188] <... openat resumed>) = 3 [pid 5067] close(3 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... close resumed>) = 0 [pid 5065] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] rmdir("./20" [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] write(3, "1000", 4 [pid 5065] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5065] newfstatat(4, "", [pid 5188] <... write resumed>) = 4 [pid 5067] <... rmdir resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5188] close(3) = 0 [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5065] close(4) = 0 [pid 5186] <... ioctl resumed>) = 0 [pid 5065] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5186] close(3 [pid 5065] <... rmdir resumed>) = 0 [pid 5188] <... symlink resumed>) = 0 [pid 5186] <... close resumed>) = 0 [pid 5186] close(4 [pid 5065] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] sync( [pid 5187] <... write resumed>) = 524288 [pid 5186] <... close resumed>) = 0 [pid 5067] mkdir("./21", 0777) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5186] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5065] unlink("./22/binderfs" [pid 5186] <... mkdir resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5065] <... unlink resumed>) = 0 [pid 5187] munmap(0x7f3e37c00000, 138412032 [pid 5065] getdents64(3, [pid 5187] <... munmap resumed>) = 0 [pid 5186] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5065] close(3 [pid 5188] <... sync resumed>) = 0 [pid 5188] memfd_create("syzkaller", 0 [pid 5187] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5065] <... close resumed>) = 0 [pid 5065] rmdir("./22" [pid 5188] <... memfd_create resumed>) = 3 [pid 5187] <... openat resumed>) = 4 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5188] <... mmap resumed>) = 0x7f3e37c00000 [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5186] <... mount resumed>) = 0 [pid 5065] mkdir("./23", 0777 [pid 5186] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5065] <... mkdir resumed>) = 0 [pid 5186] <... openat resumed>) = 3 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 86.412123][ T5186] loop4: detected capacity change from 0 to 1024 [pid 5186] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5186] <... chdir resumed>) = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5186] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5186] <... open resumed>) = 4 [pid 5186] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5188] <... write resumed>) = 524288 [pid 5187] <... ioctl resumed>) = 0 [pid 5188] munmap(0x7f3e37c00000, 138412032 [pid 5187] close(3) = 0 [pid 5187] close(4 [pid 5188] <... munmap resumed>) = 0 [pid 5188] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5187] <... close resumed>) = 0 [pid 5188] <... openat resumed>) = 4 [pid 5187] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5067] <... ioctl resumed>) = 0 [pid 5188] ioctl(4, LOOP_SET_FD, 3 [pid 5186] <... creat resumed>) = 5 [pid 5186] exit_group(0 [pid 5188] <... ioctl resumed>) = 0 [pid 5187] <... mkdir resumed>) = 0 [pid 5067] close(3 [pid 5186] <... exit_group resumed>) = ? [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5188] close(3 [pid 5187] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, ""./strace-static-x86_64: Process 5189 attached [pid 5188] <... close resumed>) = 0 [pid 5186] +++ exited with 0 +++ [pid 5065] <... ioctl resumed>) = 0 [pid 5189] set_robust_list(0x55555622a660, 24 [pid 5188] close(4 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [ 86.464365][ T5187] loop3: detected capacity change from 0 to 1024 [ 86.498628][ T5188] loop1: detected capacity change from 0 to 1024 [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5189 [pid 5189] <... set_robust_list resumed>) = 0 [pid 5188] <... close resumed>) = 0 [pid 5188] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5189] chdir("./21" [pid 5188] <... mkdir resumed>) = 0 [pid 5187] <... mount resumed>) = 0 [pid 5065] close(3 [pid 5189] <... chdir resumed>) = 0 [pid 5188] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5187] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... close resumed>) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... prctl resumed>) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] setpgid(0, 0 [pid 5069] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5189] <... setpgid resumed>) = 0 [pid 5069] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5190 attached [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] newfstatat(3, "", [pid 5190] set_robust_list(0x55555622a660, 24 [pid 5189] <... openat resumed>) = 3 [pid 5188] <... mount resumed>) = 0 [pid 5187] <... chdir resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] getdents64(3, [pid 5188] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5190] chdir("./23" [pid 5189] write(3, "1000", 4 [pid 5187] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5190 [pid 5190] <... chdir resumed>) = 0 [pid 5189] <... write resumed>) = 4 [pid 5187] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5189] close(3 [pid 5190] <... prctl resumed>) = 0 [pid 5189] <... close resumed>) = 0 [pid 5190] setpgid(0, 0 [pid 5189] symlink("/dev/binderfs", "./binderfs" [pid 5190] <... setpgid resumed>) = 0 [pid 5189] <... symlink resumed>) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] sync( [pid 5188] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5190] <... openat resumed>) = 3 [pid 5187] <... open resumed>) = 4 [pid 5190] write(3, "1000", 4 [pid 5188] <... chdir resumed>) = 0 [pid 5190] <... write resumed>) = 4 [pid 5190] close(3) = 0 [pid 5188] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5190] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5188] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5190] sync( [pid 5187] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5188] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5187] <... creat resumed>) = 5 [pid 5187] exit_group(0) = ? [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] <... open resumed>) = 4 [pid 5188] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5187] +++ exited with 0 +++ [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5069] newfstatat(4, "", [pid 5068] newfstatat(3, "", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5188] <... creat resumed>) = 5 [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5188] exit_group(0 [pid 5069] <... close resumed>) = 0 [pid 5188] <... exit_group resumed>) = ? [pid 5069] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5069] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] <... sync resumed>) = 0 [pid 5189] <... sync resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] memfd_create("syzkaller", 0 [pid 5189] memfd_create("syzkaller", 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... memfd_create resumed>) = 3 [pid 5068] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5190] <... memfd_create resumed>) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5189] <... mmap resumed>) = 0x7f3e37c00000 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5188] +++ exited with 0 +++ [pid 5069] unlink("./23/binderfs" [pid 5068] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] <... mmap resumed>) = 0x7f3e37c00000 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... unlink resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(3, [pid 5068] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... openat resumed>) = 3 [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5068] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5189] <... write resumed>) = 524288 [pid 5069] close(3 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] newfstatat(3, "", [pid 5189] munmap(0x7f3e37c00000, 138412032 [pid 5069] <... close resumed>) = 0 [pid 5068] close(4 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5189] <... munmap resumed>) = 0 [pid 5069] rmdir("./23" [pid 5068] <... close resumed>) = 0 [pid 5066] getdents64(3, [pid 5068] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5190] <... write resumed>) = 524288 [pid 5068] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] munmap(0x7f3e37c00000, 138412032 [pid 5189] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] <... munmap resumed>) = 0 [pid 5189] <... openat resumed>) = 4 [pid 5069] mkdir("./24", 0777 [pid 5068] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5190] <... openat resumed>) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] unlink("./21/binderfs" [pid 5190] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... unlink resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5189] <... ioctl resumed>) = 0 [pid 5190] <... ioctl resumed>) = 0 [pid 5189] close(3 [pid 5068] getdents64(3, [pid 5066] <... umount2 resumed>) = 0 [pid 5190] close(3 [pid 5189] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5190] <... close resumed>) = 0 [pid 5189] close(4 [pid 5068] close(3 [pid 5066] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5190] close(4 [pid 5189] <... close resumed>) = 0 [pid 5068] rmdir("./21" [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5190] <... close resumed>) = 0 [pid 5189] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5190] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5189] <... mkdir resumed>) = 0 [pid 5066] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5190] <... mkdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5189] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5190] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] newfstatat(4, "", [pid 5068] <... rmdir resumed>) = 0 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] mkdir("./22", 0777 [pid 5066] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... mkdir resumed>) = 0 [pid 5066] getdents64(4, [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5190] <... mount resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5190] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5189] <... mount resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5066] close(4 [pid 5190] <... openat resumed>) = 3 [pid 5189] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5066] <... close resumed>) = 0 [pid 5189] <... openat resumed>) = 3 [pid 5066] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5190] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5189] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... rmdir resumed>) = 0 [pid 5190] <... chdir resumed>) = 0 [pid 5189] <... chdir resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5189] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5189] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5189] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] close(3 [ 86.674448][ T5189] loop2: detected capacity change from 0 to 1024 [ 86.682900][ T5190] loop0: detected capacity change from 0 to 1024 [pid 5066] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... close resumed>) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... open resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5190] <... open resumed>) = 4 [pid 5066] unlink("./22/binderfs") = 0 [pid 5189] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5191 [pid 5066] rmdir("./22"./strace-static-x86_64: Process 5191 attached [pid 5068] <... ioctl resumed>) = 0 [pid 5191] set_robust_list(0x55555622a660, 24) = 0 [pid 5190] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5066] <... rmdir resumed>) = 0 [pid 5068] close(3 [pid 5191] chdir("./24" [pid 5190] <... creat resumed>) = 5 [pid 5189] <... creat resumed>) = 5 [pid 5066] mkdir("./23", 0777 [pid 5191] <... chdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5190] exit_group(0) = ? [pid 5189] exit_group(0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5189] <... exit_group resumed>) = ? [pid 5190] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5065] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5192 attached [pid 5191] <... prctl resumed>) = 0 [pid 5189] +++ exited with 0 +++ [pid 5066] <... openat resumed>) = 3 [pid 5065] <... openat resumed>) = 3 [pid 5192] set_robust_list(0x55555622a660, 24 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] setpgid(0, 0) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5192 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] newfstatat(3, "", [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5192] chdir("./22" [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5191] <... openat resumed>) = 3 [pid 5067] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] <... chdir resumed>) = 0 [pid 5191] write(3, "1000", 4 [pid 5067] <... openat resumed>) = 3 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] <... write resumed>) = 4 [pid 5067] newfstatat(3, "", [pid 5192] <... prctl resumed>) = 0 [pid 5191] close(3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5192] setpgid(0, 0 [pid 5191] <... close resumed>) = 0 [pid 5192] <... setpgid resumed>) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs" [pid 5067] getdents64(3, [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] <... symlink resumed>) = 0 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... umount2 resumed>) = 0 [pid 5067] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] <... openat resumed>) = 3 [pid 5191] sync( [pid 5065] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5192] write(3, "1000", 4 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5192] <... write resumed>) = 4 [pid 5065] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] close(3 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5192] <... close resumed>) = 0 [pid 5065] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5192] symlink("/dev/binderfs", "./binderfs" [pid 5065] <... openat resumed>) = 4 [pid 5065] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(4, 0x555556233730 /* 2 entries */, 32768) = 48 [pid 5065] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5192] <... symlink resumed>) = 0 [pid 5065] close(4 [pid 5192] sync( [pid 5067] <... umount2 resumed>) = 0 [pid 5066] close(3 [pid 5067] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... close resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5065] <... rmdir resumed>) = 0 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5193 attached [pid 5192] <... sync resumed>) = 0 [pid 5191] <... sync resumed>) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5193 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] set_robust_list(0x55555622a660, 24 [pid 5191] memfd_create("syzkaller", 0 [pid 5067] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] <... set_robust_list resumed>) = 0 [pid 5192] memfd_create("syzkaller", 0 [pid 5191] <... memfd_create resumed>) = 3 [pid 5067] <... openat resumed>) = 4 [pid 5065] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5193] chdir("./23" [pid 5192] <... memfd_create resumed>) = 3 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5067] newfstatat(4, "", [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5193] <... chdir resumed>) = 0 [pid 5065] unlink("./23/binderfs" [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... unlink resumed>) = 0 [pid 5193] <... prctl resumed>) = 0 [pid 5065] getdents64(3, [pid 5193] setpgid(0, 0 [pid 5065] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5193] <... setpgid resumed>) = 0 [pid 5065] close(3 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] <... close resumed>) = 0 [pid 5193] <... openat resumed>) = 3 [pid 5065] rmdir("./23" [pid 5193] write(3, "1000", 4 [pid 5065] <... rmdir resumed>) = 0 [pid 5193] <... write resumed>) = 4 [pid 5065] mkdir("./24", 0777 [pid 5193] close(3 [pid 5191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] getdents64(4, [pid 5065] <... mkdir resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] symlink("/dev/binderfs", "./binderfs" [pid 5192] <... mmap resumed>) = 0x7f3e37c00000 [pid 5067] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5193] <... symlink resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5193] sync( [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5067] getdents64(4, 0x555556233730 /* 0 entries */, 32768) = 0 [pid 5067] close(4) = 0 [pid 5067] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5067] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./21/binderfs") = 0 [pid 5067] getdents64(3, 0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5067] close(3) = 0 [pid 5067] rmdir("./21") = 0 [pid 5067] mkdir("./22", 0777 [pid 5193] <... sync resumed>) = 0 [pid 5193] memfd_create("syzkaller", 0) = 3 [pid 5067] <... mkdir resumed>) = 0 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e37c00000 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5192] <... write resumed>) = 524288 [pid 5067] <... openat resumed>) = 3 [pid 5192] munmap(0x7f3e37c00000, 138412032 [pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5191] <... write resumed>) = 524288 [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5191] munmap(0x7f3e37c00000, 138412032 [pid 5193] <... write resumed>) = 524288 [pid 5192] <... munmap resumed>) = 0 [pid 5191] <... munmap resumed>) = 0 [pid 5193] munmap(0x7f3e37c00000, 138412032 [pid 5192] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5193] <... munmap resumed>) = 0 [pid 5192] <... openat resumed>) = 4 [pid 5191] <... openat resumed>) = 4 [pid 5065] <... ioctl resumed>) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5192] ioctl(4, LOOP_SET_FD, 3 [pid 5191] ioctl(4, LOOP_SET_FD, 3 [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5193] <... openat resumed>) = 4 [pid 5192] <... ioctl resumed>) = 0 [pid 5191] <... ioctl resumed>) = 0 [pid 5194] set_robust_list(0x55555622a660, 24 [pid 5193] ioctl(4, LOOP_SET_FD, 3 [pid 5192] close(3 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5191] close(3 [pid 5065] <... clone resumed>, child_tidptr=0x55555622a650) = 5194 [pid 5194] chdir("./24" [pid 5191] <... close resumed>) = 0 [pid 5191] close(4 [pid 5194] <... chdir resumed>) = 0 [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5193] <... ioctl resumed>) = 0 [pid 5192] <... close resumed>) = 0 [pid 5191] <... close resumed>) = 0 [pid 5194] <... prctl resumed>) = 0 [pid 5193] close(3 [pid 5192] close(4 [pid 5191] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5194] setpgid(0, 0 [pid 5192] <... close resumed>) = 0 [pid 5194] <... setpgid resumed>) = 0 [pid 5193] <... close resumed>) = 0 [pid 5192] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5191] <... mkdir resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5193] close(4 [pid 5192] <... mkdir resumed>) = 0 [pid 5191] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5193] <... close resumed>) = 0 [pid 5192] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5067] <... clone resumed>, child_tidptr=0x55555622a650) = 5195 ./strace-static-x86_64: Process 5195 attached [pid 5194] <... openat resumed>) = 3 [pid 5194] write(3, "1000", 4 [ 86.953219][ T5192] loop3: detected capacity change from 0 to 1024 [ 86.960377][ T5191] loop4: detected capacity change from 0 to 1024 [ 86.970993][ T5193] loop1: detected capacity change from 0 to 1024 [pid 5195] set_robust_list(0x55555622a660, 24) = 0 [pid 5194] <... write resumed>) = 4 [pid 5193] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5192] <... mount resumed>) = 0 [pid 5191] <... mount resumed>) = 0 [pid 5194] close(3) = 0 [pid 5192] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5191] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5195] chdir("./22" [pid 5194] symlink("/dev/binderfs", "./binderfs" [pid 5193] <... mkdir resumed>) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5194] <... symlink resumed>) = 0 [pid 5193] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5192] <... openat resumed>) = 3 [pid 5191] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5195] <... chdir resumed>) = 0 [pid 5194] sync( [pid 5192] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5192] <... chdir resumed>) = 0 [pid 5191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5195] <... prctl resumed>) = 0 [pid 5191] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5195] setpgid(0, 0) = 0 [pid 5193] <... mount resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5191] <... open resumed>) = 4 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5193] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5192] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5191] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5195] <... openat resumed>) = 3 [pid 5193] <... openat resumed>) = 3 [pid 5195] write(3, "1000", 4) = 4 [pid 5193] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5192] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5195] close(3 [pid 5193] <... chdir resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5195] symlink("/dev/binderfs", "./binderfs" [pid 5193] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] <... open resumed>) = 4 [pid 5195] <... symlink resumed>) = 0 [pid 5194] <... sync resumed>) = 0 [pid 5193] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5194] memfd_create("syzkaller", 0 [pid 5192] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5191] <... creat resumed>) = 5 [pid 5195] sync( [pid 5191] exit_group(0 [pid 5193] <... open resumed>) = 4 [pid 5194] <... memfd_create resumed>) = 3 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5191] <... exit_group resumed>) = ? [pid 5194] <... mmap resumed>) = 0x7f3e37c00000 [pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5191] +++ exited with 0 +++ [pid 5193] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5192] <... creat resumed>) = 5 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5069] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5192] exit_group(0 [pid 5193] <... creat resumed>) = 5 [pid 5069] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5194] <... write resumed>) = 524288 [pid 5193] exit_group(0 [pid 5192] <... exit_group resumed>) = ? [pid 5069] <... openat resumed>) = 3 [pid 5069] newfstatat(3, "", [pid 5194] munmap(0x7f3e37c00000, 138412032 [pid 5195] <... sync resumed>) = 0 [pid 5193] <... exit_group resumed>) = ? [pid 5192] +++ exited with 0 +++ [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5195] memfd_create("syzkaller", 0 [pid 5194] <... munmap resumed>) = 0 [pid 5195] <... memfd_create resumed>) = 3 [pid 5193] +++ exited with 0 +++ [pid 5069] getdents64(3, [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5195] <... mmap resumed>) = 0x7f3e37c00000 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5069] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5068] <... restart_syscall resumed>) = 0 [pid 5066] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5194] <... openat resumed>) = 4 [pid 5194] ioctl(4, LOOP_SET_FD, 3 [pid 5066] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5066] getdents64(3, [pid 5068] newfstatat(3, "", [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] getdents64(3, [pid 5066] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... ioctl resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5069] <... umount2 resumed>) = 0 [pid 5066] <... umount2 resumed>) = 0 [pid 5069] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... close resumed>) = 0 [pid 5066] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] close(4 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5194] <... close resumed>) = 0 [pid 5069] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5066] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5195] <... write resumed>) = 524288 [pid 5194] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5194] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5194] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5066] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5195] munmap(0x7f3e37c00000, 138412032) = 0 [pid 5068] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5195] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5194] <... mount resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] getdents64(4, [pid 5195] <... openat resumed>) = 4 [ 87.159825][ T5194] loop0: detected capacity change from 0 to 1024 [ 87.188505][ T55] cfg80211: failed to load regulatory.db [pid 5194] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 4 [pid 5068] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] ioctl(4, LOOP_SET_FD, 3 [pid 5194] <... openat resumed>) = 3 [pid 5069] newfstatat(4, "", [pid 5066] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5194] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5068] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] getdents64(4, [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 5066] close(4 [pid 5068] newfstatat(4, "", [pid 5066] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5066] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5069] getdents64(4, [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5069] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(4, [pid 5066] <... rmdir resumed>) = 0 [pid 5069] close(4 [pid 5194] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5069] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5069] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] close(4 [pid 5066] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5195] <... ioctl resumed>) = 0 [pid 5069] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... rmdir resumed>) = 0 [pid 5066] unlink("./23/binderfs" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] close(3 [pid 5066] <... unlink resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 5194] <... open resumed>) = 4 [pid 5069] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] getdents64(3, [pid 5195] close(4 [pid 5194] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5068] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5066] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5195] <... close resumed>) = 0 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] close(3 [pid 5195] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5068] unlink("./22/binderfs" [pid 5066] <... close resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5066] rmdir("./23") = 0 [pid 5195] <... mkdir resumed>) = 0 [pid 5195] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, "" [pid 5069] unlink("./24/binderfs" [pid 5068] getdents64(3, [pid 5066] mkdir("./24", 0777 [pid 5194] <... creat resumed>) = 5 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./22" [pid 5069] getdents64(3, [pid 5068] <... rmdir resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5194] exit_group(0 [pid 5069] <... getdents64 resumed>0x55555622b6f0 /* 0 entries */, 32768) = 0 [pid 5066] <... openat resumed>) = 3 [pid 5068] mkdir("./23", 0777 [pid 5194] <... exit_group resumed>) = ? [pid 5194] +++ exited with 0 +++ [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5195] <... mount resumed>) = 0 [pid 5069] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5195] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] rmdir("./24" [pid 5195] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [ 87.221306][ T5195] loop2: detected capacity change from 0 to 1024 [pid 5069] mkdir("./25", 0777 [pid 5195] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5065] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] <... chdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5065] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5195] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5069] <... openat resumed>) = 3 [pid 5065] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5195] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5065] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] getdents64(3, 0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5195] <... open resumed>) = 4 [pid 5065] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 001 [pid 5065] <... umount2 resumed>) = 0 [pid 5195] <... creat resumed>) = 5 [pid 5066] <... ioctl resumed>) = 0 [pid 5065] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(3) = 0 [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5196 attached [pid 5195] exit_group(0 [pid 5069] <... ioctl resumed>) = 0 [pid 5068] <... ioctl resumed>) = 0 [pid 5196] set_robust_list(0x55555622a660, 24 [pid 5068] close(3 [pid 5066] <... clone resumed>, child_tidptr=0x55555622a650) = 5196 [pid 5065] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5196] <... set_robust_list resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5196] chdir("./24" [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5196] <... chdir resumed>) = 0 [pid 5065] <... openat resumed>) = 4 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] newfstatat(4, "", [pid 5196] <... prctl resumed>) = 0 [pid 5195] <... exit_group resumed>) = ? [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5196] setpgid(0, 0 [pid 5065] getdents64(4, [pid 5196] <... setpgid resumed>) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] <... getdents64 resumed>0x555556233730 /* 2 entries */, 32768) = 48 [pid 5195] +++ exited with 0 +++ [pid 5065] getdents64(4, ./strace-static-x86_64: Process 5197 attached [pid 5196] <... openat resumed>) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x55555622a650) = 5197 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5197] set_robust_list(0x55555622a660, 24 [pid 5065] <... getdents64 resumed>0x555556233730 /* 0 entries */, 32768) = 0 [pid 5197] <... set_robust_list resumed>) = 0 [pid 5196] write(3, "1000", 4 [pid 5069] close(3 [pid 5196] <... write resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5065] close(4 [pid 5197] chdir("./23" [pid 5196] close(3 [pid 5065] <... close resumed>) = 0 [pid 5197] <... chdir resumed>) = 0 [pid 5196] <... close resumed>) = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5197] <... prctl resumed>) = 0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... rmdir resumed>) = 0 [pid 5197] setpgid(0, 0 [pid 5196] symlink("/dev/binderfs", "./binderfs" [pid 5067] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5197] <... setpgid resumed>) = 0 [pid 5196] <... symlink resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] newfstatat(3, "", [pid 5065] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] <... openat resumed>) = 3 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] getdents64(3, [pid 5065] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5197] write(3, "1000", 4 [pid 5067] <... getdents64 resumed>0x55555622b6f0 /* 4 entries */, 32768) = 352 [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5197] <... write resumed>) = 4 [pid 5196] sync( [pid 5067] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] close(3 [pid 5065] unlink("./24/binderfs" [pid 5197] <... close resumed>) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs" [pid 5065] <... unlink resumed>) = 0 [pid 5197] <... symlink resumed>) = 0 [pid 5197] sync( [pid 5067] <... umount2 resumed>) = 0 [pid 5065] getdents64(3, [pid 5067] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... clone resumed>, child_tidptr=0x55555622a650) = 5198 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5198 attached [