./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2680978935 <...> e1", 0777) = 0 [pid 6104] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6104] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6104] chdir("./file1") = 0 [pid 6104] ioctl(4, LOOP_CLR_FD) = 0 [pid 6104] close(4) = 0 [pid 6104] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6104] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6104] ftruncate(5, 33587199) = 0 [ 156.808308][ T6104] loop0: detected capacity change from 0 to 4096 [ 156.821123][ T6104] NILFS (loop0): invalid segment: Checksum error in segment payload [ 156.829147][ T6104] NILFS (loop0): trying rollback from an earlier position [ 156.840450][ T6104] NILFS (loop0): recovery complete [ 156.846558][ T6105] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6104] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6104] exit_group(0) = ? [pid 6104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6104, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./511", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./511", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./511/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./511/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./511/binderfs") = 0 umount2("./511/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./511/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./511/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./511/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./511/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./511/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./511") = 0 mkdir("./512", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6106 attached , child_tidptr=0x555555c06690) = 6106 [pid 6106] chdir("./512") = 0 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6106] setpgid(0, 0) = 0 [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6106] write(3, "1000", 4) = 4 [pid 6106] close(3) = 0 [pid 6106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6106] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6106] memfd_create("syzkaller", 0) = 3 [pid 6106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6106] 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"..., 2097152) = 2097152 [pid 6106] munmap(0x7f320ee61000, 2097152) = 0 [pid 6106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6106] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6106] close(3) = 0 [pid 6106] mkdir("./file1", 0777) = 0 [pid 6106] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6106] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6106] chdir("./file1") = 0 [pid 6106] ioctl(4, LOOP_CLR_FD) = 0 [pid 6106] close(4) = 0 [pid 6106] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6106] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6106] ftruncate(5, 33587199) = 0 [ 157.037142][ T6106] loop0: detected capacity change from 0 to 4096 [ 157.049900][ T6106] NILFS (loop0): invalid segment: Checksum error in segment payload [ 157.058740][ T6106] NILFS (loop0): trying rollback from an earlier position [ 157.070171][ T6106] NILFS (loop0): recovery complete [ 157.076090][ T6107] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6106] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6106] exit_group(0) = ? [pid 6106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6106, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./512", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./512", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./512/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./512/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./512/binderfs") = 0 umount2("./512/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./512/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./512/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./512/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./512/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./512/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./512") = 0 mkdir("./513", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6108 attached , child_tidptr=0x555555c06690) = 6108 [pid 6108] chdir("./513") = 0 [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6108] setpgid(0, 0) = 0 [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6108] write(3, "1000", 4) = 4 [pid 6108] close(3) = 0 [pid 6108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6108] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6108] memfd_create("syzkaller", 0) = 3 [pid 6108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6108] 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"..., 2097152) = 2097152 [pid 6108] munmap(0x7f320ee61000, 2097152) = 0 [pid 6108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6108] close(3) = 0 [pid 6108] mkdir("./file1", 0777) = 0 [pid 6108] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6108] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6108] chdir("./file1") = 0 [pid 6108] ioctl(4, LOOP_CLR_FD) = 0 [pid 6108] close(4) = 0 [pid 6108] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6108] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6108] ftruncate(5, 33587199) = 0 [ 157.268213][ T6108] loop0: detected capacity change from 0 to 4096 [ 157.280737][ T6108] NILFS (loop0): invalid segment: Checksum error in segment payload [ 157.288730][ T6108] NILFS (loop0): trying rollback from an earlier position [ 157.300288][ T6108] NILFS (loop0): recovery complete [ 157.306376][ T6109] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6108] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6108] exit_group(0) = ? [pid 6108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6108, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./513", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./513", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./513/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./513/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./513/binderfs") = 0 umount2("./513/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./513/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./513/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./513/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./513/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./513/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./513") = 0 mkdir("./514", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6110 ./strace-static-x86_64: Process 6110 attached [pid 6110] chdir("./514") = 0 [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6110] setpgid(0, 0) = 0 [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6110] write(3, "1000", 4) = 4 [pid 6110] close(3) = 0 [pid 6110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6110] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6110] memfd_create("syzkaller", 0) = 3 [pid 6110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6110] 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"..., 2097152) = 2097152 [pid 6110] munmap(0x7f320ee61000, 2097152) = 0 [pid 6110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6110] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6110] close(3) = 0 [pid 6110] mkdir("./file1", 0777) = 0 [pid 6110] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6110] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6110] chdir("./file1") = 0 [pid 6110] ioctl(4, LOOP_CLR_FD) = 0 [pid 6110] close(4) = 0 [pid 6110] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6110] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6110] ftruncate(5, 33587199) = 0 [ 157.492185][ T6110] loop0: detected capacity change from 0 to 4096 [ 157.504636][ T6110] NILFS (loop0): invalid segment: Checksum error in segment payload [ 157.512722][ T6110] NILFS (loop0): trying rollback from an earlier position [ 157.523496][ T6110] NILFS (loop0): recovery complete [ 157.529236][ T6111] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6110] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6110] exit_group(0) = ? [pid 6110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6110, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./514", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./514", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./514/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./514/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./514/binderfs") = 0 umount2("./514/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./514/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./514/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./514/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./514/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./514/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./514") = 0 mkdir("./515", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6112 ./strace-static-x86_64: Process 6112 attached [pid 6112] chdir("./515") = 0 [pid 6112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6112] setpgid(0, 0) = 0 [pid 6112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6112] write(3, "1000", 4) = 4 [pid 6112] close(3) = 0 [pid 6112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6112] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6112] memfd_create("syzkaller", 0) = 3 [pid 6112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6112] 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"..., 2097152) = 2097152 [pid 6112] munmap(0x7f320ee61000, 2097152) = 0 [pid 6112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6112] close(3) = 0 [pid 6112] mkdir("./file1", 0777) = 0 [pid 6112] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6112] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6112] chdir("./file1") = 0 [pid 6112] ioctl(4, LOOP_CLR_FD) = 0 [pid 6112] close(4) = 0 [pid 6112] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6112] ftruncate(5, 33587199) = 0 [ 157.723508][ T6112] loop0: detected capacity change from 0 to 4096 [ 157.735721][ T6112] NILFS (loop0): invalid segment: Checksum error in segment payload [ 157.743905][ T6112] NILFS (loop0): trying rollback from an earlier position [ 157.755942][ T6112] NILFS (loop0): recovery complete [ 157.761601][ T6113] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6112] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6112] exit_group(0) = ? [pid 6112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6112, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./515", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./515", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./515/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./515/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./515/binderfs") = 0 umount2("./515/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./515/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./515/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./515/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./515/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./515/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./515") = 0 mkdir("./516", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6114 attached [pid 6114] chdir("./516") = 0 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6114] setpgid(0, 0) = 0 [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6114 [pid 6114] <... openat resumed>) = 3 [pid 6114] write(3, "1000", 4) = 4 [pid 6114] close(3) = 0 [pid 6114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6114] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6114] memfd_create("syzkaller", 0) = 3 [pid 6114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6114] 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"..., 2097152) = 2097152 [pid 6114] munmap(0x7f320ee61000, 2097152) = 0 [pid 6114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6114] close(3) = 0 [pid 6114] mkdir("./file1", 0777) = 0 [pid 6114] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6114] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6114] chdir("./file1") = 0 [pid 6114] ioctl(4, LOOP_CLR_FD) = 0 [pid 6114] close(4) = 0 [pid 6114] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6114] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6114] ftruncate(5, 33587199) = 0 [ 157.947207][ T6114] loop0: detected capacity change from 0 to 4096 [ 157.959834][ T6114] NILFS (loop0): invalid segment: Checksum error in segment payload [ 157.968139][ T6114] NILFS (loop0): trying rollback from an earlier position [ 157.979998][ T6114] NILFS (loop0): recovery complete [ 157.986072][ T6115] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6114] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6114] exit_group(0) = ? [pid 6114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6114, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./516", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./516", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./516/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./516/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./516/binderfs") = 0 umount2("./516/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./516/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./516/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./516/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./516/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./516/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./516") = 0 mkdir("./517", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6116 ./strace-static-x86_64: Process 6116 attached [pid 6116] chdir("./517") = 0 [pid 6116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6116] setpgid(0, 0) = 0 [pid 6116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6116] write(3, "1000", 4) = 4 [pid 6116] close(3) = 0 [pid 6116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6116] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6116] memfd_create("syzkaller", 0) = 3 [pid 6116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6116] 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"..., 2097152) = 2097152 [pid 6116] munmap(0x7f320ee61000, 2097152) = 0 [pid 6116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6116] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6116] close(3) = 0 [pid 6116] mkdir("./file1", 0777) = 0 [pid 6116] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6116] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6116] chdir("./file1") = 0 [pid 6116] ioctl(4, LOOP_CLR_FD) = 0 [pid 6116] close(4) = 0 [pid 6116] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6116] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6116] ftruncate(5, 33587199) = 0 [ 158.177637][ T6116] loop0: detected capacity change from 0 to 4096 [ 158.189686][ T6116] NILFS (loop0): invalid segment: Checksum error in segment payload [ 158.197729][ T6116] NILFS (loop0): trying rollback from an earlier position [ 158.208939][ T6116] NILFS (loop0): recovery complete [ 158.214719][ T6117] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6116] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6116] exit_group(0) = ? [pid 6116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6116, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./517", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./517", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./517/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./517/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./517/binderfs") = 0 umount2("./517/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./517/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./517/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./517/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./517/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./517/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./517") = 0 mkdir("./518", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6118 ./strace-static-x86_64: Process 6118 attached [pid 6118] chdir("./518") = 0 [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6118] setpgid(0, 0) = 0 [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6118] write(3, "1000", 4) = 4 [pid 6118] close(3) = 0 [pid 6118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6118] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6118] memfd_create("syzkaller", 0) = 3 [pid 6118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6118] 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"..., 2097152) = 2097152 [pid 6118] munmap(0x7f320ee61000, 2097152) = 0 [pid 6118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6118] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6118] close(3) = 0 [pid 6118] mkdir("./file1", 0777) = 0 [pid 6118] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6118] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6118] chdir("./file1") = 0 [pid 6118] ioctl(4, LOOP_CLR_FD) = 0 [pid 6118] close(4) = 0 [pid 6118] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6118] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6118] ftruncate(5, 33587199) = 0 [ 158.413667][ T6118] loop0: detected capacity change from 0 to 4096 [ 158.426163][ T6118] NILFS (loop0): invalid segment: Checksum error in segment payload [ 158.434463][ T6118] NILFS (loop0): trying rollback from an earlier position [ 158.445856][ T6118] NILFS (loop0): recovery complete [ 158.451517][ T6119] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6118] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6118] exit_group(0) = ? [pid 6118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6118, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./518", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./518", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./518/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./518/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./518/binderfs") = 0 umount2("./518/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./518/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./518/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./518/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./518/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./518/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./518") = 0 mkdir("./519", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6120 ./strace-static-x86_64: Process 6120 attached [pid 6120] chdir("./519") = 0 [pid 6120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6120] setpgid(0, 0) = 0 [pid 6120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6120] write(3, "1000", 4) = 4 [pid 6120] close(3) = 0 [pid 6120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6120] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6120] memfd_create("syzkaller", 0) = 3 [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6120] 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"..., 2097152) = 2097152 [pid 6120] munmap(0x7f320ee61000, 2097152) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6120] close(3) = 0 [pid 6120] mkdir("./file1", 0777) = 0 [pid 6120] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6120] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6120] chdir("./file1") = 0 [pid 6120] ioctl(4, LOOP_CLR_FD) = 0 [pid 6120] close(4) = 0 [pid 6120] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6120] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6120] ftruncate(5, 33587199) = 0 [ 158.636614][ T6120] loop0: detected capacity change from 0 to 4096 [ 158.649108][ T6120] NILFS (loop0): invalid segment: Checksum error in segment payload [ 158.657371][ T6120] NILFS (loop0): trying rollback from an earlier position [ 158.668650][ T6120] NILFS (loop0): recovery complete [ 158.674484][ T6121] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6120] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6120] exit_group(0) = ? [pid 6120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6120, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./519", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./519", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./519/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./519/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./519/binderfs") = 0 umount2("./519/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./519/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./519/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./519/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./519/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./519/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./519") = 0 mkdir("./520", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6122 ./strace-static-x86_64: Process 6122 attached [pid 6122] chdir("./520") = 0 [pid 6122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6122] setpgid(0, 0) = 0 [pid 6122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6122] write(3, "1000", 4) = 4 [pid 6122] close(3) = 0 [pid 6122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6122] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6122] memfd_create("syzkaller", 0) = 3 [pid 6122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6122] 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"..., 2097152) = 2097152 [pid 6122] munmap(0x7f320ee61000, 2097152) = 0 [pid 6122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6122] close(3) = 0 [pid 6122] mkdir("./file1", 0777) = 0 [pid 6122] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6122] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6122] chdir("./file1") = 0 [pid 6122] ioctl(4, LOOP_CLR_FD) = 0 [pid 6122] close(4) = 0 [pid 6122] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6122] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6122] ftruncate(5, 33587199) = 0 [ 158.879302][ T6122] loop0: detected capacity change from 0 to 4096 [ 158.892184][ T6122] NILFS (loop0): invalid segment: Checksum error in segment payload [ 158.900252][ T6122] NILFS (loop0): trying rollback from an earlier position [ 158.912260][ T6122] NILFS (loop0): recovery complete [ 158.918126][ T6123] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6122] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6122] exit_group(0) = ? [pid 6122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6122, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./520", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./520", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./520/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./520/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./520/binderfs") = 0 umount2("./520/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./520/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./520/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./520/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./520/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./520/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./520") = 0 mkdir("./521", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6124 attached , child_tidptr=0x555555c06690) = 6124 [pid 6124] chdir("./521") = 0 [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6124] setpgid(0, 0) = 0 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6124] write(3, "1000", 4) = 4 [pid 6124] close(3) = 0 [pid 6124] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6124] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6124] memfd_create("syzkaller", 0) = 3 [pid 6124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6124] 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"..., 2097152) = 2097152 [pid 6124] munmap(0x7f320ee61000, 2097152) = 0 [pid 6124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6124] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6124] close(3) = 0 [pid 6124] mkdir("./file1", 0777) = 0 [pid 6124] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6124] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6124] chdir("./file1") = 0 [pid 6124] ioctl(4, LOOP_CLR_FD) = 0 [pid 6124] close(4) = 0 [pid 6124] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6124] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6124] ftruncate(5, 33587199) = 0 [ 159.114388][ T6124] loop0: detected capacity change from 0 to 4096 [ 159.126587][ T6124] NILFS (loop0): invalid segment: Checksum error in segment payload [ 159.134645][ T6124] NILFS (loop0): trying rollback from an earlier position [ 159.145933][ T6124] NILFS (loop0): recovery complete [ 159.151630][ T6125] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6124] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6124] exit_group(0) = ? [pid 6124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6124, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./521", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./521", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./521/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./521/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./521/binderfs") = 0 umount2("./521/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./521/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./521/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./521/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./521/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./521/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./521") = 0 mkdir("./522", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6126 attached [pid 6126] chdir("./522") = 0 [pid 6126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6126] setpgid(0, 0) = 0 [pid 6126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6126 [pid 6126] <... openat resumed>) = 3 [pid 6126] write(3, "1000", 4) = 4 [pid 6126] close(3) = 0 [pid 6126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6126] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6126] memfd_create("syzkaller", 0) = 3 [pid 6126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6126] 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"..., 2097152) = 2097152 [pid 6126] munmap(0x7f320ee61000, 2097152) = 0 [pid 6126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6126] close(3) = 0 [pid 6126] mkdir("./file1", 0777) = 0 [pid 6126] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6126] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6126] chdir("./file1") = 0 [pid 6126] ioctl(4, LOOP_CLR_FD) = 0 [pid 6126] close(4) = 0 [pid 6126] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6126] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6126] ftruncate(5, 33587199) = 0 [ 159.347621][ T6126] loop0: detected capacity change from 0 to 4096 [ 159.360489][ T6126] NILFS (loop0): invalid segment: Checksum error in segment payload [ 159.368531][ T6126] NILFS (loop0): trying rollback from an earlier position [ 159.380090][ T6126] NILFS (loop0): recovery complete [ 159.385700][ T6127] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6126] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6126] exit_group(0) = ? [pid 6126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6126, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./522", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./522", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./522/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./522/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./522/binderfs") = 0 umount2("./522/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./522/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./522/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./522/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./522/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./522/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./522") = 0 mkdir("./523", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6128 attached [pid 6128] chdir("./523") = 0 [pid 6128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6128] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6128 [pid 6128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6128] write(3, "1000", 4) = 4 [pid 6128] close(3) = 0 [pid 6128] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6128] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6128] memfd_create("syzkaller", 0) = 3 [pid 6128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6128] 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"..., 2097152) = 2097152 [pid 6128] munmap(0x7f320ee61000, 2097152) = 0 [pid 6128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6128] close(3) = 0 [pid 6128] mkdir("./file1", 0777) = 0 [pid 6128] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6128] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6128] chdir("./file1") = 0 [pid 6128] ioctl(4, LOOP_CLR_FD) = 0 [pid 6128] close(4) = 0 [pid 6128] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6128] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6128] ftruncate(5, 33587199) = 0 [ 159.578535][ T6128] loop0: detected capacity change from 0 to 4096 [ 159.590652][ T6128] NILFS (loop0): invalid segment: Checksum error in segment payload [ 159.598689][ T6128] NILFS (loop0): trying rollback from an earlier position [ 159.609881][ T6128] NILFS (loop0): recovery complete [ 159.615582][ T6129] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6128] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6128] exit_group(0) = ? [pid 6128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6128, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./523", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./523", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./523/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./523/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./523/binderfs") = 0 umount2("./523/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./523/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./523/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./523/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./523/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./523/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./523") = 0 mkdir("./524", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6130 attached [pid 6130] chdir("./524") = 0 [pid 6130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6130] setpgid(0, 0) = 0 [pid 6130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6130] write(3, "1000", 4) = 4 [pid 6130] close(3) = 0 [pid 6130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6130] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6130] memfd_create("syzkaller", 0) = 3 [pid 6130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6130 [pid 6130] 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"..., 2097152) = 2097152 [pid 6130] munmap(0x7f320ee61000, 2097152) = 0 [pid 6130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6130] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6130] close(3) = 0 [pid 6130] mkdir("./file1", 0777) = 0 [pid 6130] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6130] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6130] chdir("./file1") = 0 [pid 6130] ioctl(4, LOOP_CLR_FD) = 0 [pid 6130] close(4) = 0 [pid 6130] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6130] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6130] ftruncate(5, 33587199) = 0 [ 159.804455][ T6130] loop0: detected capacity change from 0 to 4096 [ 159.817682][ T6130] NILFS (loop0): invalid segment: Checksum error in segment payload [ 159.825863][ T6130] NILFS (loop0): trying rollback from an earlier position [ 159.837133][ T6130] NILFS (loop0): recovery complete [ 159.842975][ T6131] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6130] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6130] exit_group(0) = ? [pid 6130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6130, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./524", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./524", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./524/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./524/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./524/binderfs") = 0 umount2("./524/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./524/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./524/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./524/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./524/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./524/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./524") = 0 mkdir("./525", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6132 attached , child_tidptr=0x555555c06690) = 6132 [pid 6132] chdir("./525") = 0 [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6132] setpgid(0, 0) = 0 [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6132] write(3, "1000", 4) = 4 [pid 6132] close(3) = 0 [pid 6132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6132] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6132] memfd_create("syzkaller", 0) = 3 [pid 6132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6132] 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"..., 2097152) = 2097152 [pid 6132] munmap(0x7f320ee61000, 2097152) = 0 [pid 6132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6132] close(3) = 0 [pid 6132] mkdir("./file1", 0777) = 0 [pid 6132] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6132] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6132] chdir("./file1") = 0 [pid 6132] ioctl(4, LOOP_CLR_FD) = 0 [pid 6132] close(4) = 0 [pid 6132] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6132] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6132] ftruncate(5, 33587199) = 0 [ 160.037411][ T6132] loop0: detected capacity change from 0 to 4096 [ 160.050982][ T6132] NILFS (loop0): invalid segment: Checksum error in segment payload [ 160.059029][ T6132] NILFS (loop0): trying rollback from an earlier position [ 160.070343][ T6132] NILFS (loop0): recovery complete [ 160.076250][ T6133] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6132] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6132] exit_group(0) = ? [pid 6132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6132, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./525", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./525", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./525/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./525/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./525/binderfs") = 0 umount2("./525/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./525/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./525/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./525/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./525/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./525/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./525") = 0 mkdir("./526", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6134 ./strace-static-x86_64: Process 6134 attached [pid 6134] chdir("./526") = 0 [pid 6134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6134] setpgid(0, 0) = 0 [pid 6134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6134] write(3, "1000", 4) = 4 [pid 6134] close(3) = 0 [pid 6134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6134] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6134] memfd_create("syzkaller", 0) = 3 [pid 6134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6134] 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"..., 2097152) = 2097152 [pid 6134] munmap(0x7f320ee61000, 2097152) = 0 [pid 6134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6134] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6134] close(3) = 0 [pid 6134] mkdir("./file1", 0777) = 0 [pid 6134] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6134] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6134] chdir("./file1") = 0 [pid 6134] ioctl(4, LOOP_CLR_FD) = 0 [pid 6134] close(4) = 0 [pid 6134] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6134] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6134] ftruncate(5, 33587199) = 0 [ 160.266450][ T6134] loop0: detected capacity change from 0 to 4096 [ 160.279194][ T6134] NILFS (loop0): invalid segment: Checksum error in segment payload [ 160.287202][ T6134] NILFS (loop0): trying rollback from an earlier position [ 160.298575][ T6134] NILFS (loop0): recovery complete [ 160.304576][ T6135] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6134] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6134] exit_group(0) = ? [pid 6134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6134, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./526", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./526", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./526/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./526/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./526/binderfs") = 0 umount2("./526/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./526/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./526/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./526/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./526/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./526/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./526") = 0 mkdir("./527", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6136 attached [pid 6136] chdir("./527") = 0 [pid 6136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6136] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6136 [pid 6136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6136] write(3, "1000", 4) = 4 [pid 6136] close(3) = 0 [pid 6136] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6136] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6136] memfd_create("syzkaller", 0) = 3 [pid 6136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6136] 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"..., 2097152) = 2097152 [pid 6136] munmap(0x7f320ee61000, 2097152) = 0 [pid 6136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6136] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6136] close(3) = 0 [pid 6136] mkdir("./file1", 0777) = 0 [pid 6136] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6136] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6136] chdir("./file1") = 0 [pid 6136] ioctl(4, LOOP_CLR_FD) = 0 [pid 6136] close(4) = 0 [pid 6136] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6136] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6136] ftruncate(5, 33587199) = 0 [ 160.480741][ T6136] loop0: detected capacity change from 0 to 4096 [ 160.492845][ T6136] NILFS (loop0): invalid segment: Checksum error in segment payload [ 160.501039][ T6136] NILFS (loop0): trying rollback from an earlier position [ 160.512462][ T6136] NILFS (loop0): recovery complete [ 160.518256][ T6137] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6136] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6136] exit_group(0) = ? [pid 6136] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6136, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./527", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./527", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./527/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./527/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./527/binderfs") = 0 umount2("./527/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./527/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./527/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./527/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./527/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./527/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./527") = 0 mkdir("./528", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6138 ./strace-static-x86_64: Process 6138 attached [pid 6138] chdir("./528") = 0 [pid 6138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6138] setpgid(0, 0) = 0 [pid 6138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6138] write(3, "1000", 4) = 4 [pid 6138] close(3) = 0 [pid 6138] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6138] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6138] memfd_create("syzkaller", 0) = 3 [pid 6138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6138] 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"..., 2097152) = 2097152 [pid 6138] munmap(0x7f320ee61000, 2097152) = 0 [pid 6138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6138] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6138] close(3) = 0 [pid 6138] mkdir("./file1", 0777) = 0 [pid 6138] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6138] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6138] chdir("./file1") = 0 [pid 6138] ioctl(4, LOOP_CLR_FD) = 0 [pid 6138] close(4) = 0 [pid 6138] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6138] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6138] ftruncate(5, 33587199) = 0 [ 160.696579][ T6138] loop0: detected capacity change from 0 to 4096 [ 160.709871][ T6138] NILFS (loop0): invalid segment: Checksum error in segment payload [ 160.717907][ T6138] NILFS (loop0): trying rollback from an earlier position [ 160.728913][ T6138] NILFS (loop0): recovery complete [ 160.734621][ T6139] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6138] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6138] exit_group(0) = ? [pid 6138] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6138, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./528", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./528", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./528/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./528/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./528/binderfs") = 0 umount2("./528/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./528/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./528/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./528/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./528/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./528/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./528") = 0 mkdir("./529", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6140 attached [pid 6140] chdir("./529") = 0 [pid 6140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6140] setpgid(0, 0) = 0 [pid 6140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6140] write(3, "1000", 4) = 4 [pid 6140] close(3) = 0 [pid 6140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6140] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6140] memfd_create("syzkaller", 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6140 [pid 6140] <... memfd_create resumed>) = 3 [pid 6140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6140] 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"..., 2097152) = 2097152 [pid 6140] munmap(0x7f320ee61000, 2097152) = 0 [pid 6140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6140] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6140] close(3) = 0 [pid 6140] mkdir("./file1", 0777) = 0 [pid 6140] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6140] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6140] chdir("./file1") = 0 [pid 6140] ioctl(4, LOOP_CLR_FD) = 0 [pid 6140] close(4) = 0 [pid 6140] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6140] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6140] ftruncate(5, 33587199) = 0 [ 160.926837][ T6140] loop0: detected capacity change from 0 to 4096 [ 160.938832][ T6140] NILFS (loop0): invalid segment: Checksum error in segment payload [ 160.947137][ T6140] NILFS (loop0): trying rollback from an earlier position [ 160.958110][ T6140] NILFS (loop0): recovery complete [ 160.963960][ T6141] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6140] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6140] exit_group(0) = ? [pid 6140] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6140, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./529", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./529", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./529/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./529/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./529/binderfs") = 0 umount2("./529/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./529/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./529/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./529/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./529/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./529/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./529") = 0 mkdir("./530", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6142 ./strace-static-x86_64: Process 6142 attached [pid 6142] chdir("./530") = 0 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6142] setpgid(0, 0) = 0 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6142] write(3, "1000", 4) = 4 [pid 6142] close(3) = 0 [pid 6142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6142] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6142] memfd_create("syzkaller", 0) = 3 [pid 6142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6142] 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"..., 2097152) = 2097152 [pid 6142] munmap(0x7f320ee61000, 2097152) = 0 [pid 6142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6142] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6142] close(3) = 0 [pid 6142] mkdir("./file1", 0777) = 0 [pid 6142] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6142] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6142] chdir("./file1") = 0 [pid 6142] ioctl(4, LOOP_CLR_FD) = 0 [pid 6142] close(4) = 0 [pid 6142] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6142] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6142] ftruncate(5, 33587199) = 0 [ 161.147925][ T6142] loop0: detected capacity change from 0 to 4096 [ 161.159852][ T6142] NILFS (loop0): invalid segment: Checksum error in segment payload [ 161.167949][ T6142] NILFS (loop0): trying rollback from an earlier position [ 161.179390][ T6142] NILFS (loop0): recovery complete [ 161.185156][ T6143] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6142] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6142] exit_group(0) = ? [pid 6142] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6142, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./530", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./530", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./530/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./530/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./530/binderfs") = 0 umount2("./530/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./530/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./530/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./530/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./530/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./530/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./530") = 0 mkdir("./531", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6144 attached , child_tidptr=0x555555c06690) = 6144 [pid 6144] chdir("./531") = 0 [pid 6144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6144] setpgid(0, 0) = 0 [pid 6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6144] write(3, "1000", 4) = 4 [pid 6144] close(3) = 0 [pid 6144] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6144] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6144] memfd_create("syzkaller", 0) = 3 [pid 6144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6144] 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"..., 2097152) = 2097152 [pid 6144] munmap(0x7f320ee61000, 2097152) = 0 [pid 6144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6144] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6144] close(3) = 0 [pid 6144] mkdir("./file1", 0777) = 0 [pid 6144] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6144] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6144] chdir("./file1") = 0 [pid 6144] ioctl(4, LOOP_CLR_FD) = 0 [pid 6144] close(4) = 0 [pid 6144] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6144] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6144] ftruncate(5, 33587199) = 0 [ 161.378621][ T6144] loop0: detected capacity change from 0 to 4096 [ 161.391793][ T6144] NILFS (loop0): invalid segment: Checksum error in segment payload [ 161.399851][ T6144] NILFS (loop0): trying rollback from an earlier position [ 161.411606][ T6144] NILFS (loop0): recovery complete [ 161.417333][ T6145] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6144] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6144] exit_group(0) = ? [pid 6144] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6144, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./531", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./531", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./531/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./531/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./531/binderfs") = 0 umount2("./531/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./531/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./531/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./531/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./531/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./531/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./531") = 0 mkdir("./532", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6146 attached , child_tidptr=0x555555c06690) = 6146 [pid 6146] chdir("./532") = 0 [pid 6146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6146] setpgid(0, 0) = 0 [pid 6146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6146] write(3, "1000", 4) = 4 [pid 6146] close(3) = 0 [pid 6146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6146] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6146] memfd_create("syzkaller", 0) = 3 [pid 6146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6146] 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"..., 2097152) = 2097152 [pid 6146] munmap(0x7f320ee61000, 2097152) = 0 [pid 6146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6146] close(3) = 0 [pid 6146] mkdir("./file1", 0777) = 0 [pid 6146] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6146] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6146] chdir("./file1") = 0 [pid 6146] ioctl(4, LOOP_CLR_FD) = 0 [pid 6146] close(4) = 0 [pid 6146] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6146] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6146] ftruncate(5, 33587199) = 0 [ 161.607777][ T6146] loop0: detected capacity change from 0 to 4096 [ 161.620280][ T6146] NILFS (loop0): invalid segment: Checksum error in segment payload [ 161.628303][ T6146] NILFS (loop0): trying rollback from an earlier position [ 161.639602][ T6146] NILFS (loop0): recovery complete [ 161.645553][ T6147] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6146] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6146] exit_group(0) = ? [pid 6146] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6146, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./532", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./532", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./532/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./532/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./532/binderfs") = 0 umount2("./532/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./532/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./532/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./532/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./532/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./532/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./532") = 0 mkdir("./533", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6148 attached , child_tidptr=0x555555c06690) = 6148 [pid 6148] chdir("./533") = 0 [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6148] setpgid(0, 0) = 0 [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6148] write(3, "1000", 4) = 4 [pid 6148] close(3) = 0 [pid 6148] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6148] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6148] memfd_create("syzkaller", 0) = 3 [pid 6148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6148] 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"..., 2097152) = 2097152 [pid 6148] munmap(0x7f320ee61000, 2097152) = 0 [pid 6148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6148] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6148] close(3) = 0 [pid 6148] mkdir("./file1", 0777) = 0 [pid 6148] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6148] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6148] chdir("./file1") = 0 [pid 6148] ioctl(4, LOOP_CLR_FD) = 0 [pid 6148] close(4) = 0 [pid 6148] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6148] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6148] ftruncate(5, 33587199) = 0 [ 161.848154][ T6148] loop0: detected capacity change from 0 to 4096 [ 161.859801][ T6148] NILFS (loop0): invalid segment: Checksum error in segment payload [ 161.867859][ T6148] NILFS (loop0): trying rollback from an earlier position [ 161.878291][ T6148] NILFS (loop0): recovery complete [ 161.884030][ T6149] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6148] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6148] exit_group(0) = ? [pid 6148] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6148, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./533", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./533", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./533/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./533/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./533/binderfs") = 0 umount2("./533/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./533/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./533/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./533/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./533/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./533/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./533") = 0 mkdir("./534", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6150 attached [pid 6150] chdir("./534") = 0 [pid 6150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6150] setpgid(0, 0) = 0 [pid 6150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6150 [pid 6150] <... openat resumed>) = 3 [pid 6150] write(3, "1000", 4) = 4 [pid 6150] close(3) = 0 [pid 6150] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6150] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6150] memfd_create("syzkaller", 0) = 3 [pid 6150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6150] 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"..., 2097152) = 2097152 [pid 6150] munmap(0x7f320ee61000, 2097152) = 0 [pid 6150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6150] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6150] close(3) = 0 [pid 6150] mkdir("./file1", 0777) = 0 [pid 6150] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6150] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6150] chdir("./file1") = 0 [pid 6150] ioctl(4, LOOP_CLR_FD) = 0 [pid 6150] close(4) = 0 [pid 6150] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6150] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6150] ftruncate(5, 33587199) = 0 [ 162.074998][ T6150] loop0: detected capacity change from 0 to 4096 [ 162.087186][ T6150] NILFS (loop0): invalid segment: Checksum error in segment payload [ 162.095223][ T6150] NILFS (loop0): trying rollback from an earlier position [ 162.106293][ T6150] NILFS (loop0): recovery complete [ 162.112032][ T6151] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6150] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6150] exit_group(0) = ? [pid 6150] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6150, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./534", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./534", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./534/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./534/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./534/binderfs") = 0 umount2("./534/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./534/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./534/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./534/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./534/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./534/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./534") = 0 mkdir("./535", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6152 ./strace-static-x86_64: Process 6152 attached [pid 6152] chdir("./535") = 0 [pid 6152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6152] setpgid(0, 0) = 0 [pid 6152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6152] write(3, "1000", 4) = 4 [pid 6152] close(3) = 0 [pid 6152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6152] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6152] memfd_create("syzkaller", 0) = 3 [pid 6152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6152] 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"..., 2097152) = 2097152 [pid 6152] munmap(0x7f320ee61000, 2097152) = 0 [pid 6152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6152] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6152] close(3) = 0 [pid 6152] mkdir("./file1", 0777) = 0 [pid 6152] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6152] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6152] chdir("./file1") = 0 [pid 6152] ioctl(4, LOOP_CLR_FD) = 0 [pid 6152] close(4) = 0 [pid 6152] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6152] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6152] ftruncate(5, 33587199) = 0 [ 162.301652][ T6152] loop0: detected capacity change from 0 to 4096 [ 162.314203][ T6152] NILFS (loop0): invalid segment: Checksum error in segment payload [ 162.322264][ T6152] NILFS (loop0): trying rollback from an earlier position [ 162.333140][ T6152] NILFS (loop0): recovery complete [ 162.338704][ T6153] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6152] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6152] exit_group(0) = ? [pid 6152] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6152, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./535", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./535", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./535/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./535/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./535/binderfs") = 0 umount2("./535/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./535/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./535/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./535/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./535/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./535/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./535") = 0 mkdir("./536", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6154 ./strace-static-x86_64: Process 6154 attached [pid 6154] chdir("./536") = 0 [pid 6154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6154] setpgid(0, 0) = 0 [pid 6154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6154] write(3, "1000", 4) = 4 [pid 6154] close(3) = 0 [pid 6154] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6154] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6154] memfd_create("syzkaller", 0) = 3 [pid 6154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6154] 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"..., 2097152) = 2097152 [pid 6154] munmap(0x7f320ee61000, 2097152) = 0 [pid 6154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6154] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6154] close(3) = 0 [pid 6154] mkdir("./file1", 0777) = 0 [pid 6154] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6154] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6154] chdir("./file1") = 0 [pid 6154] ioctl(4, LOOP_CLR_FD) = 0 [pid 6154] close(4) = 0 [pid 6154] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6154] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6154] ftruncate(5, 33587199) = 0 [ 162.529780][ T6154] loop0: detected capacity change from 0 to 4096 [ 162.542604][ T6154] NILFS (loop0): invalid segment: Checksum error in segment payload [ 162.550639][ T6154] NILFS (loop0): trying rollback from an earlier position [ 162.561778][ T6154] NILFS (loop0): recovery complete [ 162.567767][ T6155] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6154] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6154] exit_group(0) = ? [pid 6154] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6154, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./536", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./536", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./536/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./536/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./536/binderfs") = 0 umount2("./536/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./536/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./536/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./536/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./536/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./536/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./536") = 0 mkdir("./537", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6156 attached [pid 6156] chdir("./537") = 0 [pid 6156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6156] setpgid(0, 0) = 0 [pid 6156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6156 [pid 6156] <... openat resumed>) = 3 [pid 6156] write(3, "1000", 4) = 4 [pid 6156] close(3) = 0 [pid 6156] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6156] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6156] memfd_create("syzkaller", 0) = 3 [pid 6156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6156] 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"..., 2097152) = 2097152 [pid 6156] munmap(0x7f320ee61000, 2097152) = 0 [pid 6156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6156] close(3) = 0 [pid 6156] mkdir("./file1", 0777) = 0 [pid 6156] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6156] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6156] chdir("./file1") = 0 [pid 6156] ioctl(4, LOOP_CLR_FD) = 0 [pid 6156] close(4) = 0 [pid 6156] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6156] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6156] ftruncate(5, 33587199) = 0 [ 162.753105][ T6156] loop0: detected capacity change from 0 to 4096 [ 162.764837][ T6156] NILFS (loop0): invalid segment: Checksum error in segment payload [ 162.773231][ T6156] NILFS (loop0): trying rollback from an earlier position [ 162.784199][ T6156] NILFS (loop0): recovery complete [ 162.789861][ T6157] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6156] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6156] exit_group(0) = ? [pid 6156] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6156, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./537", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./537", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./537/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./537/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./537/binderfs") = 0 umount2("./537/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./537/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./537/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./537/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./537/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./537/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./537") = 0 mkdir("./538", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6158 attached [pid 6158] chdir("./538") = 0 [pid 6158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6158] setpgid(0, 0) = 0 [pid 6158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6158 [pid 6158] <... openat resumed>) = 3 [pid 6158] write(3, "1000", 4) = 4 [pid 6158] close(3) = 0 [pid 6158] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6158] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6158] memfd_create("syzkaller", 0) = 3 [pid 6158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6158] 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"..., 2097152) = 2097152 [pid 6158] munmap(0x7f320ee61000, 2097152) = 0 [pid 6158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6158] close(3) = 0 [pid 6158] mkdir("./file1", 0777) = 0 [pid 6158] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6158] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6158] chdir("./file1") = 0 [pid 6158] ioctl(4, LOOP_CLR_FD) = 0 [pid 6158] close(4) = 0 [pid 6158] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6158] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6158] ftruncate(5, 33587199) = 0 [ 162.976477][ T6158] loop0: detected capacity change from 0 to 4096 [ 162.988904][ T6158] NILFS (loop0): invalid segment: Checksum error in segment payload [ 162.996969][ T6158] NILFS (loop0): trying rollback from an earlier position [ 163.009188][ T6158] NILFS (loop0): recovery complete [ 163.014973][ T6159] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6158] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6158] exit_group(0) = ? [pid 6158] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6158, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./538", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./538", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./538/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./538/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./538/binderfs") = 0 umount2("./538/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./538/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./538/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./538/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./538/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./538/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./538") = 0 mkdir("./539", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6160 ./strace-static-x86_64: Process 6160 attached [pid 6160] chdir("./539") = 0 [pid 6160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6160] setpgid(0, 0) = 0 [pid 6160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6160] write(3, "1000", 4) = 4 [pid 6160] close(3) = 0 [pid 6160] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6160] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6160] memfd_create("syzkaller", 0) = 3 [pid 6160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6160] 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"..., 2097152) = 2097152 [pid 6160] munmap(0x7f320ee61000, 2097152) = 0 [pid 6160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6160] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6160] close(3) = 0 [pid 6160] mkdir("./file1", 0777) = 0 [pid 6160] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6160] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6160] chdir("./file1") = 0 [pid 6160] ioctl(4, LOOP_CLR_FD) = 0 [pid 6160] close(4) = 0 [pid 6160] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6160] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6160] ftruncate(5, 33587199) = 0 [ 163.205474][ T6160] loop0: detected capacity change from 0 to 4096 [ 163.218043][ T6160] NILFS (loop0): invalid segment: Checksum error in segment payload [ 163.226132][ T6160] NILFS (loop0): trying rollback from an earlier position [ 163.237680][ T6160] NILFS (loop0): recovery complete [ 163.243576][ T6161] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6160] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6160] exit_group(0) = ? [pid 6160] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6160, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./539", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./539", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./539/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./539/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./539/binderfs") = 0 umount2("./539/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./539/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./539/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./539/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./539/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./539/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./539") = 0 mkdir("./540", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6162 ./strace-static-x86_64: Process 6162 attached [pid 6162] chdir("./540") = 0 [pid 6162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6162] setpgid(0, 0) = 0 [pid 6162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6162] write(3, "1000", 4) = 4 [pid 6162] close(3) = 0 [pid 6162] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6162] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6162] memfd_create("syzkaller", 0) = 3 [pid 6162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6162] 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"..., 2097152) = 2097152 [pid 6162] munmap(0x7f320ee61000, 2097152) = 0 [pid 6162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6162] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6162] close(3) = 0 [pid 6162] mkdir("./file1", 0777) = 0 [pid 6162] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6162] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6162] chdir("./file1") = 0 [pid 6162] ioctl(4, LOOP_CLR_FD) = 0 [pid 6162] close(4) = 0 [pid 6162] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6162] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6162] ftruncate(5, 33587199) = 0 [ 163.435492][ T6162] loop0: detected capacity change from 0 to 4096 [ 163.447356][ T6162] NILFS (loop0): invalid segment: Checksum error in segment payload [ 163.455431][ T6162] NILFS (loop0): trying rollback from an earlier position [ 163.466523][ T6162] NILFS (loop0): recovery complete [ 163.472219][ T6163] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6162] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6162] exit_group(0) = ? [pid 6162] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6162, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./540", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./540", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./540/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./540/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./540/binderfs") = 0 umount2("./540/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./540/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./540/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./540/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./540/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./540/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./540") = 0 mkdir("./541", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6164 attached , child_tidptr=0x555555c06690) = 6164 [pid 6164] chdir("./541") = 0 [pid 6164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6164] setpgid(0, 0) = 0 [pid 6164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6164] write(3, "1000", 4) = 4 [pid 6164] close(3) = 0 [pid 6164] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6164] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6164] memfd_create("syzkaller", 0) = 3 [pid 6164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6164] 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"..., 2097152) = 2097152 [pid 6164] munmap(0x7f320ee61000, 2097152) = 0 [pid 6164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6164] close(3) = 0 [pid 6164] mkdir("./file1", 0777) = 0 [pid 6164] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6164] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6164] chdir("./file1") = 0 [pid 6164] ioctl(4, LOOP_CLR_FD) = 0 [pid 6164] close(4) = 0 [pid 6164] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6164] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6164] ftruncate(5, 33587199) = 0 [ 163.665942][ T6164] loop0: detected capacity change from 0 to 4096 [ 163.678799][ T6164] NILFS (loop0): invalid segment: Checksum error in segment payload [ 163.687310][ T6164] NILFS (loop0): trying rollback from an earlier position [ 163.698827][ T6164] NILFS (loop0): recovery complete [ 163.704514][ T6165] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6164] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6164] exit_group(0) = ? [pid 6164] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6164, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./541", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./541", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./541/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./541/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./541/binderfs") = 0 umount2("./541/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./541/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./541/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./541/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./541/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./541/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./541") = 0 mkdir("./542", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6166 attached , child_tidptr=0x555555c06690) = 6166 [pid 6166] chdir("./542") = 0 [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6166] setpgid(0, 0) = 0 [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6166] write(3, "1000", 4) = 4 [pid 6166] close(3) = 0 [pid 6166] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6166] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6166] memfd_create("syzkaller", 0) = 3 [pid 6166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6166] 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"..., 2097152) = 2097152 [pid 6166] munmap(0x7f320ee61000, 2097152) = 0 [pid 6166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6166] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6166] close(3) = 0 [pid 6166] mkdir("./file1", 0777) = 0 [pid 6166] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6166] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6166] chdir("./file1") = 0 [pid 6166] ioctl(4, LOOP_CLR_FD) = 0 [pid 6166] close(4) = 0 [pid 6166] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6166] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6166] ftruncate(5, 33587199) = 0 [ 163.898823][ T6166] loop0: detected capacity change from 0 to 4096 [ 163.911027][ T6166] NILFS (loop0): invalid segment: Checksum error in segment payload [ 163.919024][ T6166] NILFS (loop0): trying rollback from an earlier position [ 163.930414][ T6166] NILFS (loop0): recovery complete [ 163.936144][ T6167] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6166] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6166] exit_group(0) = ? [pid 6166] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6166, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./542", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./542", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./542/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./542/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./542/binderfs") = 0 umount2("./542/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./542/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./542/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./542/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./542/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./542/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./542") = 0 mkdir("./543", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6168 ./strace-static-x86_64: Process 6168 attached [pid 6168] chdir("./543") = 0 [pid 6168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6168] setpgid(0, 0) = 0 [pid 6168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6168] write(3, "1000", 4) = 4 [pid 6168] close(3) = 0 [pid 6168] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6168] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6168] memfd_create("syzkaller", 0) = 3 [pid 6168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6168] 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"..., 2097152) = 2097152 [pid 6168] munmap(0x7f320ee61000, 2097152) = 0 [pid 6168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6168] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6168] close(3) = 0 [pid 6168] mkdir("./file1", 0777) = 0 [pid 6168] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6168] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6168] chdir("./file1") = 0 [pid 6168] ioctl(4, LOOP_CLR_FD) = 0 [pid 6168] close(4) = 0 [pid 6168] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6168] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6168] ftruncate(5, 33587199) = 0 [ 164.124904][ T6168] loop0: detected capacity change from 0 to 4096 [ 164.136598][ T6168] NILFS (loop0): invalid segment: Checksum error in segment payload [ 164.144636][ T6168] NILFS (loop0): trying rollback from an earlier position [ 164.155582][ T6168] NILFS (loop0): recovery complete [ 164.161657][ T6169] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6168] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6168] exit_group(0) = ? [pid 6168] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6168, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./543", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./543", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./543/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./543/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./543/binderfs") = 0 umount2("./543/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./543/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./543/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./543/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./543/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./543/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./543") = 0 mkdir("./544", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6170 attached , child_tidptr=0x555555c06690) = 6170 [pid 6170] chdir("./544") = 0 [pid 6170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6170] setpgid(0, 0) = 0 [pid 6170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6170] write(3, "1000", 4) = 4 [pid 6170] close(3) = 0 [pid 6170] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6170] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6170] memfd_create("syzkaller", 0) = 3 [pid 6170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6170] 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"..., 2097152) = 2097152 [pid 6170] munmap(0x7f320ee61000, 2097152) = 0 [pid 6170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6170] close(3) = 0 [pid 6170] mkdir("./file1", 0777) = 0 [pid 6170] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6170] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6170] chdir("./file1") = 0 [pid 6170] ioctl(4, LOOP_CLR_FD) = 0 [pid 6170] close(4) = 0 [pid 6170] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6170] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6170] ftruncate(5, 33587199) = 0 [ 164.352003][ T6170] loop0: detected capacity change from 0 to 4096 [ 164.364270][ T6170] NILFS (loop0): invalid segment: Checksum error in segment payload [ 164.372288][ T6170] NILFS (loop0): trying rollback from an earlier position [ 164.383649][ T6170] NILFS (loop0): recovery complete [ 164.389403][ T6171] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6170] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6170] exit_group(0) = ? [pid 6170] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6170, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./544", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./544", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./544/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./544/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./544/binderfs") = 0 umount2("./544/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./544/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./544/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./544/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./544/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./544/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./544") = 0 mkdir("./545", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6172 ./strace-static-x86_64: Process 6172 attached [pid 6172] chdir("./545") = 0 [pid 6172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6172] setpgid(0, 0) = 0 [pid 6172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6172] write(3, "1000", 4) = 4 [pid 6172] close(3) = 0 [pid 6172] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6172] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6172] memfd_create("syzkaller", 0) = 3 [pid 6172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6172] 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"..., 2097152) = 2097152 [pid 6172] munmap(0x7f320ee61000, 2097152) = 0 [pid 6172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6172] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6172] close(3) = 0 [pid 6172] mkdir("./file1", 0777) = 0 [pid 6172] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6172] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6172] chdir("./file1") = 0 [pid 6172] ioctl(4, LOOP_CLR_FD) = 0 [pid 6172] close(4) = 0 [pid 6172] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6172] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6172] ftruncate(5, 33587199) = 0 [ 164.583093][ T6172] loop0: detected capacity change from 0 to 4096 [ 164.595777][ T6172] NILFS (loop0): invalid segment: Checksum error in segment payload [ 164.603782][ T6172] NILFS (loop0): trying rollback from an earlier position [ 164.614972][ T6172] NILFS (loop0): recovery complete [ 164.620664][ T6173] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6172] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6172] exit_group(0) = ? [pid 6172] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6172, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./545", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./545", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./545/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./545/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./545/binderfs") = 0 umount2("./545/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./545/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./545/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./545/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./545/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./545/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./545") = 0 mkdir("./546", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6174 ./strace-static-x86_64: Process 6174 attached [pid 6174] chdir("./546") = 0 [pid 6174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6174] setpgid(0, 0) = 0 [pid 6174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6174] write(3, "1000", 4) = 4 [pid 6174] close(3) = 0 [pid 6174] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6174] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6174] memfd_create("syzkaller", 0) = 3 [pid 6174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6174] 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"..., 2097152) = 2097152 [pid 6174] munmap(0x7f320ee61000, 2097152) = 0 [pid 6174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6174] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6174] close(3) = 0 [pid 6174] mkdir("./file1", 0777) = 0 [pid 6174] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6174] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6174] chdir("./file1") = 0 [pid 6174] ioctl(4, LOOP_CLR_FD) = 0 [pid 6174] close(4) = 0 [pid 6174] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6174] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6174] ftruncate(5, 33587199) = 0 [ 164.813928][ T6174] loop0: detected capacity change from 0 to 4096 [ 164.825952][ T6174] NILFS (loop0): invalid segment: Checksum error in segment payload [ 164.834415][ T6174] NILFS (loop0): trying rollback from an earlier position [ 164.845566][ T6174] NILFS (loop0): recovery complete [ 164.851456][ T6175] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6174] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6174] exit_group(0) = ? [pid 6174] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6174, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./546", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./546", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./546/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./546/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./546/binderfs") = 0 umount2("./546/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./546/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./546/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./546/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./546/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./546/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./546") = 0 mkdir("./547", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6176 ./strace-static-x86_64: Process 6176 attached [pid 6176] chdir("./547") = 0 [pid 6176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6176] setpgid(0, 0) = 0 [pid 6176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6176] write(3, "1000", 4) = 4 [pid 6176] close(3) = 0 [pid 6176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6176] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6176] memfd_create("syzkaller", 0) = 3 [pid 6176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6176] 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"..., 2097152) = 2097152 [pid 6176] munmap(0x7f320ee61000, 2097152) = 0 [pid 6176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6176] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6176] close(3) = 0 [pid 6176] mkdir("./file1", 0777) = 0 [pid 6176] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6176] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6176] chdir("./file1") = 0 [pid 6176] ioctl(4, LOOP_CLR_FD) = 0 [pid 6176] close(4) = 0 [pid 6176] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6176] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6176] ftruncate(5, 33587199) = 0 [ 165.041667][ T6176] loop0: detected capacity change from 0 to 4096 [ 165.054168][ T6176] NILFS (loop0): invalid segment: Checksum error in segment payload [ 165.062230][ T6176] NILFS (loop0): trying rollback from an earlier position [ 165.073095][ T6176] NILFS (loop0): recovery complete [ 165.078867][ T6177] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6176] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6176] exit_group(0) = ? [pid 6176] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6176, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./547", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./547", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./547/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./547/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./547/binderfs") = 0 umount2("./547/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./547/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./547/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./547/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./547/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./547/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./547") = 0 mkdir("./548", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6178 ./strace-static-x86_64: Process 6178 attached [pid 6178] chdir("./548") = 0 [pid 6178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6178] setpgid(0, 0) = 0 [pid 6178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6178] write(3, "1000", 4) = 4 [pid 6178] close(3) = 0 [pid 6178] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6178] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6178] memfd_create("syzkaller", 0) = 3 [pid 6178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6178] 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"..., 2097152) = 2097152 [pid 6178] munmap(0x7f320ee61000, 2097152) = 0 [pid 6178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6178] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6178] close(3) = 0 [pid 6178] mkdir("./file1", 0777) = 0 [pid 6178] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6178] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6178] chdir("./file1") = 0 [pid 6178] ioctl(4, LOOP_CLR_FD) = 0 [pid 6178] close(4) = 0 [pid 6178] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6178] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6178] ftruncate(5, 33587199) = 0 [ 165.261067][ T6178] loop0: detected capacity change from 0 to 4096 [ 165.273123][ T6178] NILFS (loop0): invalid segment: Checksum error in segment payload [ 165.281180][ T6178] NILFS (loop0): trying rollback from an earlier position [ 165.292090][ T6178] NILFS (loop0): recovery complete [ 165.297823][ T6179] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6178] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6178] exit_group(0) = ? [pid 6178] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6178, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./548", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./548", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./548/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./548/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./548/binderfs") = 0 umount2("./548/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./548/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./548/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./548/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./548/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./548/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./548") = 0 mkdir("./549", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6180 ./strace-static-x86_64: Process 6180 attached [pid 6180] chdir("./549") = 0 [pid 6180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6180] setpgid(0, 0) = 0 [pid 6180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6180] write(3, "1000", 4) = 4 [pid 6180] close(3) = 0 [pid 6180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6180] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6180] memfd_create("syzkaller", 0) = 3 [pid 6180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6180] 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"..., 2097152) = 2097152 [pid 6180] munmap(0x7f320ee61000, 2097152) = 0 [pid 6180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6180] close(3) = 0 [pid 6180] mkdir("./file1", 0777) = 0 [pid 6180] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6180] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6180] chdir("./file1") = 0 [pid 6180] ioctl(4, LOOP_CLR_FD) = 0 [pid 6180] close(4) = 0 [pid 6180] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6180] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6180] ftruncate(5, 33587199) = 0 [ 165.489612][ T6180] loop0: detected capacity change from 0 to 4096 [ 165.502895][ T6180] NILFS (loop0): invalid segment: Checksum error in segment payload [ 165.511016][ T6180] NILFS (loop0): trying rollback from an earlier position [ 165.522468][ T6180] NILFS (loop0): recovery complete [ 165.528761][ T6181] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6180] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6180] exit_group(0) = ? [pid 6180] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6180, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./549", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./549", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./549/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./549/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./549/binderfs") = 0 umount2("./549/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./549/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./549/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./549/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./549/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./549/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./549") = 0 mkdir("./550", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6182 attached , child_tidptr=0x555555c06690) = 6182 [pid 6182] chdir("./550") = 0 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6182] setpgid(0, 0) = 0 [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6182] write(3, "1000", 4) = 4 [pid 6182] close(3) = 0 [pid 6182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6182] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6182] memfd_create("syzkaller", 0) = 3 [pid 6182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6182] 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"..., 2097152) = 2097152 [pid 6182] munmap(0x7f320ee61000, 2097152) = 0 [pid 6182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6182] close(3) = 0 [pid 6182] mkdir("./file1", 0777) = 0 [pid 6182] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6182] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6182] chdir("./file1") = 0 [pid 6182] ioctl(4, LOOP_CLR_FD) = 0 [pid 6182] close(4) = 0 [pid 6182] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6182] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6182] ftruncate(5, 33587199) = 0 [ 165.718336][ T6182] loop0: detected capacity change from 0 to 4096 [ 165.729899][ T6182] NILFS (loop0): invalid segment: Checksum error in segment payload [ 165.737967][ T6182] NILFS (loop0): trying rollback from an earlier position [ 165.749762][ T6182] NILFS (loop0): recovery complete [ 165.755333][ T6183] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6182] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6182] exit_group(0) = ? [pid 6182] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6182, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./550", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./550", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./550/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./550/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./550/binderfs") = 0 umount2("./550/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./550/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./550/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./550/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./550/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./550/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./550") = 0 mkdir("./551", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6184 attached , child_tidptr=0x555555c06690) = 6184 [pid 6184] chdir("./551") = 0 [pid 6184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6184] setpgid(0, 0) = 0 [pid 6184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6184] write(3, "1000", 4) = 4 [pid 6184] close(3) = 0 [pid 6184] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6184] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6184] memfd_create("syzkaller", 0) = 3 [pid 6184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6184] 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"..., 2097152) = 2097152 [pid 6184] munmap(0x7f320ee61000, 2097152) = 0 [pid 6184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6184] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6184] close(3) = 0 [pid 6184] mkdir("./file1", 0777) = 0 [pid 6184] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6184] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6184] chdir("./file1") = 0 [pid 6184] ioctl(4, LOOP_CLR_FD) = 0 [pid 6184] close(4) = 0 [pid 6184] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6184] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6184] ftruncate(5, 33587199) = 0 [ 165.948022][ T6184] loop0: detected capacity change from 0 to 4096 [ 165.960657][ T6184] NILFS (loop0): invalid segment: Checksum error in segment payload [ 165.968656][ T6184] NILFS (loop0): trying rollback from an earlier position [ 165.980487][ T6184] NILFS (loop0): recovery complete [ 165.986302][ T6185] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6184] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6184] exit_group(0) = ? [pid 6184] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6184, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./551", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./551", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./551/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./551/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./551/binderfs") = 0 umount2("./551/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./551/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./551/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./551/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./551/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./551/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./551") = 0 mkdir("./552", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6186 ./strace-static-x86_64: Process 6186 attached [pid 6186] chdir("./552") = 0 [pid 6186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6186] setpgid(0, 0) = 0 [pid 6186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6186] write(3, "1000", 4) = 4 [pid 6186] close(3) = 0 [pid 6186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6186] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6186] memfd_create("syzkaller", 0) = 3 [pid 6186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6186] 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"..., 2097152) = 2097152 [pid 6186] munmap(0x7f320ee61000, 2097152) = 0 [pid 6186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6186] close(3) = 0 [pid 6186] mkdir("./file1", 0777) = 0 [pid 6186] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6186] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6186] chdir("./file1") = 0 [pid 6186] ioctl(4, LOOP_CLR_FD) = 0 [pid 6186] close(4) = 0 [pid 6186] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6186] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6186] ftruncate(5, 33587199) = 0 [ 166.166872][ T6186] loop0: detected capacity change from 0 to 4096 [ 166.178394][ T6186] NILFS (loop0): invalid segment: Checksum error in segment payload [ 166.186395][ T6186] NILFS (loop0): trying rollback from an earlier position [ 166.197562][ T6186] NILFS (loop0): recovery complete [ 166.203361][ T6187] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6186] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6186] exit_group(0) = ? [pid 6186] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6186, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./552", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./552", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./552/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./552/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./552/binderfs") = 0 umount2("./552/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./552/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./552/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./552/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./552/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./552/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./552") = 0 mkdir("./553", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6188 attached [pid 6188] chdir("./553") = 0 [pid 6188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6188] setpgid(0, 0) = 0 [pid 6188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6188 [pid 6188] <... openat resumed>) = 3 [pid 6188] write(3, "1000", 4) = 4 [pid 6188] close(3) = 0 [pid 6188] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6188] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6188] memfd_create("syzkaller", 0) = 3 [pid 6188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6188] 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"..., 2097152) = 2097152 [pid 6188] munmap(0x7f320ee61000, 2097152) = 0 [pid 6188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6188] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6188] close(3) = 0 [pid 6188] mkdir("./file1", 0777) = 0 [pid 6188] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6188] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6188] chdir("./file1") = 0 [pid 6188] ioctl(4, LOOP_CLR_FD) = 0 [pid 6188] close(4) = 0 [pid 6188] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6188] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6188] ftruncate(5, 33587199) = 0 [ 166.404828][ T6188] loop0: detected capacity change from 0 to 4096 [ 166.416871][ T6188] NILFS (loop0): invalid segment: Checksum error in segment payload [ 166.424891][ T6188] NILFS (loop0): trying rollback from an earlier position [ 166.436286][ T6188] NILFS (loop0): recovery complete [ 166.442066][ T6189] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6188] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6188] exit_group(0) = ? [pid 6188] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6188, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./553", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./553", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./553/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./553/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./553/binderfs") = 0 umount2("./553/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./553/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./553/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./553/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./553/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./553/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./553") = 0 mkdir("./554", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6190 ./strace-static-x86_64: Process 6190 attached [pid 6190] chdir("./554") = 0 [pid 6190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6190] setpgid(0, 0) = 0 [pid 6190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6190] write(3, "1000", 4) = 4 [pid 6190] close(3) = 0 [pid 6190] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6190] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6190] memfd_create("syzkaller", 0) = 3 [pid 6190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6190] 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"..., 2097152) = 2097152 [pid 6190] munmap(0x7f320ee61000, 2097152) = 0 [pid 6190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6190] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6190] close(3) = 0 [pid 6190] mkdir("./file1", 0777) = 0 [pid 6190] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6190] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6190] chdir("./file1") = 0 [pid 6190] ioctl(4, LOOP_CLR_FD) = 0 [pid 6190] close(4) = 0 [pid 6190] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6190] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6190] ftruncate(5, 33587199) = 0 [ 166.625312][ T6190] loop0: detected capacity change from 0 to 4096 [ 166.638035][ T6190] NILFS (loop0): invalid segment: Checksum error in segment payload [ 166.646450][ T6190] NILFS (loop0): trying rollback from an earlier position [ 166.657484][ T6190] NILFS (loop0): recovery complete [ 166.663427][ T6191] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6190] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6190] exit_group(0) = ? [pid 6190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6190, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./554", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./554", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./554/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./554/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./554/binderfs") = 0 umount2("./554/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./554/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./554/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./554/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./554/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./554/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./554") = 0 mkdir("./555", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6192 attached [pid 6192] chdir("./555") = 0 [pid 6192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6192] setpgid(0, 0) = 0 [pid 6192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6192 [pid 6192] <... openat resumed>) = 3 [pid 6192] write(3, "1000", 4) = 4 [pid 6192] close(3) = 0 [pid 6192] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6192] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6192] memfd_create("syzkaller", 0) = 3 [pid 6192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6192] 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"..., 2097152) = 2097152 [pid 6192] munmap(0x7f320ee61000, 2097152) = 0 [pid 6192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6192] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6192] close(3) = 0 [pid 6192] mkdir("./file1", 0777) = 0 [pid 6192] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6192] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6192] chdir("./file1") = 0 [pid 6192] ioctl(4, LOOP_CLR_FD) = 0 [pid 6192] close(4) = 0 [pid 6192] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6192] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6192] ftruncate(5, 33587199) = 0 [ 166.857561][ T6192] loop0: detected capacity change from 0 to 4096 [ 166.870976][ T6192] NILFS (loop0): invalid segment: Checksum error in segment payload [ 166.879001][ T6192] NILFS (loop0): trying rollback from an earlier position [ 166.890491][ T6192] NILFS (loop0): recovery complete [ 166.896198][ T6193] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6192] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6192] exit_group(0) = ? [pid 6192] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6192, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./555", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./555", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./555/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./555/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./555/binderfs") = 0 umount2("./555/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./555/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./555/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./555/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./555/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./555/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./555") = 0 mkdir("./556", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6194 attached , child_tidptr=0x555555c06690) = 6194 [pid 6194] chdir("./556") = 0 [pid 6194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6194] setpgid(0, 0) = 0 [pid 6194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6194] write(3, "1000", 4) = 4 [pid 6194] close(3) = 0 [pid 6194] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6194] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6194] memfd_create("syzkaller", 0) = 3 [pid 6194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6194] 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"..., 2097152) = 2097152 [pid 6194] munmap(0x7f320ee61000, 2097152) = 0 [pid 6194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6194] close(3) = 0 [pid 6194] mkdir("./file1", 0777) = 0 [pid 6194] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6194] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6194] chdir("./file1") = 0 [pid 6194] ioctl(4, LOOP_CLR_FD) = 0 [pid 6194] close(4) = 0 [pid 6194] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6194] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6194] ftruncate(5, 33587199) = 0 [ 167.081491][ T6194] loop0: detected capacity change from 0 to 4096 [ 167.092453][ T6194] NILFS (loop0): invalid segment: Checksum error in segment payload [ 167.100653][ T6194] NILFS (loop0): trying rollback from an earlier position [ 167.111555][ T6194] NILFS (loop0): recovery complete [ 167.117150][ T6195] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6194] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6194] exit_group(0) = ? [pid 6194] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6194, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./556", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./556", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./556/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./556/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./556/binderfs") = 0 umount2("./556/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./556/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./556/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./556/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./556/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./556/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./556") = 0 mkdir("./557", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6196 attached [pid 6196] chdir("./557") = 0 [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6196] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6196 [pid 6196] <... setpgid resumed>) = 0 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6196] write(3, "1000", 4) = 4 [pid 6196] close(3) = 0 [pid 6196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6196] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6196] memfd_create("syzkaller", 0) = 3 [pid 6196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6196] 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"..., 2097152) = 2097152 [pid 6196] munmap(0x7f320ee61000, 2097152) = 0 [pid 6196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6196] close(3) = 0 [pid 6196] mkdir("./file1", 0777) = 0 [pid 6196] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6196] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6196] chdir("./file1") = 0 [pid 6196] ioctl(4, LOOP_CLR_FD) = 0 [pid 6196] close(4) = 0 [pid 6196] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6196] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6196] ftruncate(5, 33587199) = 0 [ 167.307211][ T6196] loop0: detected capacity change from 0 to 4096 [ 167.319932][ T6196] NILFS (loop0): invalid segment: Checksum error in segment payload [ 167.328131][ T6196] NILFS (loop0): trying rollback from an earlier position [ 167.339756][ T6196] NILFS (loop0): recovery complete [ 167.345526][ T6197] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6196] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6196] exit_group(0) = ? [pid 6196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6196, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./557", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./557", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./557/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./557/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./557/binderfs") = 0 umount2("./557/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./557/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./557/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./557/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./557/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./557/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./557") = 0 mkdir("./558", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6198 ./strace-static-x86_64: Process 6198 attached [pid 6198] chdir("./558") = 0 [pid 6198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6198] setpgid(0, 0) = 0 [pid 6198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6198] write(3, "1000", 4) = 4 [pid 6198] close(3) = 0 [pid 6198] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6198] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6198] memfd_create("syzkaller", 0) = 3 [pid 6198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6198] 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"..., 2097152) = 2097152 [pid 6198] munmap(0x7f320ee61000, 2097152) = 0 [pid 6198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6198] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6198] close(3) = 0 [pid 6198] mkdir("./file1", 0777) = 0 [pid 6198] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6198] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6198] chdir("./file1") = 0 [pid 6198] ioctl(4, LOOP_CLR_FD) = 0 [pid 6198] close(4) = 0 [pid 6198] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6198] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6198] ftruncate(5, 33587199) = 0 [ 167.542956][ T6198] loop0: detected capacity change from 0 to 4096 [ 167.555475][ T6198] NILFS (loop0): invalid segment: Checksum error in segment payload [ 167.563665][ T6198] NILFS (loop0): trying rollback from an earlier position [ 167.575225][ T6198] NILFS (loop0): recovery complete [ 167.580906][ T6199] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6198] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6198] exit_group(0) = ? [pid 6198] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6198, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./558", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./558", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./558/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./558/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./558/binderfs") = 0 umount2("./558/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./558/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./558/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./558/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./558/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./558/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./558") = 0 mkdir("./559", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6200 ./strace-static-x86_64: Process 6200 attached [pid 6200] chdir("./559") = 0 [pid 6200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6200] setpgid(0, 0) = 0 [pid 6200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6200] write(3, "1000", 4) = 4 [pid 6200] close(3) = 0 [pid 6200] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6200] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6200] memfd_create("syzkaller", 0) = 3 [pid 6200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6200] 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"..., 2097152) = 2097152 [pid 6200] munmap(0x7f320ee61000, 2097152) = 0 [pid 6200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6200] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6200] close(3) = 0 [pid 6200] mkdir("./file1", 0777) = 0 [pid 6200] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6200] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6200] chdir("./file1") = 0 [pid 6200] ioctl(4, LOOP_CLR_FD) = 0 [pid 6200] close(4) = 0 [pid 6200] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6200] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6200] ftruncate(5, 33587199) = 0 [ 167.764508][ T6200] loop0: detected capacity change from 0 to 4096 [ 167.777381][ T6200] NILFS (loop0): invalid segment: Checksum error in segment payload [ 167.785442][ T6200] NILFS (loop0): trying rollback from an earlier position [ 167.797266][ T6200] NILFS (loop0): recovery complete [ 167.802976][ T6201] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6200] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6200] exit_group(0) = ? [pid 6200] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6200, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./559", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./559", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./559/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./559/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./559/binderfs") = 0 umount2("./559/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./559/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./559/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./559/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./559/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./559/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./559") = 0 mkdir("./560", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6202 attached , child_tidptr=0x555555c06690) = 6202 [pid 6202] chdir("./560") = 0 [pid 6202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6202] setpgid(0, 0) = 0 [pid 6202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6202] write(3, "1000", 4) = 4 [pid 6202] close(3) = 0 [pid 6202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6202] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6202] memfd_create("syzkaller", 0) = 3 [pid 6202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6202] 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"..., 2097152) = 2097152 [pid 6202] munmap(0x7f320ee61000, 2097152) = 0 [pid 6202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6202] close(3) = 0 [pid 6202] mkdir("./file1", 0777) = 0 [pid 6202] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6202] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6202] chdir("./file1") = 0 [pid 6202] ioctl(4, LOOP_CLR_FD) = 0 [pid 6202] close(4) = 0 [pid 6202] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6202] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6202] ftruncate(5, 33587199) = 0 [ 168.000606][ T6202] loop0: detected capacity change from 0 to 4096 [ 168.012508][ T6202] NILFS (loop0): invalid segment: Checksum error in segment payload [ 168.020573][ T6202] NILFS (loop0): trying rollback from an earlier position [ 168.031138][ T6202] NILFS (loop0): recovery complete [ 168.036764][ T6203] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6202] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6202] exit_group(0) = ? [pid 6202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6202, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./560", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./560", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./560/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./560/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./560/binderfs") = 0 umount2("./560/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./560/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./560/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./560/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./560/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./560/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./560") = 0 mkdir("./561", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6204 attached [pid 6204] chdir("./561") = 0 [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6204] setpgid(0, 0) = 0 [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6204 [pid 6204] <... openat resumed>) = 3 [pid 6204] write(3, "1000", 4) = 4 [pid 6204] close(3) = 0 [pid 6204] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6204] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6204] memfd_create("syzkaller", 0) = 3 [pid 6204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6204] 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"..., 2097152) = 2097152 [pid 6204] munmap(0x7f320ee61000, 2097152) = 0 [pid 6204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6204] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6204] close(3) = 0 [pid 6204] mkdir("./file1", 0777) = 0 [pid 6204] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6204] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6204] chdir("./file1") = 0 [pid 6204] ioctl(4, LOOP_CLR_FD) = 0 [pid 6204] close(4) = 0 [pid 6204] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6204] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6204] ftruncate(5, 33587199) = 0 [ 168.216323][ T6204] loop0: detected capacity change from 0 to 4096 [ 168.228727][ T6204] NILFS (loop0): invalid segment: Checksum error in segment payload [ 168.236852][ T6204] NILFS (loop0): trying rollback from an earlier position [ 168.247913][ T6204] NILFS (loop0): recovery complete [ 168.253704][ T6205] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6204] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6204] exit_group(0) = ? [pid 6204] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6204, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./561", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./561", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./561/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./561/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./561/binderfs") = 0 umount2("./561/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./561/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./561/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./561/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./561/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./561/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./561") = 0 mkdir("./562", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6206 ./strace-static-x86_64: Process 6206 attached [pid 6206] chdir("./562") = 0 [pid 6206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6206] setpgid(0, 0) = 0 [pid 6206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6206] write(3, "1000", 4) = 4 [pid 6206] close(3) = 0 [pid 6206] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6206] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6206] memfd_create("syzkaller", 0) = 3 [pid 6206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6206] 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"..., 2097152) = 2097152 [pid 6206] munmap(0x7f320ee61000, 2097152) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6206] close(3) = 0 [pid 6206] mkdir("./file1", 0777) = 0 [pid 6206] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6206] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6206] chdir("./file1") = 0 [pid 6206] ioctl(4, LOOP_CLR_FD) = 0 [pid 6206] close(4) = 0 [pid 6206] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6206] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6206] ftruncate(5, 33587199) = 0 [ 168.441588][ T6206] loop0: detected capacity change from 0 to 4096 [ 168.453650][ T6206] NILFS (loop0): invalid segment: Checksum error in segment payload [ 168.461844][ T6206] NILFS (loop0): trying rollback from an earlier position [ 168.473945][ T6206] NILFS (loop0): recovery complete [ 168.479743][ T6207] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6206] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6206] exit_group(0) = ? [pid 6206] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6206, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./562", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./562", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./562/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./562/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./562/binderfs") = 0 umount2("./562/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./562/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./562/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./562/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./562/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./562/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./562") = 0 mkdir("./563", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6208 attached , child_tidptr=0x555555c06690) = 6208 [pid 6208] chdir("./563") = 0 [pid 6208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6208] setpgid(0, 0) = 0 [pid 6208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6208] write(3, "1000", 4) = 4 [pid 6208] close(3) = 0 [pid 6208] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6208] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6208] memfd_create("syzkaller", 0) = 3 [pid 6208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6208] 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"..., 2097152) = 2097152 [pid 6208] munmap(0x7f320ee61000, 2097152) = 0 [pid 6208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6208] close(3) = 0 [pid 6208] mkdir("./file1", 0777) = 0 [pid 6208] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6208] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6208] chdir("./file1") = 0 [pid 6208] ioctl(4, LOOP_CLR_FD) = 0 [pid 6208] close(4) = 0 [pid 6208] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6208] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6208] ftruncate(5, 33587199) = 0 [ 168.676979][ T6208] loop0: detected capacity change from 0 to 4096 [ 168.689227][ T6208] NILFS (loop0): invalid segment: Checksum error in segment payload [ 168.697446][ T6208] NILFS (loop0): trying rollback from an earlier position [ 168.708458][ T6208] NILFS (loop0): recovery complete [ 168.714422][ T6209] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6208] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6208] exit_group(0) = ? [pid 6208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6208, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./563", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./563", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./563/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./563/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./563/binderfs") = 0 umount2("./563/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./563/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./563/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./563/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./563/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./563/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./563") = 0 mkdir("./564", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6210 ./strace-static-x86_64: Process 6210 attached [pid 6210] chdir("./564") = 0 [pid 6210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6210] setpgid(0, 0) = 0 [pid 6210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6210] write(3, "1000", 4) = 4 [pid 6210] close(3) = 0 [pid 6210] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6210] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6210] memfd_create("syzkaller", 0) = 3 [pid 6210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6210] 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"..., 2097152) = 2097152 [pid 6210] munmap(0x7f320ee61000, 2097152) = 0 [pid 6210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6210] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6210] close(3) = 0 [pid 6210] mkdir("./file1", 0777) = 0 [pid 6210] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6210] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6210] chdir("./file1") = 0 [pid 6210] ioctl(4, LOOP_CLR_FD) = 0 [pid 6210] close(4) = 0 [pid 6210] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6210] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6210] ftruncate(5, 33587199) = 0 [ 168.903003][ T6210] loop0: detected capacity change from 0 to 4096 [ 168.915274][ T6210] NILFS (loop0): invalid segment: Checksum error in segment payload [ 168.923617][ T6210] NILFS (loop0): trying rollback from an earlier position [ 168.936254][ T6210] NILFS (loop0): recovery complete [ 168.942086][ T6211] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6210] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6210] exit_group(0) = ? [pid 6210] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6210, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./564", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./564", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./564/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./564/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./564/binderfs") = 0 umount2("./564/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./564/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./564/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./564/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./564/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./564/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./564") = 0 mkdir("./565", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6212 ./strace-static-x86_64: Process 6212 attached [pid 6212] chdir("./565") = 0 [pid 6212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6212] setpgid(0, 0) = 0 [pid 6212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6212] write(3, "1000", 4) = 4 [pid 6212] close(3) = 0 [pid 6212] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6212] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6212] memfd_create("syzkaller", 0) = 3 [pid 6212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6212] 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"..., 2097152) = 2097152 [pid 6212] munmap(0x7f320ee61000, 2097152) = 0 [pid 6212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6212] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6212] close(3) = 0 [pid 6212] mkdir("./file1", 0777) = 0 [pid 6212] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6212] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6212] chdir("./file1") = 0 [pid 6212] ioctl(4, LOOP_CLR_FD) = 0 [pid 6212] close(4) = 0 [pid 6212] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6212] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6212] ftruncate(5, 33587199) = 0 [ 169.132321][ T6212] loop0: detected capacity change from 0 to 4096 [ 169.144190][ T6212] NILFS (loop0): invalid segment: Checksum error in segment payload [ 169.152424][ T6212] NILFS (loop0): trying rollback from an earlier position [ 169.164034][ T6212] NILFS (loop0): recovery complete [ 169.169794][ T6213] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6212] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6212] exit_group(0) = ? [pid 6212] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6212, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./565", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./565", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./565/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./565/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./565/binderfs") = 0 umount2("./565/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./565/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./565/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./565/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./565/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./565/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./565") = 0 mkdir("./566", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6214 attached , child_tidptr=0x555555c06690) = 6214 [pid 6214] chdir("./566") = 0 [pid 6214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6214] setpgid(0, 0) = 0 [pid 6214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6214] write(3, "1000", 4) = 4 [pid 6214] close(3) = 0 [pid 6214] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6214] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6214] memfd_create("syzkaller", 0) = 3 [pid 6214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6214] 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"..., 2097152) = 2097152 [pid 6214] munmap(0x7f320ee61000, 2097152) = 0 [pid 6214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6214] close(3) = 0 [pid 6214] mkdir("./file1", 0777) = 0 [pid 6214] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6214] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6214] chdir("./file1") = 0 [pid 6214] ioctl(4, LOOP_CLR_FD) = 0 [pid 6214] close(4) = 0 [pid 6214] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6214] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6214] ftruncate(5, 33587199) = 0 [ 169.360529][ T6214] loop0: detected capacity change from 0 to 4096 [ 169.372094][ T6214] NILFS (loop0): invalid segment: Checksum error in segment payload [ 169.380183][ T6214] NILFS (loop0): trying rollback from an earlier position [ 169.391604][ T6214] NILFS (loop0): recovery complete [ 169.397378][ T6215] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6214] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6214] exit_group(0) = ? [pid 6214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6214, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./566", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./566", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./566/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./566/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./566/binderfs") = 0 umount2("./566/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./566/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./566/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./566/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./566/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./566/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./566") = 0 mkdir("./567", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6216 attached , child_tidptr=0x555555c06690) = 6216 [pid 6216] chdir("./567") = 0 [pid 6216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6216] setpgid(0, 0) = 0 [pid 6216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6216] write(3, "1000", 4) = 4 [pid 6216] close(3) = 0 [pid 6216] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6216] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6216] memfd_create("syzkaller", 0) = 3 [pid 6216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6216] 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"..., 2097152) = 2097152 [pid 6216] munmap(0x7f320ee61000, 2097152) = 0 [pid 6216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6216] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6216] close(3) = 0 [pid 6216] mkdir("./file1", 0777) = 0 [pid 6216] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6216] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6216] chdir("./file1") = 0 [pid 6216] ioctl(4, LOOP_CLR_FD) = 0 [pid 6216] close(4) = 0 [pid 6216] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6216] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6216] ftruncate(5, 33587199) = 0 [ 169.586702][ T6216] loop0: detected capacity change from 0 to 4096 [ 169.598592][ T6216] NILFS (loop0): invalid segment: Checksum error in segment payload [ 169.606756][ T6216] NILFS (loop0): trying rollback from an earlier position [ 169.618319][ T6216] NILFS (loop0): recovery complete [ 169.624232][ T6217] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6216] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6216] exit_group(0) = ? [pid 6216] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6216, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./567", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./567", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./567/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./567/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./567/binderfs") = 0 umount2("./567/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./567/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./567/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./567/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./567/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./567/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./567") = 0 mkdir("./568", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6218 ./strace-static-x86_64: Process 6218 attached [pid 6218] chdir("./568") = 0 [pid 6218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6218] setpgid(0, 0) = 0 [pid 6218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6218] write(3, "1000", 4) = 4 [pid 6218] close(3) = 0 [pid 6218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6218] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6218] memfd_create("syzkaller", 0) = 3 [pid 6218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6218] 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"..., 2097152) = 2097152 [pid 6218] munmap(0x7f320ee61000, 2097152) = 0 [pid 6218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6218] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6218] close(3) = 0 [pid 6218] mkdir("./file1", 0777) = 0 [pid 6218] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6218] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6218] chdir("./file1") = 0 [pid 6218] ioctl(4, LOOP_CLR_FD) = 0 [pid 6218] close(4) = 0 [pid 6218] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6218] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6218] ftruncate(5, 33587199) = 0 [ 169.816785][ T6218] loop0: detected capacity change from 0 to 4096 [ 169.828781][ T6218] NILFS (loop0): invalid segment: Checksum error in segment payload [ 169.836819][ T6218] NILFS (loop0): trying rollback from an earlier position [ 169.847529][ T6218] NILFS (loop0): recovery complete [ 169.853252][ T6219] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6218] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6218] exit_group(0) = ? [pid 6218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6218, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./568", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./568", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./568/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./568/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./568/binderfs") = 0 umount2("./568/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./568/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./568/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./568/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./568/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./568/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./568") = 0 mkdir("./569", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6220 attached , child_tidptr=0x555555c06690) = 6220 [pid 6220] chdir("./569") = 0 [pid 6220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6220] setpgid(0, 0) = 0 [pid 6220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6220] write(3, "1000", 4) = 4 [pid 6220] close(3) = 0 [pid 6220] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6220] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6220] memfd_create("syzkaller", 0) = 3 [pid 6220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6220] 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"..., 2097152) = 2097152 [pid 6220] munmap(0x7f320ee61000, 2097152) = 0 [pid 6220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6220] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6220] close(3) = 0 [pid 6220] mkdir("./file1", 0777) = 0 [pid 6220] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6220] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6220] chdir("./file1") = 0 [pid 6220] ioctl(4, LOOP_CLR_FD) = 0 [pid 6220] close(4) = 0 [pid 6220] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6220] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6220] ftruncate(5, 33587199) = 0 [ 170.041312][ T6220] loop0: detected capacity change from 0 to 4096 [ 170.053524][ T6220] NILFS (loop0): invalid segment: Checksum error in segment payload [ 170.061671][ T6220] NILFS (loop0): trying rollback from an earlier position [ 170.072747][ T6220] NILFS (loop0): recovery complete [ 170.078392][ T6221] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6220] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6220] exit_group(0) = ? [pid 6220] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6220, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./569", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./569", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./569/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./569/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./569/binderfs") = 0 umount2("./569/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./569/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./569/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./569/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./569/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./569/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./569") = 0 mkdir("./570", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6222 attached [pid 6222] chdir("./570") = 0 [pid 6222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6222] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6222 [pid 6222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6222] write(3, "1000", 4) = 4 [pid 6222] close(3) = 0 [pid 6222] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6222] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6222] memfd_create("syzkaller", 0) = 3 [pid 6222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6222] 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"..., 2097152) = 2097152 [pid 6222] munmap(0x7f320ee61000, 2097152) = 0 [pid 6222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6222] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6222] close(3) = 0 [pid 6222] mkdir("./file1", 0777) = 0 [pid 6222] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6222] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6222] chdir("./file1") = 0 [pid 6222] ioctl(4, LOOP_CLR_FD) = 0 [pid 6222] close(4) = 0 [pid 6222] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6222] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6222] ftruncate(5, 33587199) = 0 [ 170.267181][ T6222] loop0: detected capacity change from 0 to 4096 [ 170.279718][ T6222] NILFS (loop0): invalid segment: Checksum error in segment payload [ 170.287774][ T6222] NILFS (loop0): trying rollback from an earlier position [ 170.298771][ T6222] NILFS (loop0): recovery complete [ 170.304388][ T6223] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6222] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6222] exit_group(0) = ? [pid 6222] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6222, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./570", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./570", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./570/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./570/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./570/binderfs") = 0 umount2("./570/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./570/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./570/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./570/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./570/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./570/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./570") = 0 mkdir("./571", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6224 attached , child_tidptr=0x555555c06690) = 6224 [pid 6224] chdir("./571") = 0 [pid 6224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6224] setpgid(0, 0) = 0 [pid 6224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6224] write(3, "1000", 4) = 4 [pid 6224] close(3) = 0 [pid 6224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6224] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6224] memfd_create("syzkaller", 0) = 3 [pid 6224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6224] 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"..., 2097152) = 2097152 [pid 6224] munmap(0x7f320ee61000, 2097152) = 0 [pid 6224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6224] close(3) = 0 [pid 6224] mkdir("./file1", 0777) = 0 [pid 6224] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6224] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6224] chdir("./file1") = 0 [pid 6224] ioctl(4, LOOP_CLR_FD) = 0 [pid 6224] close(4) = 0 [pid 6224] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6224] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6224] ftruncate(5, 33587199) = 0 [ 170.488260][ T6224] loop0: detected capacity change from 0 to 4096 [ 170.501277][ T6224] NILFS (loop0): invalid segment: Checksum error in segment payload [ 170.509265][ T6224] NILFS (loop0): trying rollback from an earlier position [ 170.520783][ T6224] NILFS (loop0): recovery complete [ 170.526417][ T6225] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6224] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6224] exit_group(0) = ? [pid 6224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6224, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./571", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./571", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./571/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./571/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./571/binderfs") = 0 umount2("./571/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./571/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./571/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./571/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./571/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./571/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./571") = 0 mkdir("./572", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6226 attached [pid 6226] chdir("./572" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6226 [pid 6226] <... chdir resumed>) = 0 [pid 6226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6226] setpgid(0, 0) = 0 [pid 6226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6226] write(3, "1000", 4) = 4 [pid 6226] close(3) = 0 [pid 6226] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6226] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6226] memfd_create("syzkaller", 0) = 3 [pid 6226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6226] 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"..., 2097152) = 2097152 [pid 6226] munmap(0x7f320ee61000, 2097152) = 0 [pid 6226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6226] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6226] close(3) = 0 [pid 6226] mkdir("./file1", 0777) = 0 [pid 6226] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6226] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6226] chdir("./file1") = 0 [pid 6226] ioctl(4, LOOP_CLR_FD) = 0 [pid 6226] close(4) = 0 [pid 6226] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6226] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6226] ftruncate(5, 33587199) = 0 [ 170.715876][ T6226] loop0: detected capacity change from 0 to 4096 [ 170.727081][ T6226] NILFS (loop0): invalid segment: Checksum error in segment payload [ 170.735102][ T6226] NILFS (loop0): trying rollback from an earlier position [ 170.746491][ T6226] NILFS (loop0): recovery complete [ 170.752156][ T6227] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6226] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6226] exit_group(0) = ? [pid 6226] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6226, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./572", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./572", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./572/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./572/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./572/binderfs") = 0 umount2("./572/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./572/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./572/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./572/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./572/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./572/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./572") = 0 mkdir("./573", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6228 attached [pid 6228] chdir("./573") = 0 [pid 6228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6228] setpgid(0, 0) = 0 [pid 6228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6228] write(3, "1000", 4) = 4 [pid 6228] close(3) = 0 [pid 6228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6228] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6228] memfd_create("syzkaller", 0) = 3 [pid 6228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6228 [pid 6228] 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"..., 2097152) = 2097152 [pid 6228] munmap(0x7f320ee61000, 2097152) = 0 [pid 6228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6228] close(3) = 0 [pid 6228] mkdir("./file1", 0777) = 0 [pid 6228] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6228] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6228] chdir("./file1") = 0 [pid 6228] ioctl(4, LOOP_CLR_FD) = 0 [pid 6228] close(4) = 0 [pid 6228] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6228] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6228] ftruncate(5, 33587199) = 0 [ 170.937161][ T6228] loop0: detected capacity change from 0 to 4096 [ 170.948795][ T6228] NILFS (loop0): invalid segment: Checksum error in segment payload [ 170.957202][ T6228] NILFS (loop0): trying rollback from an earlier position [ 170.968212][ T6228] NILFS (loop0): recovery complete [ 170.973870][ T6229] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6228] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6228] exit_group(0) = ? [pid 6228] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6228, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./573", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./573", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./573/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./573/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./573/binderfs") = 0 umount2("./573/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./573/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./573/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./573/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./573/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./573/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./573") = 0 mkdir("./574", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6230 attached [pid 6230] chdir("./574") = 0 [pid 6230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6230] setpgid(0, 0) = 0 [pid 6230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6230 [pid 6230] write(3, "1000", 4) = 4 [pid 6230] close(3) = 0 [pid 6230] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6230] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6230] memfd_create("syzkaller", 0) = 3 [pid 6230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6230] 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"..., 2097152) = 2097152 [pid 6230] munmap(0x7f320ee61000, 2097152) = 0 [pid 6230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6230] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6230] close(3) = 0 [pid 6230] mkdir("./file1", 0777) = 0 [pid 6230] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6230] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6230] chdir("./file1") = 0 [pid 6230] ioctl(4, LOOP_CLR_FD) = 0 [pid 6230] close(4) = 0 [pid 6230] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6230] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6230] ftruncate(5, 33587199) = 0 [ 171.173530][ T6230] loop0: detected capacity change from 0 to 4096 [ 171.186355][ T6230] NILFS (loop0): invalid segment: Checksum error in segment payload [ 171.194592][ T6230] NILFS (loop0): trying rollback from an earlier position [ 171.206591][ T6230] NILFS (loop0): recovery complete [ 171.212308][ T6231] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6230] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6230] exit_group(0) = ? [pid 6230] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6230, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./574", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./574", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./574/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./574/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./574/binderfs") = 0 umount2("./574/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./574/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./574/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./574/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./574/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./574/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./574") = 0 mkdir("./575", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6232 attached [pid 6232] chdir("./575") = 0 [pid 6232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6232] setpgid(0, 0) = 0 [pid 6232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6232] write(3, "1000", 4) = 4 [pid 6232] close(3) = 0 [pid 6232] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6232] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6232] memfd_create("syzkaller", 0) = 3 [pid 6232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6232 [pid 6232] 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"..., 2097152) = 2097152 [pid 6232] munmap(0x7f320ee61000, 2097152) = 0 [pid 6232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6232] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6232] close(3) = 0 [pid 6232] mkdir("./file1", 0777) = 0 [pid 6232] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6232] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6232] chdir("./file1") = 0 [pid 6232] ioctl(4, LOOP_CLR_FD) = 0 [pid 6232] close(4) = 0 [pid 6232] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6232] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6232] ftruncate(5, 33587199) = 0 [ 171.408010][ T6232] loop0: detected capacity change from 0 to 4096 [ 171.420446][ T6232] NILFS (loop0): invalid segment: Checksum error in segment payload [ 171.428466][ T6232] NILFS (loop0): trying rollback from an earlier position [ 171.440026][ T6232] NILFS (loop0): recovery complete [ 171.445730][ T6233] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6232] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6232] exit_group(0) = ? [pid 6232] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6232, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./575", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./575", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./575/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./575/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./575/binderfs") = 0 umount2("./575/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./575/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./575/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./575/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./575/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./575/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./575") = 0 mkdir("./576", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6234 attached , child_tidptr=0x555555c06690) = 6234 [pid 6234] chdir("./576") = 0 [pid 6234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6234] setpgid(0, 0) = 0 [pid 6234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6234] write(3, "1000", 4) = 4 [pid 6234] close(3) = 0 [pid 6234] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6234] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6234] memfd_create("syzkaller", 0) = 3 [pid 6234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6234] 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"..., 2097152) = 2097152 [pid 6234] munmap(0x7f320ee61000, 2097152) = 0 [pid 6234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6234] close(3) = 0 [pid 6234] mkdir("./file1", 0777) = 0 [pid 6234] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6234] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6234] chdir("./file1") = 0 [pid 6234] ioctl(4, LOOP_CLR_FD) = 0 [pid 6234] close(4) = 0 [pid 6234] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6234] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6234] ftruncate(5, 33587199) = 0 [ 171.635808][ T6234] loop0: detected capacity change from 0 to 4096 [ 171.648156][ T6234] NILFS (loop0): invalid segment: Checksum error in segment payload [ 171.656501][ T6234] NILFS (loop0): trying rollback from an earlier position [ 171.668046][ T6234] NILFS (loop0): recovery complete [ 171.673698][ T6235] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6234] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6234] exit_group(0) = ? [pid 6234] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6234, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./576", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./576", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./576/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./576/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./576/binderfs") = 0 umount2("./576/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./576/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./576/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./576/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./576/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./576/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./576") = 0 mkdir("./577", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6236 ./strace-static-x86_64: Process 6236 attached [pid 6236] chdir("./577") = 0 [pid 6236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6236] setpgid(0, 0) = 0 [pid 6236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6236] write(3, "1000", 4) = 4 [pid 6236] close(3) = 0 [pid 6236] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6236] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6236] memfd_create("syzkaller", 0) = 3 [pid 6236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6236] 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"..., 2097152) = 2097152 [pid 6236] munmap(0x7f320ee61000, 2097152) = 0 [pid 6236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6236] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6236] close(3) = 0 [pid 6236] mkdir("./file1", 0777) = 0 [pid 6236] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6236] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6236] chdir("./file1") = 0 [pid 6236] ioctl(4, LOOP_CLR_FD) = 0 [pid 6236] close(4) = 0 [pid 6236] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6236] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6236] ftruncate(5, 33587199) = 0 [ 171.862798][ T6236] loop0: detected capacity change from 0 to 4096 [ 171.875575][ T6236] NILFS (loop0): invalid segment: Checksum error in segment payload [ 171.883608][ T6236] NILFS (loop0): trying rollback from an earlier position [ 171.894997][ T6236] NILFS (loop0): recovery complete [ 171.900662][ T6237] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6236] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6236] exit_group(0) = ? [pid 6236] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6236, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./577", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./577", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./577/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./577/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./577/binderfs") = 0 umount2("./577/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./577/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./577/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./577/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./577/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./577/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./577") = 0 mkdir("./578", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6238 attached , child_tidptr=0x555555c06690) = 6238 [pid 6238] chdir("./578") = 0 [pid 6238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6238] setpgid(0, 0) = 0 [pid 6238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6238] write(3, "1000", 4) = 4 [pid 6238] close(3) = 0 [pid 6238] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6238] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6238] memfd_create("syzkaller", 0) = 3 [pid 6238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6238] 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"..., 2097152) = 2097152 [pid 6238] munmap(0x7f320ee61000, 2097152) = 0 [pid 6238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6238] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6238] close(3) = 0 [pid 6238] mkdir("./file1", 0777) = 0 [pid 6238] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6238] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6238] chdir("./file1") = 0 [pid 6238] ioctl(4, LOOP_CLR_FD) = 0 [pid 6238] close(4) = 0 [pid 6238] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6238] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6238] ftruncate(5, 33587199) = 0 [ 172.085672][ T6238] loop0: detected capacity change from 0 to 4096 [ 172.097286][ T6238] NILFS (loop0): invalid segment: Checksum error in segment payload [ 172.105395][ T6238] NILFS (loop0): trying rollback from an earlier position [ 172.116703][ T6238] NILFS (loop0): recovery complete [ 172.122424][ T6239] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6238] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6238] exit_group(0) = ? [pid 6238] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6238, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./578", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./578", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./578/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./578/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./578/binderfs") = 0 umount2("./578/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./578/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./578/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./578/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./578/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./578/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./578") = 0 mkdir("./579", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6240 ./strace-static-x86_64: Process 6240 attached [pid 6240] chdir("./579") = 0 [pid 6240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6240] setpgid(0, 0) = 0 [pid 6240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6240] write(3, "1000", 4) = 4 [pid 6240] close(3) = 0 [pid 6240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6240] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6240] memfd_create("syzkaller", 0) = 3 [pid 6240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6240] 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"..., 2097152) = 2097152 [pid 6240] munmap(0x7f320ee61000, 2097152) = 0 [pid 6240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6240] close(3) = 0 [pid 6240] mkdir("./file1", 0777) = 0 [pid 6240] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6240] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6240] chdir("./file1") = 0 [pid 6240] ioctl(4, LOOP_CLR_FD) = 0 [pid 6240] close(4) = 0 [pid 6240] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6240] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6240] ftruncate(5, 33587199) = 0 [ 172.321436][ T6240] loop0: detected capacity change from 0 to 4096 [ 172.332648][ T6240] NILFS (loop0): invalid segment: Checksum error in segment payload [ 172.340661][ T6240] NILFS (loop0): trying rollback from an earlier position [ 172.351586][ T6240] NILFS (loop0): recovery complete [ 172.357369][ T6241] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6240] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6240] exit_group(0) = ? [pid 6240] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6240, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./579", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./579", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./579/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./579/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./579/binderfs") = 0 umount2("./579/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./579/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./579/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./579/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./579/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./579/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./579") = 0 mkdir("./580", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6242 attached , child_tidptr=0x555555c06690) = 6242 [pid 6242] chdir("./580") = 0 [pid 6242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6242] setpgid(0, 0) = 0 [pid 6242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6242] write(3, "1000", 4) = 4 [pid 6242] close(3) = 0 [pid 6242] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6242] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6242] memfd_create("syzkaller", 0) = 3 [pid 6242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6242] 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"..., 2097152) = 2097152 [pid 6242] munmap(0x7f320ee61000, 2097152) = 0 [pid 6242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6242] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6242] close(3) = 0 [pid 6242] mkdir("./file1", 0777) = 0 [pid 6242] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6242] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6242] chdir("./file1") = 0 [pid 6242] ioctl(4, LOOP_CLR_FD) = 0 [pid 6242] close(4) = 0 [pid 6242] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6242] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6242] ftruncate(5, 33587199) = 0 [ 172.536875][ T6242] loop0: detected capacity change from 0 to 4096 [ 172.548577][ T6242] NILFS (loop0): invalid segment: Checksum error in segment payload [ 172.556773][ T6242] NILFS (loop0): trying rollback from an earlier position [ 172.567899][ T6242] NILFS (loop0): recovery complete [ 172.573851][ T6243] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6242] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6242] exit_group(0) = ? [pid 6242] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6242, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./580", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./580", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./580/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./580/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./580/binderfs") = 0 umount2("./580/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./580/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./580/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./580/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./580/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./580/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./580") = 0 mkdir("./581", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6244 ./strace-static-x86_64: Process 6244 attached [pid 6244] chdir("./581") = 0 [pid 6244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6244] setpgid(0, 0) = 0 [pid 6244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6244] write(3, "1000", 4) = 4 [pid 6244] close(3) = 0 [pid 6244] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6244] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6244] memfd_create("syzkaller", 0) = 3 [pid 6244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6244] 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"..., 2097152) = 2097152 [pid 6244] munmap(0x7f320ee61000, 2097152) = 0 [pid 6244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6244] close(3) = 0 [pid 6244] mkdir("./file1", 0777) = 0 [pid 6244] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6244] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6244] chdir("./file1") = 0 [pid 6244] ioctl(4, LOOP_CLR_FD) = 0 [pid 6244] close(4) = 0 [pid 6244] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6244] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6244] ftruncate(5, 33587199) = 0 [ 172.758534][ T6244] loop0: detected capacity change from 0 to 4096 [ 172.771900][ T6244] NILFS (loop0): invalid segment: Checksum error in segment payload [ 172.779939][ T6244] NILFS (loop0): trying rollback from an earlier position [ 172.791079][ T6244] NILFS (loop0): recovery complete [ 172.796700][ T6245] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6244] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6244] exit_group(0) = ? [pid 6244] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6244, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./581", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./581", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./581/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./581/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./581/binderfs") = 0 umount2("./581/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./581/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./581/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./581/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./581/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./581/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./581") = 0 mkdir("./582", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6246 ./strace-static-x86_64: Process 6246 attached [pid 6246] chdir("./582") = 0 [pid 6246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6246] setpgid(0, 0) = 0 [pid 6246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6246] write(3, "1000", 4) = 4 [pid 6246] close(3) = 0 [pid 6246] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6246] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6246] memfd_create("syzkaller", 0) = 3 [pid 6246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6246] 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"..., 2097152) = 2097152 [pid 6246] munmap(0x7f320ee61000, 2097152) = 0 [pid 6246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6246] close(3) = 0 [pid 6246] mkdir("./file1", 0777) = 0 [pid 6246] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6246] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6246] chdir("./file1") = 0 [pid 6246] ioctl(4, LOOP_CLR_FD) = 0 [pid 6246] close(4) = 0 [pid 6246] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6246] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6246] ftruncate(5, 33587199) = 0 [ 172.988616][ T6246] loop0: detected capacity change from 0 to 4096 [ 173.001301][ T6246] NILFS (loop0): invalid segment: Checksum error in segment payload [ 173.009287][ T6246] NILFS (loop0): trying rollback from an earlier position [ 173.020701][ T6246] NILFS (loop0): recovery complete [ 173.026286][ T6247] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6246] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6246] exit_group(0) = ? [pid 6246] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6246, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./582", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./582", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./582/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./582/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./582/binderfs") = 0 umount2("./582/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./582/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./582/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./582/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./582/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./582/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./582") = 0 mkdir("./583", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6248 ./strace-static-x86_64: Process 6248 attached [pid 6248] chdir("./583") = 0 [pid 6248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6248] setpgid(0, 0) = 0 [pid 6248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6248] write(3, "1000", 4) = 4 [pid 6248] close(3) = 0 [pid 6248] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6248] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6248] memfd_create("syzkaller", 0) = 3 [pid 6248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6248] 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"..., 2097152) = 2097152 [pid 6248] munmap(0x7f320ee61000, 2097152) = 0 [pid 6248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6248] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6248] close(3) = 0 [pid 6248] mkdir("./file1", 0777) = 0 [pid 6248] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6248] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6248] chdir("./file1") = 0 [pid 6248] ioctl(4, LOOP_CLR_FD) = 0 [pid 6248] close(4) = 0 [pid 6248] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6248] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6248] ftruncate(5, 33587199) = 0 [ 173.211623][ T6248] loop0: detected capacity change from 0 to 4096 [ 173.223229][ T6248] NILFS (loop0): invalid segment: Checksum error in segment payload [ 173.231296][ T6248] NILFS (loop0): trying rollback from an earlier position [ 173.242074][ T6248] NILFS (loop0): recovery complete [ 173.247659][ T6249] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6248] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6248] exit_group(0) = ? [pid 6248] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6248, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./583", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./583", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./583/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./583/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./583/binderfs") = 0 umount2("./583/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./583/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./583/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./583/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./583/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./583/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./583") = 0 mkdir("./584", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6250 ./strace-static-x86_64: Process 6250 attached [pid 6250] chdir("./584") = 0 [pid 6250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6250] setpgid(0, 0) = 0 [pid 6250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6250] write(3, "1000", 4) = 4 [pid 6250] close(3) = 0 [pid 6250] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6250] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6250] memfd_create("syzkaller", 0) = 3 [pid 6250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6250] 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"..., 2097152) = 2097152 [pid 6250] munmap(0x7f320ee61000, 2097152) = 0 [pid 6250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6250] close(3) = 0 [pid 6250] mkdir("./file1", 0777) = 0 [pid 6250] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6250] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6250] chdir("./file1") = 0 [pid 6250] ioctl(4, LOOP_CLR_FD) = 0 [pid 6250] close(4) = 0 [pid 6250] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6250] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6250] ftruncate(5, 33587199) = 0 [ 173.436371][ T6250] loop0: detected capacity change from 0 to 4096 [ 173.448935][ T6250] NILFS (loop0): invalid segment: Checksum error in segment payload [ 173.457225][ T6250] NILFS (loop0): trying rollback from an earlier position [ 173.468542][ T6250] NILFS (loop0): recovery complete [ 173.474353][ T6251] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6250] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6250] exit_group(0) = ? [pid 6250] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6250, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./584", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./584", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./584/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./584/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./584/binderfs") = 0 umount2("./584/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./584/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./584/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./584/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./584/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./584/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./584") = 0 mkdir("./585", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6252 ./strace-static-x86_64: Process 6252 attached [pid 6252] chdir("./585") = 0 [pid 6252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6252] setpgid(0, 0) = 0 [pid 6252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6252] write(3, "1000", 4) = 4 [pid 6252] close(3) = 0 [pid 6252] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6252] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6252] memfd_create("syzkaller", 0) = 3 [pid 6252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6252] 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"..., 2097152) = 2097152 [pid 6252] munmap(0x7f320ee61000, 2097152) = 0 [pid 6252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6252] close(3) = 0 [pid 6252] mkdir("./file1", 0777) = 0 [pid 6252] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6252] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6252] chdir("./file1") = 0 [pid 6252] ioctl(4, LOOP_CLR_FD) = 0 [pid 6252] close(4) = 0 [pid 6252] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6252] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6252] ftruncate(5, 33587199) = 0 [ 173.665156][ T6252] loop0: detected capacity change from 0 to 4096 [ 173.677999][ T6252] NILFS (loop0): invalid segment: Checksum error in segment payload [ 173.686125][ T6252] NILFS (loop0): trying rollback from an earlier position [ 173.697363][ T6252] NILFS (loop0): recovery complete [ 173.703249][ T6253] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6252] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6252] exit_group(0) = ? [pid 6252] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6252, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./585", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./585", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./585/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./585/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./585/binderfs") = 0 umount2("./585/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./585/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./585/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./585/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./585/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./585/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./585") = 0 mkdir("./586", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6254 attached [pid 6254] chdir("./586") = 0 [pid 6254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6254] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6254 [pid 6254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6254] write(3, "1000", 4) = 4 [pid 6254] close(3) = 0 [pid 6254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6254] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6254] memfd_create("syzkaller", 0) = 3 [pid 6254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6254] 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"..., 2097152) = 2097152 [pid 6254] munmap(0x7f320ee61000, 2097152) = 0 [pid 6254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6254] close(3) = 0 [pid 6254] mkdir("./file1", 0777) = 0 [pid 6254] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6254] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6254] chdir("./file1") = 0 [pid 6254] ioctl(4, LOOP_CLR_FD) = 0 [pid 6254] close(4) = 0 [pid 6254] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6254] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6254] ftruncate(5, 33587199) = 0 [ 173.898544][ T6254] loop0: detected capacity change from 0 to 4096 [ 173.911557][ T6254] NILFS (loop0): invalid segment: Checksum error in segment payload [ 173.919599][ T6254] NILFS (loop0): trying rollback from an earlier position [ 173.930998][ T6254] NILFS (loop0): recovery complete [ 173.936863][ T6255] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6254] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6254] exit_group(0) = ? [pid 6254] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6254, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./586", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./586", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./586/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./586/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./586/binderfs") = 0 umount2("./586/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./586/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./586/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./586/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./586/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./586/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./586") = 0 mkdir("./587", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6256 ./strace-static-x86_64: Process 6256 attached [pid 6256] chdir("./587") = 0 [pid 6256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6256] setpgid(0, 0) = 0 [pid 6256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6256] write(3, "1000", 4) = 4 [pid 6256] close(3) = 0 [pid 6256] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6256] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6256] memfd_create("syzkaller", 0) = 3 [pid 6256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6256] 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"..., 2097152) = 2097152 [pid 6256] munmap(0x7f320ee61000, 2097152) = 0 [pid 6256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6256] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6256] close(3) = 0 [pid 6256] mkdir("./file1", 0777) = 0 [pid 6256] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6256] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6256] chdir("./file1") = 0 [pid 6256] ioctl(4, LOOP_CLR_FD) = 0 [pid 6256] close(4) = 0 [pid 6256] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6256] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6256] ftruncate(5, 33587199) = 0 [ 174.125445][ T6256] loop0: detected capacity change from 0 to 4096 [ 174.137790][ T6256] NILFS (loop0): invalid segment: Checksum error in segment payload [ 174.145980][ T6256] NILFS (loop0): trying rollback from an earlier position [ 174.157309][ T6256] NILFS (loop0): recovery complete [ 174.162995][ T6257] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6256] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6256] exit_group(0) = ? [pid 6256] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6256, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./587", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./587", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./587/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./587/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./587/binderfs") = 0 umount2("./587/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./587/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./587/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./587/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./587/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./587/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./587") = 0 mkdir("./588", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6258 attached , child_tidptr=0x555555c06690) = 6258 [pid 6258] chdir("./588") = 0 [pid 6258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6258] setpgid(0, 0) = 0 [pid 6258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6258] write(3, "1000", 4) = 4 [pid 6258] close(3) = 0 [pid 6258] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6258] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6258] memfd_create("syzkaller", 0) = 3 [pid 6258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6258] 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"..., 2097152) = 2097152 [pid 6258] munmap(0x7f320ee61000, 2097152) = 0 [pid 6258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6258] close(3) = 0 [pid 6258] mkdir("./file1", 0777) = 0 [pid 6258] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6258] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6258] chdir("./file1") = 0 [pid 6258] ioctl(4, LOOP_CLR_FD) = 0 [pid 6258] close(4) = 0 [pid 6258] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6258] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6258] ftruncate(5, 33587199) = 0 [ 174.351366][ T6258] loop0: detected capacity change from 0 to 4096 [ 174.363893][ T6258] NILFS (loop0): invalid segment: Checksum error in segment payload [ 174.372207][ T6258] NILFS (loop0): trying rollback from an earlier position [ 174.383248][ T6258] NILFS (loop0): recovery complete [ 174.389037][ T6259] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6258] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6258] exit_group(0) = ? [pid 6258] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6258, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./588", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./588", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./588/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./588/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./588/binderfs") = 0 umount2("./588/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./588/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./588/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./588/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./588/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./588/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./588") = 0 mkdir("./589", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6260 ./strace-static-x86_64: Process 6260 attached [pid 6260] chdir("./589") = 0 [pid 6260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6260] setpgid(0, 0) = 0 [pid 6260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6260] write(3, "1000", 4) = 4 [pid 6260] close(3) = 0 [pid 6260] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6260] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6260] memfd_create("syzkaller", 0) = 3 [pid 6260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6260] 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"..., 2097152) = 2097152 [pid 6260] munmap(0x7f320ee61000, 2097152) = 0 [pid 6260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6260] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6260] close(3) = 0 [pid 6260] mkdir("./file1", 0777) = 0 [pid 6260] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6260] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6260] chdir("./file1") = 0 [pid 6260] ioctl(4, LOOP_CLR_FD) = 0 [pid 6260] close(4) = 0 [pid 6260] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6260] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6260] ftruncate(5, 33587199) = 0 [ 174.583749][ T6260] loop0: detected capacity change from 0 to 4096 [ 174.595390][ T6260] NILFS (loop0): invalid segment: Checksum error in segment payload [ 174.603814][ T6260] NILFS (loop0): trying rollback from an earlier position [ 174.615562][ T6260] NILFS (loop0): recovery complete [ 174.621469][ T6261] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6260] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6260] exit_group(0) = ? [pid 6260] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6260, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./589", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./589", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./589/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./589/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./589/binderfs") = 0 umount2("./589/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./589/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./589/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./589/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./589/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./589/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./589") = 0 mkdir("./590", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6262 ./strace-static-x86_64: Process 6262 attached [pid 6262] chdir("./590") = 0 [pid 6262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6262] setpgid(0, 0) = 0 [pid 6262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6262] write(3, "1000", 4) = 4 [pid 6262] close(3) = 0 [pid 6262] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6262] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6262] memfd_create("syzkaller", 0) = 3 [pid 6262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6262] 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"..., 2097152) = 2097152 [pid 6262] munmap(0x7f320ee61000, 2097152) = 0 [pid 6262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6262] close(3) = 0 [pid 6262] mkdir("./file1", 0777) = 0 [pid 6262] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6262] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6262] chdir("./file1") = 0 [pid 6262] ioctl(4, LOOP_CLR_FD) = 0 [pid 6262] close(4) = 0 [pid 6262] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6262] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6262] ftruncate(5, 33587199) = 0 [ 174.807702][ T6262] loop0: detected capacity change from 0 to 4096 [ 174.820739][ T6262] NILFS (loop0): invalid segment: Checksum error in segment payload [ 174.828720][ T6262] NILFS (loop0): trying rollback from an earlier position [ 174.841212][ T6262] NILFS (loop0): recovery complete [ 174.846967][ T6263] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6262] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6262] exit_group(0) = ? [pid 6262] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6262, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./590", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./590", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./590/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./590/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./590/binderfs") = 0 umount2("./590/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./590/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./590/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./590/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./590/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./590/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./590") = 0 mkdir("./591", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6264 ./strace-static-x86_64: Process 6264 attached [pid 6264] chdir("./591") = 0 [pid 6264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6264] setpgid(0, 0) = 0 [pid 6264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6264] write(3, "1000", 4) = 4 [pid 6264] close(3) = 0 [pid 6264] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6264] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6264] memfd_create("syzkaller", 0) = 3 [pid 6264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6264] 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"..., 2097152) = 2097152 [pid 6264] munmap(0x7f320ee61000, 2097152) = 0 [pid 6264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6264] close(3) = 0 [pid 6264] mkdir("./file1", 0777) = 0 [pid 6264] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6264] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6264] chdir("./file1") = 0 [pid 6264] ioctl(4, LOOP_CLR_FD) = 0 [pid 6264] close(4) = 0 [pid 6264] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6264] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6264] ftruncate(5, 33587199) = 0 [ 175.034380][ T6264] loop0: detected capacity change from 0 to 4096 [ 175.047446][ T6264] NILFS (loop0): invalid segment: Checksum error in segment payload [ 175.055766][ T6264] NILFS (loop0): trying rollback from an earlier position [ 175.066807][ T6264] NILFS (loop0): recovery complete [ 175.072408][ T6265] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6264] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6264] exit_group(0) = ? [pid 6264] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6264, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./591", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./591", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./591/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./591/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./591/binderfs") = 0 umount2("./591/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./591/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./591/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./591/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./591/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./591/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./591") = 0 mkdir("./592", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6266 ./strace-static-x86_64: Process 6266 attached [pid 6266] chdir("./592") = 0 [pid 6266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6266] setpgid(0, 0) = 0 [pid 6266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6266] write(3, "1000", 4) = 4 [pid 6266] close(3) = 0 [pid 6266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6266] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6266] memfd_create("syzkaller", 0) = 3 [pid 6266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6266] 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"..., 2097152) = 2097152 [pid 6266] munmap(0x7f320ee61000, 2097152) = 0 [pid 6266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6266] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6266] close(3) = 0 [pid 6266] mkdir("./file1", 0777) = 0 [pid 6266] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6266] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6266] chdir("./file1") = 0 [pid 6266] ioctl(4, LOOP_CLR_FD) = 0 [pid 6266] close(4) = 0 [pid 6266] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6266] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6266] ftruncate(5, 33587199) = 0 [ 175.249199][ T6266] loop0: detected capacity change from 0 to 4096 [ 175.262278][ T6266] NILFS (loop0): invalid segment: Checksum error in segment payload [ 175.270908][ T6266] NILFS (loop0): trying rollback from an earlier position [ 175.282077][ T6266] NILFS (loop0): recovery complete [ 175.287935][ T6267] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6266] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6266] exit_group(0) = ? [pid 6266] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6266, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./592", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./592", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./592/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./592/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./592/binderfs") = 0 umount2("./592/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./592/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./592/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./592/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./592/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./592/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./592") = 0 mkdir("./593", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6268 ./strace-static-x86_64: Process 6268 attached [pid 6268] chdir("./593") = 0 [pid 6268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6268] setpgid(0, 0) = 0 [pid 6268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6268] write(3, "1000", 4) = 4 [pid 6268] close(3) = 0 [pid 6268] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6268] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6268] memfd_create("syzkaller", 0) = 3 [pid 6268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6268] 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"..., 2097152) = 2097152 [pid 6268] munmap(0x7f320ee61000, 2097152) = 0 [pid 6268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6268] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6268] close(3) = 0 [pid 6268] mkdir("./file1", 0777) = 0 [pid 6268] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6268] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6268] chdir("./file1") = 0 [pid 6268] ioctl(4, LOOP_CLR_FD) = 0 [pid 6268] close(4) = 0 [pid 6268] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6268] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6268] ftruncate(5, 33587199) = 0 [ 175.463928][ T6268] loop0: detected capacity change from 0 to 4096 [ 175.475895][ T6268] NILFS (loop0): invalid segment: Checksum error in segment payload [ 175.483962][ T6268] NILFS (loop0): trying rollback from an earlier position [ 175.495096][ T6268] NILFS (loop0): recovery complete [ 175.500902][ T6269] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6268] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6268] exit_group(0) = ? [pid 6268] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6268, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./593", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./593", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./593/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./593/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./593/binderfs") = 0 umount2("./593/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./593/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./593/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./593/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./593/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./593/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./593") = 0 mkdir("./594", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6270 ./strace-static-x86_64: Process 6270 attached [pid 6270] chdir("./594") = 0 [pid 6270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6270] setpgid(0, 0) = 0 [pid 6270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6270] write(3, "1000", 4) = 4 [pid 6270] close(3) = 0 [pid 6270] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6270] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6270] memfd_create("syzkaller", 0) = 3 [pid 6270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6270] 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"..., 2097152) = 2097152 [pid 6270] munmap(0x7f320ee61000, 2097152) = 0 [pid 6270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6270] close(3) = 0 [pid 6270] mkdir("./file1", 0777) = 0 [pid 6270] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6270] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6270] chdir("./file1") = 0 [pid 6270] ioctl(4, LOOP_CLR_FD) = 0 [pid 6270] close(4) = 0 [pid 6270] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6270] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6270] ftruncate(5, 33587199) = 0 [ 175.697092][ T6270] loop0: detected capacity change from 0 to 4096 [ 175.709091][ T6270] NILFS (loop0): invalid segment: Checksum error in segment payload [ 175.717136][ T6270] NILFS (loop0): trying rollback from an earlier position [ 175.728114][ T6270] NILFS (loop0): recovery complete [ 175.733979][ T6271] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6270] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6270] exit_group(0) = ? [pid 6270] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6270, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./594", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./594", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./594/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./594/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./594/binderfs") = 0 umount2("./594/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./594/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./594/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./594/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./594/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./594/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./594") = 0 mkdir("./595", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6272 attached , child_tidptr=0x555555c06690) = 6272 [pid 6272] chdir("./595") = 0 [pid 6272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6272] setpgid(0, 0) = 0 [pid 6272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6272] write(3, "1000", 4) = 4 [pid 6272] close(3) = 0 [pid 6272] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6272] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6272] memfd_create("syzkaller", 0) = 3 [pid 6272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6272] 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"..., 2097152) = 2097152 [pid 6272] munmap(0x7f320ee61000, 2097152) = 0 [pid 6272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6272] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6272] close(3) = 0 [pid 6272] mkdir("./file1", 0777) = 0 [pid 6272] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6272] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6272] chdir("./file1") = 0 [pid 6272] ioctl(4, LOOP_CLR_FD) = 0 [pid 6272] close(4) = 0 [pid 6272] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6272] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6272] ftruncate(5, 33587199) = 0 [ 175.928431][ T6272] loop0: detected capacity change from 0 to 4096 [ 175.940430][ T6272] NILFS (loop0): invalid segment: Checksum error in segment payload [ 175.948445][ T6272] NILFS (loop0): trying rollback from an earlier position [ 175.960036][ T6272] NILFS (loop0): recovery complete [ 175.965742][ T6273] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6272] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6272] exit_group(0) = ? [pid 6272] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6272, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./595", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./595", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./595/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./595/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./595/binderfs") = 0 umount2("./595/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./595/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./595/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./595/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./595/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./595/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./595") = 0 mkdir("./596", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6274 ./strace-static-x86_64: Process 6274 attached [pid 6274] chdir("./596") = 0 [pid 6274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6274] setpgid(0, 0) = 0 [pid 6274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6274] write(3, "1000", 4) = 4 [pid 6274] close(3) = 0 [pid 6274] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6274] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6274] memfd_create("syzkaller", 0) = 3 [pid 6274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6274] 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"..., 2097152) = 2097152 [pid 6274] munmap(0x7f320ee61000, 2097152) = 0 [pid 6274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6274] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6274] close(3) = 0 [pid 6274] mkdir("./file1", 0777) = 0 [pid 6274] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6274] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6274] chdir("./file1") = 0 [pid 6274] ioctl(4, LOOP_CLR_FD) = 0 [pid 6274] close(4) = 0 [pid 6274] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6274] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6274] ftruncate(5, 33587199) = 0 [ 176.154776][ T6274] loop0: detected capacity change from 0 to 4096 [ 176.166604][ T6274] NILFS (loop0): invalid segment: Checksum error in segment payload [ 176.174842][ T6274] NILFS (loop0): trying rollback from an earlier position [ 176.185997][ T6274] NILFS (loop0): recovery complete [ 176.191729][ T6275] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6274] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6274] exit_group(0) = ? [pid 6274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6274, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./596", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./596", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./596/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./596/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./596/binderfs") = 0 umount2("./596/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./596/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./596/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./596/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./596/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./596/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./596") = 0 mkdir("./597", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6276 ./strace-static-x86_64: Process 6276 attached [pid 6276] chdir("./597") = 0 [pid 6276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6276] setpgid(0, 0) = 0 [pid 6276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6276] write(3, "1000", 4) = 4 [pid 6276] close(3) = 0 [pid 6276] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6276] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6276] memfd_create("syzkaller", 0) = 3 [pid 6276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6276] 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"..., 2097152) = 2097152 [pid 6276] munmap(0x7f320ee61000, 2097152) = 0 [pid 6276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6276] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6276] close(3) = 0 [pid 6276] mkdir("./file1", 0777) = 0 [pid 6276] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6276] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6276] chdir("./file1") = 0 [pid 6276] ioctl(4, LOOP_CLR_FD) = 0 [pid 6276] close(4) = 0 [pid 6276] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6276] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6276] ftruncate(5, 33587199) = 0 [ 176.378421][ T6276] loop0: detected capacity change from 0 to 4096 [ 176.391448][ T6276] NILFS (loop0): invalid segment: Checksum error in segment payload [ 176.399505][ T6276] NILFS (loop0): trying rollback from an earlier position [ 176.411429][ T6276] NILFS (loop0): recovery complete [ 176.417212][ T6277] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6276] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6276] exit_group(0) = ? [pid 6276] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6276, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./597", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./597", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./597/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./597/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./597/binderfs") = 0 umount2("./597/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./597/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./597/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./597/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./597/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./597/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./597") = 0 mkdir("./598", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6278 ./strace-static-x86_64: Process 6278 attached [pid 6278] chdir("./598") = 0 [pid 6278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6278] setpgid(0, 0) = 0 [pid 6278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6278] write(3, "1000", 4) = 4 [pid 6278] close(3) = 0 [pid 6278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6278] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6278] memfd_create("syzkaller", 0) = 3 [pid 6278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6278] 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"..., 2097152) = 2097152 [pid 6278] munmap(0x7f320ee61000, 2097152) = 0 [pid 6278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6278] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6278] close(3) = 0 [pid 6278] mkdir("./file1", 0777) = 0 [pid 6278] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6278] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6278] chdir("./file1") = 0 [pid 6278] ioctl(4, LOOP_CLR_FD) = 0 [pid 6278] close(4) = 0 [pid 6278] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6278] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6278] ftruncate(5, 33587199) = 0 [ 176.604193][ T6278] loop0: detected capacity change from 0 to 4096 [ 176.616093][ T6278] NILFS (loop0): invalid segment: Checksum error in segment payload [ 176.624332][ T6278] NILFS (loop0): trying rollback from an earlier position [ 176.635898][ T6278] NILFS (loop0): recovery complete [ 176.641665][ T6279] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6278] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6278] exit_group(0) = ? [pid 6278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6278, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./598", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./598", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./598/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./598/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./598/binderfs") = 0 umount2("./598/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./598/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./598/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./598/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./598/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./598/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./598") = 0 mkdir("./599", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6280 attached [pid 6280] chdir("./599") = 0 [pid 6280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6280] setpgid(0, 0) = 0 [pid 6280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6280] write(3, "1000", 4) = 4 [pid 6280] close(3) = 0 [pid 6280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6280] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6280] memfd_create("syzkaller", 0) = 3 [pid 6280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6280 [pid 6280] 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"..., 2097152) = 2097152 [pid 6280] munmap(0x7f320ee61000, 2097152) = 0 [pid 6280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6280] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6280] close(3) = 0 [pid 6280] mkdir("./file1", 0777) = 0 [pid 6280] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6280] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6280] chdir("./file1") = 0 [pid 6280] ioctl(4, LOOP_CLR_FD) = 0 [pid 6280] close(4) = 0 [pid 6280] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6280] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6280] ftruncate(5, 33587199) = 0 [ 176.836064][ T6280] loop0: detected capacity change from 0 to 4096 [ 176.849138][ T6280] NILFS (loop0): invalid segment: Checksum error in segment payload [ 176.857245][ T6280] NILFS (loop0): trying rollback from an earlier position [ 176.869121][ T6280] NILFS (loop0): recovery complete [ 176.875064][ T6281] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6280] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6280] exit_group(0) = ? [pid 6280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6280, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./599", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./599", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./599/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./599/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./599/binderfs") = 0 umount2("./599/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./599/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./599/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./599/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./599/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./599/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./599") = 0 mkdir("./600", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6282 attached , child_tidptr=0x555555c06690) = 6282 [pid 6282] chdir("./600") = 0 [pid 6282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6282] setpgid(0, 0) = 0 [pid 6282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6282] write(3, "1000", 4) = 4 [pid 6282] close(3) = 0 [pid 6282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6282] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6282] memfd_create("syzkaller", 0) = 3 [pid 6282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6282] 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"..., 2097152) = 2097152 [pid 6282] munmap(0x7f320ee61000, 2097152) = 0 [pid 6282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6282] close(3) = 0 [pid 6282] mkdir("./file1", 0777) = 0 [pid 6282] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6282] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6282] chdir("./file1") = 0 [pid 6282] ioctl(4, LOOP_CLR_FD) = 0 [pid 6282] close(4) = 0 [pid 6282] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6282] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6282] ftruncate(5, 33587199) = 0 [ 177.065302][ T6282] loop0: detected capacity change from 0 to 4096 [ 177.077461][ T6282] NILFS (loop0): invalid segment: Checksum error in segment payload [ 177.085550][ T6282] NILFS (loop0): trying rollback from an earlier position [ 177.096956][ T6282] NILFS (loop0): recovery complete [ 177.102956][ T6283] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6282] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6282] exit_group(0) = ? [pid 6282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6282, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./600", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./600", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./600/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./600/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./600/binderfs") = 0 umount2("./600/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./600/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./600/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./600/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./600/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./600/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./600") = 0 mkdir("./601", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6284 ./strace-static-x86_64: Process 6284 attached [pid 6284] chdir("./601") = 0 [pid 6284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6284] setpgid(0, 0) = 0 [pid 6284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6284] write(3, "1000", 4) = 4 [pid 6284] close(3) = 0 [pid 6284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6284] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6284] memfd_create("syzkaller", 0) = 3 [pid 6284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6284] 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"..., 2097152) = 2097152 [pid 6284] munmap(0x7f320ee61000, 2097152) = 0 [pid 6284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6284] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6284] close(3) = 0 [pid 6284] mkdir("./file1", 0777) = 0 [pid 6284] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6284] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6284] chdir("./file1") = 0 [pid 6284] ioctl(4, LOOP_CLR_FD) = 0 [pid 6284] close(4) = 0 [pid 6284] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6284] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6284] ftruncate(5, 33587199) = 0 [ 177.295892][ T6284] loop0: detected capacity change from 0 to 4096 [ 177.308028][ T6284] NILFS (loop0): invalid segment: Checksum error in segment payload [ 177.316153][ T6284] NILFS (loop0): trying rollback from an earlier position [ 177.327565][ T6284] NILFS (loop0): recovery complete [ 177.333221][ T6285] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6284] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6284] exit_group(0) = ? [pid 6284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6284, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./601", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./601", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./601/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./601/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./601/binderfs") = 0 umount2("./601/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./601/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./601/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./601/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./601/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./601/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./601") = 0 mkdir("./602", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6286 ./strace-static-x86_64: Process 6286 attached [pid 6286] chdir("./602") = 0 [pid 6286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6286] setpgid(0, 0) = 0 [pid 6286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6286] write(3, "1000", 4) = 4 [pid 6286] close(3) = 0 [pid 6286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6286] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6286] memfd_create("syzkaller", 0) = 3 [pid 6286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6286] 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"..., 2097152) = 2097152 [pid 6286] munmap(0x7f320ee61000, 2097152) = 0 [pid 6286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6286] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6286] close(3) = 0 [pid 6286] mkdir("./file1", 0777) = 0 [pid 6286] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6286] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6286] chdir("./file1") = 0 [pid 6286] ioctl(4, LOOP_CLR_FD) = 0 [pid 6286] close(4) = 0 [pid 6286] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6286] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6286] ftruncate(5, 33587199) = 0 [ 177.517977][ T6286] loop0: detected capacity change from 0 to 4096 [ 177.531871][ T6286] NILFS (loop0): invalid segment: Checksum error in segment payload [ 177.539875][ T6286] NILFS (loop0): trying rollback from an earlier position [ 177.551642][ T6286] NILFS (loop0): recovery complete [ 177.557297][ T6287] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6286] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6286] exit_group(0) = ? [pid 6286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6286, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./602", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./602", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./602/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./602/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./602/binderfs") = 0 umount2("./602/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./602/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./602/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./602/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./602/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./602/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./602") = 0 mkdir("./603", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6288 ./strace-static-x86_64: Process 6288 attached [pid 6288] chdir("./603") = 0 [pid 6288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6288] setpgid(0, 0) = 0 [pid 6288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6288] write(3, "1000", 4) = 4 [pid 6288] close(3) = 0 [pid 6288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6288] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6288] memfd_create("syzkaller", 0) = 3 [pid 6288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6288] 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"..., 2097152) = 2097152 [pid 6288] munmap(0x7f320ee61000, 2097152) = 0 [pid 6288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6288] close(3) = 0 [pid 6288] mkdir("./file1", 0777) = 0 [pid 6288] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6288] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6288] chdir("./file1") = 0 [pid 6288] ioctl(4, LOOP_CLR_FD) = 0 [pid 6288] close(4) = 0 [pid 6288] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6288] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6288] ftruncate(5, 33587199) = 0 [ 177.742608][ T6288] loop0: detected capacity change from 0 to 4096 [ 177.754606][ T6288] NILFS (loop0): invalid segment: Checksum error in segment payload [ 177.762662][ T6288] NILFS (loop0): trying rollback from an earlier position [ 177.773658][ T6288] NILFS (loop0): recovery complete [ 177.779337][ T6289] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6288] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6288] exit_group(0) = ? [pid 6288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6288, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./603", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./603", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./603/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./603/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./603/binderfs") = 0 umount2("./603/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./603/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./603/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./603/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./603/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./603/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./603") = 0 mkdir("./604", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6290 ./strace-static-x86_64: Process 6290 attached [pid 6290] chdir("./604") = 0 [pid 6290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6290] setpgid(0, 0) = 0 [pid 6290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6290] write(3, "1000", 4) = 4 [pid 6290] close(3) = 0 [pid 6290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6290] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6290] memfd_create("syzkaller", 0) = 3 [pid 6290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6290] 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"..., 2097152) = 2097152 [pid 6290] munmap(0x7f320ee61000, 2097152) = 0 [pid 6290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6290] close(3) = 0 [pid 6290] mkdir("./file1", 0777) = 0 [pid 6290] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6290] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6290] chdir("./file1") = 0 [pid 6290] ioctl(4, LOOP_CLR_FD) = 0 [pid 6290] close(4) = 0 [pid 6290] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6290] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6290] ftruncate(5, 33587199) = 0 [ 177.973537][ T6290] loop0: detected capacity change from 0 to 4096 [ 177.984842][ T6290] NILFS (loop0): invalid segment: Checksum error in segment payload [ 177.993188][ T6290] NILFS (loop0): trying rollback from an earlier position [ 178.004431][ T6290] NILFS (loop0): recovery complete [ 178.010471][ T6291] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6290] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6290] exit_group(0) = ? [pid 6290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6290, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./604", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./604", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./604/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./604/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./604/binderfs") = 0 umount2("./604/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./604/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./604/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./604/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./604/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./604/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./604") = 0 mkdir("./605", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6292 attached , child_tidptr=0x555555c06690) = 6292 [pid 6292] chdir("./605") = 0 [pid 6292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6292] setpgid(0, 0) = 0 [pid 6292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6292] write(3, "1000", 4) = 4 [pid 6292] close(3) = 0 [pid 6292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6292] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6292] memfd_create("syzkaller", 0) = 3 [pid 6292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6292] 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"..., 2097152) = 2097152 [pid 6292] munmap(0x7f320ee61000, 2097152) = 0 [pid 6292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6292] close(3) = 0 [pid 6292] mkdir("./file1", 0777) = 0 [pid 6292] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6292] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6292] chdir("./file1") = 0 [pid 6292] ioctl(4, LOOP_CLR_FD) = 0 [pid 6292] close(4) = 0 [pid 6292] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6292] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6292] ftruncate(5, 33587199) = 0 [ 178.216111][ T6292] loop0: detected capacity change from 0 to 4096 [ 178.227182][ T6292] NILFS (loop0): invalid segment: Checksum error in segment payload [ 178.235315][ T6292] NILFS (loop0): trying rollback from an earlier position [ 178.245923][ T6292] NILFS (loop0): recovery complete [ 178.251910][ T6293] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6292] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6292] exit_group(0) = ? [pid 6292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6292, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./605", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./605", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./605/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./605/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./605/binderfs") = 0 umount2("./605/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./605/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./605/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./605/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./605/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./605/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./605") = 0 mkdir("./606", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6294 ./strace-static-x86_64: Process 6294 attached [pid 6294] chdir("./606") = 0 [pid 6294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6294] setpgid(0, 0) = 0 [pid 6294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6294] write(3, "1000", 4) = 4 [pid 6294] close(3) = 0 [pid 6294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6294] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6294] memfd_create("syzkaller", 0) = 3 [pid 6294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6294] 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"..., 2097152) = 2097152 [pid 6294] munmap(0x7f320ee61000, 2097152) = 0 [pid 6294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6294] close(3) = 0 [pid 6294] mkdir("./file1", 0777) = 0 [pid 6294] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6294] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6294] chdir("./file1") = 0 [pid 6294] ioctl(4, LOOP_CLR_FD) = 0 [pid 6294] close(4) = 0 [pid 6294] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6294] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6294] ftruncate(5, 33587199) = 0 [ 178.436601][ T6294] loop0: detected capacity change from 0 to 4096 [ 178.449313][ T6294] NILFS (loop0): invalid segment: Checksum error in segment payload [ 178.457432][ T6294] NILFS (loop0): trying rollback from an earlier position [ 178.469504][ T6294] NILFS (loop0): recovery complete [ 178.475372][ T6295] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6294] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6294] exit_group(0) = ? [pid 6294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6294, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./606", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./606", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./606/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./606/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./606/binderfs") = 0 umount2("./606/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./606/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./606/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./606/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./606/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./606/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./606") = 0 mkdir("./607", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6296 ./strace-static-x86_64: Process 6296 attached [pid 6296] chdir("./607") = 0 [pid 6296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6296] setpgid(0, 0) = 0 [pid 6296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6296] write(3, "1000", 4) = 4 [pid 6296] close(3) = 0 [pid 6296] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6296] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6296] memfd_create("syzkaller", 0) = 3 [pid 6296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6296] 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"..., 2097152) = 2097152 [pid 6296] munmap(0x7f320ee61000, 2097152) = 0 [pid 6296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6296] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6296] close(3) = 0 [pid 6296] mkdir("./file1", 0777) = 0 [pid 6296] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6296] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6296] chdir("./file1") = 0 [pid 6296] ioctl(4, LOOP_CLR_FD) = 0 [pid 6296] close(4) = 0 [pid 6296] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6296] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6296] ftruncate(5, 33587199) = 0 [ 178.664390][ T6296] loop0: detected capacity change from 0 to 4096 [ 178.676663][ T6296] NILFS (loop0): invalid segment: Checksum error in segment payload [ 178.684704][ T6296] NILFS (loop0): trying rollback from an earlier position [ 178.696040][ T6296] NILFS (loop0): recovery complete [ 178.701687][ T6297] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6296] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6296] exit_group(0) = ? [pid 6296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6296, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./607", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./607", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./607/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./607/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./607/binderfs") = 0 umount2("./607/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./607/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./607/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./607/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./607/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./607/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./607") = 0 mkdir("./608", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6298 attached , child_tidptr=0x555555c06690) = 6298 [pid 6298] chdir("./608") = 0 [pid 6298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6298] setpgid(0, 0) = 0 [pid 6298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6298] write(3, "1000", 4) = 4 [pid 6298] close(3) = 0 [pid 6298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6298] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6298] memfd_create("syzkaller", 0) = 3 [pid 6298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6298] 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"..., 2097152) = 2097152 [pid 6298] munmap(0x7f320ee61000, 2097152) = 0 [pid 6298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6298] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6298] close(3) = 0 [pid 6298] mkdir("./file1", 0777) = 0 [pid 6298] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6298] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6298] chdir("./file1") = 0 [pid 6298] ioctl(4, LOOP_CLR_FD) = 0 [pid 6298] close(4) = 0 [pid 6298] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6298] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6298] ftruncate(5, 33587199) = 0 [ 178.889504][ T6298] loop0: detected capacity change from 0 to 4096 [ 178.901421][ T6298] NILFS (loop0): invalid segment: Checksum error in segment payload [ 178.909420][ T6298] NILFS (loop0): trying rollback from an earlier position [ 178.920699][ T6298] NILFS (loop0): recovery complete [ 178.926451][ T6299] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6298] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6298] exit_group(0) = ? [pid 6298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6298, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./608", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./608", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./608/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./608/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./608/binderfs") = 0 umount2("./608/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./608/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./608/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./608/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./608/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./608/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./608") = 0 mkdir("./609", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6300 attached , child_tidptr=0x555555c06690) = 6300 [pid 6300] chdir("./609") = 0 [pid 6300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6300] setpgid(0, 0) = 0 [pid 6300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6300] write(3, "1000", 4) = 4 [pid 6300] close(3) = 0 [pid 6300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6300] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6300] memfd_create("syzkaller", 0) = 3 [pid 6300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6300] 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"..., 2097152) = 2097152 [pid 6300] munmap(0x7f320ee61000, 2097152) = 0 [pid 6300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6300] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6300] close(3) = 0 [pid 6300] mkdir("./file1", 0777) = 0 [pid 6300] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6300] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6300] chdir("./file1") = 0 [pid 6300] ioctl(4, LOOP_CLR_FD) = 0 [pid 6300] close(4) = 0 [pid 6300] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6300] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6300] ftruncate(5, 33587199) = 0 [ 179.107026][ T6300] loop0: detected capacity change from 0 to 4096 [ 179.119673][ T6300] NILFS (loop0): invalid segment: Checksum error in segment payload [ 179.127781][ T6300] NILFS (loop0): trying rollback from an earlier position [ 179.139246][ T6300] NILFS (loop0): recovery complete [ 179.145052][ T6301] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6300] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6300] exit_group(0) = ? [pid 6300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6300, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./609", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./609", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./609/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./609/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./609/binderfs") = 0 umount2("./609/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./609/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./609/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./609/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./609/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./609/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./609") = 0 mkdir("./610", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6302 ./strace-static-x86_64: Process 6302 attached [pid 6302] chdir("./610") = 0 [pid 6302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6302] setpgid(0, 0) = 0 [pid 6302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6302] write(3, "1000", 4) = 4 [pid 6302] close(3) = 0 [pid 6302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6302] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6302] memfd_create("syzkaller", 0) = 3 [pid 6302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6302] 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"..., 2097152) = 2097152 [pid 6302] munmap(0x7f320ee61000, 2097152) = 0 [pid 6302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6302] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6302] close(3) = 0 [pid 6302] mkdir("./file1", 0777) = 0 [pid 6302] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6302] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6302] chdir("./file1") = 0 [pid 6302] ioctl(4, LOOP_CLR_FD) = 0 [pid 6302] close(4) = 0 [pid 6302] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6302] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6302] ftruncate(5, 33587199) = 0 [ 179.335376][ T6302] loop0: detected capacity change from 0 to 4096 [ 179.348012][ T6302] NILFS (loop0): invalid segment: Checksum error in segment payload [ 179.356274][ T6302] NILFS (loop0): trying rollback from an earlier position [ 179.367730][ T6302] NILFS (loop0): recovery complete [ 179.373514][ T6303] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6302] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6302] exit_group(0) = ? [pid 6302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6302, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./610", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./610", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./610/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./610/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./610/binderfs") = 0 umount2("./610/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./610/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./610/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./610/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./610/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./610/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./610") = 0 mkdir("./611", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6304 ./strace-static-x86_64: Process 6304 attached [pid 6304] chdir("./611") = 0 [pid 6304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6304] setpgid(0, 0) = 0 [pid 6304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6304] write(3, "1000", 4) = 4 [pid 6304] close(3) = 0 [pid 6304] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6304] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6304] memfd_create("syzkaller", 0) = 3 [pid 6304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6304] 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"..., 2097152) = 2097152 [pid 6304] munmap(0x7f320ee61000, 2097152) = 0 [pid 6304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6304] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6304] close(3) = 0 [pid 6304] mkdir("./file1", 0777) = 0 [pid 6304] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6304] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6304] chdir("./file1") = 0 [pid 6304] ioctl(4, LOOP_CLR_FD) = 0 [pid 6304] close(4) = 0 [pid 6304] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6304] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6304] ftruncate(5, 33587199) = 0 [ 179.564813][ T6304] loop0: detected capacity change from 0 to 4096 [ 179.577327][ T6304] NILFS (loop0): invalid segment: Checksum error in segment payload [ 179.585449][ T6304] NILFS (loop0): trying rollback from an earlier position [ 179.597285][ T6304] NILFS (loop0): recovery complete [ 179.602879][ T6305] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6304] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6304] exit_group(0) = ? [pid 6304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6304, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./611", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./611", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./611/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./611/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./611/binderfs") = 0 umount2("./611/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./611/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./611/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./611/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./611/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./611/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./611") = 0 mkdir("./612", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6306 ./strace-static-x86_64: Process 6306 attached [pid 6306] chdir("./612") = 0 [pid 6306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6306] setpgid(0, 0) = 0 [pid 6306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6306] write(3, "1000", 4) = 4 [pid 6306] close(3) = 0 [pid 6306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6306] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6306] memfd_create("syzkaller", 0) = 3 [pid 6306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6306] 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"..., 2097152) = 2097152 [pid 6306] munmap(0x7f320ee61000, 2097152) = 0 [pid 6306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6306] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6306] close(3) = 0 [pid 6306] mkdir("./file1", 0777) = 0 [pid 6306] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6306] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6306] chdir("./file1") = 0 [pid 6306] ioctl(4, LOOP_CLR_FD) = 0 [pid 6306] close(4) = 0 [pid 6306] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6306] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6306] ftruncate(5, 33587199) = 0 [ 179.799998][ T6306] loop0: detected capacity change from 0 to 4096 [ 179.811878][ T6306] NILFS (loop0): invalid segment: Checksum error in segment payload [ 179.819847][ T6306] NILFS (loop0): trying rollback from an earlier position [ 179.831356][ T6306] NILFS (loop0): recovery complete [ 179.837057][ T6307] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6306] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6306] exit_group(0) = ? [pid 6306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6306, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./612", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./612", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./612/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./612/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./612/binderfs") = 0 umount2("./612/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./612/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./612/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./612/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./612/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./612/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./612") = 0 mkdir("./613", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6308 ./strace-static-x86_64: Process 6308 attached [pid 6308] chdir("./613") = 0 [pid 6308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6308] setpgid(0, 0) = 0 [pid 6308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6308] write(3, "1000", 4) = 4 [pid 6308] close(3) = 0 [pid 6308] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6308] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6308] memfd_create("syzkaller", 0) = 3 [pid 6308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6308] 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"..., 2097152) = 2097152 [pid 6308] munmap(0x7f320ee61000, 2097152) = 0 [pid 6308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6308] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6308] close(3) = 0 [pid 6308] mkdir("./file1", 0777) = 0 [pid 6308] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6308] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6308] chdir("./file1") = 0 [pid 6308] ioctl(4, LOOP_CLR_FD) = 0 [pid 6308] close(4) = 0 [pid 6308] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6308] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6308] ftruncate(5, 33587199) = 0 [ 180.029350][ T6308] loop0: detected capacity change from 0 to 4096 [ 180.043168][ T6308] NILFS (loop0): invalid segment: Checksum error in segment payload [ 180.051266][ T6308] NILFS (loop0): trying rollback from an earlier position [ 180.062384][ T6308] NILFS (loop0): recovery complete [ 180.068238][ T6309] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6308] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6308] exit_group(0) = ? [pid 6308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6308, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./613", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./613", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./613/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./613/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./613/binderfs") = 0 umount2("./613/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./613/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./613/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./613/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./613/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./613/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./613") = 0 mkdir("./614", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6310 attached , child_tidptr=0x555555c06690) = 6310 [pid 6310] chdir("./614") = 0 [pid 6310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6310] setpgid(0, 0) = 0 [pid 6310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6310] write(3, "1000", 4) = 4 [pid 6310] close(3) = 0 [pid 6310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6310] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6310] memfd_create("syzkaller", 0) = 3 [pid 6310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6310] 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"..., 2097152) = 2097152 [pid 6310] munmap(0x7f320ee61000, 2097152) = 0 [pid 6310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6310] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6310] close(3) = 0 [pid 6310] mkdir("./file1", 0777) = 0 [pid 6310] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6310] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6310] chdir("./file1") = 0 [pid 6310] ioctl(4, LOOP_CLR_FD) = 0 [pid 6310] close(4) = 0 [pid 6310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6310] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6310] ftruncate(5, 33587199) = 0 [ 180.251495][ T6310] loop0: detected capacity change from 0 to 4096 [ 180.263450][ T6310] NILFS (loop0): invalid segment: Checksum error in segment payload [ 180.271556][ T6310] NILFS (loop0): trying rollback from an earlier position [ 180.282601][ T6310] NILFS (loop0): recovery complete [ 180.288283][ T6311] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6310] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6310] exit_group(0) = ? [pid 6310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6310, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./614", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./614", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./614/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./614/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./614/binderfs") = 0 umount2("./614/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./614/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./614/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./614/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./614/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./614/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./614") = 0 mkdir("./615", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6312 ./strace-static-x86_64: Process 6312 attached [pid 6312] chdir("./615") = 0 [pid 6312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6312] setpgid(0, 0) = 0 [pid 6312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6312] write(3, "1000", 4) = 4 [pid 6312] close(3) = 0 [pid 6312] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6312] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6312] memfd_create("syzkaller", 0) = 3 [pid 6312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6312] 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"..., 2097152) = 2097152 [pid 6312] munmap(0x7f320ee61000, 2097152) = 0 [pid 6312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6312] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6312] close(3) = 0 [pid 6312] mkdir("./file1", 0777) = 0 [pid 6312] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6312] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6312] chdir("./file1") = 0 [pid 6312] ioctl(4, LOOP_CLR_FD) = 0 [pid 6312] close(4) = 0 [pid 6312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6312] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6312] ftruncate(5, 33587199) = 0 [ 180.474072][ T6312] loop0: detected capacity change from 0 to 4096 [ 180.485845][ T6312] NILFS (loop0): invalid segment: Checksum error in segment payload [ 180.493883][ T6312] NILFS (loop0): trying rollback from an earlier position [ 180.505368][ T6312] NILFS (loop0): recovery complete [ 180.511043][ T6313] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6312] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6312] exit_group(0) = ? [pid 6312] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6312, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./615", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./615", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./615/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./615/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./615/binderfs") = 0 umount2("./615/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./615/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./615/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./615/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./615/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./615/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./615") = 0 mkdir("./616", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6314 ./strace-static-x86_64: Process 6314 attached [pid 6314] chdir("./616") = 0 [pid 6314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6314] setpgid(0, 0) = 0 [pid 6314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6314] write(3, "1000", 4) = 4 [pid 6314] close(3) = 0 [pid 6314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6314] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6314] memfd_create("syzkaller", 0) = 3 [pid 6314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6314] 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"..., 2097152) = 2097152 [pid 6314] munmap(0x7f320ee61000, 2097152) = 0 [pid 6314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6314] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6314] close(3) = 0 [pid 6314] mkdir("./file1", 0777) = 0 [pid 6314] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6314] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6314] chdir("./file1") = 0 [pid 6314] ioctl(4, LOOP_CLR_FD) = 0 [pid 6314] close(4) = 0 [pid 6314] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6314] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6314] ftruncate(5, 33587199) = 0 [ 180.695920][ T6314] loop0: detected capacity change from 0 to 4096 [ 180.707598][ T6314] NILFS (loop0): invalid segment: Checksum error in segment payload [ 180.715799][ T6314] NILFS (loop0): trying rollback from an earlier position [ 180.726874][ T6314] NILFS (loop0): recovery complete [ 180.732489][ T6315] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6314] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6314] exit_group(0) = ? [pid 6314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6314, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./616", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./616", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./616/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./616/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./616/binderfs") = 0 umount2("./616/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./616/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./616/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./616/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./616/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./616/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./616") = 0 mkdir("./617", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6316 attached [pid 6316] chdir("./617") = 0 [pid 6316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6316] setpgid(0, 0) = 0 [pid 6316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6316] write(3, "1000", 4) = 4 [pid 6316] close(3) = 0 [pid 6316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6316] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6316] memfd_create("syzkaller", 0) = 3 [pid 6316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6316 [pid 6316] 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"..., 2097152) = 2097152 [pid 6316] munmap(0x7f320ee61000, 2097152) = 0 [pid 6316] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6316] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6316] close(3) = 0 [pid 6316] mkdir("./file1", 0777) = 0 [pid 6316] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6316] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6316] chdir("./file1") = 0 [pid 6316] ioctl(4, LOOP_CLR_FD) = 0 [pid 6316] close(4) = 0 [pid 6316] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6316] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6316] ftruncate(5, 33587199) = 0 [ 180.918558][ T6316] loop0: detected capacity change from 0 to 4096 [ 180.930842][ T6316] NILFS (loop0): invalid segment: Checksum error in segment payload [ 180.938859][ T6316] NILFS (loop0): trying rollback from an earlier position [ 180.950187][ T6316] NILFS (loop0): recovery complete [ 180.955902][ T6317] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6316] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6316] exit_group(0) = ? [pid 6316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6316, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./617", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./617", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./617/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./617/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./617/binderfs") = 0 umount2("./617/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./617/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./617/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./617/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./617/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./617/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./617") = 0 mkdir("./618", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6318 attached [pid 6318] chdir("./618") = 0 [pid 6318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6318] setpgid(0, 0) = 0 [pid 6318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6318 [pid 6318] <... openat resumed>) = 3 [pid 6318] write(3, "1000", 4) = 4 [pid 6318] close(3) = 0 [pid 6318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6318] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6318] memfd_create("syzkaller", 0) = 3 [pid 6318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6318] 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"..., 2097152) = 2097152 [pid 6318] munmap(0x7f320ee61000, 2097152) = 0 [pid 6318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6318] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6318] close(3) = 0 [pid 6318] mkdir("./file1", 0777) = 0 [pid 6318] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6318] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6318] chdir("./file1") = 0 [pid 6318] ioctl(4, LOOP_CLR_FD) = 0 [pid 6318] close(4) = 0 [pid 6318] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6318] ftruncate(5, 33587199) = 0 [ 181.152793][ T6318] loop0: detected capacity change from 0 to 4096 [ 181.164988][ T6318] NILFS (loop0): invalid segment: Checksum error in segment payload [ 181.173050][ T6318] NILFS (loop0): trying rollback from an earlier position [ 181.184790][ T6318] NILFS (loop0): recovery complete [ 181.190811][ T6319] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6318] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6318] exit_group(0) = ? [pid 6318] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6318, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./618", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./618", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./618/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./618/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./618/binderfs") = 0 umount2("./618/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./618/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./618/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./618/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./618/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./618/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./618") = 0 mkdir("./619", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6320 ./strace-static-x86_64: Process 6320 attached [pid 6320] chdir("./619") = 0 [pid 6320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6320] setpgid(0, 0) = 0 [pid 6320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6320] write(3, "1000", 4) = 4 [pid 6320] close(3) = 0 [pid 6320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6320] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6320] memfd_create("syzkaller", 0) = 3 [pid 6320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6320] 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"..., 2097152) = 2097152 [pid 6320] munmap(0x7f320ee61000, 2097152) = 0 [pid 6320] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6320] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6320] close(3) = 0 [pid 6320] mkdir("./file1", 0777) = 0 [pid 6320] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6320] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6320] chdir("./file1") = 0 [pid 6320] ioctl(4, LOOP_CLR_FD) = 0 [pid 6320] close(4) = 0 [pid 6320] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6320] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6320] ftruncate(5, 33587199) = 0 [ 181.378626][ T6320] loop0: detected capacity change from 0 to 4096 [ 181.390770][ T6320] NILFS (loop0): invalid segment: Checksum error in segment payload [ 181.398784][ T6320] NILFS (loop0): trying rollback from an earlier position [ 181.409951][ T6320] NILFS (loop0): recovery complete [ 181.415806][ T6321] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6320] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6320] exit_group(0) = ? [pid 6320] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6320, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./619", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./619", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./619/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./619/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./619/binderfs") = 0 umount2("./619/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./619/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./619/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./619/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./619/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./619/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./619") = 0 mkdir("./620", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6322 ./strace-static-x86_64: Process 6322 attached [pid 6322] chdir("./620") = 0 [pid 6322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6322] setpgid(0, 0) = 0 [pid 6322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6322] write(3, "1000", 4) = 4 [pid 6322] close(3) = 0 [pid 6322] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6322] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6322] memfd_create("syzkaller", 0) = 3 [pid 6322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6322] 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"..., 2097152) = 2097152 [pid 6322] munmap(0x7f320ee61000, 2097152) = 0 [pid 6322] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6322] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6322] close(3) = 0 [pid 6322] mkdir("./file1", 0777) = 0 [pid 6322] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6322] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6322] chdir("./file1") = 0 [pid 6322] ioctl(4, LOOP_CLR_FD) = 0 [pid 6322] close(4) = 0 [pid 6322] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6322] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6322] ftruncate(5, 33587199) = 0 [ 181.609326][ T6322] loop0: detected capacity change from 0 to 4096 [ 181.621593][ T6322] NILFS (loop0): invalid segment: Checksum error in segment payload [ 181.629593][ T6322] NILFS (loop0): trying rollback from an earlier position [ 181.641042][ T6322] NILFS (loop0): recovery complete [ 181.646859][ T6323] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6322] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6322] exit_group(0) = ? [pid 6322] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6322, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./620", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./620", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./620/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./620/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./620/binderfs") = 0 umount2("./620/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./620/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./620/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./620/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./620/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./620/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./620") = 0 mkdir("./621", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6324 ./strace-static-x86_64: Process 6324 attached [pid 6324] chdir("./621") = 0 [pid 6324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6324] setpgid(0, 0) = 0 [pid 6324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6324] write(3, "1000", 4) = 4 [pid 6324] close(3) = 0 [pid 6324] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6324] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6324] memfd_create("syzkaller", 0) = 3 [pid 6324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6324] 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"..., 2097152) = 2097152 [pid 6324] munmap(0x7f320ee61000, 2097152) = 0 [pid 6324] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6324] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6324] close(3) = 0 [pid 6324] mkdir("./file1", 0777) = 0 [pid 6324] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6324] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6324] chdir("./file1") = 0 [pid 6324] ioctl(4, LOOP_CLR_FD) = 0 [pid 6324] close(4) = 0 [pid 6324] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6324] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6324] ftruncate(5, 33587199) = 0 [ 181.837553][ T6324] loop0: detected capacity change from 0 to 4096 [ 181.850680][ T6324] NILFS (loop0): invalid segment: Checksum error in segment payload [ 181.858670][ T6324] NILFS (loop0): trying rollback from an earlier position [ 181.870953][ T6324] NILFS (loop0): recovery complete [ 181.876968][ T6325] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6324] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6324] exit_group(0) = ? [pid 6324] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6324, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./621", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./621", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./621/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./621/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./621/binderfs") = 0 umount2("./621/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./621/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./621/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./621/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./621/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./621/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./621") = 0 mkdir("./622", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6326 ./strace-static-x86_64: Process 6326 attached [pid 6326] chdir("./622") = 0 [pid 6326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6326] setpgid(0, 0) = 0 [pid 6326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6326] write(3, "1000", 4) = 4 [pid 6326] close(3) = 0 [pid 6326] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6326] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6326] memfd_create("syzkaller", 0) = 3 [pid 6326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6326] 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"..., 2097152) = 2097152 [pid 6326] munmap(0x7f320ee61000, 2097152) = 0 [pid 6326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6326] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6326] close(3) = 0 [pid 6326] mkdir("./file1", 0777) = 0 [pid 6326] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6326] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6326] chdir("./file1") = 0 [pid 6326] ioctl(4, LOOP_CLR_FD) = 0 [pid 6326] close(4) = 0 [pid 6326] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6326] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6326] ftruncate(5, 33587199) = 0 [ 182.065684][ T6326] loop0: detected capacity change from 0 to 4096 [ 182.077833][ T6326] NILFS (loop0): invalid segment: Checksum error in segment payload [ 182.086053][ T6326] NILFS (loop0): trying rollback from an earlier position [ 182.097086][ T6326] NILFS (loop0): recovery complete [ 182.103035][ T6327] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6326] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6326] exit_group(0) = ? [pid 6326] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6326, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./622", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./622", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./622/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./622/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./622/binderfs") = 0 umount2("./622/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./622/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./622/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./622/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./622/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./622/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./622") = 0 mkdir("./623", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6328 attached [pid 6328] chdir("./623") = 0 [pid 6328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6328 [pid 6328] <... prctl resumed>) = 0 [pid 6328] setpgid(0, 0) = 0 [pid 6328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6328] write(3, "1000", 4) = 4 [pid 6328] close(3) = 0 [pid 6328] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6328] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6328] memfd_create("syzkaller", 0) = 3 [pid 6328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6328] 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"..., 2097152) = 2097152 [pid 6328] munmap(0x7f320ee61000, 2097152) = 0 [pid 6328] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6328] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6328] close(3) = 0 [pid 6328] mkdir("./file1", 0777) = 0 [pid 6328] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6328] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6328] chdir("./file1") = 0 [pid 6328] ioctl(4, LOOP_CLR_FD) = 0 [pid 6328] close(4) = 0 [pid 6328] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6328] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6328] ftruncate(5, 33587199) = 0 [ 182.294929][ T6328] loop0: detected capacity change from 0 to 4096 [ 182.307554][ T6328] NILFS (loop0): invalid segment: Checksum error in segment payload [ 182.315968][ T6328] NILFS (loop0): trying rollback from an earlier position [ 182.326700][ T6328] NILFS (loop0): recovery complete [ 182.332367][ T6329] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6328] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6328] exit_group(0) = ? [pid 6328] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6328, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./623", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./623", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./623/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./623/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./623/binderfs") = 0 umount2("./623/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./623/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./623/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./623/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./623/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./623/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./623") = 0 mkdir("./624", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6330 ./strace-static-x86_64: Process 6330 attached [pid 6330] chdir("./624") = 0 [pid 6330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6330] setpgid(0, 0) = 0 [pid 6330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6330] write(3, "1000", 4) = 4 [pid 6330] close(3) = 0 [pid 6330] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6330] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6330] memfd_create("syzkaller", 0) = 3 [pid 6330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6330] 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"..., 2097152) = 2097152 [pid 6330] munmap(0x7f320ee61000, 2097152) = 0 [pid 6330] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6330] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6330] close(3) = 0 [pid 6330] mkdir("./file1", 0777) = 0 [pid 6330] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6330] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6330] chdir("./file1") = 0 [pid 6330] ioctl(4, LOOP_CLR_FD) = 0 [pid 6330] close(4) = 0 [pid 6330] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6330] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6330] ftruncate(5, 33587199) = 0 [ 182.513604][ T6330] loop0: detected capacity change from 0 to 4096 [ 182.524998][ T6330] NILFS (loop0): invalid segment: Checksum error in segment payload [ 182.533007][ T6330] NILFS (loop0): trying rollback from an earlier position [ 182.544502][ T6330] NILFS (loop0): recovery complete [ 182.550072][ T6331] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6330] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6330] exit_group(0) = ? [pid 6330] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6330, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./624", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./624", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./624/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./624/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./624/binderfs") = 0 umount2("./624/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./624/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./624/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./624/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./624/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./624/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./624") = 0 mkdir("./625", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6332 attached , child_tidptr=0x555555c06690) = 6332 [pid 6332] chdir("./625") = 0 [pid 6332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6332] setpgid(0, 0) = 0 [pid 6332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6332] write(3, "1000", 4) = 4 [pid 6332] close(3) = 0 [pid 6332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6332] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6332] memfd_create("syzkaller", 0) = 3 [pid 6332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6332] 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"..., 2097152) = 2097152 [pid 6332] munmap(0x7f320ee61000, 2097152) = 0 [pid 6332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6332] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6332] close(3) = 0 [pid 6332] mkdir("./file1", 0777) = 0 [pid 6332] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6332] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6332] chdir("./file1") = 0 [pid 6332] ioctl(4, LOOP_CLR_FD) = 0 [pid 6332] close(4) = 0 [pid 6332] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6332] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6332] ftruncate(5, 33587199) = 0 [ 182.734638][ T6332] loop0: detected capacity change from 0 to 4096 [ 182.747067][ T6332] NILFS (loop0): invalid segment: Checksum error in segment payload [ 182.755227][ T6332] NILFS (loop0): trying rollback from an earlier position [ 182.767360][ T6332] NILFS (loop0): recovery complete [ 182.773275][ T6333] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6332] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6332] exit_group(0) = ? [pid 6332] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6332, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./625", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./625", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./625/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./625/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./625/binderfs") = 0 umount2("./625/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./625/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./625/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./625/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./625/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./625/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./625") = 0 mkdir("./626", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6334 ./strace-static-x86_64: Process 6334 attached [pid 6334] chdir("./626") = 0 [pid 6334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6334] setpgid(0, 0) = 0 [pid 6334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6334] write(3, "1000", 4) = 4 [pid 6334] close(3) = 0 [pid 6334] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6334] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6334] memfd_create("syzkaller", 0) = 3 [pid 6334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6334] 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"..., 2097152) = 2097152 [pid 6334] munmap(0x7f320ee61000, 2097152) = 0 [pid 6334] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6334] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6334] close(3) = 0 [pid 6334] mkdir("./file1", 0777) = 0 [pid 6334] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6334] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6334] chdir("./file1") = 0 [pid 6334] ioctl(4, LOOP_CLR_FD) = 0 [pid 6334] close(4) = 0 [pid 6334] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6334] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6334] ftruncate(5, 33587199) = 0 [ 182.943772][ T6334] loop0: detected capacity change from 0 to 4096 [ 182.956973][ T6334] NILFS (loop0): invalid segment: Checksum error in segment payload [ 182.965072][ T6334] NILFS (loop0): trying rollback from an earlier position [ 182.976195][ T6334] NILFS (loop0): recovery complete [ 182.981933][ T6335] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6334] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6334] exit_group(0) = ? [pid 6334] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6334, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./626", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./626", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./626/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./626/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./626/binderfs") = 0 umount2("./626/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./626/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./626/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./626/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./626/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./626/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./626") = 0 mkdir("./627", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6336 ./strace-static-x86_64: Process 6336 attached [pid 6336] chdir("./627") = 0 [pid 6336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6336] setpgid(0, 0) = 0 [pid 6336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6336] write(3, "1000", 4) = 4 [pid 6336] close(3) = 0 [pid 6336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6336] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6336] memfd_create("syzkaller", 0) = 3 [pid 6336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6336] 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"..., 2097152) = 2097152 [pid 6336] munmap(0x7f320ee61000, 2097152) = 0 [pid 6336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6336] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6336] close(3) = 0 [pid 6336] mkdir("./file1", 0777) = 0 [pid 6336] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6336] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6336] chdir("./file1") = 0 [pid 6336] ioctl(4, LOOP_CLR_FD) = 0 [pid 6336] close(4) = 0 [pid 6336] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6336] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6336] ftruncate(5, 33587199) = 0 [ 183.167021][ T6336] loop0: detected capacity change from 0 to 4096 [ 183.179344][ T6336] NILFS (loop0): invalid segment: Checksum error in segment payload [ 183.188046][ T6336] NILFS (loop0): trying rollback from an earlier position [ 183.199623][ T6336] NILFS (loop0): recovery complete [ 183.205402][ T6337] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6336] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6336] exit_group(0) = ? [pid 6336] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6336, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./627", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./627", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./627/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./627/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./627/binderfs") = 0 umount2("./627/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./627/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./627/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./627/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./627/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./627/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./627") = 0 mkdir("./628", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6338 ./strace-static-x86_64: Process 6338 attached [pid 6338] chdir("./628") = 0 [pid 6338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6338] setpgid(0, 0) = 0 [pid 6338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6338] write(3, "1000", 4) = 4 [pid 6338] close(3) = 0 [pid 6338] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6338] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6338] memfd_create("syzkaller", 0) = 3 [pid 6338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6338] 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"..., 2097152) = 2097152 [pid 6338] munmap(0x7f320ee61000, 2097152) = 0 [pid 6338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6338] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6338] close(3) = 0 [pid 6338] mkdir("./file1", 0777) = 0 [pid 6338] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6338] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6338] chdir("./file1") = 0 [pid 6338] ioctl(4, LOOP_CLR_FD) = 0 [pid 6338] close(4) = 0 [pid 6338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6338] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6338] ftruncate(5, 33587199) = 0 [ 183.395468][ T6338] loop0: detected capacity change from 0 to 4096 [ 183.407281][ T6338] NILFS (loop0): invalid segment: Checksum error in segment payload [ 183.415318][ T6338] NILFS (loop0): trying rollback from an earlier position [ 183.426715][ T6338] NILFS (loop0): recovery complete [ 183.432753][ T6339] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6338] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6338] exit_group(0) = ? [pid 6338] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6338, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./628", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./628", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./628/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./628/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./628/binderfs") = 0 umount2("./628/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./628/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./628/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./628/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./628/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./628/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./628") = 0 mkdir("./629", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6340 ./strace-static-x86_64: Process 6340 attached [pid 6340] chdir("./629") = 0 [pid 6340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6340] setpgid(0, 0) = 0 [pid 6340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6340] write(3, "1000", 4) = 4 [pid 6340] close(3) = 0 [pid 6340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6340] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6340] memfd_create("syzkaller", 0) = 3 [pid 6340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6340] 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"..., 2097152) = 2097152 [pid 6340] munmap(0x7f320ee61000, 2097152) = 0 [pid 6340] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6340] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6340] close(3) = 0 [pid 6340] mkdir("./file1", 0777) = 0 [pid 6340] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6340] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6340] chdir("./file1") = 0 [pid 6340] ioctl(4, LOOP_CLR_FD) = 0 [pid 6340] close(4) = 0 [pid 6340] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6340] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6340] ftruncate(5, 33587199) = 0 [ 183.626792][ T6340] loop0: detected capacity change from 0 to 4096 [ 183.638508][ T6340] NILFS (loop0): invalid segment: Checksum error in segment payload [ 183.646582][ T6340] NILFS (loop0): trying rollback from an earlier position [ 183.657439][ T6340] NILFS (loop0): recovery complete [ 183.663391][ T6341] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6340] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6340] exit_group(0) = ? [pid 6340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6340, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./629", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./629", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./629/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./629/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./629/binderfs") = 0 umount2("./629/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./629/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./629/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./629/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./629/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./629/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./629") = 0 mkdir("./630", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6342 ./strace-static-x86_64: Process 6342 attached [pid 6342] chdir("./630") = 0 [pid 6342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6342] setpgid(0, 0) = 0 [pid 6342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6342] write(3, "1000", 4) = 4 [pid 6342] close(3) = 0 [pid 6342] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6342] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6342] memfd_create("syzkaller", 0) = 3 [pid 6342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6342] 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"..., 2097152) = 2097152 [pid 6342] munmap(0x7f320ee61000, 2097152) = 0 [pid 6342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6342] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6342] close(3) = 0 [pid 6342] mkdir("./file1", 0777) = 0 [pid 6342] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6342] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6342] chdir("./file1") = 0 [pid 6342] ioctl(4, LOOP_CLR_FD) = 0 [pid 6342] close(4) = 0 [pid 6342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6342] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6342] ftruncate(5, 33587199) = 0 [ 183.838984][ T6342] loop0: detected capacity change from 0 to 4096 [ 183.851517][ T6342] NILFS (loop0): invalid segment: Checksum error in segment payload [ 183.859573][ T6342] NILFS (loop0): trying rollback from an earlier position [ 183.871518][ T6342] NILFS (loop0): recovery complete [ 183.877187][ T6343] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6342] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6342] exit_group(0) = ? [pid 6342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6342, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./630", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./630", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./630/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./630/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./630/binderfs") = 0 umount2("./630/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./630/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./630/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./630/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./630/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./630/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./630") = 0 mkdir("./631", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6344 ./strace-static-x86_64: Process 6344 attached [pid 6344] chdir("./631") = 0 [pid 6344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6344] setpgid(0, 0) = 0 [pid 6344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6344] write(3, "1000", 4) = 4 [pid 6344] close(3) = 0 [pid 6344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6344] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6344] memfd_create("syzkaller", 0) = 3 [pid 6344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6344] 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"..., 2097152) = 2097152 [pid 6344] munmap(0x7f320ee61000, 2097152) = 0 [pid 6344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6344] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6344] close(3) = 0 [pid 6344] mkdir("./file1", 0777) = 0 [pid 6344] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6344] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6344] chdir("./file1") = 0 [pid 6344] ioctl(4, LOOP_CLR_FD) = 0 [pid 6344] close(4) = 0 [pid 6344] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6344] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6344] ftruncate(5, 33587199) = 0 [ 184.064732][ T6344] loop0: detected capacity change from 0 to 4096 [ 184.077347][ T6344] NILFS (loop0): invalid segment: Checksum error in segment payload [ 184.085446][ T6344] NILFS (loop0): trying rollback from an earlier position [ 184.096585][ T6344] NILFS (loop0): recovery complete [ 184.102411][ T6345] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6344] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6344] exit_group(0) = ? [pid 6344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6344, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./631", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./631", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./631/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./631/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./631/binderfs") = 0 umount2("./631/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./631/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./631/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./631/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./631/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./631/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./631") = 0 mkdir("./632", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6346 ./strace-static-x86_64: Process 6346 attached [pid 6346] chdir("./632") = 0 [pid 6346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6346] setpgid(0, 0) = 0 [pid 6346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6346] write(3, "1000", 4) = 4 [pid 6346] close(3) = 0 [pid 6346] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6346] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6346] memfd_create("syzkaller", 0) = 3 [pid 6346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6346] 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"..., 2097152) = 2097152 [pid 6346] munmap(0x7f320ee61000, 2097152) = 0 [pid 6346] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6346] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6346] close(3) = 0 [pid 6346] mkdir("./file1", 0777) = 0 [pid 6346] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6346] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6346] chdir("./file1") = 0 [pid 6346] ioctl(4, LOOP_CLR_FD) = 0 [pid 6346] close(4) = 0 [pid 6346] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6346] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6346] ftruncate(5, 33587199) = 0 [ 184.280469][ T6346] loop0: detected capacity change from 0 to 4096 [ 184.292166][ T6346] NILFS (loop0): invalid segment: Checksum error in segment payload [ 184.300152][ T6346] NILFS (loop0): trying rollback from an earlier position [ 184.311466][ T6346] NILFS (loop0): recovery complete [ 184.317249][ T6347] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6346] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6346] exit_group(0) = ? [pid 6346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6346, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./632", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./632", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./632/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./632/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./632/binderfs") = 0 umount2("./632/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./632/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./632/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./632/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./632/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./632/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./632") = 0 mkdir("./633", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6348 ./strace-static-x86_64: Process 6348 attached [pid 6348] chdir("./633") = 0 [pid 6348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6348] setpgid(0, 0) = 0 [pid 6348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6348] write(3, "1000", 4) = 4 [pid 6348] close(3) = 0 [pid 6348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6348] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6348] memfd_create("syzkaller", 0) = 3 [pid 6348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6348] 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"..., 2097152) = 2097152 [pid 6348] munmap(0x7f320ee61000, 2097152) = 0 [pid 6348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6348] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6348] close(3) = 0 [pid 6348] mkdir("./file1", 0777) = 0 [pid 6348] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6348] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6348] chdir("./file1") = 0 [pid 6348] ioctl(4, LOOP_CLR_FD) = 0 [pid 6348] close(4) = 0 [pid 6348] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6348] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6348] ftruncate(5, 33587199) = 0 [ 184.524301][ T6348] loop0: detected capacity change from 0 to 4096 [ 184.537541][ T6348] NILFS (loop0): invalid segment: Checksum error in segment payload [ 184.545642][ T6348] NILFS (loop0): trying rollback from an earlier position [ 184.557260][ T6348] NILFS (loop0): recovery complete [ 184.562935][ T6349] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6348] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6348] exit_group(0) = ? [pid 6348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6348, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./633", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./633", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./633/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./633/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./633/binderfs") = 0 umount2("./633/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./633/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./633/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./633/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./633/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./633/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./633") = 0 mkdir("./634", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6350 ./strace-static-x86_64: Process 6350 attached [pid 6350] chdir("./634") = 0 [pid 6350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6350] setpgid(0, 0) = 0 [pid 6350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6350] write(3, "1000", 4) = 4 [pid 6350] close(3) = 0 [pid 6350] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6350] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6350] memfd_create("syzkaller", 0) = 3 [pid 6350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6350] 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"..., 2097152) = 2097152 [pid 6350] munmap(0x7f320ee61000, 2097152) = 0 [pid 6350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6350] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6350] close(3) = 0 [pid 6350] mkdir("./file1", 0777) = 0 [pid 6350] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6350] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6350] chdir("./file1") = 0 [pid 6350] ioctl(4, LOOP_CLR_FD) = 0 [pid 6350] close(4) = 0 [pid 6350] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6350] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6350] ftruncate(5, 33587199) = 0 [ 184.754255][ T6350] loop0: detected capacity change from 0 to 4096 [ 184.766298][ T6350] NILFS (loop0): invalid segment: Checksum error in segment payload [ 184.774365][ T6350] NILFS (loop0): trying rollback from an earlier position [ 184.785029][ T6350] NILFS (loop0): recovery complete [ 184.790875][ T6351] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6350] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6350] exit_group(0) = ? [pid 6350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6350, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./634", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./634", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./634/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./634/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./634/binderfs") = 0 umount2("./634/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./634/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./634/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./634/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./634/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./634/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./634") = 0 mkdir("./635", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6352 ./strace-static-x86_64: Process 6352 attached [pid 6352] chdir("./635") = 0 [pid 6352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6352] setpgid(0, 0) = 0 [pid 6352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6352] write(3, "1000", 4) = 4 [pid 6352] close(3) = 0 [pid 6352] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6352] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6352] memfd_create("syzkaller", 0) = 3 [pid 6352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6352] 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"..., 2097152) = 2097152 [pid 6352] munmap(0x7f320ee61000, 2097152) = 0 [pid 6352] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6352] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6352] close(3) = 0 [pid 6352] mkdir("./file1", 0777) = 0 [pid 6352] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6352] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6352] chdir("./file1") = 0 [pid 6352] ioctl(4, LOOP_CLR_FD) = 0 [pid 6352] close(4) = 0 [pid 6352] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6352] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6352] ftruncate(5, 33587199) = 0 [ 184.979666][ T6352] loop0: detected capacity change from 0 to 4096 [ 184.991589][ T6352] NILFS (loop0): invalid segment: Checksum error in segment payload [ 184.999558][ T6352] NILFS (loop0): trying rollback from an earlier position [ 185.010981][ T6352] NILFS (loop0): recovery complete [ 185.016734][ T6353] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6352] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6352] exit_group(0) = ? [pid 6352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6352, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./635", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./635", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./635/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./635/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./635/binderfs") = 0 umount2("./635/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./635/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./635/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./635/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./635/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./635/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./635") = 0 mkdir("./636", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6354 attached , child_tidptr=0x555555c06690) = 6354 [pid 6354] chdir("./636") = 0 [pid 6354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6354] setpgid(0, 0) = 0 [pid 6354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6354] write(3, "1000", 4) = 4 [pid 6354] close(3) = 0 [pid 6354] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6354] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6354] memfd_create("syzkaller", 0) = 3 [pid 6354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6354] 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"..., 2097152) = 2097152 [pid 6354] munmap(0x7f320ee61000, 2097152) = 0 [pid 6354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6354] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6354] close(3) = 0 [pid 6354] mkdir("./file1", 0777) = 0 [pid 6354] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6354] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6354] chdir("./file1") = 0 [pid 6354] ioctl(4, LOOP_CLR_FD) = 0 [pid 6354] close(4) = 0 [pid 6354] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6354] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6354] ftruncate(5, 33587199) = 0 [ 185.202724][ T6354] loop0: detected capacity change from 0 to 4096 [ 185.214089][ T6354] NILFS (loop0): invalid segment: Checksum error in segment payload [ 185.222129][ T6354] NILFS (loop0): trying rollback from an earlier position [ 185.233012][ T6354] NILFS (loop0): recovery complete [ 185.238780][ T6355] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6354] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6354] exit_group(0) = ? [pid 6354] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6354, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./636", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./636", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./636/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./636/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./636/binderfs") = 0 umount2("./636/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./636/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./636/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./636/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./636/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./636/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./636") = 0 mkdir("./637", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6356 ./strace-static-x86_64: Process 6356 attached [pid 6356] chdir("./637") = 0 [pid 6356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6356] setpgid(0, 0) = 0 [pid 6356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6356] write(3, "1000", 4) = 4 [pid 6356] close(3) = 0 [pid 6356] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6356] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6356] memfd_create("syzkaller", 0) = 3 [pid 6356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6356] 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"..., 2097152) = 2097152 [pid 6356] munmap(0x7f320ee61000, 2097152) = 0 [pid 6356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6356] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6356] close(3) = 0 [pid 6356] mkdir("./file1", 0777) = 0 [pid 6356] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6356] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6356] chdir("./file1") = 0 [pid 6356] ioctl(4, LOOP_CLR_FD) = 0 [pid 6356] close(4) = 0 [pid 6356] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6356] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6356] ftruncate(5, 33587199) = 0 [ 185.421630][ T6356] loop0: detected capacity change from 0 to 4096 [ 185.433228][ T6356] NILFS (loop0): invalid segment: Checksum error in segment payload [ 185.441303][ T6356] NILFS (loop0): trying rollback from an earlier position [ 185.453637][ T6356] NILFS (loop0): recovery complete [ 185.459383][ T6357] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6356] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6356] exit_group(0) = ? [pid 6356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6356, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./637", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./637", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./637/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./637/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./637/binderfs") = 0 umount2("./637/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./637/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./637/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./637/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./637/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./637/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./637") = 0 mkdir("./638", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6358 ./strace-static-x86_64: Process 6358 attached [pid 6358] chdir("./638") = 0 [pid 6358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6358] setpgid(0, 0) = 0 [pid 6358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6358] write(3, "1000", 4) = 4 [pid 6358] close(3) = 0 [pid 6358] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6358] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6358] memfd_create("syzkaller", 0) = 3 [pid 6358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6358] 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"..., 2097152) = 2097152 [pid 6358] munmap(0x7f320ee61000, 2097152) = 0 [pid 6358] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6358] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6358] close(3) = 0 [pid 6358] mkdir("./file1", 0777) = 0 [pid 6358] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6358] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6358] chdir("./file1") = 0 [pid 6358] ioctl(4, LOOP_CLR_FD) = 0 [pid 6358] close(4) = 0 [pid 6358] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6358] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6358] ftruncate(5, 33587199) = 0 [ 185.650995][ T6358] loop0: detected capacity change from 0 to 4096 [ 185.662821][ T6358] NILFS (loop0): invalid segment: Checksum error in segment payload [ 185.670992][ T6358] NILFS (loop0): trying rollback from an earlier position [ 185.682013][ T6358] NILFS (loop0): recovery complete [ 185.687734][ T6359] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6358] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6358] exit_group(0) = ? [pid 6358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6358, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./638", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./638", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./638/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./638/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./638/binderfs") = 0 umount2("./638/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./638/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./638/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./638/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./638/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./638/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./638") = 0 mkdir("./639", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6360 attached [pid 6360] chdir("./639") = 0 [pid 6360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6360] setpgid(0, 0) = 0 [pid 6360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6360] write(3, "1000", 4) = 4 [pid 6360] close(3) = 0 [pid 6360] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6360] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6360 [pid 6360] memfd_create("syzkaller", 0) = 3 [pid 6360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6360] 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"..., 2097152) = 2097152 [pid 6360] munmap(0x7f320ee61000, 2097152) = 0 [pid 6360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6360] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6360] close(3) = 0 [pid 6360] mkdir("./file1", 0777) = 0 [pid 6360] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6360] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6360] chdir("./file1") = 0 [pid 6360] ioctl(4, LOOP_CLR_FD) = 0 [pid 6360] close(4) = 0 [pid 6360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6360] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6360] ftruncate(5, 33587199) = 0 [ 185.875208][ T6360] loop0: detected capacity change from 0 to 4096 [ 185.887615][ T6360] NILFS (loop0): invalid segment: Checksum error in segment payload [ 185.895910][ T6360] NILFS (loop0): trying rollback from an earlier position [ 185.906944][ T6360] NILFS (loop0): recovery complete [ 185.912589][ T6361] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6360] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6360] exit_group(0) = ? [pid 6360] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6360, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./639", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./639", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./639/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./639/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./639/binderfs") = 0 umount2("./639/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./639/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./639/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./639/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./639/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./639/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./639") = 0 mkdir("./640", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6362 attached , child_tidptr=0x555555c06690) = 6362 [pid 6362] chdir("./640") = 0 [pid 6362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6362] setpgid(0, 0) = 0 [pid 6362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6362] write(3, "1000", 4) = 4 [pid 6362] close(3) = 0 [pid 6362] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6362] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6362] memfd_create("syzkaller", 0) = 3 [pid 6362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6362] 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"..., 2097152) = 2097152 [pid 6362] munmap(0x7f320ee61000, 2097152) = 0 [pid 6362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6362] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6362] close(3) = 0 [pid 6362] mkdir("./file1", 0777) = 0 [pid 6362] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6362] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6362] chdir("./file1") = 0 [pid 6362] ioctl(4, LOOP_CLR_FD) = 0 [pid 6362] close(4) = 0 [pid 6362] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6362] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6362] ftruncate(5, 33587199) = 0 [ 186.098406][ T6362] loop0: detected capacity change from 0 to 4096 [ 186.109912][ T6362] NILFS (loop0): invalid segment: Checksum error in segment payload [ 186.118120][ T6362] NILFS (loop0): trying rollback from an earlier position [ 186.129205][ T6362] NILFS (loop0): recovery complete [ 186.135234][ T6363] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6362] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6362] exit_group(0) = ? [pid 6362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6362, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./640", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./640", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./640/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./640/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./640/binderfs") = 0 umount2("./640/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./640/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./640/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./640/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./640/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./640/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./640") = 0 mkdir("./641", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6364 ./strace-static-x86_64: Process 6364 attached [pid 6364] chdir("./641") = 0 [pid 6364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6364] setpgid(0, 0) = 0 [pid 6364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6364] write(3, "1000", 4) = 4 [pid 6364] close(3) = 0 [pid 6364] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6364] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6364] memfd_create("syzkaller", 0) = 3 [pid 6364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6364] 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"..., 2097152) = 2097152 [pid 6364] munmap(0x7f320ee61000, 2097152) = 0 [pid 6364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6364] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6364] close(3) = 0 [pid 6364] mkdir("./file1", 0777) = 0 [pid 6364] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6364] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6364] chdir("./file1") = 0 [pid 6364] ioctl(4, LOOP_CLR_FD) = 0 [pid 6364] close(4) = 0 [pid 6364] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6364] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6364] ftruncate(5, 33587199) = 0 [ 186.321192][ T6364] loop0: detected capacity change from 0 to 4096 [ 186.333446][ T6364] NILFS (loop0): invalid segment: Checksum error in segment payload [ 186.341596][ T6364] NILFS (loop0): trying rollback from an earlier position [ 186.352506][ T6364] NILFS (loop0): recovery complete [ 186.358205][ T6365] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6364] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6364] exit_group(0) = ? [pid 6364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6364, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./641", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./641", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./641/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./641/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./641/binderfs") = 0 umount2("./641/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./641/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./641/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./641/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./641/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./641/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./641") = 0 mkdir("./642", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6366 ./strace-static-x86_64: Process 6366 attached [pid 6366] chdir("./642") = 0 [pid 6366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6366] setpgid(0, 0) = 0 [pid 6366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6366] write(3, "1000", 4) = 4 [pid 6366] close(3) = 0 [pid 6366] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6366] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6366] memfd_create("syzkaller", 0) = 3 [pid 6366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6366] 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"..., 2097152) = 2097152 [pid 6366] munmap(0x7f320ee61000, 2097152) = 0 [pid 6366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6366] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6366] close(3) = 0 [pid 6366] mkdir("./file1", 0777) = 0 [pid 6366] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6366] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6366] chdir("./file1") = 0 [pid 6366] ioctl(4, LOOP_CLR_FD) = 0 [pid 6366] close(4) = 0 [pid 6366] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6366] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6366] ftruncate(5, 33587199) = 0 [ 186.541899][ T6366] loop0: detected capacity change from 0 to 4096 [ 186.554766][ T6366] NILFS (loop0): invalid segment: Checksum error in segment payload [ 186.562881][ T6366] NILFS (loop0): trying rollback from an earlier position [ 186.573763][ T6366] NILFS (loop0): recovery complete [ 186.579332][ T6367] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6366] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6366] exit_group(0) = ? [pid 6366] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6366, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./642", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./642", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./642/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./642/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./642/binderfs") = 0 umount2("./642/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./642/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./642/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./642/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./642/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./642/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./642") = 0 mkdir("./643", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6368 attached , child_tidptr=0x555555c06690) = 6368 [pid 6368] chdir("./643") = 0 [pid 6368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6368] setpgid(0, 0) = 0 [pid 6368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6368] write(3, "1000", 4) = 4 [pid 6368] close(3) = 0 [pid 6368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6368] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6368] memfd_create("syzkaller", 0) = 3 [pid 6368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6368] 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"..., 2097152) = 2097152 [pid 6368] munmap(0x7f320ee61000, 2097152) = 0 [pid 6368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6368] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6368] close(3) = 0 [pid 6368] mkdir("./file1", 0777) = 0 [pid 6368] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6368] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6368] chdir("./file1") = 0 [pid 6368] ioctl(4, LOOP_CLR_FD) = 0 [pid 6368] close(4) = 0 [pid 6368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6368] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6368] ftruncate(5, 33587199) = 0 [ 186.770686][ T6368] loop0: detected capacity change from 0 to 4096 [ 186.783306][ T6368] NILFS (loop0): invalid segment: Checksum error in segment payload [ 186.791423][ T6368] NILFS (loop0): trying rollback from an earlier position [ 186.802898][ T6368] NILFS (loop0): recovery complete [ 186.808697][ T6369] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6368] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6368] exit_group(0) = ? [pid 6368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6368, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./643", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./643", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./643/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./643/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./643/binderfs") = 0 umount2("./643/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./643/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./643/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./643/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./643/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./643/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./643") = 0 mkdir("./644", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6370 ./strace-static-x86_64: Process 6370 attached [pid 6370] chdir("./644") = 0 [pid 6370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6370] setpgid(0, 0) = 0 [pid 6370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6370] write(3, "1000", 4) = 4 [pid 6370] close(3) = 0 [pid 6370] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6370] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6370] memfd_create("syzkaller", 0) = 3 [pid 6370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6370] 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"..., 2097152) = 2097152 [pid 6370] munmap(0x7f320ee61000, 2097152) = 0 [pid 6370] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6370] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6370] close(3) = 0 [pid 6370] mkdir("./file1", 0777) = 0 [pid 6370] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6370] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6370] chdir("./file1") = 0 [pid 6370] ioctl(4, LOOP_CLR_FD) = 0 [pid 6370] close(4) = 0 [pid 6370] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6370] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6370] ftruncate(5, 33587199) = 0 [ 186.999289][ T6370] loop0: detected capacity change from 0 to 4096 [ 187.012977][ T6370] NILFS (loop0): invalid segment: Checksum error in segment payload [ 187.021038][ T6370] NILFS (loop0): trying rollback from an earlier position [ 187.032004][ T6370] NILFS (loop0): recovery complete [ 187.037727][ T6371] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6370] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6370] exit_group(0) = ? [pid 6370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6370, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./644", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./644", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./644/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./644/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./644/binderfs") = 0 umount2("./644/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./644/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./644/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./644/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./644/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./644/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./644") = 0 mkdir("./645", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6372 attached , child_tidptr=0x555555c06690) = 6372 [pid 6372] chdir("./645") = 0 [pid 6372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6372] setpgid(0, 0) = 0 [pid 6372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6372] write(3, "1000", 4) = 4 [pid 6372] close(3) = 0 [pid 6372] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6372] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6372] memfd_create("syzkaller", 0) = 3 [pid 6372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6372] 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"..., 2097152) = 2097152 [pid 6372] munmap(0x7f320ee61000, 2097152) = 0 [pid 6372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6372] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6372] close(3) = 0 [pid 6372] mkdir("./file1", 0777) = 0 [pid 6372] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6372] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6372] chdir("./file1") = 0 [pid 6372] ioctl(4, LOOP_CLR_FD) = 0 [pid 6372] close(4) = 0 [pid 6372] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6372] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6372] ftruncate(5, 33587199) = 0 [ 187.239284][ T6372] loop0: detected capacity change from 0 to 4096 [ 187.251213][ T6372] NILFS (loop0): invalid segment: Checksum error in segment payload [ 187.259204][ T6372] NILFS (loop0): trying rollback from an earlier position [ 187.271110][ T6372] NILFS (loop0): recovery complete [ 187.277068][ T6373] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6372] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6372] exit_group(0) = ? [pid 6372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6372, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./645", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./645", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./645/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./645/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./645/binderfs") = 0 umount2("./645/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./645/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./645/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./645/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./645/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./645/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./645") = 0 mkdir("./646", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6374 attached [pid 6374] chdir("./646") = 0 [pid 6374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6374 [pid 6374] <... prctl resumed>) = 0 [pid 6374] setpgid(0, 0) = 0 [pid 6374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6374] write(3, "1000", 4) = 4 [pid 6374] close(3) = 0 [pid 6374] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6374] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6374] memfd_create("syzkaller", 0) = 3 [pid 6374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6374] 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"..., 2097152) = 2097152 [pid 6374] munmap(0x7f320ee61000, 2097152) = 0 [pid 6374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6374] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6374] close(3) = 0 [pid 6374] mkdir("./file1", 0777) = 0 [pid 6374] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6374] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6374] chdir("./file1") = 0 [pid 6374] ioctl(4, LOOP_CLR_FD) = 0 [pid 6374] close(4) = 0 [pid 6374] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6374] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6374] ftruncate(5, 33587199) = 0 [ 187.473806][ T6374] loop0: detected capacity change from 0 to 4096 [ 187.486199][ T6374] NILFS (loop0): invalid segment: Checksum error in segment payload [ 187.494385][ T6374] NILFS (loop0): trying rollback from an earlier position [ 187.505937][ T6374] NILFS (loop0): recovery complete [ 187.511678][ T6375] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6374] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6374] exit_group(0) = ? [pid 6374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6374, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./646", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./646", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./646/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./646/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./646/binderfs") = 0 umount2("./646/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./646/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./646/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./646/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./646/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./646/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./646") = 0 mkdir("./647", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6376 ./strace-static-x86_64: Process 6376 attached [pid 6376] chdir("./647") = 0 [pid 6376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6376] setpgid(0, 0) = 0 [pid 6376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6376] write(3, "1000", 4) = 4 [pid 6376] close(3) = 0 [pid 6376] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6376] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6376] memfd_create("syzkaller", 0) = 3 [pid 6376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6376] 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"..., 2097152) = 2097152 [pid 6376] munmap(0x7f320ee61000, 2097152) = 0 [pid 6376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6376] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6376] close(3) = 0 [pid 6376] mkdir("./file1", 0777) = 0 [pid 6376] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6376] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6376] chdir("./file1") = 0 [pid 6376] ioctl(4, LOOP_CLR_FD) = 0 [pid 6376] close(4) = 0 [pid 6376] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6376] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6376] ftruncate(5, 33587199) = 0 [ 187.691200][ T6376] loop0: detected capacity change from 0 to 4096 [ 187.703511][ T6376] NILFS (loop0): invalid segment: Checksum error in segment payload [ 187.711605][ T6376] NILFS (loop0): trying rollback from an earlier position [ 187.722648][ T6376] NILFS (loop0): recovery complete [ 187.728319][ T6377] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6376] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6376] exit_group(0) = ? [pid 6376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6376, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./647", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./647", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./647/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./647/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./647/binderfs") = 0 umount2("./647/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./647/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./647/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./647/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./647/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./647/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./647") = 0 mkdir("./648", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6378 ./strace-static-x86_64: Process 6378 attached [pid 6378] chdir("./648") = 0 [pid 6378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6378] setpgid(0, 0) = 0 [pid 6378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6378] write(3, "1000", 4) = 4 [pid 6378] close(3) = 0 [pid 6378] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6378] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6378] memfd_create("syzkaller", 0) = 3 [pid 6378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6378] 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"..., 2097152) = 2097152 [pid 6378] munmap(0x7f320ee61000, 2097152) = 0 [pid 6378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6378] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6378] close(3) = 0 [pid 6378] mkdir("./file1", 0777) = 0 [pid 6378] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6378] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6378] chdir("./file1") = 0 [pid 6378] ioctl(4, LOOP_CLR_FD) = 0 [pid 6378] close(4) = 0 [pid 6378] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6378] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6378] ftruncate(5, 33587199) = 0 [ 187.919519][ T6378] loop0: detected capacity change from 0 to 4096 [ 187.932283][ T6378] NILFS (loop0): invalid segment: Checksum error in segment payload [ 187.940356][ T6378] NILFS (loop0): trying rollback from an earlier position [ 187.951531][ T6378] NILFS (loop0): recovery complete [ 187.957281][ T6379] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6378] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6378] exit_group(0) = ? [pid 6378] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6378, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./648", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./648", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./648/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./648/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./648/binderfs") = 0 umount2("./648/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./648/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./648/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./648/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./648/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./648/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./648") = 0 mkdir("./649", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6380 attached , child_tidptr=0x555555c06690) = 6380 [pid 6380] chdir("./649") = 0 [pid 6380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6380] setpgid(0, 0) = 0 [pid 6380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6380] write(3, "1000", 4) = 4 [pid 6380] close(3) = 0 [pid 6380] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6380] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6380] memfd_create("syzkaller", 0) = 3 [pid 6380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6380] 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"..., 2097152) = 2097152 [pid 6380] munmap(0x7f320ee61000, 2097152) = 0 [pid 6380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6380] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6380] close(3) = 0 [pid 6380] mkdir("./file1", 0777) = 0 [pid 6380] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6380] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6380] chdir("./file1") = 0 [pid 6380] ioctl(4, LOOP_CLR_FD) = 0 [pid 6380] close(4) = 0 [pid 6380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6380] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6380] ftruncate(5, 33587199) = 0 [ 188.148230][ T6380] loop0: detected capacity change from 0 to 4096 [ 188.161756][ T6380] NILFS (loop0): invalid segment: Checksum error in segment payload [ 188.169815][ T6380] NILFS (loop0): trying rollback from an earlier position [ 188.181082][ T6380] NILFS (loop0): recovery complete [ 188.186692][ T6381] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6380] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6380] exit_group(0) = ? [pid 6380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6380, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./649", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./649", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./649/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./649/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./649/binderfs") = 0 umount2("./649/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./649/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./649/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./649/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./649/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./649/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./649") = 0 mkdir("./650", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6382 ./strace-static-x86_64: Process 6382 attached [pid 6382] chdir("./650") = 0 [pid 6382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6382] setpgid(0, 0) = 0 [pid 6382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6382] write(3, "1000", 4) = 4 [pid 6382] close(3) = 0 [pid 6382] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6382] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6382] memfd_create("syzkaller", 0) = 3 [pid 6382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6382] 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"..., 2097152) = 2097152 [pid 6382] munmap(0x7f320ee61000, 2097152) = 0 [pid 6382] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6382] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6382] close(3) = 0 [pid 6382] mkdir("./file1", 0777) = 0 [pid 6382] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6382] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6382] chdir("./file1") = 0 [pid 6382] ioctl(4, LOOP_CLR_FD) = 0 [pid 6382] close(4) = 0 [pid 6382] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6382] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6382] ftruncate(5, 33587199) = 0 [ 188.381180][ T6382] loop0: detected capacity change from 0 to 4096 [ 188.393109][ T6382] NILFS (loop0): invalid segment: Checksum error in segment payload [ 188.401128][ T6382] NILFS (loop0): trying rollback from an earlier position [ 188.412035][ T6382] NILFS (loop0): recovery complete [ 188.417698][ T6383] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6382] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6382] exit_group(0) = ? [pid 6382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6382, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./650", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./650", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./650/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./650/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./650/binderfs") = 0 umount2("./650/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./650/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./650/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./650/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./650/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./650/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./650") = 0 mkdir("./651", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6384 ./strace-static-x86_64: Process 6384 attached [pid 6384] chdir("./651") = 0 [pid 6384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6384] setpgid(0, 0) = 0 [pid 6384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6384] write(3, "1000", 4) = 4 [pid 6384] close(3) = 0 [pid 6384] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6384] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6384] memfd_create("syzkaller", 0) = 3 [pid 6384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6384] 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"..., 2097152) = 2097152 [pid 6384] munmap(0x7f320ee61000, 2097152) = 0 [pid 6384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6384] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6384] close(3) = 0 [pid 6384] mkdir("./file1", 0777) = 0 [pid 6384] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6384] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6384] chdir("./file1") = 0 [pid 6384] ioctl(4, LOOP_CLR_FD) = 0 [pid 6384] close(4) = 0 [pid 6384] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6384] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6384] ftruncate(5, 33587199) = 0 [ 188.605735][ T6384] loop0: detected capacity change from 0 to 4096 [ 188.618295][ T6384] NILFS (loop0): invalid segment: Checksum error in segment payload [ 188.626373][ T6384] NILFS (loop0): trying rollback from an earlier position [ 188.637378][ T6384] NILFS (loop0): recovery complete [ 188.642982][ T6385] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6384] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6384] exit_group(0) = ? [pid 6384] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6384, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./651", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./651", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./651/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./651/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./651/binderfs") = 0 umount2("./651/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./651/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./651/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./651/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./651/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./651/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./651") = 0 mkdir("./652", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6386 ./strace-static-x86_64: Process 6386 attached [pid 6386] chdir("./652") = 0 [pid 6386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6386] setpgid(0, 0) = 0 [pid 6386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6386] write(3, "1000", 4) = 4 [pid 6386] close(3) = 0 [pid 6386] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6386] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6386] memfd_create("syzkaller", 0) = 3 [pid 6386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6386] 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"..., 2097152) = 2097152 [pid 6386] munmap(0x7f320ee61000, 2097152) = 0 [pid 6386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6386] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6386] close(3) = 0 [pid 6386] mkdir("./file1", 0777) = 0 [pid 6386] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6386] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6386] chdir("./file1") = 0 [pid 6386] ioctl(4, LOOP_CLR_FD) = 0 [pid 6386] close(4) = 0 [pid 6386] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6386] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6386] ftruncate(5, 33587199) = 0 [ 188.840078][ T6386] loop0: detected capacity change from 0 to 4096 [ 188.852753][ T6386] NILFS (loop0): invalid segment: Checksum error in segment payload [ 188.860821][ T6386] NILFS (loop0): trying rollback from an earlier position [ 188.871984][ T6386] NILFS (loop0): recovery complete [ 188.877865][ T6387] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6386] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6386] exit_group(0) = ? [pid 6386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6386, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./652", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./652", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./652/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./652/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./652/binderfs") = 0 umount2("./652/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./652/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./652/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./652/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./652/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./652/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./652") = 0 mkdir("./653", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6388 ./strace-static-x86_64: Process 6388 attached [pid 6388] chdir("./653") = 0 [pid 6388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6388] setpgid(0, 0) = 0 [pid 6388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6388] write(3, "1000", 4) = 4 [pid 6388] close(3) = 0 [pid 6388] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6388] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6388] memfd_create("syzkaller", 0) = 3 [pid 6388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6388] 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"..., 2097152) = 2097152 [pid 6388] munmap(0x7f320ee61000, 2097152) = 0 [pid 6388] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6388] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6388] close(3) = 0 [pid 6388] mkdir("./file1", 0777) = 0 [pid 6388] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6388] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6388] chdir("./file1") = 0 [pid 6388] ioctl(4, LOOP_CLR_FD) = 0 [pid 6388] close(4) = 0 [pid 6388] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6388] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6388] ftruncate(5, 33587199) = 0 [ 189.068971][ T6388] loop0: detected capacity change from 0 to 4096 [ 189.080694][ T6388] NILFS (loop0): invalid segment: Checksum error in segment payload [ 189.088706][ T6388] NILFS (loop0): trying rollback from an earlier position [ 189.099805][ T6388] NILFS (loop0): recovery complete [ 189.105509][ T6389] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6388] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6388] exit_group(0) = ? [pid 6388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6388, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./653", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./653", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./653/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./653/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./653/binderfs") = 0 umount2("./653/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./653/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./653/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./653/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./653/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./653/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./653") = 0 mkdir("./654", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6390 attached , child_tidptr=0x555555c06690) = 6390 [pid 6390] chdir("./654") = 0 [pid 6390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6390] setpgid(0, 0) = 0 [pid 6390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6390] write(3, "1000", 4) = 4 [pid 6390] close(3) = 0 [pid 6390] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6390] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6390] memfd_create("syzkaller", 0) = 3 [pid 6390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6390] 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"..., 2097152) = 2097152 [pid 6390] munmap(0x7f320ee61000, 2097152) = 0 [pid 6390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6390] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6390] close(3) = 0 [pid 6390] mkdir("./file1", 0777) = 0 [pid 6390] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6390] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6390] chdir("./file1") = 0 [pid 6390] ioctl(4, LOOP_CLR_FD) = 0 [pid 6390] close(4) = 0 [pid 6390] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6390] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6390] ftruncate(5, 33587199) = 0 [ 189.291648][ T6390] loop0: detected capacity change from 0 to 4096 [ 189.302847][ T6390] NILFS (loop0): invalid segment: Checksum error in segment payload [ 189.310998][ T6390] NILFS (loop0): trying rollback from an earlier position [ 189.322080][ T6390] NILFS (loop0): recovery complete [ 189.327680][ T6391] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6390] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6390] exit_group(0) = ? [pid 6390] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6390, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./654", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./654", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./654/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./654/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./654/binderfs") = 0 umount2("./654/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./654/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./654/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./654/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./654/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./654/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./654") = 0 mkdir("./655", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6392 ./strace-static-x86_64: Process 6392 attached [pid 6392] chdir("./655") = 0 [pid 6392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6392] setpgid(0, 0) = 0 [pid 6392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6392] write(3, "1000", 4) = 4 [pid 6392] close(3) = 0 [pid 6392] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6392] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6392] memfd_create("syzkaller", 0) = 3 [pid 6392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6392] 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"..., 2097152) = 2097152 [pid 6392] munmap(0x7f320ee61000, 2097152) = 0 [pid 6392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6392] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6392] close(3) = 0 [pid 6392] mkdir("./file1", 0777) = 0 [pid 6392] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6392] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6392] chdir("./file1") = 0 [pid 6392] ioctl(4, LOOP_CLR_FD) = 0 [pid 6392] close(4) = 0 [pid 6392] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6392] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6392] ftruncate(5, 33587199) = 0 [ 189.524893][ T6392] loop0: detected capacity change from 0 to 4096 [ 189.537631][ T6392] NILFS (loop0): invalid segment: Checksum error in segment payload [ 189.545718][ T6392] NILFS (loop0): trying rollback from an earlier position [ 189.556992][ T6392] NILFS (loop0): recovery complete [ 189.562692][ T6393] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6392] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6392] exit_group(0) = ? [pid 6392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6392, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./655", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./655", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./655/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./655/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./655/binderfs") = 0 umount2("./655/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./655/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./655/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./655/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./655/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./655/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./655") = 0 mkdir("./656", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6394 ./strace-static-x86_64: Process 6394 attached [pid 6394] chdir("./656") = 0 [pid 6394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6394] setpgid(0, 0) = 0 [pid 6394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6394] write(3, "1000", 4) = 4 [pid 6394] close(3) = 0 [pid 6394] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6394] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6394] memfd_create("syzkaller", 0) = 3 [pid 6394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6394] 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"..., 2097152) = 2097152 [pid 6394] munmap(0x7f320ee61000, 2097152) = 0 [pid 6394] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6394] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6394] close(3) = 0 [pid 6394] mkdir("./file1", 0777) = 0 [pid 6394] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6394] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6394] chdir("./file1") = 0 [pid 6394] ioctl(4, LOOP_CLR_FD) = 0 [pid 6394] close(4) = 0 [pid 6394] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6394] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6394] ftruncate(5, 33587199) = 0 [ 189.742024][ T6394] loop0: detected capacity change from 0 to 4096 [ 189.755885][ T6394] NILFS (loop0): invalid segment: Checksum error in segment payload [ 189.763986][ T6394] NILFS (loop0): trying rollback from an earlier position [ 189.775282][ T6394] NILFS (loop0): recovery complete [ 189.781013][ T6395] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6394] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6394] exit_group(0) = ? [pid 6394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6394, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./656", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./656", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./656/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./656/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./656/binderfs") = 0 umount2("./656/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./656/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./656/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./656/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./656/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./656/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./656") = 0 mkdir("./657", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6396 ./strace-static-x86_64: Process 6396 attached [pid 6396] chdir("./657") = 0 [pid 6396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6396] setpgid(0, 0) = 0 [pid 6396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6396] write(3, "1000", 4) = 4 [pid 6396] close(3) = 0 [pid 6396] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6396] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6396] memfd_create("syzkaller", 0) = 3 [pid 6396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6396] 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"..., 2097152) = 2097152 [pid 6396] munmap(0x7f320ee61000, 2097152) = 0 [pid 6396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6396] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6396] close(3) = 0 [pid 6396] mkdir("./file1", 0777) = 0 [pid 6396] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6396] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6396] chdir("./file1") = 0 [pid 6396] ioctl(4, LOOP_CLR_FD) = 0 [pid 6396] close(4) = 0 [pid 6396] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6396] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6396] ftruncate(5, 33587199) = 0 [ 189.958282][ T6396] loop0: detected capacity change from 0 to 4096 [ 189.970770][ T6396] NILFS (loop0): invalid segment: Checksum error in segment payload [ 189.978761][ T6396] NILFS (loop0): trying rollback from an earlier position [ 189.990623][ T6396] NILFS (loop0): recovery complete [ 189.996305][ T6397] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6396] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6396] exit_group(0) = ? [pid 6396] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6396, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./657", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./657", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./657/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./657/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./657/binderfs") = 0 umount2("./657/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./657/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./657/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./657/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./657/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./657/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./657") = 0 mkdir("./658", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6398 ./strace-static-x86_64: Process 6398 attached [pid 6398] chdir("./658") = 0 [pid 6398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6398] setpgid(0, 0) = 0 [pid 6398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6398] write(3, "1000", 4) = 4 [pid 6398] close(3) = 0 [pid 6398] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6398] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6398] memfd_create("syzkaller", 0) = 3 [pid 6398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6398] 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"..., 2097152) = 2097152 [pid 6398] munmap(0x7f320ee61000, 2097152) = 0 [pid 6398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6398] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6398] close(3) = 0 [pid 6398] mkdir("./file1", 0777) = 0 [pid 6398] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6398] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6398] chdir("./file1") = 0 [pid 6398] ioctl(4, LOOP_CLR_FD) = 0 [pid 6398] close(4) = 0 [pid 6398] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6398] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6398] ftruncate(5, 33587199) = 0 [ 190.184623][ T6398] loop0: detected capacity change from 0 to 4096 [ 190.196737][ T6398] NILFS (loop0): invalid segment: Checksum error in segment payload [ 190.204776][ T6398] NILFS (loop0): trying rollback from an earlier position [ 190.216373][ T6398] NILFS (loop0): recovery complete [ 190.222107][ T6399] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6398] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6398] exit_group(0) = ? [pid 6398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6398, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./658", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./658", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./658/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./658/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./658/binderfs") = 0 umount2("./658/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./658/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./658/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./658/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./658/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./658/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./658") = 0 mkdir("./659", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6400 ./strace-static-x86_64: Process 6400 attached [pid 6400] chdir("./659") = 0 [pid 6400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6400] setpgid(0, 0) = 0 [pid 6400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6400] write(3, "1000", 4) = 4 [pid 6400] close(3) = 0 [pid 6400] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6400] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6400] memfd_create("syzkaller", 0) = 3 [pid 6400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6400] 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"..., 2097152) = 2097152 [pid 6400] munmap(0x7f320ee61000, 2097152) = 0 [pid 6400] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6400] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6400] close(3) = 0 [pid 6400] mkdir("./file1", 0777) = 0 [pid 6400] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6400] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6400] chdir("./file1") = 0 [pid 6400] ioctl(4, LOOP_CLR_FD) = 0 [pid 6400] close(4) = 0 [pid 6400] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6400] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6400] ftruncate(5, 33587199) = 0 [ 190.395656][ T6400] loop0: detected capacity change from 0 to 4096 [ 190.407667][ T6400] NILFS (loop0): invalid segment: Checksum error in segment payload [ 190.416238][ T6400] NILFS (loop0): trying rollback from an earlier position [ 190.427698][ T6400] NILFS (loop0): recovery complete [ 190.433391][ T6401] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6400] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6400] exit_group(0) = ? [pid 6400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6400, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./659", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./659", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./659/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./659/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./659/binderfs") = 0 umount2("./659/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./659/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./659/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./659/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./659/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./659/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./659") = 0 mkdir("./660", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6402 attached , child_tidptr=0x555555c06690) = 6402 [pid 6402] chdir("./660") = 0 [pid 6402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6402] setpgid(0, 0) = 0 [pid 6402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6402] write(3, "1000", 4) = 4 [pid 6402] close(3) = 0 [pid 6402] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6402] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6402] memfd_create("syzkaller", 0) = 3 [pid 6402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6402] 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"..., 2097152) = 2097152 [pid 6402] munmap(0x7f320ee61000, 2097152) = 0 [pid 6402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6402] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6402] close(3) = 0 [pid 6402] mkdir("./file1", 0777) = 0 [pid 6402] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6402] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6402] chdir("./file1") = 0 [pid 6402] ioctl(4, LOOP_CLR_FD) = 0 [pid 6402] close(4) = 0 [pid 6402] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6402] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6402] ftruncate(5, 33587199) = 0 [ 190.620001][ T6402] loop0: detected capacity change from 0 to 4096 [ 190.631975][ T6402] NILFS (loop0): invalid segment: Checksum error in segment payload [ 190.639975][ T6402] NILFS (loop0): trying rollback from an earlier position [ 190.651365][ T6402] NILFS (loop0): recovery complete [ 190.657012][ T6403] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6402] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6402] exit_group(0) = ? [pid 6402] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6402, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./660", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./660", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./660/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./660/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./660/binderfs") = 0 umount2("./660/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./660/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./660/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./660/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./660/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./660/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./660") = 0 mkdir("./661", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6404 ./strace-static-x86_64: Process 6404 attached [pid 6404] chdir("./661") = 0 [pid 6404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6404] setpgid(0, 0) = 0 [pid 6404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6404] write(3, "1000", 4) = 4 [pid 6404] close(3) = 0 [pid 6404] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6404] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6404] memfd_create("syzkaller", 0) = 3 [pid 6404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6404] 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"..., 2097152) = 2097152 [pid 6404] munmap(0x7f320ee61000, 2097152) = 0 [pid 6404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6404] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6404] close(3) = 0 [pid 6404] mkdir("./file1", 0777) = 0 [pid 6404] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6404] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6404] chdir("./file1") = 0 [pid 6404] ioctl(4, LOOP_CLR_FD) = 0 [pid 6404] close(4) = 0 [pid 6404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6404] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6404] ftruncate(5, 33587199) = 0 [ 190.845353][ T6404] loop0: detected capacity change from 0 to 4096 [ 190.857865][ T6404] NILFS (loop0): invalid segment: Checksum error in segment payload [ 190.866044][ T6404] NILFS (loop0): trying rollback from an earlier position [ 190.877844][ T6404] NILFS (loop0): recovery complete [ 190.883715][ T6405] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6404] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6404] exit_group(0) = ? [pid 6404] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6404, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./661", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./661", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./661/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./661/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./661/binderfs") = 0 umount2("./661/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./661/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./661/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./661/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./661/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./661/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./661") = 0 mkdir("./662", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6406 ./strace-static-x86_64: Process 6406 attached [pid 6406] chdir("./662") = 0 [pid 6406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6406] setpgid(0, 0) = 0 [pid 6406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6406] write(3, "1000", 4) = 4 [pid 6406] close(3) = 0 [pid 6406] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6406] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6406] memfd_create("syzkaller", 0) = 3 [pid 6406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6406] 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"..., 2097152) = 2097152 [pid 6406] munmap(0x7f320ee61000, 2097152) = 0 [pid 6406] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6406] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6406] close(3) = 0 [pid 6406] mkdir("./file1", 0777) = 0 [pid 6406] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6406] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6406] chdir("./file1") = 0 [pid 6406] ioctl(4, LOOP_CLR_FD) = 0 [pid 6406] close(4) = 0 [pid 6406] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6406] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6406] ftruncate(5, 33587199) = 0 [ 191.074216][ T6406] loop0: detected capacity change from 0 to 4096 [ 191.086555][ T6406] NILFS (loop0): invalid segment: Checksum error in segment payload [ 191.094630][ T6406] NILFS (loop0): trying rollback from an earlier position [ 191.105861][ T6406] NILFS (loop0): recovery complete [ 191.111586][ T6407] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6406] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6406] exit_group(0) = ? [pid 6406] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6406, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./662", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./662", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./662/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./662/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./662/binderfs") = 0 umount2("./662/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./662/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./662/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./662/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./662/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./662/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./662") = 0 mkdir("./663", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6408 ./strace-static-x86_64: Process 6408 attached [pid 6408] chdir("./663") = 0 [pid 6408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6408] setpgid(0, 0) = 0 [pid 6408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6408] write(3, "1000", 4) = 4 [pid 6408] close(3) = 0 [pid 6408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6408] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6408] memfd_create("syzkaller", 0) = 3 [pid 6408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6408] 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"..., 2097152) = 2097152 [pid 6408] munmap(0x7f320ee61000, 2097152) = 0 [pid 6408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6408] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6408] close(3) = 0 [pid 6408] mkdir("./file1", 0777) = 0 [pid 6408] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6408] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6408] chdir("./file1") = 0 [pid 6408] ioctl(4, LOOP_CLR_FD) = 0 [pid 6408] close(4) = 0 [pid 6408] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6408] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6408] ftruncate(5, 33587199) = 0 [ 191.312694][ T6408] loop0: detected capacity change from 0 to 4096 [ 191.324460][ T6408] NILFS (loop0): invalid segment: Checksum error in segment payload [ 191.332654][ T6408] NILFS (loop0): trying rollback from an earlier position [ 191.343659][ T6408] NILFS (loop0): recovery complete [ 191.349396][ T6409] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6408] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6408] exit_group(0) = ? [pid 6408] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6408, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./663", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./663", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./663/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./663/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./663/binderfs") = 0 umount2("./663/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./663/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./663/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./663/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./663/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./663/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./663") = 0 mkdir("./664", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6410 ./strace-static-x86_64: Process 6410 attached [pid 6410] chdir("./664") = 0 [pid 6410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6410] setpgid(0, 0) = 0 [pid 6410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6410] write(3, "1000", 4) = 4 [pid 6410] close(3) = 0 [pid 6410] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6410] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6410] memfd_create("syzkaller", 0) = 3 [pid 6410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6410] 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"..., 2097152) = 2097152 [pid 6410] munmap(0x7f320ee61000, 2097152) = 0 [pid 6410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6410] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6410] close(3) = 0 [pid 6410] mkdir("./file1", 0777) = 0 [pid 6410] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6410] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6410] chdir("./file1") = 0 [pid 6410] ioctl(4, LOOP_CLR_FD) = 0 [pid 6410] close(4) = 0 [pid 6410] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6410] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6410] ftruncate(5, 33587199) = 0 [ 191.537377][ T6410] loop0: detected capacity change from 0 to 4096 [ 191.549835][ T6410] NILFS (loop0): invalid segment: Checksum error in segment payload [ 191.558045][ T6410] NILFS (loop0): trying rollback from an earlier position [ 191.569570][ T6410] NILFS (loop0): recovery complete [ 191.575384][ T6411] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6410] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6410] exit_group(0) = ? [pid 6410] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6410, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./664", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./664", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./664/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./664/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./664/binderfs") = 0 umount2("./664/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./664/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./664/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./664/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./664/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./664/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./664") = 0 mkdir("./665", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6412 ./strace-static-x86_64: Process 6412 attached [pid 6412] chdir("./665") = 0 [pid 6412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6412] setpgid(0, 0) = 0 [pid 6412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6412] write(3, "1000", 4) = 4 [pid 6412] close(3) = 0 [pid 6412] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6412] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6412] memfd_create("syzkaller", 0) = 3 [pid 6412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6412] 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"..., 2097152) = 2097152 [pid 6412] munmap(0x7f320ee61000, 2097152) = 0 [pid 6412] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6412] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6412] close(3) = 0 [pid 6412] mkdir("./file1", 0777) = 0 [pid 6412] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6412] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6412] chdir("./file1") = 0 [pid 6412] ioctl(4, LOOP_CLR_FD) = 0 [pid 6412] close(4) = 0 [pid 6412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6412] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6412] ftruncate(5, 33587199) = 0 [ 191.770172][ T6412] loop0: detected capacity change from 0 to 4096 [ 191.783268][ T6412] NILFS (loop0): invalid segment: Checksum error in segment payload [ 191.791304][ T6412] NILFS (loop0): trying rollback from an earlier position [ 191.802229][ T6412] NILFS (loop0): recovery complete [ 191.808011][ T6413] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6412] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6412] exit_group(0) = ? [pid 6412] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6412, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./665", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./665", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./665/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./665/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./665/binderfs") = 0 umount2("./665/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./665/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./665/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./665/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./665/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./665/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./665") = 0 mkdir("./666", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6414 ./strace-static-x86_64: Process 6414 attached [pid 6414] chdir("./666") = 0 [pid 6414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6414] setpgid(0, 0) = 0 [pid 6414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6414] write(3, "1000", 4) = 4 [pid 6414] close(3) = 0 [pid 6414] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6414] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6414] memfd_create("syzkaller", 0) = 3 [pid 6414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6414] 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"..., 2097152) = 2097152 [pid 6414] munmap(0x7f320ee61000, 2097152) = 0 [pid 6414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6414] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6414] close(3) = 0 [pid 6414] mkdir("./file1", 0777) = 0 [pid 6414] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6414] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6414] chdir("./file1") = 0 [pid 6414] ioctl(4, LOOP_CLR_FD) = 0 [pid 6414] close(4) = 0 [pid 6414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6414] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6414] ftruncate(5, 33587199) = 0 [ 191.991162][ T6414] loop0: detected capacity change from 0 to 4096 [ 192.002927][ T6414] NILFS (loop0): invalid segment: Checksum error in segment payload [ 192.011471][ T6414] NILFS (loop0): trying rollback from an earlier position [ 192.022144][ T6414] NILFS (loop0): recovery complete [ 192.027903][ T6415] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6414] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6414] exit_group(0) = ? [pid 6414] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6414, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./666", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./666", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./666/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./666/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./666/binderfs") = 0 umount2("./666/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./666/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./666/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./666/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./666/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./666/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./666") = 0 mkdir("./667", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6416 ./strace-static-x86_64: Process 6416 attached [pid 6416] chdir("./667") = 0 [pid 6416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6416] setpgid(0, 0) = 0 [pid 6416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6416] write(3, "1000", 4) = 4 [pid 6416] close(3) = 0 [pid 6416] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6416] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6416] memfd_create("syzkaller", 0) = 3 [pid 6416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6416] 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"..., 2097152) = 2097152 [pid 6416] munmap(0x7f320ee61000, 2097152) = 0 [pid 6416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6416] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6416] close(3) = 0 [pid 6416] mkdir("./file1", 0777) = 0 [pid 6416] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6416] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6416] chdir("./file1") = 0 [pid 6416] ioctl(4, LOOP_CLR_FD) = 0 [pid 6416] close(4) = 0 [pid 6416] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6416] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6416] ftruncate(5, 33587199) = 0 [ 192.214307][ T6416] loop0: detected capacity change from 0 to 4096 [ 192.226836][ T6416] NILFS (loop0): invalid segment: Checksum error in segment payload [ 192.234880][ T6416] NILFS (loop0): trying rollback from an earlier position [ 192.246163][ T6416] NILFS (loop0): recovery complete [ 192.251843][ T6417] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6416] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6416] exit_group(0) = ? [pid 6416] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6416, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./667", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./667", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./667/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./667/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./667/binderfs") = 0 umount2("./667/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./667/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./667/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./667/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./667/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./667/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./667") = 0 mkdir("./668", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6418 ./strace-static-x86_64: Process 6418 attached [pid 6418] chdir("./668") = 0 [pid 6418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6418] setpgid(0, 0) = 0 [pid 6418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6418] write(3, "1000", 4) = 4 [pid 6418] close(3) = 0 [pid 6418] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6418] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6418] memfd_create("syzkaller", 0) = 3 [pid 6418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6418] 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"..., 2097152) = 2097152 [pid 6418] munmap(0x7f320ee61000, 2097152) = 0 [pid 6418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6418] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6418] close(3) = 0 [pid 6418] mkdir("./file1", 0777) = 0 [pid 6418] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6418] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6418] chdir("./file1") = 0 [pid 6418] ioctl(4, LOOP_CLR_FD) = 0 [pid 6418] close(4) = 0 [pid 6418] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6418] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6418] ftruncate(5, 33587199) = 0 [ 192.434603][ T6418] loop0: detected capacity change from 0 to 4096 [ 192.446831][ T6418] NILFS (loop0): invalid segment: Checksum error in segment payload [ 192.455131][ T6418] NILFS (loop0): trying rollback from an earlier position [ 192.467345][ T6418] NILFS (loop0): recovery complete [ 192.473267][ T6419] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6418] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6418] exit_group(0) = ? [pid 6418] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6418, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./668", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./668", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./668/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./668/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./668/binderfs") = 0 umount2("./668/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./668/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./668/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./668/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./668/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./668/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./668") = 0 mkdir("./669", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6420 ./strace-static-x86_64: Process 6420 attached [pid 6420] chdir("./669") = 0 [pid 6420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6420] setpgid(0, 0) = 0 [pid 6420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6420] write(3, "1000", 4) = 4 [pid 6420] close(3) = 0 [pid 6420] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6420] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6420] memfd_create("syzkaller", 0) = 3 [pid 6420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6420] 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"..., 2097152) = 2097152 [pid 6420] munmap(0x7f320ee61000, 2097152) = 0 [pid 6420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6420] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6420] close(3) = 0 [pid 6420] mkdir("./file1", 0777) = 0 [pid 6420] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6420] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6420] chdir("./file1") = 0 [pid 6420] ioctl(4, LOOP_CLR_FD) = 0 [pid 6420] close(4) = 0 [pid 6420] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6420] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6420] ftruncate(5, 33587199) = 0 [ 192.663698][ T6420] loop0: detected capacity change from 0 to 4096 [ 192.675546][ T6420] NILFS (loop0): invalid segment: Checksum error in segment payload [ 192.683584][ T6420] NILFS (loop0): trying rollback from an earlier position [ 192.694799][ T6420] NILFS (loop0): recovery complete [ 192.700570][ T6421] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6420] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6420] exit_group(0) = ? [pid 6420] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6420, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./669", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./669", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./669/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./669/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./669/binderfs") = 0 umount2("./669/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./669/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./669/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./669/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./669/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./669/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./669") = 0 mkdir("./670", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6422 attached , child_tidptr=0x555555c06690) = 6422 [pid 6422] chdir("./670") = 0 [pid 6422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6422] setpgid(0, 0) = 0 [pid 6422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6422] write(3, "1000", 4) = 4 [pid 6422] close(3) = 0 [pid 6422] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6422] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6422] memfd_create("syzkaller", 0) = 3 [pid 6422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6422] 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"..., 2097152) = 2097152 [pid 6422] munmap(0x7f320ee61000, 2097152) = 0 [pid 6422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6422] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6422] close(3) = 0 [pid 6422] mkdir("./file1", 0777) = 0 [pid 6422] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6422] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6422] chdir("./file1") = 0 [pid 6422] ioctl(4, LOOP_CLR_FD) = 0 [pid 6422] close(4) = 0 [pid 6422] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6422] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6422] ftruncate(5, 33587199) = 0 [ 192.899019][ T6422] loop0: detected capacity change from 0 to 4096 [ 192.911015][ T6422] NILFS (loop0): invalid segment: Checksum error in segment payload [ 192.919034][ T6422] NILFS (loop0): trying rollback from an earlier position [ 192.930491][ T6422] NILFS (loop0): recovery complete [ 192.936259][ T6423] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6422] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6422] exit_group(0) = ? [pid 6422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6422, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./670", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./670", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./670/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./670/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./670/binderfs") = 0 umount2("./670/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./670/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./670/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./670/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./670/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./670/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./670") = 0 mkdir("./671", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6424 ./strace-static-x86_64: Process 6424 attached [pid 6424] chdir("./671") = 0 [pid 6424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6424] setpgid(0, 0) = 0 [pid 6424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6424] write(3, "1000", 4) = 4 [pid 6424] close(3) = 0 [pid 6424] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6424] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6424] memfd_create("syzkaller", 0) = 3 [pid 6424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6424] 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"..., 2097152) = 2097152 [pid 6424] munmap(0x7f320ee61000, 2097152) = 0 [pid 6424] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6424] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6424] close(3) = 0 [pid 6424] mkdir("./file1", 0777) = 0 [pid 6424] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6424] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6424] chdir("./file1") = 0 [pid 6424] ioctl(4, LOOP_CLR_FD) = 0 [pid 6424] close(4) = 0 [pid 6424] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6424] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6424] ftruncate(5, 33587199) = 0 [ 193.124535][ T6424] loop0: detected capacity change from 0 to 4096 [ 193.137005][ T6424] NILFS (loop0): invalid segment: Checksum error in segment payload [ 193.145182][ T6424] NILFS (loop0): trying rollback from an earlier position [ 193.156433][ T6424] NILFS (loop0): recovery complete [ 193.162109][ T6425] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6424] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6424] exit_group(0) = ? [pid 6424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6424, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./671", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./671", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./671/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./671/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./671/binderfs") = 0 umount2("./671/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./671/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./671/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./671/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./671/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./671/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./671") = 0 mkdir("./672", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6426 ./strace-static-x86_64: Process 6426 attached [pid 6426] chdir("./672") = 0 [pid 6426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6426] setpgid(0, 0) = 0 [pid 6426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6426] write(3, "1000", 4) = 4 [pid 6426] close(3) = 0 [pid 6426] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6426] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6426] memfd_create("syzkaller", 0) = 3 [pid 6426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6426] 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"..., 2097152) = 2097152 [pid 6426] munmap(0x7f320ee61000, 2097152) = 0 [pid 6426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6426] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6426] close(3) = 0 [pid 6426] mkdir("./file1", 0777) = 0 [pid 6426] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6426] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6426] chdir("./file1") = 0 [pid 6426] ioctl(4, LOOP_CLR_FD) = 0 [pid 6426] close(4) = 0 [pid 6426] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6426] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6426] ftruncate(5, 33587199) = 0 [ 193.369309][ T6426] loop0: detected capacity change from 0 to 4096 [ 193.383921][ T6426] NILFS (loop0): invalid segment: Checksum error in segment payload [ 193.392194][ T6426] NILFS (loop0): trying rollback from an earlier position [ 193.406927][ T6426] NILFS (loop0): recovery complete [ 193.423579][ T6427] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6426] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6426] exit_group(0) = ? [pid 6426] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6426, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./672", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./672", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./672/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./672/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./672/binderfs") = 0 umount2("./672/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./672/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./672/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./672/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./672/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./672/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./672") = 0 mkdir("./673", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6428 ./strace-static-x86_64: Process 6428 attached [pid 6428] chdir("./673") = 0 [pid 6428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6428] setpgid(0, 0) = 0 [pid 6428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6428] write(3, "1000", 4) = 4 [pid 6428] close(3) = 0 [pid 6428] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6428] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6428] memfd_create("syzkaller", 0) = 3 [pid 6428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6428] 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"..., 2097152) = 2097152 [pid 6428] munmap(0x7f320ee61000, 2097152) = 0 [pid 6428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6428] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6428] close(3) = 0 [pid 6428] mkdir("./file1", 0777) = 0 [pid 6428] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6428] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6428] chdir("./file1") = 0 [pid 6428] ioctl(4, LOOP_CLR_FD) = 0 [pid 6428] close(4) = 0 [pid 6428] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6428] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6428] ftruncate(5, 33587199) = 0 [ 193.655781][ T6428] loop0: detected capacity change from 0 to 4096 [ 193.668490][ T6428] NILFS (loop0): invalid segment: Checksum error in segment payload [ 193.676953][ T6428] NILFS (loop0): trying rollback from an earlier position [ 193.688821][ T6428] NILFS (loop0): recovery complete [ 193.694648][ T6429] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6428] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6428] exit_group(0) = ? [pid 6428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6428, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./673", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./673", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./673/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./673/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./673/binderfs") = 0 umount2("./673/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./673/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./673/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./673/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./673/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./673/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./673") = 0 mkdir("./674", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6430 attached [pid 6430] chdir("./674") = 0 [pid 6430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6430 [pid 6430] <... prctl resumed>) = 0 [pid 6430] setpgid(0, 0) = 0 [pid 6430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6430] write(3, "1000", 4) = 4 [pid 6430] close(3) = 0 [pid 6430] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6430] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6430] memfd_create("syzkaller", 0) = 3 [pid 6430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6430] 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"..., 2097152) = 2097152 [pid 6430] munmap(0x7f320ee61000, 2097152) = 0 [pid 6430] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6430] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6430] close(3) = 0 [pid 6430] mkdir("./file1", 0777) = 0 [pid 6430] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6430] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6430] chdir("./file1") = 0 [pid 6430] ioctl(4, LOOP_CLR_FD) = 0 [pid 6430] close(4) = 0 [pid 6430] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6430] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6430] ftruncate(5, 33587199) = 0 [ 193.886833][ T6430] loop0: detected capacity change from 0 to 4096 [ 193.899452][ T6430] NILFS (loop0): invalid segment: Checksum error in segment payload [ 193.907644][ T6430] NILFS (loop0): trying rollback from an earlier position [ 193.919012][ T6430] NILFS (loop0): recovery complete [ 193.924850][ T6431] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6430] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6430] exit_group(0) = ? [pid 6430] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6430, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./674", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./674", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./674/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./674/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./674/binderfs") = 0 umount2("./674/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./674/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./674/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./674/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./674/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./674/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./674") = 0 mkdir("./675", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6432 ./strace-static-x86_64: Process 6432 attached [pid 6432] chdir("./675") = 0 [pid 6432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6432] setpgid(0, 0) = 0 [pid 6432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6432] write(3, "1000", 4) = 4 [pid 6432] close(3) = 0 [pid 6432] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6432] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6432] memfd_create("syzkaller", 0) = 3 [pid 6432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6432] 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"..., 2097152) = 2097152 [pid 6432] munmap(0x7f320ee61000, 2097152) = 0 [pid 6432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6432] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6432] close(3) = 0 [pid 6432] mkdir("./file1", 0777) = 0 [pid 6432] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6432] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6432] chdir("./file1") = 0 [pid 6432] ioctl(4, LOOP_CLR_FD) = 0 [pid 6432] close(4) = 0 [pid 6432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6432] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6432] ftruncate(5, 33587199) = 0 [ 194.114520][ T6432] loop0: detected capacity change from 0 to 4096 [ 194.126999][ T6432] NILFS (loop0): invalid segment: Checksum error in segment payload [ 194.135048][ T6432] NILFS (loop0): trying rollback from an earlier position [ 194.146312][ T6432] NILFS (loop0): recovery complete [ 194.152128][ T6433] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6432] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6432] exit_group(0) = ? [pid 6432] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6432, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./675", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./675", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./675/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./675/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./675/binderfs") = 0 umount2("./675/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./675/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./675/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./675/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./675/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./675/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./675") = 0 mkdir("./676", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6434 attached , child_tidptr=0x555555c06690) = 6434 [pid 6434] chdir("./676") = 0 [pid 6434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6434] setpgid(0, 0) = 0 [pid 6434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6434] write(3, "1000", 4) = 4 [pid 6434] close(3) = 0 [pid 6434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6434] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6434] memfd_create("syzkaller", 0) = 3 [pid 6434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6434] 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"..., 2097152) = 2097152 [pid 6434] munmap(0x7f320ee61000, 2097152) = 0 [pid 6434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6434] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6434] close(3) = 0 [pid 6434] mkdir("./file1", 0777) = 0 [pid 6434] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6434] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6434] chdir("./file1") = 0 [pid 6434] ioctl(4, LOOP_CLR_FD) = 0 [pid 6434] close(4) = 0 [pid 6434] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6434] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6434] ftruncate(5, 33587199) = 0 [ 194.344576][ T6434] loop0: detected capacity change from 0 to 4096 [ 194.356366][ T6434] NILFS (loop0): invalid segment: Checksum error in segment payload [ 194.364414][ T6434] NILFS (loop0): trying rollback from an earlier position [ 194.375851][ T6434] NILFS (loop0): recovery complete [ 194.381584][ T6435] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6434] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6434] exit_group(0) = ? [pid 6434] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6434, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./676", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./676", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./676/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./676/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./676/binderfs") = 0 umount2("./676/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./676/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./676/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./676/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./676/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./676/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./676") = 0 mkdir("./677", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6436 ./strace-static-x86_64: Process 6436 attached [pid 6436] chdir("./677") = 0 [pid 6436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6436] setpgid(0, 0) = 0 [pid 6436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6436] write(3, "1000", 4) = 4 [pid 6436] close(3) = 0 [pid 6436] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6436] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6436] memfd_create("syzkaller", 0) = 3 [pid 6436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6436] 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"..., 2097152) = 2097152 [pid 6436] munmap(0x7f320ee61000, 2097152) = 0 [pid 6436] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6436] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6436] close(3) = 0 [pid 6436] mkdir("./file1", 0777) = 0 [pid 6436] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6436] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6436] chdir("./file1") = 0 [pid 6436] ioctl(4, LOOP_CLR_FD) = 0 [pid 6436] close(4) = 0 [pid 6436] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6436] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6436] ftruncate(5, 33587199) = 0 [ 194.579281][ T6436] loop0: detected capacity change from 0 to 4096 [ 194.591537][ T6436] NILFS (loop0): invalid segment: Checksum error in segment payload [ 194.599558][ T6436] NILFS (loop0): trying rollback from an earlier position [ 194.610627][ T6436] NILFS (loop0): recovery complete [ 194.616323][ T6437] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6436] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6436] exit_group(0) = ? [pid 6436] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6436, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./677", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./677", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./677/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./677/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./677/binderfs") = 0 umount2("./677/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./677/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./677/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./677/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./677/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./677/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./677") = 0 mkdir("./678", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6438 ./strace-static-x86_64: Process 6438 attached [pid 6438] chdir("./678") = 0 [pid 6438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6438] setpgid(0, 0) = 0 [pid 6438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6438] write(3, "1000", 4) = 4 [pid 6438] close(3) = 0 [pid 6438] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6438] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6438] memfd_create("syzkaller", 0) = 3 [pid 6438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6438] 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"..., 2097152) = 2097152 [pid 6438] munmap(0x7f320ee61000, 2097152) = 0 [pid 6438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6438] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6438] close(3) = 0 [pid 6438] mkdir("./file1", 0777) = 0 [pid 6438] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6438] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6438] chdir("./file1") = 0 [pid 6438] ioctl(4, LOOP_CLR_FD) = 0 [pid 6438] close(4) = 0 [pid 6438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6438] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6438] ftruncate(5, 33587199) = 0 [ 194.796941][ T6438] loop0: detected capacity change from 0 to 4096 [ 194.810572][ T6438] NILFS (loop0): invalid segment: Checksum error in segment payload [ 194.818611][ T6438] NILFS (loop0): trying rollback from an earlier position [ 194.829967][ T6438] NILFS (loop0): recovery complete [ 194.835584][ T6439] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6438] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6438] exit_group(0) = ? [pid 6438] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6438, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./678", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./678", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./678/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./678/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./678/binderfs") = 0 umount2("./678/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./678/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./678/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./678/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./678/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./678/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./678") = 0 mkdir("./679", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6440 attached , child_tidptr=0x555555c06690) = 6440 [pid 6440] chdir("./679") = 0 [pid 6440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6440] setpgid(0, 0) = 0 [pid 6440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6440] write(3, "1000", 4) = 4 [pid 6440] close(3) = 0 [pid 6440] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6440] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6440] memfd_create("syzkaller", 0) = 3 [pid 6440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6440] 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"..., 2097152) = 2097152 [pid 6440] munmap(0x7f320ee61000, 2097152) = 0 [pid 6440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6440] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6440] close(3) = 0 [pid 6440] mkdir("./file1", 0777) = 0 [pid 6440] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6440] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6440] chdir("./file1") = 0 [pid 6440] ioctl(4, LOOP_CLR_FD) = 0 [pid 6440] close(4) = 0 [pid 6440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6440] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6440] ftruncate(5, 33587199) = 0 [ 195.029664][ T6440] loop0: detected capacity change from 0 to 4096 [ 195.042009][ T6440] NILFS (loop0): invalid segment: Checksum error in segment payload [ 195.050000][ T6440] NILFS (loop0): trying rollback from an earlier position [ 195.061934][ T6440] NILFS (loop0): recovery complete [ 195.067560][ T6441] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6440] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6440] exit_group(0) = ? [pid 6440] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6440, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./679", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./679", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./679/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./679/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./679/binderfs") = 0 umount2("./679/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./679/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./679/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./679/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./679/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./679/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./679") = 0 mkdir("./680", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6442 ./strace-static-x86_64: Process 6442 attached [pid 6442] chdir("./680") = 0 [pid 6442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6442] setpgid(0, 0) = 0 [pid 6442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6442] write(3, "1000", 4) = 4 [pid 6442] close(3) = 0 [pid 6442] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6442] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6442] memfd_create("syzkaller", 0) = 3 [pid 6442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6442] 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"..., 2097152) = 2097152 [pid 6442] munmap(0x7f320ee61000, 2097152) = 0 [pid 6442] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6442] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6442] close(3) = 0 [pid 6442] mkdir("./file1", 0777) = 0 [pid 6442] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6442] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6442] chdir("./file1") = 0 [pid 6442] ioctl(4, LOOP_CLR_FD) = 0 [pid 6442] close(4) = 0 [pid 6442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6442] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6442] ftruncate(5, 33587199) = 0 [ 195.257258][ T6442] loop0: detected capacity change from 0 to 4096 [ 195.269250][ T6442] NILFS (loop0): invalid segment: Checksum error in segment payload [ 195.277290][ T6442] NILFS (loop0): trying rollback from an earlier position [ 195.288592][ T6442] NILFS (loop0): recovery complete [ 195.294377][ T6443] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6442] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6442] exit_group(0) = ? [pid 6442] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6442, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./680", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./680", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./680/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./680/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./680/binderfs") = 0 umount2("./680/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./680/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./680/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./680/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./680/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./680/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./680") = 0 mkdir("./681", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6444 attached , child_tidptr=0x555555c06690) = 6444 [pid 6444] chdir("./681") = 0 [pid 6444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6444] setpgid(0, 0) = 0 [pid 6444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6444] write(3, "1000", 4) = 4 [pid 6444] close(3) = 0 [pid 6444] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6444] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6444] memfd_create("syzkaller", 0) = 3 [pid 6444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6444] 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"..., 2097152) = 2097152 [pid 6444] munmap(0x7f320ee61000, 2097152) = 0 [pid 6444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6444] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6444] close(3) = 0 [pid 6444] mkdir("./file1", 0777) = 0 [pid 6444] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6444] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6444] chdir("./file1") = 0 [pid 6444] ioctl(4, LOOP_CLR_FD) = 0 [pid 6444] close(4) = 0 [pid 6444] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6444] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6444] ftruncate(5, 33587199) = 0 [ 195.487413][ T6444] loop0: detected capacity change from 0 to 4096 [ 195.499595][ T6444] NILFS (loop0): invalid segment: Checksum error in segment payload [ 195.507946][ T6444] NILFS (loop0): trying rollback from an earlier position [ 195.519311][ T6444] NILFS (loop0): recovery complete [ 195.525268][ T6445] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6444] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6444] exit_group(0) = ? [pid 6444] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6444, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./681", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./681", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./681/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./681/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./681/binderfs") = 0 umount2("./681/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./681/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./681/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./681/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./681/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./681/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./681") = 0 mkdir("./682", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6446 ./strace-static-x86_64: Process 6446 attached [pid 6446] chdir("./682") = 0 [pid 6446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6446] setpgid(0, 0) = 0 [pid 6446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6446] write(3, "1000", 4) = 4 [pid 6446] close(3) = 0 [pid 6446] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6446] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6446] memfd_create("syzkaller", 0) = 3 [pid 6446] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6446] 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"..., 2097152) = 2097152 [pid 6446] munmap(0x7f320ee61000, 2097152) = 0 [pid 6446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6446] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6446] close(3) = 0 [pid 6446] mkdir("./file1", 0777) = 0 [pid 6446] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6446] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6446] chdir("./file1") = 0 [pid 6446] ioctl(4, LOOP_CLR_FD) = 0 [pid 6446] close(4) = 0 [pid 6446] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6446] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6446] ftruncate(5, 33587199) = 0 [ 195.718569][ T6446] loop0: detected capacity change from 0 to 4096 [ 195.731293][ T6446] NILFS (loop0): invalid segment: Checksum error in segment payload [ 195.739288][ T6446] NILFS (loop0): trying rollback from an earlier position [ 195.750893][ T6446] NILFS (loop0): recovery complete [ 195.756733][ T6447] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6446] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6446] exit_group(0) = ? [pid 6446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6446, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./682", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./682", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./682/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./682/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./682/binderfs") = 0 umount2("./682/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./682/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./682/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./682/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./682/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./682/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./682") = 0 mkdir("./683", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6448 ./strace-static-x86_64: Process 6448 attached [pid 6448] chdir("./683") = 0 [pid 6448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6448] setpgid(0, 0) = 0 [pid 6448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6448] write(3, "1000", 4) = 4 [pid 6448] close(3) = 0 [pid 6448] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6448] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6448] memfd_create("syzkaller", 0) = 3 [pid 6448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6448] 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"..., 2097152) = 2097152 [pid 6448] munmap(0x7f320ee61000, 2097152) = 0 [pid 6448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6448] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6448] close(3) = 0 [pid 6448] mkdir("./file1", 0777) = 0 [pid 6448] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6448] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6448] chdir("./file1") = 0 [pid 6448] ioctl(4, LOOP_CLR_FD) = 0 [pid 6448] close(4) = 0 [pid 6448] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6448] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6448] ftruncate(5, 33587199) = 0 [ 195.939186][ T6448] loop0: detected capacity change from 0 to 4096 [ 195.951262][ T6448] NILFS (loop0): invalid segment: Checksum error in segment payload [ 195.959256][ T6448] NILFS (loop0): trying rollback from an earlier position [ 195.971698][ T6448] NILFS (loop0): recovery complete [ 195.977392][ T6449] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6448] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6448] exit_group(0) = ? [pid 6448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6448, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./683", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./683", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./683/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./683/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./683/binderfs") = 0 umount2("./683/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./683/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./683/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./683/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./683/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./683/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./683") = 0 mkdir("./684", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6450 ./strace-static-x86_64: Process 6450 attached [pid 6450] chdir("./684") = 0 [pid 6450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6450] setpgid(0, 0) = 0 [pid 6450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6450] write(3, "1000", 4) = 4 [pid 6450] close(3) = 0 [pid 6450] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6450] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6450] memfd_create("syzkaller", 0) = 3 [pid 6450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6450] 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"..., 2097152) = 2097152 [pid 6450] munmap(0x7f320ee61000, 2097152) = 0 [pid 6450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6450] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6450] close(3) = 0 [pid 6450] mkdir("./file1", 0777) = 0 [pid 6450] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6450] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6450] chdir("./file1") = 0 [pid 6450] ioctl(4, LOOP_CLR_FD) = 0 [pid 6450] close(4) = 0 [pid 6450] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6450] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6450] ftruncate(5, 33587199) = 0 [ 196.166576][ T6450] loop0: detected capacity change from 0 to 4096 [ 196.179404][ T6450] NILFS (loop0): invalid segment: Checksum error in segment payload [ 196.187501][ T6450] NILFS (loop0): trying rollback from an earlier position [ 196.199161][ T6450] NILFS (loop0): recovery complete [ 196.204918][ T6451] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6450] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6450] exit_group(0) = ? [pid 6450] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6450, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./684", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./684", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./684/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./684/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./684/binderfs") = 0 umount2("./684/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./684/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./684/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./684/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./684/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./684/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./684") = 0 mkdir("./685", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6452 attached [pid 6452] chdir("./685") = 0 [pid 6452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6452] setpgid(0, 0) = 0 [pid 6452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6452] write(3, "1000", 4) = 4 [pid 6452] close(3) = 0 [pid 6452] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6452] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6452] memfd_create("syzkaller", 0) = 3 [pid 6452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6452 [pid 6452] 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"..., 2097152) = 2097152 [pid 6452] munmap(0x7f320ee61000, 2097152) = 0 [pid 6452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6452] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6452] close(3) = 0 [pid 6452] mkdir("./file1", 0777) = 0 [pid 6452] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6452] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6452] chdir("./file1") = 0 [pid 6452] ioctl(4, LOOP_CLR_FD) = 0 [pid 6452] close(4) = 0 [pid 6452] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6452] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6452] ftruncate(5, 33587199) = 0 [ 196.394506][ T6452] loop0: detected capacity change from 0 to 4096 [ 196.407587][ T6452] NILFS (loop0): invalid segment: Checksum error in segment payload [ 196.415968][ T6452] NILFS (loop0): trying rollback from an earlier position [ 196.427379][ T6452] NILFS (loop0): recovery complete [ 196.433157][ T6453] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6452] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6452] exit_group(0) = ? [pid 6452] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6452, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./685", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./685", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./685/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./685/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./685/binderfs") = 0 umount2("./685/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./685/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./685/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./685/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./685/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./685/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./685") = 0 mkdir("./686", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6454 attached [pid 6454] chdir("./686") = 0 [pid 6454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6454] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6454 [pid 6454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6454] write(3, "1000", 4) = 4 [pid 6454] close(3) = 0 [pid 6454] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6454] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6454] memfd_create("syzkaller", 0) = 3 [pid 6454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6454] 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"..., 2097152) = 2097152 [pid 6454] munmap(0x7f320ee61000, 2097152) = 0 [pid 6454] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6454] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6454] close(3) = 0 [pid 6454] mkdir("./file1", 0777) = 0 [pid 6454] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6454] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6454] chdir("./file1") = 0 [pid 6454] ioctl(4, LOOP_CLR_FD) = 0 [pid 6454] close(4) = 0 [pid 6454] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6454] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6454] ftruncate(5, 33587199) = 0 [ 196.619424][ T6454] loop0: detected capacity change from 0 to 4096 [ 196.632007][ T6454] NILFS (loop0): invalid segment: Checksum error in segment payload [ 196.640055][ T6454] NILFS (loop0): trying rollback from an earlier position [ 196.651269][ T6454] NILFS (loop0): recovery complete [ 196.656863][ T6455] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6454] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6454] exit_group(0) = ? [pid 6454] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6454, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./686", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./686", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./686/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./686/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./686/binderfs") = 0 umount2("./686/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./686/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./686/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./686/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./686/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./686/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./686") = 0 mkdir("./687", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6456 ./strace-static-x86_64: Process 6456 attached [pid 6456] chdir("./687") = 0 [pid 6456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6456] setpgid(0, 0) = 0 [pid 6456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6456] write(3, "1000", 4) = 4 [pid 6456] close(3) = 0 [pid 6456] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6456] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6456] memfd_create("syzkaller", 0) = 3 [pid 6456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6456] 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"..., 2097152) = 2097152 [pid 6456] munmap(0x7f320ee61000, 2097152) = 0 [pid 6456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6456] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6456] close(3) = 0 [pid 6456] mkdir("./file1", 0777) = 0 [pid 6456] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6456] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6456] chdir("./file1") = 0 [pid 6456] ioctl(4, LOOP_CLR_FD) = 0 [pid 6456] close(4) = 0 [pid 6456] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6456] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6456] ftruncate(5, 33587199) = 0 [ 196.830037][ T6456] loop0: detected capacity change from 0 to 4096 [ 196.842311][ T6456] NILFS (loop0): invalid segment: Checksum error in segment payload [ 196.850353][ T6456] NILFS (loop0): trying rollback from an earlier position [ 196.861510][ T6456] NILFS (loop0): recovery complete [ 196.867291][ T6457] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6456] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6456] exit_group(0) = ? [pid 6456] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6456, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./687", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./687", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./687/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./687/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./687/binderfs") = 0 umount2("./687/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./687/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./687/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./687/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./687/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./687/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./687") = 0 mkdir("./688", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6458 ./strace-static-x86_64: Process 6458 attached [pid 6458] chdir("./688") = 0 [pid 6458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6458] setpgid(0, 0) = 0 [pid 6458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6458] write(3, "1000", 4) = 4 [pid 6458] close(3) = 0 [pid 6458] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6458] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6458] memfd_create("syzkaller", 0) = 3 [pid 6458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6458] 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"..., 2097152) = 2097152 [pid 6458] munmap(0x7f320ee61000, 2097152) = 0 [pid 6458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6458] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6458] close(3) = 0 [pid 6458] mkdir("./file1", 0777) = 0 [pid 6458] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6458] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6458] chdir("./file1") = 0 [pid 6458] ioctl(4, LOOP_CLR_FD) = 0 [pid 6458] close(4) = 0 [pid 6458] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6458] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6458] ftruncate(5, 33587199) = 0 [ 197.054642][ T6458] loop0: detected capacity change from 0 to 4096 [ 197.066886][ T6458] NILFS (loop0): invalid segment: Checksum error in segment payload [ 197.074908][ T6458] NILFS (loop0): trying rollback from an earlier position [ 197.086002][ T6458] NILFS (loop0): recovery complete [ 197.091600][ T6459] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6458] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6458] exit_group(0) = ? [pid 6458] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6458, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./688", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./688", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./688/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./688/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./688/binderfs") = 0 umount2("./688/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./688/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./688/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./688/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./688/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./688/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./688") = 0 mkdir("./689", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6460 attached , child_tidptr=0x555555c06690) = 6460 [pid 6460] chdir("./689") = 0 [pid 6460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6460] setpgid(0, 0) = 0 [pid 6460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6460] write(3, "1000", 4) = 4 [pid 6460] close(3) = 0 [pid 6460] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6460] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6460] memfd_create("syzkaller", 0) = 3 [pid 6460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6460] 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"..., 2097152) = 2097152 [pid 6460] munmap(0x7f320ee61000, 2097152) = 0 [pid 6460] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6460] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6460] close(3) = 0 [pid 6460] mkdir("./file1", 0777) = 0 [pid 6460] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6460] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6460] chdir("./file1") = 0 [pid 6460] ioctl(4, LOOP_CLR_FD) = 0 [pid 6460] close(4) = 0 [pid 6460] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6460] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6460] ftruncate(5, 33587199) = 0 [ 197.280132][ T6460] loop0: detected capacity change from 0 to 4096 [ 197.292522][ T6460] NILFS (loop0): invalid segment: Checksum error in segment payload [ 197.300553][ T6460] NILFS (loop0): trying rollback from an earlier position [ 197.311977][ T6460] NILFS (loop0): recovery complete [ 197.317749][ T6461] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6460] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6460] exit_group(0) = ? [pid 6460] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6460, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./689", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./689", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./689/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./689/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./689/binderfs") = 0 umount2("./689/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./689/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./689/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./689/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./689/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./689/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./689") = 0 mkdir("./690", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6462 attached [pid 6462] chdir("./690") = 0 [pid 6462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6462] setpgid(0, 0) = 0 [pid 6462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6462] write(3, "1000", 4) = 4 [pid 6462] close(3) = 0 [pid 6462] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6462] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6462] memfd_create("syzkaller", 0) = 3 [pid 6462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6462 [pid 6462] 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"..., 2097152) = 2097152 [pid 6462] munmap(0x7f320ee61000, 2097152) = 0 [pid 6462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6462] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6462] close(3) = 0 [pid 6462] mkdir("./file1", 0777) = 0 [pid 6462] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6462] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6462] chdir("./file1") = 0 [pid 6462] ioctl(4, LOOP_CLR_FD) = 0 [pid 6462] close(4) = 0 [pid 6462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6462] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6462] ftruncate(5, 33587199) = 0 [ 197.504444][ T6462] loop0: detected capacity change from 0 to 4096 [ 197.516266][ T6462] NILFS (loop0): invalid segment: Checksum error in segment payload [ 197.524319][ T6462] NILFS (loop0): trying rollback from an earlier position [ 197.535710][ T6462] NILFS (loop0): recovery complete [ 197.541868][ T6463] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6462] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6462] exit_group(0) = ? [pid 6462] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6462, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./690", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./690", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./690/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./690/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./690/binderfs") = 0 umount2("./690/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./690/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./690/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./690/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./690/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./690/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./690") = 0 mkdir("./691", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6464 attached [pid 6464] chdir("./691") = 0 [pid 6464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6464] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6464 [pid 6464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6464] write(3, "1000", 4) = 4 [pid 6464] close(3) = 0 [pid 6464] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6464] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6464] memfd_create("syzkaller", 0) = 3 [pid 6464] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6464] 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"..., 2097152) = 2097152 [pid 6464] munmap(0x7f320ee61000, 2097152) = 0 [pid 6464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6464] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6464] close(3) = 0 [pid 6464] mkdir("./file1", 0777) = 0 [pid 6464] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6464] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6464] chdir("./file1") = 0 [pid 6464] ioctl(4, LOOP_CLR_FD) = 0 [pid 6464] close(4) = 0 [pid 6464] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6464] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6464] ftruncate(5, 33587199) = 0 [ 197.736336][ T6464] loop0: detected capacity change from 0 to 4096 [ 197.749072][ T6464] NILFS (loop0): invalid segment: Checksum error in segment payload [ 197.757249][ T6464] NILFS (loop0): trying rollback from an earlier position [ 197.768755][ T6464] NILFS (loop0): recovery complete [ 197.774485][ T6465] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6464] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6464] exit_group(0) = ? [pid 6464] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6464, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./691", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./691", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./691/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./691/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./691/binderfs") = 0 umount2("./691/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./691/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./691/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./691/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./691/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./691/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./691") = 0 mkdir("./692", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6466 attached , child_tidptr=0x555555c06690) = 6466 [pid 6466] chdir("./692") = 0 [pid 6466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6466] setpgid(0, 0) = 0 [pid 6466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6466] write(3, "1000", 4) = 4 [pid 6466] close(3) = 0 [pid 6466] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6466] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6466] memfd_create("syzkaller", 0) = 3 [pid 6466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6466] 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"..., 2097152) = 2097152 [pid 6466] munmap(0x7f320ee61000, 2097152) = 0 [pid 6466] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6466] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6466] close(3) = 0 [pid 6466] mkdir("./file1", 0777) = 0 [pid 6466] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6466] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6466] chdir("./file1") = 0 [pid 6466] ioctl(4, LOOP_CLR_FD) = 0 [pid 6466] close(4) = 0 [pid 6466] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6466] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6466] ftruncate(5, 33587199) = 0 [ 197.965648][ T6466] loop0: detected capacity change from 0 to 4096 [ 197.978420][ T6466] NILFS (loop0): invalid segment: Checksum error in segment payload [ 197.986833][ T6466] NILFS (loop0): trying rollback from an earlier position [ 197.998202][ T6466] NILFS (loop0): recovery complete [ 198.004019][ T6467] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6466] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6466] exit_group(0) = ? [pid 6466] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6466, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./692", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./692", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./692/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./692/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./692/binderfs") = 0 umount2("./692/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./692/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./692/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./692/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./692/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./692/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./692") = 0 mkdir("./693", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6468 attached , child_tidptr=0x555555c06690) = 6468 [pid 6468] chdir("./693") = 0 [pid 6468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6468] setpgid(0, 0) = 0 [pid 6468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6468] write(3, "1000", 4) = 4 [pid 6468] close(3) = 0 [pid 6468] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6468] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6468] memfd_create("syzkaller", 0) = 3 [pid 6468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6468] 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"..., 2097152) = 2097152 [pid 6468] munmap(0x7f320ee61000, 2097152) = 0 [pid 6468] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6468] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6468] close(3) = 0 [pid 6468] mkdir("./file1", 0777) = 0 [pid 6468] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6468] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6468] chdir("./file1") = 0 [pid 6468] ioctl(4, LOOP_CLR_FD) = 0 [pid 6468] close(4) = 0 [pid 6468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6468] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6468] ftruncate(5, 33587199) = 0 [ 198.190736][ T6468] loop0: detected capacity change from 0 to 4096 [ 198.203732][ T6468] NILFS (loop0): invalid segment: Checksum error in segment payload [ 198.211891][ T6468] NILFS (loop0): trying rollback from an earlier position [ 198.223569][ T6468] NILFS (loop0): recovery complete [ 198.229237][ T6469] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6468] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6468] exit_group(0) = ? [pid 6468] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6468, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./693", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./693", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./693/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./693/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./693/binderfs") = 0 umount2("./693/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./693/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./693/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./693/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./693/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./693/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./693") = 0 mkdir("./694", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6470 attached [pid 6470] chdir("./694") = 0 [pid 6470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6470] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6470 [pid 6470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6470] write(3, "1000", 4) = 4 [pid 6470] close(3) = 0 [pid 6470] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6470] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6470] memfd_create("syzkaller", 0) = 3 [pid 6470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6470] 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"..., 2097152) = 2097152 [pid 6470] munmap(0x7f320ee61000, 2097152) = 0 [pid 6470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6470] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6470] close(3) = 0 [pid 6470] mkdir("./file1", 0777) = 0 [pid 6470] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6470] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6470] chdir("./file1") = 0 [pid 6470] ioctl(4, LOOP_CLR_FD) = 0 [pid 6470] close(4) = 0 [pid 6470] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6470] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6470] ftruncate(5, 33587199) = 0 [ 198.414463][ T6470] loop0: detected capacity change from 0 to 4096 [ 198.426358][ T6470] NILFS (loop0): invalid segment: Checksum error in segment payload [ 198.434499][ T6470] NILFS (loop0): trying rollback from an earlier position [ 198.445736][ T6470] NILFS (loop0): recovery complete [ 198.451476][ T6471] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6470] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6470] exit_group(0) = ? [pid 6470] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6470, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./694", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./694", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./694/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./694/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./694/binderfs") = 0 umount2("./694/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./694/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./694/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./694/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./694/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./694/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./694") = 0 mkdir("./695", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6472 ./strace-static-x86_64: Process 6472 attached [pid 6472] chdir("./695") = 0 [pid 6472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6472] setpgid(0, 0) = 0 [pid 6472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6472] write(3, "1000", 4) = 4 [pid 6472] close(3) = 0 [pid 6472] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6472] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6472] memfd_create("syzkaller", 0) = 3 [pid 6472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6472] 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"..., 2097152) = 2097152 [pid 6472] munmap(0x7f320ee61000, 2097152) = 0 [pid 6472] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6472] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6472] close(3) = 0 [pid 6472] mkdir("./file1", 0777) = 0 [pid 6472] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6472] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6472] chdir("./file1") = 0 [pid 6472] ioctl(4, LOOP_CLR_FD) = 0 [pid 6472] close(4) = 0 [pid 6472] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6472] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6472] ftruncate(5, 33587199) = 0 [ 198.627985][ T6472] loop0: detected capacity change from 0 to 4096 [ 198.640560][ T6472] NILFS (loop0): invalid segment: Checksum error in segment payload [ 198.648590][ T6472] NILFS (loop0): trying rollback from an earlier position [ 198.659736][ T6472] NILFS (loop0): recovery complete [ 198.665346][ T6473] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6472] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6472] exit_group(0) = ? [pid 6472] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6472, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./695", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./695", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./695/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./695/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./695/binderfs") = 0 umount2("./695/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./695/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./695/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./695/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./695/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./695/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./695") = 0 mkdir("./696", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6474 ./strace-static-x86_64: Process 6474 attached [pid 6474] chdir("./696") = 0 [pid 6474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6474] setpgid(0, 0) = 0 [pid 6474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6474] write(3, "1000", 4) = 4 [pid 6474] close(3) = 0 [pid 6474] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6474] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6474] memfd_create("syzkaller", 0) = 3 [pid 6474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6474] 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"..., 2097152) = 2097152 [pid 6474] munmap(0x7f320ee61000, 2097152) = 0 [pid 6474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6474] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6474] close(3) = 0 [pid 6474] mkdir("./file1", 0777) = 0 [pid 6474] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6474] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6474] chdir("./file1") = 0 [pid 6474] ioctl(4, LOOP_CLR_FD) = 0 [pid 6474] close(4) = 0 [pid 6474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6474] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6474] ftruncate(5, 33587199) = 0 [ 198.853912][ T6474] loop0: detected capacity change from 0 to 4096 [ 198.866883][ T6474] NILFS (loop0): invalid segment: Checksum error in segment payload [ 198.875040][ T6474] NILFS (loop0): trying rollback from an earlier position [ 198.886338][ T6474] NILFS (loop0): recovery complete [ 198.892080][ T6475] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6474] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6474] exit_group(0) = ? [pid 6474] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6474, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./696", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./696", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./696/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./696/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./696/binderfs") = 0 umount2("./696/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./696/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./696/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./696/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./696/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./696/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./696") = 0 mkdir("./697", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6476 ./strace-static-x86_64: Process 6476 attached [pid 6476] chdir("./697") = 0 [pid 6476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6476] setpgid(0, 0) = 0 [pid 6476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6476] write(3, "1000", 4) = 4 [pid 6476] close(3) = 0 [pid 6476] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6476] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6476] memfd_create("syzkaller", 0) = 3 [pid 6476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6476] 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"..., 2097152) = 2097152 [pid 6476] munmap(0x7f320ee61000, 2097152) = 0 [pid 6476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6476] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6476] close(3) = 0 [pid 6476] mkdir("./file1", 0777) = 0 [pid 6476] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6476] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6476] chdir("./file1") = 0 [pid 6476] ioctl(4, LOOP_CLR_FD) = 0 [pid 6476] close(4) = 0 [pid 6476] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6476] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6476] ftruncate(5, 33587199) = 0 [ 199.086935][ T6476] loop0: detected capacity change from 0 to 4096 [ 199.099038][ T6476] NILFS (loop0): invalid segment: Checksum error in segment payload [ 199.107181][ T6476] NILFS (loop0): trying rollback from an earlier position [ 199.118483][ T6476] NILFS (loop0): recovery complete [ 199.124338][ T6477] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6476] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6476] exit_group(0) = ? [pid 6476] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6476, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./697", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./697", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./697/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./697/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./697/binderfs") = 0 umount2("./697/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./697/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./697/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./697/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./697/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./697/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./697") = 0 mkdir("./698", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6478 ./strace-static-x86_64: Process 6478 attached [pid 6478] chdir("./698") = 0 [pid 6478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6478] setpgid(0, 0) = 0 [pid 6478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6478] write(3, "1000", 4) = 4 [pid 6478] close(3) = 0 [pid 6478] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6478] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6478] memfd_create("syzkaller", 0) = 3 [pid 6478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6478] 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"..., 2097152) = 2097152 [pid 6478] munmap(0x7f320ee61000, 2097152) = 0 [pid 6478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6478] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6478] close(3) = 0 [pid 6478] mkdir("./file1", 0777) = 0 [pid 6478] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6478] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6478] chdir("./file1") = 0 [pid 6478] ioctl(4, LOOP_CLR_FD) = 0 [pid 6478] close(4) = 0 [pid 6478] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6478] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6478] ftruncate(5, 33587199) = 0 [ 199.313740][ T6478] loop0: detected capacity change from 0 to 4096 [ 199.326164][ T6478] NILFS (loop0): invalid segment: Checksum error in segment payload [ 199.334982][ T6478] NILFS (loop0): trying rollback from an earlier position [ 199.346445][ T6478] NILFS (loop0): recovery complete [ 199.352151][ T6479] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6478] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6478] exit_group(0) = ? [pid 6478] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6478, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./698", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./698", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./698/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./698/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./698/binderfs") = 0 umount2("./698/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./698/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./698/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./698/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./698/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./698/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./698") = 0 mkdir("./699", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6480 attached [pid 6480] chdir("./699") = 0 [pid 6480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6480] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6480 [pid 6480] <... setpgid resumed>) = 0 [pid 6480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6480] write(3, "1000", 4) = 4 [pid 6480] close(3) = 0 [pid 6480] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6480] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6480] memfd_create("syzkaller", 0) = 3 [pid 6480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6480] 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"..., 2097152) = 2097152 [pid 6480] munmap(0x7f320ee61000, 2097152) = 0 [pid 6480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6480] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6480] close(3) = 0 [pid 6480] mkdir("./file1", 0777) = 0 [pid 6480] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6480] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6480] chdir("./file1") = 0 [pid 6480] ioctl(4, LOOP_CLR_FD) = 0 [pid 6480] close(4) = 0 [pid 6480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6480] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6480] ftruncate(5, 33587199) = 0 [ 199.546279][ T6480] loop0: detected capacity change from 0 to 4096 [ 199.558450][ T6480] NILFS (loop0): invalid segment: Checksum error in segment payload [ 199.566604][ T6480] NILFS (loop0): trying rollback from an earlier position [ 199.578281][ T6480] NILFS (loop0): recovery complete [ 199.583930][ T6481] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6480] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6480] exit_group(0) = ? [pid 6480] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6480, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./699", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./699", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./699/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./699/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./699/binderfs") = 0 umount2("./699/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./699/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./699/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./699/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./699/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./699/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./699") = 0 mkdir("./700", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6482 ./strace-static-x86_64: Process 6482 attached [pid 6482] chdir("./700") = 0 [pid 6482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6482] setpgid(0, 0) = 0 [pid 6482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6482] write(3, "1000", 4) = 4 [pid 6482] close(3) = 0 [pid 6482] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6482] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6482] memfd_create("syzkaller", 0) = 3 [pid 6482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6482] 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"..., 2097152) = 2097152 [pid 6482] munmap(0x7f320ee61000, 2097152) = 0 [pid 6482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6482] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6482] close(3) = 0 [pid 6482] mkdir("./file1", 0777) = 0 [pid 6482] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6482] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6482] chdir("./file1") = 0 [pid 6482] ioctl(4, LOOP_CLR_FD) = 0 [pid 6482] close(4) = 0 [pid 6482] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6482] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6482] ftruncate(5, 33587199) = 0 [ 199.784046][ T6482] loop0: detected capacity change from 0 to 4096 [ 199.795882][ T6482] NILFS (loop0): invalid segment: Checksum error in segment payload [ 199.803933][ T6482] NILFS (loop0): trying rollback from an earlier position [ 199.815459][ T6482] NILFS (loop0): recovery complete [ 199.821494][ T6483] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6482] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6482] exit_group(0) = ? [pid 6482] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6482, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./700", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./700", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./700/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./700/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./700/binderfs") = 0 umount2("./700/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./700/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./700/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./700/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./700/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./700/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./700") = 0 mkdir("./701", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6484 ./strace-static-x86_64: Process 6484 attached [pid 6484] chdir("./701") = 0 [pid 6484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6484] setpgid(0, 0) = 0 [pid 6484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6484] write(3, "1000", 4) = 4 [pid 6484] close(3) = 0 [pid 6484] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6484] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6484] memfd_create("syzkaller", 0) = 3 [pid 6484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6484] 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"..., 2097152) = 2097152 [pid 6484] munmap(0x7f320ee61000, 2097152) = 0 [pid 6484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6484] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6484] close(3) = 0 [pid 6484] mkdir("./file1", 0777) = 0 [pid 6484] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6484] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6484] chdir("./file1") = 0 [pid 6484] ioctl(4, LOOP_CLR_FD) = 0 [pid 6484] close(4) = 0 [pid 6484] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6484] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6484] ftruncate(5, 33587199) = 0 [ 200.018015][ T6484] loop0: detected capacity change from 0 to 4096 [ 200.030863][ T6484] NILFS (loop0): invalid segment: Checksum error in segment payload [ 200.038947][ T6484] NILFS (loop0): trying rollback from an earlier position [ 200.050120][ T6484] NILFS (loop0): recovery complete [ 200.055735][ T6485] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6484] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6484] exit_group(0) = ? [pid 6484] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6484, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./701", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./701", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./701/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./701/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./701/binderfs") = 0 umount2("./701/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./701/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./701/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./701/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./701/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./701/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./701") = 0 mkdir("./702", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6486 ./strace-static-x86_64: Process 6486 attached [pid 6486] chdir("./702") = 0 [pid 6486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6486] setpgid(0, 0) = 0 [pid 6486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6486] write(3, "1000", 4) = 4 [pid 6486] close(3) = 0 [pid 6486] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6486] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6486] memfd_create("syzkaller", 0) = 3 [pid 6486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6486] 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"..., 2097152) = 2097152 [pid 6486] munmap(0x7f320ee61000, 2097152) = 0 [pid 6486] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6486] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6486] close(3) = 0 [pid 6486] mkdir("./file1", 0777) = 0 [pid 6486] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6486] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6486] chdir("./file1") = 0 [pid 6486] ioctl(4, LOOP_CLR_FD) = 0 [pid 6486] close(4) = 0 [pid 6486] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6486] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6486] ftruncate(5, 33587199) = 0 [ 200.246345][ T6486] loop0: detected capacity change from 0 to 4096 [ 200.258895][ T6486] NILFS (loop0): invalid segment: Checksum error in segment payload [ 200.267217][ T6486] NILFS (loop0): trying rollback from an earlier position [ 200.278253][ T6486] NILFS (loop0): recovery complete [ 200.283914][ T6487] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6486] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6486] exit_group(0) = ? [pid 6486] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6486, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./702", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./702", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./702/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./702/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./702/binderfs") = 0 umount2("./702/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./702/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./702/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./702/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./702/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./702/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./702") = 0 mkdir("./703", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6488 attached [pid 6488] chdir("./703") = 0 [pid 6488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6488] setpgid(0, 0) = 0 [pid 6488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6488] write(3, "1000", 4) = 4 [pid 6488] close(3) = 0 [pid 6488] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6488] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6488] memfd_create("syzkaller", 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6488 [pid 6488] <... memfd_create resumed>) = 3 [pid 6488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6488] 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"..., 2097152) = 2097152 [pid 6488] munmap(0x7f320ee61000, 2097152) = 0 [pid 6488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6488] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6488] close(3) = 0 [pid 6488] mkdir("./file1", 0777) = 0 [pid 6488] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6488] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6488] chdir("./file1") = 0 [pid 6488] ioctl(4, LOOP_CLR_FD) = 0 [pid 6488] close(4) = 0 [pid 6488] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6488] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6488] ftruncate(5, 33587199) = 0 [ 200.474526][ T6488] loop0: detected capacity change from 0 to 4096 [ 200.487666][ T6488] NILFS (loop0): invalid segment: Checksum error in segment payload [ 200.495960][ T6488] NILFS (loop0): trying rollback from an earlier position [ 200.508498][ T6488] NILFS (loop0): recovery complete [ 200.514168][ T6489] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6488] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6488] exit_group(0) = ? [pid 6488] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6488, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./703", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./703", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./703/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./703/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./703/binderfs") = 0 umount2("./703/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./703/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./703/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./703/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./703/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./703/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./703") = 0 mkdir("./704", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6490 attached , child_tidptr=0x555555c06690) = 6490 [pid 6490] chdir("./704") = 0 [pid 6490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6490] setpgid(0, 0) = 0 [pid 6490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6490] write(3, "1000", 4) = 4 [pid 6490] close(3) = 0 [pid 6490] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6490] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6490] memfd_create("syzkaller", 0) = 3 [pid 6490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6490] 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"..., 2097152) = 2097152 [pid 6490] munmap(0x7f320ee61000, 2097152) = 0 [pid 6490] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6490] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6490] close(3) = 0 [pid 6490] mkdir("./file1", 0777) = 0 [pid 6490] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6490] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6490] chdir("./file1") = 0 [pid 6490] ioctl(4, LOOP_CLR_FD) = 0 [pid 6490] close(4) = 0 [pid 6490] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6490] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6490] ftruncate(5, 33587199) = 0 [ 200.708214][ T6490] loop0: detected capacity change from 0 to 4096 [ 200.720055][ T6490] NILFS (loop0): invalid segment: Checksum error in segment payload [ 200.728608][ T6490] NILFS (loop0): trying rollback from an earlier position [ 200.741143][ T6490] NILFS (loop0): recovery complete [ 200.746824][ T6491] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6490] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6490] exit_group(0) = ? [pid 6490] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6490, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./704", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./704", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./704/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./704/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./704/binderfs") = 0 umount2("./704/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./704/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./704/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./704/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./704/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./704/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./704") = 0 mkdir("./705", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6492 ./strace-static-x86_64: Process 6492 attached [pid 6492] chdir("./705") = 0 [pid 6492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6492] setpgid(0, 0) = 0 [pid 6492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6492] write(3, "1000", 4) = 4 [pid 6492] close(3) = 0 [pid 6492] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6492] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6492] memfd_create("syzkaller", 0) = 3 [pid 6492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6492] 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"..., 2097152) = 2097152 [pid 6492] munmap(0x7f320ee61000, 2097152) = 0 [pid 6492] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6492] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6492] close(3) = 0 [pid 6492] mkdir("./file1", 0777) = 0 [pid 6492] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6492] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6492] chdir("./file1") = 0 [pid 6492] ioctl(4, LOOP_CLR_FD) = 0 [pid 6492] close(4) = 0 [pid 6492] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6492] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6492] ftruncate(5, 33587199) = 0 [ 200.934827][ T6492] loop0: detected capacity change from 0 to 4096 [ 200.946845][ T6492] NILFS (loop0): invalid segment: Checksum error in segment payload [ 200.954870][ T6492] NILFS (loop0): trying rollback from an earlier position [ 200.965928][ T6492] NILFS (loop0): recovery complete [ 200.971628][ T6493] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6492] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6492] exit_group(0) = ? [pid 6492] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6492, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./705", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./705", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./705/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./705/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./705/binderfs") = 0 umount2("./705/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./705/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./705/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./705/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./705/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./705/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./705") = 0 mkdir("./706", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6494 ./strace-static-x86_64: Process 6494 attached [pid 6494] chdir("./706") = 0 [pid 6494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6494] setpgid(0, 0) = 0 [pid 6494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6494] write(3, "1000", 4) = 4 [pid 6494] close(3) = 0 [pid 6494] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6494] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6494] memfd_create("syzkaller", 0) = 3 [pid 6494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6494] 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"..., 2097152) = 2097152 [pid 6494] munmap(0x7f320ee61000, 2097152) = 0 [pid 6494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6494] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6494] close(3) = 0 [pid 6494] mkdir("./file1", 0777) = 0 [pid 6494] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6494] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6494] chdir("./file1") = 0 [pid 6494] ioctl(4, LOOP_CLR_FD) = 0 [pid 6494] close(4) = 0 [pid 6494] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6494] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6494] ftruncate(5, 33587199) = 0 [ 201.150776][ T6494] loop0: detected capacity change from 0 to 4096 [ 201.163717][ T6494] NILFS (loop0): invalid segment: Checksum error in segment payload [ 201.171801][ T6494] NILFS (loop0): trying rollback from an earlier position [ 201.183172][ T6494] NILFS (loop0): recovery complete [ 201.188771][ T6495] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6494] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6494] exit_group(0) = ? [pid 6494] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6494, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./706", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./706", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./706/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./706/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./706/binderfs") = 0 umount2("./706/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./706/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./706/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./706/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./706/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./706/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./706") = 0 mkdir("./707", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6496 attached [pid 6496] chdir("./707") = 0 [pid 6496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6496] setpgid(0, 0) = 0 [pid 6496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6496] write(3, "1000", 4) = 4 [pid 6496] close(3) = 0 [pid 6496] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6496] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6496] memfd_create("syzkaller", 0) = 3 [pid 6496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6496 [pid 6496] 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"..., 2097152) = 2097152 [pid 6496] munmap(0x7f320ee61000, 2097152) = 0 [pid 6496] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6496] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6496] close(3) = 0 [pid 6496] mkdir("./file1", 0777) = 0 [pid 6496] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6496] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6496] chdir("./file1") = 0 [pid 6496] ioctl(4, LOOP_CLR_FD) = 0 [pid 6496] close(4) = 0 [pid 6496] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6496] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6496] ftruncate(5, 33587199) = 0 [ 201.376464][ T6496] loop0: detected capacity change from 0 to 4096 [ 201.388347][ T6496] NILFS (loop0): invalid segment: Checksum error in segment payload [ 201.396465][ T6496] NILFS (loop0): trying rollback from an earlier position [ 201.408073][ T6496] NILFS (loop0): recovery complete [ 201.413928][ T6497] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6496] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6496] exit_group(0) = ? [pid 6496] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6496, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./707", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./707", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./707/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./707/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./707/binderfs") = 0 umount2("./707/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./707/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./707/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./707/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./707/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./707/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./707") = 0 mkdir("./708", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6498 attached , child_tidptr=0x555555c06690) = 6498 [pid 6498] chdir("./708") = 0 [pid 6498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6498] setpgid(0, 0) = 0 [pid 6498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6498] write(3, "1000", 4) = 4 [pid 6498] close(3) = 0 [pid 6498] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6498] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6498] memfd_create("syzkaller", 0) = 3 [pid 6498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6498] 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"..., 2097152) = 2097152 [pid 6498] munmap(0x7f320ee61000, 2097152) = 0 [pid 6498] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6498] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6498] close(3) = 0 [pid 6498] mkdir("./file1", 0777) = 0 [pid 6498] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6498] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6498] chdir("./file1") = 0 [pid 6498] ioctl(4, LOOP_CLR_FD) = 0 [pid 6498] close(4) = 0 [pid 6498] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6498] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6498] ftruncate(5, 33587199) = 0 [ 201.605108][ T6498] loop0: detected capacity change from 0 to 4096 [ 201.617002][ T6498] NILFS (loop0): invalid segment: Checksum error in segment payload [ 201.625344][ T6498] NILFS (loop0): trying rollback from an earlier position [ 201.636359][ T6498] NILFS (loop0): recovery complete [ 201.642129][ T6499] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6498] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6498] exit_group(0) = ? [pid 6498] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6498, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./708", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./708", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./708/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./708/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./708/binderfs") = 0 umount2("./708/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./708/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./708/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./708/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./708/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./708/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./708") = 0 mkdir("./709", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6500 ./strace-static-x86_64: Process 6500 attached [pid 6500] chdir("./709") = 0 [pid 6500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6500] setpgid(0, 0) = 0 [pid 6500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6500] write(3, "1000", 4) = 4 [pid 6500] close(3) = 0 [pid 6500] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6500] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6500] memfd_create("syzkaller", 0) = 3 [pid 6500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6500] 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"..., 2097152) = 2097152 [pid 6500] munmap(0x7f320ee61000, 2097152) = 0 [pid 6500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6500] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6500] close(3) = 0 [pid 6500] mkdir("./file1", 0777) = 0 [pid 6500] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6500] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6500] chdir("./file1") = 0 [pid 6500] ioctl(4, LOOP_CLR_FD) = 0 [pid 6500] close(4) = 0 [pid 6500] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6500] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6500] ftruncate(5, 33587199) = 0 [ 201.835514][ T6500] loop0: detected capacity change from 0 to 4096 [ 201.848119][ T6500] NILFS (loop0): invalid segment: Checksum error in segment payload [ 201.856213][ T6500] NILFS (loop0): trying rollback from an earlier position [ 201.867790][ T6500] NILFS (loop0): recovery complete [ 201.873527][ T6501] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6500] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6500] exit_group(0) = ? [pid 6500] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6500, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./709", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./709", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./709/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./709/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./709/binderfs") = 0 umount2("./709/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./709/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./709/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./709/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./709/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./709/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./709") = 0 mkdir("./710", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6502 attached [pid 6502] chdir("./710") = 0 [pid 6502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6502] setpgid(0, 0) = 0 [pid 6502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6502 [pid 6502] <... openat resumed>) = 3 [pid 6502] write(3, "1000", 4) = 4 [pid 6502] close(3) = 0 [pid 6502] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6502] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6502] memfd_create("syzkaller", 0) = 3 [pid 6502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6502] 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"..., 2097152) = 2097152 [pid 6502] munmap(0x7f320ee61000, 2097152) = 0 [pid 6502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6502] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6502] close(3) = 0 [pid 6502] mkdir("./file1", 0777) = 0 [pid 6502] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6502] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6502] chdir("./file1") = 0 [pid 6502] ioctl(4, LOOP_CLR_FD) = 0 [pid 6502] close(4) = 0 [pid 6502] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6502] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6502] ftruncate(5, 33587199) = 0 [ 202.061190][ T6502] loop0: detected capacity change from 0 to 4096 [ 202.072721][ T6502] NILFS (loop0): invalid segment: Checksum error in segment payload [ 202.080745][ T6502] NILFS (loop0): trying rollback from an earlier position [ 202.091792][ T6502] NILFS (loop0): recovery complete [ 202.097318][ T6503] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6502] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6502] exit_group(0) = ? [pid 6502] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6502, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./710", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./710", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./710/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./710/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./710/binderfs") = 0 umount2("./710/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./710/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./710/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./710/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./710/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./710/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./710") = 0 mkdir("./711", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6504 ./strace-static-x86_64: Process 6504 attached [pid 6504] chdir("./711") = 0 [pid 6504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6504] setpgid(0, 0) = 0 [pid 6504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6504] write(3, "1000", 4) = 4 [pid 6504] close(3) = 0 [pid 6504] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6504] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6504] memfd_create("syzkaller", 0) = 3 [pid 6504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6504] 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"..., 2097152) = 2097152 [pid 6504] munmap(0x7f320ee61000, 2097152) = 0 [pid 6504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6504] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6504] close(3) = 0 [pid 6504] mkdir("./file1", 0777) = 0 [pid 6504] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6504] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6504] chdir("./file1") = 0 [pid 6504] ioctl(4, LOOP_CLR_FD) = 0 [pid 6504] close(4) = 0 [pid 6504] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6504] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6504] ftruncate(5, 33587199) = 0 [ 202.286270][ T6504] loop0: detected capacity change from 0 to 4096 [ 202.298950][ T6504] NILFS (loop0): invalid segment: Checksum error in segment payload [ 202.307381][ T6504] NILFS (loop0): trying rollback from an earlier position [ 202.319051][ T6504] NILFS (loop0): recovery complete [ 202.324771][ T6505] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6504] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6504] exit_group(0) = ? [pid 6504] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6504, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./711", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./711", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./711/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./711/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./711/binderfs") = 0 umount2("./711/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./711/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./711/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./711/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./711/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./711/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./711") = 0 mkdir("./712", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6506 ./strace-static-x86_64: Process 6506 attached [pid 6506] chdir("./712") = 0 [pid 6506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6506] setpgid(0, 0) = 0 [pid 6506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6506] write(3, "1000", 4) = 4 [pid 6506] close(3) = 0 [pid 6506] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6506] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6506] memfd_create("syzkaller", 0) = 3 [pid 6506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6506] 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"..., 2097152) = 2097152 [pid 6506] munmap(0x7f320ee61000, 2097152) = 0 [pid 6506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6506] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6506] close(3) = 0 [pid 6506] mkdir("./file1", 0777) = 0 [pid 6506] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6506] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6506] chdir("./file1") = 0 [pid 6506] ioctl(4, LOOP_CLR_FD) = 0 [pid 6506] close(4) = 0 [pid 6506] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6506] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6506] ftruncate(5, 33587199) = 0 [ 202.501118][ T6506] loop0: detected capacity change from 0 to 4096 [ 202.513213][ T6506] NILFS (loop0): invalid segment: Checksum error in segment payload [ 202.521246][ T6506] NILFS (loop0): trying rollback from an earlier position [ 202.532862][ T6506] NILFS (loop0): recovery complete [ 202.538690][ T6507] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6506] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6506] exit_group(0) = ? [pid 6506] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6506, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./712", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./712", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./712/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./712/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./712/binderfs") = 0 umount2("./712/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./712/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./712/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./712/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./712/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./712/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./712") = 0 mkdir("./713", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6508 attached [pid 6508] chdir("./713") = 0 [pid 6508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6508 [pid 6508] <... prctl resumed>) = 0 [pid 6508] setpgid(0, 0) = 0 [pid 6508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6508] write(3, "1000", 4) = 4 [pid 6508] close(3) = 0 [pid 6508] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6508] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6508] memfd_create("syzkaller", 0) = 3 [pid 6508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6508] 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"..., 2097152) = 2097152 [pid 6508] munmap(0x7f320ee61000, 2097152) = 0 [pid 6508] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6508] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6508] close(3) = 0 [pid 6508] mkdir("./file1", 0777) = 0 [pid 6508] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6508] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6508] chdir("./file1") = 0 [pid 6508] ioctl(4, LOOP_CLR_FD) = 0 [pid 6508] close(4) = 0 [pid 6508] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6508] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6508] ftruncate(5, 33587199) = 0 [ 202.735860][ T6508] loop0: detected capacity change from 0 to 4096 [ 202.748106][ T6508] NILFS (loop0): invalid segment: Checksum error in segment payload [ 202.756451][ T6508] NILFS (loop0): trying rollback from an earlier position [ 202.767495][ T6508] NILFS (loop0): recovery complete [ 202.773314][ T6509] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6508] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6508] exit_group(0) = ? [pid 6508] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6508, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./713", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./713", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./713/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./713/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./713/binderfs") = 0 umount2("./713/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./713/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./713/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./713/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./713/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./713/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./713") = 0 mkdir("./714", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6510 attached , child_tidptr=0x555555c06690) = 6510 [pid 6510] chdir("./714") = 0 [pid 6510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6510] setpgid(0, 0) = 0 [pid 6510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6510] write(3, "1000", 4) = 4 [pid 6510] close(3) = 0 [pid 6510] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6510] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6510] memfd_create("syzkaller", 0) = 3 [pid 6510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6510] 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"..., 2097152) = 2097152 [pid 6510] munmap(0x7f320ee61000, 2097152) = 0 [pid 6510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6510] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6510] close(3) = 0 [pid 6510] mkdir("./file1", 0777) = 0 [pid 6510] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6510] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6510] chdir("./file1") = 0 [pid 6510] ioctl(4, LOOP_CLR_FD) = 0 [pid 6510] close(4) = 0 [pid 6510] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6510] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6510] ftruncate(5, 33587199) = 0 [ 202.968236][ T6510] loop0: detected capacity change from 0 to 4096 [ 202.980227][ T6510] NILFS (loop0): invalid segment: Checksum error in segment payload [ 202.988244][ T6510] NILFS (loop0): trying rollback from an earlier position [ 202.999514][ T6510] NILFS (loop0): recovery complete [ 203.005173][ T6511] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6510] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6510] exit_group(0) = ? [pid 6510] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6510, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./714", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./714", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./714/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./714/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./714/binderfs") = 0 umount2("./714/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./714/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./714/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./714/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./714/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./714/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./714") = 0 mkdir("./715", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6512 ./strace-static-x86_64: Process 6512 attached [pid 6512] chdir("./715") = 0 [pid 6512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6512] setpgid(0, 0) = 0 [pid 6512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6512] write(3, "1000", 4) = 4 [pid 6512] close(3) = 0 [pid 6512] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6512] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6512] memfd_create("syzkaller", 0) = 3 [pid 6512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6512] 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"..., 2097152) = 2097152 [pid 6512] munmap(0x7f320ee61000, 2097152) = 0 [pid 6512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6512] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6512] close(3) = 0 [pid 6512] mkdir("./file1", 0777) = 0 [pid 6512] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6512] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6512] chdir("./file1") = 0 [pid 6512] ioctl(4, LOOP_CLR_FD) = 0 [pid 6512] close(4) = 0 [pid 6512] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6512] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6512] ftruncate(5, 33587199) = 0 [ 203.204664][ T6512] loop0: detected capacity change from 0 to 4096 [ 203.217282][ T6512] NILFS (loop0): invalid segment: Checksum error in segment payload [ 203.225485][ T6512] NILFS (loop0): trying rollback from an earlier position [ 203.236876][ T6512] NILFS (loop0): recovery complete [ 203.242592][ T6513] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6512] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6512] exit_group(0) = ? [pid 6512] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6512, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./715", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./715", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./715/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./715/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./715/binderfs") = 0 umount2("./715/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./715/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./715/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./715/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./715/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./715/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./715") = 0 mkdir("./716", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6514 ./strace-static-x86_64: Process 6514 attached [pid 6514] chdir("./716") = 0 [pid 6514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6514] setpgid(0, 0) = 0 [pid 6514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6514] write(3, "1000", 4) = 4 [pid 6514] close(3) = 0 [pid 6514] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6514] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6514] memfd_create("syzkaller", 0) = 3 [pid 6514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6514] 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"..., 2097152) = 2097152 [pid 6514] munmap(0x7f320ee61000, 2097152) = 0 [pid 6514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6514] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6514] close(3) = 0 [pid 6514] mkdir("./file1", 0777) = 0 [pid 6514] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6514] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6514] chdir("./file1") = 0 [pid 6514] ioctl(4, LOOP_CLR_FD) = 0 [pid 6514] close(4) = 0 [pid 6514] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6514] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6514] ftruncate(5, 33587199) = 0 [ 203.439374][ T6514] loop0: detected capacity change from 0 to 4096 [ 203.451713][ T6514] NILFS (loop0): invalid segment: Checksum error in segment payload [ 203.459714][ T6514] NILFS (loop0): trying rollback from an earlier position [ 203.471558][ T6514] NILFS (loop0): recovery complete [ 203.477329][ T6515] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6514] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6514] exit_group(0) = ? [pid 6514] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6514, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./716", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./716", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./716/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./716/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./716/binderfs") = 0 umount2("./716/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./716/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./716/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./716/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./716/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./716/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./716") = 0 mkdir("./717", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6516 ./strace-static-x86_64: Process 6516 attached [pid 6516] chdir("./717") = 0 [pid 6516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6516] setpgid(0, 0) = 0 [pid 6516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6516] write(3, "1000", 4) = 4 [pid 6516] close(3) = 0 [pid 6516] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6516] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6516] memfd_create("syzkaller", 0) = 3 [pid 6516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6516] 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"..., 2097152) = 2097152 [pid 6516] munmap(0x7f320ee61000, 2097152) = 0 [pid 6516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6516] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6516] close(3) = 0 [pid 6516] mkdir("./file1", 0777) = 0 [pid 6516] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6516] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6516] chdir("./file1") = 0 [pid 6516] ioctl(4, LOOP_CLR_FD) = 0 [pid 6516] close(4) = 0 [pid 6516] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6516] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6516] ftruncate(5, 33587199) = 0 [ 203.665834][ T6516] loop0: detected capacity change from 0 to 4096 [ 203.678035][ T6516] NILFS (loop0): invalid segment: Checksum error in segment payload [ 203.686198][ T6516] NILFS (loop0): trying rollback from an earlier position [ 203.697907][ T6516] NILFS (loop0): recovery complete [ 203.703722][ T6517] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6516] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6516] exit_group(0) = ? [pid 6516] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6516, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./717", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./717", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./717/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./717/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./717/binderfs") = 0 umount2("./717/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./717/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./717/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./717/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./717/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./717/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./717") = 0 mkdir("./718", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6518 attached , child_tidptr=0x555555c06690) = 6518 [pid 6518] chdir("./718") = 0 [pid 6518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6518] setpgid(0, 0) = 0 [pid 6518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6518] write(3, "1000", 4) = 4 [pid 6518] close(3) = 0 [pid 6518] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6518] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6518] memfd_create("syzkaller", 0) = 3 [pid 6518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6518] 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"..., 2097152) = 2097152 [pid 6518] munmap(0x7f320ee61000, 2097152) = 0 [pid 6518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6518] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6518] close(3) = 0 [pid 6518] mkdir("./file1", 0777) = 0 [pid 6518] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6518] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6518] chdir("./file1") = 0 [pid 6518] ioctl(4, LOOP_CLR_FD) = 0 [pid 6518] close(4) = 0 [pid 6518] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6518] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6518] ftruncate(5, 33587199) = 0 [ 203.896581][ T6518] loop0: detected capacity change from 0 to 4096 [ 203.908892][ T6518] NILFS (loop0): invalid segment: Checksum error in segment payload [ 203.917018][ T6518] NILFS (loop0): trying rollback from an earlier position [ 203.928231][ T6518] NILFS (loop0): recovery complete [ 203.933861][ T6519] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6518] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6518] exit_group(0) = ? [pid 6518] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6518, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./718", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./718", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./718/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./718/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./718/binderfs") = 0 umount2("./718/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./718/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./718/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./718/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./718/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./718/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./718") = 0 mkdir("./719", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6520 attached [pid 6520] chdir("./719") = 0 [pid 6520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6520] setpgid(0, 0) = 0 [pid 6520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6520 [pid 6520] write(3, "1000", 4) = 4 [pid 6520] close(3) = 0 [pid 6520] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6520] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6520] memfd_create("syzkaller", 0) = 3 [pid 6520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6520] 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"..., 2097152) = 2097152 [pid 6520] munmap(0x7f320ee61000, 2097152) = 0 [pid 6520] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6520] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6520] close(3) = 0 [pid 6520] mkdir("./file1", 0777) = 0 [pid 6520] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6520] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6520] chdir("./file1") = 0 [pid 6520] ioctl(4, LOOP_CLR_FD) = 0 [pid 6520] close(4) = 0 [pid 6520] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6520] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6520] ftruncate(5, 33587199) = 0 [ 204.117554][ T6520] loop0: detected capacity change from 0 to 4096 [ 204.130012][ T6520] NILFS (loop0): invalid segment: Checksum error in segment payload [ 204.138153][ T6520] NILFS (loop0): trying rollback from an earlier position [ 204.148981][ T6520] NILFS (loop0): recovery complete [ 204.154626][ T6521] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6520] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6520] exit_group(0) = ? [pid 6520] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6520, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./719", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./719", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./719/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./719/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./719/binderfs") = 0 umount2("./719/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./719/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./719/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./719/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./719/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./719/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./719") = 0 mkdir("./720", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6522 ./strace-static-x86_64: Process 6522 attached [pid 6522] chdir("./720") = 0 [pid 6522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6522] setpgid(0, 0) = 0 [pid 6522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6522] write(3, "1000", 4) = 4 [pid 6522] close(3) = 0 [pid 6522] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6522] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6522] memfd_create("syzkaller", 0) = 3 [pid 6522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6522] 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"..., 2097152) = 2097152 [pid 6522] munmap(0x7f320ee61000, 2097152) = 0 [pid 6522] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6522] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6522] close(3) = 0 [pid 6522] mkdir("./file1", 0777) = 0 [pid 6522] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6522] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6522] chdir("./file1") = 0 [pid 6522] ioctl(4, LOOP_CLR_FD) = 0 [pid 6522] close(4) = 0 [pid 6522] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6522] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6522] ftruncate(5, 33587199) = 0 [ 204.334069][ T6522] loop0: detected capacity change from 0 to 4096 [ 204.346336][ T6522] NILFS (loop0): invalid segment: Checksum error in segment payload [ 204.354769][ T6522] NILFS (loop0): trying rollback from an earlier position [ 204.366422][ T6522] NILFS (loop0): recovery complete [ 204.372096][ T6523] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6522] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6522] exit_group(0) = ? [pid 6522] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6522, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./720", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./720", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./720/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./720/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./720/binderfs") = 0 umount2("./720/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./720/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./720/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./720/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./720/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./720/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./720") = 0 mkdir("./721", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6524 attached [pid 6524] chdir("./721" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6524 [pid 6524] <... chdir resumed>) = 0 [pid 6524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6524] setpgid(0, 0) = 0 [pid 6524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6524] write(3, "1000", 4) = 4 [pid 6524] close(3) = 0 [pid 6524] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6524] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6524] memfd_create("syzkaller", 0) = 3 [pid 6524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6524] 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"..., 2097152) = 2097152 [pid 6524] munmap(0x7f320ee61000, 2097152) = 0 [pid 6524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6524] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6524] close(3) = 0 [pid 6524] mkdir("./file1", 0777) = 0 [pid 6524] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6524] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6524] chdir("./file1") = 0 [pid 6524] ioctl(4, LOOP_CLR_FD) = 0 [pid 6524] close(4) = 0 [pid 6524] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6524] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6524] ftruncate(5, 33587199) = 0 [ 204.559749][ T6524] loop0: detected capacity change from 0 to 4096 [ 204.571384][ T6524] NILFS (loop0): invalid segment: Checksum error in segment payload [ 204.579381][ T6524] NILFS (loop0): trying rollback from an earlier position [ 204.589955][ T6524] NILFS (loop0): recovery complete [ 204.595576][ T6525] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6524] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6524] exit_group(0) = ? [pid 6524] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6524, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./721", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./721", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./721/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./721/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./721/binderfs") = 0 umount2("./721/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./721/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./721/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./721/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./721/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./721/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./721") = 0 mkdir("./722", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6526 ./strace-static-x86_64: Process 6526 attached [pid 6526] chdir("./722") = 0 [pid 6526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6526] setpgid(0, 0) = 0 [pid 6526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6526] write(3, "1000", 4) = 4 [pid 6526] close(3) = 0 [pid 6526] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6526] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6526] memfd_create("syzkaller", 0) = 3 [pid 6526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6526] 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"..., 2097152) = 2097152 [pid 6526] munmap(0x7f320ee61000, 2097152) = 0 [pid 6526] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6526] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6526] close(3) = 0 [pid 6526] mkdir("./file1", 0777) = 0 [pid 6526] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6526] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6526] chdir("./file1") = 0 [pid 6526] ioctl(4, LOOP_CLR_FD) = 0 [pid 6526] close(4) = 0 [pid 6526] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6526] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6526] ftruncate(5, 33587199) = 0 [ 204.788308][ T6526] loop0: detected capacity change from 0 to 4096 [ 204.800797][ T6526] NILFS (loop0): invalid segment: Checksum error in segment payload [ 204.808811][ T6526] NILFS (loop0): trying rollback from an earlier position [ 204.819848][ T6526] NILFS (loop0): recovery complete [ 204.825717][ T6527] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6526] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6526] exit_group(0) = ? [pid 6526] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6526, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- umount2("./722", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./722", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./722/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./722/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./722/binderfs") = 0 umount2("./722/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./722/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./722/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./722/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./722/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./722/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./722") = 0 mkdir("./723", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6528 ./strace-static-x86_64: Process 6528 attached [pid 6528] chdir("./723") = 0 [pid 6528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6528] setpgid(0, 0) = 0 [pid 6528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6528] write(3, "1000", 4) = 4 [pid 6528] close(3) = 0 [pid 6528] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6528] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6528] memfd_create("syzkaller", 0) = 3 [pid 6528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6528] 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"..., 2097152) = 2097152 [pid 6528] munmap(0x7f320ee61000, 2097152) = 0 [pid 6528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6528] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6528] close(3) = 0 [pid 6528] mkdir("./file1", 0777) = 0 [pid 6528] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6528] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6528] chdir("./file1") = 0 [pid 6528] ioctl(4, LOOP_CLR_FD) = 0 [pid 6528] close(4) = 0 [pid 6528] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6528] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6528] ftruncate(5, 33587199) = 0 [ 205.003582][ T6528] loop0: detected capacity change from 0 to 4096 [ 205.016123][ T6528] NILFS (loop0): invalid segment: Checksum error in segment payload [ 205.024440][ T6528] NILFS (loop0): trying rollback from an earlier position [ 205.035603][ T6528] NILFS (loop0): recovery complete [ 205.041411][ T6529] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6528] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6528] exit_group(0) = ? [pid 6528] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6528, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./723", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./723", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./723/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./723/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./723/binderfs") = 0 umount2("./723/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./723/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./723/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./723/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./723/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./723/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./723") = 0 mkdir("./724", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6530 attached , child_tidptr=0x555555c06690) = 6530 [pid 6530] chdir("./724") = 0 [pid 6530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6530] setpgid(0, 0) = 0 [pid 6530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6530] write(3, "1000", 4) = 4 [pid 6530] close(3) = 0 [pid 6530] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6530] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6530] memfd_create("syzkaller", 0) = 3 [pid 6530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6530] 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"..., 2097152) = 2097152 [pid 6530] munmap(0x7f320ee61000, 2097152) = 0 [pid 6530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6530] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6530] close(3) = 0 [pid 6530] mkdir("./file1", 0777) = 0 [pid 6530] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6530] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6530] chdir("./file1") = 0 [pid 6530] ioctl(4, LOOP_CLR_FD) = 0 [pid 6530] close(4) = 0 [pid 6530] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6530] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6530] ftruncate(5, 33587199) = 0 [ 205.232419][ T6530] loop0: detected capacity change from 0 to 4096 [ 205.244569][ T6530] NILFS (loop0): invalid segment: Checksum error in segment payload [ 205.252844][ T6530] NILFS (loop0): trying rollback from an earlier position [ 205.263721][ T6530] NILFS (loop0): recovery complete [ 205.269545][ T6531] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6530] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6530] exit_group(0) = ? [pid 6530] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6530, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./724", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./724", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./724/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./724/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./724/binderfs") = 0 umount2("./724/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./724/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./724/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./724/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./724/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./724/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./724") = 0 mkdir("./725", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6532 ./strace-static-x86_64: Process 6532 attached [pid 6532] chdir("./725") = 0 [pid 6532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6532] setpgid(0, 0) = 0 [pid 6532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6532] write(3, "1000", 4) = 4 [pid 6532] close(3) = 0 [pid 6532] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6532] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6532] memfd_create("syzkaller", 0) = 3 [pid 6532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6532] 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"..., 2097152) = 2097152 [pid 6532] munmap(0x7f320ee61000, 2097152) = 0 [pid 6532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6532] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6532] close(3) = 0 [pid 6532] mkdir("./file1", 0777) = 0 [pid 6532] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6532] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6532] chdir("./file1") = 0 [pid 6532] ioctl(4, LOOP_CLR_FD) = 0 [pid 6532] close(4) = 0 [pid 6532] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6532] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6532] ftruncate(5, 33587199) = 0 [ 205.470145][ T6532] loop0: detected capacity change from 0 to 4096 [ 205.482679][ T6532] NILFS (loop0): invalid segment: Checksum error in segment payload [ 205.490727][ T6532] NILFS (loop0): trying rollback from an earlier position [ 205.501776][ T6532] NILFS (loop0): recovery complete [ 205.507512][ T6533] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6532] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6532] exit_group(0) = ? [pid 6532] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6532, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./725", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./725", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./725/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./725/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./725/binderfs") = 0 umount2("./725/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./725/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./725/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./725/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./725/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./725/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./725") = 0 mkdir("./726", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6534 attached , child_tidptr=0x555555c06690) = 6534 [pid 6534] chdir("./726") = 0 [pid 6534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6534] setpgid(0, 0) = 0 [pid 6534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6534] write(3, "1000", 4) = 4 [pid 6534] close(3) = 0 [pid 6534] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6534] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6534] memfd_create("syzkaller", 0) = 3 [pid 6534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6534] 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"..., 2097152) = 2097152 [pid 6534] munmap(0x7f320ee61000, 2097152) = 0 [pid 6534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6534] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6534] close(3) = 0 [pid 6534] mkdir("./file1", 0777) = 0 [ 205.701061][ T6534] loop0: detected capacity change from 0 to 4096 [ 205.723037][ T6534] NILFS (loop0): invalid segment: Checksum error in segment payload [ 205.731032][ T6534] NILFS (loop0): trying rollback from an earlier position [ 205.742007][ T6534] NILFS (loop0): recovery complete [pid 6534] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6534] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6534] chdir("./file1") = 0 [pid 6534] ioctl(4, LOOP_CLR_FD) = 0 [pid 6534] close(4) = 0 [pid 6534] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6534] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6534] ftruncate(5, 33587199) = 0 [ 205.747549][ T6535] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6534] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6534] exit_group(0) = ? [pid 6534] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6534, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./726", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./726", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./726/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./726/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./726/binderfs") = 0 umount2("./726/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./726/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./726/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./726/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./726/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./726/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./726") = 0 mkdir("./727", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6536 ./strace-static-x86_64: Process 6536 attached [pid 6536] chdir("./727") = 0 [pid 6536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6536] setpgid(0, 0) = 0 [pid 6536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6536] write(3, "1000", 4) = 4 [pid 6536] close(3) = 0 [pid 6536] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6536] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6536] memfd_create("syzkaller", 0) = 3 [pid 6536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6536] 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"..., 2097152) = 2097152 [pid 6536] munmap(0x7f320ee61000, 2097152) = 0 [pid 6536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6536] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6536] close(3) = 0 [pid 6536] mkdir("./file1", 0777) = 0 [pid 6536] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6536] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6536] chdir("./file1") = 0 [pid 6536] ioctl(4, LOOP_CLR_FD) = 0 [pid 6536] close(4) = 0 [pid 6536] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6536] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6536] ftruncate(5, 33587199) = 0 [ 205.944520][ T6536] loop0: detected capacity change from 0 to 4096 [ 205.957381][ T6536] NILFS (loop0): invalid segment: Checksum error in segment payload [ 205.965493][ T6536] NILFS (loop0): trying rollback from an earlier position [ 205.977010][ T6536] NILFS (loop0): recovery complete [ 205.982631][ T6537] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6536] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6536] exit_group(0) = ? [pid 6536] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6536, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./727", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./727", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./727/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./727/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./727/binderfs") = 0 umount2("./727/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./727/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./727/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./727/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./727/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./727/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./727") = 0 mkdir("./728", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6538 ./strace-static-x86_64: Process 6538 attached [pid 6538] chdir("./728") = 0 [pid 6538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6538] setpgid(0, 0) = 0 [pid 6538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6538] write(3, "1000", 4) = 4 [pid 6538] close(3) = 0 [pid 6538] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6538] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6538] memfd_create("syzkaller", 0) = 3 [pid 6538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6538] 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"..., 2097152) = 2097152 [pid 6538] munmap(0x7f320ee61000, 2097152) = 0 [pid 6538] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6538] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6538] close(3) = 0 [pid 6538] mkdir("./file1", 0777) = 0 [pid 6538] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6538] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6538] chdir("./file1") = 0 [pid 6538] ioctl(4, LOOP_CLR_FD) = 0 [pid 6538] close(4) = 0 [pid 6538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6538] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6538] ftruncate(5, 33587199) = 0 [ 206.177786][ T6538] loop0: detected capacity change from 0 to 4096 [ 206.190679][ T6538] NILFS (loop0): invalid segment: Checksum error in segment payload [ 206.198700][ T6538] NILFS (loop0): trying rollback from an earlier position [ 206.209610][ T6538] NILFS (loop0): recovery complete [ 206.215496][ T6539] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6538] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6538] exit_group(0) = ? [pid 6538] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6538, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./728", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./728", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./728/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./728/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./728/binderfs") = 0 umount2("./728/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./728/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./728/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./728/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./728/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./728/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./728") = 0 mkdir("./729", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6540 attached , child_tidptr=0x555555c06690) = 6540 [pid 6540] chdir("./729") = 0 [pid 6540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6540] setpgid(0, 0) = 0 [pid 6540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6540] write(3, "1000", 4) = 4 [pid 6540] close(3) = 0 [pid 6540] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6540] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6540] memfd_create("syzkaller", 0) = 3 [pid 6540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6540] 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"..., 2097152) = 2097152 [pid 6540] munmap(0x7f320ee61000, 2097152) = 0 [pid 6540] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6540] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6540] close(3) = 0 [pid 6540] mkdir("./file1", 0777) = 0 [pid 6540] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6540] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6540] chdir("./file1") = 0 [pid 6540] ioctl(4, LOOP_CLR_FD) = 0 [pid 6540] close(4) = 0 [pid 6540] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6540] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6540] ftruncate(5, 33587199) = 0 [ 206.404881][ T6540] loop0: detected capacity change from 0 to 4096 [ 206.416855][ T6540] NILFS (loop0): invalid segment: Checksum error in segment payload [ 206.424885][ T6540] NILFS (loop0): trying rollback from an earlier position [ 206.436481][ T6540] NILFS (loop0): recovery complete [ 206.442138][ T6541] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6540] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6540] exit_group(0) = ? [pid 6540] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6540, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./729", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./729", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./729/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./729/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./729/binderfs") = 0 umount2("./729/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./729/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./729/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./729/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./729/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./729/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./729") = 0 mkdir("./730", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6542 attached , child_tidptr=0x555555c06690) = 6542 [pid 6542] chdir("./730") = 0 [pid 6542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6542] setpgid(0, 0) = 0 [pid 6542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6542] write(3, "1000", 4) = 4 [pid 6542] close(3) = 0 [pid 6542] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6542] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6542] memfd_create("syzkaller", 0) = 3 [pid 6542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6542] 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"..., 2097152) = 2097152 [pid 6542] munmap(0x7f320ee61000, 2097152) = 0 [pid 6542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6542] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6542] close(3) = 0 [pid 6542] mkdir("./file1", 0777) = 0 [pid 6542] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6542] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6542] chdir("./file1") = 0 [pid 6542] ioctl(4, LOOP_CLR_FD) = 0 [pid 6542] close(4) = 0 [pid 6542] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6542] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6542] ftruncate(5, 33587199) = 0 [ 206.635592][ T6542] loop0: detected capacity change from 0 to 4096 [ 206.647805][ T6542] NILFS (loop0): invalid segment: Checksum error in segment payload [ 206.656222][ T6542] NILFS (loop0): trying rollback from an earlier position [ 206.667854][ T6542] NILFS (loop0): recovery complete [ 206.673541][ T6543] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6542] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6542] exit_group(0) = ? [pid 6542] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6542, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./730", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./730", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./730/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./730/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./730/binderfs") = 0 umount2("./730/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./730/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./730/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./730/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./730/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./730/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./730") = 0 mkdir("./731", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6544 attached , child_tidptr=0x555555c06690) = 6544 [pid 6544] chdir("./731") = 0 [pid 6544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6544] setpgid(0, 0) = 0 [pid 6544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6544] write(3, "1000", 4) = 4 [pid 6544] close(3) = 0 [pid 6544] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6544] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6544] memfd_create("syzkaller", 0) = 3 [pid 6544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6544] 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"..., 2097152) = 2097152 [pid 6544] munmap(0x7f320ee61000, 2097152) = 0 [pid 6544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6544] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6544] close(3) = 0 [pid 6544] mkdir("./file1", 0777) = 0 [pid 6544] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6544] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6544] chdir("./file1") = 0 [pid 6544] ioctl(4, LOOP_CLR_FD) = 0 [pid 6544] close(4) = 0 [pid 6544] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6544] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6544] ftruncate(5, 33587199) = 0 [ 206.862276][ T6544] loop0: detected capacity change from 0 to 4096 [ 206.874792][ T6544] NILFS (loop0): invalid segment: Checksum error in segment payload [ 206.882957][ T6544] NILFS (loop0): trying rollback from an earlier position [ 206.894669][ T6544] NILFS (loop0): recovery complete [ 206.900852][ T6545] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6544] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6544] exit_group(0) = ? [pid 6544] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6544, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./731", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./731", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./731/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./731/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./731/binderfs") = 0 umount2("./731/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./731/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./731/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./731/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./731/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./731/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./731") = 0 mkdir("./732", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6546 attached , child_tidptr=0x555555c06690) = 6546 [pid 6546] chdir("./732") = 0 [pid 6546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6546] setpgid(0, 0) = 0 [pid 6546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6546] write(3, "1000", 4) = 4 [pid 6546] close(3) = 0 [pid 6546] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6546] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6546] memfd_create("syzkaller", 0) = 3 [pid 6546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6546] 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"..., 2097152) = 2097152 [pid 6546] munmap(0x7f320ee61000, 2097152) = 0 [pid 6546] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6546] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6546] close(3) = 0 [pid 6546] mkdir("./file1", 0777) = 0 [pid 6546] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6546] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6546] chdir("./file1") = 0 [pid 6546] ioctl(4, LOOP_CLR_FD) = 0 [pid 6546] close(4) = 0 [pid 6546] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6546] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6546] ftruncate(5, 33587199) = 0 [ 207.085490][ T6546] loop0: detected capacity change from 0 to 4096 [ 207.097653][ T6546] NILFS (loop0): invalid segment: Checksum error in segment payload [ 207.105755][ T6546] NILFS (loop0): trying rollback from an earlier position [ 207.116911][ T6546] NILFS (loop0): recovery complete [ 207.122944][ T6547] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6546] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6546] exit_group(0) = ? [pid 6546] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6546, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./732", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./732", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./732/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./732/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./732/binderfs") = 0 umount2("./732/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./732/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./732/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./732/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./732/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./732/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./732") = 0 mkdir("./733", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6548 ./strace-static-x86_64: Process 6548 attached [pid 6548] chdir("./733") = 0 [pid 6548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6548] setpgid(0, 0) = 0 [pid 6548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6548] write(3, "1000", 4) = 4 [pid 6548] close(3) = 0 [pid 6548] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6548] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6548] memfd_create("syzkaller", 0) = 3 [pid 6548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6548] 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"..., 2097152) = 2097152 [pid 6548] munmap(0x7f320ee61000, 2097152) = 0 [pid 6548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6548] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6548] close(3) = 0 [pid 6548] mkdir("./file1", 0777) = 0 [pid 6548] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6548] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6548] chdir("./file1") = 0 [pid 6548] ioctl(4, LOOP_CLR_FD) = 0 [pid 6548] close(4) = 0 [pid 6548] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6548] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6548] ftruncate(5, 33587199) = 0 [ 207.314052][ T6548] loop0: detected capacity change from 0 to 4096 [ 207.326926][ T6548] NILFS (loop0): invalid segment: Checksum error in segment payload [ 207.335253][ T6548] NILFS (loop0): trying rollback from an earlier position [ 207.347389][ T6548] NILFS (loop0): recovery complete [ 207.353226][ T6549] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6548] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6548] exit_group(0) = ? [pid 6548] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6548, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./733", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./733", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./733/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./733/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./733/binderfs") = 0 umount2("./733/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./733/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./733/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./733/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./733/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./733/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./733") = 0 mkdir("./734", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6550 ./strace-static-x86_64: Process 6550 attached [pid 6550] chdir("./734") = 0 [pid 6550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6550] setpgid(0, 0) = 0 [pid 6550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6550] write(3, "1000", 4) = 4 [pid 6550] close(3) = 0 [pid 6550] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6550] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6550] memfd_create("syzkaller", 0) = 3 [pid 6550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6550] 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"..., 2097152) = 2097152 [pid 6550] munmap(0x7f320ee61000, 2097152) = 0 [pid 6550] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6550] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6550] close(3) = 0 [pid 6550] mkdir("./file1", 0777) = 0 [pid 6550] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6550] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6550] chdir("./file1") = 0 [pid 6550] ioctl(4, LOOP_CLR_FD) = 0 [pid 6550] close(4) = 0 [pid 6550] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6550] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6550] ftruncate(5, 33587199) = 0 [ 207.544405][ T6550] loop0: detected capacity change from 0 to 4096 [ 207.557689][ T6550] NILFS (loop0): invalid segment: Checksum error in segment payload [ 207.565888][ T6550] NILFS (loop0): trying rollback from an earlier position [ 207.577116][ T6550] NILFS (loop0): recovery complete [ 207.582982][ T6551] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6550] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6550] exit_group(0) = ? [pid 6550] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6550, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./734", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./734", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./734/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./734/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./734/binderfs") = 0 umount2("./734/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./734/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./734/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./734/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./734/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./734/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./734") = 0 mkdir("./735", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6552 ./strace-static-x86_64: Process 6552 attached [pid 6552] chdir("./735") = 0 [pid 6552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6552] setpgid(0, 0) = 0 [pid 6552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6552] write(3, "1000", 4) = 4 [pid 6552] close(3) = 0 [pid 6552] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6552] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6552] memfd_create("syzkaller", 0) = 3 [pid 6552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6552] 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"..., 2097152) = 2097152 [pid 6552] munmap(0x7f320ee61000, 2097152) = 0 [pid 6552] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6552] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6552] close(3) = 0 [pid 6552] mkdir("./file1", 0777) = 0 [pid 6552] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6552] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6552] chdir("./file1") = 0 [pid 6552] ioctl(4, LOOP_CLR_FD) = 0 [pid 6552] close(4) = 0 [pid 6552] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6552] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6552] ftruncate(5, 33587199) = 0 [ 207.766023][ T6552] loop0: detected capacity change from 0 to 4096 [ 207.778571][ T6552] NILFS (loop0): invalid segment: Checksum error in segment payload [ 207.786635][ T6552] NILFS (loop0): trying rollback from an earlier position [ 207.798078][ T6552] NILFS (loop0): recovery complete [ 207.804042][ T6553] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6552] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6552] exit_group(0) = ? [pid 6552] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6552, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./735", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./735", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./735/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./735/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./735/binderfs") = 0 umount2("./735/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./735/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./735/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./735/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./735/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./735/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./735") = 0 mkdir("./736", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6554 ./strace-static-x86_64: Process 6554 attached [pid 6554] chdir("./736") = 0 [pid 6554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6554] setpgid(0, 0) = 0 [pid 6554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6554] write(3, "1000", 4) = 4 [pid 6554] close(3) = 0 [pid 6554] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6554] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6554] memfd_create("syzkaller", 0) = 3 [pid 6554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6554] 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"..., 2097152) = 2097152 [pid 6554] munmap(0x7f320ee61000, 2097152) = 0 [pid 6554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6554] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6554] close(3) = 0 [pid 6554] mkdir("./file1", 0777) = 0 [pid 6554] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6554] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6554] chdir("./file1") = 0 [pid 6554] ioctl(4, LOOP_CLR_FD) = 0 [pid 6554] close(4) = 0 [pid 6554] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6554] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6554] ftruncate(5, 33587199) = 0 [ 207.974575][ T6554] loop0: detected capacity change from 0 to 4096 [ 207.986412][ T6554] NILFS (loop0): invalid segment: Checksum error in segment payload [ 207.994549][ T6554] NILFS (loop0): trying rollback from an earlier position [ 208.006390][ T6554] NILFS (loop0): recovery complete [ 208.012290][ T6555] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6554] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6554] exit_group(0) = ? [pid 6554] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6554, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./736", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./736", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./736/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./736/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./736/binderfs") = 0 umount2("./736/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./736/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./736/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./736/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./736/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./736/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./736") = 0 mkdir("./737", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6556 ./strace-static-x86_64: Process 6556 attached [pid 6556] chdir("./737") = 0 [pid 6556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6556] setpgid(0, 0) = 0 [pid 6556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6556] write(3, "1000", 4) = 4 [pid 6556] close(3) = 0 [pid 6556] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6556] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6556] memfd_create("syzkaller", 0) = 3 [pid 6556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6556] 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"..., 2097152) = 2097152 [pid 6556] munmap(0x7f320ee61000, 2097152) = 0 [pid 6556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6556] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6556] close(3) = 0 [pid 6556] mkdir("./file1", 0777) = 0 [pid 6556] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6556] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6556] chdir("./file1") = 0 [pid 6556] ioctl(4, LOOP_CLR_FD) = 0 [pid 6556] close(4) = 0 [pid 6556] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6556] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6556] ftruncate(5, 33587199) = 0 [ 208.204633][ T6556] loop0: detected capacity change from 0 to 4096 [ 208.217040][ T6556] NILFS (loop0): invalid segment: Checksum error in segment payload [ 208.225154][ T6556] NILFS (loop0): trying rollback from an earlier position [ 208.236415][ T6556] NILFS (loop0): recovery complete [ 208.242123][ T6557] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6556] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6556] exit_group(0) = ? [pid 6556] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6556, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./737", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./737", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./737/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./737/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./737/binderfs") = 0 umount2("./737/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./737/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./737/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./737/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./737/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./737/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./737") = 0 mkdir("./738", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6558 attached , child_tidptr=0x555555c06690) = 6558 [pid 6558] chdir("./738") = 0 [pid 6558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6558] setpgid(0, 0) = 0 [pid 6558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6558] write(3, "1000", 4) = 4 [pid 6558] close(3) = 0 [pid 6558] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6558] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6558] memfd_create("syzkaller", 0) = 3 [pid 6558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6558] 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"..., 2097152) = 2097152 [pid 6558] munmap(0x7f320ee61000, 2097152) = 0 [pid 6558] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6558] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6558] close(3) = 0 [pid 6558] mkdir("./file1", 0777) = 0 [pid 6558] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6558] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6558] chdir("./file1") = 0 [pid 6558] ioctl(4, LOOP_CLR_FD) = 0 [pid 6558] close(4) = 0 [pid 6558] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6558] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6558] ftruncate(5, 33587199) = 0 [ 208.439712][ T6558] loop0: detected capacity change from 0 to 4096 [ 208.452331][ T6558] NILFS (loop0): invalid segment: Checksum error in segment payload [ 208.460598][ T6558] NILFS (loop0): trying rollback from an earlier position [ 208.471848][ T6558] NILFS (loop0): recovery complete [ 208.477544][ T6559] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6558] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6558] exit_group(0) = ? [pid 6558] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6558, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./738", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./738", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./738/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./738/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./738/binderfs") = 0 umount2("./738/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./738/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./738/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./738/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./738/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./738/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./738") = 0 mkdir("./739", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6560 ./strace-static-x86_64: Process 6560 attached [pid 6560] chdir("./739") = 0 [pid 6560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6560] setpgid(0, 0) = 0 [pid 6560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6560] write(3, "1000", 4) = 4 [pid 6560] close(3) = 0 [pid 6560] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6560] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6560] memfd_create("syzkaller", 0) = 3 [pid 6560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6560] 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"..., 2097152) = 2097152 [pid 6560] munmap(0x7f320ee61000, 2097152) = 0 [pid 6560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6560] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6560] close(3) = 0 [pid 6560] mkdir("./file1", 0777) = 0 [pid 6560] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6560] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6560] chdir("./file1") = 0 [pid 6560] ioctl(4, LOOP_CLR_FD) = 0 [pid 6560] close(4) = 0 [pid 6560] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6560] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6560] ftruncate(5, 33587199) = 0 [ 208.656540][ T6560] loop0: detected capacity change from 0 to 4096 [ 208.668712][ T6560] NILFS (loop0): invalid segment: Checksum error in segment payload [ 208.676946][ T6560] NILFS (loop0): trying rollback from an earlier position [ 208.688478][ T6560] NILFS (loop0): recovery complete [ 208.694162][ T6561] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6560] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6560] exit_group(0) = ? [pid 6560] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6560, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./739", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./739", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./739/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./739/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./739/binderfs") = 0 umount2("./739/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./739/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./739/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./739/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./739/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./739/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./739") = 0 mkdir("./740", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6562 ./strace-static-x86_64: Process 6562 attached [pid 6562] chdir("./740") = 0 [pid 6562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6562] setpgid(0, 0) = 0 [pid 6562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6562] write(3, "1000", 4) = 4 [pid 6562] close(3) = 0 [pid 6562] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6562] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6562] memfd_create("syzkaller", 0) = 3 [pid 6562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6562] 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"..., 2097152) = 2097152 [pid 6562] munmap(0x7f320ee61000, 2097152) = 0 [pid 6562] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6562] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6562] close(3) = 0 [pid 6562] mkdir("./file1", 0777) = 0 [pid 6562] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6562] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6562] chdir("./file1") = 0 [pid 6562] ioctl(4, LOOP_CLR_FD) = 0 [pid 6562] close(4) = 0 [pid 6562] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6562] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6562] ftruncate(5, 33587199) = 0 [ 208.871799][ T6562] loop0: detected capacity change from 0 to 4096 [ 208.883760][ T6562] NILFS (loop0): invalid segment: Checksum error in segment payload [ 208.891940][ T6562] NILFS (loop0): trying rollback from an earlier position [ 208.903868][ T6562] NILFS (loop0): recovery complete [ 208.909558][ T6563] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6562] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6562] exit_group(0) = ? [pid 6562] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6562, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./740", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./740", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./740/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./740/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./740/binderfs") = 0 umount2("./740/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./740/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./740/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./740/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./740/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./740/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./740") = 0 mkdir("./741", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6564 attached [pid 6564] chdir("./741") = 0 [pid 6564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6564] setpgid(0, 0) = 0 [pid 6564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6564 [pid 6564] <... openat resumed>) = 3 [pid 6564] write(3, "1000", 4) = 4 [pid 6564] close(3) = 0 [pid 6564] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6564] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6564] memfd_create("syzkaller", 0) = 3 [pid 6564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6564] 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"..., 2097152) = 2097152 [pid 6564] munmap(0x7f320ee61000, 2097152) = 0 [pid 6564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6564] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6564] close(3) = 0 [pid 6564] mkdir("./file1", 0777) = 0 [pid 6564] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6564] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6564] chdir("./file1") = 0 [pid 6564] ioctl(4, LOOP_CLR_FD) = 0 [pid 6564] close(4) = 0 [pid 6564] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6564] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6564] ftruncate(5, 33587199) = 0 [ 209.099672][ T6564] loop0: detected capacity change from 0 to 4096 [ 209.111567][ T6564] NILFS (loop0): invalid segment: Checksum error in segment payload [ 209.119640][ T6564] NILFS (loop0): trying rollback from an earlier position [ 209.131258][ T6564] NILFS (loop0): recovery complete [ 209.136916][ T6565] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6564] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6564] exit_group(0) = ? [pid 6564] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6564, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./741", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./741", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./741/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./741/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./741/binderfs") = 0 umount2("./741/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./741/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./741/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./741/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./741/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./741/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./741") = 0 mkdir("./742", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6566 ./strace-static-x86_64: Process 6566 attached [pid 6566] chdir("./742") = 0 [pid 6566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6566] setpgid(0, 0) = 0 [pid 6566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6566] write(3, "1000", 4) = 4 [pid 6566] close(3) = 0 [pid 6566] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6566] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6566] memfd_create("syzkaller", 0) = 3 [pid 6566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6566] 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"..., 2097152) = 2097152 [pid 6566] munmap(0x7f320ee61000, 2097152) = 0 [pid 6566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6566] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6566] close(3) = 0 [pid 6566] mkdir("./file1", 0777) = 0 [pid 6566] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6566] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6566] chdir("./file1") = 0 [pid 6566] ioctl(4, LOOP_CLR_FD) = 0 [pid 6566] close(4) = 0 [pid 6566] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6566] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6566] ftruncate(5, 33587199) = 0 [ 209.324723][ T6566] loop0: detected capacity change from 0 to 4096 [ 209.338743][ T6566] NILFS (loop0): invalid segment: Checksum error in segment payload [ 209.346802][ T6566] NILFS (loop0): trying rollback from an earlier position [ 209.357931][ T6566] NILFS (loop0): recovery complete [ 209.363628][ T6567] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6566] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6566] exit_group(0) = ? [pid 6566] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6566, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./742", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./742", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./742/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./742/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./742/binderfs") = 0 umount2("./742/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./742/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./742/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./742/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./742/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./742/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./742") = 0 mkdir("./743", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6568 attached , child_tidptr=0x555555c06690) = 6568 [pid 6568] chdir("./743") = 0 [pid 6568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6568] setpgid(0, 0) = 0 [pid 6568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6568] write(3, "1000", 4) = 4 [pid 6568] close(3) = 0 [pid 6568] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6568] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6568] memfd_create("syzkaller", 0) = 3 [pid 6568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6568] 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"..., 2097152) = 2097152 [pid 6568] munmap(0x7f320ee61000, 2097152) = 0 [pid 6568] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6568] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6568] close(3) = 0 [pid 6568] mkdir("./file1", 0777) = 0 [pid 6568] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6568] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6568] chdir("./file1") = 0 [pid 6568] ioctl(4, LOOP_CLR_FD) = 0 [pid 6568] close(4) = 0 [pid 6568] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6568] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6568] ftruncate(5, 33587199) = 0 [ 209.558287][ T6568] loop0: detected capacity change from 0 to 4096 [ 209.570719][ T6568] NILFS (loop0): invalid segment: Checksum error in segment payload [ 209.578785][ T6568] NILFS (loop0): trying rollback from an earlier position [ 209.589875][ T6568] NILFS (loop0): recovery complete [ 209.595605][ T6569] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6568] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6568] exit_group(0) = ? [pid 6568] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6568, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./743", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./743", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./743/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./743/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./743/binderfs") = 0 umount2("./743/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./743/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./743/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./743/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./743/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./743/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./743") = 0 mkdir("./744", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6570 ./strace-static-x86_64: Process 6570 attached [pid 6570] chdir("./744") = 0 [pid 6570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6570] setpgid(0, 0) = 0 [pid 6570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6570] write(3, "1000", 4) = 4 [pid 6570] close(3) = 0 [pid 6570] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6570] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6570] memfd_create("syzkaller", 0) = 3 [pid 6570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6570] 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"..., 2097152) = 2097152 [pid 6570] munmap(0x7f320ee61000, 2097152) = 0 [pid 6570] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6570] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6570] close(3) = 0 [pid 6570] mkdir("./file1", 0777) = 0 [pid 6570] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6570] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6570] chdir("./file1") = 0 [pid 6570] ioctl(4, LOOP_CLR_FD) = 0 [pid 6570] close(4) = 0 [pid 6570] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6570] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6570] ftruncate(5, 33587199) = 0 [ 209.785239][ T6570] loop0: detected capacity change from 0 to 4096 [ 209.798261][ T6570] NILFS (loop0): invalid segment: Checksum error in segment payload [ 209.806592][ T6570] NILFS (loop0): trying rollback from an earlier position [ 209.818299][ T6570] NILFS (loop0): recovery complete [ 209.824096][ T6571] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6570] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6570] exit_group(0) = ? [pid 6570] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6570, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./744", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./744", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./744/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./744/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./744/binderfs") = 0 umount2("./744/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./744/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./744/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./744/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./744/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./744/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./744") = 0 mkdir("./745", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6572 ./strace-static-x86_64: Process 6572 attached [pid 6572] chdir("./745") = 0 [pid 6572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6572] setpgid(0, 0) = 0 [pid 6572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6572] write(3, "1000", 4) = 4 [pid 6572] close(3) = 0 [pid 6572] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6572] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6572] memfd_create("syzkaller", 0) = 3 [pid 6572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6572] 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"..., 2097152) = 2097152 [pid 6572] munmap(0x7f320ee61000, 2097152) = 0 [pid 6572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6572] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6572] close(3) = 0 [pid 6572] mkdir("./file1", 0777) = 0 [pid 6572] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6572] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6572] chdir("./file1") = 0 [pid 6572] ioctl(4, LOOP_CLR_FD) = 0 [pid 6572] close(4) = 0 [pid 6572] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6572] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6572] ftruncate(5, 33587199) = 0 [ 210.015725][ T6572] loop0: detected capacity change from 0 to 4096 [ 210.027325][ T6572] NILFS (loop0): invalid segment: Checksum error in segment payload [ 210.035446][ T6572] NILFS (loop0): trying rollback from an earlier position [ 210.046624][ T6572] NILFS (loop0): recovery complete [ 210.052553][ T6573] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6572] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6572] exit_group(0) = ? [pid 6572] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6572, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./745", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./745", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./745/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./745/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./745/binderfs") = 0 umount2("./745/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./745/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./745/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./745/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./745/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./745/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./745") = 0 mkdir("./746", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6575 attached , child_tidptr=0x555555c06690) = 6575 [pid 6575] chdir("./746") = 0 [pid 6575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6575] setpgid(0, 0) = 0 [pid 6575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6575] write(3, "1000", 4) = 4 [pid 6575] close(3) = 0 [pid 6575] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6575] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6575] memfd_create("syzkaller", 0) = 3 [pid 6575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6575] 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"..., 2097152) = 2097152 [pid 6575] munmap(0x7f320ee61000, 2097152) = 0 [pid 6575] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6575] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6575] close(3) = 0 [pid 6575] mkdir("./file1", 0777) = 0 [pid 6575] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6575] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6575] chdir("./file1") = 0 [pid 6575] ioctl(4, LOOP_CLR_FD) = 0 [pid 6575] close(4) = 0 [pid 6575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6575] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6575] ftruncate(5, 33587199) = 0 [ 210.257746][ T6575] loop0: detected capacity change from 0 to 4096 [ 210.270923][ T6575] NILFS (loop0): invalid segment: Checksum error in segment payload [ 210.278994][ T6575] NILFS (loop0): trying rollback from an earlier position [ 210.290358][ T6575] NILFS (loop0): recovery complete [ 210.296021][ T6576] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6575] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6575] exit_group(0) = ? [pid 6575] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6575, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./746", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./746", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./746/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./746/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./746/binderfs") = 0 umount2("./746/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./746/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./746/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./746/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./746/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./746/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./746") = 0 mkdir("./747", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6577 ./strace-static-x86_64: Process 6577 attached [pid 6577] chdir("./747") = 0 [pid 6577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6577] setpgid(0, 0) = 0 [pid 6577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6577] write(3, "1000", 4) = 4 [pid 6577] close(3) = 0 [pid 6577] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6577] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6577] memfd_create("syzkaller", 0) = 3 [pid 6577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6577] 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"..., 2097152) = 2097152 [pid 6577] munmap(0x7f320ee61000, 2097152) = 0 [pid 6577] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6577] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6577] close(3) = 0 [pid 6577] mkdir("./file1", 0777) = 0 [pid 6577] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6577] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6577] chdir("./file1") = 0 [pid 6577] ioctl(4, LOOP_CLR_FD) = 0 [pid 6577] close(4) = 0 [pid 6577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6577] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6577] ftruncate(5, 33587199) = 0 [ 210.488666][ T6577] loop0: detected capacity change from 0 to 4096 [ 210.500872][ T6577] NILFS (loop0): invalid segment: Checksum error in segment payload [ 210.508873][ T6577] NILFS (loop0): trying rollback from an earlier position [ 210.520336][ T6577] NILFS (loop0): recovery complete [ 210.525978][ T6578] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6577] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6577] exit_group(0) = ? [pid 6577] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6577, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./747", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./747", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./747/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./747/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./747/binderfs") = 0 umount2("./747/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./747/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./747/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./747/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./747/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./747/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./747") = 0 mkdir("./748", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6579 ./strace-static-x86_64: Process 6579 attached [pid 6579] chdir("./748") = 0 [pid 6579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6579] setpgid(0, 0) = 0 [pid 6579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6579] write(3, "1000", 4) = 4 [pid 6579] close(3) = 0 [pid 6579] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6579] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6579] memfd_create("syzkaller", 0) = 3 [pid 6579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6579] 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"..., 2097152) = 2097152 [pid 6579] munmap(0x7f320ee61000, 2097152) = 0 [pid 6579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6579] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6579] close(3) = 0 [pid 6579] mkdir("./file1", 0777) = 0 [pid 6579] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6579] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6579] chdir("./file1") = 0 [pid 6579] ioctl(4, LOOP_CLR_FD) = 0 [pid 6579] close(4) = 0 [pid 6579] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6579] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6579] ftruncate(5, 33587199) = 0 [ 210.702729][ T6579] loop0: detected capacity change from 0 to 4096 [ 210.715153][ T6579] NILFS (loop0): invalid segment: Checksum error in segment payload [ 210.723342][ T6579] NILFS (loop0): trying rollback from an earlier position [ 210.734411][ T6579] NILFS (loop0): recovery complete [ 210.740080][ T6580] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6579] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6579] exit_group(0) = ? [pid 6579] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6579, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./748", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./748", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./748/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./748/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./748/binderfs") = 0 umount2("./748/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./748/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./748/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./748/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./748/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./748/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./748") = 0 mkdir("./749", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6581 attached [pid 6581] chdir("./749") = 0 [pid 6581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6581] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6581 [pid 6581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6581] write(3, "1000", 4) = 4 [pid 6581] close(3) = 0 [pid 6581] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6581] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6581] memfd_create("syzkaller", 0) = 3 [pid 6581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6581] 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"..., 2097152) = 2097152 [pid 6581] munmap(0x7f320ee61000, 2097152) = 0 [pid 6581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6581] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6581] close(3) = 0 [pid 6581] mkdir("./file1", 0777) = 0 [pid 6581] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6581] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6581] chdir("./file1") = 0 [pid 6581] ioctl(4, LOOP_CLR_FD) = 0 [pid 6581] close(4) = 0 [pid 6581] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6581] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6581] ftruncate(5, 33587199) = 0 [ 210.932808][ T6581] loop0: detected capacity change from 0 to 4096 [ 210.944366][ T6581] NILFS (loop0): invalid segment: Checksum error in segment payload [ 210.952405][ T6581] NILFS (loop0): trying rollback from an earlier position [ 210.963306][ T6581] NILFS (loop0): recovery complete [ 210.969098][ T6582] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6581] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6581] exit_group(0) = ? [pid 6581] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6581, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./749", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./749", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./749/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./749/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./749/binderfs") = 0 umount2("./749/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./749/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./749/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./749/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./749/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./749/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./749") = 0 mkdir("./750", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6583 attached [pid 6583] chdir("./750") = 0 [pid 6583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6583] setpgid(0, 0) = 0 [pid 6583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6583] write(3, "1000", 4) = 4 [pid 6583] close(3) = 0 [pid 6583] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6583] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6583] memfd_create("syzkaller", 0) = 3 [pid 6583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6583 [pid 6583] 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"..., 2097152) = 2097152 [pid 6583] munmap(0x7f320ee61000, 2097152) = 0 [pid 6583] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6583] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6583] close(3) = 0 [pid 6583] mkdir("./file1", 0777) = 0 [pid 6583] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6583] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6583] chdir("./file1") = 0 [pid 6583] ioctl(4, LOOP_CLR_FD) = 0 [pid 6583] close(4) = 0 [pid 6583] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6583] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6583] ftruncate(5, 33587199) = 0 [ 211.162846][ T6583] loop0: detected capacity change from 0 to 4096 [ 211.175160][ T6583] NILFS (loop0): invalid segment: Checksum error in segment payload [ 211.183356][ T6583] NILFS (loop0): trying rollback from an earlier position [ 211.194870][ T6583] NILFS (loop0): recovery complete [ 211.200759][ T6584] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6583] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6583] exit_group(0) = ? [pid 6583] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6583, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./750", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./750", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./750/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./750/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./750/binderfs") = 0 umount2("./750/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./750/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./750/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./750/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./750/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./750/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./750") = 0 mkdir("./751", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6586 ./strace-static-x86_64: Process 6586 attached [pid 6586] chdir("./751") = 0 [pid 6586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6586] setpgid(0, 0) = 0 [pid 6586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6586] write(3, "1000", 4) = 4 [pid 6586] close(3) = 0 [pid 6586] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6586] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6586] memfd_create("syzkaller", 0) = 3 [pid 6586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6586] 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"..., 2097152) = 2097152 [pid 6586] munmap(0x7f320ee61000, 2097152) = 0 [pid 6586] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6586] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6586] close(3) = 0 [pid 6586] mkdir("./file1", 0777) = 0 [pid 6586] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6586] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6586] chdir("./file1") = 0 [pid 6586] ioctl(4, LOOP_CLR_FD) = 0 [pid 6586] close(4) = 0 [pid 6586] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6586] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6586] ftruncate(5, 33587199) = 0 [ 211.396810][ T6586] loop0: detected capacity change from 0 to 4096 [ 211.408610][ T6586] NILFS (loop0): invalid segment: Checksum error in segment payload [ 211.416690][ T6586] NILFS (loop0): trying rollback from an earlier position [ 211.427946][ T6586] NILFS (loop0): recovery complete [ 211.433747][ T6587] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6586] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6586] exit_group(0) = ? [pid 6586] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6586, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./751", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./751", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./751/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./751/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./751/binderfs") = 0 umount2("./751/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./751/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./751/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./751/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./751/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./751/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./751") = 0 mkdir("./752", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6589 ./strace-static-x86_64: Process 6589 attached [pid 6589] chdir("./752") = 0 [pid 6589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6589] setpgid(0, 0) = 0 [pid 6589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6589] write(3, "1000", 4) = 4 [pid 6589] close(3) = 0 [pid 6589] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6589] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6589] memfd_create("syzkaller", 0) = 3 [pid 6589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6589] 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"..., 2097152) = 2097152 [pid 6589] munmap(0x7f320ee61000, 2097152) = 0 [pid 6589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6589] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6589] close(3) = 0 [pid 6589] mkdir("./file1", 0777) = 0 [pid 6589] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6589] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6589] chdir("./file1") = 0 [pid 6589] ioctl(4, LOOP_CLR_FD) = 0 [pid 6589] close(4) = 0 [pid 6589] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6589] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6589] ftruncate(5, 33587199) = 0 [ 211.619404][ T6589] loop0: detected capacity change from 0 to 4096 [ 211.631414][ T6589] NILFS (loop0): invalid segment: Checksum error in segment payload [ 211.639447][ T6589] NILFS (loop0): trying rollback from an earlier position [ 211.651205][ T6589] NILFS (loop0): recovery complete [ 211.656792][ T6590] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6589] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6589] exit_group(0) = ? [pid 6589] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6589, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./752", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./752", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./752/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./752/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./752/binderfs") = 0 umount2("./752/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./752/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./752/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./752/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./752/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./752/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./752") = 0 mkdir("./753", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6592 attached , child_tidptr=0x555555c06690) = 6592 [pid 6592] chdir("./753") = 0 [pid 6592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6592] setpgid(0, 0) = 0 [pid 6592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6592] write(3, "1000", 4) = 4 [pid 6592] close(3) = 0 [pid 6592] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6592] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6592] memfd_create("syzkaller", 0) = 3 [pid 6592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6592] 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"..., 2097152) = 2097152 [pid 6592] munmap(0x7f320ee61000, 2097152) = 0 [pid 6592] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6592] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6592] close(3) = 0 [pid 6592] mkdir("./file1", 0777) = 0 [pid 6592] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6592] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6592] chdir("./file1") = 0 [pid 6592] ioctl(4, LOOP_CLR_FD) = 0 [pid 6592] close(4) = 0 [pid 6592] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6592] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6592] ftruncate(5, 33587199) = 0 [ 211.849768][ T6592] loop0: detected capacity change from 0 to 4096 [ 211.860959][ T6592] NILFS (loop0): invalid segment: Checksum error in segment payload [ 211.868951][ T6592] NILFS (loop0): trying rollback from an earlier position [ 211.879334][ T6592] NILFS (loop0): recovery complete [ 211.885734][ T6594] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6592] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6592] exit_group(0) = ? [pid 6592] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6592, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./753", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./753", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./753/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./753/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./753/binderfs") = 0 umount2("./753/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./753/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./753/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./753/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./753/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./753/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./753") = 0 mkdir("./754", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6595 ./strace-static-x86_64: Process 6595 attached [pid 6595] chdir("./754") = 0 [pid 6595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6595] setpgid(0, 0) = 0 [pid 6595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6595] write(3, "1000", 4) = 4 [pid 6595] close(3) = 0 [pid 6595] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6595] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6595] memfd_create("syzkaller", 0) = 3 [pid 6595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6595] 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"..., 2097152) = 2097152 [pid 6595] munmap(0x7f320ee61000, 2097152) = 0 [pid 6595] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6595] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6595] close(3) = 0 [pid 6595] mkdir("./file1", 0777) = 0 [pid 6595] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6595] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6595] chdir("./file1") = 0 [pid 6595] ioctl(4, LOOP_CLR_FD) = 0 [pid 6595] close(4) = 0 [pid 6595] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6595] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6595] ftruncate(5, 33587199) = 0 [ 212.077118][ T6595] loop0: detected capacity change from 0 to 4096 [ 212.089359][ T6595] NILFS (loop0): invalid segment: Checksum error in segment payload [ 212.097569][ T6595] NILFS (loop0): trying rollback from an earlier position [ 212.108987][ T6595] NILFS (loop0): recovery complete [ 212.114917][ T6596] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6595] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6595] exit_group(0) = ? [pid 6595] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6595, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./754", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./754", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./754/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./754/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./754/binderfs") = 0 umount2("./754/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./754/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./754/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./754/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./754/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./754/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./754") = 0 mkdir("./755", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6597 ./strace-static-x86_64: Process 6597 attached [pid 6597] chdir("./755") = 0 [pid 6597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6597] setpgid(0, 0) = 0 [pid 6597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6597] write(3, "1000", 4) = 4 [pid 6597] close(3) = 0 [pid 6597] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6597] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6597] memfd_create("syzkaller", 0) = 3 [pid 6597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6597] 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"..., 2097152) = 2097152 [pid 6597] munmap(0x7f320ee61000, 2097152) = 0 [pid 6597] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6597] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6597] close(3) = 0 [pid 6597] mkdir("./file1", 0777) = 0 [pid 6597] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6597] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6597] chdir("./file1") = 0 [pid 6597] ioctl(4, LOOP_CLR_FD) = 0 [pid 6597] close(4) = 0 [pid 6597] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6597] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6597] ftruncate(5, 33587199) = 0 [ 212.313071][ T6597] loop0: detected capacity change from 0 to 4096 [ 212.325435][ T6597] NILFS (loop0): invalid segment: Checksum error in segment payload [ 212.333629][ T6597] NILFS (loop0): trying rollback from an earlier position [ 212.345750][ T6597] NILFS (loop0): recovery complete [ 212.352024][ T6598] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6597] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6597] exit_group(0) = ? [pid 6597] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6597, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./755", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./755", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./755/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./755/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./755/binderfs") = 0 umount2("./755/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./755/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./755/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./755/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./755/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./755/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./755") = 0 mkdir("./756", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6599 attached [pid 6599] chdir("./756") = 0 [pid 6599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6599] setpgid(0, 0) = 0 [pid 6599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6599 [pid 6599] write(3, "1000", 4) = 4 [pid 6599] close(3) = 0 [pid 6599] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6599] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6599] memfd_create("syzkaller", 0) = 3 [pid 6599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6599] 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"..., 2097152) = 2097152 [pid 6599] munmap(0x7f320ee61000, 2097152) = 0 [pid 6599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6599] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6599] close(3) = 0 [pid 6599] mkdir("./file1", 0777) = 0 [pid 6599] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6599] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6599] chdir("./file1") = 0 [pid 6599] ioctl(4, LOOP_CLR_FD) = 0 [pid 6599] close(4) = 0 [pid 6599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6599] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6599] ftruncate(5, 33587199) = 0 [ 212.546627][ T6599] loop0: detected capacity change from 0 to 4096 [ 212.559392][ T6599] NILFS (loop0): invalid segment: Checksum error in segment payload [ 212.567897][ T6599] NILFS (loop0): trying rollback from an earlier position [ 212.579058][ T6599] NILFS (loop0): recovery complete [ 212.584827][ T6600] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6599] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6599] exit_group(0) = ? [pid 6599] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6599, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./756", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./756", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./756/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./756/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./756/binderfs") = 0 umount2("./756/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./756/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./756/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./756/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./756/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./756/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./756") = 0 mkdir("./757", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6601 ./strace-static-x86_64: Process 6601 attached [pid 6601] chdir("./757") = 0 [pid 6601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6601] setpgid(0, 0) = 0 [pid 6601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6601] write(3, "1000", 4) = 4 [pid 6601] close(3) = 0 [pid 6601] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6601] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6601] memfd_create("syzkaller", 0) = 3 [pid 6601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6601] 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"..., 2097152) = 2097152 [pid 6601] munmap(0x7f320ee61000, 2097152) = 0 [pid 6601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6601] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6601] close(3) = 0 [pid 6601] mkdir("./file1", 0777) = 0 [pid 6601] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6601] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6601] chdir("./file1") = 0 [pid 6601] ioctl(4, LOOP_CLR_FD) = 0 [pid 6601] close(4) = 0 [pid 6601] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6601] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6601] ftruncate(5, 33587199) = 0 [ 212.768144][ T6601] loop0: detected capacity change from 0 to 4096 [ 212.780711][ T6601] NILFS (loop0): invalid segment: Checksum error in segment payload [ 212.788738][ T6601] NILFS (loop0): trying rollback from an earlier position [ 212.799905][ T6601] NILFS (loop0): recovery complete [ 212.805763][ T6602] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6601] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6601] exit_group(0) = ? [pid 6601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6601, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./757", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./757", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./757/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./757/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./757/binderfs") = 0 umount2("./757/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./757/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./757/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./757/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./757/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./757/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./757") = 0 mkdir("./758", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6603 ./strace-static-x86_64: Process 6603 attached [pid 6603] chdir("./758") = 0 [pid 6603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6603] setpgid(0, 0) = 0 [pid 6603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6603] write(3, "1000", 4) = 4 [pid 6603] close(3) = 0 [pid 6603] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6603] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6603] memfd_create("syzkaller", 0) = 3 [pid 6603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6603] 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"..., 2097152) = 2097152 [pid 6603] munmap(0x7f320ee61000, 2097152) = 0 [pid 6603] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6603] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6603] close(3) = 0 [pid 6603] mkdir("./file1", 0777) = 0 [pid 6603] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6603] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6603] chdir("./file1") = 0 [pid 6603] ioctl(4, LOOP_CLR_FD) = 0 [pid 6603] close(4) = 0 [pid 6603] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6603] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6603] ftruncate(5, 33587199) = 0 [ 212.979632][ T6603] loop0: detected capacity change from 0 to 4096 [ 212.992356][ T6603] NILFS (loop0): invalid segment: Checksum error in segment payload [ 213.000509][ T6603] NILFS (loop0): trying rollback from an earlier position [ 213.012058][ T6603] NILFS (loop0): recovery complete [ 213.017744][ T6604] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6603] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6603] exit_group(0) = ? [pid 6603] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6603, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./758", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./758", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./758/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./758/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./758/binderfs") = 0 umount2("./758/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./758/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./758/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./758/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./758/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./758/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./758") = 0 mkdir("./759", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6605 attached , child_tidptr=0x555555c06690) = 6605 [pid 6605] chdir("./759") = 0 [pid 6605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6605] setpgid(0, 0) = 0 [pid 6605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6605] write(3, "1000", 4) = 4 [pid 6605] close(3) = 0 [pid 6605] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6605] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6605] memfd_create("syzkaller", 0) = 3 [pid 6605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6605] 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"..., 2097152) = 2097152 [pid 6605] munmap(0x7f320ee61000, 2097152) = 0 [pid 6605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6605] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6605] close(3) = 0 [pid 6605] mkdir("./file1", 0777) = 0 [pid 6605] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6605] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6605] chdir("./file1") = 0 [pid 6605] ioctl(4, LOOP_CLR_FD) = 0 [pid 6605] close(4) = 0 [pid 6605] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6605] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6605] ftruncate(5, 33587199) = 0 [ 213.207914][ T6605] loop0: detected capacity change from 0 to 4096 [ 213.219810][ T6605] NILFS (loop0): invalid segment: Checksum error in segment payload [ 213.228048][ T6605] NILFS (loop0): trying rollback from an earlier position [ 213.239213][ T6605] NILFS (loop0): recovery complete [ 213.245030][ T6606] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6605] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6605] exit_group(0) = ? [pid 6605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6605, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./759", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./759", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./759/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./759/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./759/binderfs") = 0 umount2("./759/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./759/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./759/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./759/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./759/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./759/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./759") = 0 mkdir("./760", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6608 attached [pid 6608] chdir("./760") = 0 [pid 6608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6608] setpgid(0, 0) = 0 [pid 6608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6608 [pid 6608] <... openat resumed>) = 3 [pid 6608] write(3, "1000", 4) = 4 [pid 6608] close(3) = 0 [pid 6608] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6608] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6608] memfd_create("syzkaller", 0) = 3 [pid 6608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6608] 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"..., 2097152) = 2097152 [pid 6608] munmap(0x7f320ee61000, 2097152) = 0 [pid 6608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6608] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6608] close(3) = 0 [pid 6608] mkdir("./file1", 0777) = 0 [pid 6608] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6608] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6608] chdir("./file1") = 0 [pid 6608] ioctl(4, LOOP_CLR_FD) = 0 [pid 6608] close(4) = 0 [pid 6608] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6608] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6608] ftruncate(5, 33587199) = 0 [ 213.435760][ T6608] loop0: detected capacity change from 0 to 4096 [ 213.448098][ T6608] NILFS (loop0): invalid segment: Checksum error in segment payload [ 213.456150][ T6608] NILFS (loop0): trying rollback from an earlier position [ 213.467834][ T6608] NILFS (loop0): recovery complete [ 213.473730][ T6609] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6608] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6608] exit_group(0) = ? [pid 6608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6608, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./760", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./760", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./760/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./760/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./760/binderfs") = 0 umount2("./760/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./760/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./760/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./760/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./760/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./760/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./760") = 0 mkdir("./761", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6610 ./strace-static-x86_64: Process 6610 attached [pid 6610] chdir("./761") = 0 [pid 6610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6610] setpgid(0, 0) = 0 [pid 6610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6610] write(3, "1000", 4) = 4 [pid 6610] close(3) = 0 [pid 6610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6610] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6610] memfd_create("syzkaller", 0) = 3 [pid 6610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6610] 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"..., 2097152) = 2097152 [pid 6610] munmap(0x7f320ee61000, 2097152) = 0 [pid 6610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6610] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6610] close(3) = 0 [pid 6610] mkdir("./file1", 0777) = 0 [pid 6610] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6610] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6610] chdir("./file1") = 0 [pid 6610] ioctl(4, LOOP_CLR_FD) = 0 [pid 6610] close(4) = 0 [pid 6610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6610] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6610] ftruncate(5, 33587199) = 0 [ 213.663695][ T6610] loop0: detected capacity change from 0 to 4096 [ 213.676227][ T6610] NILFS (loop0): invalid segment: Checksum error in segment payload [ 213.684303][ T6610] NILFS (loop0): trying rollback from an earlier position [ 213.695508][ T6610] NILFS (loop0): recovery complete [ 213.701407][ T6611] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6610] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6610] exit_group(0) = ? [pid 6610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6610, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./761", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./761", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./761/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./761/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./761/binderfs") = 0 umount2("./761/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./761/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./761/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./761/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./761/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./761/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./761") = 0 mkdir("./762", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6612 attached , child_tidptr=0x555555c06690) = 6612 [pid 6612] chdir("./762") = 0 [pid 6612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6612] setpgid(0, 0) = 0 [pid 6612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6612] write(3, "1000", 4) = 4 [pid 6612] close(3) = 0 [pid 6612] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6612] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6612] memfd_create("syzkaller", 0) = 3 [pid 6612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6612] 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"..., 2097152) = 2097152 [pid 6612] munmap(0x7f320ee61000, 2097152) = 0 [pid 6612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6612] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6612] close(3) = 0 [pid 6612] mkdir("./file1", 0777) = 0 [pid 6612] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6612] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6612] chdir("./file1") = 0 [pid 6612] ioctl(4, LOOP_CLR_FD) = 0 [pid 6612] close(4) = 0 [pid 6612] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6612] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6612] ftruncate(5, 33587199) = 0 [ 213.885515][ T6612] loop0: detected capacity change from 0 to 4096 [ 213.899029][ T6612] NILFS (loop0): invalid segment: Checksum error in segment payload [ 213.907272][ T6612] NILFS (loop0): trying rollback from an earlier position [ 213.919102][ T6612] NILFS (loop0): recovery complete [ 213.924829][ T6613] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6612] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6612] exit_group(0) = ? [pid 6612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6612, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./762", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./762", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./762/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./762/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./762/binderfs") = 0 umount2("./762/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./762/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./762/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./762/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./762/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./762/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./762") = 0 mkdir("./763", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6614 ./strace-static-x86_64: Process 6614 attached [pid 6614] chdir("./763") = 0 [pid 6614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6614] setpgid(0, 0) = 0 [pid 6614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6614] write(3, "1000", 4) = 4 [pid 6614] close(3) = 0 [pid 6614] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6614] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6614] memfd_create("syzkaller", 0) = 3 [pid 6614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6614] 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"..., 2097152) = 2097152 [pid 6614] munmap(0x7f320ee61000, 2097152) = 0 [pid 6614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6614] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6614] close(3) = 0 [pid 6614] mkdir("./file1", 0777) = 0 [pid 6614] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6614] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6614] chdir("./file1") = 0 [pid 6614] ioctl(4, LOOP_CLR_FD) = 0 [pid 6614] close(4) = 0 [pid 6614] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6614] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6614] ftruncate(5, 33587199) = 0 [ 214.111917][ T6614] loop0: detected capacity change from 0 to 4096 [ 214.124082][ T6614] NILFS (loop0): invalid segment: Checksum error in segment payload [ 214.132402][ T6614] NILFS (loop0): trying rollback from an earlier position [ 214.143808][ T6614] NILFS (loop0): recovery complete [ 214.149530][ T6615] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6614] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6614] exit_group(0) = ? [pid 6614] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6614, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./763", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./763", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./763/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./763/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./763/binderfs") = 0 umount2("./763/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./763/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./763/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./763/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./763/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./763/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./763") = 0 mkdir("./764", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6616 attached , child_tidptr=0x555555c06690) = 6616 [pid 6616] chdir("./764") = 0 [pid 6616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6616] setpgid(0, 0) = 0 [pid 6616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6616] write(3, "1000", 4) = 4 [pid 6616] close(3) = 0 [pid 6616] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6616] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6616] memfd_create("syzkaller", 0) = 3 [pid 6616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6616] 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"..., 2097152) = 2097152 [pid 6616] munmap(0x7f320ee61000, 2097152) = 0 [pid 6616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6616] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6616] close(3) = 0 [pid 6616] mkdir("./file1", 0777) = 0 [pid 6616] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6616] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6616] chdir("./file1") = 0 [pid 6616] ioctl(4, LOOP_CLR_FD) = 0 [pid 6616] close(4) = 0 [pid 6616] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6616] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6616] ftruncate(5, 33587199) = 0 [ 214.342544][ T6616] loop0: detected capacity change from 0 to 4096 [ 214.354412][ T6616] NILFS (loop0): invalid segment: Checksum error in segment payload [ 214.362542][ T6616] NILFS (loop0): trying rollback from an earlier position [ 214.374202][ T6616] NILFS (loop0): recovery complete [ 214.380120][ T6617] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6616] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6616] exit_group(0) = ? [pid 6616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6616, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./764", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./764", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./764/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./764/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./764/binderfs") = 0 umount2("./764/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./764/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./764/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./764/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./764/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./764/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./764") = 0 mkdir("./765", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6618 attached , child_tidptr=0x555555c06690) = 6618 [pid 6618] chdir("./765") = 0 [pid 6618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6618] setpgid(0, 0) = 0 [pid 6618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6618] write(3, "1000", 4) = 4 [pid 6618] close(3) = 0 [pid 6618] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6618] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6618] memfd_create("syzkaller", 0) = 3 [pid 6618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6618] 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"..., 2097152) = 2097152 [pid 6618] munmap(0x7f320ee61000, 2097152) = 0 [pid 6618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6618] close(3) = 0 [pid 6618] mkdir("./file1", 0777) = 0 [pid 6618] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6618] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6618] chdir("./file1") = 0 [pid 6618] ioctl(4, LOOP_CLR_FD) = 0 [pid 6618] close(4) = 0 [pid 6618] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6618] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6618] ftruncate(5, 33587199) = 0 [ 214.568816][ T6618] loop0: detected capacity change from 0 to 4096 [ 214.581835][ T6618] NILFS (loop0): invalid segment: Checksum error in segment payload [ 214.589941][ T6618] NILFS (loop0): trying rollback from an earlier position [ 214.601554][ T6618] NILFS (loop0): recovery complete [ 214.607483][ T6619] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6618] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6618] exit_group(0) = ? [pid 6618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6618, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./765", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./765", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./765/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./765/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./765/binderfs") = 0 umount2("./765/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./765/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./765/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./765/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./765/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./765/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./765") = 0 mkdir("./766", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6620 ./strace-static-x86_64: Process 6620 attached [pid 6620] chdir("./766") = 0 [pid 6620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6620] setpgid(0, 0) = 0 [pid 6620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6620] write(3, "1000", 4) = 4 [pid 6620] close(3) = 0 [pid 6620] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6620] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6620] memfd_create("syzkaller", 0) = 3 [pid 6620] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6620] 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"..., 2097152) = 2097152 [pid 6620] munmap(0x7f320ee61000, 2097152) = 0 [pid 6620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6620] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6620] close(3) = 0 [pid 6620] mkdir("./file1", 0777) = 0 [pid 6620] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6620] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6620] chdir("./file1") = 0 [pid 6620] ioctl(4, LOOP_CLR_FD) = 0 [pid 6620] close(4) = 0 [pid 6620] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6620] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6620] ftruncate(5, 33587199) = 0 [ 214.803352][ T6620] loop0: detected capacity change from 0 to 4096 [ 214.815626][ T6620] NILFS (loop0): invalid segment: Checksum error in segment payload [ 214.823858][ T6620] NILFS (loop0): trying rollback from an earlier position [ 214.835510][ T6620] NILFS (loop0): recovery complete [ 214.841256][ T6621] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6620] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6620] exit_group(0) = ? [pid 6620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6620, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./766", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./766", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./766/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./766/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./766/binderfs") = 0 umount2("./766/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./766/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./766/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./766/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./766/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./766/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./766") = 0 mkdir("./767", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6622 attached , child_tidptr=0x555555c06690) = 6622 [pid 6622] chdir("./767") = 0 [pid 6622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6622] setpgid(0, 0) = 0 [pid 6622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6622] write(3, "1000", 4) = 4 [pid 6622] close(3) = 0 [pid 6622] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6622] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6622] memfd_create("syzkaller", 0) = 3 [pid 6622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6622] 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"..., 2097152) = 2097152 [pid 6622] munmap(0x7f320ee61000, 2097152) = 0 [pid 6622] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6622] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6622] close(3) = 0 [pid 6622] mkdir("./file1", 0777) = 0 [pid 6622] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6622] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6622] chdir("./file1") = 0 [pid 6622] ioctl(4, LOOP_CLR_FD) = 0 [pid 6622] close(4) = 0 [pid 6622] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6622] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6622] ftruncate(5, 33587199) = 0 [ 215.032446][ T6622] loop0: detected capacity change from 0 to 4096 [ 215.044415][ T6622] NILFS (loop0): invalid segment: Checksum error in segment payload [ 215.052720][ T6622] NILFS (loop0): trying rollback from an earlier position [ 215.064487][ T6622] NILFS (loop0): recovery complete [ 215.070567][ T6623] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6622] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6622] exit_group(0) = ? [pid 6622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6622, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./767", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./767", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./767/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./767/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./767/binderfs") = 0 umount2("./767/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./767/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./767/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./767/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./767/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./767/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./767") = 0 mkdir("./768", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6624 attached , child_tidptr=0x555555c06690) = 6624 [pid 6624] chdir("./768") = 0 [pid 6624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6624] setpgid(0, 0) = 0 [pid 6624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6624] write(3, "1000", 4) = 4 [pid 6624] close(3) = 0 [pid 6624] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6624] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6624] memfd_create("syzkaller", 0) = 3 [pid 6624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6624] 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"..., 2097152) = 2097152 [pid 6624] munmap(0x7f320ee61000, 2097152) = 0 [pid 6624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6624] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6624] close(3) = 0 [pid 6624] mkdir("./file1", 0777) = 0 [pid 6624] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6624] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6624] chdir("./file1") = 0 [pid 6624] ioctl(4, LOOP_CLR_FD) = 0 [pid 6624] close(4) = 0 [pid 6624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6624] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6624] ftruncate(5, 33587199) = 0 [ 215.259081][ T6624] loop0: detected capacity change from 0 to 4096 [ 215.271400][ T6624] NILFS (loop0): invalid segment: Checksum error in segment payload [ 215.279439][ T6624] NILFS (loop0): trying rollback from an earlier position [ 215.291437][ T6624] NILFS (loop0): recovery complete [ 215.297294][ T6625] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6624] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6624] exit_group(0) = ? [pid 6624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6624, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./768", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./768", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./768/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./768/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./768/binderfs") = 0 umount2("./768/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./768/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./768/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./768/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./768/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./768/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./768") = 0 mkdir("./769", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6626 ./strace-static-x86_64: Process 6626 attached [pid 6626] chdir("./769") = 0 [pid 6626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6626] setpgid(0, 0) = 0 [pid 6626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6626] write(3, "1000", 4) = 4 [pid 6626] close(3) = 0 [pid 6626] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6626] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6626] memfd_create("syzkaller", 0) = 3 [pid 6626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6626] 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"..., 2097152) = 2097152 [pid 6626] munmap(0x7f320ee61000, 2097152) = 0 [pid 6626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6626] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6626] close(3) = 0 [pid 6626] mkdir("./file1", 0777) = 0 [pid 6626] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6626] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6626] chdir("./file1") = 0 [pid 6626] ioctl(4, LOOP_CLR_FD) = 0 [pid 6626] close(4) = 0 [pid 6626] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6626] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6626] ftruncate(5, 33587199) = 0 [ 215.481663][ T6626] loop0: detected capacity change from 0 to 4096 [ 215.494399][ T6626] NILFS (loop0): invalid segment: Checksum error in segment payload [ 215.502692][ T6626] NILFS (loop0): trying rollback from an earlier position [ 215.514738][ T6626] NILFS (loop0): recovery complete [ 215.520648][ T6627] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6626] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6626] exit_group(0) = ? [pid 6626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6626, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./769", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./769", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./769/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./769/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./769/binderfs") = 0 umount2("./769/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./769/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./769/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./769/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./769/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./769/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./769") = 0 mkdir("./770", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6628 ./strace-static-x86_64: Process 6628 attached [pid 6628] chdir("./770") = 0 [pid 6628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6628] setpgid(0, 0) = 0 [pid 6628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6628] write(3, "1000", 4) = 4 [pid 6628] close(3) = 0 [pid 6628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6628] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6628] memfd_create("syzkaller", 0) = 3 [pid 6628] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6628] 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"..., 2097152) = 2097152 [pid 6628] munmap(0x7f320ee61000, 2097152) = 0 [pid 6628] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6628] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6628] close(3) = 0 [pid 6628] mkdir("./file1", 0777) = 0 [ 215.725460][ T6628] loop0: detected capacity change from 0 to 4096 [ 215.747689][ T6628] NILFS (loop0): invalid segment: Checksum error in segment payload [ 215.755791][ T6628] NILFS (loop0): trying rollback from an earlier position [ 215.766971][ T6628] NILFS (loop0): recovery complete [pid 6628] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6628] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6628] chdir("./file1") = 0 [pid 6628] ioctl(4, LOOP_CLR_FD) = 0 [pid 6628] close(4) = 0 [pid 6628] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6628] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6628] ftruncate(5, 33587199) = 0 [ 215.772798][ T6629] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6628] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6628] exit_group(0) = ? [pid 6628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6628, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./770", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./770", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./770/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./770/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./770/binderfs") = 0 umount2("./770/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./770/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./770/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./770/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./770/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./770/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./770") = 0 mkdir("./771", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6630 ./strace-static-x86_64: Process 6630 attached [pid 6630] chdir("./771") = 0 [pid 6630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6630] setpgid(0, 0) = 0 [pid 6630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6630] write(3, "1000", 4) = 4 [pid 6630] close(3) = 0 [pid 6630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6630] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6630] memfd_create("syzkaller", 0) = 3 [pid 6630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6630] 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"..., 2097152) = 2097152 [pid 6630] munmap(0x7f320ee61000, 2097152) = 0 [pid 6630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6630] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6630] close(3) = 0 [pid 6630] mkdir("./file1", 0777) = 0 [pid 6630] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6630] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6630] chdir("./file1") = 0 [pid 6630] ioctl(4, LOOP_CLR_FD) = 0 [pid 6630] close(4) = 0 [pid 6630] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6630] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6630] ftruncate(5, 33587199) = 0 [ 215.966217][ T6630] loop0: detected capacity change from 0 to 4096 [ 215.979001][ T6630] NILFS (loop0): invalid segment: Checksum error in segment payload [ 215.987054][ T6630] NILFS (loop0): trying rollback from an earlier position [ 215.997943][ T6630] NILFS (loop0): recovery complete [ 216.003567][ T6631] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6630] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6630] exit_group(0) = ? [pid 6630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6630, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./771", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./771", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./771/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./771/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./771/binderfs") = 0 umount2("./771/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./771/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./771/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./771/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./771/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./771/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./771") = 0 mkdir("./772", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6632 attached [pid 6632] chdir("./772") = 0 [pid 6632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6632] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6632 [pid 6632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6632] write(3, "1000", 4) = 4 [pid 6632] close(3) = 0 [pid 6632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6632] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6632] memfd_create("syzkaller", 0) = 3 [pid 6632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6632] 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"..., 2097152) = 2097152 [pid 6632] munmap(0x7f320ee61000, 2097152) = 0 [pid 6632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6632] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6632] close(3) = 0 [pid 6632] mkdir("./file1", 0777) = 0 [pid 6632] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6632] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6632] chdir("./file1") = 0 [pid 6632] ioctl(4, LOOP_CLR_FD) = 0 [pid 6632] close(4) = 0 [pid 6632] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6632] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6632] ftruncate(5, 33587199) = 0 [ 216.189920][ T6632] loop0: detected capacity change from 0 to 4096 [ 216.202125][ T6632] NILFS (loop0): invalid segment: Checksum error in segment payload [ 216.210113][ T6632] NILFS (loop0): trying rollback from an earlier position [ 216.222344][ T6632] NILFS (loop0): recovery complete [ 216.227990][ T6633] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6632] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6632] exit_group(0) = ? [pid 6632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6632, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./772", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./772", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./772/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./772/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./772/binderfs") = 0 umount2("./772/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./772/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./772/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./772/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./772/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./772/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./772") = 0 mkdir("./773", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6634 ./strace-static-x86_64: Process 6634 attached [pid 6634] chdir("./773") = 0 [pid 6634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6634] setpgid(0, 0) = 0 [pid 6634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6634] write(3, "1000", 4) = 4 [pid 6634] close(3) = 0 [pid 6634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6634] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6634] memfd_create("syzkaller", 0) = 3 [pid 6634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6634] 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"..., 2097152) = 2097152 [pid 6634] munmap(0x7f320ee61000, 2097152) = 0 [pid 6634] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6634] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6634] close(3) = 0 [pid 6634] mkdir("./file1", 0777) = 0 [pid 6634] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6634] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6634] chdir("./file1") = 0 [pid 6634] ioctl(4, LOOP_CLR_FD) = 0 [pid 6634] close(4) = 0 [pid 6634] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6634] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6634] ftruncate(5, 33587199) = 0 [ 216.422970][ T6634] loop0: detected capacity change from 0 to 4096 [ 216.435386][ T6634] NILFS (loop0): invalid segment: Checksum error in segment payload [ 216.443454][ T6634] NILFS (loop0): trying rollback from an earlier position [ 216.454453][ T6634] NILFS (loop0): recovery complete [ 216.460167][ T6635] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6634] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6634] exit_group(0) = ? [pid 6634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6634, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./773", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./773", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./773/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./773/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./773/binderfs") = 0 umount2("./773/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./773/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./773/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./773/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./773/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./773/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./773") = 0 mkdir("./774", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6636 ./strace-static-x86_64: Process 6636 attached [pid 6636] chdir("./774") = 0 [pid 6636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6636] setpgid(0, 0) = 0 [pid 6636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6636] write(3, "1000", 4) = 4 [pid 6636] close(3) = 0 [pid 6636] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6636] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6636] memfd_create("syzkaller", 0) = 3 [pid 6636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6636] 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"..., 2097152) = 2097152 [pid 6636] munmap(0x7f320ee61000, 2097152) = 0 [pid 6636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6636] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6636] close(3) = 0 [pid 6636] mkdir("./file1", 0777) = 0 [pid 6636] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6636] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6636] chdir("./file1") = 0 [pid 6636] ioctl(4, LOOP_CLR_FD) = 0 [pid 6636] close(4) = 0 [pid 6636] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6636] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6636] ftruncate(5, 33587199) = 0 [ 216.655404][ T6636] loop0: detected capacity change from 0 to 4096 [ 216.667926][ T6636] NILFS (loop0): invalid segment: Checksum error in segment payload [ 216.676006][ T6636] NILFS (loop0): trying rollback from an earlier position [ 216.687893][ T6636] NILFS (loop0): recovery complete [ 216.694379][ T6637] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6636] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6636] exit_group(0) = ? [pid 6636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6636, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./774", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./774", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./774/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./774/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./774/binderfs") = 0 umount2("./774/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./774/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./774/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./774/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./774/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./774/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./774") = 0 mkdir("./775", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6638 ./strace-static-x86_64: Process 6638 attached [pid 6638] chdir("./775") = 0 [pid 6638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6638] setpgid(0, 0) = 0 [pid 6638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6638] write(3, "1000", 4) = 4 [pid 6638] close(3) = 0 [pid 6638] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6638] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6638] memfd_create("syzkaller", 0) = 3 [pid 6638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6638] 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"..., 2097152) = 2097152 [pid 6638] munmap(0x7f320ee61000, 2097152) = 0 [pid 6638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6638] close(3) = 0 [pid 6638] mkdir("./file1", 0777) = 0 [pid 6638] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6638] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6638] chdir("./file1") = 0 [pid 6638] ioctl(4, LOOP_CLR_FD) = 0 [pid 6638] close(4) = 0 [pid 6638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6638] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6638] ftruncate(5, 33587199) = 0 [ 216.875875][ T6638] loop0: detected capacity change from 0 to 4096 [ 216.887716][ T6638] NILFS (loop0): invalid segment: Checksum error in segment payload [ 216.895776][ T6638] NILFS (loop0): trying rollback from an earlier position [ 216.907043][ T6638] NILFS (loop0): recovery complete [ 216.912727][ T6639] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6638] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6638] exit_group(0) = ? [pid 6638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6638, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./775", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./775", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./775/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./775/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./775/binderfs") = 0 umount2("./775/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./775/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./775/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./775/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./775/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./775/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./775") = 0 mkdir("./776", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6640 ./strace-static-x86_64: Process 6640 attached [pid 6640] chdir("./776") = 0 [pid 6640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6640] setpgid(0, 0) = 0 [pid 6640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6640] write(3, "1000", 4) = 4 [pid 6640] close(3) = 0 [pid 6640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6640] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6640] memfd_create("syzkaller", 0) = 3 [pid 6640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6640] 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"..., 2097152) = 2097152 [pid 6640] munmap(0x7f320ee61000, 2097152) = 0 [pid 6640] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6640] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6640] close(3) = 0 [pid 6640] mkdir("./file1", 0777) = 0 [pid 6640] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6640] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6640] chdir("./file1") = 0 [pid 6640] ioctl(4, LOOP_CLR_FD) = 0 [pid 6640] close(4) = 0 [pid 6640] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6640] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6640] ftruncate(5, 33587199) = 0 [ 217.105315][ T6640] loop0: detected capacity change from 0 to 4096 [ 217.118216][ T6640] NILFS (loop0): invalid segment: Checksum error in segment payload [ 217.126302][ T6640] NILFS (loop0): trying rollback from an earlier position [ 217.137115][ T6640] NILFS (loop0): recovery complete [ 217.142828][ T6641] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6640] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6640] exit_group(0) = ? [pid 6640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6640, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./776", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./776", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./776/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./776/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./776/binderfs") = 0 umount2("./776/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./776/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./776/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./776/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./776/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./776/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./776") = 0 mkdir("./777", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6642 attached [pid 6642] chdir("./777") = 0 [pid 6642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6642] setpgid(0, 0) = 0 [pid 6642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6642 [pid 6642] <... openat resumed>) = 3 [pid 6642] write(3, "1000", 4) = 4 [pid 6642] close(3) = 0 [pid 6642] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6642] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6642] memfd_create("syzkaller", 0) = 3 [pid 6642] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6642] 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"..., 2097152) = 2097152 [pid 6642] munmap(0x7f320ee61000, 2097152) = 0 [pid 6642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6642] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6642] close(3) = 0 [pid 6642] mkdir("./file1", 0777) = 0 [pid 6642] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6642] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6642] chdir("./file1") = 0 [pid 6642] ioctl(4, LOOP_CLR_FD) = 0 [pid 6642] close(4) = 0 [pid 6642] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6642] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6642] ftruncate(5, 33587199) = 0 [ 217.323365][ T6642] loop0: detected capacity change from 0 to 4096 [ 217.336071][ T6642] NILFS (loop0): invalid segment: Checksum error in segment payload [ 217.344161][ T6642] NILFS (loop0): trying rollback from an earlier position [ 217.355324][ T6642] NILFS (loop0): recovery complete [ 217.360896][ T6643] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6642] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6642] exit_group(0) = ? [pid 6642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6642, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./777", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./777", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./777/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./777/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./777/binderfs") = 0 umount2("./777/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./777/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./777/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./777/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./777/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./777/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./777") = 0 mkdir("./778", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6644 ./strace-static-x86_64: Process 6644 attached [pid 6644] chdir("./778") = 0 [pid 6644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6644] setpgid(0, 0) = 0 [pid 6644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6644] write(3, "1000", 4) = 4 [pid 6644] close(3) = 0 [pid 6644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6644] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6644] memfd_create("syzkaller", 0) = 3 [pid 6644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6644] 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"..., 2097152) = 2097152 [pid 6644] munmap(0x7f320ee61000, 2097152) = 0 [pid 6644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6644] close(3) = 0 [pid 6644] mkdir("./file1", 0777) = 0 [pid 6644] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6644] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6644] chdir("./file1") = 0 [pid 6644] ioctl(4, LOOP_CLR_FD) = 0 [pid 6644] close(4) = 0 [pid 6644] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6644] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6644] ftruncate(5, 33587199) = 0 [ 217.533016][ T6644] loop0: detected capacity change from 0 to 4096 [ 217.545287][ T6644] NILFS (loop0): invalid segment: Checksum error in segment payload [ 217.553450][ T6644] NILFS (loop0): trying rollback from an earlier position [ 217.564855][ T6644] NILFS (loop0): recovery complete [ 217.570828][ T6645] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6644] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6644] exit_group(0) = ? [pid 6644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6644, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./778", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./778", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./778/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./778/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./778/binderfs") = 0 umount2("./778/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./778/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./778/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./778/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./778/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./778/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./778") = 0 mkdir("./779", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6646 ./strace-static-x86_64: Process 6646 attached [pid 6646] chdir("./779") = 0 [pid 6646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6646] setpgid(0, 0) = 0 [pid 6646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6646] write(3, "1000", 4) = 4 [pid 6646] close(3) = 0 [pid 6646] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6646] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6646] memfd_create("syzkaller", 0) = 3 [pid 6646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6646] 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"..., 2097152) = 2097152 [pid 6646] munmap(0x7f320ee61000, 2097152) = 0 [pid 6646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6646] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6646] close(3) = 0 [pid 6646] mkdir("./file1", 0777) = 0 [pid 6646] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6646] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6646] chdir("./file1") = 0 [pid 6646] ioctl(4, LOOP_CLR_FD) = 0 [pid 6646] close(4) = 0 [pid 6646] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6646] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6646] ftruncate(5, 33587199) = 0 [ 217.760602][ T6646] loop0: detected capacity change from 0 to 4096 [ 217.773619][ T6646] NILFS (loop0): invalid segment: Checksum error in segment payload [ 217.781741][ T6646] NILFS (loop0): trying rollback from an earlier position [ 217.792533][ T6646] NILFS (loop0): recovery complete [ 217.798127][ T6647] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6646] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6646] exit_group(0) = ? [pid 6646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6646, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./779", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./779", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./779/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./779/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./779/binderfs") = 0 umount2("./779/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./779/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./779/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./779/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./779/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./779/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./779") = 0 mkdir("./780", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6648 ./strace-static-x86_64: Process 6648 attached [pid 6648] chdir("./780") = 0 [pid 6648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6648] setpgid(0, 0) = 0 [pid 6648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6648] write(3, "1000", 4) = 4 [pid 6648] close(3) = 0 [pid 6648] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6648] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6648] memfd_create("syzkaller", 0) = 3 [pid 6648] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6648] 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"..., 2097152) = 2097152 [pid 6648] munmap(0x7f320ee61000, 2097152) = 0 [pid 6648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6648] close(3) = 0 [pid 6648] mkdir("./file1", 0777) = 0 [pid 6648] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6648] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6648] chdir("./file1") = 0 [pid 6648] ioctl(4, LOOP_CLR_FD) = 0 [pid 6648] close(4) = 0 [pid 6648] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6648] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6648] ftruncate(5, 33587199) = 0 [ 217.992999][ T6648] loop0: detected capacity change from 0 to 4096 [ 218.005049][ T6648] NILFS (loop0): invalid segment: Checksum error in segment payload [ 218.013175][ T6648] NILFS (loop0): trying rollback from an earlier position [ 218.024560][ T6648] NILFS (loop0): recovery complete [ 218.030085][ T6649] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6648] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6648] exit_group(0) = ? [pid 6648] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6648, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./780", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./780", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./780/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./780/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./780/binderfs") = 0 umount2("./780/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./780/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./780/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./780/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./780/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./780/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./780") = 0 mkdir("./781", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6650 ./strace-static-x86_64: Process 6650 attached [pid 6650] chdir("./781") = 0 [pid 6650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6650] setpgid(0, 0) = 0 [pid 6650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6650] write(3, "1000", 4) = 4 [pid 6650] close(3) = 0 [pid 6650] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6650] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6650] memfd_create("syzkaller", 0) = 3 [pid 6650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6650] 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"..., 2097152) = 2097152 [pid 6650] munmap(0x7f320ee61000, 2097152) = 0 [pid 6650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6650] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6650] close(3) = 0 [pid 6650] mkdir("./file1", 0777) = 0 [pid 6650] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6650] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6650] chdir("./file1") = 0 [pid 6650] ioctl(4, LOOP_CLR_FD) = 0 [pid 6650] close(4) = 0 [pid 6650] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6650] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6650] ftruncate(5, 33587199) = 0 [ 218.214797][ T6650] loop0: detected capacity change from 0 to 4096 [ 218.227282][ T6650] NILFS (loop0): invalid segment: Checksum error in segment payload [ 218.235499][ T6650] NILFS (loop0): trying rollback from an earlier position [ 218.247045][ T6650] NILFS (loop0): recovery complete [ 218.252722][ T6651] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6650] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6650] exit_group(0) = ? [pid 6650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6650, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./781", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./781", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./781/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./781/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./781/binderfs") = 0 umount2("./781/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./781/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./781/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./781/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./781/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./781/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./781") = 0 mkdir("./782", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6652 ./strace-static-x86_64: Process 6652 attached [pid 6652] chdir("./782") = 0 [pid 6652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6652] setpgid(0, 0) = 0 [pid 6652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6652] write(3, "1000", 4) = 4 [pid 6652] close(3) = 0 [pid 6652] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6652] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6652] memfd_create("syzkaller", 0) = 3 [pid 6652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6652] 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"..., 2097152) = 2097152 [pid 6652] munmap(0x7f320ee61000, 2097152) = 0 [pid 6652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6652] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6652] close(3) = 0 [pid 6652] mkdir("./file1", 0777) = 0 [pid 6652] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6652] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6652] chdir("./file1") = 0 [pid 6652] ioctl(4, LOOP_CLR_FD) = 0 [pid 6652] close(4) = 0 [pid 6652] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6652] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6652] ftruncate(5, 33587199) = 0 [ 218.444602][ T6652] loop0: detected capacity change from 0 to 4096 [ 218.456563][ T6652] NILFS (loop0): invalid segment: Checksum error in segment payload [ 218.464635][ T6652] NILFS (loop0): trying rollback from an earlier position [ 218.475995][ T6652] NILFS (loop0): recovery complete [ 218.481901][ T6653] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6652] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6652] exit_group(0) = ? [pid 6652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6652, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./782", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./782", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./782/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./782/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./782/binderfs") = 0 umount2("./782/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./782/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./782/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./782/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./782/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./782/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./782") = 0 mkdir("./783", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6654 ./strace-static-x86_64: Process 6654 attached [pid 6654] chdir("./783") = 0 [pid 6654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6654] setpgid(0, 0) = 0 [pid 6654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6654] write(3, "1000", 4) = 4 [pid 6654] close(3) = 0 [pid 6654] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6654] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6654] memfd_create("syzkaller", 0) = 3 [pid 6654] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6654] 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"..., 2097152) = 2097152 [pid 6654] munmap(0x7f320ee61000, 2097152) = 0 [pid 6654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6654] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6654] close(3) = 0 [pid 6654] mkdir("./file1", 0777) = 0 [pid 6654] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6654] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6654] chdir("./file1") = 0 [pid 6654] ioctl(4, LOOP_CLR_FD) = 0 [pid 6654] close(4) = 0 [pid 6654] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6654] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6654] ftruncate(5, 33587199) = 0 [ 218.674131][ T6654] loop0: detected capacity change from 0 to 4096 [ 218.686397][ T6654] NILFS (loop0): invalid segment: Checksum error in segment payload [ 218.694648][ T6654] NILFS (loop0): trying rollback from an earlier position [ 218.705920][ T6654] NILFS (loop0): recovery complete [ 218.711855][ T6655] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6654] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6654] exit_group(0) = ? [pid 6654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6654, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./783", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./783", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./783/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./783/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./783/binderfs") = 0 umount2("./783/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./783/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./783/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./783/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./783/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./783/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./783") = 0 mkdir("./784", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6656 ./strace-static-x86_64: Process 6656 attached [pid 6656] chdir("./784") = 0 [pid 6656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6656] setpgid(0, 0) = 0 [pid 6656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6656] write(3, "1000", 4) = 4 [pid 6656] close(3) = 0 [pid 6656] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6656] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6656] memfd_create("syzkaller", 0) = 3 [pid 6656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6656] 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"..., 2097152) = 2097152 [pid 6656] munmap(0x7f320ee61000, 2097152) = 0 [pid 6656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6656] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6656] close(3) = 0 [pid 6656] mkdir("./file1", 0777) = 0 [pid 6656] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6656] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6656] chdir("./file1") = 0 [pid 6656] ioctl(4, LOOP_CLR_FD) = 0 [pid 6656] close(4) = 0 [pid 6656] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6656] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6656] ftruncate(5, 33587199) = 0 [ 218.904979][ T6656] loop0: detected capacity change from 0 to 4096 [ 218.917843][ T6656] NILFS (loop0): invalid segment: Checksum error in segment payload [ 218.926050][ T6656] NILFS (loop0): trying rollback from an earlier position [ 218.937769][ T6656] NILFS (loop0): recovery complete [ 218.943678][ T6657] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6656] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6656] exit_group(0) = ? [pid 6656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6656, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./784", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./784", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./784/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./784/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./784/binderfs") = 0 umount2("./784/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./784/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./784/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./784/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./784/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./784/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./784") = 0 mkdir("./785", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6658 ./strace-static-x86_64: Process 6658 attached [pid 6658] chdir("./785") = 0 [pid 6658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6658] setpgid(0, 0) = 0 [pid 6658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6658] write(3, "1000", 4) = 4 [pid 6658] close(3) = 0 [pid 6658] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6658] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6658] memfd_create("syzkaller", 0) = 3 [pid 6658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6658] 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"..., 2097152) = 2097152 [pid 6658] munmap(0x7f320ee61000, 2097152) = 0 [pid 6658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6658] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6658] close(3) = 0 [pid 6658] mkdir("./file1", 0777) = 0 [pid 6658] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6658] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6658] chdir("./file1") = 0 [pid 6658] ioctl(4, LOOP_CLR_FD) = 0 [pid 6658] close(4) = 0 [pid 6658] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6658] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6658] ftruncate(5, 33587199) = 0 [ 219.135031][ T6658] loop0: detected capacity change from 0 to 4096 [ 219.147116][ T6658] NILFS (loop0): invalid segment: Checksum error in segment payload [ 219.155142][ T6658] NILFS (loop0): trying rollback from an earlier position [ 219.165926][ T6658] NILFS (loop0): recovery complete [ 219.171852][ T6659] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6658] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6658] exit_group(0) = ? [pid 6658] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6658, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./785", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./785", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./785/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./785/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./785/binderfs") = 0 umount2("./785/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./785/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./785/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./785/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./785/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./785/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./785") = 0 mkdir("./786", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6660 attached [pid 6660] chdir("./786" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6660 [pid 6660] <... chdir resumed>) = 0 [pid 6660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6660] setpgid(0, 0) = 0 [pid 6660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6660] write(3, "1000", 4) = 4 [pid 6660] close(3) = 0 [pid 6660] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6660] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6660] memfd_create("syzkaller", 0) = 3 [pid 6660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6660] 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"..., 2097152) = 2097152 [pid 6660] munmap(0x7f320ee61000, 2097152) = 0 [pid 6660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6660] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6660] close(3) = 0 [pid 6660] mkdir("./file1", 0777) = 0 [pid 6660] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6660] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6660] chdir("./file1") = 0 [pid 6660] ioctl(4, LOOP_CLR_FD) = 0 [pid 6660] close(4) = 0 [pid 6660] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6660] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6660] ftruncate(5, 33587199) = 0 [ 219.358256][ T6660] loop0: detected capacity change from 0 to 4096 [ 219.369762][ T6660] NILFS (loop0): invalid segment: Checksum error in segment payload [ 219.378218][ T6660] NILFS (loop0): trying rollback from an earlier position [ 219.389479][ T6660] NILFS (loop0): recovery complete [ 219.395332][ T6661] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6660] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6660] exit_group(0) = ? [pid 6660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6660, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./786", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./786", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./786/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./786/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./786/binderfs") = 0 umount2("./786/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./786/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./786/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./786/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./786/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./786/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./786") = 0 mkdir("./787", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6662 attached [pid 6662] chdir("./787") = 0 [pid 6662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6662] setpgid(0, 0) = 0 [pid 6662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6662] write(3, "1000", 4) = 4 [pid 6662] close(3) = 0 [pid 6662] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6662] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6662] memfd_create("syzkaller", 0) = 3 [pid 6662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6662 [pid 6662] 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"..., 2097152) = 2097152 [pid 6662] munmap(0x7f320ee61000, 2097152) = 0 [pid 6662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6662] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6662] close(3) = 0 [pid 6662] mkdir("./file1", 0777) = 0 [pid 6662] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6662] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6662] chdir("./file1") = 0 [pid 6662] ioctl(4, LOOP_CLR_FD) = 0 [pid 6662] close(4) = 0 [pid 6662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6662] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6662] ftruncate(5, 33587199) = 0 [ 219.578840][ T6662] loop0: detected capacity change from 0 to 4096 [ 219.592062][ T6662] NILFS (loop0): invalid segment: Checksum error in segment payload [ 219.600096][ T6662] NILFS (loop0): trying rollback from an earlier position [ 219.612013][ T6662] NILFS (loop0): recovery complete [ 219.617864][ T6663] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6662] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6662] exit_group(0) = ? [pid 6662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6662, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./787", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./787", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./787/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./787/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./787/binderfs") = 0 umount2("./787/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./787/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./787/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./787/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./787/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./787/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./787") = 0 mkdir("./788", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6664 ./strace-static-x86_64: Process 6664 attached [pid 6664] chdir("./788") = 0 [pid 6664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6664] setpgid(0, 0) = 0 [pid 6664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6664] write(3, "1000", 4) = 4 [pid 6664] close(3) = 0 [pid 6664] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6664] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6664] memfd_create("syzkaller", 0) = 3 [pid 6664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6664] 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"..., 2097152) = 2097152 [pid 6664] munmap(0x7f320ee61000, 2097152) = 0 [pid 6664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6664] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6664] close(3) = 0 [pid 6664] mkdir("./file1", 0777) = 0 [pid 6664] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6664] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6664] chdir("./file1") = 0 [pid 6664] ioctl(4, LOOP_CLR_FD) = 0 [pid 6664] close(4) = 0 [pid 6664] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6664] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6664] ftruncate(5, 33587199) = 0 [ 219.798991][ T6664] loop0: detected capacity change from 0 to 4096 [ 219.812507][ T6664] NILFS (loop0): invalid segment: Checksum error in segment payload [ 219.820610][ T6664] NILFS (loop0): trying rollback from an earlier position [ 219.831969][ T6664] NILFS (loop0): recovery complete [ 219.837626][ T6665] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6664] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6664] exit_group(0) = ? [pid 6664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6664, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./788", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./788", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./788/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./788/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./788/binderfs") = 0 umount2("./788/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./788/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./788/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./788/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./788/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./788/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./788") = 0 mkdir("./789", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6666 ./strace-static-x86_64: Process 6666 attached [pid 6666] chdir("./789") = 0 [pid 6666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6666] setpgid(0, 0) = 0 [pid 6666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6666] write(3, "1000", 4) = 4 [pid 6666] close(3) = 0 [pid 6666] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6666] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6666] memfd_create("syzkaller", 0) = 3 [pid 6666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6666] 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"..., 2097152) = 2097152 [pid 6666] munmap(0x7f320ee61000, 2097152) = 0 [pid 6666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6666] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6666] close(3) = 0 [pid 6666] mkdir("./file1", 0777) = 0 [pid 6666] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6666] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6666] chdir("./file1") = 0 [pid 6666] ioctl(4, LOOP_CLR_FD) = 0 [pid 6666] close(4) = 0 [pid 6666] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6666] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6666] ftruncate(5, 33587199) = 0 [ 220.028850][ T6666] loop0: detected capacity change from 0 to 4096 [ 220.041156][ T6666] NILFS (loop0): invalid segment: Checksum error in segment payload [ 220.049160][ T6666] NILFS (loop0): trying rollback from an earlier position [ 220.060412][ T6666] NILFS (loop0): recovery complete [ 220.066223][ T6667] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6666] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6666] exit_group(0) = ? [pid 6666] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6666, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./789", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./789", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./789/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./789/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./789/binderfs") = 0 umount2("./789/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./789/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./789/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./789/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./789/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./789/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./789") = 0 mkdir("./790", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6668 attached , child_tidptr=0x555555c06690) = 6668 [pid 6668] chdir("./790") = 0 [pid 6668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6668] setpgid(0, 0) = 0 [pid 6668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6668] write(3, "1000", 4) = 4 [pid 6668] close(3) = 0 [pid 6668] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6668] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6668] memfd_create("syzkaller", 0) = 3 [pid 6668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6668] 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"..., 2097152) = 2097152 [pid 6668] munmap(0x7f320ee61000, 2097152) = 0 [pid 6668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6668] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6668] close(3) = 0 [pid 6668] mkdir("./file1", 0777) = 0 [pid 6668] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6668] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6668] chdir("./file1") = 0 [pid 6668] ioctl(4, LOOP_CLR_FD) = 0 [pid 6668] close(4) = 0 [pid 6668] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6668] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6668] ftruncate(5, 33587199) = 0 [ 220.258605][ T6668] loop0: detected capacity change from 0 to 4096 [ 220.271534][ T6668] NILFS (loop0): invalid segment: Checksum error in segment payload [ 220.279551][ T6668] NILFS (loop0): trying rollback from an earlier position [ 220.290578][ T6668] NILFS (loop0): recovery complete [ 220.296338][ T6669] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6668] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6668] exit_group(0) = ? [pid 6668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6668, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./790", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./790", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./790/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./790/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./790/binderfs") = 0 umount2("./790/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./790/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./790/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./790/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./790/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./790/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./790") = 0 mkdir("./791", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6670 attached [pid 6670] chdir("./791") = 0 [pid 6670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6670] setpgid(0, 0) = 0 [pid 6670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6670] write(3, "1000", 4) = 4 [pid 6670] close(3) = 0 [pid 6670] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6670 [pid 6670] <... symlink resumed>) = 0 [pid 6670] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6670] memfd_create("syzkaller", 0) = 3 [pid 6670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6670] 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"..., 2097152) = 2097152 [pid 6670] munmap(0x7f320ee61000, 2097152) = 0 [pid 6670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6670] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6670] close(3) = 0 [pid 6670] mkdir("./file1", 0777) = 0 [pid 6670] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6670] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6670] chdir("./file1") = 0 [pid 6670] ioctl(4, LOOP_CLR_FD) = 0 [pid 6670] close(4) = 0 [pid 6670] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6670] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6670] ftruncate(5, 33587199) = 0 [ 220.486949][ T6670] loop0: detected capacity change from 0 to 4096 [ 220.499998][ T6670] NILFS (loop0): invalid segment: Checksum error in segment payload [ 220.508071][ T6670] NILFS (loop0): trying rollback from an earlier position [ 220.519527][ T6670] NILFS (loop0): recovery complete [ 220.525370][ T6671] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6670] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6670] exit_group(0) = ? [pid 6670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6670, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./791", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./791", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./791/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./791/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./791/binderfs") = 0 umount2("./791/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./791/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./791/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./791/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./791/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./791/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./791") = 0 mkdir("./792", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6672 ./strace-static-x86_64: Process 6672 attached [pid 6672] chdir("./792") = 0 [pid 6672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6672] setpgid(0, 0) = 0 [pid 6672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6672] write(3, "1000", 4) = 4 [pid 6672] close(3) = 0 [pid 6672] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6672] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6672] memfd_create("syzkaller", 0) = 3 [pid 6672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6672] 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"..., 2097152) = 2097152 [pid 6672] munmap(0x7f320ee61000, 2097152) = 0 [pid 6672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6672] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6672] close(3) = 0 [pid 6672] mkdir("./file1", 0777) = 0 [pid 6672] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6672] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6672] chdir("./file1") = 0 [pid 6672] ioctl(4, LOOP_CLR_FD) = 0 [pid 6672] close(4) = 0 [pid 6672] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6672] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6672] ftruncate(5, 33587199) = 0 [ 220.715749][ T6672] loop0: detected capacity change from 0 to 4096 [ 220.729811][ T6672] NILFS (loop0): invalid segment: Checksum error in segment payload [ 220.737915][ T6672] NILFS (loop0): trying rollback from an earlier position [ 220.749371][ T6672] NILFS (loop0): recovery complete [ 220.755348][ T6673] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6672] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6672] exit_group(0) = ? [pid 6672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6672, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./792", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./792", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./792/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./792/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./792/binderfs") = 0 umount2("./792/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./792/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./792/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./792/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./792/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./792/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./792") = 0 mkdir("./793", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6674 ./strace-static-x86_64: Process 6674 attached [pid 6674] chdir("./793") = 0 [pid 6674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6674] setpgid(0, 0) = 0 [pid 6674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6674] write(3, "1000", 4) = 4 [pid 6674] close(3) = 0 [pid 6674] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6674] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6674] memfd_create("syzkaller", 0) = 3 [pid 6674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6674] 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"..., 2097152) = 2097152 [pid 6674] munmap(0x7f320ee61000, 2097152) = 0 [pid 6674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6674] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6674] close(3) = 0 [pid 6674] mkdir("./file1", 0777) = 0 [pid 6674] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6674] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6674] chdir("./file1") = 0 [pid 6674] ioctl(4, LOOP_CLR_FD) = 0 [pid 6674] close(4) = 0 [pid 6674] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6674] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6674] ftruncate(5, 33587199) = 0 [ 220.947210][ T6674] loop0: detected capacity change from 0 to 4096 [ 220.959434][ T6674] NILFS (loop0): invalid segment: Checksum error in segment payload [ 220.967630][ T6674] NILFS (loop0): trying rollback from an earlier position [ 220.979649][ T6674] NILFS (loop0): recovery complete [ 220.985465][ T6675] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6674] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6674] exit_group(0) = ? [pid 6674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6674, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./793", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./793", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./793/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./793/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./793/binderfs") = 0 umount2("./793/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./793/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./793/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./793/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./793/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./793/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./793") = 0 mkdir("./794", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6676 ./strace-static-x86_64: Process 6676 attached [pid 6676] chdir("./794") = 0 [pid 6676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6676] setpgid(0, 0) = 0 [pid 6676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6676] write(3, "1000", 4) = 4 [pid 6676] close(3) = 0 [pid 6676] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6676] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6676] memfd_create("syzkaller", 0) = 3 [pid 6676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6676] 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"..., 2097152) = 2097152 [pid 6676] munmap(0x7f320ee61000, 2097152) = 0 [pid 6676] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6676] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6676] close(3) = 0 [pid 6676] mkdir("./file1", 0777) = 0 [pid 6676] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6676] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6676] chdir("./file1") = 0 [pid 6676] ioctl(4, LOOP_CLR_FD) = 0 [pid 6676] close(4) = 0 [pid 6676] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6676] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6676] ftruncate(5, 33587199) = 0 [ 221.174653][ T6676] loop0: detected capacity change from 0 to 4096 [ 221.187380][ T6676] NILFS (loop0): invalid segment: Checksum error in segment payload [ 221.195526][ T6676] NILFS (loop0): trying rollback from an earlier position [ 221.207416][ T6676] NILFS (loop0): recovery complete [ 221.213280][ T6677] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6676] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6676] exit_group(0) = ? [pid 6676] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6676, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./794", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./794", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./794/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./794/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./794/binderfs") = 0 umount2("./794/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./794/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./794/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./794/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./794/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./794/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./794") = 0 mkdir("./795", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6678 attached [pid 6678] chdir("./795") = 0 [pid 6678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6678] setpgid(0, 0) = 0 [pid 6678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6678 [pid 6678] <... openat resumed>) = 3 [pid 6678] write(3, "1000", 4) = 4 [pid 6678] close(3) = 0 [pid 6678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6678] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6678] memfd_create("syzkaller", 0) = 3 [pid 6678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6678] 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"..., 2097152) = 2097152 [pid 6678] munmap(0x7f320ee61000, 2097152) = 0 [pid 6678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6678] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6678] close(3) = 0 [pid 6678] mkdir("./file1", 0777) = 0 [pid 6678] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6678] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6678] chdir("./file1") = 0 [pid 6678] ioctl(4, LOOP_CLR_FD) = 0 [pid 6678] close(4) = 0 [pid 6678] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6678] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6678] ftruncate(5, 33587199) = 0 [ 221.396993][ T6678] loop0: detected capacity change from 0 to 4096 [ 221.410496][ T6678] NILFS (loop0): invalid segment: Checksum error in segment payload [ 221.418514][ T6678] NILFS (loop0): trying rollback from an earlier position [ 221.429923][ T6678] NILFS (loop0): recovery complete [ 221.435810][ T6679] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6678] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6678] exit_group(0) = ? [pid 6678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6678, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./795", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./795", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./795/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./795/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./795/binderfs") = 0 umount2("./795/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./795/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./795/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./795/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./795/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./795/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./795") = 0 mkdir("./796", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6680 attached [pid 6680] chdir("./796") = 0 [pid 6680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6680] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6680 [pid 6680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6680] write(3, "1000", 4) = 4 [pid 6680] close(3) = 0 [pid 6680] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6680] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6680] memfd_create("syzkaller", 0) = 3 [pid 6680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6680] 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"..., 2097152) = 2097152 [pid 6680] munmap(0x7f320ee61000, 2097152) = 0 [pid 6680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6680] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6680] close(3) = 0 [pid 6680] mkdir("./file1", 0777) = 0 [pid 6680] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6680] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6680] chdir("./file1") = 0 [pid 6680] ioctl(4, LOOP_CLR_FD) = 0 [pid 6680] close(4) = 0 [pid 6680] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6680] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6680] ftruncate(5, 33587199) = 0 [ 221.625686][ T6680] loop0: detected capacity change from 0 to 4096 [ 221.638706][ T6680] NILFS (loop0): invalid segment: Checksum error in segment payload [ 221.647027][ T6680] NILFS (loop0): trying rollback from an earlier position [ 221.658467][ T6680] NILFS (loop0): recovery complete [ 221.664197][ T6681] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6680] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6680] exit_group(0) = ? [pid 6680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6680, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./796", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./796", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./796/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./796/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./796/binderfs") = 0 umount2("./796/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./796/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./796/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./796/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./796/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./796/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./796") = 0 mkdir("./797", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6682 attached , child_tidptr=0x555555c06690) = 6682 [pid 6682] chdir("./797") = 0 [pid 6682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6682] setpgid(0, 0) = 0 [pid 6682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6682] write(3, "1000", 4) = 4 [pid 6682] close(3) = 0 [pid 6682] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6682] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6682] memfd_create("syzkaller", 0) = 3 [pid 6682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6682] 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"..., 2097152) = 2097152 [pid 6682] munmap(0x7f320ee61000, 2097152) = 0 [pid 6682] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6682] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6682] close(3) = 0 [pid 6682] mkdir("./file1", 0777) = 0 [pid 6682] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6682] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6682] chdir("./file1") = 0 [pid 6682] ioctl(4, LOOP_CLR_FD) = 0 [pid 6682] close(4) = 0 [pid 6682] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6682] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6682] ftruncate(5, 33587199) = 0 [ 221.847608][ T6682] loop0: detected capacity change from 0 to 4096 [ 221.860046][ T6682] NILFS (loop0): invalid segment: Checksum error in segment payload [ 221.868404][ T6682] NILFS (loop0): trying rollback from an earlier position [ 221.880154][ T6682] NILFS (loop0): recovery complete [ 221.885962][ T6683] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6682] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6682] exit_group(0) = ? [pid 6682] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6682, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./797", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./797", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./797/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./797/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./797/binderfs") = 0 umount2("./797/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./797/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./797/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./797/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./797/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./797/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./797") = 0 mkdir("./798", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6684 attached [pid 6684] chdir("./798") = 0 [pid 6684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6684] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6684 [pid 6684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6684] write(3, "1000", 4) = 4 [pid 6684] close(3) = 0 [pid 6684] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6684] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6684] memfd_create("syzkaller", 0) = 3 [pid 6684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6684] 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"..., 2097152) = 2097152 [pid 6684] munmap(0x7f320ee61000, 2097152) = 0 [pid 6684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6684] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6684] close(3) = 0 [pid 6684] mkdir("./file1", 0777) = 0 [pid 6684] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6684] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6684] chdir("./file1") = 0 [pid 6684] ioctl(4, LOOP_CLR_FD) = 0 [pid 6684] close(4) = 0 [pid 6684] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6684] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6684] ftruncate(5, 33587199) = 0 [ 222.066683][ T6684] loop0: detected capacity change from 0 to 4096 [ 222.078661][ T6684] NILFS (loop0): invalid segment: Checksum error in segment payload [ 222.086714][ T6684] NILFS (loop0): trying rollback from an earlier position [ 222.098008][ T6684] NILFS (loop0): recovery complete [ 222.103824][ T6685] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6684] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6684] exit_group(0) = ? [pid 6684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6684, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./798", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./798", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./798/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./798/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./798/binderfs") = 0 umount2("./798/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./798/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./798/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./798/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./798/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./798/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./798") = 0 mkdir("./799", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6686 attached [pid 6686] chdir("./799") = 0 [pid 6686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6686] setpgid(0, 0) = 0 [pid 6686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6686 [pid 6686] <... openat resumed>) = 3 [pid 6686] write(3, "1000", 4) = 4 [pid 6686] close(3) = 0 [pid 6686] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6686] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6686] memfd_create("syzkaller", 0) = 3 [pid 6686] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6686] 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"..., 2097152) = 2097152 [pid 6686] munmap(0x7f320ee61000, 2097152) = 0 [pid 6686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6686] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6686] close(3) = 0 [pid 6686] mkdir("./file1", 0777) = 0 [pid 6686] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6686] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6686] chdir("./file1") = 0 [pid 6686] ioctl(4, LOOP_CLR_FD) = 0 [pid 6686] close(4) = 0 [pid 6686] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6686] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6686] ftruncate(5, 33587199) = 0 [ 222.292108][ T6686] loop0: detected capacity change from 0 to 4096 [ 222.304472][ T6686] NILFS (loop0): invalid segment: Checksum error in segment payload [ 222.312573][ T6686] NILFS (loop0): trying rollback from an earlier position [ 222.323309][ T6686] NILFS (loop0): recovery complete [ 222.328891][ T6687] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6686] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6686] exit_group(0) = ? [pid 6686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6686, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./799", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./799", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./799/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./799/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./799/binderfs") = 0 umount2("./799/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./799/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./799/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./799/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./799/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./799/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./799") = 0 mkdir("./800", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6688 ./strace-static-x86_64: Process 6688 attached [pid 6688] chdir("./800") = 0 [pid 6688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6688] setpgid(0, 0) = 0 [pid 6688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6688] write(3, "1000", 4) = 4 [pid 6688] close(3) = 0 [pid 6688] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6688] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6688] memfd_create("syzkaller", 0) = 3 [pid 6688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6688] 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"..., 2097152) = 2097152 [pid 6688] munmap(0x7f320ee61000, 2097152) = 0 [pid 6688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6688] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6688] close(3) = 0 [pid 6688] mkdir("./file1", 0777) = 0 [pid 6688] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6688] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6688] chdir("./file1") = 0 [pid 6688] ioctl(4, LOOP_CLR_FD) = 0 [pid 6688] close(4) = 0 [pid 6688] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6688] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6688] ftruncate(5, 33587199) = 0 [ 222.507557][ T6688] loop0: detected capacity change from 0 to 4096 [ 222.519721][ T6688] NILFS (loop0): invalid segment: Checksum error in segment payload [ 222.527824][ T6688] NILFS (loop0): trying rollback from an earlier position [ 222.538803][ T6688] NILFS (loop0): recovery complete [ 222.544410][ T6689] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6688] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6688] exit_group(0) = ? [pid 6688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6688, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./800", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./800", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./800/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./800/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./800/binderfs") = 0 umount2("./800/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./800/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./800/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./800/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./800/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./800/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./800") = 0 mkdir("./801", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6690 ./strace-static-x86_64: Process 6690 attached [pid 6690] chdir("./801") = 0 [pid 6690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6690] setpgid(0, 0) = 0 [pid 6690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6690] write(3, "1000", 4) = 4 [pid 6690] close(3) = 0 [pid 6690] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6690] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6690] memfd_create("syzkaller", 0) = 3 [pid 6690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6690] 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"..., 2097152) = 2097152 [pid 6690] munmap(0x7f320ee61000, 2097152) = 0 [pid 6690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6690] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6690] close(3) = 0 [pid 6690] mkdir("./file1", 0777) = 0 [pid 6690] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6690] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6690] chdir("./file1") = 0 [pid 6690] ioctl(4, LOOP_CLR_FD) = 0 [pid 6690] close(4) = 0 [pid 6690] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6690] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6690] ftruncate(5, 33587199) = 0 [ 222.718829][ T6690] loop0: detected capacity change from 0 to 4096 [ 222.732269][ T6690] NILFS (loop0): invalid segment: Checksum error in segment payload [ 222.740311][ T6690] NILFS (loop0): trying rollback from an earlier position [ 222.751532][ T6690] NILFS (loop0): recovery complete [ 222.757436][ T6691] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6690] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6690] exit_group(0) = ? [pid 6690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6690, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./801", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./801", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./801/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./801/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./801/binderfs") = 0 umount2("./801/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./801/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./801/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./801/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./801/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./801/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./801") = 0 mkdir("./802", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6692 ./strace-static-x86_64: Process 6692 attached [pid 6692] chdir("./802") = 0 [pid 6692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6692] setpgid(0, 0) = 0 [pid 6692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6692] write(3, "1000", 4) = 4 [pid 6692] close(3) = 0 [pid 6692] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6692] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6692] memfd_create("syzkaller", 0) = 3 [pid 6692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6692] 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"..., 2097152) = 2097152 [pid 6692] munmap(0x7f320ee61000, 2097152) = 0 [pid 6692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6692] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6692] close(3) = 0 [pid 6692] mkdir("./file1", 0777) = 0 [pid 6692] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6692] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6692] chdir("./file1") = 0 [pid 6692] ioctl(4, LOOP_CLR_FD) = 0 [pid 6692] close(4) = 0 [pid 6692] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6692] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6692] ftruncate(5, 33587199) = 0 [ 222.937847][ T6692] loop0: detected capacity change from 0 to 4096 [ 222.949575][ T6692] NILFS (loop0): invalid segment: Checksum error in segment payload [ 222.957656][ T6692] NILFS (loop0): trying rollback from an earlier position [ 222.968927][ T6692] NILFS (loop0): recovery complete [ 222.974855][ T6693] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6692] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6692] exit_group(0) = ? [pid 6692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6692, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./802", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./802", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./802/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./802/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./802/binderfs") = 0 umount2("./802/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./802/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./802/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./802/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./802/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./802/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./802") = 0 mkdir("./803", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6694 ./strace-static-x86_64: Process 6694 attached [pid 6694] chdir("./803") = 0 [pid 6694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6694] setpgid(0, 0) = 0 [pid 6694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6694] write(3, "1000", 4) = 4 [pid 6694] close(3) = 0 [pid 6694] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6694] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6694] memfd_create("syzkaller", 0) = 3 [pid 6694] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6694] 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"..., 2097152) = 2097152 [pid 6694] munmap(0x7f320ee61000, 2097152) = 0 [pid 6694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6694] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6694] close(3) = 0 [pid 6694] mkdir("./file1", 0777) = 0 [pid 6694] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6694] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6694] chdir("./file1") = 0 [pid 6694] ioctl(4, LOOP_CLR_FD) = 0 [pid 6694] close(4) = 0 [pid 6694] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6694] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6694] ftruncate(5, 33587199) = 0 [ 223.170798][ T6694] loop0: detected capacity change from 0 to 4096 [ 223.183073][ T6694] NILFS (loop0): invalid segment: Checksum error in segment payload [ 223.191317][ T6694] NILFS (loop0): trying rollback from an earlier position [ 223.203029][ T6694] NILFS (loop0): recovery complete [ 223.208646][ T6695] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6694] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6694] exit_group(0) = ? [pid 6694] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6694, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./803", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./803", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./803/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./803/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./803/binderfs") = 0 umount2("./803/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./803/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./803/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./803/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./803/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./803/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./803") = 0 mkdir("./804", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6696 ./strace-static-x86_64: Process 6696 attached [pid 6696] chdir("./804") = 0 [pid 6696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6696] setpgid(0, 0) = 0 [pid 6696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6696] write(3, "1000", 4) = 4 [pid 6696] close(3) = 0 [pid 6696] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6696] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6696] memfd_create("syzkaller", 0) = 3 [pid 6696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6696] 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"..., 2097152) = 2097152 [pid 6696] munmap(0x7f320ee61000, 2097152) = 0 [pid 6696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6696] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6696] close(3) = 0 [pid 6696] mkdir("./file1", 0777) = 0 [pid 6696] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6696] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6696] chdir("./file1") = 0 [pid 6696] ioctl(4, LOOP_CLR_FD) = 0 [pid 6696] close(4) = 0 [pid 6696] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6696] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6696] ftruncate(5, 33587199) = 0 [ 223.393061][ T6696] loop0: detected capacity change from 0 to 4096 [ 223.405860][ T6696] NILFS (loop0): invalid segment: Checksum error in segment payload [ 223.414005][ T6696] NILFS (loop0): trying rollback from an earlier position [ 223.425249][ T6696] NILFS (loop0): recovery complete [ 223.431125][ T6697] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6696] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6696] exit_group(0) = ? [pid 6696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6696, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./804", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./804", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./804/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./804/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./804/binderfs") = 0 umount2("./804/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./804/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./804/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./804/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./804/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./804/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./804") = 0 mkdir("./805", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6698 ./strace-static-x86_64: Process 6698 attached [pid 6698] chdir("./805") = 0 [pid 6698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6698] setpgid(0, 0) = 0 [pid 6698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6698] write(3, "1000", 4) = 4 [pid 6698] close(3) = 0 [pid 6698] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6698] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6698] memfd_create("syzkaller", 0) = 3 [pid 6698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6698] 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"..., 2097152) = 2097152 [pid 6698] munmap(0x7f320ee61000, 2097152) = 0 [pid 6698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6698] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6698] close(3) = 0 [pid 6698] mkdir("./file1", 0777) = 0 [pid 6698] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6698] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6698] chdir("./file1") = 0 [pid 6698] ioctl(4, LOOP_CLR_FD) = 0 [pid 6698] close(4) = 0 [pid 6698] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6698] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6698] ftruncate(5, 33587199) = 0 [ 223.618164][ T6698] loop0: detected capacity change from 0 to 4096 [ 223.630161][ T6698] NILFS (loop0): invalid segment: Checksum error in segment payload [ 223.638214][ T6698] NILFS (loop0): trying rollback from an earlier position [ 223.649586][ T6698] NILFS (loop0): recovery complete [ 223.655502][ T6699] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6698] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6698] exit_group(0) = ? [pid 6698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6698, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./805", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./805", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./805/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./805/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./805/binderfs") = 0 umount2("./805/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./805/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./805/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./805/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./805/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./805/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./805") = 0 mkdir("./806", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6700 ./strace-static-x86_64: Process 6700 attached [pid 6700] chdir("./806") = 0 [pid 6700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6700] setpgid(0, 0) = 0 [pid 6700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6700] write(3, "1000", 4) = 4 [pid 6700] close(3) = 0 [pid 6700] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6700] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6700] memfd_create("syzkaller", 0) = 3 [pid 6700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6700] 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"..., 2097152) = 2097152 [pid 6700] munmap(0x7f320ee61000, 2097152) = 0 [pid 6700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6700] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6700] close(3) = 0 [pid 6700] mkdir("./file1", 0777) = 0 [pid 6700] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6700] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6700] chdir("./file1") = 0 [pid 6700] ioctl(4, LOOP_CLR_FD) = 0 [pid 6700] close(4) = 0 [pid 6700] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6700] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6700] ftruncate(5, 33587199) = 0 [ 223.844626][ T6700] loop0: detected capacity change from 0 to 4096 [ 223.856664][ T6700] NILFS (loop0): invalid segment: Checksum error in segment payload [ 223.864765][ T6700] NILFS (loop0): trying rollback from an earlier position [ 223.876147][ T6700] NILFS (loop0): recovery complete [ 223.881883][ T6701] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6700] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6700] exit_group(0) = ? [pid 6700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6700, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./806", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./806", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./806/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./806/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./806/binderfs") = 0 umount2("./806/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./806/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./806/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./806/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./806/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./806/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./806") = 0 mkdir("./807", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6702 ./strace-static-x86_64: Process 6702 attached [pid 6702] chdir("./807") = 0 [pid 6702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6702] setpgid(0, 0) = 0 [pid 6702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6702] write(3, "1000", 4) = 4 [pid 6702] close(3) = 0 [pid 6702] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6702] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6702] memfd_create("syzkaller", 0) = 3 [pid 6702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6702] 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"..., 2097152) = 2097152 [pid 6702] munmap(0x7f320ee61000, 2097152) = 0 [pid 6702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6702] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6702] close(3) = 0 [pid 6702] mkdir("./file1", 0777) = 0 [pid 6702] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6702] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6702] chdir("./file1") = 0 [pid 6702] ioctl(4, LOOP_CLR_FD) = 0 [pid 6702] close(4) = 0 [pid 6702] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6702] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6702] ftruncate(5, 33587199) = 0 [ 224.074123][ T6702] loop0: detected capacity change from 0 to 4096 [ 224.086105][ T6702] NILFS (loop0): invalid segment: Checksum error in segment payload [ 224.094403][ T6702] NILFS (loop0): trying rollback from an earlier position [ 224.105908][ T6702] NILFS (loop0): recovery complete [ 224.111599][ T6703] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6702] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6702] exit_group(0) = ? [pid 6702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6702, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./807", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./807", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./807/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./807/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./807/binderfs") = 0 umount2("./807/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./807/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./807/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./807/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./807/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./807/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./807") = 0 mkdir("./808", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6704 ./strace-static-x86_64: Process 6704 attached [pid 6704] chdir("./808") = 0 [pid 6704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6704] setpgid(0, 0) = 0 [pid 6704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6704] write(3, "1000", 4) = 4 [pid 6704] close(3) = 0 [pid 6704] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6704] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6704] memfd_create("syzkaller", 0) = 3 [pid 6704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6704] 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"..., 2097152) = 2097152 [pid 6704] munmap(0x7f320ee61000, 2097152) = 0 [pid 6704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6704] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6704] close(3) = 0 [pid 6704] mkdir("./file1", 0777) = 0 [pid 6704] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6704] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6704] chdir("./file1") = 0 [pid 6704] ioctl(4, LOOP_CLR_FD) = 0 [pid 6704] close(4) = 0 [pid 6704] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6704] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6704] ftruncate(5, 33587199) = 0 [ 224.297426][ T6704] loop0: detected capacity change from 0 to 4096 [ 224.310310][ T6704] NILFS (loop0): invalid segment: Checksum error in segment payload [ 224.318336][ T6704] NILFS (loop0): trying rollback from an earlier position [ 224.329959][ T6704] NILFS (loop0): recovery complete [ 224.335706][ T6705] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6704] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6704] exit_group(0) = ? [pid 6704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6704, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./808", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./808", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./808/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./808/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./808/binderfs") = 0 umount2("./808/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./808/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./808/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./808/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./808/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./808/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./808") = 0 mkdir("./809", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6706 ./strace-static-x86_64: Process 6706 attached [pid 6706] chdir("./809") = 0 [pid 6706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6706] setpgid(0, 0) = 0 [pid 6706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6706] write(3, "1000", 4) = 4 [pid 6706] close(3) = 0 [pid 6706] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6706] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6706] memfd_create("syzkaller", 0) = 3 [pid 6706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6706] 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"..., 2097152) = 2097152 [pid 6706] munmap(0x7f320ee61000, 2097152) = 0 [pid 6706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6706] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6706] close(3) = 0 [pid 6706] mkdir("./file1", 0777) = 0 [pid 6706] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6706] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6706] chdir("./file1") = 0 [pid 6706] ioctl(4, LOOP_CLR_FD) = 0 [pid 6706] close(4) = 0 [pid 6706] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6706] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6706] ftruncate(5, 33587199) = 0 [ 224.512850][ T6706] loop0: detected capacity change from 0 to 4096 [ 224.524644][ T6706] NILFS (loop0): invalid segment: Checksum error in segment payload [ 224.532705][ T6706] NILFS (loop0): trying rollback from an earlier position [ 224.543771][ T6706] NILFS (loop0): recovery complete [ 224.549375][ T6707] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6706] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6706] exit_group(0) = ? [pid 6706] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6706, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./809", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./809", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./809/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./809/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./809/binderfs") = 0 umount2("./809/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./809/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./809/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./809/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./809/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./809/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./809") = 0 mkdir("./810", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6708 attached , child_tidptr=0x555555c06690) = 6708 [pid 6708] chdir("./810") = 0 [pid 6708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6708] setpgid(0, 0) = 0 [pid 6708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6708] write(3, "1000", 4) = 4 [pid 6708] close(3) = 0 [pid 6708] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6708] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6708] memfd_create("syzkaller", 0) = 3 [pid 6708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6708] 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"..., 2097152) = 2097152 [pid 6708] munmap(0x7f320ee61000, 2097152) = 0 [pid 6708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6708] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6708] close(3) = 0 [pid 6708] mkdir("./file1", 0777) = 0 [pid 6708] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6708] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6708] chdir("./file1") = 0 [pid 6708] ioctl(4, LOOP_CLR_FD) = 0 [pid 6708] close(4) = 0 [pid 6708] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6708] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6708] ftruncate(5, 33587199) = 0 [ 224.736193][ T6708] loop0: detected capacity change from 0 to 4096 [ 224.748414][ T6708] NILFS (loop0): invalid segment: Checksum error in segment payload [ 224.756675][ T6708] NILFS (loop0): trying rollback from an earlier position [ 224.768303][ T6708] NILFS (loop0): recovery complete [ 224.774114][ T6709] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6708] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6708] exit_group(0) = ? [pid 6708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6708, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./810", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./810", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./810/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./810/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./810/binderfs") = 0 umount2("./810/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./810/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./810/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./810/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./810/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./810/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./810") = 0 mkdir("./811", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6710 ./strace-static-x86_64: Process 6710 attached [pid 6710] chdir("./811") = 0 [pid 6710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6710] setpgid(0, 0) = 0 [pid 6710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6710] write(3, "1000", 4) = 4 [pid 6710] close(3) = 0 [pid 6710] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6710] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6710] memfd_create("syzkaller", 0) = 3 [pid 6710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6710] 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"..., 2097152) = 2097152 [pid 6710] munmap(0x7f320ee61000, 2097152) = 0 [pid 6710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6710] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6710] close(3) = 0 [pid 6710] mkdir("./file1", 0777) = 0 [pid 6710] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6710] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6710] chdir("./file1") = 0 [pid 6710] ioctl(4, LOOP_CLR_FD) = 0 [pid 6710] close(4) = 0 [pid 6710] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6710] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6710] ftruncate(5, 33587199) = 0 [ 224.962251][ T6710] loop0: detected capacity change from 0 to 4096 [ 224.975132][ T6710] NILFS (loop0): invalid segment: Checksum error in segment payload [ 224.983289][ T6710] NILFS (loop0): trying rollback from an earlier position [ 224.994871][ T6710] NILFS (loop0): recovery complete [ 225.000699][ T6711] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6710] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6710] exit_group(0) = ? [pid 6710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6710, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./811", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./811", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./811/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./811/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./811/binderfs") = 0 umount2("./811/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./811/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./811/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./811/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./811/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./811/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./811") = 0 mkdir("./812", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6712 ./strace-static-x86_64: Process 6712 attached [pid 6712] chdir("./812") = 0 [pid 6712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6712] setpgid(0, 0) = 0 [pid 6712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6712] write(3, "1000", 4) = 4 [pid 6712] close(3) = 0 [pid 6712] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6712] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6712] memfd_create("syzkaller", 0) = 3 [pid 6712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6712] 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"..., 2097152) = 2097152 [pid 6712] munmap(0x7f320ee61000, 2097152) = 0 [pid 6712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6712] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6712] close(3) = 0 [pid 6712] mkdir("./file1", 0777) = 0 [pid 6712] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6712] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6712] chdir("./file1") = 0 [pid 6712] ioctl(4, LOOP_CLR_FD) = 0 [pid 6712] close(4) = 0 [pid 6712] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6712] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6712] ftruncate(5, 33587199) = 0 [ 225.193522][ T6712] loop0: detected capacity change from 0 to 4096 [ 225.205878][ T6712] NILFS (loop0): invalid segment: Checksum error in segment payload [ 225.213908][ T6712] NILFS (loop0): trying rollback from an earlier position [ 225.225592][ T6712] NILFS (loop0): recovery complete [ 225.231259][ T6713] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6712] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6712] exit_group(0) = ? [pid 6712] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6712, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./812", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./812", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./812/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./812/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./812/binderfs") = 0 umount2("./812/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./812/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./812/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./812/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./812/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./812/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./812") = 0 mkdir("./813", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6714 ./strace-static-x86_64: Process 6714 attached [pid 6714] chdir("./813") = 0 [pid 6714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6714] setpgid(0, 0) = 0 [pid 6714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6714] write(3, "1000", 4) = 4 [pid 6714] close(3) = 0 [pid 6714] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6714] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6714] memfd_create("syzkaller", 0) = 3 [pid 6714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6714] 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"..., 2097152) = 2097152 [pid 6714] munmap(0x7f320ee61000, 2097152) = 0 [pid 6714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6714] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6714] close(3) = 0 [pid 6714] mkdir("./file1", 0777) = 0 [pid 6714] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6714] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6714] chdir("./file1") = 0 [pid 6714] ioctl(4, LOOP_CLR_FD) = 0 [pid 6714] close(4) = 0 [pid 6714] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6714] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6714] ftruncate(5, 33587199) = 0 [ 225.424851][ T6714] loop0: detected capacity change from 0 to 4096 [ 225.436897][ T6714] NILFS (loop0): invalid segment: Checksum error in segment payload [ 225.444951][ T6714] NILFS (loop0): trying rollback from an earlier position [ 225.456058][ T6714] NILFS (loop0): recovery complete [ 225.461888][ T6715] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6714] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6714] exit_group(0) = ? [pid 6714] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6714, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./813", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./813", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./813/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./813/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./813/binderfs") = 0 umount2("./813/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./813/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./813/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./813/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./813/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./813/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./813") = 0 mkdir("./814", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6716 ./strace-static-x86_64: Process 6716 attached [pid 6716] chdir("./814") = 0 [pid 6716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6716] setpgid(0, 0) = 0 [pid 6716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6716] write(3, "1000", 4) = 4 [pid 6716] close(3) = 0 [pid 6716] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6716] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6716] memfd_create("syzkaller", 0) = 3 [pid 6716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6716] 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"..., 2097152) = 2097152 [pid 6716] munmap(0x7f320ee61000, 2097152) = 0 [pid 6716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6716] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6716] close(3) = 0 [pid 6716] mkdir("./file1", 0777) = 0 [pid 6716] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6716] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6716] chdir("./file1") = 0 [pid 6716] ioctl(4, LOOP_CLR_FD) = 0 [pid 6716] close(4) = 0 [pid 6716] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6716] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6716] ftruncate(5, 33587199) = 0 [ 225.663458][ T6716] loop0: detected capacity change from 0 to 4096 [ 225.674737][ T6716] NILFS (loop0): invalid segment: Checksum error in segment payload [ 225.682954][ T6716] NILFS (loop0): trying rollback from an earlier position [ 225.695091][ T6716] NILFS (loop0): recovery complete [ 225.701056][ T6717] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6716] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6716] exit_group(0) = ? [pid 6716] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6716, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./814", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./814", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./814/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./814/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./814/binderfs") = 0 umount2("./814/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./814/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./814/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./814/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./814/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./814/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./814") = 0 mkdir("./815", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6718 ./strace-static-x86_64: Process 6718 attached [pid 6718] chdir("./815") = 0 [pid 6718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6718] setpgid(0, 0) = 0 [pid 6718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6718] write(3, "1000", 4) = 4 [pid 6718] close(3) = 0 [pid 6718] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6718] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6718] memfd_create("syzkaller", 0) = 3 [pid 6718] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6718] 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"..., 2097152) = 2097152 [pid 6718] munmap(0x7f320ee61000, 2097152) = 0 [pid 6718] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6718] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6718] close(3) = 0 [pid 6718] mkdir("./file1", 0777) = 0 [pid 6718] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6718] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6718] chdir("./file1") = 0 [pid 6718] ioctl(4, LOOP_CLR_FD) = 0 [pid 6718] close(4) = 0 [pid 6718] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6718] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6718] ftruncate(5, 33587199) = 0 [ 225.894822][ T6718] loop0: detected capacity change from 0 to 4096 [ 225.907322][ T6718] NILFS (loop0): invalid segment: Checksum error in segment payload [ 225.915406][ T6718] NILFS (loop0): trying rollback from an earlier position [ 225.926984][ T6718] NILFS (loop0): recovery complete [ 225.932815][ T6719] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6718] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6718] exit_group(0) = ? [pid 6718] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6718, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./815", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./815", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./815/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./815/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./815/binderfs") = 0 umount2("./815/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./815/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./815/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./815/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./815/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./815/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./815") = 0 mkdir("./816", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6720 ./strace-static-x86_64: Process 6720 attached [pid 6720] chdir("./816") = 0 [pid 6720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6720] setpgid(0, 0) = 0 [pid 6720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6720] write(3, "1000", 4) = 4 [pid 6720] close(3) = 0 [pid 6720] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6720] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6720] memfd_create("syzkaller", 0) = 3 [pid 6720] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6720] 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"..., 2097152) = 2097152 [pid 6720] munmap(0x7f320ee61000, 2097152) = 0 [pid 6720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6720] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6720] close(3) = 0 [pid 6720] mkdir("./file1", 0777) = 0 [pid 6720] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6720] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6720] chdir("./file1") = 0 [pid 6720] ioctl(4, LOOP_CLR_FD) = 0 [pid 6720] close(4) = 0 [pid 6720] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6720] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6720] ftruncate(5, 33587199) = 0 [ 226.123219][ T6720] loop0: detected capacity change from 0 to 4096 [ 226.135472][ T6720] NILFS (loop0): invalid segment: Checksum error in segment payload [ 226.143651][ T6720] NILFS (loop0): trying rollback from an earlier position [ 226.155159][ T6720] NILFS (loop0): recovery complete [ 226.160878][ T6721] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6720] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6720] exit_group(0) = ? [pid 6720] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6720, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./816", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./816", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./816/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./816/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./816/binderfs") = 0 umount2("./816/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./816/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./816/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./816/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./816/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./816/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./816") = 0 mkdir("./817", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6722 ./strace-static-x86_64: Process 6722 attached [pid 6722] chdir("./817") = 0 [pid 6722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6722] setpgid(0, 0) = 0 [pid 6722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6722] write(3, "1000", 4) = 4 [pid 6722] close(3) = 0 [pid 6722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6722] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6722] memfd_create("syzkaller", 0) = 3 [pid 6722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6722] 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"..., 2097152) = 2097152 [pid 6722] munmap(0x7f320ee61000, 2097152) = 0 [pid 6722] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6722] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6722] close(3) = 0 [pid 6722] mkdir("./file1", 0777) = 0 [pid 6722] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6722] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6722] chdir("./file1") = 0 [pid 6722] ioctl(4, LOOP_CLR_FD) = 0 [pid 6722] close(4) = 0 [pid 6722] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6722] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6722] ftruncate(5, 33587199) = 0 [ 226.351809][ T6722] loop0: detected capacity change from 0 to 4096 [ 226.363824][ T6722] NILFS (loop0): invalid segment: Checksum error in segment payload [ 226.371969][ T6722] NILFS (loop0): trying rollback from an earlier position [ 226.382576][ T6722] NILFS (loop0): recovery complete [ 226.388420][ T6723] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6722] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6722] exit_group(0) = ? [pid 6722] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6722, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./817", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./817", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./817/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./817/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./817/binderfs") = 0 umount2("./817/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./817/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./817/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./817/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./817/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./817/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./817") = 0 mkdir("./818", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6724 attached , child_tidptr=0x555555c06690) = 6724 [pid 6724] chdir("./818") = 0 [pid 6724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6724] setpgid(0, 0) = 0 [pid 6724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6724] write(3, "1000", 4) = 4 [pid 6724] close(3) = 0 [pid 6724] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6724] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6724] memfd_create("syzkaller", 0) = 3 [pid 6724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6724] 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"..., 2097152) = 2097152 [pid 6724] munmap(0x7f320ee61000, 2097152) = 0 [pid 6724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6724] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6724] close(3) = 0 [pid 6724] mkdir("./file1", 0777) = 0 [ 226.581762][ T6724] loop0: detected capacity change from 0 to 4096 [ 226.595846][ T6724] NILFS (loop0): invalid segment: Checksum error in segment payload [ 226.604019][ T6724] NILFS (loop0): trying rollback from an earlier position [ 226.615710][ T6724] NILFS (loop0): recovery complete [ 226.621602][ T6725] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6724] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6724] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6724] chdir("./file1") = 0 [pid 6724] ioctl(4, LOOP_CLR_FD) = 0 [pid 6724] close(4) = 0 [pid 6724] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6724] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6724] ftruncate(5, 33587199) = 0 [pid 6724] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6724] exit_group(0) = ? [pid 6724] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6724, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./818", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./818", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./818/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./818/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./818/binderfs") = 0 umount2("./818/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./818/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./818/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./818/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./818/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./818/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./818") = 0 mkdir("./819", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6726 attached , child_tidptr=0x555555c06690) = 6726 [pid 6726] chdir("./819") = 0 [pid 6726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6726] setpgid(0, 0) = 0 [pid 6726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6726] write(3, "1000", 4) = 4 [pid 6726] close(3) = 0 [pid 6726] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6726] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6726] memfd_create("syzkaller", 0) = 3 [pid 6726] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6726] 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"..., 2097152) = 2097152 [pid 6726] munmap(0x7f320ee61000, 2097152) = 0 [pid 6726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6726] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6726] close(3) = 0 [pid 6726] mkdir("./file1", 0777) = 0 [pid 6726] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6726] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6726] chdir("./file1") = 0 [pid 6726] ioctl(4, LOOP_CLR_FD) = 0 [pid 6726] close(4) = 0 [pid 6726] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6726] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6726] ftruncate(5, 33587199) = 0 [ 226.822793][ T6726] loop0: detected capacity change from 0 to 4096 [ 226.834459][ T6726] NILFS (loop0): invalid segment: Checksum error in segment payload [ 226.842671][ T6726] NILFS (loop0): trying rollback from an earlier position [ 226.854649][ T6726] NILFS (loop0): recovery complete [ 226.860544][ T6727] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6726] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6726] exit_group(0) = ? [pid 6726] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6726, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./819", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./819", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./819/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./819/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./819/binderfs") = 0 umount2("./819/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./819/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./819/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./819/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./819/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./819/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./819") = 0 mkdir("./820", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6728 ./strace-static-x86_64: Process 6728 attached [pid 6728] chdir("./820") = 0 [pid 6728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6728] setpgid(0, 0) = 0 [pid 6728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6728] write(3, "1000", 4) = 4 [pid 6728] close(3) = 0 [pid 6728] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6728] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6728] memfd_create("syzkaller", 0) = 3 [pid 6728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6728] 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"..., 2097152) = 2097152 [pid 6728] munmap(0x7f320ee61000, 2097152) = 0 [pid 6728] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6728] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6728] close(3) = 0 [pid 6728] mkdir("./file1", 0777) = 0 [pid 6728] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6728] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6728] chdir("./file1") = 0 [pid 6728] ioctl(4, LOOP_CLR_FD) = 0 [pid 6728] close(4) = 0 [pid 6728] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6728] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6728] ftruncate(5, 33587199) = 0 [ 227.056089][ T6728] loop0: detected capacity change from 0 to 4096 [ 227.068408][ T6728] NILFS (loop0): invalid segment: Checksum error in segment payload [ 227.076562][ T6728] NILFS (loop0): trying rollback from an earlier position [ 227.088088][ T6728] NILFS (loop0): recovery complete [ 227.094055][ T6729] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6728] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6728] exit_group(0) = ? [pid 6728] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6728, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./820", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./820", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./820/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./820/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./820/binderfs") = 0 umount2("./820/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./820/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./820/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./820/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./820/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./820/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./820") = 0 mkdir("./821", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6730 attached , child_tidptr=0x555555c06690) = 6730 [pid 6730] chdir("./821") = 0 [pid 6730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6730] setpgid(0, 0) = 0 [pid 6730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6730] write(3, "1000", 4) = 4 [pid 6730] close(3) = 0 [pid 6730] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6730] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6730] memfd_create("syzkaller", 0) = 3 [pid 6730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6730] 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"..., 2097152) = 2097152 [pid 6730] munmap(0x7f320ee61000, 2097152) = 0 [pid 6730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6730] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6730] close(3) = 0 [pid 6730] mkdir("./file1", 0777) = 0 [pid 6730] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6730] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6730] chdir("./file1") = 0 [pid 6730] ioctl(4, LOOP_CLR_FD) = 0 [pid 6730] close(4) = 0 [pid 6730] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6730] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6730] ftruncate(5, 33587199) = 0 [ 227.288545][ T6730] loop0: detected capacity change from 0 to 4096 [ 227.301639][ T6730] NILFS (loop0): invalid segment: Checksum error in segment payload [ 227.309655][ T6730] NILFS (loop0): trying rollback from an earlier position [ 227.321128][ T6730] NILFS (loop0): recovery complete [ 227.326989][ T6731] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6730] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6730] exit_group(0) = ? [pid 6730] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6730, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./821", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./821", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./821/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./821/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./821/binderfs") = 0 umount2("./821/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./821/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./821/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./821/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./821/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./821/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./821") = 0 mkdir("./822", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6732 attached [pid 6732] chdir("./822") = 0 [pid 6732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6732] setpgid(0, 0) = 0 [pid 6732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6732 [pid 6732] <... openat resumed>) = 3 [pid 6732] write(3, "1000", 4) = 4 [pid 6732] close(3) = 0 [pid 6732] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6732] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6732] memfd_create("syzkaller", 0) = 3 [pid 6732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6732] 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"..., 2097152) = 2097152 [pid 6732] munmap(0x7f320ee61000, 2097152) = 0 [pid 6732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6732] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6732] close(3) = 0 [pid 6732] mkdir("./file1", 0777) = 0 [pid 6732] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6732] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6732] chdir("./file1") = 0 [pid 6732] ioctl(4, LOOP_CLR_FD) = 0 [pid 6732] close(4) = 0 [pid 6732] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6732] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6732] ftruncate(5, 33587199) = 0 [ 227.505974][ T6732] loop0: detected capacity change from 0 to 4096 [ 227.518356][ T6732] NILFS (loop0): invalid segment: Checksum error in segment payload [ 227.526426][ T6732] NILFS (loop0): trying rollback from an earlier position [ 227.537761][ T6732] NILFS (loop0): recovery complete [ 227.543656][ T6733] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6732] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6732] exit_group(0) = ? [pid 6732] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6732, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./822", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./822", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./822/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./822/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./822/binderfs") = 0 umount2("./822/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./822/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./822/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./822/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./822/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./822/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./822") = 0 mkdir("./823", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6734 ./strace-static-x86_64: Process 6734 attached [pid 6734] chdir("./823") = 0 [pid 6734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6734] setpgid(0, 0) = 0 [pid 6734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6734] write(3, "1000", 4) = 4 [pid 6734] close(3) = 0 [pid 6734] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6734] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6734] memfd_create("syzkaller", 0) = 3 [pid 6734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6734] 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"..., 2097152) = 2097152 [pid 6734] munmap(0x7f320ee61000, 2097152) = 0 [pid 6734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6734] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6734] close(3) = 0 [pid 6734] mkdir("./file1", 0777) = 0 [pid 6734] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6734] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6734] chdir("./file1") = 0 [pid 6734] ioctl(4, LOOP_CLR_FD) = 0 [pid 6734] close(4) = 0 [pid 6734] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6734] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6734] ftruncate(5, 33587199) = 0 [ 227.735847][ T6734] loop0: detected capacity change from 0 to 4096 [ 227.748282][ T6734] NILFS (loop0): invalid segment: Checksum error in segment payload [ 227.756461][ T6734] NILFS (loop0): trying rollback from an earlier position [ 227.767865][ T6734] NILFS (loop0): recovery complete [ 227.773667][ T6735] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6734] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6734] exit_group(0) = ? [pid 6734] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6734, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./823", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./823", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./823/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./823/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./823/binderfs") = 0 umount2("./823/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./823/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./823/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./823/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./823/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./823/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./823") = 0 mkdir("./824", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6736 ./strace-static-x86_64: Process 6736 attached [pid 6736] chdir("./824") = 0 [pid 6736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6736] setpgid(0, 0) = 0 [pid 6736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6736] write(3, "1000", 4) = 4 [pid 6736] close(3) = 0 [pid 6736] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6736] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6736] memfd_create("syzkaller", 0) = 3 [pid 6736] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6736] 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"..., 2097152) = 2097152 [pid 6736] munmap(0x7f320ee61000, 2097152) = 0 [pid 6736] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6736] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6736] close(3) = 0 [pid 6736] mkdir("./file1", 0777) = 0 [pid 6736] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6736] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6736] chdir("./file1") = 0 [pid 6736] ioctl(4, LOOP_CLR_FD) = 0 [pid 6736] close(4) = 0 [pid 6736] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6736] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6736] ftruncate(5, 33587199) = 0 [ 227.964431][ T6736] loop0: detected capacity change from 0 to 4096 [ 227.977012][ T6736] NILFS (loop0): invalid segment: Checksum error in segment payload [ 227.985287][ T6736] NILFS (loop0): trying rollback from an earlier position [ 227.996904][ T6736] NILFS (loop0): recovery complete [ 228.002511][ T6737] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6736] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6736] exit_group(0) = ? [pid 6736] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6736, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./824", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./824", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./824/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./824/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./824/binderfs") = 0 umount2("./824/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./824/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./824/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./824/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./824/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./824/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./824") = 0 mkdir("./825", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6738 attached , child_tidptr=0x555555c06690) = 6738 [pid 6738] chdir("./825") = 0 [pid 6738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6738] setpgid(0, 0) = 0 [pid 6738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6738] write(3, "1000", 4) = 4 [pid 6738] close(3) = 0 [pid 6738] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6738] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6738] memfd_create("syzkaller", 0) = 3 [pid 6738] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6738] 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"..., 2097152) = 2097152 [pid 6738] munmap(0x7f320ee61000, 2097152) = 0 [pid 6738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6738] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6738] close(3) = 0 [pid 6738] mkdir("./file1", 0777) = 0 [pid 6738] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6738] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6738] chdir("./file1") = 0 [pid 6738] ioctl(4, LOOP_CLR_FD) = 0 [pid 6738] close(4) = 0 [pid 6738] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6738] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6738] ftruncate(5, 33587199) = 0 [ 228.188573][ T6738] loop0: detected capacity change from 0 to 4096 [ 228.200870][ T6738] NILFS (loop0): invalid segment: Checksum error in segment payload [ 228.208948][ T6738] NILFS (loop0): trying rollback from an earlier position [ 228.220722][ T6738] NILFS (loop0): recovery complete [ 228.226395][ T6739] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6738] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6738] exit_group(0) = ? [pid 6738] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6738, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./825", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./825", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./825/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./825/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./825/binderfs") = 0 umount2("./825/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./825/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./825/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./825/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./825/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./825/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./825") = 0 mkdir("./826", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6740 attached , child_tidptr=0x555555c06690) = 6740 [pid 6740] chdir("./826") = 0 [pid 6740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6740] setpgid(0, 0) = 0 [pid 6740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6740] write(3, "1000", 4) = 4 [pid 6740] close(3) = 0 [pid 6740] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6740] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6740] memfd_create("syzkaller", 0) = 3 [pid 6740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6740] 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"..., 2097152) = 2097152 [pid 6740] munmap(0x7f320ee61000, 2097152) = 0 [pid 6740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6740] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6740] close(3) = 0 [pid 6740] mkdir("./file1", 0777) = 0 [pid 6740] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6740] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6740] chdir("./file1") = 0 [pid 6740] ioctl(4, LOOP_CLR_FD) = 0 [pid 6740] close(4) = 0 [pid 6740] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6740] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6740] ftruncate(5, 33587199) = 0 [ 228.417833][ T6740] loop0: detected capacity change from 0 to 4096 [ 228.430585][ T6740] NILFS (loop0): invalid segment: Checksum error in segment payload [ 228.438785][ T6740] NILFS (loop0): trying rollback from an earlier position [ 228.449686][ T6740] NILFS (loop0): recovery complete [ 228.455524][ T6741] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6740] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6740] exit_group(0) = ? [pid 6740] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6740, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./826", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./826", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./826/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./826/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./826/binderfs") = 0 umount2("./826/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./826/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./826/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./826/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./826/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./826/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./826") = 0 mkdir("./827", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6742 ./strace-static-x86_64: Process 6742 attached [pid 6742] chdir("./827") = 0 [pid 6742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6742] setpgid(0, 0) = 0 [pid 6742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6742] write(3, "1000", 4) = 4 [pid 6742] close(3) = 0 [pid 6742] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6742] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6742] memfd_create("syzkaller", 0) = 3 [pid 6742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6742] 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"..., 2097152) = 2097152 [pid 6742] munmap(0x7f320ee61000, 2097152) = 0 [pid 6742] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6742] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6742] close(3) = 0 [pid 6742] mkdir("./file1", 0777) = 0 [pid 6742] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6742] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6742] chdir("./file1") = 0 [pid 6742] ioctl(4, LOOP_CLR_FD) = 0 [pid 6742] close(4) = 0 [pid 6742] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6742] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6742] ftruncate(5, 33587199) = 0 [ 228.649419][ T6742] loop0: detected capacity change from 0 to 4096 [ 228.662607][ T6742] NILFS (loop0): invalid segment: Checksum error in segment payload [ 228.670673][ T6742] NILFS (loop0): trying rollback from an earlier position [ 228.682098][ T6742] NILFS (loop0): recovery complete [ 228.687773][ T6743] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6742] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6742] exit_group(0) = ? [pid 6742] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6742, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./827", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./827", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./827/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./827/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./827/binderfs") = 0 umount2("./827/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./827/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./827/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./827/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./827/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./827/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./827") = 0 mkdir("./828", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6744 ./strace-static-x86_64: Process 6744 attached [pid 6744] chdir("./828") = 0 [pid 6744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6744] setpgid(0, 0) = 0 [pid 6744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6744] write(3, "1000", 4) = 4 [pid 6744] close(3) = 0 [pid 6744] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6744] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6744] memfd_create("syzkaller", 0) = 3 [pid 6744] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6744] 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"..., 2097152) = 2097152 [pid 6744] munmap(0x7f320ee61000, 2097152) = 0 [pid 6744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6744] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6744] close(3) = 0 [pid 6744] mkdir("./file1", 0777) = 0 [pid 6744] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6744] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6744] chdir("./file1") = 0 [pid 6744] ioctl(4, LOOP_CLR_FD) = 0 [pid 6744] close(4) = 0 [pid 6744] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6744] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6744] ftruncate(5, 33587199) = 0 [ 228.875792][ T6744] loop0: detected capacity change from 0 to 4096 [ 228.887852][ T6744] NILFS (loop0): invalid segment: Checksum error in segment payload [ 228.896147][ T6744] NILFS (loop0): trying rollback from an earlier position [ 228.907367][ T6744] NILFS (loop0): recovery complete [ 228.913075][ T6745] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6744] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6744] exit_group(0) = ? [pid 6744] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6744, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./828", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./828", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./828/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./828/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./828/binderfs") = 0 umount2("./828/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./828/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./828/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./828/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./828/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./828/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./828") = 0 mkdir("./829", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6746 ./strace-static-x86_64: Process 6746 attached [pid 6746] chdir("./829") = 0 [pid 6746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6746] setpgid(0, 0) = 0 [pid 6746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6746] write(3, "1000", 4) = 4 [pid 6746] close(3) = 0 [pid 6746] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6746] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6746] memfd_create("syzkaller", 0) = 3 [pid 6746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6746] 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"..., 2097152) = 2097152 [pid 6746] munmap(0x7f320ee61000, 2097152) = 0 [pid 6746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6746] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6746] close(3) = 0 [pid 6746] mkdir("./file1", 0777) = 0 [pid 6746] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6746] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6746] chdir("./file1") = 0 [pid 6746] ioctl(4, LOOP_CLR_FD) = 0 [pid 6746] close(4) = 0 [pid 6746] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6746] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6746] ftruncate(5, 33587199) = 0 [ 229.101424][ T6746] loop0: detected capacity change from 0 to 4096 [ 229.113724][ T6746] NILFS (loop0): invalid segment: Checksum error in segment payload [ 229.121986][ T6746] NILFS (loop0): trying rollback from an earlier position [ 229.132914][ T6746] NILFS (loop0): recovery complete [ 229.138633][ T6747] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6746] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6746] exit_group(0) = ? [pid 6746] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6746, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./829", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./829", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./829/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./829/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./829/binderfs") = 0 umount2("./829/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./829/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./829/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./829/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./829/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./829/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./829") = 0 mkdir("./830", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6748 attached , child_tidptr=0x555555c06690) = 6748 [pid 6748] chdir("./830") = 0 [pid 6748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6748] setpgid(0, 0) = 0 [pid 6748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6748] write(3, "1000", 4) = 4 [pid 6748] close(3) = 0 [pid 6748] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6748] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6748] memfd_create("syzkaller", 0) = 3 [pid 6748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6748] 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"..., 2097152) = 2097152 [pid 6748] munmap(0x7f320ee61000, 2097152) = 0 [pid 6748] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6748] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6748] close(3) = 0 [pid 6748] mkdir("./file1", 0777) = 0 [pid 6748] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6748] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6748] chdir("./file1") = 0 [pid 6748] ioctl(4, LOOP_CLR_FD) = 0 [pid 6748] close(4) = 0 [pid 6748] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6748] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6748] ftruncate(5, 33587199) = 0 [ 229.326705][ T6748] loop0: detected capacity change from 0 to 4096 [ 229.339523][ T6748] NILFS (loop0): invalid segment: Checksum error in segment payload [ 229.347575][ T6748] NILFS (loop0): trying rollback from an earlier position [ 229.358730][ T6748] NILFS (loop0): recovery complete [ 229.364468][ T6749] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6748] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6748] exit_group(0) = ? [pid 6748] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6748, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./830", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./830", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./830/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./830/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./830/binderfs") = 0 umount2("./830/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./830/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./830/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./830/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./830/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./830/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./830") = 0 mkdir("./831", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6750 attached [pid 6750] chdir("./831") = 0 [pid 6750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6750] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6750 [pid 6750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6750] write(3, "1000", 4) = 4 [pid 6750] close(3) = 0 [pid 6750] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6750] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6750] memfd_create("syzkaller", 0) = 3 [pid 6750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6750] 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"..., 2097152) = 2097152 [pid 6750] munmap(0x7f320ee61000, 2097152) = 0 [pid 6750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6750] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6750] close(3) = 0 [pid 6750] mkdir("./file1", 0777) = 0 [pid 6750] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6750] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6750] chdir("./file1") = 0 [pid 6750] ioctl(4, LOOP_CLR_FD) = 0 [pid 6750] close(4) = 0 [pid 6750] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6750] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6750] ftruncate(5, 33587199) = 0 [ 229.558129][ T6750] loop0: detected capacity change from 0 to 4096 [ 229.570599][ T6750] NILFS (loop0): invalid segment: Checksum error in segment payload [ 229.578607][ T6750] NILFS (loop0): trying rollback from an earlier position [ 229.590631][ T6750] NILFS (loop0): recovery complete [ 229.596338][ T6751] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6750] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6750] exit_group(0) = ? [pid 6750] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6750, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./831", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./831", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./831/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./831/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./831/binderfs") = 0 umount2("./831/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./831/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./831/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./831/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./831/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./831/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./831") = 0 mkdir("./832", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6752 attached , child_tidptr=0x555555c06690) = 6752 [pid 6752] chdir("./832") = 0 [pid 6752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6752] setpgid(0, 0) = 0 [pid 6752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6752] write(3, "1000", 4) = 4 [pid 6752] close(3) = 0 [pid 6752] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6752] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6752] memfd_create("syzkaller", 0) = 3 [pid 6752] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6752] 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"..., 2097152) = 2097152 [pid 6752] munmap(0x7f320ee61000, 2097152) = 0 [pid 6752] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6752] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6752] close(3) = 0 [pid 6752] mkdir("./file1", 0777) = 0 [pid 6752] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6752] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6752] chdir("./file1") = 0 [pid 6752] ioctl(4, LOOP_CLR_FD) = 0 [pid 6752] close(4) = 0 [pid 6752] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6752] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6752] ftruncate(5, 33587199) = 0 [ 229.786235][ T6752] loop0: detected capacity change from 0 to 4096 [ 229.798586][ T6752] NILFS (loop0): invalid segment: Checksum error in segment payload [ 229.807057][ T6752] NILFS (loop0): trying rollback from an earlier position [ 229.818659][ T6752] NILFS (loop0): recovery complete [ 229.824584][ T6753] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6752] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6752] exit_group(0) = ? [pid 6752] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6752, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./832", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./832", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./832/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./832/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./832/binderfs") = 0 umount2("./832/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./832/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./832/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./832/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./832/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./832/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./832") = 0 mkdir("./833", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6754 ./strace-static-x86_64: Process 6754 attached [pid 6754] chdir("./833") = 0 [pid 6754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6754] setpgid(0, 0) = 0 [pid 6754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6754] write(3, "1000", 4) = 4 [pid 6754] close(3) = 0 [pid 6754] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6754] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6754] memfd_create("syzkaller", 0) = 3 [pid 6754] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6754] 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"..., 2097152) = 2097152 [pid 6754] munmap(0x7f320ee61000, 2097152) = 0 [pid 6754] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6754] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6754] close(3) = 0 [pid 6754] mkdir("./file1", 0777) = 0 [pid 6754] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6754] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6754] chdir("./file1") = 0 [pid 6754] ioctl(4, LOOP_CLR_FD) = 0 [pid 6754] close(4) = 0 [pid 6754] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6754] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6754] ftruncate(5, 33587199) = 0 [ 230.014233][ T6754] loop0: detected capacity change from 0 to 4096 [ 230.026918][ T6754] NILFS (loop0): invalid segment: Checksum error in segment payload [ 230.035002][ T6754] NILFS (loop0): trying rollback from an earlier position [ 230.046062][ T6754] NILFS (loop0): recovery complete [ 230.051777][ T6755] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6754] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6754] exit_group(0) = ? [pid 6754] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6754, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./833", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./833", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./833/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./833/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./833/binderfs") = 0 umount2("./833/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./833/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./833/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./833/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./833/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./833/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./833") = 0 mkdir("./834", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6756 ./strace-static-x86_64: Process 6756 attached [pid 6756] chdir("./834") = 0 [pid 6756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6756] setpgid(0, 0) = 0 [pid 6756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6756] write(3, "1000", 4) = 4 [pid 6756] close(3) = 0 [pid 6756] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6756] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6756] memfd_create("syzkaller", 0) = 3 [pid 6756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6756] 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"..., 2097152) = 2097152 [pid 6756] munmap(0x7f320ee61000, 2097152) = 0 [pid 6756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6756] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6756] close(3) = 0 [pid 6756] mkdir("./file1", 0777) = 0 [pid 6756] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6756] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6756] chdir("./file1") = 0 [pid 6756] ioctl(4, LOOP_CLR_FD) = 0 [pid 6756] close(4) = 0 [pid 6756] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6756] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6756] ftruncate(5, 33587199) = 0 [ 230.242675][ T6756] loop0: detected capacity change from 0 to 4096 [ 230.254640][ T6756] NILFS (loop0): invalid segment: Checksum error in segment payload [ 230.262651][ T6756] NILFS (loop0): trying rollback from an earlier position [ 230.273731][ T6756] NILFS (loop0): recovery complete [ 230.279546][ T6757] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6756] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6756] exit_group(0) = ? [pid 6756] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6756, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./834", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./834", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./834/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./834/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./834/binderfs") = 0 umount2("./834/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./834/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./834/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./834/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./834/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./834/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./834") = 0 mkdir("./835", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6758 ./strace-static-x86_64: Process 6758 attached [pid 6758] chdir("./835") = 0 [pid 6758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6758] setpgid(0, 0) = 0 [pid 6758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6758] write(3, "1000", 4) = 4 [pid 6758] close(3) = 0 [pid 6758] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6758] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6758] memfd_create("syzkaller", 0) = 3 [pid 6758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6758] 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"..., 2097152) = 2097152 [pid 6758] munmap(0x7f320ee61000, 2097152) = 0 [pid 6758] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6758] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6758] close(3) = 0 [pid 6758] mkdir("./file1", 0777) = 0 [pid 6758] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6758] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6758] chdir("./file1") = 0 [pid 6758] ioctl(4, LOOP_CLR_FD) = 0 [pid 6758] close(4) = 0 [pid 6758] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6758] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6758] ftruncate(5, 33587199) = 0 [ 230.467457][ T6758] loop0: detected capacity change from 0 to 4096 [ 230.479778][ T6758] NILFS (loop0): invalid segment: Checksum error in segment payload [ 230.487805][ T6758] NILFS (loop0): trying rollback from an earlier position [ 230.499189][ T6758] NILFS (loop0): recovery complete [ 230.504982][ T6759] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6758] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6758] exit_group(0) = ? [pid 6758] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6758, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./835", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./835", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./835/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./835/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./835/binderfs") = 0 umount2("./835/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./835/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./835/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./835/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./835/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./835/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./835") = 0 mkdir("./836", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6760 attached , child_tidptr=0x555555c06690) = 6760 [pid 6760] chdir("./836") = 0 [pid 6760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6760] setpgid(0, 0) = 0 [pid 6760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6760] write(3, "1000", 4) = 4 [pid 6760] close(3) = 0 [pid 6760] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6760] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6760] memfd_create("syzkaller", 0) = 3 [pid 6760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6760] 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"..., 2097152) = 2097152 [pid 6760] munmap(0x7f320ee61000, 2097152) = 0 [pid 6760] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6760] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6760] close(3) = 0 [pid 6760] mkdir("./file1", 0777) = 0 [pid 6760] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6760] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6760] chdir("./file1") = 0 [pid 6760] ioctl(4, LOOP_CLR_FD) = 0 [pid 6760] close(4) = 0 [pid 6760] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6760] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6760] ftruncate(5, 33587199) = 0 [ 230.694481][ T6760] loop0: detected capacity change from 0 to 4096 [ 230.706610][ T6760] NILFS (loop0): invalid segment: Checksum error in segment payload [ 230.714817][ T6760] NILFS (loop0): trying rollback from an earlier position [ 230.726455][ T6760] NILFS (loop0): recovery complete [ 230.732138][ T6761] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6760] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6760] exit_group(0) = ? [pid 6760] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6760, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./836", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./836", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./836/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./836/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./836/binderfs") = 0 umount2("./836/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./836/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./836/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./836/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./836/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./836/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./836") = 0 mkdir("./837", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6762 ./strace-static-x86_64: Process 6762 attached [pid 6762] chdir("./837") = 0 [pid 6762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6762] setpgid(0, 0) = 0 [pid 6762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6762] write(3, "1000", 4) = 4 [pid 6762] close(3) = 0 [pid 6762] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6762] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6762] memfd_create("syzkaller", 0) = 3 [pid 6762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6762] 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"..., 2097152) = 2097152 [pid 6762] munmap(0x7f320ee61000, 2097152) = 0 [pid 6762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6762] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6762] close(3) = 0 [pid 6762] mkdir("./file1", 0777) = 0 [pid 6762] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6762] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6762] chdir("./file1") = 0 [pid 6762] ioctl(4, LOOP_CLR_FD) = 0 [pid 6762] close(4) = 0 [pid 6762] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6762] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6762] ftruncate(5, 33587199) = 0 [ 230.924968][ T6762] loop0: detected capacity change from 0 to 4096 [ 230.936571][ T6762] NILFS (loop0): invalid segment: Checksum error in segment payload [ 230.944976][ T6762] NILFS (loop0): trying rollback from an earlier position [ 230.956558][ T6762] NILFS (loop0): recovery complete [ 230.962275][ T6763] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6762] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6762] exit_group(0) = ? [pid 6762] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6762, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./837", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./837", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./837/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./837/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./837/binderfs") = 0 umount2("./837/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./837/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./837/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./837/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./837/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./837/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./837") = 0 mkdir("./838", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6764 ./strace-static-x86_64: Process 6764 attached [pid 6764] chdir("./838") = 0 [pid 6764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6764] setpgid(0, 0) = 0 [pid 6764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6764] write(3, "1000", 4) = 4 [pid 6764] close(3) = 0 [pid 6764] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6764] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6764] memfd_create("syzkaller", 0) = 3 [pid 6764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6764] 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"..., 2097152) = 2097152 [pid 6764] munmap(0x7f320ee61000, 2097152) = 0 [pid 6764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6764] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6764] close(3) = 0 [pid 6764] mkdir("./file1", 0777) = 0 [pid 6764] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6764] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6764] chdir("./file1") = 0 [pid 6764] ioctl(4, LOOP_CLR_FD) = 0 [pid 6764] close(4) = 0 [pid 6764] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6764] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6764] ftruncate(5, 33587199) = 0 [ 231.153043][ T6764] loop0: detected capacity change from 0 to 4096 [ 231.165543][ T6764] NILFS (loop0): invalid segment: Checksum error in segment payload [ 231.173859][ T6764] NILFS (loop0): trying rollback from an earlier position [ 231.186373][ T6764] NILFS (loop0): recovery complete [ 231.192327][ T6765] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6764] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6764] exit_group(0) = ? [pid 6764] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6764, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./838", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./838", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./838/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./838/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./838/binderfs") = 0 umount2("./838/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./838/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./838/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./838/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./838/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./838/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./838") = 0 mkdir("./839", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6766 ./strace-static-x86_64: Process 6766 attached [pid 6766] chdir("./839") = 0 [pid 6766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6766] setpgid(0, 0) = 0 [pid 6766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6766] write(3, "1000", 4) = 4 [pid 6766] close(3) = 0 [pid 6766] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6766] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6766] memfd_create("syzkaller", 0) = 3 [pid 6766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6766] 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"..., 2097152) = 2097152 [pid 6766] munmap(0x7f320ee61000, 2097152) = 0 [pid 6766] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6766] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6766] close(3) = 0 [pid 6766] mkdir("./file1", 0777) = 0 [pid 6766] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6766] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6766] chdir("./file1") = 0 [pid 6766] ioctl(4, LOOP_CLR_FD) = 0 [pid 6766] close(4) = 0 [pid 6766] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6766] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6766] ftruncate(5, 33587199) = 0 [ 231.385266][ T6766] loop0: detected capacity change from 0 to 4096 [ 231.398295][ T6766] NILFS (loop0): invalid segment: Checksum error in segment payload [ 231.406665][ T6766] NILFS (loop0): trying rollback from an earlier position [ 231.418017][ T6766] NILFS (loop0): recovery complete [ 231.423922][ T6767] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6766] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6766] exit_group(0) = ? [pid 6766] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6766, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./839", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./839", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./839/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./839/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./839/binderfs") = 0 umount2("./839/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./839/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./839/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./839/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./839/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./839/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./839") = 0 mkdir("./840", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6768 ./strace-static-x86_64: Process 6768 attached [pid 6768] chdir("./840") = 0 [pid 6768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6768] setpgid(0, 0) = 0 [pid 6768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6768] write(3, "1000", 4) = 4 [pid 6768] close(3) = 0 [pid 6768] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6768] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6768] memfd_create("syzkaller", 0) = 3 [pid 6768] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6768] 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"..., 2097152) = 2097152 [pid 6768] munmap(0x7f320ee61000, 2097152) = 0 [pid 6768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6768] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6768] close(3) = 0 [pid 6768] mkdir("./file1", 0777) = 0 [pid 6768] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6768] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6768] chdir("./file1") = 0 [pid 6768] ioctl(4, LOOP_CLR_FD) = 0 [pid 6768] close(4) = 0 [pid 6768] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6768] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6768] ftruncate(5, 33587199) = 0 [ 231.620097][ T6768] loop0: detected capacity change from 0 to 4096 [ 231.632847][ T6768] NILFS (loop0): invalid segment: Checksum error in segment payload [ 231.640897][ T6768] NILFS (loop0): trying rollback from an earlier position [ 231.652104][ T6768] NILFS (loop0): recovery complete [ 231.657963][ T6769] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6768] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6768] exit_group(0) = ? [pid 6768] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6768, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./840", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./840", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./840/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./840/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./840/binderfs") = 0 umount2("./840/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./840/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./840/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./840/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./840/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./840/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./840") = 0 mkdir("./841", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6770 ./strace-static-x86_64: Process 6770 attached [pid 6770] chdir("./841") = 0 [pid 6770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6770] setpgid(0, 0) = 0 [pid 6770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6770] write(3, "1000", 4) = 4 [pid 6770] close(3) = 0 [pid 6770] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6770] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6770] memfd_create("syzkaller", 0) = 3 [pid 6770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6770] 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"..., 2097152) = 2097152 [pid 6770] munmap(0x7f320ee61000, 2097152) = 0 [pid 6770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6770] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6770] close(3) = 0 [pid 6770] mkdir("./file1", 0777) = 0 [pid 6770] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6770] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6770] chdir("./file1") = 0 [pid 6770] ioctl(4, LOOP_CLR_FD) = 0 [pid 6770] close(4) = 0 [pid 6770] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6770] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6770] ftruncate(5, 33587199) = 0 [ 231.856595][ T6770] loop0: detected capacity change from 0 to 4096 [ 231.869183][ T6770] NILFS (loop0): invalid segment: Checksum error in segment payload [ 231.877299][ T6770] NILFS (loop0): trying rollback from an earlier position [ 231.888788][ T6770] NILFS (loop0): recovery complete [ 231.894498][ T6771] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6770] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6770] exit_group(0) = ? [pid 6770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6770, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./841", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./841", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./841/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./841/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./841/binderfs") = 0 umount2("./841/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./841/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./841/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./841/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./841/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./841/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./841") = 0 mkdir("./842", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6772 ./strace-static-x86_64: Process 6772 attached [pid 6772] chdir("./842") = 0 [pid 6772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6772] setpgid(0, 0) = 0 [pid 6772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6772] write(3, "1000", 4) = 4 [pid 6772] close(3) = 0 [pid 6772] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6772] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6772] memfd_create("syzkaller", 0) = 3 [pid 6772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6772] 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"..., 2097152) = 2097152 [pid 6772] munmap(0x7f320ee61000, 2097152) = 0 [pid 6772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6772] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6772] close(3) = 0 [pid 6772] mkdir("./file1", 0777) = 0 [pid 6772] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6772] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6772] chdir("./file1") = 0 [pid 6772] ioctl(4, LOOP_CLR_FD) = 0 [pid 6772] close(4) = 0 [pid 6772] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6772] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6772] ftruncate(5, 33587199) = 0 [ 232.092542][ T6772] loop0: detected capacity change from 0 to 4096 [ 232.105249][ T6772] NILFS (loop0): invalid segment: Checksum error in segment payload [ 232.113432][ T6772] NILFS (loop0): trying rollback from an earlier position [ 232.124903][ T6772] NILFS (loop0): recovery complete [ 232.130838][ T6773] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6772] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6772] exit_group(0) = ? [pid 6772] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6772, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./842", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./842", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./842/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./842/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./842/binderfs") = 0 umount2("./842/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./842/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./842/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./842/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./842/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./842/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./842") = 0 mkdir("./843", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6774 ./strace-static-x86_64: Process 6774 attached [pid 6774] chdir("./843") = 0 [pid 6774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6774] setpgid(0, 0) = 0 [pid 6774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6774] write(3, "1000", 4) = 4 [pid 6774] close(3) = 0 [pid 6774] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6774] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6774] memfd_create("syzkaller", 0) = 3 [pid 6774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6774] 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"..., 2097152) = 2097152 [pid 6774] munmap(0x7f320ee61000, 2097152) = 0 [pid 6774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6774] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6774] close(3) = 0 [pid 6774] mkdir("./file1", 0777) = 0 [pid 6774] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6774] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6774] chdir("./file1") = 0 [pid 6774] ioctl(4, LOOP_CLR_FD) = 0 [pid 6774] close(4) = 0 [pid 6774] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6774] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6774] ftruncate(5, 33587199) = 0 [ 232.306426][ T6774] loop0: detected capacity change from 0 to 4096 [ 232.318082][ T6774] NILFS (loop0): invalid segment: Checksum error in segment payload [ 232.326944][ T6774] NILFS (loop0): trying rollback from an earlier position [ 232.338610][ T6774] NILFS (loop0): recovery complete [ 232.344299][ T6775] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6774] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6774] exit_group(0) = ? [pid 6774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6774, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./843", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./843", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./843/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./843/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./843/binderfs") = 0 umount2("./843/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./843/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./843/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./843/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./843/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./843/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./843") = 0 mkdir("./844", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6776 ./strace-static-x86_64: Process 6776 attached [pid 6776] chdir("./844") = 0 [pid 6776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6776] setpgid(0, 0) = 0 [pid 6776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6776] write(3, "1000", 4) = 4 [pid 6776] close(3) = 0 [pid 6776] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6776] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6776] memfd_create("syzkaller", 0) = 3 [pid 6776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6776] 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"..., 2097152) = 2097152 [pid 6776] munmap(0x7f320ee61000, 2097152) = 0 [pid 6776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6776] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6776] close(3) = 0 [pid 6776] mkdir("./file1", 0777) = 0 [pid 6776] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6776] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6776] chdir("./file1") = 0 [pid 6776] ioctl(4, LOOP_CLR_FD) = 0 [pid 6776] close(4) = 0 [pid 6776] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6776] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6776] ftruncate(5, 33587199) = 0 [ 232.535153][ T6776] loop0: detected capacity change from 0 to 4096 [ 232.547023][ T6776] NILFS (loop0): invalid segment: Checksum error in segment payload [ 232.555622][ T6776] NILFS (loop0): trying rollback from an earlier position [ 232.567033][ T6776] NILFS (loop0): recovery complete [ 232.572988][ T6777] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6776] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6776] exit_group(0) = ? [pid 6776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6776, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./844", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./844", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./844/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./844/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./844/binderfs") = 0 umount2("./844/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./844/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./844/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./844/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./844/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./844/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./844") = 0 mkdir("./845", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6778 ./strace-static-x86_64: Process 6778 attached [pid 6778] chdir("./845") = 0 [pid 6778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6778] setpgid(0, 0) = 0 [pid 6778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6778] write(3, "1000", 4) = 4 [pid 6778] close(3) = 0 [pid 6778] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6778] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6778] memfd_create("syzkaller", 0) = 3 [pid 6778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6778] 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"..., 2097152) = 2097152 [pid 6778] munmap(0x7f320ee61000, 2097152) = 0 [pid 6778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6778] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6778] close(3) = 0 [pid 6778] mkdir("./file1", 0777) = 0 [pid 6778] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6778] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6778] chdir("./file1") = 0 [pid 6778] ioctl(4, LOOP_CLR_FD) = 0 [pid 6778] close(4) = 0 [pid 6778] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6778] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6778] ftruncate(5, 33587199) = 0 [ 232.762592][ T6778] loop0: detected capacity change from 0 to 4096 [ 232.774563][ T6778] NILFS (loop0): invalid segment: Checksum error in segment payload [ 232.782773][ T6778] NILFS (loop0): trying rollback from an earlier position [ 232.793731][ T6778] NILFS (loop0): recovery complete [ 232.799503][ T6779] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6778] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6778] exit_group(0) = ? [pid 6778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6778, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./845", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./845", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./845/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./845/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./845/binderfs") = 0 umount2("./845/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./845/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./845/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./845/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./845/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./845/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./845") = 0 mkdir("./846", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6780 ./strace-static-x86_64: Process 6780 attached [pid 6780] chdir("./846") = 0 [pid 6780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6780] setpgid(0, 0) = 0 [pid 6780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6780] write(3, "1000", 4) = 4 [pid 6780] close(3) = 0 [pid 6780] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6780] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6780] memfd_create("syzkaller", 0) = 3 [pid 6780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6780] 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"..., 2097152) = 2097152 [pid 6780] munmap(0x7f320ee61000, 2097152) = 0 [pid 6780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6780] close(3) = 0 [pid 6780] mkdir("./file1", 0777) = 0 [pid 6780] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6780] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6780] chdir("./file1") = 0 [pid 6780] ioctl(4, LOOP_CLR_FD) = 0 [pid 6780] close(4) = 0 [pid 6780] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6780] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6780] ftruncate(5, 33587199) = 0 [ 232.993359][ T6780] loop0: detected capacity change from 0 to 4096 [ 233.006237][ T6780] NILFS (loop0): invalid segment: Checksum error in segment payload [ 233.014330][ T6780] NILFS (loop0): trying rollback from an earlier position [ 233.025902][ T6780] NILFS (loop0): recovery complete [ 233.031670][ T6781] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6780] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6780] exit_group(0) = ? [pid 6780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6780, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./846", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./846", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./846/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./846/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./846/binderfs") = 0 umount2("./846/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./846/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./846/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./846/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./846/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./846/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./846") = 0 mkdir("./847", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6782 ./strace-static-x86_64: Process 6782 attached [pid 6782] chdir("./847") = 0 [pid 6782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6782] setpgid(0, 0) = 0 [pid 6782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6782] write(3, "1000", 4) = 4 [pid 6782] close(3) = 0 [pid 6782] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6782] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6782] memfd_create("syzkaller", 0) = 3 [pid 6782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6782] 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"..., 2097152) = 2097152 [pid 6782] munmap(0x7f320ee61000, 2097152) = 0 [pid 6782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6782] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6782] close(3) = 0 [pid 6782] mkdir("./file1", 0777) = 0 [pid 6782] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6782] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6782] chdir("./file1") = 0 [pid 6782] ioctl(4, LOOP_CLR_FD) = 0 [pid 6782] close(4) = 0 [pid 6782] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6782] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6782] ftruncate(5, 33587199) = 0 [ 233.225289][ T6782] loop0: detected capacity change from 0 to 4096 [ 233.238590][ T6782] NILFS (loop0): invalid segment: Checksum error in segment payload [ 233.246659][ T6782] NILFS (loop0): trying rollback from an earlier position [ 233.258098][ T6782] NILFS (loop0): recovery complete [ 233.264110][ T6783] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6782] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6782] exit_group(0) = ? [pid 6782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6782, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./847", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./847", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./847/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./847/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./847/binderfs") = 0 umount2("./847/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./847/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./847/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./847/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./847/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./847/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./847") = 0 mkdir("./848", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6784 ./strace-static-x86_64: Process 6784 attached [pid 6784] chdir("./848") = 0 [pid 6784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6784] setpgid(0, 0) = 0 [pid 6784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6784] write(3, "1000", 4) = 4 [pid 6784] close(3) = 0 [pid 6784] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6784] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6784] memfd_create("syzkaller", 0) = 3 [pid 6784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6784] 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"..., 2097152) = 2097152 [pid 6784] munmap(0x7f320ee61000, 2097152) = 0 [pid 6784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6784] close(3) = 0 [pid 6784] mkdir("./file1", 0777) = 0 [pid 6784] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6784] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6784] chdir("./file1") = 0 [pid 6784] ioctl(4, LOOP_CLR_FD) = 0 [pid 6784] close(4) = 0 [pid 6784] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6784] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6784] ftruncate(5, 33587199) = 0 [ 233.454586][ T6784] loop0: detected capacity change from 0 to 4096 [ 233.466898][ T6784] NILFS (loop0): invalid segment: Checksum error in segment payload [ 233.475451][ T6784] NILFS (loop0): trying rollback from an earlier position [ 233.486847][ T6784] NILFS (loop0): recovery complete [ 233.492727][ T6785] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6784] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6784] exit_group(0) = ? [pid 6784] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6784, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./848", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./848", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./848/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./848/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./848/binderfs") = 0 umount2("./848/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./848/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./848/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./848/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./848/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./848/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./848") = 0 mkdir("./849", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6786 ./strace-static-x86_64: Process 6786 attached [pid 6786] chdir("./849") = 0 [pid 6786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6786] setpgid(0, 0) = 0 [pid 6786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6786] write(3, "1000", 4) = 4 [pid 6786] close(3) = 0 [pid 6786] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6786] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6786] memfd_create("syzkaller", 0) = 3 [pid 6786] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6786] 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"..., 2097152) = 2097152 [pid 6786] munmap(0x7f320ee61000, 2097152) = 0 [pid 6786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6786] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6786] close(3) = 0 [pid 6786] mkdir("./file1", 0777) = 0 [pid 6786] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6786] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6786] chdir("./file1") = 0 [pid 6786] ioctl(4, LOOP_CLR_FD) = 0 [pid 6786] close(4) = 0 [pid 6786] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6786] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6786] ftruncate(5, 33587199) = 0 [ 233.686940][ T6786] loop0: detected capacity change from 0 to 4096 [ 233.699229][ T6786] NILFS (loop0): invalid segment: Checksum error in segment payload [ 233.707341][ T6786] NILFS (loop0): trying rollback from an earlier position [ 233.718502][ T6786] NILFS (loop0): recovery complete [ 233.724267][ T6787] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6786] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6786] exit_group(0) = ? [pid 6786] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6786, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./849", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./849", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./849/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./849/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./849/binderfs") = 0 umount2("./849/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./849/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./849/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./849/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./849/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./849/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./849") = 0 mkdir("./850", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6788 ./strace-static-x86_64: Process 6788 attached [pid 6788] chdir("./850") = 0 [pid 6788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6788] setpgid(0, 0) = 0 [pid 6788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6788] write(3, "1000", 4) = 4 [pid 6788] close(3) = 0 [pid 6788] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6788] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6788] memfd_create("syzkaller", 0) = 3 [pid 6788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6788] 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"..., 2097152) = 2097152 [pid 6788] munmap(0x7f320ee61000, 2097152) = 0 [pid 6788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6788] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6788] close(3) = 0 [pid 6788] mkdir("./file1", 0777) = 0 [pid 6788] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6788] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6788] chdir("./file1") = 0 [pid 6788] ioctl(4, LOOP_CLR_FD) = 0 [pid 6788] close(4) = 0 [pid 6788] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6788] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6788] ftruncate(5, 33587199) = 0 [ 233.917421][ T6788] loop0: detected capacity change from 0 to 4096 [ 233.929381][ T6788] NILFS (loop0): invalid segment: Checksum error in segment payload [ 233.937656][ T6788] NILFS (loop0): trying rollback from an earlier position [ 233.949296][ T6788] NILFS (loop0): recovery complete [ 233.954946][ T6789] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6788] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6788] exit_group(0) = ? [pid 6788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6788, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./850", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./850", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./850/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./850/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./850/binderfs") = 0 umount2("./850/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./850/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./850/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./850/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./850/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./850/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./850") = 0 mkdir("./851", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6790 ./strace-static-x86_64: Process 6790 attached [pid 6790] chdir("./851") = 0 [pid 6790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6790] setpgid(0, 0) = 0 [pid 6790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6790] write(3, "1000", 4) = 4 [pid 6790] close(3) = 0 [pid 6790] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6790] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6790] memfd_create("syzkaller", 0) = 3 [pid 6790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6790] 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"..., 2097152) = 2097152 [pid 6790] munmap(0x7f320ee61000, 2097152) = 0 [pid 6790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6790] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6790] close(3) = 0 [pid 6790] mkdir("./file1", 0777) = 0 [pid 6790] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6790] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6790] chdir("./file1") = 0 [pid 6790] ioctl(4, LOOP_CLR_FD) = 0 [pid 6790] close(4) = 0 [pid 6790] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6790] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6790] ftruncate(5, 33587199) = 0 [ 234.148131][ T6790] loop0: detected capacity change from 0 to 4096 [ 234.160437][ T6790] NILFS (loop0): invalid segment: Checksum error in segment payload [ 234.168469][ T6790] NILFS (loop0): trying rollback from an earlier position [ 234.179690][ T6790] NILFS (loop0): recovery complete [ 234.185672][ T6791] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6790] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6790] exit_group(0) = ? [pid 6790] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6790, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./851", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./851", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./851/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./851/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./851/binderfs") = 0 umount2("./851/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./851/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./851/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./851/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./851/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./851/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./851") = 0 mkdir("./852", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6792 attached [pid 6792] chdir("./852") = 0 [pid 6792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6792] setpgid(0, 0) = 0 [pid 6792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6792] write(3, "1000", 4) = 4 [pid 6792] close(3) = 0 [pid 6792] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6792] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6792] memfd_create("syzkaller", 0) = 3 [pid 6792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6792 [pid 6792] 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"..., 2097152) = 2097152 [pid 6792] munmap(0x7f320ee61000, 2097152) = 0 [pid 6792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6792] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6792] close(3) = 0 [pid 6792] mkdir("./file1", 0777) = 0 [pid 6792] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6792] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6792] chdir("./file1") = 0 [pid 6792] ioctl(4, LOOP_CLR_FD) = 0 [pid 6792] close(4) = 0 [pid 6792] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6792] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6792] ftruncate(5, 33587199) = 0 [ 234.374991][ T6792] loop0: detected capacity change from 0 to 4096 [ 234.388010][ T6792] NILFS (loop0): invalid segment: Checksum error in segment payload [ 234.396111][ T6792] NILFS (loop0): trying rollback from an earlier position [ 234.407662][ T6792] NILFS (loop0): recovery complete [ 234.413506][ T6793] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6792] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6792] exit_group(0) = ? [pid 6792] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6792, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./852", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./852", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./852/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./852/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./852/binderfs") = 0 umount2("./852/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./852/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./852/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./852/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./852/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./852/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./852") = 0 mkdir("./853", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6794 ./strace-static-x86_64: Process 6794 attached [pid 6794] chdir("./853") = 0 [pid 6794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6794] setpgid(0, 0) = 0 [pid 6794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6794] write(3, "1000", 4) = 4 [pid 6794] close(3) = 0 [pid 6794] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6794] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6794] memfd_create("syzkaller", 0) = 3 [pid 6794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6794] 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"..., 2097152) = 2097152 [pid 6794] munmap(0x7f320ee61000, 2097152) = 0 [pid 6794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6794] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6794] close(3) = 0 [pid 6794] mkdir("./file1", 0777) = 0 [pid 6794] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6794] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6794] chdir("./file1") = 0 [pid 6794] ioctl(4, LOOP_CLR_FD) = 0 [pid 6794] close(4) = 0 [pid 6794] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6794] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6794] ftruncate(5, 33587199) = 0 [ 234.604579][ T6794] loop0: detected capacity change from 0 to 4096 [ 234.617685][ T6794] NILFS (loop0): invalid segment: Checksum error in segment payload [ 234.625820][ T6794] NILFS (loop0): trying rollback from an earlier position [ 234.636690][ T6794] NILFS (loop0): recovery complete [ 234.642558][ T6795] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6794] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6794] exit_group(0) = ? [pid 6794] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6794, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./853", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./853", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./853/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./853/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./853/binderfs") = 0 umount2("./853/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./853/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./853/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./853/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./853/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./853/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./853") = 0 mkdir("./854", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6796 ./strace-static-x86_64: Process 6796 attached [pid 6796] chdir("./854") = 0 [pid 6796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6796] setpgid(0, 0) = 0 [pid 6796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6796] write(3, "1000", 4) = 4 [pid 6796] close(3) = 0 [pid 6796] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6796] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6796] memfd_create("syzkaller", 0) = 3 [pid 6796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6796] 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"..., 2097152) = 2097152 [pid 6796] munmap(0x7f320ee61000, 2097152) = 0 [pid 6796] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6796] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6796] close(3) = 0 [pid 6796] mkdir("./file1", 0777) = 0 [pid 6796] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6796] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6796] chdir("./file1") = 0 [pid 6796] ioctl(4, LOOP_CLR_FD) = 0 [pid 6796] close(4) = 0 [pid 6796] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6796] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6796] ftruncate(5, 33587199) = 0 [ 234.815646][ T6796] loop0: detected capacity change from 0 to 4096 [ 234.828327][ T6796] NILFS (loop0): invalid segment: Checksum error in segment payload [ 234.836386][ T6796] NILFS (loop0): trying rollback from an earlier position [ 234.847914][ T6796] NILFS (loop0): recovery complete [ 234.853797][ T6797] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6796] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6796] exit_group(0) = ? [pid 6796] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6796, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./854", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./854", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./854/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./854/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./854/binderfs") = 0 umount2("./854/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./854/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./854/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./854/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./854/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./854/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./854") = 0 mkdir("./855", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6798 ./strace-static-x86_64: Process 6798 attached [pid 6798] chdir("./855") = 0 [pid 6798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6798] setpgid(0, 0) = 0 [pid 6798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6798] write(3, "1000", 4) = 4 [pid 6798] close(3) = 0 [pid 6798] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6798] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6798] memfd_create("syzkaller", 0) = 3 [pid 6798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6798] 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"..., 2097152) = 2097152 [pid 6798] munmap(0x7f320ee61000, 2097152) = 0 [pid 6798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6798] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6798] close(3) = 0 [pid 6798] mkdir("./file1", 0777) = 0 [pid 6798] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6798] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6798] chdir("./file1") = 0 [pid 6798] ioctl(4, LOOP_CLR_FD) = 0 [pid 6798] close(4) = 0 [pid 6798] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6798] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6798] ftruncate(5, 33587199) = 0 [ 235.048170][ T6798] loop0: detected capacity change from 0 to 4096 [ 235.060069][ T6798] NILFS (loop0): invalid segment: Checksum error in segment payload [ 235.068189][ T6798] NILFS (loop0): trying rollback from an earlier position [ 235.079704][ T6798] NILFS (loop0): recovery complete [ 235.085439][ T6799] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6798] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6798] exit_group(0) = ? [pid 6798] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6798, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./855", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./855", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./855/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./855/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./855/binderfs") = 0 umount2("./855/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./855/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./855/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./855/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./855/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./855/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./855") = 0 mkdir("./856", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6800 attached [pid 6800] chdir("./856" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6800 [pid 6800] <... chdir resumed>) = 0 [pid 6800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6800] setpgid(0, 0) = 0 [pid 6800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6800] write(3, "1000", 4) = 4 [pid 6800] close(3) = 0 [pid 6800] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6800] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6800] memfd_create("syzkaller", 0) = 3 [pid 6800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6800] 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"..., 2097152) = 2097152 [pid 6800] munmap(0x7f320ee61000, 2097152) = 0 [pid 6800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6800] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6800] close(3) = 0 [pid 6800] mkdir("./file1", 0777) = 0 [pid 6800] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6800] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6800] chdir("./file1") = 0 [pid 6800] ioctl(4, LOOP_CLR_FD) = 0 [pid 6800] close(4) = 0 [pid 6800] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6800] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6800] ftruncate(5, 33587199) = 0 [ 235.277062][ T6800] loop0: detected capacity change from 0 to 4096 [ 235.289240][ T6800] NILFS (loop0): invalid segment: Checksum error in segment payload [ 235.297414][ T6800] NILFS (loop0): trying rollback from an earlier position [ 235.308499][ T6800] NILFS (loop0): recovery complete [ 235.314423][ T6801] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6800] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6800] exit_group(0) = ? [pid 6800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6800, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./856", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./856", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./856/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./856/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./856/binderfs") = 0 umount2("./856/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./856/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./856/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./856/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./856/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./856/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./856") = 0 mkdir("./857", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6802 ./strace-static-x86_64: Process 6802 attached [pid 6802] chdir("./857") = 0 [pid 6802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6802] setpgid(0, 0) = 0 [pid 6802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6802] write(3, "1000", 4) = 4 [pid 6802] close(3) = 0 [pid 6802] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6802] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6802] memfd_create("syzkaller", 0) = 3 [pid 6802] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6802] 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"..., 2097152) = 2097152 [pid 6802] munmap(0x7f320ee61000, 2097152) = 0 [pid 6802] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6802] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6802] close(3) = 0 [pid 6802] mkdir("./file1", 0777) = 0 [pid 6802] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6802] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6802] chdir("./file1") = 0 [pid 6802] ioctl(4, LOOP_CLR_FD) = 0 [pid 6802] close(4) = 0 [pid 6802] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6802] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6802] ftruncate(5, 33587199) = 0 [ 235.502901][ T6802] loop0: detected capacity change from 0 to 4096 [ 235.516211][ T6802] NILFS (loop0): invalid segment: Checksum error in segment payload [ 235.524268][ T6802] NILFS (loop0): trying rollback from an earlier position [ 235.535943][ T6802] NILFS (loop0): recovery complete [ 235.541729][ T6803] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6802] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6802] exit_group(0) = ? [pid 6802] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6802, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./857", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./857", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./857/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./857/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./857/binderfs") = 0 umount2("./857/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./857/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./857/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./857/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./857/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./857/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./857") = 0 mkdir("./858", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6804 ./strace-static-x86_64: Process 6804 attached [pid 6804] chdir("./858") = 0 [pid 6804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6804] setpgid(0, 0) = 0 [pid 6804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6804] write(3, "1000", 4) = 4 [pid 6804] close(3) = 0 [pid 6804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6804] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6804] memfd_create("syzkaller", 0) = 3 [pid 6804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6804] 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"..., 2097152) = 2097152 [pid 6804] munmap(0x7f320ee61000, 2097152) = 0 [pid 6804] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6804] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6804] close(3) = 0 [pid 6804] mkdir("./file1", 0777) = 0 [pid 6804] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6804] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6804] chdir("./file1") = 0 [pid 6804] ioctl(4, LOOP_CLR_FD) = 0 [pid 6804] close(4) = 0 [pid 6804] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6804] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6804] ftruncate(5, 33587199) = 0 [ 235.732374][ T6804] loop0: detected capacity change from 0 to 4096 [ 235.744090][ T6804] NILFS (loop0): invalid segment: Checksum error in segment payload [ 235.752170][ T6804] NILFS (loop0): trying rollback from an earlier position [ 235.763063][ T6804] NILFS (loop0): recovery complete [ 235.768699][ T6805] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6804] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6804] exit_group(0) = ? [pid 6804] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6804, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./858", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./858", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./858/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./858/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./858/binderfs") = 0 umount2("./858/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./858/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./858/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./858/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./858/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./858/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./858") = 0 mkdir("./859", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6806 attached , child_tidptr=0x555555c06690) = 6806 [pid 6806] chdir("./859") = 0 [pid 6806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6806] setpgid(0, 0) = 0 [pid 6806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6806] write(3, "1000", 4) = 4 [pid 6806] close(3) = 0 [pid 6806] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6806] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6806] memfd_create("syzkaller", 0) = 3 [pid 6806] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6806] 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"..., 2097152) = 2097152 [pid 6806] munmap(0x7f320ee61000, 2097152) = 0 [pid 6806] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6806] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6806] close(3) = 0 [pid 6806] mkdir("./file1", 0777) = 0 [pid 6806] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6806] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6806] chdir("./file1") = 0 [pid 6806] ioctl(4, LOOP_CLR_FD) = 0 [pid 6806] close(4) = 0 [pid 6806] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6806] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6806] ftruncate(5, 33587199) = 0 [ 235.960880][ T6806] loop0: detected capacity change from 0 to 4096 [ 235.972586][ T6806] NILFS (loop0): invalid segment: Checksum error in segment payload [ 235.980794][ T6806] NILFS (loop0): trying rollback from an earlier position [ 235.991609][ T6806] NILFS (loop0): recovery complete [ 235.997386][ T6807] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6806] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6806] exit_group(0) = ? [pid 6806] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6806, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./859", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./859", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./859/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./859/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./859/binderfs") = 0 umount2("./859/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./859/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./859/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./859/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./859/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./859/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./859") = 0 mkdir("./860", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6808 ./strace-static-x86_64: Process 6808 attached [pid 6808] chdir("./860") = 0 [pid 6808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6808] setpgid(0, 0) = 0 [pid 6808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6808] write(3, "1000", 4) = 4 [pid 6808] close(3) = 0 [pid 6808] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6808] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6808] memfd_create("syzkaller", 0) = 3 [pid 6808] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6808] 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"..., 2097152) = 2097152 [pid 6808] munmap(0x7f320ee61000, 2097152) = 0 [pid 6808] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6808] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6808] close(3) = 0 [pid 6808] mkdir("./file1", 0777) = 0 [pid 6808] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6808] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6808] chdir("./file1") = 0 [pid 6808] ioctl(4, LOOP_CLR_FD) = 0 [pid 6808] close(4) = 0 [pid 6808] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6808] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6808] ftruncate(5, 33587199) = 0 [ 236.188857][ T6808] loop0: detected capacity change from 0 to 4096 [ 236.202122][ T6808] NILFS (loop0): invalid segment: Checksum error in segment payload [ 236.210253][ T6808] NILFS (loop0): trying rollback from an earlier position [ 236.221731][ T6808] NILFS (loop0): recovery complete [ 236.227389][ T6809] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6808] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6808] exit_group(0) = ? [pid 6808] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6808, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./860", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./860", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./860/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./860/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./860/binderfs") = 0 umount2("./860/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./860/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./860/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./860/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./860/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./860/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./860") = 0 mkdir("./861", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6810 ./strace-static-x86_64: Process 6810 attached [pid 6810] chdir("./861") = 0 [pid 6810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6810] setpgid(0, 0) = 0 [pid 6810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6810] write(3, "1000", 4) = 4 [pid 6810] close(3) = 0 [pid 6810] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6810] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6810] memfd_create("syzkaller", 0) = 3 [pid 6810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6810] 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"..., 2097152) = 2097152 [pid 6810] munmap(0x7f320ee61000, 2097152) = 0 [pid 6810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6810] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6810] close(3) = 0 [pid 6810] mkdir("./file1", 0777) = 0 [pid 6810] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6810] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6810] chdir("./file1") = 0 [pid 6810] ioctl(4, LOOP_CLR_FD) = 0 [pid 6810] close(4) = 0 [pid 6810] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6810] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6810] ftruncate(5, 33587199) = 0 [ 236.420094][ T6810] loop0: detected capacity change from 0 to 4096 [ 236.433674][ T6810] NILFS (loop0): invalid segment: Checksum error in segment payload [ 236.441748][ T6810] NILFS (loop0): trying rollback from an earlier position [ 236.452506][ T6810] NILFS (loop0): recovery complete [ 236.458146][ T6811] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6810] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6810] exit_group(0) = ? [pid 6810] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6810, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./861", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./861", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./861/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./861/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./861/binderfs") = 0 umount2("./861/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./861/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./861/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./861/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./861/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./861/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./861") = 0 mkdir("./862", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6812 ./strace-static-x86_64: Process 6812 attached [pid 6812] chdir("./862") = 0 [pid 6812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6812] setpgid(0, 0) = 0 [pid 6812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6812] write(3, "1000", 4) = 4 [pid 6812] close(3) = 0 [pid 6812] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6812] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6812] memfd_create("syzkaller", 0) = 3 [pid 6812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6812] 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"..., 2097152) = 2097152 [pid 6812] munmap(0x7f320ee61000, 2097152) = 0 [pid 6812] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6812] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6812] close(3) = 0 [pid 6812] mkdir("./file1", 0777) = 0 [pid 6812] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6812] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6812] chdir("./file1") = 0 [pid 6812] ioctl(4, LOOP_CLR_FD) = 0 [pid 6812] close(4) = 0 [pid 6812] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6812] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6812] ftruncate(5, 33587199) = 0 [ 236.651591][ T6812] loop0: detected capacity change from 0 to 4096 [ 236.663999][ T6812] NILFS (loop0): invalid segment: Checksum error in segment payload [ 236.672061][ T6812] NILFS (loop0): trying rollback from an earlier position [ 236.683229][ T6812] NILFS (loop0): recovery complete [ 236.688899][ T6813] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6812] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6812] exit_group(0) = ? [pid 6812] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6812, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./862", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./862", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./862/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./862/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./862/binderfs") = 0 umount2("./862/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./862/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./862/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./862/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./862/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./862/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./862") = 0 mkdir("./863", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6814 ./strace-static-x86_64: Process 6814 attached [pid 6814] chdir("./863") = 0 [pid 6814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6814] setpgid(0, 0) = 0 [pid 6814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6814] write(3, "1000", 4) = 4 [pid 6814] close(3) = 0 [pid 6814] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6814] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6814] memfd_create("syzkaller", 0) = 3 [pid 6814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6814] 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"..., 2097152) = 2097152 [pid 6814] munmap(0x7f320ee61000, 2097152) = 0 [pid 6814] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6814] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6814] close(3) = 0 [pid 6814] mkdir("./file1", 0777) = 0 [pid 6814] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6814] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6814] chdir("./file1") = 0 [pid 6814] ioctl(4, LOOP_CLR_FD) = 0 [pid 6814] close(4) = 0 [pid 6814] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6814] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6814] ftruncate(5, 33587199) = 0 [ 236.885750][ T6814] loop0: detected capacity change from 0 to 4096 [ 236.898405][ T6814] NILFS (loop0): invalid segment: Checksum error in segment payload [ 236.906599][ T6814] NILFS (loop0): trying rollback from an earlier position [ 236.917645][ T6814] NILFS (loop0): recovery complete [ 236.923267][ T6815] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6814] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6814] exit_group(0) = ? [pid 6814] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6814, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./863", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./863", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./863/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./863/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./863/binderfs") = 0 umount2("./863/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./863/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./863/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./863/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./863/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./863/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./863") = 0 mkdir("./864", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6816 attached , child_tidptr=0x555555c06690) = 6816 [pid 6816] chdir("./864") = 0 [pid 6816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6816] setpgid(0, 0) = 0 [pid 6816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6816] write(3, "1000", 4) = 4 [pid 6816] close(3) = 0 [pid 6816] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6816] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6816] memfd_create("syzkaller", 0) = 3 [pid 6816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6816] 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"..., 2097152) = 2097152 [pid 6816] munmap(0x7f320ee61000, 2097152) = 0 [pid 6816] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6816] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6816] close(3) = 0 [pid 6816] mkdir("./file1", 0777) = 0 [pid 6816] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6816] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6816] chdir("./file1") = 0 [pid 6816] ioctl(4, LOOP_CLR_FD) = 0 [pid 6816] close(4) = 0 [pid 6816] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6816] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6816] ftruncate(5, 33587199) = 0 [ 237.122725][ T6816] loop0: detected capacity change from 0 to 4096 [ 237.134355][ T6816] NILFS (loop0): invalid segment: Checksum error in segment payload [ 237.142470][ T6816] NILFS (loop0): trying rollback from an earlier position [ 237.154535][ T6816] NILFS (loop0): recovery complete [ 237.160246][ T6817] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6816] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6816] exit_group(0) = ? [pid 6816] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6816, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./864", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./864", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./864/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./864/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./864/binderfs") = 0 umount2("./864/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./864/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./864/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./864/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./864/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./864/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./864") = 0 mkdir("./865", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6818 ./strace-static-x86_64: Process 6818 attached [pid 6818] chdir("./865") = 0 [pid 6818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6818] setpgid(0, 0) = 0 [pid 6818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6818] write(3, "1000", 4) = 4 [pid 6818] close(3) = 0 [pid 6818] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6818] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6818] memfd_create("syzkaller", 0) = 3 [pid 6818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6818] 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"..., 2097152) = 2097152 [pid 6818] munmap(0x7f320ee61000, 2097152) = 0 [pid 6818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6818] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6818] close(3) = 0 [pid 6818] mkdir("./file1", 0777) = 0 [pid 6818] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6818] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6818] chdir("./file1") = 0 [pid 6818] ioctl(4, LOOP_CLR_FD) = 0 [pid 6818] close(4) = 0 [pid 6818] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6818] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6818] ftruncate(5, 33587199) = 0 [ 237.350900][ T6818] loop0: detected capacity change from 0 to 4096 [ 237.364100][ T6818] NILFS (loop0): invalid segment: Checksum error in segment payload [ 237.372160][ T6818] NILFS (loop0): trying rollback from an earlier position [ 237.384114][ T6818] NILFS (loop0): recovery complete [ 237.389836][ T6819] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6818] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6818] exit_group(0) = ? [pid 6818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6818, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./865", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./865", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./865/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./865/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./865/binderfs") = 0 umount2("./865/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./865/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./865/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./865/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./865/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./865/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./865") = 0 mkdir("./866", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6820 attached [pid 6820] chdir("./866") = 0 [pid 6820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6820] setpgid(0, 0) = 0 [pid 6820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6820 [pid 6820] <... openat resumed>) = 3 [pid 6820] write(3, "1000", 4) = 4 [pid 6820] close(3) = 0 [pid 6820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6820] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6820] memfd_create("syzkaller", 0) = 3 [pid 6820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6820] 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"..., 2097152) = 2097152 [pid 6820] munmap(0x7f320ee61000, 2097152) = 0 [pid 6820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6820] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6820] close(3) = 0 [pid 6820] mkdir("./file1", 0777) = 0 [pid 6820] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6820] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6820] chdir("./file1") = 0 [pid 6820] ioctl(4, LOOP_CLR_FD) = 0 [pid 6820] close(4) = 0 [pid 6820] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6820] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6820] ftruncate(5, 33587199) = 0 [ 237.577990][ T6820] loop0: detected capacity change from 0 to 4096 [ 237.590998][ T6820] NILFS (loop0): invalid segment: Checksum error in segment payload [ 237.599105][ T6820] NILFS (loop0): trying rollback from an earlier position [ 237.610815][ T6820] NILFS (loop0): recovery complete [ 237.616484][ T6821] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6820] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6820] exit_group(0) = ? [pid 6820] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6820, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./866", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./866", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./866/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./866/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./866/binderfs") = 0 umount2("./866/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./866/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./866/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./866/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./866/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./866/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./866") = 0 mkdir("./867", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6822 ./strace-static-x86_64: Process 6822 attached [pid 6822] chdir("./867") = 0 [pid 6822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6822] setpgid(0, 0) = 0 [pid 6822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6822] write(3, "1000", 4) = 4 [pid 6822] close(3) = 0 [pid 6822] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6822] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6822] memfd_create("syzkaller", 0) = 3 [pid 6822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6822] 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"..., 2097152) = 2097152 [pid 6822] munmap(0x7f320ee61000, 2097152) = 0 [pid 6822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6822] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6822] close(3) = 0 [pid 6822] mkdir("./file1", 0777) = 0 [pid 6822] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6822] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6822] chdir("./file1") = 0 [pid 6822] ioctl(4, LOOP_CLR_FD) = 0 [pid 6822] close(4) = 0 [pid 6822] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6822] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6822] ftruncate(5, 33587199) = 0 [ 237.792307][ T6822] loop0: detected capacity change from 0 to 4096 [ 237.804858][ T6822] NILFS (loop0): invalid segment: Checksum error in segment payload [ 237.813022][ T6822] NILFS (loop0): trying rollback from an earlier position [ 237.824609][ T6822] NILFS (loop0): recovery complete [ 237.830296][ T6823] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6822] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6822] exit_group(0) = ? [pid 6822] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6822, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./867", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./867", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./867/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./867/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./867/binderfs") = 0 umount2("./867/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./867/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./867/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./867/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./867/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./867/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./867") = 0 mkdir("./868", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6824 attached , child_tidptr=0x555555c06690) = 6824 [pid 6824] chdir("./868") = 0 [pid 6824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6824] setpgid(0, 0) = 0 [pid 6824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6824] write(3, "1000", 4) = 4 [pid 6824] close(3) = 0 [pid 6824] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6824] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6824] memfd_create("syzkaller", 0) = 3 [pid 6824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6824] 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"..., 2097152) = 2097152 [pid 6824] munmap(0x7f320ee61000, 2097152) = 0 [pid 6824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6824] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6824] close(3) = 0 [pid 6824] mkdir("./file1", 0777) = 0 [pid 6824] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6824] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6824] chdir("./file1") = 0 [pid 6824] ioctl(4, LOOP_CLR_FD) = 0 [pid 6824] close(4) = 0 [pid 6824] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6824] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6824] ftruncate(5, 33587199) = 0 [ 238.027584][ T6824] loop0: detected capacity change from 0 to 4096 [ 238.039941][ T6824] NILFS (loop0): invalid segment: Checksum error in segment payload [ 238.048002][ T6824] NILFS (loop0): trying rollback from an earlier position [ 238.059154][ T6824] NILFS (loop0): recovery complete [ 238.064878][ T6825] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6824] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6824] exit_group(0) = ? [pid 6824] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6824, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./868", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./868", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./868/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./868/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./868/binderfs") = 0 umount2("./868/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./868/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./868/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./868/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./868/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./868/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./868") = 0 mkdir("./869", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6826 attached , child_tidptr=0x555555c06690) = 6826 [pid 6826] chdir("./869") = 0 [pid 6826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6826] setpgid(0, 0) = 0 [pid 6826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6826] write(3, "1000", 4) = 4 [pid 6826] close(3) = 0 [pid 6826] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6826] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6826] memfd_create("syzkaller", 0) = 3 [pid 6826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6826] 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"..., 2097152) = 2097152 [pid 6826] munmap(0x7f320ee61000, 2097152) = 0 [pid 6826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6826] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6826] close(3) = 0 [pid 6826] mkdir("./file1", 0777) = 0 [pid 6826] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6826] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6826] chdir("./file1") = 0 [pid 6826] ioctl(4, LOOP_CLR_FD) = 0 [pid 6826] close(4) = 0 [pid 6826] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6826] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6826] ftruncate(5, 33587199) = 0 [ 238.257748][ T6826] loop0: detected capacity change from 0 to 4096 [ 238.269839][ T6826] NILFS (loop0): invalid segment: Checksum error in segment payload [ 238.278152][ T6826] NILFS (loop0): trying rollback from an earlier position [ 238.289804][ T6826] NILFS (loop0): recovery complete [ 238.295485][ T6827] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6826] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6826] exit_group(0) = ? [pid 6826] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6826, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./869", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./869", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./869/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./869/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./869/binderfs") = 0 umount2("./869/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./869/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./869/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./869/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./869/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./869/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./869") = 0 mkdir("./870", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6828 attached , child_tidptr=0x555555c06690) = 6828 [pid 6828] chdir("./870") = 0 [pid 6828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6828] setpgid(0, 0) = 0 [pid 6828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6828] write(3, "1000", 4) = 4 [pid 6828] close(3) = 0 [pid 6828] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6828] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6828] memfd_create("syzkaller", 0) = 3 [pid 6828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6828] 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"..., 2097152) = 2097152 [pid 6828] munmap(0x7f320ee61000, 2097152) = 0 [pid 6828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6828] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6828] close(3) = 0 [pid 6828] mkdir("./file1", 0777) = 0 [pid 6828] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6828] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6828] chdir("./file1") = 0 [pid 6828] ioctl(4, LOOP_CLR_FD) = 0 [pid 6828] close(4) = 0 [pid 6828] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6828] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6828] ftruncate(5, 33587199) = 0 [ 238.496063][ T6828] loop0: detected capacity change from 0 to 4096 [ 238.507786][ T6828] NILFS (loop0): invalid segment: Checksum error in segment payload [ 238.515839][ T6828] NILFS (loop0): trying rollback from an earlier position [ 238.527099][ T6828] NILFS (loop0): recovery complete [ 238.532988][ T6829] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6828] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6828] exit_group(0) = ? [pid 6828] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6828, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./870", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./870", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./870/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./870/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./870/binderfs") = 0 umount2("./870/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./870/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./870/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./870/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./870/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./870/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./870") = 0 mkdir("./871", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6830 ./strace-static-x86_64: Process 6830 attached [pid 6830] chdir("./871") = 0 [pid 6830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6830] setpgid(0, 0) = 0 [pid 6830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6830] write(3, "1000", 4) = 4 [pid 6830] close(3) = 0 [pid 6830] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6830] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6830] memfd_create("syzkaller", 0) = 3 [pid 6830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6830] 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"..., 2097152) = 2097152 [pid 6830] munmap(0x7f320ee61000, 2097152) = 0 [pid 6830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6830] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6830] close(3) = 0 [pid 6830] mkdir("./file1", 0777) = 0 [pid 6830] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6830] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6830] chdir("./file1") = 0 [pid 6830] ioctl(4, LOOP_CLR_FD) = 0 [pid 6830] close(4) = 0 [pid 6830] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6830] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6830] ftruncate(5, 33587199) = 0 [ 238.727444][ T6830] loop0: detected capacity change from 0 to 4096 [ 238.740648][ T6830] NILFS (loop0): invalid segment: Checksum error in segment payload [ 238.748790][ T6830] NILFS (loop0): trying rollback from an earlier position [ 238.760336][ T6830] NILFS (loop0): recovery complete [ 238.765990][ T6831] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6830] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6830] exit_group(0) = ? [pid 6830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6830, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./871", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./871", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./871/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./871/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./871/binderfs") = 0 umount2("./871/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./871/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./871/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./871/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./871/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./871/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./871") = 0 mkdir("./872", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6832 ./strace-static-x86_64: Process 6832 attached [pid 6832] chdir("./872") = 0 [pid 6832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6832] setpgid(0, 0) = 0 [pid 6832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6832] write(3, "1000", 4) = 4 [pid 6832] close(3) = 0 [pid 6832] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6832] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6832] memfd_create("syzkaller", 0) = 3 [pid 6832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6832] 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"..., 2097152) = 2097152 [pid 6832] munmap(0x7f320ee61000, 2097152) = 0 [pid 6832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6832] close(3) = 0 [pid 6832] mkdir("./file1", 0777) = 0 [pid 6832] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6832] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6832] chdir("./file1") = 0 [pid 6832] ioctl(4, LOOP_CLR_FD) = 0 [pid 6832] close(4) = 0 [pid 6832] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6832] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6832] ftruncate(5, 33587199) = 0 [ 238.961672][ T6832] loop0: detected capacity change from 0 to 4096 [ 238.973950][ T6832] NILFS (loop0): invalid segment: Checksum error in segment payload [ 238.982062][ T6832] NILFS (loop0): trying rollback from an earlier position [ 238.993221][ T6832] NILFS (loop0): recovery complete [ 238.999082][ T6833] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6832] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6832] exit_group(0) = ? [pid 6832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6832, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./872", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./872", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./872/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./872/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./872/binderfs") = 0 umount2("./872/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./872/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./872/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./872/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./872/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./872/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./872") = 0 mkdir("./873", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6834 ./strace-static-x86_64: Process 6834 attached [pid 6834] chdir("./873") = 0 [pid 6834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6834] setpgid(0, 0) = 0 [pid 6834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6834] write(3, "1000", 4) = 4 [pid 6834] close(3) = 0 [pid 6834] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6834] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6834] memfd_create("syzkaller", 0) = 3 [pid 6834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6834] 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"..., 2097152) = 2097152 [pid 6834] munmap(0x7f320ee61000, 2097152) = 0 [pid 6834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6834] close(3) = 0 [pid 6834] mkdir("./file1", 0777) = 0 [pid 6834] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6834] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6834] chdir("./file1") = 0 [pid 6834] ioctl(4, LOOP_CLR_FD) = 0 [pid 6834] close(4) = 0 [pid 6834] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6834] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6834] ftruncate(5, 33587199) = 0 [ 239.185044][ T6834] loop0: detected capacity change from 0 to 4096 [ 239.198006][ T6834] NILFS (loop0): invalid segment: Checksum error in segment payload [ 239.206257][ T6834] NILFS (loop0): trying rollback from an earlier position [ 239.217661][ T6834] NILFS (loop0): recovery complete [ 239.223357][ T6835] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6834] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6834] exit_group(0) = ? [pid 6834] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6834, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./873", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./873", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./873/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./873/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./873/binderfs") = 0 umount2("./873/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./873/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./873/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./873/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./873/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./873/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./873") = 0 mkdir("./874", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6836 ./strace-static-x86_64: Process 6836 attached [pid 6836] chdir("./874") = 0 [pid 6836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6836] setpgid(0, 0) = 0 [pid 6836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6836] write(3, "1000", 4) = 4 [pid 6836] close(3) = 0 [pid 6836] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6836] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6836] memfd_create("syzkaller", 0) = 3 [pid 6836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6836] 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"..., 2097152) = 2097152 [pid 6836] munmap(0x7f320ee61000, 2097152) = 0 [pid 6836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6836] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6836] close(3) = 0 [pid 6836] mkdir("./file1", 0777) = 0 [pid 6836] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6836] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6836] chdir("./file1") = 0 [pid 6836] ioctl(4, LOOP_CLR_FD) = 0 [pid 6836] close(4) = 0 [pid 6836] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6836] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6836] ftruncate(5, 33587199) = 0 [ 239.409214][ T6836] loop0: detected capacity change from 0 to 4096 [ 239.421867][ T6836] NILFS (loop0): invalid segment: Checksum error in segment payload [ 239.429872][ T6836] NILFS (loop0): trying rollback from an earlier position [ 239.441297][ T6836] NILFS (loop0): recovery complete [ 239.446996][ T6837] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6836] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6836] exit_group(0) = ? [pid 6836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6836, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./874", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./874", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./874/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./874/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./874/binderfs") = 0 umount2("./874/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./874/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./874/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./874/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./874/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./874/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./874") = 0 mkdir("./875", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6838 attached [pid 6838] chdir("./875") = 0 [pid 6838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6838] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6838 [pid 6838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6838] write(3, "1000", 4) = 4 [pid 6838] close(3) = 0 [pid 6838] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6838] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6838] memfd_create("syzkaller", 0) = 3 [pid 6838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6838] 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"..., 2097152) = 2097152 [pid 6838] munmap(0x7f320ee61000, 2097152) = 0 [pid 6838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6838] close(3) = 0 [pid 6838] mkdir("./file1", 0777) = 0 [pid 6838] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6838] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6838] chdir("./file1") = 0 [pid 6838] ioctl(4, LOOP_CLR_FD) = 0 [pid 6838] close(4) = 0 [pid 6838] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6838] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6838] ftruncate(5, 33587199) = 0 [ 239.634232][ T6838] loop0: detected capacity change from 0 to 4096 [ 239.646293][ T6838] NILFS (loop0): invalid segment: Checksum error in segment payload [ 239.654502][ T6838] NILFS (loop0): trying rollback from an earlier position [ 239.665943][ T6838] NILFS (loop0): recovery complete [ 239.671853][ T6839] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6838] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6838] exit_group(0) = ? [pid 6838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6838, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./875", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./875", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./875/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./875/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./875/binderfs") = 0 umount2("./875/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./875/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./875/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./875/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./875/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./875/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./875") = 0 mkdir("./876", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6840 ./strace-static-x86_64: Process 6840 attached [pid 6840] chdir("./876") = 0 [pid 6840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6840] setpgid(0, 0) = 0 [pid 6840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6840] write(3, "1000", 4) = 4 [pid 6840] close(3) = 0 [pid 6840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6840] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6840] memfd_create("syzkaller", 0) = 3 [pid 6840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6840] 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"..., 2097152) = 2097152 [pid 6840] munmap(0x7f320ee61000, 2097152) = 0 [pid 6840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6840] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6840] close(3) = 0 [pid 6840] mkdir("./file1", 0777) = 0 [pid 6840] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6840] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6840] chdir("./file1") = 0 [pid 6840] ioctl(4, LOOP_CLR_FD) = 0 [pid 6840] close(4) = 0 [pid 6840] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6840] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6840] ftruncate(5, 33587199) = 0 [ 239.864368][ T6840] loop0: detected capacity change from 0 to 4096 [ 239.877185][ T6840] NILFS (loop0): invalid segment: Checksum error in segment payload [ 239.885233][ T6840] NILFS (loop0): trying rollback from an earlier position [ 239.896375][ T6840] NILFS (loop0): recovery complete [ 239.902309][ T6841] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6840] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6840] exit_group(0) = ? [pid 6840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6840, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./876", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./876", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./876/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./876/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./876/binderfs") = 0 umount2("./876/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./876/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./876/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./876/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./876/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./876/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./876") = 0 mkdir("./877", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6842 ./strace-static-x86_64: Process 6842 attached [pid 6842] chdir("./877") = 0 [pid 6842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6842] setpgid(0, 0) = 0 [pid 6842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6842] write(3, "1000", 4) = 4 [pid 6842] close(3) = 0 [pid 6842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6842] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6842] memfd_create("syzkaller", 0) = 3 [pid 6842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6842] 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"..., 2097152) = 2097152 [pid 6842] munmap(0x7f320ee61000, 2097152) = 0 [pid 6842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6842] close(3) = 0 [pid 6842] mkdir("./file1", 0777) = 0 [pid 6842] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6842] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6842] chdir("./file1") = 0 [pid 6842] ioctl(4, LOOP_CLR_FD) = 0 [pid 6842] close(4) = 0 [pid 6842] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6842] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6842] ftruncate(5, 33587199) = 0 [ 240.106501][ T6842] loop0: detected capacity change from 0 to 4096 [ 240.118459][ T6842] NILFS (loop0): invalid segment: Checksum error in segment payload [ 240.126484][ T6842] NILFS (loop0): trying rollback from an earlier position [ 240.137571][ T6842] NILFS (loop0): recovery complete [ 240.143161][ T6843] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6842] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6842] exit_group(0) = ? [pid 6842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6842, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./877", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./877", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./877/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./877/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./877/binderfs") = 0 umount2("./877/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./877/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./877/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./877/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./877/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./877/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./877") = 0 mkdir("./878", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6844 ./strace-static-x86_64: Process 6844 attached [pid 6844] chdir("./878") = 0 [pid 6844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6844] setpgid(0, 0) = 0 [pid 6844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6844] write(3, "1000", 4) = 4 [pid 6844] close(3) = 0 [pid 6844] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6844] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6844] memfd_create("syzkaller", 0) = 3 [pid 6844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6844] 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"..., 2097152) = 2097152 [pid 6844] munmap(0x7f320ee61000, 2097152) = 0 [pid 6844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6844] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6844] close(3) = 0 [pid 6844] mkdir("./file1", 0777) = 0 [pid 6844] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6844] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6844] chdir("./file1") = 0 [pid 6844] ioctl(4, LOOP_CLR_FD) = 0 [pid 6844] close(4) = 0 [pid 6844] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6844] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6844] ftruncate(5, 33587199) = 0 [ 240.335203][ T6844] loop0: detected capacity change from 0 to 4096 [ 240.347233][ T6844] NILFS (loop0): invalid segment: Checksum error in segment payload [ 240.355489][ T6844] NILFS (loop0): trying rollback from an earlier position [ 240.366627][ T6844] NILFS (loop0): recovery complete [ 240.372415][ T6845] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6844] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6844] exit_group(0) = ? [pid 6844] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6844, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./878", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./878", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./878/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./878/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./878/binderfs") = 0 umount2("./878/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./878/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./878/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./878/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./878/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./878/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./878") = 0 mkdir("./879", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6846 ./strace-static-x86_64: Process 6846 attached [pid 6846] chdir("./879") = 0 [pid 6846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6846] setpgid(0, 0) = 0 [pid 6846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6846] write(3, "1000", 4) = 4 [pid 6846] close(3) = 0 [pid 6846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6846] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6846] memfd_create("syzkaller", 0) = 3 [pid 6846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6846] 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"..., 2097152) = 2097152 [pid 6846] munmap(0x7f320ee61000, 2097152) = 0 [pid 6846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6846] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6846] close(3) = 0 [pid 6846] mkdir("./file1", 0777) = 0 [pid 6846] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6846] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6846] chdir("./file1") = 0 [pid 6846] ioctl(4, LOOP_CLR_FD) = 0 [pid 6846] close(4) = 0 [pid 6846] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6846] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6846] ftruncate(5, 33587199) = 0 [ 240.562597][ T6846] loop0: detected capacity change from 0 to 4096 [ 240.574646][ T6846] NILFS (loop0): invalid segment: Checksum error in segment payload [ 240.582748][ T6846] NILFS (loop0): trying rollback from an earlier position [ 240.594200][ T6846] NILFS (loop0): recovery complete [ 240.599924][ T6847] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6846] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6846] exit_group(0) = ? [pid 6846] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6846, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./879", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./879", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./879/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./879/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./879/binderfs") = 0 umount2("./879/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./879/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./879/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./879/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./879/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./879/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./879") = 0 mkdir("./880", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6848 attached , child_tidptr=0x555555c06690) = 6848 [pid 6848] chdir("./880") = 0 [pid 6848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6848] setpgid(0, 0) = 0 [pid 6848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6848] write(3, "1000", 4) = 4 [pid 6848] close(3) = 0 [pid 6848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6848] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6848] memfd_create("syzkaller", 0) = 3 [pid 6848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6848] 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"..., 2097152) = 2097152 [pid 6848] munmap(0x7f320ee61000, 2097152) = 0 [pid 6848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6848] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6848] close(3) = 0 [pid 6848] mkdir("./file1", 0777) = 0 [pid 6848] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6848] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6848] chdir("./file1") = 0 [pid 6848] ioctl(4, LOOP_CLR_FD) = 0 [pid 6848] close(4) = 0 [pid 6848] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6848] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6848] ftruncate(5, 33587199) = 0 [ 240.788569][ T6848] loop0: detected capacity change from 0 to 4096 [ 240.800936][ T6848] NILFS (loop0): invalid segment: Checksum error in segment payload [ 240.808956][ T6848] NILFS (loop0): trying rollback from an earlier position [ 240.820858][ T6848] NILFS (loop0): recovery complete [ 240.826568][ T6849] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6848] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6848] exit_group(0) = ? [pid 6848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6848, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./880", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./880", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./880/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./880/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./880/binderfs") = 0 umount2("./880/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./880/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./880/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./880/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./880/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./880/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./880") = 0 mkdir("./881", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6850 ./strace-static-x86_64: Process 6850 attached [pid 6850] chdir("./881") = 0 [pid 6850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6850] setpgid(0, 0) = 0 [pid 6850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6850] write(3, "1000", 4) = 4 [pid 6850] close(3) = 0 [pid 6850] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6850] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6850] memfd_create("syzkaller", 0) = 3 [pid 6850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6850] 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"..., 2097152) = 2097152 [pid 6850] munmap(0x7f320ee61000, 2097152) = 0 [pid 6850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6850] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6850] close(3) = 0 [pid 6850] mkdir("./file1", 0777) = 0 [pid 6850] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6850] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6850] chdir("./file1") = 0 [pid 6850] ioctl(4, LOOP_CLR_FD) = 0 [pid 6850] close(4) = 0 [pid 6850] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6850] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6850] ftruncate(5, 33587199) = 0 [ 241.016984][ T6850] loop0: detected capacity change from 0 to 4096 [ 241.029615][ T6850] NILFS (loop0): invalid segment: Checksum error in segment payload [ 241.037975][ T6850] NILFS (loop0): trying rollback from an earlier position [ 241.049424][ T6850] NILFS (loop0): recovery complete [ 241.055362][ T6851] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6850] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6850] exit_group(0) = ? [pid 6850] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6850, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./881", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./881", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./881/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./881/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./881/binderfs") = 0 umount2("./881/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./881/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./881/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./881/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./881/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./881/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./881") = 0 mkdir("./882", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6852 attached , child_tidptr=0x555555c06690) = 6852 [pid 6852] chdir("./882") = 0 [pid 6852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6852] setpgid(0, 0) = 0 [pid 6852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6852] write(3, "1000", 4) = 4 [pid 6852] close(3) = 0 [pid 6852] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6852] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6852] memfd_create("syzkaller", 0) = 3 [pid 6852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6852] 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"..., 2097152) = 2097152 [pid 6852] munmap(0x7f320ee61000, 2097152) = 0 [pid 6852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6852] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6852] close(3) = 0 [pid 6852] mkdir("./file1", 0777) = 0 [pid 6852] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6852] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6852] chdir("./file1") = 0 [pid 6852] ioctl(4, LOOP_CLR_FD) = 0 [pid 6852] close(4) = 0 [pid 6852] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6852] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6852] ftruncate(5, 33587199) = 0 [ 241.244692][ T6852] loop0: detected capacity change from 0 to 4096 [ 241.257045][ T6852] NILFS (loop0): invalid segment: Checksum error in segment payload [ 241.265281][ T6852] NILFS (loop0): trying rollback from an earlier position [ 241.276523][ T6852] NILFS (loop0): recovery complete [ 241.282228][ T6853] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6852] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6852] exit_group(0) = ? [pid 6852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6852, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./882", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./882", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./882/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./882/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./882/binderfs") = 0 umount2("./882/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./882/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./882/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./882/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./882/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./882/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./882") = 0 mkdir("./883", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6854 ./strace-static-x86_64: Process 6854 attached [pid 6854] chdir("./883") = 0 [pid 6854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6854] setpgid(0, 0) = 0 [pid 6854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6854] write(3, "1000", 4) = 4 [pid 6854] close(3) = 0 [pid 6854] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6854] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6854] memfd_create("syzkaller", 0) = 3 [pid 6854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6854] 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"..., 2097152) = 2097152 [pid 6854] munmap(0x7f320ee61000, 2097152) = 0 [pid 6854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6854] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6854] close(3) = 0 [pid 6854] mkdir("./file1", 0777) = 0 [pid 6854] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6854] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6854] chdir("./file1") = 0 [pid 6854] ioctl(4, LOOP_CLR_FD) = 0 [pid 6854] close(4) = 0 [pid 6854] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6854] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6854] ftruncate(5, 33587199) = 0 [ 241.463478][ T6854] loop0: detected capacity change from 0 to 4096 [ 241.475260][ T6854] NILFS (loop0): invalid segment: Checksum error in segment payload [ 241.483277][ T6854] NILFS (loop0): trying rollback from an earlier position [ 241.494398][ T6854] NILFS (loop0): recovery complete [ 241.500099][ T6855] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6854] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6854] exit_group(0) = ? [pid 6854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6854, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./883", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./883", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./883/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./883/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./883/binderfs") = 0 umount2("./883/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./883/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./883/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./883/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./883/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./883/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./883") = 0 mkdir("./884", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6856 attached , child_tidptr=0x555555c06690) = 6856 [pid 6856] chdir("./884") = 0 [pid 6856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6856] setpgid(0, 0) = 0 [pid 6856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6856] write(3, "1000", 4) = 4 [pid 6856] close(3) = 0 [pid 6856] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6856] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6856] memfd_create("syzkaller", 0) = 3 [pid 6856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6856] 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"..., 2097152) = 2097152 [pid 6856] munmap(0x7f320ee61000, 2097152) = 0 [pid 6856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6856] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6856] close(3) = 0 [pid 6856] mkdir("./file1", 0777) = 0 [pid 6856] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6856] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6856] chdir("./file1") = 0 [pid 6856] ioctl(4, LOOP_CLR_FD) = 0 [pid 6856] close(4) = 0 [pid 6856] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6856] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6856] ftruncate(5, 33587199) = 0 [ 241.697293][ T6856] loop0: detected capacity change from 0 to 4096 [ 241.709682][ T6856] NILFS (loop0): invalid segment: Checksum error in segment payload [ 241.717745][ T6856] NILFS (loop0): trying rollback from an earlier position [ 241.728945][ T6856] NILFS (loop0): recovery complete [ 241.734896][ T6857] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6856] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6856] exit_group(0) = ? [pid 6856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6856, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./884", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./884", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./884/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./884/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./884/binderfs") = 0 umount2("./884/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./884/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./884/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./884/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./884/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./884/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./884") = 0 mkdir("./885", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6858 attached [pid 6858] chdir("./885") = 0 [pid 6858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6858] setpgid(0, 0) = 0 [pid 6858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6858] write(3, "1000", 4) = 4 [pid 6858] close(3) = 0 [pid 6858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6858] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6858] memfd_create("syzkaller", 0) = 3 [pid 6858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6858 [pid 6858] 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"..., 2097152) = 2097152 [pid 6858] munmap(0x7f320ee61000, 2097152) = 0 [pid 6858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6858] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6858] close(3) = 0 [pid 6858] mkdir("./file1", 0777) = 0 [pid 6858] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6858] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6858] chdir("./file1") = 0 [pid 6858] ioctl(4, LOOP_CLR_FD) = 0 [pid 6858] close(4) = 0 [pid 6858] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6858] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6858] ftruncate(5, 33587199) = 0 [ 241.925199][ T6858] loop0: detected capacity change from 0 to 4096 [ 241.937808][ T6858] NILFS (loop0): invalid segment: Checksum error in segment payload [ 241.946002][ T6858] NILFS (loop0): trying rollback from an earlier position [ 241.957580][ T6858] NILFS (loop0): recovery complete [ 241.963528][ T6859] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6858] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6858] exit_group(0) = ? [pid 6858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6858, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./885", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./885", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./885/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./885/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./885/binderfs") = 0 umount2("./885/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./885/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./885/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./885/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./885/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./885/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./885") = 0 mkdir("./886", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6860 ./strace-static-x86_64: Process 6860 attached [pid 6860] chdir("./886") = 0 [pid 6860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6860] setpgid(0, 0) = 0 [pid 6860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6860] write(3, "1000", 4) = 4 [pid 6860] close(3) = 0 [pid 6860] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6860] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6860] memfd_create("syzkaller", 0) = 3 [pid 6860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6860] 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"..., 2097152) = 2097152 [pid 6860] munmap(0x7f320ee61000, 2097152) = 0 [pid 6860] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6860] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6860] close(3) = 0 [pid 6860] mkdir("./file1", 0777) = 0 [pid 6860] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6860] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6860] chdir("./file1") = 0 [pid 6860] ioctl(4, LOOP_CLR_FD) = 0 [pid 6860] close(4) = 0 [pid 6860] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6860] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6860] ftruncate(5, 33587199) = 0 [ 242.138665][ T6860] loop0: detected capacity change from 0 to 4096 [ 242.151625][ T6860] NILFS (loop0): invalid segment: Checksum error in segment payload [ 242.159629][ T6860] NILFS (loop0): trying rollback from an earlier position [ 242.171001][ T6860] NILFS (loop0): recovery complete [ 242.176683][ T6861] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6860] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6860] exit_group(0) = ? [pid 6860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6860, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./886", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./886", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./886/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./886/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./886/binderfs") = 0 umount2("./886/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./886/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./886/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./886/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./886/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./886/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./886") = 0 mkdir("./887", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6862 ./strace-static-x86_64: Process 6862 attached [pid 6862] chdir("./887") = 0 [pid 6862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6862] setpgid(0, 0) = 0 [pid 6862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6862] write(3, "1000", 4) = 4 [pid 6862] close(3) = 0 [pid 6862] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6862] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6862] memfd_create("syzkaller", 0) = 3 [pid 6862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6862] 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"..., 2097152) = 2097152 [pid 6862] munmap(0x7f320ee61000, 2097152) = 0 [pid 6862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6862] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6862] close(3) = 0 [pid 6862] mkdir("./file1", 0777) = 0 [pid 6862] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6862] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6862] chdir("./file1") = 0 [pid 6862] ioctl(4, LOOP_CLR_FD) = 0 [pid 6862] close(4) = 0 [pid 6862] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6862] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6862] ftruncate(5, 33587199) = 0 [ 242.364678][ T6862] loop0: detected capacity change from 0 to 4096 [ 242.376573][ T6862] NILFS (loop0): invalid segment: Checksum error in segment payload [ 242.384620][ T6862] NILFS (loop0): trying rollback from an earlier position [ 242.395578][ T6862] NILFS (loop0): recovery complete [ 242.401313][ T6863] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6862] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6862] exit_group(0) = ? [pid 6862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6862, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./887", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./887", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./887/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./887/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./887/binderfs") = 0 umount2("./887/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./887/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./887/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./887/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./887/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./887/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./887") = 0 mkdir("./888", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6864 ./strace-static-x86_64: Process 6864 attached [pid 6864] chdir("./888") = 0 [pid 6864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6864] setpgid(0, 0) = 0 [pid 6864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6864] write(3, "1000", 4) = 4 [pid 6864] close(3) = 0 [pid 6864] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6864] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6864] memfd_create("syzkaller", 0) = 3 [pid 6864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6864] 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"..., 2097152) = 2097152 [pid 6864] munmap(0x7f320ee61000, 2097152) = 0 [pid 6864] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6864] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6864] close(3) = 0 [pid 6864] mkdir("./file1", 0777) = 0 [pid 6864] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6864] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6864] chdir("./file1") = 0 [pid 6864] ioctl(4, LOOP_CLR_FD) = 0 [pid 6864] close(4) = 0 [pid 6864] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6864] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6864] ftruncate(5, 33587199) = 0 [ 242.605180][ T6864] loop0: detected capacity change from 0 to 4096 [ 242.618257][ T6864] NILFS (loop0): invalid segment: Checksum error in segment payload [ 242.626285][ T6864] NILFS (loop0): trying rollback from an earlier position [ 242.637811][ T6864] NILFS (loop0): recovery complete [ 242.643640][ T6865] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6864] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6864] exit_group(0) = ? [pid 6864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6864, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./888", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./888", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./888/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./888/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./888/binderfs") = 0 umount2("./888/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./888/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./888/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./888/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./888/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./888/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./888") = 0 mkdir("./889", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6866 ./strace-static-x86_64: Process 6866 attached [pid 6866] chdir("./889") = 0 [pid 6866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6866] setpgid(0, 0) = 0 [pid 6866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6866] write(3, "1000", 4) = 4 [pid 6866] close(3) = 0 [pid 6866] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6866] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6866] memfd_create("syzkaller", 0) = 3 [pid 6866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6866] 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"..., 2097152) = 2097152 [pid 6866] munmap(0x7f320ee61000, 2097152) = 0 [pid 6866] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6866] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6866] close(3) = 0 [pid 6866] mkdir("./file1", 0777) = 0 [pid 6866] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6866] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6866] chdir("./file1") = 0 [pid 6866] ioctl(4, LOOP_CLR_FD) = 0 [pid 6866] close(4) = 0 [pid 6866] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6866] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6866] ftruncate(5, 33587199) = 0 [ 242.820707][ T6866] loop0: detected capacity change from 0 to 4096 [ 242.833289][ T6866] NILFS (loop0): invalid segment: Checksum error in segment payload [ 242.841385][ T6866] NILFS (loop0): trying rollback from an earlier position [ 242.852646][ T6866] NILFS (loop0): recovery complete [ 242.858366][ T6867] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6866] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6866] exit_group(0) = ? [pid 6866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6866, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./889", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./889", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./889/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./889/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./889/binderfs") = 0 umount2("./889/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./889/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./889/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./889/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./889/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./889/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./889") = 0 mkdir("./890", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6868 ./strace-static-x86_64: Process 6868 attached [pid 6868] chdir("./890") = 0 [pid 6868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6868] setpgid(0, 0) = 0 [pid 6868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6868] write(3, "1000", 4) = 4 [pid 6868] close(3) = 0 [pid 6868] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6868] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6868] memfd_create("syzkaller", 0) = 3 [pid 6868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6868] 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"..., 2097152) = 2097152 [pid 6868] munmap(0x7f320ee61000, 2097152) = 0 [pid 6868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6868] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6868] close(3) = 0 [pid 6868] mkdir("./file1", 0777) = 0 [pid 6868] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6868] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6868] chdir("./file1") = 0 [pid 6868] ioctl(4, LOOP_CLR_FD) = 0 [pid 6868] close(4) = 0 [pid 6868] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6868] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6868] ftruncate(5, 33587199) = 0 [ 243.040950][ T6868] loop0: detected capacity change from 0 to 4096 [ 243.054018][ T6868] NILFS (loop0): invalid segment: Checksum error in segment payload [ 243.062243][ T6868] NILFS (loop0): trying rollback from an earlier position [ 243.074518][ T6868] NILFS (loop0): recovery complete [ 243.080335][ T6869] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6868] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6868] exit_group(0) = ? [pid 6868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6868, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./890", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./890", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./890/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./890/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./890/binderfs") = 0 umount2("./890/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./890/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./890/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./890/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./890/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./890/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./890") = 0 mkdir("./891", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6870 attached [pid 6870] chdir("./891") = 0 [pid 6870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6870] setpgid(0, 0) = 0 [pid 6870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6870 [pid 6870] <... openat resumed>) = 3 [pid 6870] write(3, "1000", 4) = 4 [pid 6870] close(3) = 0 [pid 6870] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6870] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6870] memfd_create("syzkaller", 0) = 3 [pid 6870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6870] 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"..., 2097152) = 2097152 [pid 6870] munmap(0x7f320ee61000, 2097152) = 0 [pid 6870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6870] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6870] close(3) = 0 [pid 6870] mkdir("./file1", 0777) = 0 [pid 6870] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6870] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6870] chdir("./file1") = 0 [pid 6870] ioctl(4, LOOP_CLR_FD) = 0 [pid 6870] close(4) = 0 [pid 6870] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6870] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6870] ftruncate(5, 33587199) = 0 [ 243.265601][ T6870] loop0: detected capacity change from 0 to 4096 [ 243.277929][ T6870] NILFS (loop0): invalid segment: Checksum error in segment payload [ 243.285972][ T6870] NILFS (loop0): trying rollback from an earlier position [ 243.297167][ T6870] NILFS (loop0): recovery complete [ 243.303001][ T6871] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6870] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6870] exit_group(0) = ? [pid 6870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6870, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./891", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./891", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./891/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./891/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./891/binderfs") = 0 umount2("./891/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./891/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./891/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./891/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./891/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./891/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./891") = 0 mkdir("./892", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6872 ./strace-static-x86_64: Process 6872 attached [pid 6872] chdir("./892") = 0 [pid 6872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6872] setpgid(0, 0) = 0 [pid 6872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6872] write(3, "1000", 4) = 4 [pid 6872] close(3) = 0 [pid 6872] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6872] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6872] memfd_create("syzkaller", 0) = 3 [pid 6872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6872] 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"..., 2097152) = 2097152 [pid 6872] munmap(0x7f320ee61000, 2097152) = 0 [pid 6872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6872] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6872] close(3) = 0 [pid 6872] mkdir("./file1", 0777) = 0 [pid 6872] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6872] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6872] chdir("./file1") = 0 [pid 6872] ioctl(4, LOOP_CLR_FD) = 0 [pid 6872] close(4) = 0 [pid 6872] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6872] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6872] ftruncate(5, 33587199) = 0 [ 243.481680][ T6872] loop0: detected capacity change from 0 to 4096 [ 243.493903][ T6872] NILFS (loop0): invalid segment: Checksum error in segment payload [ 243.501952][ T6872] NILFS (loop0): trying rollback from an earlier position [ 243.513511][ T6872] NILFS (loop0): recovery complete [ 243.519340][ T6873] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6872] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6872] exit_group(0) = ? [pid 6872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6872, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./892", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./892", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./892/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./892/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./892/binderfs") = 0 umount2("./892/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./892/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./892/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./892/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./892/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./892/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./892") = 0 mkdir("./893", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6874 attached , child_tidptr=0x555555c06690) = 6874 [pid 6874] chdir("./893") = 0 [pid 6874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6874] setpgid(0, 0) = 0 [pid 6874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6874] write(3, "1000", 4) = 4 [pid 6874] close(3) = 0 [pid 6874] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6874] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6874] memfd_create("syzkaller", 0) = 3 [pid 6874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6874] 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"..., 2097152) = 2097152 [pid 6874] munmap(0x7f320ee61000, 2097152) = 0 [pid 6874] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6874] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6874] close(3) = 0 [pid 6874] mkdir("./file1", 0777) = 0 [pid 6874] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6874] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6874] chdir("./file1") = 0 [pid 6874] ioctl(4, LOOP_CLR_FD) = 0 [pid 6874] close(4) = 0 [pid 6874] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6874] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6874] ftruncate(5, 33587199) = 0 [ 243.712944][ T6874] loop0: detected capacity change from 0 to 4096 [ 243.725077][ T6874] NILFS (loop0): invalid segment: Checksum error in segment payload [ 243.733284][ T6874] NILFS (loop0): trying rollback from an earlier position [ 243.744905][ T6874] NILFS (loop0): recovery complete [ 243.750723][ T6875] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6874] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6874] exit_group(0) = ? [pid 6874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6874, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./893", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./893", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./893/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./893/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./893/binderfs") = 0 umount2("./893/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./893/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./893/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./893/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./893/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./893/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./893") = 0 mkdir("./894", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6876 attached [pid 6876] chdir("./894") = 0 [pid 6876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6876] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6876 [pid 6876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6876] write(3, "1000", 4) = 4 [pid 6876] close(3) = 0 [pid 6876] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6876] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6876] memfd_create("syzkaller", 0) = 3 [pid 6876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6876] 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"..., 2097152) = 2097152 [pid 6876] munmap(0x7f320ee61000, 2097152) = 0 [pid 6876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6876] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6876] close(3) = 0 [pid 6876] mkdir("./file1", 0777) = 0 [pid 6876] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6876] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6876] chdir("./file1") = 0 [pid 6876] ioctl(4, LOOP_CLR_FD) = 0 [pid 6876] close(4) = 0 [pid 6876] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6876] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6876] ftruncate(5, 33587199) = 0 [ 243.940136][ T6876] loop0: detected capacity change from 0 to 4096 [ 243.951750][ T6876] NILFS (loop0): invalid segment: Checksum error in segment payload [ 243.959762][ T6876] NILFS (loop0): trying rollback from an earlier position [ 243.970845][ T6876] NILFS (loop0): recovery complete [ 243.976491][ T6877] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6876] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6876] exit_group(0) = ? [pid 6876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6876, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./894", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./894", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./894/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./894/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./894/binderfs") = 0 umount2("./894/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./894/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./894/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./894/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./894/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./894/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./894") = 0 mkdir("./895", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6878 ./strace-static-x86_64: Process 6878 attached [pid 6878] chdir("./895") = 0 [pid 6878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6878] setpgid(0, 0) = 0 [pid 6878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6878] write(3, "1000", 4) = 4 [pid 6878] close(3) = 0 [pid 6878] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6878] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6878] memfd_create("syzkaller", 0) = 3 [pid 6878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6878] 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"..., 2097152) = 2097152 [pid 6878] munmap(0x7f320ee61000, 2097152) = 0 [pid 6878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6878] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6878] close(3) = 0 [pid 6878] mkdir("./file1", 0777) = 0 [pid 6878] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6878] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6878] chdir("./file1") = 0 [pid 6878] ioctl(4, LOOP_CLR_FD) = 0 [pid 6878] close(4) = 0 [pid 6878] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6878] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6878] ftruncate(5, 33587199) = 0 [ 244.168854][ T6878] loop0: detected capacity change from 0 to 4096 [ 244.179916][ T6878] NILFS (loop0): invalid segment: Checksum error in segment payload [ 244.187977][ T6878] NILFS (loop0): trying rollback from an earlier position [ 244.198500][ T6878] NILFS (loop0): recovery complete [ 244.204351][ T6879] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6878] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6878] exit_group(0) = ? [pid 6878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6878, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./895", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./895", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./895/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./895/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./895/binderfs") = 0 umount2("./895/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./895/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./895/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./895/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./895/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./895/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./895") = 0 mkdir("./896", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6880 ./strace-static-x86_64: Process 6880 attached [pid 6880] chdir("./896") = 0 [pid 6880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6880] setpgid(0, 0) = 0 [pid 6880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6880] write(3, "1000", 4) = 4 [pid 6880] close(3) = 0 [pid 6880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6880] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6880] memfd_create("syzkaller", 0) = 3 [pid 6880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6880] 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"..., 2097152) = 2097152 [pid 6880] munmap(0x7f320ee61000, 2097152) = 0 [pid 6880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6880] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6880] close(3) = 0 [pid 6880] mkdir("./file1", 0777) = 0 [pid 6880] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6880] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6880] chdir("./file1") = 0 [pid 6880] ioctl(4, LOOP_CLR_FD) = 0 [pid 6880] close(4) = 0 [pid 6880] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6880] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6880] ftruncate(5, 33587199) = 0 [ 244.397964][ T6880] loop0: detected capacity change from 0 to 4096 [ 244.409330][ T6880] NILFS (loop0): invalid segment: Checksum error in segment payload [ 244.417422][ T6880] NILFS (loop0): trying rollback from an earlier position [ 244.429012][ T6880] NILFS (loop0): recovery complete [ 244.434768][ T6881] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6880] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6880] exit_group(0) = ? [pid 6880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6880, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./896", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./896", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./896/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./896/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./896/binderfs") = 0 umount2("./896/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./896/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./896/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./896/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./896/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./896/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./896") = 0 mkdir("./897", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6882 ./strace-static-x86_64: Process 6882 attached [pid 6882] chdir("./897") = 0 [pid 6882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6882] setpgid(0, 0) = 0 [pid 6882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6882] write(3, "1000", 4) = 4 [pid 6882] close(3) = 0 [pid 6882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6882] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6882] memfd_create("syzkaller", 0) = 3 [pid 6882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6882] 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"..., 2097152) = 2097152 [pid 6882] munmap(0x7f320ee61000, 2097152) = 0 [pid 6882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6882] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6882] close(3) = 0 [pid 6882] mkdir("./file1", 0777) = 0 [pid 6882] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6882] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6882] chdir("./file1") = 0 [pid 6882] ioctl(4, LOOP_CLR_FD) = 0 [pid 6882] close(4) = 0 [pid 6882] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6882] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6882] ftruncate(5, 33587199) = 0 [ 244.629554][ T6882] loop0: detected capacity change from 0 to 4096 [ 244.641651][ T6882] NILFS (loop0): invalid segment: Checksum error in segment payload [ 244.649707][ T6882] NILFS (loop0): trying rollback from an earlier position [ 244.660950][ T6882] NILFS (loop0): recovery complete [ 244.666748][ T6883] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6882] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6882] exit_group(0) = ? [pid 6882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6882, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./897", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./897", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./897/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./897/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./897/binderfs") = 0 umount2("./897/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./897/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./897/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./897/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./897/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./897/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./897") = 0 mkdir("./898", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6884 attached , child_tidptr=0x555555c06690) = 6884 [pid 6884] chdir("./898") = 0 [pid 6884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6884] setpgid(0, 0) = 0 [pid 6884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6884] write(3, "1000", 4) = 4 [pid 6884] close(3) = 0 [pid 6884] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6884] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6884] memfd_create("syzkaller", 0) = 3 [pid 6884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6884] 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"..., 2097152) = 2097152 [pid 6884] munmap(0x7f320ee61000, 2097152) = 0 [pid 6884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6884] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6884] close(3) = 0 [pid 6884] mkdir("./file1", 0777) = 0 [pid 6884] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6884] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6884] chdir("./file1") = 0 [pid 6884] ioctl(4, LOOP_CLR_FD) = 0 [pid 6884] close(4) = 0 [pid 6884] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6884] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6884] ftruncate(5, 33587199) = 0 [ 244.857056][ T6884] loop0: detected capacity change from 0 to 4096 [ 244.869360][ T6884] NILFS (loop0): invalid segment: Checksum error in segment payload [ 244.877545][ T6884] NILFS (loop0): trying rollback from an earlier position [ 244.889377][ T6884] NILFS (loop0): recovery complete [ 244.895101][ T6885] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6884] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6884] exit_group(0) = ? [pid 6884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6884, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./898", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./898", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./898/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./898/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./898/binderfs") = 0 umount2("./898/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./898/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./898/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./898/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./898/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./898/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./898") = 0 mkdir("./899", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6886 ./strace-static-x86_64: Process 6886 attached [pid 6886] chdir("./899") = 0 [pid 6886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6886] setpgid(0, 0) = 0 [pid 6886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6886] write(3, "1000", 4) = 4 [pid 6886] close(3) = 0 [pid 6886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6886] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6886] memfd_create("syzkaller", 0) = 3 [pid 6886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6886] 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"..., 2097152) = 2097152 [pid 6886] munmap(0x7f320ee61000, 2097152) = 0 [pid 6886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6886] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6886] close(3) = 0 [pid 6886] mkdir("./file1", 0777) = 0 [pid 6886] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6886] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6886] chdir("./file1") = 0 [pid 6886] ioctl(4, LOOP_CLR_FD) = 0 [pid 6886] close(4) = 0 [pid 6886] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6886] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6886] ftruncate(5, 33587199) = 0 [ 245.082928][ T6886] loop0: detected capacity change from 0 to 4096 [ 245.094841][ T6886] NILFS (loop0): invalid segment: Checksum error in segment payload [ 245.102900][ T6886] NILFS (loop0): trying rollback from an earlier position [ 245.113970][ T6886] NILFS (loop0): recovery complete [ 245.119664][ T6887] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6886] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6886] exit_group(0) = ? [pid 6886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6886, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./899", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./899", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./899/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./899/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./899/binderfs") = 0 umount2("./899/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./899/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./899/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./899/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./899/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./899/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./899") = 0 mkdir("./900", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6888 ./strace-static-x86_64: Process 6888 attached [pid 6888] chdir("./900") = 0 [pid 6888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6888] setpgid(0, 0) = 0 [pid 6888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6888] write(3, "1000", 4) = 4 [pid 6888] close(3) = 0 [pid 6888] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6888] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6888] memfd_create("syzkaller", 0) = 3 [pid 6888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6888] 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"..., 2097152) = 2097152 [pid 6888] munmap(0x7f320ee61000, 2097152) = 0 [pid 6888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6888] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6888] close(3) = 0 [pid 6888] mkdir("./file1", 0777) = 0 [pid 6888] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6888] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6888] chdir("./file1") = 0 [pid 6888] ioctl(4, LOOP_CLR_FD) = 0 [pid 6888] close(4) = 0 [pid 6888] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6888] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6888] ftruncate(5, 33587199) = 0 [ 245.312082][ T6888] loop0: detected capacity change from 0 to 4096 [ 245.324635][ T6888] NILFS (loop0): invalid segment: Checksum error in segment payload [ 245.332818][ T6888] NILFS (loop0): trying rollback from an earlier position [ 245.344018][ T6888] NILFS (loop0): recovery complete [ 245.349620][ T6889] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6888] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6888] exit_group(0) = ? [pid 6888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6888, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./900", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./900", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./900/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./900/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./900/binderfs") = 0 umount2("./900/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./900/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./900/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./900/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./900/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./900/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./900") = 0 mkdir("./901", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6890 ./strace-static-x86_64: Process 6890 attached [pid 6890] chdir("./901") = 0 [pid 6890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6890] setpgid(0, 0) = 0 [pid 6890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6890] write(3, "1000", 4) = 4 [pid 6890] close(3) = 0 [pid 6890] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6890] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6890] memfd_create("syzkaller", 0) = 3 [pid 6890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6890] 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"..., 2097152) = 2097152 [pid 6890] munmap(0x7f320ee61000, 2097152) = 0 [pid 6890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6890] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6890] close(3) = 0 [pid 6890] mkdir("./file1", 0777) = 0 [pid 6890] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6890] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6890] chdir("./file1") = 0 [pid 6890] ioctl(4, LOOP_CLR_FD) = 0 [pid 6890] close(4) = 0 [pid 6890] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6890] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6890] ftruncate(5, 33587199) = 0 [ 245.525036][ T6890] loop0: detected capacity change from 0 to 4096 [ 245.539304][ T6890] NILFS (loop0): invalid segment: Checksum error in segment payload [ 245.547604][ T6890] NILFS (loop0): trying rollback from an earlier position [ 245.558678][ T6890] NILFS (loop0): recovery complete [ 245.564357][ T6891] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6890] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6890] exit_group(0) = ? [pid 6890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6890, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./901", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./901", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./901/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./901/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./901/binderfs") = 0 umount2("./901/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./901/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./901/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./901/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./901/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./901/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./901") = 0 mkdir("./902", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6892 ./strace-static-x86_64: Process 6892 attached [pid 6892] chdir("./902") = 0 [pid 6892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6892] setpgid(0, 0) = 0 [pid 6892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6892] write(3, "1000", 4) = 4 [pid 6892] close(3) = 0 [pid 6892] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6892] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6892] memfd_create("syzkaller", 0) = 3 [pid 6892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6892] 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"..., 2097152) = 2097152 [pid 6892] munmap(0x7f320ee61000, 2097152) = 0 [pid 6892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6892] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6892] close(3) = 0 [pid 6892] mkdir("./file1", 0777) = 0 [pid 6892] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6892] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6892] chdir("./file1") = 0 [pid 6892] ioctl(4, LOOP_CLR_FD) = 0 [pid 6892] close(4) = 0 [pid 6892] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6892] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6892] ftruncate(5, 33587199) = 0 [ 245.753031][ T6892] loop0: detected capacity change from 0 to 4096 [ 245.764999][ T6892] NILFS (loop0): invalid segment: Checksum error in segment payload [ 245.773039][ T6892] NILFS (loop0): trying rollback from an earlier position [ 245.783962][ T6892] NILFS (loop0): recovery complete [ 245.789602][ T6893] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6892] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6892] exit_group(0) = ? [pid 6892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6892, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./902", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./902", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./902/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./902/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./902/binderfs") = 0 umount2("./902/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./902/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./902/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./902/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./902/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./902/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./902") = 0 mkdir("./903", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6894 ./strace-static-x86_64: Process 6894 attached [pid 6894] chdir("./903") = 0 [pid 6894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6894] setpgid(0, 0) = 0 [pid 6894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6894] write(3, "1000", 4) = 4 [pid 6894] close(3) = 0 [pid 6894] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6894] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6894] memfd_create("syzkaller", 0) = 3 [pid 6894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6894] 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"..., 2097152) = 2097152 [pid 6894] munmap(0x7f320ee61000, 2097152) = 0 [pid 6894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6894] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6894] close(3) = 0 [pid 6894] mkdir("./file1", 0777) = 0 [pid 6894] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6894] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6894] chdir("./file1") = 0 [pid 6894] ioctl(4, LOOP_CLR_FD) = 0 [pid 6894] close(4) = 0 [pid 6894] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6894] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6894] ftruncate(5, 33587199) = 0 [ 245.974729][ T6894] loop0: detected capacity change from 0 to 4096 [ 245.987394][ T6894] NILFS (loop0): invalid segment: Checksum error in segment payload [ 245.995755][ T6894] NILFS (loop0): trying rollback from an earlier position [ 246.007634][ T6894] NILFS (loop0): recovery complete [ 246.013356][ T6895] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6894] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6894] exit_group(0) = ? [pid 6894] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6894, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./903", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./903", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./903/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./903/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./903/binderfs") = 0 umount2("./903/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./903/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./903/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./903/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./903/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./903/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./903") = 0 mkdir("./904", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6896 attached , child_tidptr=0x555555c06690) = 6896 [pid 6896] chdir("./904") = 0 [pid 6896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6896] setpgid(0, 0) = 0 [pid 6896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6896] write(3, "1000", 4) = 4 [pid 6896] close(3) = 0 [pid 6896] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6896] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6896] memfd_create("syzkaller", 0) = 3 [pid 6896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6896] 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"..., 2097152) = 2097152 [pid 6896] munmap(0x7f320ee61000, 2097152) = 0 [pid 6896] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6896] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6896] close(3) = 0 [pid 6896] mkdir("./file1", 0777) = 0 [pid 6896] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6896] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6896] chdir("./file1") = 0 [pid 6896] ioctl(4, LOOP_CLR_FD) = 0 [pid 6896] close(4) = 0 [pid 6896] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6896] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6896] ftruncate(5, 33587199) = 0 [ 246.209468][ T6896] loop0: detected capacity change from 0 to 4096 [ 246.222019][ T6896] NILFS (loop0): invalid segment: Checksum error in segment payload [ 246.230081][ T6896] NILFS (loop0): trying rollback from an earlier position [ 246.241218][ T6896] NILFS (loop0): recovery complete [ 246.246770][ T6897] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6896] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6896] exit_group(0) = ? [pid 6896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6896, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./904", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./904", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./904/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./904/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./904/binderfs") = 0 umount2("./904/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./904/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./904/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./904/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./904/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./904/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./904") = 0 mkdir("./905", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6898 ./strace-static-x86_64: Process 6898 attached [pid 6898] chdir("./905") = 0 [pid 6898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6898] setpgid(0, 0) = 0 [pid 6898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6898] write(3, "1000", 4) = 4 [pid 6898] close(3) = 0 [pid 6898] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6898] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6898] memfd_create("syzkaller", 0) = 3 [pid 6898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6898] 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"..., 2097152) = 2097152 [pid 6898] munmap(0x7f320ee61000, 2097152) = 0 [pid 6898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6898] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6898] close(3) = 0 [pid 6898] mkdir("./file1", 0777) = 0 [pid 6898] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6898] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6898] chdir("./file1") = 0 [pid 6898] ioctl(4, LOOP_CLR_FD) = 0 [pid 6898] close(4) = 0 [pid 6898] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6898] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6898] ftruncate(5, 33587199) = 0 [ 246.435602][ T6898] loop0: detected capacity change from 0 to 4096 [ 246.447217][ T6898] NILFS (loop0): invalid segment: Checksum error in segment payload [ 246.455270][ T6898] NILFS (loop0): trying rollback from an earlier position [ 246.467097][ T6898] NILFS (loop0): recovery complete [ 246.472705][ T6899] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6898] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6898] exit_group(0) = ? [pid 6898] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6898, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./905", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./905", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./905/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./905/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./905/binderfs") = 0 umount2("./905/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./905/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./905/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./905/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./905/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./905/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./905") = 0 mkdir("./906", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6900 ./strace-static-x86_64: Process 6900 attached [pid 6900] chdir("./906") = 0 [pid 6900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6900] setpgid(0, 0) = 0 [pid 6900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6900] write(3, "1000", 4) = 4 [pid 6900] close(3) = 0 [pid 6900] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6900] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6900] memfd_create("syzkaller", 0) = 3 [pid 6900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6900] 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"..., 2097152) = 2097152 [pid 6900] munmap(0x7f320ee61000, 2097152) = 0 [pid 6900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6900] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6900] close(3) = 0 [pid 6900] mkdir("./file1", 0777) = 0 [pid 6900] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6900] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6900] chdir("./file1") = 0 [pid 6900] ioctl(4, LOOP_CLR_FD) = 0 [pid 6900] close(4) = 0 [pid 6900] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6900] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6900] ftruncate(5, 33587199) = 0 [ 246.653889][ T6900] loop0: detected capacity change from 0 to 4096 [ 246.666192][ T6900] NILFS (loop0): invalid segment: Checksum error in segment payload [ 246.674245][ T6900] NILFS (loop0): trying rollback from an earlier position [ 246.685567][ T6900] NILFS (loop0): recovery complete [ 246.691388][ T6901] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6900] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6900] exit_group(0) = ? [pid 6900] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6900, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./906", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./906", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./906/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./906/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./906/binderfs") = 0 umount2("./906/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./906/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./906/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./906/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./906/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./906/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./906") = 0 mkdir("./907", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6902 ./strace-static-x86_64: Process 6902 attached [pid 6902] chdir("./907") = 0 [pid 6902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6902] setpgid(0, 0) = 0 [pid 6902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6902] write(3, "1000", 4) = 4 [pid 6902] close(3) = 0 [pid 6902] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6902] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6902] memfd_create("syzkaller", 0) = 3 [pid 6902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6902] 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"..., 2097152) = 2097152 [pid 6902] munmap(0x7f320ee61000, 2097152) = 0 [pid 6902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6902] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6902] close(3) = 0 [pid 6902] mkdir("./file1", 0777) = 0 [pid 6902] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6902] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6902] chdir("./file1") = 0 [pid 6902] ioctl(4, LOOP_CLR_FD) = 0 [pid 6902] close(4) = 0 [pid 6902] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6902] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6902] ftruncate(5, 33587199) = 0 [ 246.876512][ T6902] loop0: detected capacity change from 0 to 4096 [ 246.889278][ T6902] NILFS (loop0): invalid segment: Checksum error in segment payload [ 246.897394][ T6902] NILFS (loop0): trying rollback from an earlier position [ 246.909829][ T6902] NILFS (loop0): recovery complete [ 246.915654][ T6903] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6902] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6902] exit_group(0) = ? [pid 6902] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6902, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./907", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./907", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./907/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./907/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./907/binderfs") = 0 umount2("./907/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./907/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./907/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./907/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./907/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./907/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./907") = 0 mkdir("./908", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6904 ./strace-static-x86_64: Process 6904 attached [pid 6904] chdir("./908") = 0 [pid 6904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6904] setpgid(0, 0) = 0 [pid 6904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6904] write(3, "1000", 4) = 4 [pid 6904] close(3) = 0 [pid 6904] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6904] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6904] memfd_create("syzkaller", 0) = 3 [pid 6904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6904] 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"..., 2097152) = 2097152 [pid 6904] munmap(0x7f320ee61000, 2097152) = 0 [pid 6904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6904] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6904] close(3) = 0 [pid 6904] mkdir("./file1", 0777) = 0 [pid 6904] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6904] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6904] chdir("./file1") = 0 [pid 6904] ioctl(4, LOOP_CLR_FD) = 0 [pid 6904] close(4) = 0 [pid 6904] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6904] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6904] ftruncate(5, 33587199) = 0 [ 247.103710][ T6904] loop0: detected capacity change from 0 to 4096 [ 247.115669][ T6904] NILFS (loop0): invalid segment: Checksum error in segment payload [ 247.123694][ T6904] NILFS (loop0): trying rollback from an earlier position [ 247.135012][ T6904] NILFS (loop0): recovery complete [ 247.141002][ T6905] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6904] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6904] exit_group(0) = ? [pid 6904] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6904, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./908", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./908", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./908/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./908/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./908/binderfs") = 0 umount2("./908/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./908/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./908/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./908/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./908/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./908/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./908") = 0 mkdir("./909", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6906 ./strace-static-x86_64: Process 6906 attached [pid 6906] chdir("./909") = 0 [pid 6906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6906] setpgid(0, 0) = 0 [pid 6906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6906] write(3, "1000", 4) = 4 [pid 6906] close(3) = 0 [pid 6906] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6906] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6906] memfd_create("syzkaller", 0) = 3 [pid 6906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6906] 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"..., 2097152) = 2097152 [pid 6906] munmap(0x7f320ee61000, 2097152) = 0 [pid 6906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6906] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6906] close(3) = 0 [pid 6906] mkdir("./file1", 0777) = 0 [pid 6906] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6906] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6906] chdir("./file1") = 0 [pid 6906] ioctl(4, LOOP_CLR_FD) = 0 [pid 6906] close(4) = 0 [pid 6906] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6906] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6906] ftruncate(5, 33587199) = 0 [ 247.334279][ T6906] loop0: detected capacity change from 0 to 4096 [ 247.346439][ T6906] NILFS (loop0): invalid segment: Checksum error in segment payload [ 247.354523][ T6906] NILFS (loop0): trying rollback from an earlier position [ 247.365856][ T6906] NILFS (loop0): recovery complete [ 247.371589][ T6907] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6906] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6906] exit_group(0) = ? [pid 6906] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6906, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./909", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./909", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./909/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./909/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./909/binderfs") = 0 umount2("./909/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./909/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./909/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./909/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./909/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./909/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./909") = 0 mkdir("./910", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6908 ./strace-static-x86_64: Process 6908 attached [pid 6908] chdir("./910") = 0 [pid 6908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6908] setpgid(0, 0) = 0 [pid 6908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6908] write(3, "1000", 4) = 4 [pid 6908] close(3) = 0 [pid 6908] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6908] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6908] memfd_create("syzkaller", 0) = 3 [pid 6908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6908] 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"..., 2097152) = 2097152 [pid 6908] munmap(0x7f320ee61000, 2097152) = 0 [pid 6908] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6908] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6908] close(3) = 0 [pid 6908] mkdir("./file1", 0777) = 0 [pid 6908] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6908] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6908] chdir("./file1") = 0 [pid 6908] ioctl(4, LOOP_CLR_FD) = 0 [pid 6908] close(4) = 0 [pid 6908] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6908] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6908] ftruncate(5, 33587199) = 0 [ 247.566681][ T6908] loop0: detected capacity change from 0 to 4096 [ 247.579346][ T6908] NILFS (loop0): invalid segment: Checksum error in segment payload [ 247.587438][ T6908] NILFS (loop0): trying rollback from an earlier position [ 247.598640][ T6908] NILFS (loop0): recovery complete [ 247.604571][ T6909] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6908] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6908] exit_group(0) = ? [pid 6908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6908, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./910", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./910", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./910/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./910/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./910/binderfs") = 0 umount2("./910/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./910/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./910/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./910/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./910/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./910/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./910") = 0 mkdir("./911", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6910 attached , child_tidptr=0x555555c06690) = 6910 [pid 6910] chdir("./911") = 0 [pid 6910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6910] setpgid(0, 0) = 0 [pid 6910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6910] write(3, "1000", 4) = 4 [pid 6910] close(3) = 0 [pid 6910] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6910] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6910] memfd_create("syzkaller", 0) = 3 [pid 6910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6910] 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"..., 2097152) = 2097152 [pid 6910] munmap(0x7f320ee61000, 2097152) = 0 [pid 6910] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6910] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6910] close(3) = 0 [pid 6910] mkdir("./file1", 0777) = 0 [pid 6910] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6910] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6910] chdir("./file1") = 0 [pid 6910] ioctl(4, LOOP_CLR_FD) = 0 [pid 6910] close(4) = 0 [pid 6910] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6910] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6910] ftruncate(5, 33587199) = 0 [ 247.790112][ T6910] loop0: detected capacity change from 0 to 4096 [ 247.802078][ T6910] NILFS (loop0): invalid segment: Checksum error in segment payload [ 247.810054][ T6910] NILFS (loop0): trying rollback from an earlier position [ 247.821135][ T6910] NILFS (loop0): recovery complete [ 247.826667][ T6911] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6910] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6910] exit_group(0) = ? [pid 6910] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6910, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./911", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./911", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./911/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./911/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./911/binderfs") = 0 umount2("./911/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./911/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./911/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./911/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./911/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./911/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./911") = 0 mkdir("./912", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6912 attached , child_tidptr=0x555555c06690) = 6912 [pid 6912] chdir("./912") = 0 [pid 6912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6912] setpgid(0, 0) = 0 [pid 6912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6912] write(3, "1000", 4) = 4 [pid 6912] close(3) = 0 [pid 6912] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6912] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6912] memfd_create("syzkaller", 0) = 3 [pid 6912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6912] 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"..., 2097152) = 2097152 [pid 6912] munmap(0x7f320ee61000, 2097152) = 0 [pid 6912] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6912] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6912] close(3) = 0 [pid 6912] mkdir("./file1", 0777) = 0 [pid 6912] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6912] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6912] chdir("./file1") = 0 [pid 6912] ioctl(4, LOOP_CLR_FD) = 0 [pid 6912] close(4) = 0 [pid 6912] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6912] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6912] ftruncate(5, 33587199) = 0 [ 248.016297][ T6912] loop0: detected capacity change from 0 to 4096 [ 248.028709][ T6912] NILFS (loop0): invalid segment: Checksum error in segment payload [ 248.036807][ T6912] NILFS (loop0): trying rollback from an earlier position [ 248.048359][ T6912] NILFS (loop0): recovery complete [ 248.054270][ T6913] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6912] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6912] exit_group(0) = ? [pid 6912] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6912, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./912", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./912", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./912/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./912/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./912/binderfs") = 0 umount2("./912/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./912/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./912/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./912/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./912/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./912/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./912") = 0 mkdir("./913", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6914 ./strace-static-x86_64: Process 6914 attached [pid 6914] chdir("./913") = 0 [pid 6914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6914] setpgid(0, 0) = 0 [pid 6914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6914] write(3, "1000", 4) = 4 [pid 6914] close(3) = 0 [pid 6914] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6914] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6914] memfd_create("syzkaller", 0) = 3 [pid 6914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6914] 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"..., 2097152) = 2097152 [pid 6914] munmap(0x7f320ee61000, 2097152) = 0 [pid 6914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6914] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6914] close(3) = 0 [pid 6914] mkdir("./file1", 0777) = 0 [pid 6914] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6914] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6914] chdir("./file1") = 0 [pid 6914] ioctl(4, LOOP_CLR_FD) = 0 [pid 6914] close(4) = 0 [pid 6914] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6914] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6914] ftruncate(5, 33587199) = 0 [ 248.244586][ T6914] loop0: detected capacity change from 0 to 4096 [ 248.256801][ T6914] NILFS (loop0): invalid segment: Checksum error in segment payload [ 248.264874][ T6914] NILFS (loop0): trying rollback from an earlier position [ 248.276240][ T6914] NILFS (loop0): recovery complete [ 248.282128][ T6915] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6914] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6914] exit_group(0) = ? [pid 6914] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6914, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./913", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./913", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./913/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./913/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./913/binderfs") = 0 umount2("./913/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./913/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./913/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./913/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./913/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./913/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./913") = 0 mkdir("./914", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6916 ./strace-static-x86_64: Process 6916 attached [pid 6916] chdir("./914") = 0 [pid 6916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6916] setpgid(0, 0) = 0 [pid 6916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6916] write(3, "1000", 4) = 4 [pid 6916] close(3) = 0 [pid 6916] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6916] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6916] memfd_create("syzkaller", 0) = 3 [pid 6916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6916] 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"..., 2097152) = 2097152 [pid 6916] munmap(0x7f320ee61000, 2097152) = 0 [pid 6916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6916] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6916] close(3) = 0 [pid 6916] mkdir("./file1", 0777) = 0 [pid 6916] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6916] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6916] chdir("./file1") = 0 [pid 6916] ioctl(4, LOOP_CLR_FD) = 0 [pid 6916] close(4) = 0 [pid 6916] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6916] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6916] ftruncate(5, 33587199) = 0 [ 248.465705][ T6916] loop0: detected capacity change from 0 to 4096 [ 248.477801][ T6916] NILFS (loop0): invalid segment: Checksum error in segment payload [ 248.486103][ T6916] NILFS (loop0): trying rollback from an earlier position [ 248.497220][ T6916] NILFS (loop0): recovery complete [ 248.503112][ T6917] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6916] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6916] exit_group(0) = ? [pid 6916] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6916, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./914", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./914", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./914/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./914/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./914/binderfs") = 0 umount2("./914/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./914/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./914/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./914/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./914/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./914/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./914") = 0 mkdir("./915", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6918 ./strace-static-x86_64: Process 6918 attached [pid 6918] chdir("./915") = 0 [pid 6918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6918] setpgid(0, 0) = 0 [pid 6918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6918] write(3, "1000", 4) = 4 [pid 6918] close(3) = 0 [pid 6918] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6918] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6918] memfd_create("syzkaller", 0) = 3 [pid 6918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6918] 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"..., 2097152) = 2097152 [pid 6918] munmap(0x7f320ee61000, 2097152) = 0 [pid 6918] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6918] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6918] close(3) = 0 [pid 6918] mkdir("./file1", 0777) = 0 [pid 6918] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6918] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6918] chdir("./file1") = 0 [pid 6918] ioctl(4, LOOP_CLR_FD) = 0 [pid 6918] close(4) = 0 [pid 6918] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6918] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6918] ftruncate(5, 33587199) = 0 [ 248.683109][ T6918] loop0: detected capacity change from 0 to 4096 [ 248.695456][ T6918] NILFS (loop0): invalid segment: Checksum error in segment payload [ 248.703764][ T6918] NILFS (loop0): trying rollback from an earlier position [ 248.714822][ T6918] NILFS (loop0): recovery complete [ 248.720817][ T6919] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6918] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6918] exit_group(0) = ? [pid 6918] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6918, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./915", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./915", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./915/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./915/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./915/binderfs") = 0 umount2("./915/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./915/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./915/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./915/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./915/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./915/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./915") = 0 mkdir("./916", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6920 ./strace-static-x86_64: Process 6920 attached [pid 6920] chdir("./916") = 0 [pid 6920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6920] setpgid(0, 0) = 0 [pid 6920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6920] write(3, "1000", 4) = 4 [pid 6920] close(3) = 0 [pid 6920] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6920] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6920] memfd_create("syzkaller", 0) = 3 [pid 6920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6920] 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"..., 2097152) = 2097152 [pid 6920] munmap(0x7f320ee61000, 2097152) = 0 [pid 6920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6920] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6920] close(3) = 0 [pid 6920] mkdir("./file1", 0777) = 0 [pid 6920] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6920] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6920] chdir("./file1") = 0 [pid 6920] ioctl(4, LOOP_CLR_FD) = 0 [pid 6920] close(4) = 0 [pid 6920] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6920] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6920] ftruncate(5, 33587199) = 0 [ 248.904337][ T6920] loop0: detected capacity change from 0 to 4096 [ 248.916544][ T6920] NILFS (loop0): invalid segment: Checksum error in segment payload [ 248.924697][ T6920] NILFS (loop0): trying rollback from an earlier position [ 248.935904][ T6920] NILFS (loop0): recovery complete [ 248.941568][ T6921] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6920] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6920] exit_group(0) = ? [pid 6920] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6920, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./916", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./916", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./916/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./916/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./916/binderfs") = 0 umount2("./916/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./916/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./916/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./916/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./916/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./916/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./916") = 0 mkdir("./917", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6922 attached , child_tidptr=0x555555c06690) = 6922 [pid 6922] chdir("./917") = 0 [pid 6922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6922] setpgid(0, 0) = 0 [pid 6922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6922] write(3, "1000", 4) = 4 [pid 6922] close(3) = 0 [pid 6922] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6922] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6922] memfd_create("syzkaller", 0) = 3 [pid 6922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6922] 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"..., 2097152) = 2097152 [pid 6922] munmap(0x7f320ee61000, 2097152) = 0 [pid 6922] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6922] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6922] close(3) = 0 [pid 6922] mkdir("./file1", 0777) = 0 [pid 6922] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6922] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6922] chdir("./file1") = 0 [pid 6922] ioctl(4, LOOP_CLR_FD) = 0 [pid 6922] close(4) = 0 [pid 6922] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6922] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6922] ftruncate(5, 33587199) = 0 [ 249.132448][ T6922] loop0: detected capacity change from 0 to 4096 [ 249.144948][ T6922] NILFS (loop0): invalid segment: Checksum error in segment payload [ 249.153247][ T6922] NILFS (loop0): trying rollback from an earlier position [ 249.165055][ T6922] NILFS (loop0): recovery complete [ 249.170888][ T6923] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6922] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6922] exit_group(0) = ? [pid 6922] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6922, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./917", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./917", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./917/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./917/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./917/binderfs") = 0 umount2("./917/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./917/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./917/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./917/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./917/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./917/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./917") = 0 mkdir("./918", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6924 ./strace-static-x86_64: Process 6924 attached [pid 6924] chdir("./918") = 0 [pid 6924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6924] setpgid(0, 0) = 0 [pid 6924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6924] write(3, "1000", 4) = 4 [pid 6924] close(3) = 0 [pid 6924] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6924] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6924] memfd_create("syzkaller", 0) = 3 [pid 6924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6924] 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"..., 2097152) = 2097152 [pid 6924] munmap(0x7f320ee61000, 2097152) = 0 [pid 6924] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6924] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6924] close(3) = 0 [pid 6924] mkdir("./file1", 0777) = 0 [pid 6924] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6924] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6924] chdir("./file1") = 0 [pid 6924] ioctl(4, LOOP_CLR_FD) = 0 [pid 6924] close(4) = 0 [pid 6924] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6924] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6924] ftruncate(5, 33587199) = 0 [ 249.361581][ T6924] loop0: detected capacity change from 0 to 4096 [ 249.373958][ T6924] NILFS (loop0): invalid segment: Checksum error in segment payload [ 249.382517][ T6924] NILFS (loop0): trying rollback from an earlier position [ 249.394622][ T6924] NILFS (loop0): recovery complete [ 249.400584][ T6925] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6924] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6924] exit_group(0) = ? [pid 6924] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6924, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./918", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./918", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./918/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./918/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./918/binderfs") = 0 umount2("./918/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./918/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./918/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./918/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./918/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./918/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./918") = 0 mkdir("./919", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6926 ./strace-static-x86_64: Process 6926 attached [pid 6926] chdir("./919") = 0 [pid 6926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6926] setpgid(0, 0) = 0 [pid 6926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6926] write(3, "1000", 4) = 4 [pid 6926] close(3) = 0 [pid 6926] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6926] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6926] memfd_create("syzkaller", 0) = 3 [pid 6926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6926] 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"..., 2097152) = 2097152 [pid 6926] munmap(0x7f320ee61000, 2097152) = 0 [pid 6926] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6926] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6926] close(3) = 0 [pid 6926] mkdir("./file1", 0777) = 0 [pid 6926] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6926] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6926] chdir("./file1") = 0 [pid 6926] ioctl(4, LOOP_CLR_FD) = 0 [pid 6926] close(4) = 0 [pid 6926] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6926] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6926] ftruncate(5, 33587199) = 0 [ 249.594303][ T6926] loop0: detected capacity change from 0 to 4096 [ 249.606321][ T6926] NILFS (loop0): invalid segment: Checksum error in segment payload [ 249.614474][ T6926] NILFS (loop0): trying rollback from an earlier position [ 249.626050][ T6926] NILFS (loop0): recovery complete [ 249.631742][ T6927] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6926] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6926] exit_group(0) = ? [pid 6926] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6926, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./919", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./919", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./919/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./919/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./919/binderfs") = 0 umount2("./919/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./919/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./919/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./919/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./919/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./919/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./919") = 0 mkdir("./920", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6928 attached , child_tidptr=0x555555c06690) = 6928 [pid 6928] chdir("./920") = 0 [pid 6928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6928] setpgid(0, 0) = 0 [pid 6928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6928] write(3, "1000", 4) = 4 [pid 6928] close(3) = 0 [pid 6928] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6928] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6928] memfd_create("syzkaller", 0) = 3 [pid 6928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6928] 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"..., 2097152) = 2097152 [pid 6928] munmap(0x7f320ee61000, 2097152) = 0 [pid 6928] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6928] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6928] close(3) = 0 [pid 6928] mkdir("./file1", 0777) = 0 [pid 6928] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6928] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6928] chdir("./file1") = 0 [pid 6928] ioctl(4, LOOP_CLR_FD) = 0 [pid 6928] close(4) = 0 [pid 6928] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6928] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6928] ftruncate(5, 33587199) = 0 [ 249.822298][ T6928] loop0: detected capacity change from 0 to 4096 [ 249.834569][ T6928] NILFS (loop0): invalid segment: Checksum error in segment payload [ 249.842729][ T6928] NILFS (loop0): trying rollback from an earlier position [ 249.853860][ T6928] NILFS (loop0): recovery complete [ 249.859484][ T6929] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6928] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6928] exit_group(0) = ? [pid 6928] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6928, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./920", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./920", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./920/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./920/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./920/binderfs") = 0 umount2("./920/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./920/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./920/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./920/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./920/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./920/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./920") = 0 mkdir("./921", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6930 ./strace-static-x86_64: Process 6930 attached [pid 6930] chdir("./921") = 0 [pid 6930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6930] setpgid(0, 0) = 0 [pid 6930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6930] write(3, "1000", 4) = 4 [pid 6930] close(3) = 0 [pid 6930] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6930] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6930] memfd_create("syzkaller", 0) = 3 [pid 6930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6930] 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"..., 2097152) = 2097152 [pid 6930] munmap(0x7f320ee61000, 2097152) = 0 [pid 6930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6930] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6930] close(3) = 0 [pid 6930] mkdir("./file1", 0777) = 0 [pid 6930] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6930] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6930] chdir("./file1") = 0 [pid 6930] ioctl(4, LOOP_CLR_FD) = 0 [pid 6930] close(4) = 0 [pid 6930] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6930] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6930] ftruncate(5, 33587199) = 0 [ 250.044500][ T6930] loop0: detected capacity change from 0 to 4096 [ 250.057867][ T6930] NILFS (loop0): invalid segment: Checksum error in segment payload [ 250.065989][ T6930] NILFS (loop0): trying rollback from an earlier position [ 250.077064][ T6930] NILFS (loop0): recovery complete [ 250.082736][ T6931] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6930] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6930] exit_group(0) = ? [pid 6930] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6930, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./921", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./921", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./921/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./921/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./921/binderfs") = 0 umount2("./921/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./921/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./921/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./921/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./921/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./921/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./921") = 0 mkdir("./922", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6932 attached [pid 6932] chdir("./922") = 0 [pid 6932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6932] setpgid(0, 0) = 0 [pid 6932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6932] write(3, "1000", 4) = 4 [pid 6932] close(3) = 0 [pid 6932] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6932] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 6932 [pid 6932] memfd_create("syzkaller", 0) = 3 [pid 6932] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6932] 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"..., 2097152) = 2097152 [pid 6932] munmap(0x7f320ee61000, 2097152) = 0 [pid 6932] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6932] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6932] close(3) = 0 [pid 6932] mkdir("./file1", 0777) = 0 [pid 6932] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6932] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6932] chdir("./file1") = 0 [pid 6932] ioctl(4, LOOP_CLR_FD) = 0 [pid 6932] close(4) = 0 [pid 6932] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6932] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6932] ftruncate(5, 33587199) = 0 [ 250.265911][ T6932] loop0: detected capacity change from 0 to 4096 [ 250.278007][ T6932] NILFS (loop0): invalid segment: Checksum error in segment payload [ 250.286065][ T6932] NILFS (loop0): trying rollback from an earlier position [ 250.297797][ T6932] NILFS (loop0): recovery complete [ 250.304114][ T6933] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6932] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6932] exit_group(0) = ? [pid 6932] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6932, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./922", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./922", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./922/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./922/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./922/binderfs") = 0 umount2("./922/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./922/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./922/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./922/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./922/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./922/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./922") = 0 mkdir("./923", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6934 ./strace-static-x86_64: Process 6934 attached [pid 6934] chdir("./923") = 0 [pid 6934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6934] setpgid(0, 0) = 0 [pid 6934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6934] write(3, "1000", 4) = 4 [pid 6934] close(3) = 0 [pid 6934] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6934] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6934] memfd_create("syzkaller", 0) = 3 [pid 6934] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6934] 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"..., 2097152) = 2097152 [pid 6934] munmap(0x7f320ee61000, 2097152) = 0 [pid 6934] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6934] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6934] close(3) = 0 [pid 6934] mkdir("./file1", 0777) = 0 [pid 6934] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6934] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6934] chdir("./file1") = 0 [pid 6934] ioctl(4, LOOP_CLR_FD) = 0 [pid 6934] close(4) = 0 [pid 6934] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6934] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6934] ftruncate(5, 33587199) = 0 [ 250.488835][ T6934] loop0: detected capacity change from 0 to 4096 [ 250.500402][ T6934] NILFS (loop0): invalid segment: Checksum error in segment payload [ 250.508407][ T6934] NILFS (loop0): trying rollback from an earlier position [ 250.519444][ T6934] NILFS (loop0): recovery complete [ 250.525115][ T6935] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6934] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6934] exit_group(0) = ? [pid 6934] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6934, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./923", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./923", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./923/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./923/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./923/binderfs") = 0 umount2("./923/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./923/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./923/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./923/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./923/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./923/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./923") = 0 mkdir("./924", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6936 ./strace-static-x86_64: Process 6936 attached [pid 6936] chdir("./924") = 0 [pid 6936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6936] setpgid(0, 0) = 0 [pid 6936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6936] write(3, "1000", 4) = 4 [pid 6936] close(3) = 0 [pid 6936] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6936] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6936] memfd_create("syzkaller", 0) = 3 [pid 6936] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6936] 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"..., 2097152) = 2097152 [pid 6936] munmap(0x7f320ee61000, 2097152) = 0 [pid 6936] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6936] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6936] close(3) = 0 [pid 6936] mkdir("./file1", 0777) = 0 [pid 6936] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6936] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6936] chdir("./file1") = 0 [pid 6936] ioctl(4, LOOP_CLR_FD) = 0 [pid 6936] close(4) = 0 [pid 6936] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6936] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6936] ftruncate(5, 33587199) = 0 [ 250.706140][ T6936] loop0: detected capacity change from 0 to 4096 [ 250.718360][ T6936] NILFS (loop0): invalid segment: Checksum error in segment payload [ 250.726596][ T6936] NILFS (loop0): trying rollback from an earlier position [ 250.738878][ T6936] NILFS (loop0): recovery complete [ 250.744631][ T6937] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6936] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6936] exit_group(0) = ? [pid 6936] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6936, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./924", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./924", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./924/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./924/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./924/binderfs") = 0 umount2("./924/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./924/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./924/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./924/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./924/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./924/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./924") = 0 mkdir("./925", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6938 ./strace-static-x86_64: Process 6938 attached [pid 6938] chdir("./925") = 0 [pid 6938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6938] setpgid(0, 0) = 0 [pid 6938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6938] write(3, "1000", 4) = 4 [pid 6938] close(3) = 0 [pid 6938] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6938] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6938] memfd_create("syzkaller", 0) = 3 [pid 6938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6938] 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"..., 2097152) = 2097152 [pid 6938] munmap(0x7f320ee61000, 2097152) = 0 [pid 6938] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6938] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6938] close(3) = 0 [pid 6938] mkdir("./file1", 0777) = 0 [pid 6938] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6938] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6938] chdir("./file1") = 0 [pid 6938] ioctl(4, LOOP_CLR_FD) = 0 [pid 6938] close(4) = 0 [pid 6938] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6938] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6938] ftruncate(5, 33587199) = 0 [ 250.937640][ T6938] loop0: detected capacity change from 0 to 4096 [ 250.949960][ T6938] NILFS (loop0): invalid segment: Checksum error in segment payload [ 250.958243][ T6938] NILFS (loop0): trying rollback from an earlier position [ 250.969824][ T6938] NILFS (loop0): recovery complete [ 250.975540][ T6939] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6938] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6938] exit_group(0) = ? [pid 6938] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6938, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./925", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./925", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./925/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./925/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./925/binderfs") = 0 umount2("./925/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./925/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./925/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./925/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./925/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./925/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./925") = 0 mkdir("./926", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6940 ./strace-static-x86_64: Process 6940 attached [pid 6940] chdir("./926") = 0 [pid 6940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6940] setpgid(0, 0) = 0 [pid 6940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6940] write(3, "1000", 4) = 4 [pid 6940] close(3) = 0 [pid 6940] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6940] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6940] memfd_create("syzkaller", 0) = 3 [pid 6940] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6940] 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"..., 2097152) = 2097152 [pid 6940] munmap(0x7f320ee61000, 2097152) = 0 [pid 6940] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6940] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6940] close(3) = 0 [pid 6940] mkdir("./file1", 0777) = 0 [pid 6940] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6940] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6940] chdir("./file1") = 0 [pid 6940] ioctl(4, LOOP_CLR_FD) = 0 [pid 6940] close(4) = 0 [pid 6940] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6940] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6940] ftruncate(5, 33587199) = 0 [ 251.164557][ T6940] loop0: detected capacity change from 0 to 4096 [ 251.176277][ T6940] NILFS (loop0): invalid segment: Checksum error in segment payload [ 251.184520][ T6940] NILFS (loop0): trying rollback from an earlier position [ 251.195822][ T6940] NILFS (loop0): recovery complete [ 251.201466][ T6941] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6940] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6940] exit_group(0) = ? [pid 6940] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6940, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./926", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./926", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./926/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./926/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./926/binderfs") = 0 umount2("./926/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./926/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./926/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./926/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./926/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./926/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./926") = 0 mkdir("./927", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6942 ./strace-static-x86_64: Process 6942 attached [pid 6942] chdir("./927") = 0 [pid 6942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6942] setpgid(0, 0) = 0 [pid 6942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6942] write(3, "1000", 4) = 4 [pid 6942] close(3) = 0 [pid 6942] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6942] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6942] memfd_create("syzkaller", 0) = 3 [pid 6942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6942] 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"..., 2097152) = 2097152 [pid 6942] munmap(0x7f320ee61000, 2097152) = 0 [pid 6942] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6942] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6942] close(3) = 0 [pid 6942] mkdir("./file1", 0777) = 0 [pid 6942] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6942] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6942] chdir("./file1") = 0 [pid 6942] ioctl(4, LOOP_CLR_FD) = 0 [pid 6942] close(4) = 0 [pid 6942] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6942] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6942] ftruncate(5, 33587199) = 0 [ 251.394595][ T6942] loop0: detected capacity change from 0 to 4096 [ 251.406251][ T6942] NILFS (loop0): invalid segment: Checksum error in segment payload [ 251.414346][ T6942] NILFS (loop0): trying rollback from an earlier position [ 251.425945][ T6942] NILFS (loop0): recovery complete [ 251.431693][ T6943] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6942] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6942] exit_group(0) = ? [pid 6942] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6942, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./927", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./927", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./927/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./927/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./927/binderfs") = 0 umount2("./927/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./927/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./927/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./927/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./927/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./927/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./927") = 0 mkdir("./928", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6944 attached , child_tidptr=0x555555c06690) = 6944 [pid 6944] chdir("./928") = 0 [pid 6944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6944] setpgid(0, 0) = 0 [pid 6944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6944] write(3, "1000", 4) = 4 [pid 6944] close(3) = 0 [pid 6944] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6944] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6944] memfd_create("syzkaller", 0) = 3 [pid 6944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6944] 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"..., 2097152) = 2097152 [pid 6944] munmap(0x7f320ee61000, 2097152) = 0 [pid 6944] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6944] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6944] close(3) = 0 [pid 6944] mkdir("./file1", 0777) = 0 [pid 6944] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6944] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6944] chdir("./file1") = 0 [pid 6944] ioctl(4, LOOP_CLR_FD) = 0 [pid 6944] close(4) = 0 [pid 6944] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6944] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6944] ftruncate(5, 33587199) = 0 [ 251.621215][ T6944] loop0: detected capacity change from 0 to 4096 [ 251.633680][ T6944] NILFS (loop0): invalid segment: Checksum error in segment payload [ 251.641702][ T6944] NILFS (loop0): trying rollback from an earlier position [ 251.652841][ T6944] NILFS (loop0): recovery complete [ 251.658519][ T6945] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6944] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6944] exit_group(0) = ? [pid 6944] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6944, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./928", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./928", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./928/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./928/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./928/binderfs") = 0 umount2("./928/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./928/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./928/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./928/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./928/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./928/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./928") = 0 mkdir("./929", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6946 ./strace-static-x86_64: Process 6946 attached [pid 6946] chdir("./929") = 0 [pid 6946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6946] setpgid(0, 0) = 0 [pid 6946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6946] write(3, "1000", 4) = 4 [pid 6946] close(3) = 0 [pid 6946] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6946] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6946] memfd_create("syzkaller", 0) = 3 [pid 6946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6946] 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"..., 2097152) = 2097152 [pid 6946] munmap(0x7f320ee61000, 2097152) = 0 [pid 6946] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6946] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6946] close(3) = 0 [pid 6946] mkdir("./file1", 0777) = 0 [pid 6946] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6946] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6946] chdir("./file1") = 0 [pid 6946] ioctl(4, LOOP_CLR_FD) = 0 [pid 6946] close(4) = 0 [pid 6946] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6946] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6946] ftruncate(5, 33587199) = 0 [ 251.844326][ T6946] loop0: detected capacity change from 0 to 4096 [ 251.856806][ T6946] NILFS (loop0): invalid segment: Checksum error in segment payload [ 251.864928][ T6946] NILFS (loop0): trying rollback from an earlier position [ 251.876402][ T6946] NILFS (loop0): recovery complete [ 251.882300][ T6947] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6946] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6946] exit_group(0) = ? [pid 6946] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6946, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./929", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./929", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./929/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./929/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./929/binderfs") = 0 umount2("./929/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./929/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./929/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./929/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./929/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./929/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./929") = 0 mkdir("./930", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6948 ./strace-static-x86_64: Process 6948 attached [pid 6948] chdir("./930") = 0 [pid 6948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6948] setpgid(0, 0) = 0 [pid 6948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6948] write(3, "1000", 4) = 4 [pid 6948] close(3) = 0 [pid 6948] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6948] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6948] memfd_create("syzkaller", 0) = 3 [pid 6948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6948] 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"..., 2097152) = 2097152 [pid 6948] munmap(0x7f320ee61000, 2097152) = 0 [pid 6948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6948] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6948] close(3) = 0 [pid 6948] mkdir("./file1", 0777) = 0 [pid 6948] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6948] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6948] chdir("./file1") = 0 [pid 6948] ioctl(4, LOOP_CLR_FD) = 0 [pid 6948] close(4) = 0 [pid 6948] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6948] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6948] ftruncate(5, 33587199) = 0 [ 252.066236][ T6948] loop0: detected capacity change from 0 to 4096 [ 252.078510][ T6948] NILFS (loop0): invalid segment: Checksum error in segment payload [ 252.086598][ T6948] NILFS (loop0): trying rollback from an earlier position [ 252.097584][ T6948] NILFS (loop0): recovery complete [ 252.103379][ T6949] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6948] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6948] exit_group(0) = ? [pid 6948] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6948, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./930", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./930", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./930/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./930/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./930/binderfs") = 0 umount2("./930/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./930/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./930/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./930/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./930/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./930/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./930") = 0 mkdir("./931", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6950 ./strace-static-x86_64: Process 6950 attached [pid 6950] chdir("./931") = 0 [pid 6950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6950] setpgid(0, 0) = 0 [pid 6950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6950] write(3, "1000", 4) = 4 [pid 6950] close(3) = 0 [pid 6950] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6950] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6950] memfd_create("syzkaller", 0) = 3 [pid 6950] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6950] 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"..., 2097152) = 2097152 [pid 6950] munmap(0x7f320ee61000, 2097152) = 0 [pid 6950] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6950] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6950] close(3) = 0 [pid 6950] mkdir("./file1", 0777) = 0 [pid 6950] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6950] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6950] chdir("./file1") = 0 [pid 6950] ioctl(4, LOOP_CLR_FD) = 0 [pid 6950] close(4) = 0 [pid 6950] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6950] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6950] ftruncate(5, 33587199) = 0 [ 252.292874][ T6950] loop0: detected capacity change from 0 to 4096 [ 252.304539][ T6950] NILFS (loop0): invalid segment: Checksum error in segment payload [ 252.312739][ T6950] NILFS (loop0): trying rollback from an earlier position [ 252.323900][ T6950] NILFS (loop0): recovery complete [ 252.329620][ T6951] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6950] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6950] exit_group(0) = ? [pid 6950] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6950, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./931", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./931", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./931/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./931/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./931/binderfs") = 0 umount2("./931/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./931/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./931/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./931/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./931/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./931/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./931") = 0 mkdir("./932", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6952 ./strace-static-x86_64: Process 6952 attached [pid 6952] chdir("./932") = 0 [pid 6952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6952] setpgid(0, 0) = 0 [pid 6952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6952] write(3, "1000", 4) = 4 [pid 6952] close(3) = 0 [pid 6952] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6952] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6952] memfd_create("syzkaller", 0) = 3 [pid 6952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6952] 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"..., 2097152) = 2097152 [pid 6952] munmap(0x7f320ee61000, 2097152) = 0 [pid 6952] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6952] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6952] close(3) = 0 [pid 6952] mkdir("./file1", 0777) = 0 [pid 6952] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6952] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6952] chdir("./file1") = 0 [pid 6952] ioctl(4, LOOP_CLR_FD) = 0 [pid 6952] close(4) = 0 [pid 6952] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6952] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6952] ftruncate(5, 33587199) = 0 [ 252.504799][ T6952] loop0: detected capacity change from 0 to 4096 [ 252.517479][ T6952] NILFS (loop0): invalid segment: Checksum error in segment payload [ 252.525897][ T6952] NILFS (loop0): trying rollback from an earlier position [ 252.537841][ T6952] NILFS (loop0): recovery complete [ 252.544323][ T6953] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6952] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6952] exit_group(0) = ? [pid 6952] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6952, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./932", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./932", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./932/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./932/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./932/binderfs") = 0 umount2("./932/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./932/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./932/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./932/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./932/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./932/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./932") = 0 mkdir("./933", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6954 ./strace-static-x86_64: Process 6954 attached [pid 6954] chdir("./933") = 0 [pid 6954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6954] setpgid(0, 0) = 0 [pid 6954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6954] write(3, "1000", 4) = 4 [pid 6954] close(3) = 0 [pid 6954] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6954] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6954] memfd_create("syzkaller", 0) = 3 [pid 6954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6954] 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"..., 2097152) = 2097152 [pid 6954] munmap(0x7f320ee61000, 2097152) = 0 [pid 6954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6954] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6954] close(3) = 0 [pid 6954] mkdir("./file1", 0777) = 0 [pid 6954] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6954] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6954] chdir("./file1") = 0 [pid 6954] ioctl(4, LOOP_CLR_FD) = 0 [pid 6954] close(4) = 0 [pid 6954] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6954] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6954] ftruncate(5, 33587199) = 0 [ 252.726801][ T6954] loop0: detected capacity change from 0 to 4096 [ 252.739586][ T6954] NILFS (loop0): invalid segment: Checksum error in segment payload [ 252.747758][ T6954] NILFS (loop0): trying rollback from an earlier position [ 252.759200][ T6954] NILFS (loop0): recovery complete [ 252.765069][ T6955] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6954] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6954] exit_group(0) = ? [pid 6954] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6954, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./933", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./933", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./933/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./933/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./933/binderfs") = 0 umount2("./933/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./933/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./933/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./933/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./933/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./933/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./933") = 0 mkdir("./934", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6956 ./strace-static-x86_64: Process 6956 attached [pid 6956] chdir("./934") = 0 [pid 6956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6956] setpgid(0, 0) = 0 [pid 6956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6956] write(3, "1000", 4) = 4 [pid 6956] close(3) = 0 [pid 6956] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6956] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6956] memfd_create("syzkaller", 0) = 3 [pid 6956] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6956] 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"..., 2097152) = 2097152 [pid 6956] munmap(0x7f320ee61000, 2097152) = 0 [pid 6956] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6956] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6956] close(3) = 0 [pid 6956] mkdir("./file1", 0777) = 0 [pid 6956] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6956] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6956] chdir("./file1") = 0 [pid 6956] ioctl(4, LOOP_CLR_FD) = 0 [pid 6956] close(4) = 0 [pid 6956] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6956] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6956] ftruncate(5, 33587199) = 0 [ 252.946438][ T6956] loop0: detected capacity change from 0 to 4096 [ 252.958982][ T6956] NILFS (loop0): invalid segment: Checksum error in segment payload [ 252.967566][ T6956] NILFS (loop0): trying rollback from an earlier position [ 252.979148][ T6956] NILFS (loop0): recovery complete [ 252.984908][ T6957] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6956] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6956] exit_group(0) = ? [pid 6956] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6956, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./934", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./934", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./934/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./934/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./934/binderfs") = 0 umount2("./934/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./934/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./934/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./934/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./934/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./934/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./934") = 0 mkdir("./935", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6958 ./strace-static-x86_64: Process 6958 attached [pid 6958] chdir("./935") = 0 [pid 6958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6958] setpgid(0, 0) = 0 [pid 6958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6958] write(3, "1000", 4) = 4 [pid 6958] close(3) = 0 [pid 6958] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6958] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6958] memfd_create("syzkaller", 0) = 3 [pid 6958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6958] 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"..., 2097152) = 2097152 [pid 6958] munmap(0x7f320ee61000, 2097152) = 0 [pid 6958] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6958] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6958] close(3) = 0 [pid 6958] mkdir("./file1", 0777) = 0 [pid 6958] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6958] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6958] chdir("./file1") = 0 [pid 6958] ioctl(4, LOOP_CLR_FD) = 0 [pid 6958] close(4) = 0 [pid 6958] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6958] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6958] ftruncate(5, 33587199) = 0 [ 253.174591][ T6958] loop0: detected capacity change from 0 to 4096 [ 253.187383][ T6958] NILFS (loop0): invalid segment: Checksum error in segment payload [ 253.195756][ T6958] NILFS (loop0): trying rollback from an earlier position [ 253.207002][ T6958] NILFS (loop0): recovery complete [ 253.212796][ T6959] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6958] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6958] exit_group(0) = ? [pid 6958] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6958, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./935", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./935", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./935/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./935/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./935/binderfs") = 0 umount2("./935/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./935/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./935/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./935/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./935/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./935/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./935") = 0 mkdir("./936", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6960 ./strace-static-x86_64: Process 6960 attached [pid 6960] chdir("./936") = 0 [pid 6960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6960] setpgid(0, 0) = 0 [pid 6960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6960] write(3, "1000", 4) = 4 [pid 6960] close(3) = 0 [pid 6960] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6960] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6960] memfd_create("syzkaller", 0) = 3 [pid 6960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6960] 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"..., 2097152) = 2097152 [pid 6960] munmap(0x7f320ee61000, 2097152) = 0 [pid 6960] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6960] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6960] close(3) = 0 [pid 6960] mkdir("./file1", 0777) = 0 [pid 6960] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6960] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6960] chdir("./file1") = 0 [pid 6960] ioctl(4, LOOP_CLR_FD) = 0 [pid 6960] close(4) = 0 [pid 6960] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6960] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6960] ftruncate(5, 33587199) = 0 [ 253.400462][ T6960] loop0: detected capacity change from 0 to 4096 [ 253.413732][ T6960] NILFS (loop0): invalid segment: Checksum error in segment payload [ 253.421950][ T6960] NILFS (loop0): trying rollback from an earlier position [ 253.433098][ T6960] NILFS (loop0): recovery complete [ 253.438703][ T6961] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6960] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6960] exit_group(0) = ? [pid 6960] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6960, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./936", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./936", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./936/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./936/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./936/binderfs") = 0 umount2("./936/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./936/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./936/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./936/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./936/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./936/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./936") = 0 mkdir("./937", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6962 attached , child_tidptr=0x555555c06690) = 6962 [pid 6962] chdir("./937") = 0 [pid 6962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6962] setpgid(0, 0) = 0 [pid 6962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6962] write(3, "1000", 4) = 4 [pid 6962] close(3) = 0 [pid 6962] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6962] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6962] memfd_create("syzkaller", 0) = 3 [pid 6962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6962] 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"..., 2097152) = 2097152 [pid 6962] munmap(0x7f320ee61000, 2097152) = 0 [pid 6962] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6962] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6962] close(3) = 0 [pid 6962] mkdir("./file1", 0777) = 0 [pid 6962] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6962] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6962] chdir("./file1") = 0 [pid 6962] ioctl(4, LOOP_CLR_FD) = 0 [pid 6962] close(4) = 0 [pid 6962] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6962] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6962] ftruncate(5, 33587199) = 0 [ 253.631269][ T6962] loop0: detected capacity change from 0 to 4096 [ 253.644192][ T6962] NILFS (loop0): invalid segment: Checksum error in segment payload [ 253.652205][ T6962] NILFS (loop0): trying rollback from an earlier position [ 253.663142][ T6962] NILFS (loop0): recovery complete [ 253.668844][ T6963] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6962] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6962] exit_group(0) = ? [pid 6962] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6962, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./937", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./937", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./937/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./937/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./937/binderfs") = 0 umount2("./937/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./937/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./937/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./937/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./937/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./937/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./937") = 0 mkdir("./938", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6964 ./strace-static-x86_64: Process 6964 attached [pid 6964] chdir("./938") = 0 [pid 6964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6964] setpgid(0, 0) = 0 [pid 6964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6964] write(3, "1000", 4) = 4 [pid 6964] close(3) = 0 [pid 6964] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6964] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6964] memfd_create("syzkaller", 0) = 3 [pid 6964] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6964] 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"..., 2097152) = 2097152 [pid 6964] munmap(0x7f320ee61000, 2097152) = 0 [pid 6964] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6964] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6964] close(3) = 0 [pid 6964] mkdir("./file1", 0777) = 0 [pid 6964] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6964] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6964] chdir("./file1") = 0 [pid 6964] ioctl(4, LOOP_CLR_FD) = 0 [pid 6964] close(4) = 0 [pid 6964] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6964] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6964] ftruncate(5, 33587199) = 0 [ 253.863757][ T6964] loop0: detected capacity change from 0 to 4096 [ 253.876291][ T6964] NILFS (loop0): invalid segment: Checksum error in segment payload [ 253.884349][ T6964] NILFS (loop0): trying rollback from an earlier position [ 253.896001][ T6964] NILFS (loop0): recovery complete [ 253.901774][ T6965] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6964] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6964] exit_group(0) = ? [pid 6964] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6964, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./938", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./938", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./938/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./938/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./938/binderfs") = 0 umount2("./938/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./938/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./938/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./938/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./938/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./938/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./938") = 0 mkdir("./939", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6966 ./strace-static-x86_64: Process 6966 attached [pid 6966] chdir("./939") = 0 [pid 6966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6966] setpgid(0, 0) = 0 [pid 6966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6966] write(3, "1000", 4) = 4 [pid 6966] close(3) = 0 [pid 6966] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6966] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6966] memfd_create("syzkaller", 0) = 3 [pid 6966] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6966] 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"..., 2097152) = 2097152 [pid 6966] munmap(0x7f320ee61000, 2097152) = 0 [pid 6966] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6966] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6966] close(3) = 0 [pid 6966] mkdir("./file1", 0777) = 0 [pid 6966] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6966] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6966] chdir("./file1") = 0 [pid 6966] ioctl(4, LOOP_CLR_FD) = 0 [pid 6966] close(4) = 0 [pid 6966] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6966] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6966] ftruncate(5, 33587199) = 0 [ 254.094785][ T6966] loop0: detected capacity change from 0 to 4096 [ 254.106586][ T6966] NILFS (loop0): invalid segment: Checksum error in segment payload [ 254.114754][ T6966] NILFS (loop0): trying rollback from an earlier position [ 254.125758][ T6966] NILFS (loop0): recovery complete [ 254.131636][ T6967] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6966] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6966] exit_group(0) = ? [pid 6966] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6966, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./939", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./939", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./939/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./939/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./939/binderfs") = 0 umount2("./939/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./939/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./939/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./939/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./939/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./939/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./939") = 0 mkdir("./940", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6968 ./strace-static-x86_64: Process 6968 attached [pid 6968] chdir("./940") = 0 [pid 6968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6968] setpgid(0, 0) = 0 [pid 6968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6968] write(3, "1000", 4) = 4 [pid 6968] close(3) = 0 [pid 6968] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6968] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6968] memfd_create("syzkaller", 0) = 3 [pid 6968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6968] 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"..., 2097152) = 2097152 [pid 6968] munmap(0x7f320ee61000, 2097152) = 0 [pid 6968] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6968] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6968] close(3) = 0 [pid 6968] mkdir("./file1", 0777) = 0 [pid 6968] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6968] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6968] chdir("./file1") = 0 [pid 6968] ioctl(4, LOOP_CLR_FD) = 0 [pid 6968] close(4) = 0 [pid 6968] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6968] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6968] ftruncate(5, 33587199) = 0 [ 254.322630][ T6968] loop0: detected capacity change from 0 to 4096 [ 254.335225][ T6968] NILFS (loop0): invalid segment: Checksum error in segment payload [ 254.343453][ T6968] NILFS (loop0): trying rollback from an earlier position [ 254.354908][ T6968] NILFS (loop0): recovery complete [ 254.360751][ T6969] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6968] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6968] exit_group(0) = ? [pid 6968] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6968, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./940", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./940", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./940/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./940/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./940/binderfs") = 0 umount2("./940/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./940/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./940/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./940/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./940/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./940/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./940") = 0 mkdir("./941", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6970 ./strace-static-x86_64: Process 6970 attached [pid 6970] chdir("./941") = 0 [pid 6970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6970] setpgid(0, 0) = 0 [pid 6970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6970] write(3, "1000", 4) = 4 [pid 6970] close(3) = 0 [pid 6970] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6970] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6970] memfd_create("syzkaller", 0) = 3 [pid 6970] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6970] 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"..., 2097152) = 2097152 [pid 6970] munmap(0x7f320ee61000, 2097152) = 0 [pid 6970] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6970] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6970] close(3) = 0 [pid 6970] mkdir("./file1", 0777) = 0 [pid 6970] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6970] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6970] chdir("./file1") = 0 [pid 6970] ioctl(4, LOOP_CLR_FD) = 0 [pid 6970] close(4) = 0 [pid 6970] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6970] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6970] ftruncate(5, 33587199) = 0 [ 254.585990][ T6970] loop0: detected capacity change from 0 to 4096 [ 254.598026][ T6970] NILFS (loop0): invalid segment: Checksum error in segment payload [ 254.606081][ T6970] NILFS (loop0): trying rollback from an earlier position [ 254.617569][ T6970] NILFS (loop0): recovery complete [ 254.623428][ T6971] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6970] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6970] exit_group(0) = ? [pid 6970] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6970, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./941", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./941", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./941/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./941/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./941/binderfs") = 0 umount2("./941/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./941/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./941/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./941/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./941/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./941/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./941") = 0 mkdir("./942", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6972 ./strace-static-x86_64: Process 6972 attached [pid 6972] chdir("./942") = 0 [pid 6972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6972] setpgid(0, 0) = 0 [pid 6972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6972] write(3, "1000", 4) = 4 [pid 6972] close(3) = 0 [pid 6972] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6972] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6972] memfd_create("syzkaller", 0) = 3 [pid 6972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6972] 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"..., 2097152) = 2097152 [pid 6972] munmap(0x7f320ee61000, 2097152) = 0 [pid 6972] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6972] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6972] close(3) = 0 [pid 6972] mkdir("./file1", 0777) = 0 [ 254.865993][ T6972] loop0: detected capacity change from 0 to 4096 [ 254.878821][ T6972] NILFS (loop0): invalid segment: Checksum error in segment payload [ 254.887632][ T6972] NILFS (loop0): trying rollback from an earlier position [ 254.900642][ T6972] NILFS (loop0): recovery complete [pid 6972] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6972] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6972] chdir("./file1") = 0 [pid 6972] ioctl(4, LOOP_CLR_FD) = 0 [pid 6972] close(4) = 0 [pid 6972] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6972] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6972] ftruncate(5, 33587199) = 0 [ 254.908744][ T6973] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6972] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6972] exit_group(0) = ? [pid 6972] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6972, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./942", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./942", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./942/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./942/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./942/binderfs") = 0 umount2("./942/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./942/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./942/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./942/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./942/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./942/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./942") = 0 mkdir("./943", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6974 ./strace-static-x86_64: Process 6974 attached [pid 6974] chdir("./943") = 0 [pid 6974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6974] setpgid(0, 0) = 0 [pid 6974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6974] write(3, "1000", 4) = 4 [pid 6974] close(3) = 0 [pid 6974] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6974] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6974] memfd_create("syzkaller", 0) = 3 [pid 6974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6974] 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"..., 2097152) = 2097152 [pid 6974] munmap(0x7f320ee61000, 2097152) = 0 [pid 6974] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6974] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6974] close(3) = 0 [pid 6974] mkdir("./file1", 0777) = 0 [pid 6974] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6974] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6974] chdir("./file1") = 0 [pid 6974] ioctl(4, LOOP_CLR_FD) = 0 [pid 6974] close(4) = 0 [pid 6974] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6974] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6974] ftruncate(5, 33587199) = 0 [ 255.148969][ T6974] loop0: detected capacity change from 0 to 4096 [ 255.160870][ T6974] NILFS (loop0): invalid segment: Checksum error in segment payload [ 255.168881][ T6974] NILFS (loop0): trying rollback from an earlier position [ 255.180186][ T6974] NILFS (loop0): recovery complete [ 255.185931][ T6975] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6974] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6974] exit_group(0) = ? [pid 6974] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6974, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./943", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./943", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./943/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./943/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./943/binderfs") = 0 umount2("./943/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./943/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./943/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./943/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./943/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./943/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./943") = 0 mkdir("./944", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6976 ./strace-static-x86_64: Process 6976 attached [pid 6976] chdir("./944") = 0 [pid 6976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6976] setpgid(0, 0) = 0 [pid 6976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6976] write(3, "1000", 4) = 4 [pid 6976] close(3) = 0 [pid 6976] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6976] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6976] memfd_create("syzkaller", 0) = 3 [pid 6976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6976] 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"..., 2097152) = 2097152 [pid 6976] munmap(0x7f320ee61000, 2097152) = 0 [pid 6976] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6976] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6976] close(3) = 0 [pid 6976] mkdir("./file1", 0777) = 0 [pid 6976] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6976] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6976] chdir("./file1") = 0 [pid 6976] ioctl(4, LOOP_CLR_FD) = 0 [pid 6976] close(4) = 0 [pid 6976] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6976] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6976] ftruncate(5, 33587199) = 0 [ 255.374588][ T6976] loop0: detected capacity change from 0 to 4096 [ 255.386442][ T6976] NILFS (loop0): invalid segment: Checksum error in segment payload [ 255.394756][ T6976] NILFS (loop0): trying rollback from an earlier position [ 255.406082][ T6976] NILFS (loop0): recovery complete [ 255.411917][ T6977] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6976] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6976] exit_group(0) = ? [pid 6976] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6976, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./944", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./944", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./944/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./944/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./944/binderfs") = 0 umount2("./944/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./944/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./944/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./944/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./944/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./944/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./944") = 0 mkdir("./945", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6978 ./strace-static-x86_64: Process 6978 attached [pid 6978] chdir("./945") = 0 [pid 6978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6978] setpgid(0, 0) = 0 [pid 6978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6978] write(3, "1000", 4) = 4 [pid 6978] close(3) = 0 [pid 6978] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6978] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6978] memfd_create("syzkaller", 0) = 3 [pid 6978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6978] 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"..., 2097152) = 2097152 [pid 6978] munmap(0x7f320ee61000, 2097152) = 0 [pid 6978] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6978] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6978] close(3) = 0 [pid 6978] mkdir("./file1", 0777) = 0 [pid 6978] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6978] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6978] chdir("./file1") = 0 [pid 6978] ioctl(4, LOOP_CLR_FD) = 0 [pid 6978] close(4) = 0 [pid 6978] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6978] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6978] ftruncate(5, 33587199) = 0 [ 255.609285][ T6978] loop0: detected capacity change from 0 to 4096 [ 255.621419][ T6978] NILFS (loop0): invalid segment: Checksum error in segment payload [ 255.629426][ T6978] NILFS (loop0): trying rollback from an earlier position [ 255.641141][ T6978] NILFS (loop0): recovery complete [ 255.647005][ T6979] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6978] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6978] exit_group(0) = ? [pid 6978] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6978, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./945", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./945", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./945/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./945/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./945/binderfs") = 0 umount2("./945/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./945/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./945/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./945/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./945/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./945/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./945") = 0 mkdir("./946", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6980 attached , child_tidptr=0x555555c06690) = 6980 [pid 6980] chdir("./946") = 0 [pid 6980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6980] setpgid(0, 0) = 0 [pid 6980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6980] write(3, "1000", 4) = 4 [pid 6980] close(3) = 0 [pid 6980] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6980] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6980] memfd_create("syzkaller", 0) = 3 [pid 6980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6980] 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"..., 2097152) = 2097152 [pid 6980] munmap(0x7f320ee61000, 2097152) = 0 [pid 6980] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6980] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6980] close(3) = 0 [pid 6980] mkdir("./file1", 0777) = 0 [pid 6980] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6980] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6980] chdir("./file1") = 0 [pid 6980] ioctl(4, LOOP_CLR_FD) = 0 [pid 6980] close(4) = 0 [pid 6980] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6980] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6980] ftruncate(5, 33587199) = 0 [ 255.839698][ T6980] loop0: detected capacity change from 0 to 4096 [ 255.852550][ T6980] NILFS (loop0): invalid segment: Checksum error in segment payload [ 255.860605][ T6980] NILFS (loop0): trying rollback from an earlier position [ 255.872318][ T6980] NILFS (loop0): recovery complete [ 255.877977][ T6981] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6980] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6980] exit_group(0) = ? [pid 6980] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6980, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./946", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./946", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./946/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./946/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./946/binderfs") = 0 umount2("./946/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./946/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./946/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./946/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./946/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./946/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./946") = 0 mkdir("./947", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6982 ./strace-static-x86_64: Process 6982 attached [pid 6982] chdir("./947") = 0 [pid 6982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6982] setpgid(0, 0) = 0 [pid 6982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6982] write(3, "1000", 4) = 4 [pid 6982] close(3) = 0 [pid 6982] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6982] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6982] memfd_create("syzkaller", 0) = 3 [pid 6982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6982] 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"..., 2097152) = 2097152 [pid 6982] munmap(0x7f320ee61000, 2097152) = 0 [pid 6982] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6982] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6982] close(3) = 0 [pid 6982] mkdir("./file1", 0777) = 0 [pid 6982] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6982] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6982] chdir("./file1") = 0 [pid 6982] ioctl(4, LOOP_CLR_FD) = 0 [pid 6982] close(4) = 0 [pid 6982] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6982] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6982] ftruncate(5, 33587199) = 0 [ 256.058776][ T6982] loop0: detected capacity change from 0 to 4096 [ 256.071269][ T6982] NILFS (loop0): invalid segment: Checksum error in segment payload [ 256.079315][ T6982] NILFS (loop0): trying rollback from an earlier position [ 256.090656][ T6982] NILFS (loop0): recovery complete [ 256.096275][ T6983] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6982] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6982] exit_group(0) = ? [pid 6982] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6982, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./947", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./947", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./947/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./947/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./947/binderfs") = 0 umount2("./947/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./947/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./947/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./947/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./947/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./947/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./947") = 0 mkdir("./948", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6984 ./strace-static-x86_64: Process 6984 attached [pid 6984] chdir("./948") = 0 [pid 6984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6984] setpgid(0, 0) = 0 [pid 6984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6984] write(3, "1000", 4) = 4 [pid 6984] close(3) = 0 [pid 6984] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6984] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6984] memfd_create("syzkaller", 0) = 3 [pid 6984] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6984] 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"..., 2097152) = 2097152 [pid 6984] munmap(0x7f320ee61000, 2097152) = 0 [pid 6984] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6984] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6984] close(3) = 0 [pid 6984] mkdir("./file1", 0777) = 0 [pid 6984] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6984] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6984] chdir("./file1") = 0 [pid 6984] ioctl(4, LOOP_CLR_FD) = 0 [pid 6984] close(4) = 0 [pid 6984] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6984] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6984] ftruncate(5, 33587199) = 0 [ 256.285433][ T6984] loop0: detected capacity change from 0 to 4096 [ 256.297620][ T6984] NILFS (loop0): invalid segment: Checksum error in segment payload [ 256.305744][ T6984] NILFS (loop0): trying rollback from an earlier position [ 256.316886][ T6984] NILFS (loop0): recovery complete [ 256.322611][ T6985] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6984] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6984] exit_group(0) = ? [pid 6984] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6984, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./948", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./948", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./948/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./948/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./948/binderfs") = 0 umount2("./948/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./948/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./948/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./948/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./948/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./948/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./948") = 0 mkdir("./949", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6986 ./strace-static-x86_64: Process 6986 attached [pid 6986] chdir("./949") = 0 [pid 6986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6986] setpgid(0, 0) = 0 [pid 6986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6986] write(3, "1000", 4) = 4 [pid 6986] close(3) = 0 [pid 6986] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6986] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6986] memfd_create("syzkaller", 0) = 3 [pid 6986] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6986] 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"..., 2097152) = 2097152 [pid 6986] munmap(0x7f320ee61000, 2097152) = 0 [pid 6986] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6986] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6986] close(3) = 0 [pid 6986] mkdir("./file1", 0777) = 0 [pid 6986] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6986] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6986] chdir("./file1") = 0 [pid 6986] ioctl(4, LOOP_CLR_FD) = 0 [pid 6986] close(4) = 0 [pid 6986] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6986] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6986] ftruncate(5, 33587199) = 0 [ 256.513799][ T6986] loop0: detected capacity change from 0 to 4096 [ 256.526628][ T6986] NILFS (loop0): invalid segment: Checksum error in segment payload [ 256.534685][ T6986] NILFS (loop0): trying rollback from an earlier position [ 256.545807][ T6986] NILFS (loop0): recovery complete [ 256.551558][ T6987] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6986] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6986] exit_group(0) = ? [pid 6986] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6986, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./949", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./949", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./949/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./949/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./949/binderfs") = 0 umount2("./949/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./949/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./949/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./949/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./949/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./949/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./949") = 0 mkdir("./950", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6988 ./strace-static-x86_64: Process 6988 attached [pid 6988] chdir("./950") = 0 [pid 6988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6988] setpgid(0, 0) = 0 [pid 6988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6988] write(3, "1000", 4) = 4 [pid 6988] close(3) = 0 [pid 6988] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6988] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6988] memfd_create("syzkaller", 0) = 3 [pid 6988] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6988] 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"..., 2097152) = 2097152 [pid 6988] munmap(0x7f320ee61000, 2097152) = 0 [pid 6988] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6988] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6988] close(3) = 0 [pid 6988] mkdir("./file1", 0777) = 0 [pid 6988] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6988] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6988] chdir("./file1") = 0 [pid 6988] ioctl(4, LOOP_CLR_FD) = 0 [pid 6988] close(4) = 0 [pid 6988] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6988] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6988] ftruncate(5, 33587199) = 0 [ 256.726239][ T6988] loop0: detected capacity change from 0 to 4096 [ 256.738404][ T6988] NILFS (loop0): invalid segment: Checksum error in segment payload [ 256.746639][ T6988] NILFS (loop0): trying rollback from an earlier position [ 256.758473][ T6988] NILFS (loop0): recovery complete [ 256.764295][ T6989] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6988] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6988] exit_group(0) = ? [pid 6988] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6988, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./950", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./950", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./950/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./950/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./950/binderfs") = 0 umount2("./950/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./950/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./950/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./950/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./950/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./950/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./950") = 0 mkdir("./951", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6990 ./strace-static-x86_64: Process 6990 attached [pid 6990] chdir("./951") = 0 [pid 6990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6990] setpgid(0, 0) = 0 [pid 6990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6990] write(3, "1000", 4) = 4 [pid 6990] close(3) = 0 [pid 6990] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6990] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6990] memfd_create("syzkaller", 0) = 3 [pid 6990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6990] 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"..., 2097152) = 2097152 [pid 6990] munmap(0x7f320ee61000, 2097152) = 0 [pid 6990] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6990] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6990] close(3) = 0 [pid 6990] mkdir("./file1", 0777) = 0 [pid 6990] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6990] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6990] chdir("./file1") = 0 [pid 6990] ioctl(4, LOOP_CLR_FD) = 0 [pid 6990] close(4) = 0 [pid 6990] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6990] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6990] ftruncate(5, 33587199) = 0 [ 256.955389][ T6990] loop0: detected capacity change from 0 to 4096 [ 256.967424][ T6990] NILFS (loop0): invalid segment: Checksum error in segment payload [ 256.975620][ T6990] NILFS (loop0): trying rollback from an earlier position [ 256.986920][ T6990] NILFS (loop0): recovery complete [ 256.992781][ T6991] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6990] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6990] exit_group(0) = ? [pid 6990] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6990, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./951", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./951", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./951/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./951/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./951/binderfs") = 0 umount2("./951/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./951/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./951/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./951/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./951/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./951/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./951") = 0 mkdir("./952", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6992 ./strace-static-x86_64: Process 6992 attached [pid 6992] chdir("./952") = 0 [pid 6992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6992] setpgid(0, 0) = 0 [pid 6992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6992] write(3, "1000", 4) = 4 [pid 6992] close(3) = 0 [pid 6992] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6992] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6992] memfd_create("syzkaller", 0) = 3 [pid 6992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6992] 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"..., 2097152) = 2097152 [pid 6992] munmap(0x7f320ee61000, 2097152) = 0 [pid 6992] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6992] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6992] close(3) = 0 [pid 6992] mkdir("./file1", 0777) = 0 [pid 6992] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6992] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6992] chdir("./file1") = 0 [pid 6992] ioctl(4, LOOP_CLR_FD) = 0 [pid 6992] close(4) = 0 [pid 6992] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6992] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6992] ftruncate(5, 33587199) = 0 [ 257.173700][ T6992] loop0: detected capacity change from 0 to 4096 [ 257.186713][ T6992] NILFS (loop0): invalid segment: Checksum error in segment payload [ 257.195034][ T6992] NILFS (loop0): trying rollback from an earlier position [ 257.206386][ T6992] NILFS (loop0): recovery complete [ 257.212355][ T6993] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6992] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6992] exit_group(0) = ? [pid 6992] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6992, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./952", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./952", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./952/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./952/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./952/binderfs") = 0 umount2("./952/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./952/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./952/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./952/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./952/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./952/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./952") = 0 mkdir("./953", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6994 ./strace-static-x86_64: Process 6994 attached [pid 6994] chdir("./953") = 0 [pid 6994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6994] setpgid(0, 0) = 0 [pid 6994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6994] write(3, "1000", 4) = 4 [pid 6994] close(3) = 0 [pid 6994] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6994] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6994] memfd_create("syzkaller", 0) = 3 [pid 6994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6994] 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"..., 2097152) = 2097152 [pid 6994] munmap(0x7f320ee61000, 2097152) = 0 [pid 6994] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6994] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6994] close(3) = 0 [pid 6994] mkdir("./file1", 0777) = 0 [pid 6994] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6994] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6994] chdir("./file1") = 0 [pid 6994] ioctl(4, LOOP_CLR_FD) = 0 [pid 6994] close(4) = 0 [pid 6994] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6994] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6994] ftruncate(5, 33587199) = 0 [ 257.394562][ T6994] loop0: detected capacity change from 0 to 4096 [ 257.407194][ T6994] NILFS (loop0): invalid segment: Checksum error in segment payload [ 257.415279][ T6994] NILFS (loop0): trying rollback from an earlier position [ 257.426403][ T6994] NILFS (loop0): recovery complete [ 257.432371][ T6995] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6994] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6994] exit_group(0) = ? [pid 6994] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6994, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./953", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./953", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./953/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./953/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./953/binderfs") = 0 umount2("./953/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./953/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./953/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./953/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./953/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./953/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./953") = 0 mkdir("./954", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6996 attached , child_tidptr=0x555555c06690) = 6996 [pid 6996] chdir("./954") = 0 [pid 6996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6996] setpgid(0, 0) = 0 [pid 6996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6996] write(3, "1000", 4) = 4 [pid 6996] close(3) = 0 [pid 6996] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6996] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6996] memfd_create("syzkaller", 0) = 3 [pid 6996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6996] 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"..., 2097152) = 2097152 [pid 6996] munmap(0x7f320ee61000, 2097152) = 0 [pid 6996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6996] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6996] close(3) = 0 [pid 6996] mkdir("./file1", 0777) = 0 [pid 6996] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6996] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6996] chdir("./file1") = 0 [pid 6996] ioctl(4, LOOP_CLR_FD) = 0 [pid 6996] close(4) = 0 [pid 6996] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6996] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6996] ftruncate(5, 33587199) = 0 [ 257.627797][ T6996] loop0: detected capacity change from 0 to 4096 [ 257.641015][ T6996] NILFS (loop0): invalid segment: Checksum error in segment payload [ 257.649038][ T6996] NILFS (loop0): trying rollback from an earlier position [ 257.660343][ T6996] NILFS (loop0): recovery complete [ 257.666076][ T6997] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6996] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6996] exit_group(0) = ? [pid 6996] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6996, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./954", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./954", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./954/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./954/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./954/binderfs") = 0 umount2("./954/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./954/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./954/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./954/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./954/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./954/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./954") = 0 mkdir("./955", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 6998 ./strace-static-x86_64: Process 6998 attached [pid 6998] chdir("./955") = 0 [pid 6998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6998] setpgid(0, 0) = 0 [pid 6998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6998] write(3, "1000", 4) = 4 [pid 6998] close(3) = 0 [pid 6998] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6998] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 6998] memfd_create("syzkaller", 0) = 3 [pid 6998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 6998] 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"..., 2097152) = 2097152 [pid 6998] munmap(0x7f320ee61000, 2097152) = 0 [pid 6998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6998] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6998] close(3) = 0 [pid 6998] mkdir("./file1", 0777) = 0 [pid 6998] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 6998] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 6998] chdir("./file1") = 0 [pid 6998] ioctl(4, LOOP_CLR_FD) = 0 [pid 6998] close(4) = 0 [pid 6998] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6998] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 6998] ftruncate(5, 33587199) = 0 [ 257.861082][ T6998] loop0: detected capacity change from 0 to 4096 [ 257.873920][ T6998] NILFS (loop0): invalid segment: Checksum error in segment payload [ 257.882560][ T6998] NILFS (loop0): trying rollback from an earlier position [ 257.894407][ T6998] NILFS (loop0): recovery complete [ 257.900066][ T6999] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6998] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 6998] exit_group(0) = ? [pid 6998] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6998, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./955", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./955", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./955/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./955/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./955/binderfs") = 0 umount2("./955/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./955/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./955/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./955/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./955/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./955/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./955") = 0 mkdir("./956", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7000 attached , child_tidptr=0x555555c06690) = 7000 [pid 7000] chdir("./956") = 0 [pid 7000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7000] setpgid(0, 0) = 0 [pid 7000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7000] write(3, "1000", 4) = 4 [pid 7000] close(3) = 0 [pid 7000] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7000] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7000] memfd_create("syzkaller", 0) = 3 [pid 7000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7000] 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"..., 2097152) = 2097152 [pid 7000] munmap(0x7f320ee61000, 2097152) = 0 [pid 7000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7000] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7000] close(3) = 0 [pid 7000] mkdir("./file1", 0777) = 0 [pid 7000] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7000] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7000] chdir("./file1") = 0 [pid 7000] ioctl(4, LOOP_CLR_FD) = 0 [pid 7000] close(4) = 0 [pid 7000] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7000] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7000] ftruncate(5, 33587199) = 0 [ 258.086091][ T7000] loop0: detected capacity change from 0 to 4096 [ 258.098356][ T7000] NILFS (loop0): invalid segment: Checksum error in segment payload [ 258.106411][ T7000] NILFS (loop0): trying rollback from an earlier position [ 258.117670][ T7000] NILFS (loop0): recovery complete [ 258.123389][ T7001] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7000] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7000] exit_group(0) = ? [pid 7000] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7000, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./956", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./956", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./956/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./956/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./956/binderfs") = 0 umount2("./956/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./956/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./956/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./956/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./956/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./956/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./956") = 0 mkdir("./957", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7002 attached , child_tidptr=0x555555c06690) = 7002 [pid 7002] chdir("./957") = 0 [pid 7002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7002] setpgid(0, 0) = 0 [pid 7002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7002] write(3, "1000", 4) = 4 [pid 7002] close(3) = 0 [pid 7002] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7002] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7002] memfd_create("syzkaller", 0) = 3 [pid 7002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7002] 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"..., 2097152) = 2097152 [pid 7002] munmap(0x7f320ee61000, 2097152) = 0 [pid 7002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7002] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7002] close(3) = 0 [pid 7002] mkdir("./file1", 0777) = 0 [pid 7002] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7002] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7002] chdir("./file1") = 0 [pid 7002] ioctl(4, LOOP_CLR_FD) = 0 [pid 7002] close(4) = 0 [pid 7002] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7002] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7002] ftruncate(5, 33587199) = 0 [ 258.311499][ T7002] loop0: detected capacity change from 0 to 4096 [ 258.322986][ T7002] NILFS (loop0): invalid segment: Checksum error in segment payload [ 258.331079][ T7002] NILFS (loop0): trying rollback from an earlier position [ 258.341909][ T7002] NILFS (loop0): recovery complete [ 258.347544][ T7003] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7002] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7002] exit_group(0) = ? [pid 7002] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7002, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./957", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./957", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./957/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./957/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./957/binderfs") = 0 umount2("./957/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./957/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./957/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./957/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./957/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./957/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./957") = 0 mkdir("./958", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7004 ./strace-static-x86_64: Process 7004 attached [pid 7004] chdir("./958") = 0 [pid 7004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7004] setpgid(0, 0) = 0 [pid 7004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7004] write(3, "1000", 4) = 4 [pid 7004] close(3) = 0 [pid 7004] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7004] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7004] memfd_create("syzkaller", 0) = 3 [pid 7004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7004] 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"..., 2097152) = 2097152 [pid 7004] munmap(0x7f320ee61000, 2097152) = 0 [pid 7004] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7004] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7004] close(3) = 0 [pid 7004] mkdir("./file1", 0777) = 0 [pid 7004] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7004] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7004] chdir("./file1") = 0 [pid 7004] ioctl(4, LOOP_CLR_FD) = 0 [pid 7004] close(4) = 0 [pid 7004] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7004] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7004] ftruncate(5, 33587199) = 0 [ 258.522972][ T7004] loop0: detected capacity change from 0 to 4096 [ 258.535461][ T7004] NILFS (loop0): invalid segment: Checksum error in segment payload [ 258.543573][ T7004] NILFS (loop0): trying rollback from an earlier position [ 258.554723][ T7004] NILFS (loop0): recovery complete [ 258.560555][ T7005] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7004] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7004] exit_group(0) = ? [pid 7004] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7004, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./958", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./958", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./958/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./958/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./958/binderfs") = 0 umount2("./958/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./958/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./958/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./958/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./958/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./958/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./958") = 0 mkdir("./959", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7006 attached , child_tidptr=0x555555c06690) = 7006 [pid 7006] chdir("./959") = 0 [pid 7006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7006] setpgid(0, 0) = 0 [pid 7006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7006] write(3, "1000", 4) = 4 [pid 7006] close(3) = 0 [pid 7006] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7006] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7006] memfd_create("syzkaller", 0) = 3 [pid 7006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7006] 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"..., 2097152) = 2097152 [pid 7006] munmap(0x7f320ee61000, 2097152) = 0 [pid 7006] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7006] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7006] close(3) = 0 [pid 7006] mkdir("./file1", 0777) = 0 [pid 7006] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7006] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7006] chdir("./file1") = 0 [pid 7006] ioctl(4, LOOP_CLR_FD) = 0 [pid 7006] close(4) = 0 [pid 7006] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7006] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7006] ftruncate(5, 33587199) = 0 [ 258.743517][ T7006] loop0: detected capacity change from 0 to 4096 [ 258.754721][ T7006] NILFS (loop0): invalid segment: Checksum error in segment payload [ 258.762762][ T7006] NILFS (loop0): trying rollback from an earlier position [ 258.774229][ T7006] NILFS (loop0): recovery complete [ 258.780017][ T7007] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7006] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7006] exit_group(0) = ? [pid 7006] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7006, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./959", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./959", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./959/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./959/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./959/binderfs") = 0 umount2("./959/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./959/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./959/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./959/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./959/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./959/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./959") = 0 mkdir("./960", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7008 ./strace-static-x86_64: Process 7008 attached [pid 7008] chdir("./960") = 0 [pid 7008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7008] setpgid(0, 0) = 0 [pid 7008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7008] write(3, "1000", 4) = 4 [pid 7008] close(3) = 0 [pid 7008] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7008] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7008] memfd_create("syzkaller", 0) = 3 [pid 7008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7008] 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"..., 2097152) = 2097152 [pid 7008] munmap(0x7f320ee61000, 2097152) = 0 [pid 7008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7008] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7008] close(3) = 0 [pid 7008] mkdir("./file1", 0777) = 0 [pid 7008] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7008] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7008] chdir("./file1") = 0 [pid 7008] ioctl(4, LOOP_CLR_FD) = 0 [pid 7008] close(4) = 0 [pid 7008] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7008] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7008] ftruncate(5, 33587199) = 0 [ 258.976026][ T7008] loop0: detected capacity change from 0 to 4096 [ 258.988471][ T7008] NILFS (loop0): invalid segment: Checksum error in segment payload [ 258.996539][ T7008] NILFS (loop0): trying rollback from an earlier position [ 259.007668][ T7008] NILFS (loop0): recovery complete [ 259.013613][ T7009] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7008] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7008] exit_group(0) = ? [pid 7008] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7008, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./960", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./960", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./960/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./960/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./960/binderfs") = 0 umount2("./960/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./960/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./960/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./960/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./960/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./960/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./960") = 0 mkdir("./961", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7010 ./strace-static-x86_64: Process 7010 attached [pid 7010] chdir("./961") = 0 [pid 7010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7010] setpgid(0, 0) = 0 [pid 7010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7010] write(3, "1000", 4) = 4 [pid 7010] close(3) = 0 [pid 7010] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7010] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7010] memfd_create("syzkaller", 0) = 3 [pid 7010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7010] 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"..., 2097152) = 2097152 [pid 7010] munmap(0x7f320ee61000, 2097152) = 0 [pid 7010] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7010] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7010] close(3) = 0 [pid 7010] mkdir("./file1", 0777) = 0 [pid 7010] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7010] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7010] chdir("./file1") = 0 [pid 7010] ioctl(4, LOOP_CLR_FD) = 0 [pid 7010] close(4) = 0 [pid 7010] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7010] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7010] ftruncate(5, 33587199) = 0 [ 259.202802][ T7010] loop0: detected capacity change from 0 to 4096 [ 259.215164][ T7010] NILFS (loop0): invalid segment: Checksum error in segment payload [ 259.223280][ T7010] NILFS (loop0): trying rollback from an earlier position [ 259.235046][ T7010] NILFS (loop0): recovery complete [ 259.240914][ T7011] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7010] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7010] exit_group(0) = ? [pid 7010] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7010, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./961", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./961", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./961/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./961/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./961/binderfs") = 0 umount2("./961/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./961/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./961/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./961/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./961/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./961/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./961") = 0 mkdir("./962", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7012 ./strace-static-x86_64: Process 7012 attached [pid 7012] chdir("./962") = 0 [pid 7012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7012] setpgid(0, 0) = 0 [pid 7012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7012] write(3, "1000", 4) = 4 [pid 7012] close(3) = 0 [pid 7012] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7012] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7012] memfd_create("syzkaller", 0) = 3 [pid 7012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7012] 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"..., 2097152) = 2097152 [pid 7012] munmap(0x7f320ee61000, 2097152) = 0 [pid 7012] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7012] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7012] close(3) = 0 [pid 7012] mkdir("./file1", 0777) = 0 [pid 7012] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7012] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7012] chdir("./file1") = 0 [pid 7012] ioctl(4, LOOP_CLR_FD) = 0 [pid 7012] close(4) = 0 [pid 7012] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7012] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7012] ftruncate(5, 33587199) = 0 [ 259.427544][ T7012] loop0: detected capacity change from 0 to 4096 [ 259.439228][ T7012] NILFS (loop0): invalid segment: Checksum error in segment payload [ 259.447315][ T7012] NILFS (loop0): trying rollback from an earlier position [ 259.458437][ T7012] NILFS (loop0): recovery complete [ 259.464146][ T7013] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7012] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7012] exit_group(0) = ? [pid 7012] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7012, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./962", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./962", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./962/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./962/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./962/binderfs") = 0 umount2("./962/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./962/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./962/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./962/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./962/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./962/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./962") = 0 mkdir("./963", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7014 ./strace-static-x86_64: Process 7014 attached [pid 7014] chdir("./963") = 0 [pid 7014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7014] setpgid(0, 0) = 0 [pid 7014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7014] write(3, "1000", 4) = 4 [pid 7014] close(3) = 0 [pid 7014] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7014] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7014] memfd_create("syzkaller", 0) = 3 [pid 7014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7014] 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"..., 2097152) = 2097152 [pid 7014] munmap(0x7f320ee61000, 2097152) = 0 [pid 7014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7014] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7014] close(3) = 0 [pid 7014] mkdir("./file1", 0777) = 0 [pid 7014] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7014] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7014] chdir("./file1") = 0 [pid 7014] ioctl(4, LOOP_CLR_FD) = 0 [pid 7014] close(4) = 0 [pid 7014] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7014] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7014] ftruncate(5, 33587199) = 0 [ 259.645381][ T7014] loop0: detected capacity change from 0 to 4096 [ 259.657717][ T7014] NILFS (loop0): invalid segment: Checksum error in segment payload [ 259.666229][ T7014] NILFS (loop0): trying rollback from an earlier position [ 259.677485][ T7014] NILFS (loop0): recovery complete [ 259.683122][ T7015] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7014] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7014] exit_group(0) = ? [pid 7014] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7014, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./963", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./963", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./963/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./963/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./963/binderfs") = 0 umount2("./963/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./963/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./963/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./963/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./963/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./963/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./963") = 0 mkdir("./964", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7016 ./strace-static-x86_64: Process 7016 attached [pid 7016] chdir("./964") = 0 [pid 7016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7016] setpgid(0, 0) = 0 [pid 7016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7016] write(3, "1000", 4) = 4 [pid 7016] close(3) = 0 [pid 7016] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7016] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7016] memfd_create("syzkaller", 0) = 3 [pid 7016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7016] 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"..., 2097152) = 2097152 [pid 7016] munmap(0x7f320ee61000, 2097152) = 0 [pid 7016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7016] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7016] close(3) = 0 [pid 7016] mkdir("./file1", 0777) = 0 [pid 7016] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7016] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7016] chdir("./file1") = 0 [pid 7016] ioctl(4, LOOP_CLR_FD) = 0 [pid 7016] close(4) = 0 [pid 7016] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7016] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7016] ftruncate(5, 33587199) = 0 [ 259.866789][ T7016] loop0: detected capacity change from 0 to 4096 [ 259.878646][ T7016] NILFS (loop0): invalid segment: Checksum error in segment payload [ 259.886699][ T7016] NILFS (loop0): trying rollback from an earlier position [ 259.898413][ T7016] NILFS (loop0): recovery complete [ 259.904148][ T7017] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7016] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7016] exit_group(0) = ? [pid 7016] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7016, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./964", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./964", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./964/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./964/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./964/binderfs") = 0 umount2("./964/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./964/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./964/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./964/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./964/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./964/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./964") = 0 mkdir("./965", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7018 ./strace-static-x86_64: Process 7018 attached [pid 7018] chdir("./965") = 0 [pid 7018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7018] setpgid(0, 0) = 0 [pid 7018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7018] write(3, "1000", 4) = 4 [pid 7018] close(3) = 0 [pid 7018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7018] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7018] memfd_create("syzkaller", 0) = 3 [pid 7018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7018] 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"..., 2097152) = 2097152 [pid 7018] munmap(0x7f320ee61000, 2097152) = 0 [pid 7018] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7018] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7018] close(3) = 0 [pid 7018] mkdir("./file1", 0777) = 0 [pid 7018] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7018] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7018] chdir("./file1") = 0 [pid 7018] ioctl(4, LOOP_CLR_FD) = 0 [pid 7018] close(4) = 0 [pid 7018] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7018] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7018] ftruncate(5, 33587199) = 0 [ 260.089559][ T7018] loop0: detected capacity change from 0 to 4096 [ 260.101193][ T7018] NILFS (loop0): invalid segment: Checksum error in segment payload [ 260.109184][ T7018] NILFS (loop0): trying rollback from an earlier position [ 260.120722][ T7018] NILFS (loop0): recovery complete [ 260.126279][ T7019] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7018] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7018] exit_group(0) = ? [pid 7018] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7018, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./965", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./965", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./965/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./965/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./965/binderfs") = 0 umount2("./965/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./965/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./965/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./965/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./965/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./965/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./965") = 0 mkdir("./966", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7020 ./strace-static-x86_64: Process 7020 attached [pid 7020] chdir("./966") = 0 [pid 7020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7020] setpgid(0, 0) = 0 [pid 7020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7020] write(3, "1000", 4) = 4 [pid 7020] close(3) = 0 [pid 7020] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7020] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7020] memfd_create("syzkaller", 0) = 3 [pid 7020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7020] 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"..., 2097152) = 2097152 [pid 7020] munmap(0x7f320ee61000, 2097152) = 0 [pid 7020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7020] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7020] close(3) = 0 [pid 7020] mkdir("./file1", 0777) = 0 [pid 7020] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7020] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7020] chdir("./file1") = 0 [pid 7020] ioctl(4, LOOP_CLR_FD) = 0 [pid 7020] close(4) = 0 [pid 7020] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7020] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7020] ftruncate(5, 33587199) = 0 [ 260.318630][ T7020] loop0: detected capacity change from 0 to 4096 [ 260.331024][ T7020] NILFS (loop0): invalid segment: Checksum error in segment payload [ 260.339037][ T7020] NILFS (loop0): trying rollback from an earlier position [ 260.350728][ T7020] NILFS (loop0): recovery complete [ 260.356554][ T7021] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7020] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7020] exit_group(0) = ? [pid 7020] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7020, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./966", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./966", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./966/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./966/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./966/binderfs") = 0 umount2("./966/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./966/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./966/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./966/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./966/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./966/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./966") = 0 mkdir("./967", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7022 attached , child_tidptr=0x555555c06690) = 7022 [pid 7022] chdir("./967") = 0 [pid 7022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7022] setpgid(0, 0) = 0 [pid 7022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7022] write(3, "1000", 4) = 4 [pid 7022] close(3) = 0 [pid 7022] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7022] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7022] memfd_create("syzkaller", 0) = 3 [pid 7022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7022] 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"..., 2097152) = 2097152 [pid 7022] munmap(0x7f320ee61000, 2097152) = 0 [pid 7022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7022] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7022] close(3) = 0 [pid 7022] mkdir("./file1", 0777) = 0 [pid 7022] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7022] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7022] chdir("./file1") = 0 [pid 7022] ioctl(4, LOOP_CLR_FD) = 0 [pid 7022] close(4) = 0 [pid 7022] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7022] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7022] ftruncate(5, 33587199) = 0 [ 260.550395][ T7022] loop0: detected capacity change from 0 to 4096 [ 260.562833][ T7022] NILFS (loop0): invalid segment: Checksum error in segment payload [ 260.570899][ T7022] NILFS (loop0): trying rollback from an earlier position [ 260.582052][ T7022] NILFS (loop0): recovery complete [ 260.587741][ T7023] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7022] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7022] exit_group(0) = ? [pid 7022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7022, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./967", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./967", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./967/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./967/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./967/binderfs") = 0 umount2("./967/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./967/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./967/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./967/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./967/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./967/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./967") = 0 mkdir("./968", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7024 ./strace-static-x86_64: Process 7024 attached [pid 7024] chdir("./968") = 0 [pid 7024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7024] setpgid(0, 0) = 0 [pid 7024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7024] write(3, "1000", 4) = 4 [pid 7024] close(3) = 0 [pid 7024] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7024] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7024] memfd_create("syzkaller", 0) = 3 [pid 7024] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7024] 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"..., 2097152) = 2097152 [pid 7024] munmap(0x7f320ee61000, 2097152) = 0 [pid 7024] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7024] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7024] close(3) = 0 [pid 7024] mkdir("./file1", 0777) = 0 [pid 7024] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7024] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7024] chdir("./file1") = 0 [pid 7024] ioctl(4, LOOP_CLR_FD) = 0 [pid 7024] close(4) = 0 [pid 7024] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7024] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7024] ftruncate(5, 33587199) = 0 [ 260.775839][ T7024] loop0: detected capacity change from 0 to 4096 [ 260.788655][ T7024] NILFS (loop0): invalid segment: Checksum error in segment payload [ 260.796961][ T7024] NILFS (loop0): trying rollback from an earlier position [ 260.808400][ T7024] NILFS (loop0): recovery complete [ 260.814126][ T7025] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7024] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7024] exit_group(0) = ? [pid 7024] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7024, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./968", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./968", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./968/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./968/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./968/binderfs") = 0 umount2("./968/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./968/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./968/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./968/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./968/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./968/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./968") = 0 mkdir("./969", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7026 ./strace-static-x86_64: Process 7026 attached [pid 7026] chdir("./969") = 0 [pid 7026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7026] setpgid(0, 0) = 0 [pid 7026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7026] write(3, "1000", 4) = 4 [pid 7026] close(3) = 0 [pid 7026] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7026] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7026] memfd_create("syzkaller", 0) = 3 [pid 7026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7026] 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"..., 2097152) = 2097152 [pid 7026] munmap(0x7f320ee61000, 2097152) = 0 [pid 7026] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7026] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7026] close(3) = 0 [pid 7026] mkdir("./file1", 0777) = 0 [pid 7026] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7026] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7026] chdir("./file1") = 0 [pid 7026] ioctl(4, LOOP_CLR_FD) = 0 [pid 7026] close(4) = 0 [pid 7026] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7026] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7026] ftruncate(5, 33587199) = 0 [ 261.003301][ T7026] loop0: detected capacity change from 0 to 4096 [ 261.015810][ T7026] NILFS (loop0): invalid segment: Checksum error in segment payload [ 261.023932][ T7026] NILFS (loop0): trying rollback from an earlier position [ 261.035439][ T7026] NILFS (loop0): recovery complete [ 261.042258][ T7027] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7026] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7026] exit_group(0) = ? [pid 7026] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7026, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./969", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./969", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./969/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./969/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./969/binderfs") = 0 umount2("./969/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./969/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./969/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./969/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./969/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./969/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./969") = 0 mkdir("./970", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7028 attached , child_tidptr=0x555555c06690) = 7028 [pid 7028] chdir("./970") = 0 [pid 7028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7028] setpgid(0, 0) = 0 [pid 7028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7028] write(3, "1000", 4) = 4 [pid 7028] close(3) = 0 [pid 7028] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7028] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7028] memfd_create("syzkaller", 0) = 3 [pid 7028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7028] 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"..., 2097152) = 2097152 [pid 7028] munmap(0x7f320ee61000, 2097152) = 0 [pid 7028] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7028] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7028] close(3) = 0 [pid 7028] mkdir("./file1", 0777) = 0 [pid 7028] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7028] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7028] chdir("./file1") = 0 [pid 7028] ioctl(4, LOOP_CLR_FD) = 0 [pid 7028] close(4) = 0 [pid 7028] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7028] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7028] ftruncate(5, 33587199) = 0 [ 261.229081][ T7028] loop0: detected capacity change from 0 to 4096 [ 261.240896][ T7028] NILFS (loop0): invalid segment: Checksum error in segment payload [ 261.248993][ T7028] NILFS (loop0): trying rollback from an earlier position [ 261.260116][ T7028] NILFS (loop0): recovery complete [ 261.265685][ T7029] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7028] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7028] exit_group(0) = ? [pid 7028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7028, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./970", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./970", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./970/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./970/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./970/binderfs") = 0 umount2("./970/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./970/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./970/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./970/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./970/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./970/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./970") = 0 mkdir("./971", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7030 ./strace-static-x86_64: Process 7030 attached [pid 7030] chdir("./971") = 0 [pid 7030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7030] setpgid(0, 0) = 0 [pid 7030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7030] write(3, "1000", 4) = 4 [pid 7030] close(3) = 0 [pid 7030] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7030] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7030] memfd_create("syzkaller", 0) = 3 [pid 7030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7030] 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"..., 2097152) = 2097152 [pid 7030] munmap(0x7f320ee61000, 2097152) = 0 [pid 7030] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7030] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7030] close(3) = 0 [pid 7030] mkdir("./file1", 0777) = 0 [pid 7030] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7030] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7030] chdir("./file1") = 0 [pid 7030] ioctl(4, LOOP_CLR_FD) = 0 [pid 7030] close(4) = 0 [pid 7030] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7030] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7030] ftruncate(5, 33587199) = 0 [ 261.451624][ T7030] loop0: detected capacity change from 0 to 4096 [ 261.463927][ T7030] NILFS (loop0): invalid segment: Checksum error in segment payload [ 261.472118][ T7030] NILFS (loop0): trying rollback from an earlier position [ 261.483453][ T7030] NILFS (loop0): recovery complete [ 261.489088][ T7031] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7030] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7030] exit_group(0) = ? [pid 7030] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7030, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./971", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./971", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./971/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./971/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./971/binderfs") = 0 umount2("./971/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./971/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./971/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./971/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./971/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./971/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./971") = 0 mkdir("./972", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7032 ./strace-static-x86_64: Process 7032 attached [pid 7032] chdir("./972") = 0 [pid 7032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7032] setpgid(0, 0) = 0 [pid 7032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7032] write(3, "1000", 4) = 4 [pid 7032] close(3) = 0 [pid 7032] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7032] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7032] memfd_create("syzkaller", 0) = 3 [pid 7032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7032] 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"..., 2097152) = 2097152 [pid 7032] munmap(0x7f320ee61000, 2097152) = 0 [pid 7032] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7032] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7032] close(3) = 0 [pid 7032] mkdir("./file1", 0777) = 0 [pid 7032] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7032] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7032] chdir("./file1") = 0 [pid 7032] ioctl(4, LOOP_CLR_FD) = 0 [pid 7032] close(4) = 0 [pid 7032] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7032] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7032] ftruncate(5, 33587199) = 0 [ 261.672379][ T7032] loop0: detected capacity change from 0 to 4096 [ 261.684756][ T7032] NILFS (loop0): invalid segment: Checksum error in segment payload [ 261.692824][ T7032] NILFS (loop0): trying rollback from an earlier position [ 261.704113][ T7032] NILFS (loop0): recovery complete [ 261.709729][ T7033] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7032] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7032] exit_group(0) = ? [pid 7032] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7032, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./972", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./972", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./972/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./972/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./972/binderfs") = 0 umount2("./972/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./972/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./972/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./972/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./972/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./972/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./972") = 0 mkdir("./973", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7034 ./strace-static-x86_64: Process 7034 attached [pid 7034] chdir("./973") = 0 [pid 7034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7034] setpgid(0, 0) = 0 [pid 7034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7034] write(3, "1000", 4) = 4 [pid 7034] close(3) = 0 [pid 7034] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7034] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7034] memfd_create("syzkaller", 0) = 3 [pid 7034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7034] 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"..., 2097152) = 2097152 [pid 7034] munmap(0x7f320ee61000, 2097152) = 0 [pid 7034] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7034] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7034] close(3) = 0 [pid 7034] mkdir("./file1", 0777) = 0 [pid 7034] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7034] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7034] chdir("./file1") = 0 [pid 7034] ioctl(4, LOOP_CLR_FD) = 0 [pid 7034] close(4) = 0 [pid 7034] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7034] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7034] ftruncate(5, 33587199) = 0 [ 261.899819][ T7034] loop0: detected capacity change from 0 to 4096 [ 261.912713][ T7034] NILFS (loop0): invalid segment: Checksum error in segment payload [ 261.920779][ T7034] NILFS (loop0): trying rollback from an earlier position [ 261.931900][ T7034] NILFS (loop0): recovery complete [ 261.937659][ T7035] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7034] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7034] exit_group(0) = ? [pid 7034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7034, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./973", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./973", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./973/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./973/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./973/binderfs") = 0 umount2("./973/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./973/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./973/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./973/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./973/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./973/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./973") = 0 mkdir("./974", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7036 ./strace-static-x86_64: Process 7036 attached [pid 7036] chdir("./974") = 0 [pid 7036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7036] setpgid(0, 0) = 0 [pid 7036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7036] write(3, "1000", 4) = 4 [pid 7036] close(3) = 0 [pid 7036] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7036] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7036] memfd_create("syzkaller", 0) = 3 [pid 7036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7036] 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"..., 2097152) = 2097152 [pid 7036] munmap(0x7f320ee61000, 2097152) = 0 [pid 7036] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7036] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7036] close(3) = 0 [pid 7036] mkdir("./file1", 0777) = 0 [pid 7036] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7036] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7036] chdir("./file1") = 0 [pid 7036] ioctl(4, LOOP_CLR_FD) = 0 [pid 7036] close(4) = 0 [pid 7036] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7036] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7036] ftruncate(5, 33587199) = 0 [ 262.127438][ T7036] loop0: detected capacity change from 0 to 4096 [ 262.140729][ T7036] NILFS (loop0): invalid segment: Checksum error in segment payload [ 262.148760][ T7036] NILFS (loop0): trying rollback from an earlier position [ 262.159889][ T7036] NILFS (loop0): recovery complete [ 262.165608][ T7037] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7036] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7036] exit_group(0) = ? [pid 7036] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7036, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./974", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./974", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./974/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./974/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./974/binderfs") = 0 umount2("./974/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./974/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./974/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./974/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./974/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./974/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./974") = 0 mkdir("./975", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7038 ./strace-static-x86_64: Process 7038 attached [pid 7038] chdir("./975") = 0 [pid 7038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7038] setpgid(0, 0) = 0 [pid 7038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7038] write(3, "1000", 4) = 4 [pid 7038] close(3) = 0 [pid 7038] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7038] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7038] memfd_create("syzkaller", 0) = 3 [pid 7038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7038] 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"..., 2097152) = 2097152 [pid 7038] munmap(0x7f320ee61000, 2097152) = 0 [pid 7038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7038] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7038] close(3) = 0 [pid 7038] mkdir("./file1", 0777) = 0 [pid 7038] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7038] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7038] chdir("./file1") = 0 [pid 7038] ioctl(4, LOOP_CLR_FD) = 0 [pid 7038] close(4) = 0 [pid 7038] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7038] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7038] ftruncate(5, 33587199) = 0 [ 262.354584][ T7038] loop0: detected capacity change from 0 to 4096 [ 262.367421][ T7038] NILFS (loop0): invalid segment: Checksum error in segment payload [ 262.375946][ T7038] NILFS (loop0): trying rollback from an earlier position [ 262.388247][ T7038] NILFS (loop0): recovery complete [ 262.394206][ T7039] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7038] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7038] exit_group(0) = ? [pid 7038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7038, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./975", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./975", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./975/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./975/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./975/binderfs") = 0 umount2("./975/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./975/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./975/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./975/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./975/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./975/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./975") = 0 mkdir("./976", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7040 attached , child_tidptr=0x555555c06690) = 7040 [pid 7040] chdir("./976") = 0 [pid 7040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7040] setpgid(0, 0) = 0 [pid 7040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7040] write(3, "1000", 4) = 4 [pid 7040] close(3) = 0 [pid 7040] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7040] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7040] memfd_create("syzkaller", 0) = 3 [pid 7040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7040] 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"..., 2097152) = 2097152 [pid 7040] munmap(0x7f320ee61000, 2097152) = 0 [pid 7040] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7040] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7040] close(3) = 0 [pid 7040] mkdir("./file1", 0777) = 0 [pid 7040] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7040] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7040] chdir("./file1") = 0 [pid 7040] ioctl(4, LOOP_CLR_FD) = 0 [pid 7040] close(4) = 0 [pid 7040] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7040] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7040] ftruncate(5, 33587199) = 0 [ 262.586089][ T7040] loop0: detected capacity change from 0 to 4096 [ 262.598355][ T7040] NILFS (loop0): invalid segment: Checksum error in segment payload [ 262.606769][ T7040] NILFS (loop0): trying rollback from an earlier position [ 262.618381][ T7040] NILFS (loop0): recovery complete [ 262.624323][ T7041] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7040] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7040] exit_group(0) = ? [pid 7040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7040, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./976", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./976", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./976/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./976/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./976/binderfs") = 0 umount2("./976/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./976/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./976/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./976/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./976/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./976/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./976") = 0 mkdir("./977", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7042 ./strace-static-x86_64: Process 7042 attached [pid 7042] chdir("./977") = 0 [pid 7042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7042] setpgid(0, 0) = 0 [pid 7042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7042] write(3, "1000", 4) = 4 [pid 7042] close(3) = 0 [pid 7042] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7042] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7042] memfd_create("syzkaller", 0) = 3 [pid 7042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7042] 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"..., 2097152) = 2097152 [pid 7042] munmap(0x7f320ee61000, 2097152) = 0 [pid 7042] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7042] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7042] close(3) = 0 [pid 7042] mkdir("./file1", 0777) = 0 [pid 7042] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7042] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7042] chdir("./file1") = 0 [pid 7042] ioctl(4, LOOP_CLR_FD) = 0 [pid 7042] close(4) = 0 [pid 7042] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7042] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7042] ftruncate(5, 33587199) = 0 [ 262.816824][ T7042] loop0: detected capacity change from 0 to 4096 [ 262.828352][ T7042] NILFS (loop0): invalid segment: Checksum error in segment payload [ 262.836426][ T7042] NILFS (loop0): trying rollback from an earlier position [ 262.847628][ T7042] NILFS (loop0): recovery complete [ 262.853530][ T7043] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7042] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7042] exit_group(0) = ? [pid 7042] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7042, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./977", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./977", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./977/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./977/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./977/binderfs") = 0 umount2("./977/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./977/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./977/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./977/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./977/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./977/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./977") = 0 mkdir("./978", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7044 attached , child_tidptr=0x555555c06690) = 7044 [pid 7044] chdir("./978") = 0 [pid 7044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7044] setpgid(0, 0) = 0 [pid 7044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7044] write(3, "1000", 4) = 4 [pid 7044] close(3) = 0 [pid 7044] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7044] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7044] memfd_create("syzkaller", 0) = 3 [pid 7044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7044] 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"..., 2097152) = 2097152 [pid 7044] munmap(0x7f320ee61000, 2097152) = 0 [pid 7044] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7044] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7044] close(3) = 0 [pid 7044] mkdir("./file1", 0777) = 0 [pid 7044] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7044] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7044] chdir("./file1") = 0 [pid 7044] ioctl(4, LOOP_CLR_FD) = 0 [pid 7044] close(4) = 0 [pid 7044] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7044] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7044] ftruncate(5, 33587199) = 0 [ 263.054062][ T7044] loop0: detected capacity change from 0 to 4096 [ 263.066692][ T7044] NILFS (loop0): invalid segment: Checksum error in segment payload [ 263.074782][ T7044] NILFS (loop0): trying rollback from an earlier position [ 263.086492][ T7044] NILFS (loop0): recovery complete [ 263.092319][ T7045] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7044] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7044] exit_group(0) = ? [pid 7044] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7044, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./978", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./978", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./978/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./978/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./978/binderfs") = 0 umount2("./978/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./978/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./978/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./978/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./978/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./978/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./978") = 0 mkdir("./979", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7046 ./strace-static-x86_64: Process 7046 attached [pid 7046] chdir("./979") = 0 [pid 7046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7046] setpgid(0, 0) = 0 [pid 7046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7046] write(3, "1000", 4) = 4 [pid 7046] close(3) = 0 [pid 7046] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7046] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7046] memfd_create("syzkaller", 0) = 3 [pid 7046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7046] 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"..., 2097152) = 2097152 [pid 7046] munmap(0x7f320ee61000, 2097152) = 0 [pid 7046] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7046] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7046] close(3) = 0 [pid 7046] mkdir("./file1", 0777) = 0 [pid 7046] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7046] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7046] chdir("./file1") = 0 [pid 7046] ioctl(4, LOOP_CLR_FD) = 0 [pid 7046] close(4) = 0 [pid 7046] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7046] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7046] ftruncate(5, 33587199) = 0 [ 263.304215][ T7046] loop0: detected capacity change from 0 to 4096 [ 263.316853][ T7046] NILFS (loop0): invalid segment: Checksum error in segment payload [ 263.324918][ T7046] NILFS (loop0): trying rollback from an earlier position [ 263.336609][ T7046] NILFS (loop0): recovery complete [ 263.342353][ T7047] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7046] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7046] exit_group(0) = ? [pid 7046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7046, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./979", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./979", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./979/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./979/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./979/binderfs") = 0 umount2("./979/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./979/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./979/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./979/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./979/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./979/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./979") = 0 mkdir("./980", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7048 attached [pid 7048] chdir("./980") = 0 [pid 7048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7048] setpgid(0, 0) = 0 [pid 7048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7048 [pid 7048] write(3, "1000", 4) = 4 [pid 7048] close(3) = 0 [pid 7048] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7048] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7048] memfd_create("syzkaller", 0) = 3 [pid 7048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7048] 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"..., 2097152) = 2097152 [pid 7048] munmap(0x7f320ee61000, 2097152) = 0 [pid 7048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7048] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7048] close(3) = 0 [pid 7048] mkdir("./file1", 0777) = 0 [pid 7048] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7048] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7048] chdir("./file1") = 0 [pid 7048] ioctl(4, LOOP_CLR_FD) = 0 [pid 7048] close(4) = 0 [pid 7048] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7048] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7048] ftruncate(5, 33587199) = 0 [ 263.543355][ T7048] loop0: detected capacity change from 0 to 4096 [ 263.556642][ T7048] NILFS (loop0): invalid segment: Checksum error in segment payload [ 263.564705][ T7048] NILFS (loop0): trying rollback from an earlier position [ 263.575954][ T7048] NILFS (loop0): recovery complete [ 263.581654][ T7049] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7048] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7048] exit_group(0) = ? [pid 7048] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7048, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./980", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./980", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./980/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./980/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./980/binderfs") = 0 umount2("./980/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./980/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./980/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./980/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./980/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./980/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./980") = 0 mkdir("./981", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7050 ./strace-static-x86_64: Process 7050 attached [pid 7050] chdir("./981") = 0 [pid 7050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7050] setpgid(0, 0) = 0 [pid 7050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7050] write(3, "1000", 4) = 4 [pid 7050] close(3) = 0 [pid 7050] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7050] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7050] memfd_create("syzkaller", 0) = 3 [pid 7050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7050] 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"..., 2097152) = 2097152 [pid 7050] munmap(0x7f320ee61000, 2097152) = 0 [pid 7050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7050] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7050] close(3) = 0 [pid 7050] mkdir("./file1", 0777) = 0 [pid 7050] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7050] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7050] chdir("./file1") = 0 [pid 7050] ioctl(4, LOOP_CLR_FD) = 0 [pid 7050] close(4) = 0 [pid 7050] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7050] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7050] ftruncate(5, 33587199) = 0 [ 263.769984][ T7050] loop0: detected capacity change from 0 to 4096 [ 263.781671][ T7050] NILFS (loop0): invalid segment: Checksum error in segment payload [ 263.789686][ T7050] NILFS (loop0): trying rollback from an earlier position [ 263.801383][ T7050] NILFS (loop0): recovery complete [ 263.807289][ T7051] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7050] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7050] exit_group(0) = ? [pid 7050] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7050, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./981", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./981", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./981/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./981/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./981/binderfs") = 0 umount2("./981/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./981/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./981/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./981/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./981/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./981/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./981") = 0 mkdir("./982", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7052 ./strace-static-x86_64: Process 7052 attached [pid 7052] chdir("./982") = 0 [pid 7052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7052] setpgid(0, 0) = 0 [pid 7052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7052] write(3, "1000", 4) = 4 [pid 7052] close(3) = 0 [pid 7052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7052] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7052] memfd_create("syzkaller", 0) = 3 [pid 7052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7052] 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"..., 2097152) = 2097152 [pid 7052] munmap(0x7f320ee61000, 2097152) = 0 [pid 7052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7052] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7052] close(3) = 0 [pid 7052] mkdir("./file1", 0777) = 0 [pid 7052] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7052] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7052] chdir("./file1") = 0 [pid 7052] ioctl(4, LOOP_CLR_FD) = 0 [pid 7052] close(4) = 0 [pid 7052] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7052] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7052] ftruncate(5, 33587199) = 0 [ 263.991575][ T7052] loop0: detected capacity change from 0 to 4096 [ 264.003692][ T7052] NILFS (loop0): invalid segment: Checksum error in segment payload [ 264.012013][ T7052] NILFS (loop0): trying rollback from an earlier position [ 264.023220][ T7052] NILFS (loop0): recovery complete [ 264.029111][ T7053] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7052] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7052] exit_group(0) = ? [pid 7052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7052, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./982", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./982", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./982/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./982/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./982/binderfs") = 0 umount2("./982/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./982/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./982/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./982/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./982/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./982/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./982") = 0 mkdir("./983", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7054 ./strace-static-x86_64: Process 7054 attached [pid 7054] chdir("./983") = 0 [pid 7054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7054] setpgid(0, 0) = 0 [pid 7054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7054] write(3, "1000", 4) = 4 [pid 7054] close(3) = 0 [pid 7054] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7054] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7054] memfd_create("syzkaller", 0) = 3 [pid 7054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7054] 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"..., 2097152) = 2097152 [pid 7054] munmap(0x7f320ee61000, 2097152) = 0 [pid 7054] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7054] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7054] close(3) = 0 [pid 7054] mkdir("./file1", 0777) = 0 [pid 7054] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7054] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7054] chdir("./file1") = 0 [pid 7054] ioctl(4, LOOP_CLR_FD) = 0 [pid 7054] close(4) = 0 [pid 7054] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7054] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7054] ftruncate(5, 33587199) = 0 [ 264.225257][ T7054] loop0: detected capacity change from 0 to 4096 [ 264.237655][ T7054] NILFS (loop0): invalid segment: Checksum error in segment payload [ 264.245799][ T7054] NILFS (loop0): trying rollback from an earlier position [ 264.257090][ T7054] NILFS (loop0): recovery complete [ 264.262799][ T7055] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7054] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7054] exit_group(0) = ? [pid 7054] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7054, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./983", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./983", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./983/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./983/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./983/binderfs") = 0 umount2("./983/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./983/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./983/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./983/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./983/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./983/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./983") = 0 mkdir("./984", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7056 attached , child_tidptr=0x555555c06690) = 7056 [pid 7056] chdir("./984") = 0 [pid 7056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7056] setpgid(0, 0) = 0 [pid 7056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7056] write(3, "1000", 4) = 4 [pid 7056] close(3) = 0 [pid 7056] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7056] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7056] memfd_create("syzkaller", 0) = 3 [pid 7056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7056] 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"..., 2097152) = 2097152 [pid 7056] munmap(0x7f320ee61000, 2097152) = 0 [pid 7056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7056] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7056] close(3) = 0 [pid 7056] mkdir("./file1", 0777) = 0 [pid 7056] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7056] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7056] chdir("./file1") = 0 [pid 7056] ioctl(4, LOOP_CLR_FD) = 0 [pid 7056] close(4) = 0 [pid 7056] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7056] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7056] ftruncate(5, 33587199) = 0 [ 264.456379][ T7056] loop0: detected capacity change from 0 to 4096 [ 264.468352][ T7056] NILFS (loop0): invalid segment: Checksum error in segment payload [ 264.476702][ T7056] NILFS (loop0): trying rollback from an earlier position [ 264.487967][ T7056] NILFS (loop0): recovery complete [ 264.493751][ T7057] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7056] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7056] exit_group(0) = ? [pid 7056] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7056, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./984", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./984", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./984/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./984/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./984/binderfs") = 0 umount2("./984/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./984/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./984/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./984/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./984/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./984/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./984") = 0 mkdir("./985", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7058 ./strace-static-x86_64: Process 7058 attached [pid 7058] chdir("./985") = 0 [pid 7058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7058] setpgid(0, 0) = 0 [pid 7058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7058] write(3, "1000", 4) = 4 [pid 7058] close(3) = 0 [pid 7058] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7058] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7058] memfd_create("syzkaller", 0) = 3 [pid 7058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7058] 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"..., 2097152) = 2097152 [pid 7058] munmap(0x7f320ee61000, 2097152) = 0 [pid 7058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7058] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7058] close(3) = 0 [pid 7058] mkdir("./file1", 0777) = 0 [pid 7058] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7058] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7058] chdir("./file1") = 0 [pid 7058] ioctl(4, LOOP_CLR_FD) = 0 [pid 7058] close(4) = 0 [pid 7058] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7058] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7058] ftruncate(5, 33587199) = 0 [ 264.678974][ T7058] loop0: detected capacity change from 0 to 4096 [ 264.691669][ T7058] NILFS (loop0): invalid segment: Checksum error in segment payload [ 264.699834][ T7058] NILFS (loop0): trying rollback from an earlier position [ 264.711365][ T7058] NILFS (loop0): recovery complete [ 264.717183][ T7059] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7058] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7058] exit_group(0) = ? [pid 7058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7058, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./985", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./985", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./985/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./985/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./985/binderfs") = 0 umount2("./985/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./985/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./985/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./985/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./985/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./985/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./985") = 0 mkdir("./986", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7060 ./strace-static-x86_64: Process 7060 attached [pid 7060] chdir("./986") = 0 [pid 7060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7060] setpgid(0, 0) = 0 [pid 7060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7060] write(3, "1000", 4) = 4 [pid 7060] close(3) = 0 [pid 7060] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7060] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7060] memfd_create("syzkaller", 0) = 3 [pid 7060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7060] 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"..., 2097152) = 2097152 [pid 7060] munmap(0x7f320ee61000, 2097152) = 0 [pid 7060] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7060] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7060] close(3) = 0 [pid 7060] mkdir("./file1", 0777) = 0 [pid 7060] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7060] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7060] chdir("./file1") = 0 [pid 7060] ioctl(4, LOOP_CLR_FD) = 0 [pid 7060] close(4) = 0 [pid 7060] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7060] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7060] ftruncate(5, 33587199) = 0 [ 264.905025][ T7060] loop0: detected capacity change from 0 to 4096 [ 264.917950][ T7060] NILFS (loop0): invalid segment: Checksum error in segment payload [ 264.926068][ T7060] NILFS (loop0): trying rollback from an earlier position [ 264.937189][ T7060] NILFS (loop0): recovery complete [ 264.942889][ T7061] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7060] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7060] exit_group(0) = ? [pid 7060] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7060, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./986", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./986", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./986/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./986/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./986/binderfs") = 0 umount2("./986/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./986/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./986/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./986/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./986/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./986/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./986") = 0 mkdir("./987", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7062 attached , child_tidptr=0x555555c06690) = 7062 [pid 7062] chdir("./987") = 0 [pid 7062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7062] setpgid(0, 0) = 0 [pid 7062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7062] write(3, "1000", 4) = 4 [pid 7062] close(3) = 0 [pid 7062] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7062] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7062] memfd_create("syzkaller", 0) = 3 [pid 7062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7062] 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"..., 2097152) = 2097152 [pid 7062] munmap(0x7f320ee61000, 2097152) = 0 [pid 7062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7062] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7062] close(3) = 0 [pid 7062] mkdir("./file1", 0777) = 0 [pid 7062] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7062] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7062] chdir("./file1") = 0 [pid 7062] ioctl(4, LOOP_CLR_FD) = 0 [pid 7062] close(4) = 0 [pid 7062] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7062] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7062] ftruncate(5, 33587199) = 0 [ 265.147138][ T7062] loop0: detected capacity change from 0 to 4096 [ 265.159263][ T7062] NILFS (loop0): invalid segment: Checksum error in segment payload [ 265.167362][ T7062] NILFS (loop0): trying rollback from an earlier position [ 265.178881][ T7062] NILFS (loop0): recovery complete [ 265.184737][ T7063] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7062] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7062] exit_group(0) = ? [pid 7062] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7062, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./987", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./987", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./987/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./987/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./987/binderfs") = 0 umount2("./987/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./987/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./987/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./987/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./987/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./987/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./987") = 0 mkdir("./988", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7064 attached [pid 7064] chdir("./988") = 0 [pid 7064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7064] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7064 [pid 7064] <... setpgid resumed>) = 0 [pid 7064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7064] write(3, "1000", 4) = 4 [pid 7064] close(3) = 0 [pid 7064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7064] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7064] memfd_create("syzkaller", 0) = 3 [pid 7064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7064] 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"..., 2097152) = 2097152 [pid 7064] munmap(0x7f320ee61000, 2097152) = 0 [pid 7064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7064] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7064] close(3) = 0 [pid 7064] mkdir("./file1", 0777) = 0 [pid 7064] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7064] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7064] chdir("./file1") = 0 [pid 7064] ioctl(4, LOOP_CLR_FD) = 0 [pid 7064] close(4) = 0 [pid 7064] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7064] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7064] ftruncate(5, 33587199) = 0 [ 265.375768][ T7064] loop0: detected capacity change from 0 to 4096 [ 265.388139][ T7064] NILFS (loop0): invalid segment: Checksum error in segment payload [ 265.396559][ T7064] NILFS (loop0): trying rollback from an earlier position [ 265.407803][ T7064] NILFS (loop0): recovery complete [ 265.413817][ T7065] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7064] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7064] exit_group(0) = ? [pid 7064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7064, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./988", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./988", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./988/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./988/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./988/binderfs") = 0 umount2("./988/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./988/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./988/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./988/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./988/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./988/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./988") = 0 mkdir("./989", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7066 attached , child_tidptr=0x555555c06690) = 7066 [pid 7066] chdir("./989") = 0 [pid 7066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7066] setpgid(0, 0) = 0 [pid 7066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7066] write(3, "1000", 4) = 4 [pid 7066] close(3) = 0 [pid 7066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7066] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7066] memfd_create("syzkaller", 0) = 3 [pid 7066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7066] 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"..., 2097152) = 2097152 [pid 7066] munmap(0x7f320ee61000, 2097152) = 0 [pid 7066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7066] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7066] close(3) = 0 [pid 7066] mkdir("./file1", 0777) = 0 [pid 7066] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7066] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7066] chdir("./file1") = 0 [pid 7066] ioctl(4, LOOP_CLR_FD) = 0 [pid 7066] close(4) = 0 [pid 7066] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7066] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7066] ftruncate(5, 33587199) = 0 [ 265.604321][ T7066] loop0: detected capacity change from 0 to 4096 [ 265.616218][ T7066] NILFS (loop0): invalid segment: Checksum error in segment payload [ 265.624849][ T7066] NILFS (loop0): trying rollback from an earlier position [ 265.636274][ T7066] NILFS (loop0): recovery complete [ 265.641930][ T7067] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7066] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7066] exit_group(0) = ? [pid 7066] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7066, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./989", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./989", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./989/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./989/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./989/binderfs") = 0 umount2("./989/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./989/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./989/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./989/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./989/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./989/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./989") = 0 mkdir("./990", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7068 ./strace-static-x86_64: Process 7068 attached [pid 7068] chdir("./990") = 0 [pid 7068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7068] setpgid(0, 0) = 0 [pid 7068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7068] write(3, "1000", 4) = 4 [pid 7068] close(3) = 0 [pid 7068] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7068] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7068] memfd_create("syzkaller", 0) = 3 [pid 7068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7068] 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"..., 2097152) = 2097152 [pid 7068] munmap(0x7f320ee61000, 2097152) = 0 [pid 7068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7068] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7068] close(3) = 0 [pid 7068] mkdir("./file1", 0777) = 0 [pid 7068] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7068] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7068] chdir("./file1") = 0 [pid 7068] ioctl(4, LOOP_CLR_FD) = 0 [pid 7068] close(4) = 0 [pid 7068] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7068] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7068] ftruncate(5, 33587199) = 0 [ 265.831126][ T7068] loop0: detected capacity change from 0 to 4096 [ 265.842567][ T7068] NILFS (loop0): invalid segment: Checksum error in segment payload [ 265.850586][ T7068] NILFS (loop0): trying rollback from an earlier position [ 265.861862][ T7068] NILFS (loop0): recovery complete [ 265.867448][ T7069] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7068] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7068] exit_group(0) = ? [pid 7068] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7068, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./990", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./990", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./990/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./990/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./990/binderfs") = 0 umount2("./990/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./990/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./990/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./990/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./990/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./990/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./990") = 0 mkdir("./991", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7070 ./strace-static-x86_64: Process 7070 attached [pid 7070] chdir("./991") = 0 [pid 7070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7070] setpgid(0, 0) = 0 [pid 7070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7070] write(3, "1000", 4) = 4 [pid 7070] close(3) = 0 [pid 7070] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7070] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7070] memfd_create("syzkaller", 0) = 3 [pid 7070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7070] 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"..., 2097152) = 2097152 [pid 7070] munmap(0x7f320ee61000, 2097152) = 0 [pid 7070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7070] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7070] close(3) = 0 [pid 7070] mkdir("./file1", 0777) = 0 [pid 7070] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7070] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7070] chdir("./file1") = 0 [pid 7070] ioctl(4, LOOP_CLR_FD) = 0 [pid 7070] close(4) = 0 [pid 7070] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7070] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7070] ftruncate(5, 33587199) = 0 [ 266.058360][ T7070] loop0: detected capacity change from 0 to 4096 [ 266.071594][ T7070] NILFS (loop0): invalid segment: Checksum error in segment payload [ 266.079653][ T7070] NILFS (loop0): trying rollback from an earlier position [ 266.090800][ T7070] NILFS (loop0): recovery complete [ 266.096405][ T7071] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7070] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7070] exit_group(0) = ? [pid 7070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7070, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./991", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./991", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./991/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./991/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./991/binderfs") = 0 umount2("./991/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./991/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./991/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./991/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./991/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./991/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./991") = 0 mkdir("./992", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7072 ./strace-static-x86_64: Process 7072 attached [pid 7072] chdir("./992") = 0 [pid 7072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7072] setpgid(0, 0) = 0 [pid 7072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7072] write(3, "1000", 4) = 4 [pid 7072] close(3) = 0 [pid 7072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7072] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7072] memfd_create("syzkaller", 0) = 3 [pid 7072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7072] 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"..., 2097152) = 2097152 [pid 7072] munmap(0x7f320ee61000, 2097152) = 0 [pid 7072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7072] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7072] close(3) = 0 [pid 7072] mkdir("./file1", 0777) = 0 [pid 7072] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7072] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7072] chdir("./file1") = 0 [pid 7072] ioctl(4, LOOP_CLR_FD) = 0 [pid 7072] close(4) = 0 [pid 7072] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7072] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7072] ftruncate(5, 33587199) = 0 [ 266.291340][ T7072] loop0: detected capacity change from 0 to 4096 [ 266.303301][ T7072] NILFS (loop0): invalid segment: Checksum error in segment payload [ 266.311456][ T7072] NILFS (loop0): trying rollback from an earlier position [ 266.322218][ T7072] NILFS (loop0): recovery complete [ 266.327992][ T7073] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7072] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7072] exit_group(0) = ? [pid 7072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7072, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./992", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./992", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./992/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./992/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./992/binderfs") = 0 umount2("./992/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./992/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./992/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./992/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./992/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./992/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./992") = 0 mkdir("./993", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7074 ./strace-static-x86_64: Process 7074 attached [pid 7074] chdir("./993") = 0 [pid 7074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7074] setpgid(0, 0) = 0 [pid 7074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7074] write(3, "1000", 4) = 4 [pid 7074] close(3) = 0 [pid 7074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7074] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7074] memfd_create("syzkaller", 0) = 3 [pid 7074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7074] 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"..., 2097152) = 2097152 [pid 7074] munmap(0x7f320ee61000, 2097152) = 0 [pid 7074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7074] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7074] close(3) = 0 [pid 7074] mkdir("./file1", 0777) = 0 [pid 7074] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7074] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7074] chdir("./file1") = 0 [pid 7074] ioctl(4, LOOP_CLR_FD) = 0 [pid 7074] close(4) = 0 [pid 7074] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7074] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7074] ftruncate(5, 33587199) = 0 [ 266.500209][ T7074] loop0: detected capacity change from 0 to 4096 [ 266.512452][ T7074] NILFS (loop0): invalid segment: Checksum error in segment payload [ 266.521140][ T7074] NILFS (loop0): trying rollback from an earlier position [ 266.532052][ T7074] NILFS (loop0): recovery complete [ 266.537815][ T7075] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7074] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7074] exit_group(0) = ? [pid 7074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7074, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./993", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./993", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./993/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./993/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./993/binderfs") = 0 umount2("./993/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./993/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./993/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./993/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./993/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./993/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./993") = 0 mkdir("./994", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7076 attached [pid 7076] chdir("./994") = 0 [pid 7076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7076] setpgid(0, 0) = 0 [pid 7076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7076] write(3, "1000", 4) = 4 [pid 7076] close(3) = 0 [pid 7076] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7076 [pid 7076] <... symlink resumed>) = 0 [pid 7076] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7076] memfd_create("syzkaller", 0) = 3 [pid 7076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7076] 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"..., 2097152) = 2097152 [pid 7076] munmap(0x7f320ee61000, 2097152) = 0 [pid 7076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7076] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7076] close(3) = 0 [pid 7076] mkdir("./file1", 0777) = 0 [pid 7076] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7076] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7076] chdir("./file1") = 0 [pid 7076] ioctl(4, LOOP_CLR_FD) = 0 [pid 7076] close(4) = 0 [pid 7076] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7076] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7076] ftruncate(5, 33587199) = 0 [ 266.726803][ T7076] loop0: detected capacity change from 0 to 4096 [ 266.738811][ T7076] NILFS (loop0): invalid segment: Checksum error in segment payload [ 266.747082][ T7076] NILFS (loop0): trying rollback from an earlier position [ 266.758491][ T7076] NILFS (loop0): recovery complete [ 266.764225][ T7077] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7076] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7076] exit_group(0) = ? [pid 7076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7076, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./994", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./994", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./994/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./994/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./994/binderfs") = 0 umount2("./994/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./994/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./994/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./994/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./994/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./994/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./994") = 0 mkdir("./995", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7078 ./strace-static-x86_64: Process 7078 attached [pid 7078] chdir("./995") = 0 [pid 7078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7078] setpgid(0, 0) = 0 [pid 7078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7078] write(3, "1000", 4) = 4 [pid 7078] close(3) = 0 [pid 7078] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7078] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7078] memfd_create("syzkaller", 0) = 3 [pid 7078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7078] 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"..., 2097152) = 2097152 [pid 7078] munmap(0x7f320ee61000, 2097152) = 0 [pid 7078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7078] close(3) = 0 [pid 7078] mkdir("./file1", 0777) = 0 [pid 7078] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7078] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7078] chdir("./file1") = 0 [pid 7078] ioctl(4, LOOP_CLR_FD) = 0 [pid 7078] close(4) = 0 [pid 7078] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7078] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7078] ftruncate(5, 33587199) = 0 [ 266.953071][ T7078] loop0: detected capacity change from 0 to 4096 [ 266.964893][ T7078] NILFS (loop0): invalid segment: Checksum error in segment payload [ 266.973081][ T7078] NILFS (loop0): trying rollback from an earlier position [ 266.985447][ T7078] NILFS (loop0): recovery complete [ 266.991272][ T7079] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7078] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7078] exit_group(0) = ? [pid 7078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7078, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./995", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./995", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./995/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./995/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./995/binderfs") = 0 umount2("./995/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./995/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./995/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./995/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./995/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./995/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./995") = 0 mkdir("./996", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7080 ./strace-static-x86_64: Process 7080 attached [pid 7080] chdir("./996") = 0 [pid 7080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7080] setpgid(0, 0) = 0 [pid 7080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7080] write(3, "1000", 4) = 4 [pid 7080] close(3) = 0 [pid 7080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7080] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7080] memfd_create("syzkaller", 0) = 3 [pid 7080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7080] 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"..., 2097152) = 2097152 [pid 7080] munmap(0x7f320ee61000, 2097152) = 0 [pid 7080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7080] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7080] close(3) = 0 [pid 7080] mkdir("./file1", 0777) = 0 [pid 7080] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7080] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7080] chdir("./file1") = 0 [pid 7080] ioctl(4, LOOP_CLR_FD) = 0 [pid 7080] close(4) = 0 [pid 7080] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7080] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7080] ftruncate(5, 33587199) = 0 [ 267.184553][ T7080] loop0: detected capacity change from 0 to 4096 [ 267.197222][ T7080] NILFS (loop0): invalid segment: Checksum error in segment payload [ 267.205480][ T7080] NILFS (loop0): trying rollback from an earlier position [ 267.216873][ T7080] NILFS (loop0): recovery complete [ 267.222714][ T7081] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7080] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7080] exit_group(0) = ? [pid 7080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7080, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./996", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./996", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./996/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./996/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./996/binderfs") = 0 umount2("./996/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./996/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./996/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./996/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./996/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./996/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./996") = 0 mkdir("./997", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7082 attached [pid 7082] chdir("./997") = 0 [pid 7082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7082] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7082 [pid 7082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7082] write(3, "1000", 4) = 4 [pid 7082] close(3) = 0 [pid 7082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7082] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7082] memfd_create("syzkaller", 0) = 3 [pid 7082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7082] 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"..., 2097152) = 2097152 [pid 7082] munmap(0x7f320ee61000, 2097152) = 0 [pid 7082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7082] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7082] close(3) = 0 [pid 7082] mkdir("./file1", 0777) = 0 [pid 7082] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7082] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7082] chdir("./file1") = 0 [pid 7082] ioctl(4, LOOP_CLR_FD) = 0 [pid 7082] close(4) = 0 [pid 7082] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7082] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7082] ftruncate(5, 33587199) = 0 [ 267.418932][ T7082] loop0: detected capacity change from 0 to 4096 [ 267.430686][ T7082] NILFS (loop0): invalid segment: Checksum error in segment payload [ 267.438704][ T7082] NILFS (loop0): trying rollback from an earlier position [ 267.450476][ T7082] NILFS (loop0): recovery complete [ 267.456193][ T7083] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7082] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7082] exit_group(0) = ? [pid 7082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7082, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./997", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./997", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./997/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./997/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./997/binderfs") = 0 umount2("./997/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./997/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./997/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./997/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./997/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./997/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./997") = 0 mkdir("./998", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7084 ./strace-static-x86_64: Process 7084 attached [pid 7084] chdir("./998") = 0 [pid 7084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7084] setpgid(0, 0) = 0 [pid 7084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7084] write(3, "1000", 4) = 4 [pid 7084] close(3) = 0 [pid 7084] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7084] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7084] memfd_create("syzkaller", 0) = 3 [pid 7084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7084] 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"..., 2097152) = 2097152 [pid 7084] munmap(0x7f320ee61000, 2097152) = 0 [pid 7084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7084] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7084] close(3) = 0 [pid 7084] mkdir("./file1", 0777) = 0 [pid 7084] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7084] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7084] chdir("./file1") = 0 [pid 7084] ioctl(4, LOOP_CLR_FD) = 0 [pid 7084] close(4) = 0 [pid 7084] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7084] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7084] ftruncate(5, 33587199) = 0 [ 267.634412][ T7084] loop0: detected capacity change from 0 to 4096 [ 267.646346][ T7084] NILFS (loop0): invalid segment: Checksum error in segment payload [ 267.654441][ T7084] NILFS (loop0): trying rollback from an earlier position [ 267.666215][ T7084] NILFS (loop0): recovery complete [ 267.672172][ T7085] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7084] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7084] exit_group(0) = ? [pid 7084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7084, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./998", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./998", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./998/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./998/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./998/binderfs") = 0 umount2("./998/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./998/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./998/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./998/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./998/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./998/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./998") = 0 mkdir("./999", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7086 ./strace-static-x86_64: Process 7086 attached [pid 7086] chdir("./999") = 0 [pid 7086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7086] setpgid(0, 0) = 0 [pid 7086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7086] write(3, "1000", 4) = 4 [pid 7086] close(3) = 0 [pid 7086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7086] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7086] memfd_create("syzkaller", 0) = 3 [pid 7086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7086] 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"..., 2097152) = 2097152 [pid 7086] munmap(0x7f320ee61000, 2097152) = 0 [pid 7086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7086] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7086] close(3) = 0 [pid 7086] mkdir("./file1", 0777) = 0 [pid 7086] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7086] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7086] chdir("./file1") = 0 [pid 7086] ioctl(4, LOOP_CLR_FD) = 0 [pid 7086] close(4) = 0 [pid 7086] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7086] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7086] ftruncate(5, 33587199) = 0 [ 267.871990][ T7086] loop0: detected capacity change from 0 to 4096 [ 267.884649][ T7086] NILFS (loop0): invalid segment: Checksum error in segment payload [ 267.892754][ T7086] NILFS (loop0): trying rollback from an earlier position [ 267.903729][ T7086] NILFS (loop0): recovery complete [ 267.909470][ T7087] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7086] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7086] exit_group(0) = ? [pid 7086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7086, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./999", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./999", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./999/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./999/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./999/binderfs") = 0 umount2("./999/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./999/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./999/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./999/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./999/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./999/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./999") = 0 mkdir("./1000", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7088 attached , child_tidptr=0x555555c06690) = 7088 [pid 7088] chdir("./1000") = 0 [pid 7088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7088] setpgid(0, 0) = 0 [pid 7088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7088] write(3, "1000", 4) = 4 [pid 7088] close(3) = 0 [pid 7088] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7088] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7088] memfd_create("syzkaller", 0) = 3 [pid 7088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7088] 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"..., 2097152) = 2097152 [pid 7088] munmap(0x7f320ee61000, 2097152) = 0 [pid 7088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7088] close(3) = 0 [pid 7088] mkdir("./file1", 0777) = 0 [pid 7088] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7088] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7088] chdir("./file1") = 0 [pid 7088] ioctl(4, LOOP_CLR_FD) = 0 [pid 7088] close(4) = 0 [pid 7088] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7088] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7088] ftruncate(5, 33587199) = 0 [ 268.112802][ T7088] loop0: detected capacity change from 0 to 4096 [ 268.125352][ T7088] NILFS (loop0): invalid segment: Checksum error in segment payload [ 268.133417][ T7088] NILFS (loop0): trying rollback from an earlier position [ 268.144788][ T7088] NILFS (loop0): recovery complete [ 268.150557][ T7089] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7088] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7088] exit_group(0) = ? [pid 7088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7088, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1000", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1000", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1000/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1000/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1000/binderfs") = 0 umount2("./1000/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1000/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1000/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1000/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1000/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1000/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1000") = 0 mkdir("./1001", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7090 attached , child_tidptr=0x555555c06690) = 7090 [pid 7090] chdir("./1001") = 0 [pid 7090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7090] setpgid(0, 0) = 0 [pid 7090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7090] write(3, "1000", 4) = 4 [pid 7090] close(3) = 0 [pid 7090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7090] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7090] memfd_create("syzkaller", 0) = 3 [pid 7090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7090] 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"..., 2097152) = 2097152 [pid 7090] munmap(0x7f320ee61000, 2097152) = 0 [pid 7090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7090] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7090] close(3) = 0 [pid 7090] mkdir("./file1", 0777) = 0 [pid 7090] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7090] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7090] chdir("./file1") = 0 [pid 7090] ioctl(4, LOOP_CLR_FD) = 0 [pid 7090] close(4) = 0 [pid 7090] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7090] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7090] ftruncate(5, 33587199) = 0 [ 268.335915][ T7090] loop0: detected capacity change from 0 to 4096 [ 268.347774][ T7090] NILFS (loop0): invalid segment: Checksum error in segment payload [ 268.355971][ T7090] NILFS (loop0): trying rollback from an earlier position [ 268.366626][ T7090] NILFS (loop0): recovery complete [ 268.372446][ T7091] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7090] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7090] exit_group(0) = ? [pid 7090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7090, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1001", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1001", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1001/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1001/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1001/binderfs") = 0 umount2("./1001/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1001/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1001/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1001/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1001/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1001/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1001") = 0 mkdir("./1002", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7092 attached , child_tidptr=0x555555c06690) = 7092 [pid 7092] chdir("./1002") = 0 [pid 7092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7092] setpgid(0, 0) = 0 [pid 7092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7092] write(3, "1000", 4) = 4 [pid 7092] close(3) = 0 [pid 7092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7092] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7092] memfd_create("syzkaller", 0) = 3 [pid 7092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7092] 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"..., 2097152) = 2097152 [pid 7092] munmap(0x7f320ee61000, 2097152) = 0 [pid 7092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7092] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7092] close(3) = 0 [pid 7092] mkdir("./file1", 0777) = 0 [pid 7092] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7092] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7092] chdir("./file1") = 0 [pid 7092] ioctl(4, LOOP_CLR_FD) = 0 [pid 7092] close(4) = 0 [pid 7092] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7092] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7092] ftruncate(5, 33587199) = 0 [ 268.557647][ T7092] loop0: detected capacity change from 0 to 4096 [ 268.570083][ T7092] NILFS (loop0): invalid segment: Checksum error in segment payload [ 268.578208][ T7092] NILFS (loop0): trying rollback from an earlier position [ 268.590414][ T7092] NILFS (loop0): recovery complete [ 268.596264][ T7093] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7092] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7092] exit_group(0) = ? [pid 7092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7092, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1002", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1002", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1002/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1002/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1002/binderfs") = 0 umount2("./1002/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1002/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1002/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1002/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1002/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1002/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1002") = 0 mkdir("./1003", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7094 attached , child_tidptr=0x555555c06690) = 7094 [pid 7094] chdir("./1003") = 0 [pid 7094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7094] setpgid(0, 0) = 0 [pid 7094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7094] write(3, "1000", 4) = 4 [pid 7094] close(3) = 0 [pid 7094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7094] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7094] memfd_create("syzkaller", 0) = 3 [pid 7094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7094] 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"..., 2097152) = 2097152 [pid 7094] munmap(0x7f320ee61000, 2097152) = 0 [pid 7094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7094] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7094] close(3) = 0 [pid 7094] mkdir("./file1", 0777) = 0 [pid 7094] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7094] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7094] chdir("./file1") = 0 [pid 7094] ioctl(4, LOOP_CLR_FD) = 0 [pid 7094] close(4) = 0 [pid 7094] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7094] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7094] ftruncate(5, 33587199) = 0 [ 268.788353][ T7094] loop0: detected capacity change from 0 to 4096 [ 268.800232][ T7094] NILFS (loop0): invalid segment: Checksum error in segment payload [ 268.808266][ T7094] NILFS (loop0): trying rollback from an earlier position [ 268.819081][ T7094] NILFS (loop0): recovery complete [ 268.824982][ T7095] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7094] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7094] exit_group(0) = ? [pid 7094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7094, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1003", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1003", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1003/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1003/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1003/binderfs") = 0 umount2("./1003/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1003/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1003/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1003/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1003/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1003/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1003") = 0 mkdir("./1004", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7096 ./strace-static-x86_64: Process 7096 attached [pid 7096] chdir("./1004") = 0 [pid 7096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7096] setpgid(0, 0) = 0 [pid 7096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7096] write(3, "1000", 4) = 4 [pid 7096] close(3) = 0 [pid 7096] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7096] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7096] memfd_create("syzkaller", 0) = 3 [pid 7096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7096] 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"..., 2097152) = 2097152 [pid 7096] munmap(0x7f320ee61000, 2097152) = 0 [pid 7096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7096] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7096] close(3) = 0 [pid 7096] mkdir("./file1", 0777) = 0 [pid 7096] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7096] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7096] chdir("./file1") = 0 [pid 7096] ioctl(4, LOOP_CLR_FD) = 0 [pid 7096] close(4) = 0 [pid 7096] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7096] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7096] ftruncate(5, 33587199) = 0 [ 269.015552][ T7096] loop0: detected capacity change from 0 to 4096 [ 269.028241][ T7096] NILFS (loop0): invalid segment: Checksum error in segment payload [ 269.036422][ T7096] NILFS (loop0): trying rollback from an earlier position [ 269.047602][ T7096] NILFS (loop0): recovery complete [ 269.053363][ T7097] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7096] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7096] exit_group(0) = ? [pid 7096] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7096, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1004", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1004", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1004/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1004/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1004/binderfs") = 0 umount2("./1004/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1004/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1004/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1004/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1004/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1004/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1004") = 0 mkdir("./1005", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7098 ./strace-static-x86_64: Process 7098 attached [pid 7098] chdir("./1005") = 0 [pid 7098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7098] setpgid(0, 0) = 0 [pid 7098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7098] write(3, "1000", 4) = 4 [pid 7098] close(3) = 0 [pid 7098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7098] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7098] memfd_create("syzkaller", 0) = 3 [pid 7098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7098] 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"..., 2097152) = 2097152 [pid 7098] munmap(0x7f320ee61000, 2097152) = 0 [pid 7098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7098] close(3) = 0 [pid 7098] mkdir("./file1", 0777) = 0 [pid 7098] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7098] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7098] chdir("./file1") = 0 [pid 7098] ioctl(4, LOOP_CLR_FD) = 0 [pid 7098] close(4) = 0 [pid 7098] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7098] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7098] ftruncate(5, 33587199) = 0 [ 269.247090][ T7098] loop0: detected capacity change from 0 to 4096 [ 269.259257][ T7098] NILFS (loop0): invalid segment: Checksum error in segment payload [ 269.267515][ T7098] NILFS (loop0): trying rollback from an earlier position [ 269.279252][ T7098] NILFS (loop0): recovery complete [ 269.284923][ T7099] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7098] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7098] exit_group(0) = ? [pid 7098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7098, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1005", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1005", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1005/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1005/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1005/binderfs") = 0 umount2("./1005/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1005/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1005/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1005/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1005/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1005/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1005") = 0 mkdir("./1006", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7100 ./strace-static-x86_64: Process 7100 attached [pid 7100] chdir("./1006") = 0 [pid 7100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7100] setpgid(0, 0) = 0 [pid 7100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7100] write(3, "1000", 4) = 4 [pid 7100] close(3) = 0 [pid 7100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7100] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7100] memfd_create("syzkaller", 0) = 3 [pid 7100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7100] 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"..., 2097152) = 2097152 [pid 7100] munmap(0x7f320ee61000, 2097152) = 0 [pid 7100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7100] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7100] close(3) = 0 [pid 7100] mkdir("./file1", 0777) = 0 [pid 7100] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7100] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7100] chdir("./file1") = 0 [pid 7100] ioctl(4, LOOP_CLR_FD) = 0 [pid 7100] close(4) = 0 [pid 7100] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7100] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7100] ftruncate(5, 33587199) = 0 [ 269.473221][ T7100] loop0: detected capacity change from 0 to 4096 [ 269.484798][ T7100] NILFS (loop0): invalid segment: Checksum error in segment payload [ 269.493231][ T7100] NILFS (loop0): trying rollback from an earlier position [ 269.504293][ T7100] NILFS (loop0): recovery complete [ 269.510034][ T7101] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7100] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7100] exit_group(0) = ? [pid 7100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7100, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1006", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1006", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1006/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1006/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1006/binderfs") = 0 umount2("./1006/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1006/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1006/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1006/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1006/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1006/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1006") = 0 mkdir("./1007", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7102 attached [pid 7102] chdir("./1007") = 0 [pid 7102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7102] setpgid(0, 0) = 0 [pid 7102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7102 [pid 7102] <... openat resumed>) = 3 [pid 7102] write(3, "1000", 4) = 4 [pid 7102] close(3) = 0 [pid 7102] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7102] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7102] memfd_create("syzkaller", 0) = 3 [pid 7102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7102] 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"..., 2097152) = 2097152 [pid 7102] munmap(0x7f320ee61000, 2097152) = 0 [pid 7102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7102] close(3) = 0 [pid 7102] mkdir("./file1", 0777) = 0 [pid 7102] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7102] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7102] chdir("./file1") = 0 [pid 7102] ioctl(4, LOOP_CLR_FD) = 0 [pid 7102] close(4) = 0 [pid 7102] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7102] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7102] ftruncate(5, 33587199) = 0 [ 269.698310][ T7102] loop0: detected capacity change from 0 to 4096 [ 269.709866][ T7102] NILFS (loop0): invalid segment: Checksum error in segment payload [ 269.717970][ T7102] NILFS (loop0): trying rollback from an earlier position [ 269.729480][ T7102] NILFS (loop0): recovery complete [ 269.735330][ T7103] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7102] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7102] exit_group(0) = ? [pid 7102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7102, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1007", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1007", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1007/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1007/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1007/binderfs") = 0 umount2("./1007/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1007/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1007/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1007/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1007/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1007/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1007") = 0 mkdir("./1008", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7104 attached [pid 7104] chdir("./1008") = 0 [pid 7104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7104] setpgid(0, 0) = 0 [pid 7104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7104 [pid 7104] write(3, "1000", 4) = 4 [pid 7104] close(3) = 0 [pid 7104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7104] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7104] memfd_create("syzkaller", 0) = 3 [pid 7104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7104] 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"..., 2097152) = 2097152 [pid 7104] munmap(0x7f320ee61000, 2097152) = 0 [pid 7104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7104] close(3) = 0 [pid 7104] mkdir("./file1", 0777) = 0 [pid 7104] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7104] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7104] chdir("./file1") = 0 [pid 7104] ioctl(4, LOOP_CLR_FD) = 0 [pid 7104] close(4) = 0 [pid 7104] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7104] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7104] ftruncate(5, 33587199) = 0 [ 269.926027][ T7104] loop0: detected capacity change from 0 to 4096 [ 269.938135][ T7104] NILFS (loop0): invalid segment: Checksum error in segment payload [ 269.946217][ T7104] NILFS (loop0): trying rollback from an earlier position [ 269.957066][ T7104] NILFS (loop0): recovery complete [ 269.962779][ T7105] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7104] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7104] exit_group(0) = ? [pid 7104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7104, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./1008", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1008", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1008/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1008/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1008/binderfs") = 0 umount2("./1008/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1008/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1008/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1008/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1008/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1008/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1008") = 0 mkdir("./1009", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7106 ./strace-static-x86_64: Process 7106 attached [pid 7106] chdir("./1009") = 0 [pid 7106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7106] setpgid(0, 0) = 0 [pid 7106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7106] write(3, "1000", 4) = 4 [pid 7106] close(3) = 0 [pid 7106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7106] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7106] memfd_create("syzkaller", 0) = 3 [pid 7106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7106] 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"..., 2097152) = 2097152 [pid 7106] munmap(0x7f320ee61000, 2097152) = 0 [pid 7106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7106] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7106] close(3) = 0 [pid 7106] mkdir("./file1", 0777) = 0 [pid 7106] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7106] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7106] chdir("./file1") = 0 [pid 7106] ioctl(4, LOOP_CLR_FD) = 0 [pid 7106] close(4) = 0 [pid 7106] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7106] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7106] ftruncate(5, 33587199) = 0 [ 270.134427][ T7106] loop0: detected capacity change from 0 to 4096 [ 270.146444][ T7106] NILFS (loop0): invalid segment: Checksum error in segment payload [ 270.154518][ T7106] NILFS (loop0): trying rollback from an earlier position [ 270.165931][ T7106] NILFS (loop0): recovery complete [ 270.171813][ T7107] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7106] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7106] exit_group(0) = ? [pid 7106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7106, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1009", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1009", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1009/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1009/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1009/binderfs") = 0 umount2("./1009/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1009/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1009/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1009/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1009/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1009/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1009") = 0 mkdir("./1010", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7108 ./strace-static-x86_64: Process 7108 attached [pid 7108] chdir("./1010") = 0 [pid 7108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7108] setpgid(0, 0) = 0 [pid 7108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7108] write(3, "1000", 4) = 4 [pid 7108] close(3) = 0 [pid 7108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7108] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7108] memfd_create("syzkaller", 0) = 3 [pid 7108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7108] 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"..., 2097152) = 2097152 [pid 7108] munmap(0x7f320ee61000, 2097152) = 0 [pid 7108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7108] close(3) = 0 [pid 7108] mkdir("./file1", 0777) = 0 [pid 7108] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7108] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7108] chdir("./file1") = 0 [pid 7108] ioctl(4, LOOP_CLR_FD) = 0 [pid 7108] close(4) = 0 [pid 7108] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7108] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7108] ftruncate(5, 33587199) = 0 [ 270.349656][ T7108] loop0: detected capacity change from 0 to 4096 [ 270.362866][ T7108] NILFS (loop0): invalid segment: Checksum error in segment payload [ 270.370920][ T7108] NILFS (loop0): trying rollback from an earlier position [ 270.382594][ T7108] NILFS (loop0): recovery complete [ 270.388330][ T7109] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7108] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7108] exit_group(0) = ? [pid 7108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7108, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1010", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1010", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1010/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1010/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1010/binderfs") = 0 umount2("./1010/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1010/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1010/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1010/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1010/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1010/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1010") = 0 mkdir("./1011", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7110 attached , child_tidptr=0x555555c06690) = 7110 [pid 7110] chdir("./1011") = 0 [pid 7110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7110] setpgid(0, 0) = 0 [pid 7110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7110] write(3, "1000", 4) = 4 [pid 7110] close(3) = 0 [pid 7110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7110] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7110] memfd_create("syzkaller", 0) = 3 [pid 7110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7110] 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"..., 2097152) = 2097152 [pid 7110] munmap(0x7f320ee61000, 2097152) = 0 [pid 7110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7110] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7110] close(3) = 0 [pid 7110] mkdir("./file1", 0777) = 0 [pid 7110] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7110] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7110] chdir("./file1") = 0 [pid 7110] ioctl(4, LOOP_CLR_FD) = 0 [pid 7110] close(4) = 0 [pid 7110] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7110] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7110] ftruncate(5, 33587199) = 0 [ 270.575708][ T7110] loop0: detected capacity change from 0 to 4096 [ 270.588066][ T7110] NILFS (loop0): invalid segment: Checksum error in segment payload [ 270.596155][ T7110] NILFS (loop0): trying rollback from an earlier position [ 270.607726][ T7110] NILFS (loop0): recovery complete [ 270.613507][ T7111] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7110] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7110] exit_group(0) = ? [pid 7110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7110, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1011", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1011", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1011/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1011/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1011/binderfs") = 0 umount2("./1011/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1011/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1011/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1011/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1011/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1011/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1011") = 0 mkdir("./1012", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7112 ./strace-static-x86_64: Process 7112 attached [pid 7112] chdir("./1012") = 0 [pid 7112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7112] setpgid(0, 0) = 0 [pid 7112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7112] write(3, "1000", 4) = 4 [pid 7112] close(3) = 0 [pid 7112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7112] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7112] memfd_create("syzkaller", 0) = 3 [pid 7112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7112] 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"..., 2097152) = 2097152 [pid 7112] munmap(0x7f320ee61000, 2097152) = 0 [pid 7112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7112] close(3) = 0 [pid 7112] mkdir("./file1", 0777) = 0 [pid 7112] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7112] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7112] chdir("./file1") = 0 [pid 7112] ioctl(4, LOOP_CLR_FD) = 0 [pid 7112] close(4) = 0 [pid 7112] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7112] ftruncate(5, 33587199) = 0 [ 270.807879][ T7112] loop0: detected capacity change from 0 to 4096 [ 270.820962][ T7112] NILFS (loop0): invalid segment: Checksum error in segment payload [ 270.829014][ T7112] NILFS (loop0): trying rollback from an earlier position [ 270.840831][ T7112] NILFS (loop0): recovery complete [ 270.846460][ T7113] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7112] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7112] exit_group(0) = ? [pid 7112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7112, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1012", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1012", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1012/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1012/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1012/binderfs") = 0 umount2("./1012/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1012/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1012/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1012/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1012/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1012/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1012") = 0 mkdir("./1013", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7114 ./strace-static-x86_64: Process 7114 attached [pid 7114] chdir("./1013") = 0 [pid 7114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7114] setpgid(0, 0) = 0 [pid 7114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7114] write(3, "1000", 4) = 4 [pid 7114] close(3) = 0 [pid 7114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7114] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7114] memfd_create("syzkaller", 0) = 3 [pid 7114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7114] 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"..., 2097152) = 2097152 [pid 7114] munmap(0x7f320ee61000, 2097152) = 0 [pid 7114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7114] close(3) = 0 [pid 7114] mkdir("./file1", 0777) = 0 [pid 7114] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7114] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7114] chdir("./file1") = 0 [pid 7114] ioctl(4, LOOP_CLR_FD) = 0 [pid 7114] close(4) = 0 [pid 7114] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7114] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7114] ftruncate(5, 33587199) = 0 [ 271.038293][ T7114] loop0: detected capacity change from 0 to 4096 [ 271.050722][ T7114] NILFS (loop0): invalid segment: Checksum error in segment payload [ 271.058725][ T7114] NILFS (loop0): trying rollback from an earlier position [ 271.070421][ T7114] NILFS (loop0): recovery complete [ 271.076142][ T7115] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7114] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7114] exit_group(0) = ? [pid 7114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7114, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1013", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1013", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1013/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1013/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1013/binderfs") = 0 umount2("./1013/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1013/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1013/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1013/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1013/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1013/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1013") = 0 mkdir("./1014", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7116 ./strace-static-x86_64: Process 7116 attached [pid 7116] chdir("./1014") = 0 [pid 7116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7116] setpgid(0, 0) = 0 [pid 7116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7116] write(3, "1000", 4) = 4 [pid 7116] close(3) = 0 [pid 7116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7116] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7116] memfd_create("syzkaller", 0) = 3 [pid 7116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7116] 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"..., 2097152) = 2097152 [pid 7116] munmap(0x7f320ee61000, 2097152) = 0 [pid 7116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7116] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7116] close(3) = 0 [pid 7116] mkdir("./file1", 0777) = 0 [pid 7116] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7116] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7116] chdir("./file1") = 0 [pid 7116] ioctl(4, LOOP_CLR_FD) = 0 [pid 7116] close(4) = 0 [pid 7116] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7116] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7116] ftruncate(5, 33587199) = 0 [ 271.264124][ T7116] loop0: detected capacity change from 0 to 4096 [ 271.276295][ T7116] NILFS (loop0): invalid segment: Checksum error in segment payload [ 271.284685][ T7116] NILFS (loop0): trying rollback from an earlier position [ 271.296214][ T7116] NILFS (loop0): recovery complete [ 271.301903][ T7117] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7116] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7116] exit_group(0) = ? [pid 7116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7116, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1014", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1014", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1014/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1014/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1014/binderfs") = 0 umount2("./1014/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1014/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1014/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1014/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1014/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1014/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1014") = 0 mkdir("./1015", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7118 attached , child_tidptr=0x555555c06690) = 7118 [pid 7118] chdir("./1015") = 0 [pid 7118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7118] setpgid(0, 0) = 0 [pid 7118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7118] write(3, "1000", 4) = 4 [pid 7118] close(3) = 0 [pid 7118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7118] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7118] memfd_create("syzkaller", 0) = 3 [pid 7118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7118] 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"..., 2097152) = 2097152 [pid 7118] munmap(0x7f320ee61000, 2097152) = 0 [pid 7118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7118] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7118] close(3) = 0 [pid 7118] mkdir("./file1", 0777) = 0 [pid 7118] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7118] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7118] chdir("./file1") = 0 [pid 7118] ioctl(4, LOOP_CLR_FD) = 0 [pid 7118] close(4) = 0 [pid 7118] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7118] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7118] ftruncate(5, 33587199) = 0 [ 271.492619][ T7118] loop0: detected capacity change from 0 to 4096 [ 271.503940][ T7118] NILFS (loop0): invalid segment: Checksum error in segment payload [ 271.512148][ T7118] NILFS (loop0): trying rollback from an earlier position [ 271.523592][ T7118] NILFS (loop0): recovery complete [ 271.529339][ T7119] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7118] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7118] exit_group(0) = ? [pid 7118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7118, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1015", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1015", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1015/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1015/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1015/binderfs") = 0 umount2("./1015/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1015/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1015/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1015/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1015/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1015/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1015") = 0 mkdir("./1016", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7120 attached , child_tidptr=0x555555c06690) = 7120 [pid 7120] chdir("./1016") = 0 [pid 7120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7120] setpgid(0, 0) = 0 [pid 7120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7120] write(3, "1000", 4) = 4 [pid 7120] close(3) = 0 [pid 7120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7120] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7120] memfd_create("syzkaller", 0) = 3 [pid 7120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7120] 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"..., 2097152) = 2097152 [pid 7120] munmap(0x7f320ee61000, 2097152) = 0 [pid 7120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7120] close(3) = 0 [pid 7120] mkdir("./file1", 0777) = 0 [pid 7120] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7120] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7120] chdir("./file1") = 0 [pid 7120] ioctl(4, LOOP_CLR_FD) = 0 [pid 7120] close(4) = 0 [pid 7120] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7120] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7120] ftruncate(5, 33587199) = 0 [ 271.712781][ T7120] loop0: detected capacity change from 0 to 4096 [ 271.724444][ T7120] NILFS (loop0): invalid segment: Checksum error in segment payload [ 271.732549][ T7120] NILFS (loop0): trying rollback from an earlier position [ 271.743488][ T7120] NILFS (loop0): recovery complete [ 271.749071][ T7121] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7120] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7120] exit_group(0) = ? [pid 7120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7120, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1016", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1016", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1016/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1016/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1016/binderfs") = 0 umount2("./1016/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1016/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1016/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1016/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1016/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1016/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1016") = 0 mkdir("./1017", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7122 attached [pid 7122] chdir("./1017") = 0 [pid 7122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7122] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7122 [pid 7122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7122] write(3, "1000", 4) = 4 [pid 7122] close(3) = 0 [pid 7122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7122] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7122] memfd_create("syzkaller", 0) = 3 [pid 7122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7122] 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"..., 2097152) = 2097152 [pid 7122] munmap(0x7f320ee61000, 2097152) = 0 [pid 7122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7122] close(3) = 0 [pid 7122] mkdir("./file1", 0777) = 0 [pid 7122] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7122] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7122] chdir("./file1") = 0 [pid 7122] ioctl(4, LOOP_CLR_FD) = 0 [pid 7122] close(4) = 0 [pid 7122] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7122] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7122] ftruncate(5, 33587199) = 0 [ 271.936672][ T7122] loop0: detected capacity change from 0 to 4096 [ 271.949122][ T7122] NILFS (loop0): invalid segment: Checksum error in segment payload [ 271.957387][ T7122] NILFS (loop0): trying rollback from an earlier position [ 271.968759][ T7122] NILFS (loop0): recovery complete [ 271.974513][ T7123] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7122] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7122] exit_group(0) = ? [pid 7122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7122, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1017", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1017", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1017/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1017/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1017/binderfs") = 0 umount2("./1017/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1017/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1017/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1017/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1017/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1017/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1017") = 0 mkdir("./1018", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7124 attached , child_tidptr=0x555555c06690) = 7124 [pid 7124] chdir("./1018") = 0 [pid 7124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7124] setpgid(0, 0) = 0 [pid 7124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7124] write(3, "1000", 4) = 4 [pid 7124] close(3) = 0 [pid 7124] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7124] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7124] memfd_create("syzkaller", 0) = 3 [pid 7124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7124] 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"..., 2097152) = 2097152 [pid 7124] munmap(0x7f320ee61000, 2097152) = 0 [pid 7124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7124] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7124] close(3) = 0 [pid 7124] mkdir("./file1", 0777) = 0 [pid 7124] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7124] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7124] chdir("./file1") = 0 [pid 7124] ioctl(4, LOOP_CLR_FD) = 0 [pid 7124] close(4) = 0 [pid 7124] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7124] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7124] ftruncate(5, 33587199) = 0 [ 272.159532][ T7124] loop0: detected capacity change from 0 to 4096 [ 272.172679][ T7124] NILFS (loop0): invalid segment: Checksum error in segment payload [ 272.180858][ T7124] NILFS (loop0): trying rollback from an earlier position [ 272.192592][ T7124] NILFS (loop0): recovery complete [ 272.198205][ T7125] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7124] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7124] exit_group(0) = ? [pid 7124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7124, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1018", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1018", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1018/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1018/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1018/binderfs") = 0 umount2("./1018/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1018/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1018/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1018/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1018/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1018/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1018") = 0 mkdir("./1019", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7126 ./strace-static-x86_64: Process 7126 attached [pid 7126] chdir("./1019") = 0 [pid 7126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7126] setpgid(0, 0) = 0 [pid 7126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7126] write(3, "1000", 4) = 4 [pid 7126] close(3) = 0 [pid 7126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7126] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7126] memfd_create("syzkaller", 0) = 3 [pid 7126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7126] 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"..., 2097152) = 2097152 [pid 7126] munmap(0x7f320ee61000, 2097152) = 0 [pid 7126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7126] close(3) = 0 [pid 7126] mkdir("./file1", 0777) = 0 [pid 7126] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7126] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7126] chdir("./file1") = 0 [pid 7126] ioctl(4, LOOP_CLR_FD) = 0 [pid 7126] close(4) = 0 [pid 7126] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7126] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7126] ftruncate(5, 33587199) = 0 [ 272.388583][ T7126] loop0: detected capacity change from 0 to 4096 [ 272.400747][ T7126] NILFS (loop0): invalid segment: Checksum error in segment payload [ 272.408811][ T7126] NILFS (loop0): trying rollback from an earlier position [ 272.420420][ T7126] NILFS (loop0): recovery complete [ 272.426293][ T7127] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7126] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7126] exit_group(0) = ? [pid 7126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7126, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1019", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1019", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1019/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1019/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1019/binderfs") = 0 umount2("./1019/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1019/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1019/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1019/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1019/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1019/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1019") = 0 mkdir("./1020", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7128 attached , child_tidptr=0x555555c06690) = 7128 [pid 7128] chdir("./1020") = 0 [pid 7128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7128] setpgid(0, 0) = 0 [pid 7128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7128] write(3, "1000", 4) = 4 [pid 7128] close(3) = 0 [pid 7128] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7128] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7128] memfd_create("syzkaller", 0) = 3 [pid 7128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7128] 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"..., 2097152) = 2097152 [pid 7128] munmap(0x7f320ee61000, 2097152) = 0 [pid 7128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7128] close(3) = 0 [pid 7128] mkdir("./file1", 0777) = 0 [pid 7128] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7128] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7128] chdir("./file1") = 0 [pid 7128] ioctl(4, LOOP_CLR_FD) = 0 [pid 7128] close(4) = 0 [pid 7128] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7128] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7128] ftruncate(5, 33587199) = 0 [ 272.617693][ T7128] loop0: detected capacity change from 0 to 4096 [ 272.631042][ T7128] NILFS (loop0): invalid segment: Checksum error in segment payload [ 272.639090][ T7128] NILFS (loop0): trying rollback from an earlier position [ 272.650389][ T7128] NILFS (loop0): recovery complete [ 272.656103][ T7129] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7128] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7128] exit_group(0) = ? [pid 7128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7128, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1020", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1020", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1020/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1020/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1020/binderfs") = 0 umount2("./1020/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1020/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1020/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1020/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1020/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1020/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1020") = 0 mkdir("./1021", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7130 ./strace-static-x86_64: Process 7130 attached [pid 7130] chdir("./1021") = 0 [pid 7130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7130] setpgid(0, 0) = 0 [pid 7130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7130] write(3, "1000", 4) = 4 [pid 7130] close(3) = 0 [pid 7130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7130] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7130] memfd_create("syzkaller", 0) = 3 [pid 7130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7130] 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"..., 2097152) = 2097152 [pid 7130] munmap(0x7f320ee61000, 2097152) = 0 [pid 7130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7130] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7130] close(3) = 0 [pid 7130] mkdir("./file1", 0777) = 0 [pid 7130] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7130] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7130] chdir("./file1") = 0 [pid 7130] ioctl(4, LOOP_CLR_FD) = 0 [pid 7130] close(4) = 0 [pid 7130] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7130] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7130] ftruncate(5, 33587199) = 0 [ 272.841476][ T7130] loop0: detected capacity change from 0 to 4096 [ 272.853642][ T7130] NILFS (loop0): invalid segment: Checksum error in segment payload [ 272.861864][ T7130] NILFS (loop0): trying rollback from an earlier position [ 272.873797][ T7130] NILFS (loop0): recovery complete [ 272.879642][ T7131] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7130] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7130] exit_group(0) = ? [pid 7130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7130, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1021", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1021", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1021/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1021/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1021/binderfs") = 0 umount2("./1021/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1021/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1021/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1021/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1021/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1021/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1021") = 0 mkdir("./1022", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7132 attached [pid 7132] chdir("./1022") = 0 [pid 7132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7132] setpgid(0, 0) = 0 [pid 7132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7132 [pid 7132] <... openat resumed>) = 3 [pid 7132] write(3, "1000", 4) = 4 [pid 7132] close(3) = 0 [pid 7132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7132] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7132] memfd_create("syzkaller", 0) = 3 [pid 7132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7132] 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"..., 2097152) = 2097152 [pid 7132] munmap(0x7f320ee61000, 2097152) = 0 [pid 7132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7132] close(3) = 0 [pid 7132] mkdir("./file1", 0777) = 0 [pid 7132] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7132] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7132] chdir("./file1") = 0 [pid 7132] ioctl(4, LOOP_CLR_FD) = 0 [pid 7132] close(4) = 0 [pid 7132] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7132] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7132] ftruncate(5, 33587199) = 0 [ 273.065218][ T7132] loop0: detected capacity change from 0 to 4096 [ 273.077910][ T7132] NILFS (loop0): invalid segment: Checksum error in segment payload [ 273.086166][ T7132] NILFS (loop0): trying rollback from an earlier position [ 273.097367][ T7132] NILFS (loop0): recovery complete [ 273.103270][ T7133] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7132] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7132] exit_group(0) = ? [pid 7132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7132, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1022", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1022", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1022/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1022/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1022/binderfs") = 0 umount2("./1022/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1022/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1022/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1022/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1022/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1022/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1022") = 0 mkdir("./1023", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7134 ./strace-static-x86_64: Process 7134 attached [pid 7134] chdir("./1023") = 0 [pid 7134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7134] setpgid(0, 0) = 0 [pid 7134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7134] write(3, "1000", 4) = 4 [pid 7134] close(3) = 0 [pid 7134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7134] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7134] memfd_create("syzkaller", 0) = 3 [pid 7134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7134] 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"..., 2097152) = 2097152 [pid 7134] munmap(0x7f320ee61000, 2097152) = 0 [pid 7134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7134] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7134] close(3) = 0 [pid 7134] mkdir("./file1", 0777) = 0 [pid 7134] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7134] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7134] chdir("./file1") = 0 [pid 7134] ioctl(4, LOOP_CLR_FD) = 0 [pid 7134] close(4) = 0 [pid 7134] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7134] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7134] ftruncate(5, 33587199) = 0 [ 273.296708][ T7134] loop0: detected capacity change from 0 to 4096 [ 273.309482][ T7134] NILFS (loop0): invalid segment: Checksum error in segment payload [ 273.317584][ T7134] NILFS (loop0): trying rollback from an earlier position [ 273.329044][ T7134] NILFS (loop0): recovery complete [ 273.334923][ T7135] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7134] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7134] exit_group(0) = ? [pid 7134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7134, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1023", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1023", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1023/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1023/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1023/binderfs") = 0 umount2("./1023/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1023/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1023/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1023/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1023/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1023/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1023") = 0 mkdir("./1024", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7136 ./strace-static-x86_64: Process 7136 attached [pid 7136] chdir("./1024") = 0 [pid 7136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7136] setpgid(0, 0) = 0 [pid 7136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7136] write(3, "1000", 4) = 4 [pid 7136] close(3) = 0 [pid 7136] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7136] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7136] memfd_create("syzkaller", 0) = 3 [pid 7136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7136] 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"..., 2097152) = 2097152 [pid 7136] munmap(0x7f320ee61000, 2097152) = 0 [pid 7136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7136] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7136] close(3) = 0 [pid 7136] mkdir("./file1", 0777) = 0 [pid 7136] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7136] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7136] chdir("./file1") = 0 [pid 7136] ioctl(4, LOOP_CLR_FD) = 0 [pid 7136] close(4) = 0 [pid 7136] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7136] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7136] ftruncate(5, 33587199) = 0 [ 273.525816][ T7136] loop0: detected capacity change from 0 to 4096 [ 273.538226][ T7136] NILFS (loop0): invalid segment: Checksum error in segment payload [ 273.546524][ T7136] NILFS (loop0): trying rollback from an earlier position [ 273.557553][ T7136] NILFS (loop0): recovery complete [ 273.563190][ T7137] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7136] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7136] exit_group(0) = ? [pid 7136] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7136, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1024", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1024", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1024/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1024/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1024/binderfs") = 0 umount2("./1024/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1024/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1024/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1024/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1024/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1024/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1024") = 0 mkdir("./1025", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7138 ./strace-static-x86_64: Process 7138 attached [pid 7138] chdir("./1025") = 0 [pid 7138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7138] setpgid(0, 0) = 0 [pid 7138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7138] write(3, "1000", 4) = 4 [pid 7138] close(3) = 0 [pid 7138] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7138] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7138] memfd_create("syzkaller", 0) = 3 [pid 7138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7138] 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"..., 2097152) = 2097152 [pid 7138] munmap(0x7f320ee61000, 2097152) = 0 [pid 7138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7138] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7138] close(3) = 0 [pid 7138] mkdir("./file1", 0777) = 0 [pid 7138] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7138] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7138] chdir("./file1") = 0 [pid 7138] ioctl(4, LOOP_CLR_FD) = 0 [pid 7138] close(4) = 0 [pid 7138] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7138] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7138] ftruncate(5, 33587199) = 0 [ 273.742314][ T7138] loop0: detected capacity change from 0 to 4096 [ 273.755422][ T7138] NILFS (loop0): invalid segment: Checksum error in segment payload [ 273.763538][ T7138] NILFS (loop0): trying rollback from an earlier position [ 273.775741][ T7138] NILFS (loop0): recovery complete [ 273.781515][ T7139] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7138] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7138] exit_group(0) = ? [pid 7138] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7138, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./1025", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1025", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1025/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1025/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1025/binderfs") = 0 umount2("./1025/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1025/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1025/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1025/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1025/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1025/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1025") = 0 mkdir("./1026", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7140 attached , child_tidptr=0x555555c06690) = 7140 [pid 7140] chdir("./1026") = 0 [pid 7140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7140] setpgid(0, 0) = 0 [pid 7140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7140] write(3, "1000", 4) = 4 [pid 7140] close(3) = 0 [pid 7140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7140] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7140] memfd_create("syzkaller", 0) = 3 [pid 7140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7140] 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"..., 2097152) = 2097152 [pid 7140] munmap(0x7f320ee61000, 2097152) = 0 [pid 7140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7140] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7140] close(3) = 0 [pid 7140] mkdir("./file1", 0777) = 0 [pid 7140] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7140] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7140] chdir("./file1") = 0 [pid 7140] ioctl(4, LOOP_CLR_FD) = 0 [pid 7140] close(4) = 0 [pid 7140] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7140] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7140] ftruncate(5, 33587199) = 0 [ 273.967768][ T7140] loop0: detected capacity change from 0 to 4096 [ 273.980658][ T7140] NILFS (loop0): invalid segment: Checksum error in segment payload [ 273.988695][ T7140] NILFS (loop0): trying rollback from an earlier position [ 274.000423][ T7140] NILFS (loop0): recovery complete [ 274.006283][ T7141] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7140] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7140] exit_group(0) = ? [pid 7140] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7140, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1026", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1026", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1026/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1026/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1026/binderfs") = 0 umount2("./1026/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1026/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1026/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1026/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1026/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1026/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1026") = 0 mkdir("./1027", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7142 attached [pid 7142] chdir("./1027") = 0 [pid 7142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7142] setpgid(0, 0) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7142 [pid 7142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7142] write(3, "1000", 4) = 4 [pid 7142] close(3) = 0 [pid 7142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7142] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7142] memfd_create("syzkaller", 0) = 3 [pid 7142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7142] 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"..., 2097152) = 2097152 [pid 7142] munmap(0x7f320ee61000, 2097152) = 0 [pid 7142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7142] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7142] close(3) = 0 [pid 7142] mkdir("./file1", 0777) = 0 [pid 7142] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7142] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7142] chdir("./file1") = 0 [pid 7142] ioctl(4, LOOP_CLR_FD) = 0 [pid 7142] close(4) = 0 [pid 7142] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7142] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7142] ftruncate(5, 33587199) = 0 [ 274.196780][ T7142] loop0: detected capacity change from 0 to 4096 [ 274.209357][ T7142] NILFS (loop0): invalid segment: Checksum error in segment payload [ 274.217712][ T7142] NILFS (loop0): trying rollback from an earlier position [ 274.229436][ T7142] NILFS (loop0): recovery complete [ 274.235277][ T7143] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7142] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7142] exit_group(0) = ? [pid 7142] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7142, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1027", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1027", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1027/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1027/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1027/binderfs") = 0 umount2("./1027/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1027/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1027/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1027/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1027/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1027/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1027") = 0 mkdir("./1028", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7144 attached , child_tidptr=0x555555c06690) = 7144 [pid 7144] chdir("./1028") = 0 [pid 7144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7144] setpgid(0, 0) = 0 [pid 7144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7144] write(3, "1000", 4) = 4 [pid 7144] close(3) = 0 [pid 7144] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7144] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7144] memfd_create("syzkaller", 0) = 3 [pid 7144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7144] 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"..., 2097152) = 2097152 [pid 7144] munmap(0x7f320ee61000, 2097152) = 0 [pid 7144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7144] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7144] close(3) = 0 [pid 7144] mkdir("./file1", 0777) = 0 [pid 7144] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7144] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7144] chdir("./file1") = 0 [pid 7144] ioctl(4, LOOP_CLR_FD) = 0 [pid 7144] close(4) = 0 [pid 7144] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7144] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7144] ftruncate(5, 33587199) = 0 [ 274.427077][ T7144] loop0: detected capacity change from 0 to 4096 [ 274.438957][ T7144] NILFS (loop0): invalid segment: Checksum error in segment payload [ 274.447021][ T7144] NILFS (loop0): trying rollback from an earlier position [ 274.458731][ T7144] NILFS (loop0): recovery complete [ 274.464582][ T7145] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7144] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7144] exit_group(0) = ? [pid 7144] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7144, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- umount2("./1028", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1028", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1028/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1028/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1028/binderfs") = 0 umount2("./1028/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1028/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1028/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1028/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1028/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1028/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1028") = 0 mkdir("./1029", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7146 ./strace-static-x86_64: Process 7146 attached [pid 7146] chdir("./1029") = 0 [pid 7146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7146] setpgid(0, 0) = 0 [pid 7146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7146] write(3, "1000", 4) = 4 [pid 7146] close(3) = 0 [pid 7146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7146] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7146] memfd_create("syzkaller", 0) = 3 [pid 7146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7146] 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"..., 2097152) = 2097152 [pid 7146] munmap(0x7f320ee61000, 2097152) = 0 [pid 7146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7146] close(3) = 0 [pid 7146] mkdir("./file1", 0777) = 0 [pid 7146] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7146] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7146] chdir("./file1") = 0 [pid 7146] ioctl(4, LOOP_CLR_FD) = 0 [pid 7146] close(4) = 0 [pid 7146] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7146] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7146] ftruncate(5, 33587199) = 0 [ 274.657591][ T7146] loop0: detected capacity change from 0 to 4096 [ 274.670125][ T7146] NILFS (loop0): invalid segment: Checksum error in segment payload [ 274.678572][ T7146] NILFS (loop0): trying rollback from an earlier position [ 274.689926][ T7146] NILFS (loop0): recovery complete [ 274.695727][ T7147] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7146] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7146] exit_group(0) = ? [pid 7146] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7146, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1029", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1029", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1029/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1029/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1029/binderfs") = 0 umount2("./1029/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1029/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1029/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1029/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1029/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1029/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1029") = 0 mkdir("./1030", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7148 attached [pid 7148] chdir("./1030") = 0 [pid 7148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7148] setpgid(0, 0) = 0 [pid 7148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7148 [pid 7148] write(3, "1000", 4) = 4 [pid 7148] close(3) = 0 [pid 7148] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7148] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7148] memfd_create("syzkaller", 0) = 3 [pid 7148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7148] 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"..., 2097152) = 2097152 [pid 7148] munmap(0x7f320ee61000, 2097152) = 0 [pid 7148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7148] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7148] close(3) = 0 [pid 7148] mkdir("./file1", 0777) = 0 [pid 7148] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7148] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7148] chdir("./file1") = 0 [pid 7148] ioctl(4, LOOP_CLR_FD) = 0 [pid 7148] close(4) = 0 [pid 7148] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7148] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7148] ftruncate(5, 33587199) = 0 [ 274.878737][ T7148] loop0: detected capacity change from 0 to 4096 [ 274.890888][ T7148] NILFS (loop0): invalid segment: Checksum error in segment payload [ 274.898903][ T7148] NILFS (loop0): trying rollback from an earlier position [ 274.910193][ T7148] NILFS (loop0): recovery complete [ 274.915839][ T7149] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7148] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7148] exit_group(0) = ? [pid 7148] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7148, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1030", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1030", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1030/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1030/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1030/binderfs") = 0 umount2("./1030/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1030/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1030/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1030/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1030/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1030/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1030") = 0 mkdir("./1031", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7150 ./strace-static-x86_64: Process 7150 attached [pid 7150] chdir("./1031") = 0 [pid 7150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7150] setpgid(0, 0) = 0 [pid 7150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7150] write(3, "1000", 4) = 4 [pid 7150] close(3) = 0 [pid 7150] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7150] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7150] memfd_create("syzkaller", 0) = 3 [pid 7150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7150] 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"..., 2097152) = 2097152 [pid 7150] munmap(0x7f320ee61000, 2097152) = 0 [pid 7150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7150] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7150] close(3) = 0 [pid 7150] mkdir("./file1", 0777) = 0 [pid 7150] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7150] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7150] chdir("./file1") = 0 [pid 7150] ioctl(4, LOOP_CLR_FD) = 0 [pid 7150] close(4) = 0 [pid 7150] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7150] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7150] ftruncate(5, 33587199) = 0 [ 275.104454][ T7150] loop0: detected capacity change from 0 to 4096 [ 275.117613][ T7150] NILFS (loop0): invalid segment: Checksum error in segment payload [ 275.125769][ T7150] NILFS (loop0): trying rollback from an earlier position [ 275.137389][ T7150] NILFS (loop0): recovery complete [ 275.143203][ T7151] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7150] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7150] exit_group(0) = ? [pid 7150] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7150, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1031", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1031", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1031/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1031/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1031/binderfs") = 0 umount2("./1031/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1031/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1031/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1031/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1031/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1031/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1031") = 0 mkdir("./1032", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7152 ./strace-static-x86_64: Process 7152 attached [pid 7152] chdir("./1032") = 0 [pid 7152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7152] setpgid(0, 0) = 0 [pid 7152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7152] write(3, "1000", 4) = 4 [pid 7152] close(3) = 0 [pid 7152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7152] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7152] memfd_create("syzkaller", 0) = 3 [pid 7152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7152] 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"..., 2097152) = 2097152 [pid 7152] munmap(0x7f320ee61000, 2097152) = 0 [pid 7152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7152] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7152] close(3) = 0 [pid 7152] mkdir("./file1", 0777) = 0 [pid 7152] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7152] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7152] chdir("./file1") = 0 [pid 7152] ioctl(4, LOOP_CLR_FD) = 0 [pid 7152] close(4) = 0 [pid 7152] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7152] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7152] ftruncate(5, 33587199) = 0 [ 275.320335][ T7152] loop0: detected capacity change from 0 to 4096 [ 275.333285][ T7152] NILFS (loop0): invalid segment: Checksum error in segment payload [ 275.341314][ T7152] NILFS (loop0): trying rollback from an earlier position [ 275.352372][ T7152] NILFS (loop0): recovery complete [ 275.358153][ T7153] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7152] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7152] exit_group(0) = ? [pid 7152] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7152, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1032", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1032", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1032/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1032/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1032/binderfs") = 0 umount2("./1032/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1032/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1032/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1032/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1032/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1032/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1032") = 0 mkdir("./1033", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7154 attached [pid 7154] chdir("./1033") = 0 [pid 7154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7154] setpgid(0, 0) = 0 [pid 7154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7154] write(3, "1000", 4) = 4 [pid 7154] close(3) = 0 [pid 7154] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7154 [pid 7154] <... symlink resumed>) = 0 [pid 7154] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7154] memfd_create("syzkaller", 0) = 3 [pid 7154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7154] 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"..., 2097152) = 2097152 [pid 7154] munmap(0x7f320ee61000, 2097152) = 0 [pid 7154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7154] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7154] close(3) = 0 [pid 7154] mkdir("./file1", 0777) = 0 [pid 7154] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7154] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7154] chdir("./file1") = 0 [pid 7154] ioctl(4, LOOP_CLR_FD) = 0 [pid 7154] close(4) = 0 [pid 7154] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7154] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7154] ftruncate(5, 33587199) = 0 [ 275.545365][ T7154] loop0: detected capacity change from 0 to 4096 [ 275.557816][ T7154] NILFS (loop0): invalid segment: Checksum error in segment payload [ 275.566147][ T7154] NILFS (loop0): trying rollback from an earlier position [ 275.577742][ T7154] NILFS (loop0): recovery complete [ 275.583472][ T7155] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7154] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7154] exit_group(0) = ? [pid 7154] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7154, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1033", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1033", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1033/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1033/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1033/binderfs") = 0 umount2("./1033/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1033/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1033/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1033/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1033/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1033/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1033") = 0 mkdir("./1034", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7156 ./strace-static-x86_64: Process 7156 attached [pid 7156] chdir("./1034") = 0 [pid 7156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7156] setpgid(0, 0) = 0 [pid 7156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7156] write(3, "1000", 4) = 4 [pid 7156] close(3) = 0 [pid 7156] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7156] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7156] memfd_create("syzkaller", 0) = 3 [pid 7156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7156] 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"..., 2097152) = 2097152 [pid 7156] munmap(0x7f320ee61000, 2097152) = 0 [pid 7156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7156] close(3) = 0 [pid 7156] mkdir("./file1", 0777) = 0 [pid 7156] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7156] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7156] chdir("./file1") = 0 [pid 7156] ioctl(4, LOOP_CLR_FD) = 0 [pid 7156] close(4) = 0 [pid 7156] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7156] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7156] ftruncate(5, 33587199) = 0 [ 275.777439][ T7156] loop0: detected capacity change from 0 to 4096 [ 275.789163][ T7156] NILFS (loop0): invalid segment: Checksum error in segment payload [ 275.797208][ T7156] NILFS (loop0): trying rollback from an earlier position [ 275.808677][ T7156] NILFS (loop0): recovery complete [ 275.814384][ T7157] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7156] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7156] exit_group(0) = ? [pid 7156] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7156, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1034", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1034", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1034/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1034/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1034/binderfs") = 0 umount2("./1034/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1034/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1034/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1034/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1034/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1034/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1034") = 0 mkdir("./1035", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7158 attached , child_tidptr=0x555555c06690) = 7158 [pid 7158] chdir("./1035") = 0 [pid 7158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7158] setpgid(0, 0) = 0 [pid 7158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7158] write(3, "1000", 4) = 4 [pid 7158] close(3) = 0 [pid 7158] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7158] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7158] memfd_create("syzkaller", 0) = 3 [pid 7158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7158] 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"..., 2097152) = 2097152 [pid 7158] munmap(0x7f320ee61000, 2097152) = 0 [pid 7158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7158] close(3) = 0 [pid 7158] mkdir("./file1", 0777) = 0 [pid 7158] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7158] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7158] chdir("./file1") = 0 [pid 7158] ioctl(4, LOOP_CLR_FD) = 0 [pid 7158] close(4) = 0 [pid 7158] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7158] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7158] ftruncate(5, 33587199) = 0 [ 276.007503][ T7158] loop0: detected capacity change from 0 to 4096 [ 276.019571][ T7158] NILFS (loop0): invalid segment: Checksum error in segment payload [ 276.027981][ T7158] NILFS (loop0): trying rollback from an earlier position [ 276.039538][ T7158] NILFS (loop0): recovery complete [ 276.045287][ T7159] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7158] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7158] exit_group(0) = ? [pid 7158] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7158, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1035", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1035", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1035/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1035/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1035/binderfs") = 0 umount2("./1035/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1035/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1035/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1035/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1035/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1035/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1035") = 0 mkdir("./1036", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7160 ./strace-static-x86_64: Process 7160 attached [pid 7160] chdir("./1036") = 0 [pid 7160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7160] setpgid(0, 0) = 0 [pid 7160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7160] write(3, "1000", 4) = 4 [pid 7160] close(3) = 0 [pid 7160] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7160] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7160] memfd_create("syzkaller", 0) = 3 [pid 7160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7160] 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"..., 2097152) = 2097152 [pid 7160] munmap(0x7f320ee61000, 2097152) = 0 [pid 7160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7160] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7160] close(3) = 0 [pid 7160] mkdir("./file1", 0777) = 0 [pid 7160] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7160] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7160] chdir("./file1") = 0 [pid 7160] ioctl(4, LOOP_CLR_FD) = 0 [pid 7160] close(4) = 0 [pid 7160] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7160] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7160] ftruncate(5, 33587199) = 0 [ 276.225841][ T7160] loop0: detected capacity change from 0 to 4096 [ 276.238094][ T7160] NILFS (loop0): invalid segment: Checksum error in segment payload [ 276.246337][ T7160] NILFS (loop0): trying rollback from an earlier position [ 276.258509][ T7160] NILFS (loop0): recovery complete [ 276.264180][ T7161] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7160] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7160] exit_group(0) = ? [pid 7160] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7160, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1036", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1036", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1036/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1036/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1036/binderfs") = 0 umount2("./1036/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1036/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1036/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1036/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1036/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1036/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1036") = 0 mkdir("./1037", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7162 ./strace-static-x86_64: Process 7162 attached [pid 7162] chdir("./1037") = 0 [pid 7162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7162] setpgid(0, 0) = 0 [pid 7162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7162] write(3, "1000", 4) = 4 [pid 7162] close(3) = 0 [pid 7162] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7162] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7162] memfd_create("syzkaller", 0) = 3 [pid 7162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7162] 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"..., 2097152) = 2097152 [pid 7162] munmap(0x7f320ee61000, 2097152) = 0 [pid 7162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7162] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7162] close(3) = 0 [pid 7162] mkdir("./file1", 0777) = 0 [pid 7162] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7162] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7162] chdir("./file1") = 0 [pid 7162] ioctl(4, LOOP_CLR_FD) = 0 [pid 7162] close(4) = 0 [pid 7162] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7162] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7162] ftruncate(5, 33587199) = 0 [ 276.436554][ T7162] loop0: detected capacity change from 0 to 4096 [ 276.450097][ T7162] NILFS (loop0): invalid segment: Checksum error in segment payload [ 276.458313][ T7162] NILFS (loop0): trying rollback from an earlier position [ 276.469247][ T7162] NILFS (loop0): recovery complete [ 276.475125][ T7163] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7162] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7162] exit_group(0) = ? [pid 7162] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7162, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1037", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1037", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1037/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1037/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1037/binderfs") = 0 umount2("./1037/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1037/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1037/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1037/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1037/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1037/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1037") = 0 mkdir("./1038", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7164 attached , child_tidptr=0x555555c06690) = 7164 [pid 7164] chdir("./1038") = 0 [pid 7164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7164] setpgid(0, 0) = 0 [pid 7164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7164] write(3, "1000", 4) = 4 [pid 7164] close(3) = 0 [pid 7164] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7164] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7164] memfd_create("syzkaller", 0) = 3 [pid 7164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7164] 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"..., 2097152) = 2097152 [pid 7164] munmap(0x7f320ee61000, 2097152) = 0 [pid 7164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7164] close(3) = 0 [pid 7164] mkdir("./file1", 0777) = 0 [pid 7164] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7164] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7164] chdir("./file1") = 0 [pid 7164] ioctl(4, LOOP_CLR_FD) = 0 [pid 7164] close(4) = 0 [pid 7164] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7164] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7164] ftruncate(5, 33587199) = 0 [ 276.677189][ T7164] loop0: detected capacity change from 0 to 4096 [ 276.689212][ T7164] NILFS (loop0): invalid segment: Checksum error in segment payload [ 276.697317][ T7164] NILFS (loop0): trying rollback from an earlier position [ 276.708591][ T7164] NILFS (loop0): recovery complete [ 276.714561][ T7165] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7164] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7164] exit_group(0) = ? [pid 7164] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7164, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1038", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1038", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1038/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1038/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1038/binderfs") = 0 umount2("./1038/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1038/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1038/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1038/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1038/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1038/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1038") = 0 mkdir("./1039", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7166 ./strace-static-x86_64: Process 7166 attached [pid 7166] chdir("./1039") = 0 [pid 7166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7166] setpgid(0, 0) = 0 [pid 7166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7166] write(3, "1000", 4) = 4 [pid 7166] close(3) = 0 [pid 7166] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7166] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7166] memfd_create("syzkaller", 0) = 3 [pid 7166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7166] 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"..., 2097152) = 2097152 [pid 7166] munmap(0x7f320ee61000, 2097152) = 0 [pid 7166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7166] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7166] close(3) = 0 [pid 7166] mkdir("./file1", 0777) = 0 [pid 7166] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7166] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7166] chdir("./file1") = 0 [pid 7166] ioctl(4, LOOP_CLR_FD) = 0 [pid 7166] close(4) = 0 [pid 7166] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7166] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7166] ftruncate(5, 33587199) = 0 [ 276.903931][ T7166] loop0: detected capacity change from 0 to 4096 [ 276.916648][ T7166] NILFS (loop0): invalid segment: Checksum error in segment payload [ 276.924784][ T7166] NILFS (loop0): trying rollback from an earlier position [ 276.936297][ T7166] NILFS (loop0): recovery complete [ 276.942147][ T7167] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7166] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7166] exit_group(0) = ? [pid 7166] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7166, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1039", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1039", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1039/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1039/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1039/binderfs") = 0 umount2("./1039/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1039/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1039/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1039/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1039/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1039/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1039") = 0 mkdir("./1040", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7168 attached [pid 7168] chdir("./1040") = 0 [pid 7168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7168] setpgid(0, 0) = 0 [pid 7168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7168] write(3, "1000", 4) = 4 [pid 7168] close(3) = 0 [pid 7168] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7168] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7168] memfd_create("syzkaller", 0) = 3 [pid 7168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7168 [pid 7168] 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"..., 2097152) = 2097152 [pid 7168] munmap(0x7f320ee61000, 2097152) = 0 [pid 7168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7168] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7168] close(3) = 0 [pid 7168] mkdir("./file1", 0777) = 0 [pid 7168] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7168] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7168] chdir("./file1") = 0 [pid 7168] ioctl(4, LOOP_CLR_FD) = 0 [pid 7168] close(4) = 0 [pid 7168] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7168] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7168] ftruncate(5, 33587199) = 0 [ 277.136234][ T7168] loop0: detected capacity change from 0 to 4096 [ 277.148659][ T7168] NILFS (loop0): invalid segment: Checksum error in segment payload [ 277.156762][ T7168] NILFS (loop0): trying rollback from an earlier position [ 277.167732][ T7168] NILFS (loop0): recovery complete [ 277.173376][ T7169] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7168] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7168] exit_group(0) = ? [pid 7168] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7168, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1040", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1040", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1040/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1040/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1040/binderfs") = 0 umount2("./1040/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1040/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1040/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1040/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1040/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1040/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1040") = 0 mkdir("./1041", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7170 ./strace-static-x86_64: Process 7170 attached [pid 7170] chdir("./1041") = 0 [pid 7170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7170] setpgid(0, 0) = 0 [pid 7170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7170] write(3, "1000", 4) = 4 [pid 7170] close(3) = 0 [pid 7170] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7170] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7170] memfd_create("syzkaller", 0) = 3 [pid 7170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7170] 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"..., 2097152) = 2097152 [pid 7170] munmap(0x7f320ee61000, 2097152) = 0 [pid 7170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7170] close(3) = 0 [pid 7170] mkdir("./file1", 0777) = 0 [pid 7170] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7170] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7170] chdir("./file1") = 0 [pid 7170] ioctl(4, LOOP_CLR_FD) = 0 [pid 7170] close(4) = 0 [pid 7170] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7170] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7170] ftruncate(5, 33587199) = 0 [ 277.355186][ T7170] loop0: detected capacity change from 0 to 4096 [ 277.368048][ T7170] NILFS (loop0): invalid segment: Checksum error in segment payload [ 277.376325][ T7170] NILFS (loop0): trying rollback from an earlier position [ 277.388468][ T7170] NILFS (loop0): recovery complete [ 277.394270][ T7171] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7170] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7170] exit_group(0) = ? [pid 7170] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7170, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1041", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1041", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1041/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1041/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1041/binderfs") = 0 umount2("./1041/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1041/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1041/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1041/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1041/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1041/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1041") = 0 mkdir("./1042", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7172 ./strace-static-x86_64: Process 7172 attached [pid 7172] chdir("./1042") = 0 [pid 7172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7172] setpgid(0, 0) = 0 [pid 7172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7172] write(3, "1000", 4) = 4 [pid 7172] close(3) = 0 [pid 7172] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7172] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7172] memfd_create("syzkaller", 0) = 3 [pid 7172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7172] 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"..., 2097152) = 2097152 [pid 7172] munmap(0x7f320ee61000, 2097152) = 0 [pid 7172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7172] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7172] close(3) = 0 [pid 7172] mkdir("./file1", 0777) = 0 [pid 7172] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7172] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7172] chdir("./file1") = 0 [pid 7172] ioctl(4, LOOP_CLR_FD) = 0 [pid 7172] close(4) = 0 [pid 7172] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7172] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7172] ftruncate(5, 33587199) = 0 [ 277.578388][ T7172] loop0: detected capacity change from 0 to 4096 [ 277.590485][ T7172] NILFS (loop0): invalid segment: Checksum error in segment payload [ 277.598594][ T7172] NILFS (loop0): trying rollback from an earlier position [ 277.610015][ T7172] NILFS (loop0): recovery complete [ 277.615628][ T7173] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7172] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7172] exit_group(0) = ? [pid 7172] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7172, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1042", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1042", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1042/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1042/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1042/binderfs") = 0 umount2("./1042/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1042/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1042/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1042/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1042/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1042/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1042") = 0 mkdir("./1043", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7174 ./strace-static-x86_64: Process 7174 attached [pid 7174] chdir("./1043") = 0 [pid 7174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7174] setpgid(0, 0) = 0 [pid 7174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7174] write(3, "1000", 4) = 4 [pid 7174] close(3) = 0 [pid 7174] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7174] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7174] memfd_create("syzkaller", 0) = 3 [pid 7174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7174] 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"..., 2097152) = 2097152 [pid 7174] munmap(0x7f320ee61000, 2097152) = 0 [pid 7174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7174] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7174] close(3) = 0 [pid 7174] mkdir("./file1", 0777) = 0 [pid 7174] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7174] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7174] chdir("./file1") = 0 [pid 7174] ioctl(4, LOOP_CLR_FD) = 0 [pid 7174] close(4) = 0 [pid 7174] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7174] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7174] ftruncate(5, 33587199) = 0 [ 277.804569][ T7174] loop0: detected capacity change from 0 to 4096 [ 277.817415][ T7174] NILFS (loop0): invalid segment: Checksum error in segment payload [ 277.825683][ T7174] NILFS (loop0): trying rollback from an earlier position [ 277.837674][ T7174] NILFS (loop0): recovery complete [ 277.843805][ T7175] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7174] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7174] exit_group(0) = ? [pid 7174] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7174, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1043", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1043", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1043/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1043/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1043/binderfs") = 0 umount2("./1043/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1043/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1043/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1043/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1043/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1043/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1043") = 0 mkdir("./1044", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7176 attached [pid 7176] chdir("./1044") = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7176 [pid 7176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7176] setpgid(0, 0) = 0 [pid 7176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7176] write(3, "1000", 4) = 4 [pid 7176] close(3) = 0 [pid 7176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7176] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7176] memfd_create("syzkaller", 0) = 3 [pid 7176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7176] 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"..., 2097152) = 2097152 [pid 7176] munmap(0x7f320ee61000, 2097152) = 0 [pid 7176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7176] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7176] close(3) = 0 [pid 7176] mkdir("./file1", 0777) = 0 [pid 7176] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7176] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7176] chdir("./file1") = 0 [pid 7176] ioctl(4, LOOP_CLR_FD) = 0 [pid 7176] close(4) = 0 [pid 7176] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7176] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7176] ftruncate(5, 33587199) = 0 [ 278.036928][ T7176] loop0: detected capacity change from 0 to 4096 [ 278.049718][ T7176] NILFS (loop0): invalid segment: Checksum error in segment payload [ 278.057820][ T7176] NILFS (loop0): trying rollback from an earlier position [ 278.068821][ T7176] NILFS (loop0): recovery complete [ 278.074679][ T7177] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7176] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7176] exit_group(0) = ? [pid 7176] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7176, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1044", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1044", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1044/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1044/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1044/binderfs") = 0 umount2("./1044/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1044/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1044/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1044/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1044/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1044/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1044") = 0 mkdir("./1045", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7178 attached , child_tidptr=0x555555c06690) = 7178 [pid 7178] chdir("./1045") = 0 [pid 7178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7178] setpgid(0, 0) = 0 [pid 7178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7178] write(3, "1000", 4) = 4 [pid 7178] close(3) = 0 [pid 7178] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7178] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7178] memfd_create("syzkaller", 0) = 3 [pid 7178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7178] 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"..., 2097152) = 2097152 [pid 7178] munmap(0x7f320ee61000, 2097152) = 0 [pid 7178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7178] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7178] close(3) = 0 [pid 7178] mkdir("./file1", 0777) = 0 [pid 7178] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7178] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7178] chdir("./file1") = 0 [pid 7178] ioctl(4, LOOP_CLR_FD) = 0 [pid 7178] close(4) = 0 [pid 7178] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7178] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7178] ftruncate(5, 33587199) = 0 [ 278.271016][ T7178] loop0: detected capacity change from 0 to 4096 [ 278.283650][ T7178] NILFS (loop0): invalid segment: Checksum error in segment payload [ 278.292117][ T7178] NILFS (loop0): trying rollback from an earlier position [ 278.303516][ T7178] NILFS (loop0): recovery complete [ 278.309097][ T7179] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7178] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7178] exit_group(0) = ? [pid 7178] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7178, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1045", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1045", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1045/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1045/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1045/binderfs") = 0 umount2("./1045/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1045/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1045/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1045/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1045/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1045/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1045") = 0 mkdir("./1046", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7180 ./strace-static-x86_64: Process 7180 attached [pid 7180] chdir("./1046") = 0 [pid 7180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7180] setpgid(0, 0) = 0 [pid 7180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7180] write(3, "1000", 4) = 4 [pid 7180] close(3) = 0 [pid 7180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7180] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7180] memfd_create("syzkaller", 0) = 3 [pid 7180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7180] 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"..., 2097152) = 2097152 [pid 7180] munmap(0x7f320ee61000, 2097152) = 0 [pid 7180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7180] close(3) = 0 [pid 7180] mkdir("./file1", 0777) = 0 [pid 7180] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7180] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7180] chdir("./file1") = 0 [pid 7180] ioctl(4, LOOP_CLR_FD) = 0 [pid 7180] close(4) = 0 [pid 7180] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7180] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7180] ftruncate(5, 33587199) = 0 [ 278.488977][ T7180] loop0: detected capacity change from 0 to 4096 [ 278.502050][ T7180] NILFS (loop0): invalid segment: Checksum error in segment payload [ 278.510120][ T7180] NILFS (loop0): trying rollback from an earlier position [ 278.521593][ T7180] NILFS (loop0): recovery complete [ 278.527295][ T7181] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7180] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7180] exit_group(0) = ? [pid 7180] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7180, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1046", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1046", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1046/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1046/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1046/binderfs") = 0 umount2("./1046/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1046/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1046/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1046/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1046/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1046/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1046") = 0 mkdir("./1047", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7182 ./strace-static-x86_64: Process 7182 attached [pid 7182] chdir("./1047") = 0 [pid 7182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7182] setpgid(0, 0) = 0 [pid 7182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7182] write(3, "1000", 4) = 4 [pid 7182] close(3) = 0 [pid 7182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7182] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7182] memfd_create("syzkaller", 0) = 3 [pid 7182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7182] 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"..., 2097152) = 2097152 [pid 7182] munmap(0x7f320ee61000, 2097152) = 0 [pid 7182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7182] close(3) = 0 [pid 7182] mkdir("./file1", 0777) = 0 [pid 7182] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7182] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7182] chdir("./file1") = 0 [pid 7182] ioctl(4, LOOP_CLR_FD) = 0 [pid 7182] close(4) = 0 [pid 7182] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7182] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7182] ftruncate(5, 33587199) = 0 [ 278.714914][ T7182] loop0: detected capacity change from 0 to 4096 [ 278.727876][ T7182] NILFS (loop0): invalid segment: Checksum error in segment payload [ 278.736125][ T7182] NILFS (loop0): trying rollback from an earlier position [ 278.747892][ T7182] NILFS (loop0): recovery complete [ 278.753571][ T7183] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7182] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7182] exit_group(0) = ? [pid 7182] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7182, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1047", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1047", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1047/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1047/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1047/binderfs") = 0 umount2("./1047/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1047/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1047/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1047/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1047/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1047/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1047") = 0 mkdir("./1048", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7184 ./strace-static-x86_64: Process 7184 attached [pid 7184] chdir("./1048") = 0 [pid 7184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7184] setpgid(0, 0) = 0 [pid 7184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7184] write(3, "1000", 4) = 4 [pid 7184] close(3) = 0 [pid 7184] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7184] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7184] memfd_create("syzkaller", 0) = 3 [pid 7184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7184] 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"..., 2097152) = 2097152 [pid 7184] munmap(0x7f320ee61000, 2097152) = 0 [pid 7184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7184] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7184] close(3) = 0 [pid 7184] mkdir("./file1", 0777) = 0 [pid 7184] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7184] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7184] chdir("./file1") = 0 [pid 7184] ioctl(4, LOOP_CLR_FD) = 0 [pid 7184] close(4) = 0 [pid 7184] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7184] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7184] ftruncate(5, 33587199) = 0 [ 278.944366][ T7184] loop0: detected capacity change from 0 to 4096 [ 278.956488][ T7184] NILFS (loop0): invalid segment: Checksum error in segment payload [ 278.964933][ T7184] NILFS (loop0): trying rollback from an earlier position [ 278.976234][ T7184] NILFS (loop0): recovery complete [ 278.982196][ T7185] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7184] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7184] exit_group(0) = ? [pid 7184] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7184, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1048", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1048", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1048/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1048/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1048/binderfs") = 0 umount2("./1048/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1048/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1048/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1048/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1048/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1048/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1048") = 0 mkdir("./1049", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7186 ./strace-static-x86_64: Process 7186 attached [pid 7186] chdir("./1049") = 0 [pid 7186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7186] setpgid(0, 0) = 0 [pid 7186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7186] write(3, "1000", 4) = 4 [pid 7186] close(3) = 0 [pid 7186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7186] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7186] memfd_create("syzkaller", 0) = 3 [pid 7186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7186] 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"..., 2097152) = 2097152 [pid 7186] munmap(0x7f320ee61000, 2097152) = 0 [pid 7186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7186] close(3) = 0 [pid 7186] mkdir("./file1", 0777) = 0 [pid 7186] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7186] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7186] chdir("./file1") = 0 [pid 7186] ioctl(4, LOOP_CLR_FD) = 0 [pid 7186] close(4) = 0 [pid 7186] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7186] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7186] ftruncate(5, 33587199) = 0 [ 279.173952][ T7186] loop0: detected capacity change from 0 to 4096 [ 279.186097][ T7186] NILFS (loop0): invalid segment: Checksum error in segment payload [ 279.194307][ T7186] NILFS (loop0): trying rollback from an earlier position [ 279.205743][ T7186] NILFS (loop0): recovery complete [ 279.211469][ T7187] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7186] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7186] exit_group(0) = ? [pid 7186] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7186, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1049", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1049", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1049/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1049/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1049/binderfs") = 0 umount2("./1049/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1049/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1049/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1049/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1049/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1049/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1049") = 0 mkdir("./1050", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7188 attached [pid 7188] chdir("./1050") = 0 [pid 7188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7188] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7188 [pid 7188] <... setpgid resumed>) = 0 [pid 7188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7188] write(3, "1000", 4) = 4 [pid 7188] close(3) = 0 [pid 7188] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7188] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7188] memfd_create("syzkaller", 0) = 3 [pid 7188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7188] 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"..., 2097152) = 2097152 [pid 7188] munmap(0x7f320ee61000, 2097152) = 0 [pid 7188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7188] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7188] close(3) = 0 [pid 7188] mkdir("./file1", 0777) = 0 [pid 7188] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7188] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7188] chdir("./file1") = 0 [pid 7188] ioctl(4, LOOP_CLR_FD) = 0 [pid 7188] close(4) = 0 [pid 7188] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7188] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7188] ftruncate(5, 33587199) = 0 [ 279.401316][ T7188] loop0: detected capacity change from 0 to 4096 [ 279.414422][ T7188] NILFS (loop0): invalid segment: Checksum error in segment payload [ 279.422619][ T7188] NILFS (loop0): trying rollback from an earlier position [ 279.434088][ T7188] NILFS (loop0): recovery complete [ 279.439846][ T7189] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7188] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7188] exit_group(0) = ? [pid 7188] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7188, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1050", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1050", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1050/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1050/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1050/binderfs") = 0 umount2("./1050/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1050/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1050/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1050/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1050/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1050/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1050") = 0 mkdir("./1051", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7190 ./strace-static-x86_64: Process 7190 attached [pid 7190] chdir("./1051") = 0 [pid 7190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7190] setpgid(0, 0) = 0 [pid 7190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7190] write(3, "1000", 4) = 4 [pid 7190] close(3) = 0 [pid 7190] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7190] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7190] memfd_create("syzkaller", 0) = 3 [pid 7190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7190] 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"..., 2097152) = 2097152 [pid 7190] munmap(0x7f320ee61000, 2097152) = 0 [pid 7190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7190] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7190] close(3) = 0 [pid 7190] mkdir("./file1", 0777) = 0 [pid 7190] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7190] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7190] chdir("./file1") = 0 [pid 7190] ioctl(4, LOOP_CLR_FD) = 0 [pid 7190] close(4) = 0 [pid 7190] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7190] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7190] ftruncate(5, 33587199) = 0 [ 279.621631][ T7190] loop0: detected capacity change from 0 to 4096 [ 279.634731][ T7190] NILFS (loop0): invalid segment: Checksum error in segment payload [ 279.642923][ T7190] NILFS (loop0): trying rollback from an earlier position [ 279.653839][ T7190] NILFS (loop0): recovery complete [ 279.659675][ T7191] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7190] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7190] exit_group(0) = ? [pid 7190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7190, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1051", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1051", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1051/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1051/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1051/binderfs") = 0 umount2("./1051/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1051/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1051/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1051/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1051/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1051/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1051") = 0 mkdir("./1052", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7192 attached , child_tidptr=0x555555c06690) = 7192 [pid 7192] chdir("./1052") = 0 [pid 7192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7192] setpgid(0, 0) = 0 [pid 7192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7192] write(3, "1000", 4) = 4 [pid 7192] close(3) = 0 [pid 7192] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7192] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7192] memfd_create("syzkaller", 0) = 3 [pid 7192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7192] 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"..., 2097152) = 2097152 [pid 7192] munmap(0x7f320ee61000, 2097152) = 0 [pid 7192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7192] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7192] close(3) = 0 [pid 7192] mkdir("./file1", 0777) = 0 [pid 7192] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7192] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7192] chdir("./file1") = 0 [pid 7192] ioctl(4, LOOP_CLR_FD) = 0 [pid 7192] close(4) = 0 [pid 7192] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7192] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7192] ftruncate(5, 33587199) = 0 [ 279.850077][ T7192] loop0: detected capacity change from 0 to 4096 [ 279.861821][ T7192] NILFS (loop0): invalid segment: Checksum error in segment payload [ 279.869867][ T7192] NILFS (loop0): trying rollback from an earlier position [ 279.881302][ T7192] NILFS (loop0): recovery complete [ 279.886913][ T7193] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7192] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7192] exit_group(0) = ? [pid 7192] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7192, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1052", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1052", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1052/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1052/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1052/binderfs") = 0 umount2("./1052/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1052/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1052/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1052/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1052/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1052/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1052") = 0 mkdir("./1053", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7194 ./strace-static-x86_64: Process 7194 attached [pid 7194] chdir("./1053") = 0 [pid 7194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7194] setpgid(0, 0) = 0 [pid 7194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7194] write(3, "1000", 4) = 4 [pid 7194] close(3) = 0 [pid 7194] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7194] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7194] memfd_create("syzkaller", 0) = 3 [pid 7194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7194] 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"..., 2097152) = 2097152 [pid 7194] munmap(0x7f320ee61000, 2097152) = 0 [pid 7194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7194] close(3) = 0 [pid 7194] mkdir("./file1", 0777) = 0 [pid 7194] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7194] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7194] chdir("./file1") = 0 [pid 7194] ioctl(4, LOOP_CLR_FD) = 0 [pid 7194] close(4) = 0 [pid 7194] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7194] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7194] ftruncate(5, 33587199) = 0 [ 280.078530][ T7194] loop0: detected capacity change from 0 to 4096 [ 280.091113][ T7194] NILFS (loop0): invalid segment: Checksum error in segment payload [ 280.099160][ T7194] NILFS (loop0): trying rollback from an earlier position [ 280.110918][ T7194] NILFS (loop0): recovery complete [ 280.116533][ T7195] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7194] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7194] exit_group(0) = ? [pid 7194] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7194, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1053", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1053", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1053/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1053/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1053/binderfs") = 0 umount2("./1053/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1053/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1053/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1053/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1053/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1053/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1053") = 0 mkdir("./1054", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7196 ./strace-static-x86_64: Process 7196 attached [pid 7196] chdir("./1054") = 0 [pid 7196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7196] setpgid(0, 0) = 0 [pid 7196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7196] write(3, "1000", 4) = 4 [pid 7196] close(3) = 0 [pid 7196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7196] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7196] memfd_create("syzkaller", 0) = 3 [pid 7196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7196] 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"..., 2097152) = 2097152 [pid 7196] munmap(0x7f320ee61000, 2097152) = 0 [pid 7196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7196] close(3) = 0 [pid 7196] mkdir("./file1", 0777) = 0 [pid 7196] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7196] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7196] chdir("./file1") = 0 [pid 7196] ioctl(4, LOOP_CLR_FD) = 0 [pid 7196] close(4) = 0 [pid 7196] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7196] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7196] ftruncate(5, 33587199) = 0 [ 280.305939][ T7196] loop0: detected capacity change from 0 to 4096 [ 280.318380][ T7196] NILFS (loop0): invalid segment: Checksum error in segment payload [ 280.326436][ T7196] NILFS (loop0): trying rollback from an earlier position [ 280.338174][ T7196] NILFS (loop0): recovery complete [ 280.344091][ T7197] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7196] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7196] exit_group(0) = ? [pid 7196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7196, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1054", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1054", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1054/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1054/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1054/binderfs") = 0 umount2("./1054/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1054/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1054/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1054/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1054/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1054/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1054") = 0 mkdir("./1055", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7198 attached , child_tidptr=0x555555c06690) = 7198 [pid 7198] chdir("./1055") = 0 [pid 7198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7198] setpgid(0, 0) = 0 [pid 7198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7198] write(3, "1000", 4) = 4 [pid 7198] close(3) = 0 [pid 7198] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7198] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7198] memfd_create("syzkaller", 0) = 3 [pid 7198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7198] 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"..., 2097152) = 2097152 [pid 7198] munmap(0x7f320ee61000, 2097152) = 0 [pid 7198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7198] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7198] close(3) = 0 [pid 7198] mkdir("./file1", 0777) = 0 [pid 7198] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7198] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7198] chdir("./file1") = 0 [pid 7198] ioctl(4, LOOP_CLR_FD) = 0 [pid 7198] close(4) = 0 [pid 7198] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7198] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7198] ftruncate(5, 33587199) = 0 [ 280.536973][ T7198] loop0: detected capacity change from 0 to 4096 [ 280.549327][ T7198] NILFS (loop0): invalid segment: Checksum error in segment payload [ 280.557634][ T7198] NILFS (loop0): trying rollback from an earlier position [ 280.568963][ T7198] NILFS (loop0): recovery complete [ 280.574760][ T7199] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7198] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7198] exit_group(0) = ? [pid 7198] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7198, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1055", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1055", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1055/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1055/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1055/binderfs") = 0 umount2("./1055/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1055/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1055/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1055/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1055/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1055/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1055") = 0 mkdir("./1056", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7200 attached [pid 7200] chdir("./1056") = 0 [pid 7200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7200] setpgid(0, 0) = 0 [pid 7200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7200 [pid 7200] write(3, "1000", 4) = 4 [pid 7200] close(3) = 0 [pid 7200] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7200] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7200] memfd_create("syzkaller", 0) = 3 [pid 7200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7200] 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"..., 2097152) = 2097152 [pid 7200] munmap(0x7f320ee61000, 2097152) = 0 [pid 7200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7200] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7200] close(3) = 0 [pid 7200] mkdir("./file1", 0777) = 0 [pid 7200] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7200] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7200] chdir("./file1") = 0 [pid 7200] ioctl(4, LOOP_CLR_FD) = 0 [pid 7200] close(4) = 0 [pid 7200] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7200] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7200] ftruncate(5, 33587199) = 0 [ 280.768967][ T7200] loop0: detected capacity change from 0 to 4096 [ 280.781394][ T7200] NILFS (loop0): invalid segment: Checksum error in segment payload [ 280.789458][ T7200] NILFS (loop0): trying rollback from an earlier position [ 280.800967][ T7200] NILFS (loop0): recovery complete [ 280.806690][ T7201] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7200] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7200] exit_group(0) = ? [pid 7200] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7200, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./1056", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1056", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1056/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1056/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1056/binderfs") = 0 umount2("./1056/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1056/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1056/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1056/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1056/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1056/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1056") = 0 mkdir("./1057", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7202 ./strace-static-x86_64: Process 7202 attached [pid 7202] chdir("./1057") = 0 [pid 7202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7202] setpgid(0, 0) = 0 [pid 7202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7202] write(3, "1000", 4) = 4 [pid 7202] close(3) = 0 [pid 7202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7202] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7202] memfd_create("syzkaller", 0) = 3 [pid 7202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7202] 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"..., 2097152) = 2097152 [pid 7202] munmap(0x7f320ee61000, 2097152) = 0 [pid 7202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7202] close(3) = 0 [pid 7202] mkdir("./file1", 0777) = 0 [pid 7202] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7202] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7202] chdir("./file1") = 0 [pid 7202] ioctl(4, LOOP_CLR_FD) = 0 [pid 7202] close(4) = 0 [pid 7202] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7202] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7202] ftruncate(5, 33587199) = 0 [ 280.983497][ T7202] loop0: detected capacity change from 0 to 4096 [ 280.995231][ T7202] NILFS (loop0): invalid segment: Checksum error in segment payload [ 281.003412][ T7202] NILFS (loop0): trying rollback from an earlier position [ 281.014713][ T7202] NILFS (loop0): recovery complete [ 281.020447][ T7203] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7202] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7202] exit_group(0) = ? [pid 7202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7202, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1057", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1057", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1057/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1057/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1057/binderfs") = 0 umount2("./1057/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1057/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1057/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1057/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1057/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1057/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1057") = 0 mkdir("./1058", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7204 ./strace-static-x86_64: Process 7204 attached [pid 7204] chdir("./1058") = 0 [pid 7204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7204] setpgid(0, 0) = 0 [pid 7204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7204] write(3, "1000", 4) = 4 [pid 7204] close(3) = 0 [pid 7204] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7204] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7204] memfd_create("syzkaller", 0) = 3 [pid 7204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7204] 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"..., 2097152) = 2097152 [pid 7204] munmap(0x7f320ee61000, 2097152) = 0 [pid 7204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7204] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7204] close(3) = 0 [pid 7204] mkdir("./file1", 0777) = 0 [pid 7204] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7204] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7204] chdir("./file1") = 0 [pid 7204] ioctl(4, LOOP_CLR_FD) = 0 [pid 7204] close(4) = 0 [pid 7204] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7204] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7204] ftruncate(5, 33587199) = 0 [ 281.230351][ T7204] loop0: detected capacity change from 0 to 4096 [ 281.242971][ T7204] NILFS (loop0): invalid segment: Checksum error in segment payload [ 281.251187][ T7204] NILFS (loop0): trying rollback from an earlier position [ 281.262403][ T7204] NILFS (loop0): recovery complete [ 281.268173][ T7205] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7204] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7204] exit_group(0) = ? [pid 7204] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7204, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1058", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1058", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1058/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1058/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1058/binderfs") = 0 umount2("./1058/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1058/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1058/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1058/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1058/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1058/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1058") = 0 mkdir("./1059", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7206 attached [pid 7206] chdir("./1059") = 0 [pid 7206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7206] setpgid(0, 0) = 0 [pid 7206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7206] write(3, "1000", 4) = 4 [pid 7206] close(3) = 0 [pid 7206] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7206] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7206 [pid 7206] memfd_create("syzkaller", 0) = 3 [pid 7206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7206] 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"..., 2097152) = 2097152 [pid 7206] munmap(0x7f320ee61000, 2097152) = 0 [pid 7206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7206] close(3) = 0 [pid 7206] mkdir("./file1", 0777) = 0 [pid 7206] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7206] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7206] chdir("./file1") = 0 [pid 7206] ioctl(4, LOOP_CLR_FD) = 0 [pid 7206] close(4) = 0 [pid 7206] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7206] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7206] ftruncate(5, 33587199) = 0 [ 281.465049][ T7206] loop0: detected capacity change from 0 to 4096 [ 281.478068][ T7206] NILFS (loop0): invalid segment: Checksum error in segment payload [ 281.486210][ T7206] NILFS (loop0): trying rollback from an earlier position [ 281.497432][ T7206] NILFS (loop0): recovery complete [ 281.503159][ T7207] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7206] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7206] exit_group(0) = ? [pid 7206] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7206, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1059", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1059", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1059/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1059/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1059/binderfs") = 0 umount2("./1059/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1059/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1059/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1059/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1059/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1059/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1059") = 0 mkdir("./1060", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7208 attached [pid 7208] chdir("./1060") = 0 [pid 7208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7208] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7208 [pid 7208] <... setpgid resumed>) = 0 [pid 7208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7208] write(3, "1000", 4) = 4 [pid 7208] close(3) = 0 [pid 7208] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7208] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7208] memfd_create("syzkaller", 0) = 3 [pid 7208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7208] 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"..., 2097152) = 2097152 [pid 7208] munmap(0x7f320ee61000, 2097152) = 0 [pid 7208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7208] close(3) = 0 [pid 7208] mkdir("./file1", 0777) = 0 [pid 7208] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7208] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7208] chdir("./file1") = 0 [pid 7208] ioctl(4, LOOP_CLR_FD) = 0 [pid 7208] close(4) = 0 [pid 7208] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7208] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7208] ftruncate(5, 33587199) = 0 [ 281.697026][ T7208] loop0: detected capacity change from 0 to 4096 [ 281.709091][ T7208] NILFS (loop0): invalid segment: Checksum error in segment payload [ 281.717195][ T7208] NILFS (loop0): trying rollback from an earlier position [ 281.728878][ T7208] NILFS (loop0): recovery complete [ 281.734984][ T7209] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7208] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7208] exit_group(0) = ? [pid 7208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7208, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1060", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1060", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1060/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1060/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1060/binderfs") = 0 umount2("./1060/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1060/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1060/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1060/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1060/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1060/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1060") = 0 mkdir("./1061", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7210 attached [pid 7210] chdir("./1061") = 0 [pid 7210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7210] setpgid(0, 0) = 0 [pid 7210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7210] write(3, "1000", 4) = 4 [pid 7210] close(3) = 0 [pid 7210] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7210] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7210] memfd_create("syzkaller", 0) = 3 [pid 7210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7210 [pid 7210] 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"..., 2097152) = 2097152 [pid 7210] munmap(0x7f320ee61000, 2097152) = 0 [pid 7210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7210] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7210] close(3) = 0 [pid 7210] mkdir("./file1", 0777) = 0 [pid 7210] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7210] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7210] chdir("./file1") = 0 [pid 7210] ioctl(4, LOOP_CLR_FD) = 0 [pid 7210] close(4) = 0 [pid 7210] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7210] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7210] ftruncate(5, 33587199) = 0 [ 281.925708][ T7210] loop0: detected capacity change from 0 to 4096 [ 281.937796][ T7210] NILFS (loop0): invalid segment: Checksum error in segment payload [ 281.945934][ T7210] NILFS (loop0): trying rollback from an earlier position [ 281.956953][ T7210] NILFS (loop0): recovery complete [ 281.962595][ T7211] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7210] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7210] exit_group(0) = ? [pid 7210] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7210, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1061", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1061", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1061/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1061/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1061/binderfs") = 0 umount2("./1061/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1061/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1061/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1061/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1061/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1061/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1061") = 0 mkdir("./1062", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7212 ./strace-static-x86_64: Process 7212 attached [pid 7212] chdir("./1062") = 0 [pid 7212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7212] setpgid(0, 0) = 0 [pid 7212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7212] write(3, "1000", 4) = 4 [pid 7212] close(3) = 0 [pid 7212] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7212] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7212] memfd_create("syzkaller", 0) = 3 [pid 7212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7212] 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"..., 2097152) = 2097152 [pid 7212] munmap(0x7f320ee61000, 2097152) = 0 [pid 7212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7212] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7212] close(3) = 0 [pid 7212] mkdir("./file1", 0777) = 0 [pid 7212] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7212] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7212] chdir("./file1") = 0 [pid 7212] ioctl(4, LOOP_CLR_FD) = 0 [pid 7212] close(4) = 0 [pid 7212] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7212] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7212] ftruncate(5, 33587199) = 0 [ 282.151388][ T7212] loop0: detected capacity change from 0 to 4096 [ 282.163543][ T7212] NILFS (loop0): invalid segment: Checksum error in segment payload [ 282.171563][ T7212] NILFS (loop0): trying rollback from an earlier position [ 282.182479][ T7212] NILFS (loop0): recovery complete [ 282.188158][ T7213] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7212] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7212] exit_group(0) = ? [pid 7212] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7212, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1062", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1062", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1062/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1062/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1062/binderfs") = 0 umount2("./1062/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1062/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1062/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1062/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1062/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1062/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1062") = 0 mkdir("./1063", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7214 ./strace-static-x86_64: Process 7214 attached [pid 7214] chdir("./1063") = 0 [pid 7214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7214] setpgid(0, 0) = 0 [pid 7214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7214] write(3, "1000", 4) = 4 [pid 7214] close(3) = 0 [pid 7214] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7214] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7214] memfd_create("syzkaller", 0) = 3 [pid 7214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7214] 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"..., 2097152) = 2097152 [pid 7214] munmap(0x7f320ee61000, 2097152) = 0 [pid 7214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7214] close(3) = 0 [pid 7214] mkdir("./file1", 0777) = 0 [pid 7214] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7214] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7214] chdir("./file1") = 0 [pid 7214] ioctl(4, LOOP_CLR_FD) = 0 [pid 7214] close(4) = 0 [pid 7214] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7214] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7214] ftruncate(5, 33587199) = 0 [ 282.382417][ T7214] loop0: detected capacity change from 0 to 4096 [ 282.394707][ T7214] NILFS (loop0): invalid segment: Checksum error in segment payload [ 282.402726][ T7214] NILFS (loop0): trying rollback from an earlier position [ 282.413845][ T7214] NILFS (loop0): recovery complete [ 282.419499][ T7215] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7214] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7214] exit_group(0) = ? [pid 7214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7214, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1063", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1063", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1063/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1063/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1063/binderfs") = 0 umount2("./1063/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1063/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1063/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1063/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1063/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1063/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1063") = 0 mkdir("./1064", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7216 attached , child_tidptr=0x555555c06690) = 7216 [pid 7216] chdir("./1064") = 0 [pid 7216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7216] setpgid(0, 0) = 0 [pid 7216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7216] write(3, "1000", 4) = 4 [pid 7216] close(3) = 0 [pid 7216] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7216] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7216] memfd_create("syzkaller", 0) = 3 [pid 7216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7216] 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"..., 2097152) = 2097152 [pid 7216] munmap(0x7f320ee61000, 2097152) = 0 [pid 7216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7216] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7216] close(3) = 0 [pid 7216] mkdir("./file1", 0777) = 0 [pid 7216] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7216] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7216] chdir("./file1") = 0 [pid 7216] ioctl(4, LOOP_CLR_FD) = 0 [pid 7216] close(4) = 0 [pid 7216] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7216] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7216] ftruncate(5, 33587199) = 0 [ 282.617964][ T7216] loop0: detected capacity change from 0 to 4096 [ 282.630037][ T7216] NILFS (loop0): invalid segment: Checksum error in segment payload [ 282.638308][ T7216] NILFS (loop0): trying rollback from an earlier position [ 282.649360][ T7216] NILFS (loop0): recovery complete [ 282.655372][ T7217] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7216] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7216] exit_group(0) = ? [pid 7216] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7216, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1064", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1064", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1064/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1064/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1064/binderfs") = 0 umount2("./1064/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1064/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1064/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1064/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1064/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1064/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1064") = 0 mkdir("./1065", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7218 ./strace-static-x86_64: Process 7218 attached [pid 7218] chdir("./1065") = 0 [pid 7218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7218] setpgid(0, 0) = 0 [pid 7218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7218] write(3, "1000", 4) = 4 [pid 7218] close(3) = 0 [pid 7218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7218] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7218] memfd_create("syzkaller", 0) = 3 [pid 7218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7218] 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"..., 2097152) = 2097152 [pid 7218] munmap(0x7f320ee61000, 2097152) = 0 [pid 7218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7218] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7218] close(3) = 0 [pid 7218] mkdir("./file1", 0777) = 0 [pid 7218] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7218] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7218] chdir("./file1") = 0 [pid 7218] ioctl(4, LOOP_CLR_FD) = 0 [pid 7218] close(4) = 0 [pid 7218] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7218] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7218] ftruncate(5, 33587199) = 0 [ 282.855326][ T7218] loop0: detected capacity change from 0 to 4096 [ 282.868015][ T7218] NILFS (loop0): invalid segment: Checksum error in segment payload [ 282.876312][ T7218] NILFS (loop0): trying rollback from an earlier position [ 282.888150][ T7218] NILFS (loop0): recovery complete [ 282.894033][ T7219] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7218] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7218] exit_group(0) = ? [pid 7218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7218, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1065", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1065", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1065/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1065/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1065/binderfs") = 0 umount2("./1065/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1065/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1065/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1065/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1065/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1065/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1065") = 0 mkdir("./1066", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7220 ./strace-static-x86_64: Process 7220 attached [pid 7220] chdir("./1066") = 0 [pid 7220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7220] setpgid(0, 0) = 0 [pid 7220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7220] write(3, "1000", 4) = 4 [pid 7220] close(3) = 0 [pid 7220] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7220] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7220] memfd_create("syzkaller", 0) = 3 [pid 7220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7220] 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"..., 2097152) = 2097152 [pid 7220] munmap(0x7f320ee61000, 2097152) = 0 [pid 7220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7220] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7220] close(3) = 0 [pid 7220] mkdir("./file1", 0777) = 0 [pid 7220] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7220] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7220] chdir("./file1") = 0 [pid 7220] ioctl(4, LOOP_CLR_FD) = 0 [pid 7220] close(4) = 0 [pid 7220] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7220] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7220] ftruncate(5, 33587199) = 0 [ 283.083885][ T7220] loop0: detected capacity change from 0 to 4096 [ 283.095805][ T7220] NILFS (loop0): invalid segment: Checksum error in segment payload [ 283.104022][ T7220] NILFS (loop0): trying rollback from an earlier position [ 283.115301][ T7220] NILFS (loop0): recovery complete [ 283.121336][ T7221] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7220] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7220] exit_group(0) = ? [pid 7220] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7220, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1066", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1066", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1066/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1066/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1066/binderfs") = 0 umount2("./1066/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1066/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1066/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1066/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1066/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1066/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1066") = 0 mkdir("./1067", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7222 attached , child_tidptr=0x555555c06690) = 7222 [pid 7222] chdir("./1067") = 0 [pid 7222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7222] setpgid(0, 0) = 0 [pid 7222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7222] write(3, "1000", 4) = 4 [pid 7222] close(3) = 0 [pid 7222] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7222] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7222] memfd_create("syzkaller", 0) = 3 [pid 7222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7222] 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"..., 2097152) = 2097152 [pid 7222] munmap(0x7f320ee61000, 2097152) = 0 [pid 7222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7222] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7222] close(3) = 0 [pid 7222] mkdir("./file1", 0777) = 0 [pid 7222] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7222] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7222] chdir("./file1") = 0 [pid 7222] ioctl(4, LOOP_CLR_FD) = 0 [pid 7222] close(4) = 0 [pid 7222] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7222] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7222] ftruncate(5, 33587199) = 0 [ 283.314948][ T7222] loop0: detected capacity change from 0 to 4096 [ 283.327108][ T7222] NILFS (loop0): invalid segment: Checksum error in segment payload [ 283.335365][ T7222] NILFS (loop0): trying rollback from an earlier position [ 283.346964][ T7222] NILFS (loop0): recovery complete [ 283.352834][ T7223] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7222] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7222] exit_group(0) = ? [pid 7222] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7222, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1067", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1067", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1067/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1067/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1067/binderfs") = 0 umount2("./1067/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1067/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1067/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1067/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1067/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1067/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1067") = 0 mkdir("./1068", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7224 attached [pid 7224] chdir("./1068") = 0 [pid 7224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7224] setpgid(0, 0) = 0 [pid 7224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7224 [pid 7224] <... openat resumed>) = 3 [pid 7224] write(3, "1000", 4) = 4 [pid 7224] close(3) = 0 [pid 7224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7224] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7224] memfd_create("syzkaller", 0) = 3 [pid 7224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7224] 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"..., 2097152) = 2097152 [pid 7224] munmap(0x7f320ee61000, 2097152) = 0 [pid 7224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7224] close(3) = 0 [pid 7224] mkdir("./file1", 0777) = 0 [pid 7224] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7224] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7224] chdir("./file1") = 0 [pid 7224] ioctl(4, LOOP_CLR_FD) = 0 [pid 7224] close(4) = 0 [pid 7224] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7224] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7224] ftruncate(5, 33587199) = 0 [ 283.547668][ T7224] loop0: detected capacity change from 0 to 4096 [ 283.560633][ T7224] NILFS (loop0): invalid segment: Checksum error in segment payload [ 283.568646][ T7224] NILFS (loop0): trying rollback from an earlier position [ 283.580135][ T7224] NILFS (loop0): recovery complete [ 283.585981][ T7225] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7224] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7224] exit_group(0) = ? [pid 7224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7224, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1068", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1068", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1068/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1068/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1068/binderfs") = 0 umount2("./1068/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1068/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1068/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1068/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1068/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1068/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1068") = 0 mkdir("./1069", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7226 attached , child_tidptr=0x555555c06690) = 7226 [pid 7226] chdir("./1069") = 0 [pid 7226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7226] setpgid(0, 0) = 0 [pid 7226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7226] write(3, "1000", 4) = 4 [pid 7226] close(3) = 0 [pid 7226] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7226] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7226] memfd_create("syzkaller", 0) = 3 [pid 7226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7226] 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"..., 2097152) = 2097152 [pid 7226] munmap(0x7f320ee61000, 2097152) = 0 [pid 7226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7226] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7226] close(3) = 0 [pid 7226] mkdir("./file1", 0777) = 0 [pid 7226] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7226] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7226] chdir("./file1") = 0 [pid 7226] ioctl(4, LOOP_CLR_FD) = 0 [pid 7226] close(4) = 0 [pid 7226] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7226] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7226] ftruncate(5, 33587199) = 0 [ 283.780632][ T7226] loop0: detected capacity change from 0 to 4096 [ 283.792493][ T7226] NILFS (loop0): invalid segment: Checksum error in segment payload [ 283.800747][ T7226] NILFS (loop0): trying rollback from an earlier position [ 283.811754][ T7226] NILFS (loop0): recovery complete [ 283.817340][ T7227] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7226] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7226] exit_group(0) = ? [pid 7226] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7226, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1069", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1069", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1069/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1069/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1069/binderfs") = 0 umount2("./1069/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1069/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1069/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1069/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1069/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1069/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1069") = 0 mkdir("./1070", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7228 attached [pid 7228] chdir("./1070") = 0 [pid 7228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7228] setpgid(0, 0) = 0 [pid 7228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7228 [pid 7228] <... openat resumed>) = 3 [pid 7228] write(3, "1000", 4) = 4 [pid 7228] close(3) = 0 [pid 7228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7228] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7228] memfd_create("syzkaller", 0) = 3 [pid 7228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7228] 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"..., 2097152) = 2097152 [pid 7228] munmap(0x7f320ee61000, 2097152) = 0 [pid 7228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7228] close(3) = 0 [pid 7228] mkdir("./file1", 0777) = 0 [pid 7228] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7228] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7228] chdir("./file1") = 0 [pid 7228] ioctl(4, LOOP_CLR_FD) = 0 [pid 7228] close(4) = 0 [pid 7228] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7228] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7228] ftruncate(5, 33587199) = 0 [ 284.013413][ T7228] loop0: detected capacity change from 0 to 4096 [ 284.025603][ T7228] NILFS (loop0): invalid segment: Checksum error in segment payload [ 284.033684][ T7228] NILFS (loop0): trying rollback from an earlier position [ 284.044861][ T7228] NILFS (loop0): recovery complete [ 284.050706][ T7229] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7228] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7228] exit_group(0) = ? [pid 7228] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7228, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1070", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1070", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1070/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1070/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1070/binderfs") = 0 umount2("./1070/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1070/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1070/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1070/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1070/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1070/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1070") = 0 mkdir("./1071", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7230 attached , child_tidptr=0x555555c06690) = 7230 [pid 7230] chdir("./1071") = 0 [pid 7230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7230] setpgid(0, 0) = 0 [pid 7230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7230] write(3, "1000", 4) = 4 [pid 7230] close(3) = 0 [pid 7230] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7230] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7230] memfd_create("syzkaller", 0) = 3 [pid 7230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7230] 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"..., 2097152) = 2097152 [pid 7230] munmap(0x7f320ee61000, 2097152) = 0 [pid 7230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7230] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7230] close(3) = 0 [pid 7230] mkdir("./file1", 0777) = 0 [pid 7230] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7230] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7230] chdir("./file1") = 0 [pid 7230] ioctl(4, LOOP_CLR_FD) = 0 [pid 7230] close(4) = 0 [pid 7230] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7230] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7230] ftruncate(5, 33587199) = 0 [ 284.243017][ T7230] loop0: detected capacity change from 0 to 4096 [ 284.254774][ T7230] NILFS (loop0): invalid segment: Checksum error in segment payload [ 284.263291][ T7230] NILFS (loop0): trying rollback from an earlier position [ 284.274795][ T7230] NILFS (loop0): recovery complete [ 284.280764][ T7231] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7230] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7230] exit_group(0) = ? [pid 7230] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7230, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1071", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1071", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1071/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1071/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1071/binderfs") = 0 umount2("./1071/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1071/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1071/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1071/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1071/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1071/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1071") = 0 mkdir("./1072", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7232 ./strace-static-x86_64: Process 7232 attached [pid 7232] chdir("./1072") = 0 [pid 7232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7232] setpgid(0, 0) = 0 [pid 7232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7232] write(3, "1000", 4) = 4 [pid 7232] close(3) = 0 [pid 7232] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7232] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7232] memfd_create("syzkaller", 0) = 3 [pid 7232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7232] 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"..., 2097152) = 2097152 [pid 7232] munmap(0x7f320ee61000, 2097152) = 0 [pid 7232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7232] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7232] close(3) = 0 [pid 7232] mkdir("./file1", 0777) = 0 [pid 7232] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7232] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7232] chdir("./file1") = 0 [pid 7232] ioctl(4, LOOP_CLR_FD) = 0 [pid 7232] close(4) = 0 [pid 7232] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7232] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7232] ftruncate(5, 33587199) = 0 [ 284.472995][ T7232] loop0: detected capacity change from 0 to 4096 [ 284.485394][ T7232] NILFS (loop0): invalid segment: Checksum error in segment payload [ 284.493693][ T7232] NILFS (loop0): trying rollback from an earlier position [ 284.505835][ T7232] NILFS (loop0): recovery complete [ 284.511684][ T7233] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7232] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7232] exit_group(0) = ? [pid 7232] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7232, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1072", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1072", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1072/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1072/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1072/binderfs") = 0 umount2("./1072/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1072/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1072/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1072/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1072/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1072/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1072") = 0 mkdir("./1073", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7234 ./strace-static-x86_64: Process 7234 attached [pid 7234] chdir("./1073") = 0 [pid 7234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7234] setpgid(0, 0) = 0 [pid 7234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7234] write(3, "1000", 4) = 4 [pid 7234] close(3) = 0 [pid 7234] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7234] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7234] memfd_create("syzkaller", 0) = 3 [pid 7234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7234] 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"..., 2097152) = 2097152 [pid 7234] munmap(0x7f320ee61000, 2097152) = 0 [pid 7234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7234] close(3) = 0 [pid 7234] mkdir("./file1", 0777) = 0 [pid 7234] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7234] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7234] chdir("./file1") = 0 [pid 7234] ioctl(4, LOOP_CLR_FD) = 0 [pid 7234] close(4) = 0 [pid 7234] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7234] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7234] ftruncate(5, 33587199) = 0 [ 284.704433][ T7234] loop0: detected capacity change from 0 to 4096 [ 284.716837][ T7234] NILFS (loop0): invalid segment: Checksum error in segment payload [ 284.725257][ T7234] NILFS (loop0): trying rollback from an earlier position [ 284.736457][ T7234] NILFS (loop0): recovery complete [ 284.742114][ T7235] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7234] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7234] exit_group(0) = ? [pid 7234] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7234, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1073", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1073", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1073/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1073/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1073/binderfs") = 0 umount2("./1073/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1073/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1073/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1073/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1073/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1073/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1073") = 0 mkdir("./1074", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7236 ./strace-static-x86_64: Process 7236 attached [pid 7236] chdir("./1074") = 0 [pid 7236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7236] setpgid(0, 0) = 0 [pid 7236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7236] write(3, "1000", 4) = 4 [pid 7236] close(3) = 0 [pid 7236] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7236] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7236] memfd_create("syzkaller", 0) = 3 [pid 7236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7236] 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"..., 2097152) = 2097152 [pid 7236] munmap(0x7f320ee61000, 2097152) = 0 [pid 7236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7236] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7236] close(3) = 0 [pid 7236] mkdir("./file1", 0777) = 0 [pid 7236] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7236] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7236] chdir("./file1") = 0 [pid 7236] ioctl(4, LOOP_CLR_FD) = 0 [pid 7236] close(4) = 0 [pid 7236] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7236] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7236] ftruncate(5, 33587199) = 0 [ 284.933520][ T7236] loop0: detected capacity change from 0 to 4096 [ 284.945480][ T7236] NILFS (loop0): invalid segment: Checksum error in segment payload [ 284.953532][ T7236] NILFS (loop0): trying rollback from an earlier position [ 284.964603][ T7236] NILFS (loop0): recovery complete [ 284.970416][ T7237] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7236] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7236] exit_group(0) = ? [pid 7236] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7236, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1074", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1074", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1074/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1074/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1074/binderfs") = 0 umount2("./1074/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1074/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1074/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1074/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1074/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1074/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1074") = 0 mkdir("./1075", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7238 ./strace-static-x86_64: Process 7238 attached [pid 7238] chdir("./1075") = 0 [pid 7238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7238] setpgid(0, 0) = 0 [pid 7238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7238] write(3, "1000", 4) = 4 [pid 7238] close(3) = 0 [pid 7238] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7238] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7238] memfd_create("syzkaller", 0) = 3 [pid 7238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7238] 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"..., 2097152) = 2097152 [pid 7238] munmap(0x7f320ee61000, 2097152) = 0 [pid 7238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7238] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7238] close(3) = 0 [pid 7238] mkdir("./file1", 0777) = 0 [pid 7238] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7238] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7238] chdir("./file1") = 0 [pid 7238] ioctl(4, LOOP_CLR_FD) = 0 [pid 7238] close(4) = 0 [pid 7238] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7238] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7238] ftruncate(5, 33587199) = 0 [ 285.164845][ T7238] loop0: detected capacity change from 0 to 4096 [ 285.177440][ T7238] NILFS (loop0): invalid segment: Checksum error in segment payload [ 285.185503][ T7238] NILFS (loop0): trying rollback from an earlier position [ 285.196704][ T7238] NILFS (loop0): recovery complete [ 285.202683][ T7239] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7238] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7238] exit_group(0) = ? [pid 7238] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7238, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1075", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1075", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1075/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1075/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1075/binderfs") = 0 umount2("./1075/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1075/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1075/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1075/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1075/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1075/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1075") = 0 mkdir("./1076", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7240 attached [pid 7240] chdir("./1076") = 0 [pid 7240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7240] setpgid(0, 0) = 0 [pid 7240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7240 [pid 7240] <... openat resumed>) = 3 [pid 7240] write(3, "1000", 4) = 4 [pid 7240] close(3) = 0 [pid 7240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7240] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7240] memfd_create("syzkaller", 0) = 3 [pid 7240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7240] 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"..., 2097152) = 2097152 [pid 7240] munmap(0x7f320ee61000, 2097152) = 0 [pid 7240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7240] close(3) = 0 [pid 7240] mkdir("./file1", 0777) = 0 [pid 7240] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7240] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7240] chdir("./file1") = 0 [pid 7240] ioctl(4, LOOP_CLR_FD) = 0 [pid 7240] close(4) = 0 [pid 7240] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7240] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7240] ftruncate(5, 33587199) = 0 [ 285.396826][ T7240] loop0: detected capacity change from 0 to 4096 [ 285.408537][ T7240] NILFS (loop0): invalid segment: Checksum error in segment payload [ 285.416701][ T7240] NILFS (loop0): trying rollback from an earlier position [ 285.427852][ T7240] NILFS (loop0): recovery complete [ 285.433622][ T7241] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7240] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7240] exit_group(0) = ? [pid 7240] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7240, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1076", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1076", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1076/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1076/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1076/binderfs") = 0 umount2("./1076/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1076/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1076/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1076/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1076/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1076/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1076") = 0 mkdir("./1077", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7242 attached , child_tidptr=0x555555c06690) = 7242 [pid 7242] chdir("./1077") = 0 [pid 7242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7242] setpgid(0, 0) = 0 [pid 7242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7242] write(3, "1000", 4) = 4 [pid 7242] close(3) = 0 [pid 7242] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7242] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7242] memfd_create("syzkaller", 0) = 3 [pid 7242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7242] 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"..., 2097152) = 2097152 [pid 7242] munmap(0x7f320ee61000, 2097152) = 0 [pid 7242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7242] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7242] close(3) = 0 [pid 7242] mkdir("./file1", 0777) = 0 [pid 7242] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7242] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7242] chdir("./file1") = 0 [pid 7242] ioctl(4, LOOP_CLR_FD) = 0 [pid 7242] close(4) = 0 [pid 7242] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7242] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7242] ftruncate(5, 33587199) = 0 [ 285.628751][ T7242] loop0: detected capacity change from 0 to 4096 [ 285.641922][ T7242] NILFS (loop0): invalid segment: Checksum error in segment payload [ 285.649944][ T7242] NILFS (loop0): trying rollback from an earlier position [ 285.661393][ T7242] NILFS (loop0): recovery complete [ 285.667212][ T7243] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7242] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7242] exit_group(0) = ? [pid 7242] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7242, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1077", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1077", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1077/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1077/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1077/binderfs") = 0 umount2("./1077/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1077/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1077/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1077/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1077/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1077/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1077") = 0 mkdir("./1078", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7244 attached , child_tidptr=0x555555c06690) = 7244 [pid 7244] chdir("./1078") = 0 [pid 7244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7244] setpgid(0, 0) = 0 [pid 7244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7244] write(3, "1000", 4) = 4 [pid 7244] close(3) = 0 [pid 7244] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7244] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7244] memfd_create("syzkaller", 0) = 3 [pid 7244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7244] 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"..., 2097152) = 2097152 [pid 7244] munmap(0x7f320ee61000, 2097152) = 0 [pid 7244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7244] close(3) = 0 [pid 7244] mkdir("./file1", 0777) = 0 [pid 7244] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7244] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7244] chdir("./file1") = 0 [pid 7244] ioctl(4, LOOP_CLR_FD) = 0 [pid 7244] close(4) = 0 [pid 7244] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7244] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7244] ftruncate(5, 33587199) = 0 [ 285.858943][ T7244] loop0: detected capacity change from 0 to 4096 [ 285.871802][ T7244] NILFS (loop0): invalid segment: Checksum error in segment payload [ 285.879875][ T7244] NILFS (loop0): trying rollback from an earlier position [ 285.891120][ T7244] NILFS (loop0): recovery complete [ 285.896843][ T7245] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7244] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7244] exit_group(0) = ? [pid 7244] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7244, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1078", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1078", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1078/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1078/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1078/binderfs") = 0 umount2("./1078/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1078/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1078/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1078/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1078/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1078/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1078") = 0 mkdir("./1079", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7246 attached [pid 7246] chdir("./1079") = 0 [pid 7246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7246 [pid 7246] setpgid(0, 0) = 0 [pid 7246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7246] write(3, "1000", 4) = 4 [pid 7246] close(3) = 0 [pid 7246] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7246] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7246] memfd_create("syzkaller", 0) = 3 [pid 7246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7246] 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"..., 2097152) = 2097152 [pid 7246] munmap(0x7f320ee61000, 2097152) = 0 [pid 7246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7246] close(3) = 0 [pid 7246] mkdir("./file1", 0777) = 0 [pid 7246] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7246] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7246] chdir("./file1") = 0 [pid 7246] ioctl(4, LOOP_CLR_FD) = 0 [pid 7246] close(4) = 0 [pid 7246] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7246] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7246] ftruncate(5, 33587199) = 0 [ 286.087579][ T7246] loop0: detected capacity change from 0 to 4096 [ 286.101508][ T7246] NILFS (loop0): invalid segment: Checksum error in segment payload [ 286.109523][ T7246] NILFS (loop0): trying rollback from an earlier position [ 286.120821][ T7246] NILFS (loop0): recovery complete [ 286.126670][ T7247] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7246] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7246] exit_group(0) = ? [pid 7246] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7246, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1079", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1079", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1079/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1079/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1079/binderfs") = 0 umount2("./1079/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1079/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1079/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1079/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1079/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1079/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1079") = 0 mkdir("./1080", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7248 attached , child_tidptr=0x555555c06690) = 7248 [pid 7248] chdir("./1080") = 0 [pid 7248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7248] setpgid(0, 0) = 0 [pid 7248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7248] write(3, "1000", 4) = 4 [pid 7248] close(3) = 0 [pid 7248] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7248] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7248] memfd_create("syzkaller", 0) = 3 [pid 7248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7248] 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"..., 2097152) = 2097152 [pid 7248] munmap(0x7f320ee61000, 2097152) = 0 [pid 7248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7248] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7248] close(3) = 0 [pid 7248] mkdir("./file1", 0777) = 0 [pid 7248] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7248] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7248] chdir("./file1") = 0 [pid 7248] ioctl(4, LOOP_CLR_FD) = 0 [pid 7248] close(4) = 0 [pid 7248] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7248] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7248] ftruncate(5, 33587199) = 0 [ 286.317324][ T7248] loop0: detected capacity change from 0 to 4096 [ 286.330351][ T7248] NILFS (loop0): invalid segment: Checksum error in segment payload [ 286.338431][ T7248] NILFS (loop0): trying rollback from an earlier position [ 286.350313][ T7248] NILFS (loop0): recovery complete [ 286.356015][ T7249] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7248] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7248] exit_group(0) = ? [pid 7248] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7248, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1080", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1080", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1080/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1080/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1080/binderfs") = 0 umount2("./1080/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1080/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1080/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1080/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1080/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1080/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1080") = 0 mkdir("./1081", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7250 ./strace-static-x86_64: Process 7250 attached [pid 7250] chdir("./1081") = 0 [pid 7250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7250] setpgid(0, 0) = 0 [pid 7250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7250] write(3, "1000", 4) = 4 [pid 7250] close(3) = 0 [pid 7250] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7250] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7250] memfd_create("syzkaller", 0) = 3 [pid 7250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7250] 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"..., 2097152) = 2097152 [pid 7250] munmap(0x7f320ee61000, 2097152) = 0 [pid 7250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7250] close(3) = 0 [pid 7250] mkdir("./file1", 0777) = 0 [pid 7250] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7250] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7250] chdir("./file1") = 0 [pid 7250] ioctl(4, LOOP_CLR_FD) = 0 [pid 7250] close(4) = 0 [pid 7250] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7250] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7250] ftruncate(5, 33587199) = 0 [ 286.554652][ T7250] loop0: detected capacity change from 0 to 4096 [ 286.567157][ T7250] NILFS (loop0): invalid segment: Checksum error in segment payload [ 286.575303][ T7250] NILFS (loop0): trying rollback from an earlier position [ 286.586895][ T7250] NILFS (loop0): recovery complete [ 286.592665][ T7251] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7250] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7250] exit_group(0) = ? [pid 7250] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7250, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1081", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1081", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1081/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1081/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1081/binderfs") = 0 umount2("./1081/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1081/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1081/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1081/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1081/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1081/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1081") = 0 mkdir("./1082", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7252 ./strace-static-x86_64: Process 7252 attached [pid 7252] chdir("./1082") = 0 [pid 7252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7252] setpgid(0, 0) = 0 [pid 7252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7252] write(3, "1000", 4) = 4 [pid 7252] close(3) = 0 [pid 7252] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7252] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7252] memfd_create("syzkaller", 0) = 3 [pid 7252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7252] 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"..., 2097152) = 2097152 [pid 7252] munmap(0x7f320ee61000, 2097152) = 0 [pid 7252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7252] close(3) = 0 [pid 7252] mkdir("./file1", 0777) = 0 [pid 7252] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7252] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7252] chdir("./file1") = 0 [pid 7252] ioctl(4, LOOP_CLR_FD) = 0 [pid 7252] close(4) = 0 [pid 7252] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7252] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7252] ftruncate(5, 33587199) = 0 [ 286.787168][ T7252] loop0: detected capacity change from 0 to 4096 [ 286.800465][ T7252] NILFS (loop0): invalid segment: Checksum error in segment payload [ 286.808509][ T7252] NILFS (loop0): trying rollback from an earlier position [ 286.820135][ T7252] NILFS (loop0): recovery complete [ 286.825993][ T7253] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7252] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7252] exit_group(0) = ? [pid 7252] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7252, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1082", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1082", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1082/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1082/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1082/binderfs") = 0 umount2("./1082/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1082/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1082/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1082/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1082/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1082/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1082") = 0 mkdir("./1083", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7254 attached , child_tidptr=0x555555c06690) = 7254 [pid 7254] chdir("./1083") = 0 [pid 7254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7254] setpgid(0, 0) = 0 [pid 7254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7254] write(3, "1000", 4) = 4 [pid 7254] close(3) = 0 [pid 7254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7254] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7254] memfd_create("syzkaller", 0) = 3 [pid 7254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7254] 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"..., 2097152) = 2097152 [pid 7254] munmap(0x7f320ee61000, 2097152) = 0 [pid 7254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7254] close(3) = 0 [pid 7254] mkdir("./file1", 0777) = 0 [pid 7254] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7254] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7254] chdir("./file1") = 0 [pid 7254] ioctl(4, LOOP_CLR_FD) = 0 [pid 7254] close(4) = 0 [pid 7254] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7254] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7254] ftruncate(5, 33587199) = 0 [ 287.027024][ T7254] loop0: detected capacity change from 0 to 4096 [ 287.040045][ T7254] NILFS (loop0): invalid segment: Checksum error in segment payload [ 287.048200][ T7254] NILFS (loop0): trying rollback from an earlier position [ 287.059782][ T7254] NILFS (loop0): recovery complete [ 287.065503][ T7255] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7254] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7254] exit_group(0) = ? [pid 7254] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7254, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1083", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1083", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1083/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1083/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1083/binderfs") = 0 umount2("./1083/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1083/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1083/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1083/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1083/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1083/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1083") = 0 mkdir("./1084", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7256 ./strace-static-x86_64: Process 7256 attached [pid 7256] chdir("./1084") = 0 [pid 7256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7256] setpgid(0, 0) = 0 [pid 7256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7256] write(3, "1000", 4) = 4 [pid 7256] close(3) = 0 [pid 7256] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7256] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7256] memfd_create("syzkaller", 0) = 3 [pid 7256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7256] 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"..., 2097152) = 2097152 [pid 7256] munmap(0x7f320ee61000, 2097152) = 0 [pid 7256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7256] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7256] close(3) = 0 [pid 7256] mkdir("./file1", 0777) = 0 [pid 7256] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7256] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7256] chdir("./file1") = 0 [pid 7256] ioctl(4, LOOP_CLR_FD) = 0 [pid 7256] close(4) = 0 [pid 7256] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7256] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7256] ftruncate(5, 33587199) = 0 [ 287.265174][ T7256] loop0: detected capacity change from 0 to 4096 [ 287.277584][ T7256] NILFS (loop0): invalid segment: Checksum error in segment payload [ 287.285871][ T7256] NILFS (loop0): trying rollback from an earlier position [ 287.296974][ T7256] NILFS (loop0): recovery complete [ 287.302750][ T7257] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7256] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7256] exit_group(0) = ? [pid 7256] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7256, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1084", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1084", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1084/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1084/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1084/binderfs") = 0 umount2("./1084/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1084/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1084/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1084/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1084/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1084/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1084") = 0 mkdir("./1085", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7258 ./strace-static-x86_64: Process 7258 attached [pid 7258] chdir("./1085") = 0 [pid 7258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7258] setpgid(0, 0) = 0 [pid 7258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7258] write(3, "1000", 4) = 4 [pid 7258] close(3) = 0 [pid 7258] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7258] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7258] memfd_create("syzkaller", 0) = 3 [pid 7258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7258] 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"..., 2097152) = 2097152 [pid 7258] munmap(0x7f320ee61000, 2097152) = 0 [pid 7258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7258] close(3) = 0 [pid 7258] mkdir("./file1", 0777) = 0 [pid 7258] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7258] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7258] chdir("./file1") = 0 [pid 7258] ioctl(4, LOOP_CLR_FD) = 0 [pid 7258] close(4) = 0 [pid 7258] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7258] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7258] ftruncate(5, 33587199) = 0 [ 287.501202][ T7258] loop0: detected capacity change from 0 to 4096 [ 287.514125][ T7258] NILFS (loop0): invalid segment: Checksum error in segment payload [ 287.522193][ T7258] NILFS (loop0): trying rollback from an earlier position [ 287.533208][ T7258] NILFS (loop0): recovery complete [ 287.539016][ T7259] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7258] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7258] exit_group(0) = ? [pid 7258] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7258, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1085", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1085", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1085/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1085/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1085/binderfs") = 0 umount2("./1085/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1085/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1085/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1085/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1085/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1085/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1085") = 0 mkdir("./1086", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7260 attached , child_tidptr=0x555555c06690) = 7260 [pid 7260] chdir("./1086") = 0 [pid 7260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7260] setpgid(0, 0) = 0 [pid 7260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7260] write(3, "1000", 4) = 4 [pid 7260] close(3) = 0 [pid 7260] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7260] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7260] memfd_create("syzkaller", 0) = 3 [pid 7260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7260] 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"..., 2097152) = 2097152 [pid 7260] munmap(0x7f320ee61000, 2097152) = 0 [pid 7260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7260] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7260] close(3) = 0 [pid 7260] mkdir("./file1", 0777) = 0 [pid 7260] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7260] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7260] chdir("./file1") = 0 [pid 7260] ioctl(4, LOOP_CLR_FD) = 0 [pid 7260] close(4) = 0 [pid 7260] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7260] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7260] ftruncate(5, 33587199) = 0 [ 287.737562][ T7260] loop0: detected capacity change from 0 to 4096 [ 287.750772][ T7260] NILFS (loop0): invalid segment: Checksum error in segment payload [ 287.758868][ T7260] NILFS (loop0): trying rollback from an earlier position [ 287.770035][ T7260] NILFS (loop0): recovery complete [ 287.775821][ T7261] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7260] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7260] exit_group(0) = ? [pid 7260] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7260, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1086", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1086", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1086/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1086/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1086/binderfs") = 0 umount2("./1086/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1086/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1086/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1086/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1086/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1086/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1086") = 0 mkdir("./1087", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7262 attached , child_tidptr=0x555555c06690) = 7262 [pid 7262] chdir("./1087") = 0 [pid 7262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7262] setpgid(0, 0) = 0 [pid 7262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7262] write(3, "1000", 4) = 4 [pid 7262] close(3) = 0 [pid 7262] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7262] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7262] memfd_create("syzkaller", 0) = 3 [pid 7262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7262] 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"..., 2097152) = 2097152 [pid 7262] munmap(0x7f320ee61000, 2097152) = 0 [pid 7262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7262] close(3) = 0 [pid 7262] mkdir("./file1", 0777) = 0 [pid 7262] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7262] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7262] chdir("./file1") = 0 [pid 7262] ioctl(4, LOOP_CLR_FD) = 0 [pid 7262] close(4) = 0 [pid 7262] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7262] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7262] ftruncate(5, 33587199) = 0 [ 287.967993][ T7262] loop0: detected capacity change from 0 to 4096 [ 287.980050][ T7262] NILFS (loop0): invalid segment: Checksum error in segment payload [ 287.988215][ T7262] NILFS (loop0): trying rollback from an earlier position [ 287.999101][ T7262] NILFS (loop0): recovery complete [ 288.005116][ T7263] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7262] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7262] exit_group(0) = ? [pid 7262] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7262, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1087", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1087", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1087/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1087/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1087/binderfs") = 0 umount2("./1087/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1087/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1087/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1087/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1087/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1087/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1087") = 0 mkdir("./1088", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7264 ./strace-static-x86_64: Process 7264 attached [pid 7264] chdir("./1088") = 0 [pid 7264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7264] setpgid(0, 0) = 0 [pid 7264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7264] write(3, "1000", 4) = 4 [pid 7264] close(3) = 0 [pid 7264] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7264] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7264] memfd_create("syzkaller", 0) = 3 [pid 7264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7264] 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"..., 2097152) = 2097152 [pid 7264] munmap(0x7f320ee61000, 2097152) = 0 [pid 7264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7264] close(3) = 0 [pid 7264] mkdir("./file1", 0777) = 0 [pid 7264] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7264] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7264] chdir("./file1") = 0 [pid 7264] ioctl(4, LOOP_CLR_FD) = 0 [pid 7264] close(4) = 0 [pid 7264] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7264] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7264] ftruncate(5, 33587199) = 0 [ 288.206144][ T7264] loop0: detected capacity change from 0 to 4096 [ 288.218313][ T7264] NILFS (loop0): invalid segment: Checksum error in segment payload [ 288.226480][ T7264] NILFS (loop0): trying rollback from an earlier position [ 288.237612][ T7264] NILFS (loop0): recovery complete [ 288.243375][ T7265] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7264] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7264] exit_group(0) = ? [pid 7264] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7264, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1088", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1088", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1088/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1088/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1088/binderfs") = 0 umount2("./1088/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1088/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1088/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1088/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1088/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1088/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1088") = 0 mkdir("./1089", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7266 ./strace-static-x86_64: Process 7266 attached [pid 7266] chdir("./1089") = 0 [pid 7266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7266] setpgid(0, 0) = 0 [pid 7266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7266] write(3, "1000", 4) = 4 [pid 7266] close(3) = 0 [pid 7266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7266] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7266] memfd_create("syzkaller", 0) = 3 [pid 7266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7266] 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"..., 2097152) = 2097152 [pid 7266] munmap(0x7f320ee61000, 2097152) = 0 [pid 7266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7266] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7266] close(3) = 0 [pid 7266] mkdir("./file1", 0777) = 0 [pid 7266] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7266] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7266] chdir("./file1") = 0 [pid 7266] ioctl(4, LOOP_CLR_FD) = 0 [pid 7266] close(4) = 0 [pid 7266] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7266] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7266] ftruncate(5, 33587199) = 0 [ 288.439636][ T7266] loop0: detected capacity change from 0 to 4096 [ 288.453048][ T7266] NILFS (loop0): invalid segment: Checksum error in segment payload [ 288.461204][ T7266] NILFS (loop0): trying rollback from an earlier position [ 288.471848][ T7266] NILFS (loop0): recovery complete [ 288.477541][ T7267] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7266] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7266] exit_group(0) = ? [pid 7266] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7266, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1089", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1089", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1089/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1089/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1089/binderfs") = 0 umount2("./1089/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1089/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1089/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1089/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1089/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1089/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1089") = 0 mkdir("./1090", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7268 ./strace-static-x86_64: Process 7268 attached [pid 7268] chdir("./1090") = 0 [pid 7268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7268] setpgid(0, 0) = 0 [pid 7268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7268] write(3, "1000", 4) = 4 [pid 7268] close(3) = 0 [pid 7268] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7268] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7268] memfd_create("syzkaller", 0) = 3 [pid 7268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7268] 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"..., 2097152) = 2097152 [pid 7268] munmap(0x7f320ee61000, 2097152) = 0 [pid 7268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7268] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7268] close(3) = 0 [pid 7268] mkdir("./file1", 0777) = 0 [pid 7268] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7268] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7268] chdir("./file1") = 0 [pid 7268] ioctl(4, LOOP_CLR_FD) = 0 [pid 7268] close(4) = 0 [pid 7268] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7268] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7268] ftruncate(5, 33587199) = 0 [ 288.668142][ T7268] loop0: detected capacity change from 0 to 4096 [ 288.680799][ T7268] NILFS (loop0): invalid segment: Checksum error in segment payload [ 288.688855][ T7268] NILFS (loop0): trying rollback from an earlier position [ 288.700574][ T7268] NILFS (loop0): recovery complete [ 288.706451][ T7269] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7268] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7268] exit_group(0) = ? [pid 7268] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7268, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./1090", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1090", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1090/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1090/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1090/binderfs") = 0 umount2("./1090/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1090/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1090/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1090/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1090/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1090/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1090") = 0 mkdir("./1091", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7270 ./strace-static-x86_64: Process 7270 attached [pid 7270] chdir("./1091") = 0 [pid 7270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7270] setpgid(0, 0) = 0 [pid 7270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7270] write(3, "1000", 4) = 4 [pid 7270] close(3) = 0 [pid 7270] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7270] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7270] memfd_create("syzkaller", 0) = 3 [pid 7270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7270] 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"..., 2097152) = 2097152 [pid 7270] munmap(0x7f320ee61000, 2097152) = 0 [pid 7270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7270] close(3) = 0 [pid 7270] mkdir("./file1", 0777) = 0 [pid 7270] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7270] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7270] chdir("./file1") = 0 [pid 7270] ioctl(4, LOOP_CLR_FD) = 0 [pid 7270] close(4) = 0 [pid 7270] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7270] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7270] ftruncate(5, 33587199) = 0 [ 288.899730][ T7270] loop0: detected capacity change from 0 to 4096 [ 288.913764][ T7270] NILFS (loop0): invalid segment: Checksum error in segment payload [ 288.921920][ T7270] NILFS (loop0): trying rollback from an earlier position [ 288.933245][ T7270] NILFS (loop0): recovery complete [ 288.938913][ T7271] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7270] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7270] exit_group(0) = ? [pid 7270] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7270, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1091", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1091", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1091/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1091/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1091/binderfs") = 0 umount2("./1091/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1091/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1091/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1091/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1091/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1091/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1091") = 0 mkdir("./1092", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7272 attached , child_tidptr=0x555555c06690) = 7272 [pid 7272] chdir("./1092") = 0 [pid 7272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7272] setpgid(0, 0) = 0 [pid 7272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7272] write(3, "1000", 4) = 4 [pid 7272] close(3) = 0 [pid 7272] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7272] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7272] memfd_create("syzkaller", 0) = 3 [pid 7272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7272] 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"..., 2097152) = 2097152 [pid 7272] munmap(0x7f320ee61000, 2097152) = 0 [pid 7272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7272] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7272] close(3) = 0 [pid 7272] mkdir("./file1", 0777) = 0 [pid 7272] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7272] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7272] chdir("./file1") = 0 [pid 7272] ioctl(4, LOOP_CLR_FD) = 0 [pid 7272] close(4) = 0 [pid 7272] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7272] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7272] ftruncate(5, 33587199) = 0 [ 289.137918][ T7272] loop0: detected capacity change from 0 to 4096 [ 289.150025][ T7272] NILFS (loop0): invalid segment: Checksum error in segment payload [ 289.158325][ T7272] NILFS (loop0): trying rollback from an earlier position [ 289.169566][ T7272] NILFS (loop0): recovery complete [ 289.175504][ T7273] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7272] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7272] exit_group(0) = ? [pid 7272] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7272, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1092", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1092", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1092/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1092/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1092/binderfs") = 0 umount2("./1092/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1092/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1092/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1092/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1092/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1092/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1092") = 0 mkdir("./1093", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7274 attached , child_tidptr=0x555555c06690) = 7274 [pid 7274] chdir("./1093") = 0 [pid 7274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7274] setpgid(0, 0) = 0 [pid 7274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7274] write(3, "1000", 4) = 4 [pid 7274] close(3) = 0 [pid 7274] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7274] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7274] memfd_create("syzkaller", 0) = 3 [pid 7274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7274] 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"..., 2097152) = 2097152 [pid 7274] munmap(0x7f320ee61000, 2097152) = 0 [pid 7274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7274] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7274] close(3) = 0 [pid 7274] mkdir("./file1", 0777) = 0 [pid 7274] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7274] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7274] chdir("./file1") = 0 [pid 7274] ioctl(4, LOOP_CLR_FD) = 0 [pid 7274] close(4) = 0 [pid 7274] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7274] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7274] ftruncate(5, 33587199) = 0 [ 289.368369][ T7274] loop0: detected capacity change from 0 to 4096 [ 289.381083][ T7274] NILFS (loop0): invalid segment: Checksum error in segment payload [ 289.389092][ T7274] NILFS (loop0): trying rollback from an earlier position [ 289.400265][ T7274] NILFS (loop0): recovery complete [ 289.406025][ T7275] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7274] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7274] exit_group(0) = ? [pid 7274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7274, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1093", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1093", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1093/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1093/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1093/binderfs") = 0 umount2("./1093/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1093/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1093/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1093/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1093/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1093/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1093") = 0 mkdir("./1094", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7276 ./strace-static-x86_64: Process 7276 attached [pid 7276] chdir("./1094") = 0 [pid 7276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7276] setpgid(0, 0) = 0 [pid 7276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7276] write(3, "1000", 4) = 4 [pid 7276] close(3) = 0 [pid 7276] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7276] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7276] memfd_create("syzkaller", 0) = 3 [pid 7276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7276] 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"..., 2097152) = 2097152 [pid 7276] munmap(0x7f320ee61000, 2097152) = 0 [pid 7276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7276] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7276] close(3) = 0 [pid 7276] mkdir("./file1", 0777) = 0 [pid 7276] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7276] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7276] chdir("./file1") = 0 [pid 7276] ioctl(4, LOOP_CLR_FD) = 0 [pid 7276] close(4) = 0 [pid 7276] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7276] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7276] ftruncate(5, 33587199) = 0 [ 289.608919][ T7276] loop0: detected capacity change from 0 to 4096 [ 289.620920][ T7276] NILFS (loop0): invalid segment: Checksum error in segment payload [ 289.628937][ T7276] NILFS (loop0): trying rollback from an earlier position [ 289.640600][ T7276] NILFS (loop0): recovery complete [ 289.646276][ T7277] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7276] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7276] exit_group(0) = ? [pid 7276] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7276, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1094", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1094", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1094/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1094/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1094/binderfs") = 0 umount2("./1094/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1094/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1094/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1094/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1094/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1094/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1094") = 0 mkdir("./1095", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7278 attached [pid 7278] chdir("./1095") = 0 [pid 7278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7278] setpgid(0, 0) = 0 [pid 7278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7278 [pid 7278] <... openat resumed>) = 3 [pid 7278] write(3, "1000", 4) = 4 [pid 7278] close(3) = 0 [pid 7278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7278] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7278] memfd_create("syzkaller", 0) = 3 [pid 7278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7278] 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"..., 2097152) = 2097152 [pid 7278] munmap(0x7f320ee61000, 2097152) = 0 [pid 7278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7278] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7278] close(3) = 0 [pid 7278] mkdir("./file1", 0777) = 0 [pid 7278] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7278] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7278] chdir("./file1") = 0 [pid 7278] ioctl(4, LOOP_CLR_FD) = 0 [pid 7278] close(4) = 0 [pid 7278] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7278] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7278] ftruncate(5, 33587199) = 0 [ 289.843892][ T7278] loop0: detected capacity change from 0 to 4096 [ 289.856158][ T7278] NILFS (loop0): invalid segment: Checksum error in segment payload [ 289.864222][ T7278] NILFS (loop0): trying rollback from an earlier position [ 289.875516][ T7278] NILFS (loop0): recovery complete [ 289.881439][ T7279] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7278] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7278] exit_group(0) = ? [pid 7278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7278, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1095", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1095", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1095/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1095/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1095/binderfs") = 0 umount2("./1095/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1095/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1095/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1095/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1095/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1095/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1095") = 0 mkdir("./1096", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7280 attached , child_tidptr=0x555555c06690) = 7280 [pid 7280] chdir("./1096") = 0 [pid 7280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7280] setpgid(0, 0) = 0 [pid 7280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7280] write(3, "1000", 4) = 4 [pid 7280] close(3) = 0 [pid 7280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7280] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7280] memfd_create("syzkaller", 0) = 3 [pid 7280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7280] 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"..., 2097152) = 2097152 [pid 7280] munmap(0x7f320ee61000, 2097152) = 0 [pid 7280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7280] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7280] close(3) = 0 [pid 7280] mkdir("./file1", 0777) = 0 [pid 7280] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7280] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7280] chdir("./file1") = 0 [pid 7280] ioctl(4, LOOP_CLR_FD) = 0 [pid 7280] close(4) = 0 [pid 7280] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7280] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7280] ftruncate(5, 33587199) = 0 [ 290.073484][ T7280] loop0: detected capacity change from 0 to 4096 [ 290.086153][ T7280] NILFS (loop0): invalid segment: Checksum error in segment payload [ 290.094298][ T7280] NILFS (loop0): trying rollback from an earlier position [ 290.105850][ T7280] NILFS (loop0): recovery complete [ 290.111530][ T7281] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7280] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7280] exit_group(0) = ? [pid 7280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7280, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1096", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1096", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1096/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1096/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1096/binderfs") = 0 umount2("./1096/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1096/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1096/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1096/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1096/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1096/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1096") = 0 mkdir("./1097", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7282 ./strace-static-x86_64: Process 7282 attached [pid 7282] chdir("./1097") = 0 [pid 7282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7282] setpgid(0, 0) = 0 [pid 7282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7282] write(3, "1000", 4) = 4 [pid 7282] close(3) = 0 [pid 7282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7282] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7282] memfd_create("syzkaller", 0) = 3 [pid 7282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7282] 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"..., 2097152) = 2097152 [pid 7282] munmap(0x7f320ee61000, 2097152) = 0 [pid 7282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7282] close(3) = 0 [pid 7282] mkdir("./file1", 0777) = 0 [pid 7282] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7282] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7282] chdir("./file1") = 0 [pid 7282] ioctl(4, LOOP_CLR_FD) = 0 [pid 7282] close(4) = 0 [pid 7282] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7282] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7282] ftruncate(5, 33587199) = 0 [ 290.305480][ T7282] loop0: detected capacity change from 0 to 4096 [ 290.318615][ T7282] NILFS (loop0): invalid segment: Checksum error in segment payload [ 290.326914][ T7282] NILFS (loop0): trying rollback from an earlier position [ 290.338457][ T7282] NILFS (loop0): recovery complete [ 290.344293][ T7283] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7282] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7282] exit_group(0) = ? [pid 7282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7282, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./1097", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1097", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1097/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1097/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1097/binderfs") = 0 umount2("./1097/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1097/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1097/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1097/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1097/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1097/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1097") = 0 mkdir("./1098", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7284 attached , child_tidptr=0x555555c06690) = 7284 [pid 7284] chdir("./1098") = 0 [pid 7284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7284] setpgid(0, 0) = 0 [pid 7284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7284] write(3, "1000", 4) = 4 [pid 7284] close(3) = 0 [pid 7284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7284] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7284] memfd_create("syzkaller", 0) = 3 [pid 7284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7284] 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"..., 2097152) = 2097152 [pid 7284] munmap(0x7f320ee61000, 2097152) = 0 [pid 7284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7284] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7284] close(3) = 0 [pid 7284] mkdir("./file1", 0777) = 0 [pid 7284] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7284] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7284] chdir("./file1") = 0 [pid 7284] ioctl(4, LOOP_CLR_FD) = 0 [pid 7284] close(4) = 0 [pid 7284] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7284] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7284] ftruncate(5, 33587199) = 0 [ 290.539131][ T7284] loop0: detected capacity change from 0 to 4096 [ 290.551609][ T7284] NILFS (loop0): invalid segment: Checksum error in segment payload [ 290.559619][ T7284] NILFS (loop0): trying rollback from an earlier position [ 290.570991][ T7284] NILFS (loop0): recovery complete [ 290.576604][ T7285] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7284] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7284] exit_group(0) = ? [pid 7284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7284, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1098", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1098", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1098/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1098/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1098/binderfs") = 0 umount2("./1098/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1098/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1098/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1098/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1098/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1098/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1098") = 0 mkdir("./1099", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7286 ./strace-static-x86_64: Process 7286 attached [pid 7286] chdir("./1099") = 0 [pid 7286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7286] setpgid(0, 0) = 0 [pid 7286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7286] write(3, "1000", 4) = 4 [pid 7286] close(3) = 0 [pid 7286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7286] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7286] memfd_create("syzkaller", 0) = 3 [pid 7286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7286] 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"..., 2097152) = 2097152 [pid 7286] munmap(0x7f320ee61000, 2097152) = 0 [pid 7286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7286] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7286] close(3) = 0 [pid 7286] mkdir("./file1", 0777) = 0 [pid 7286] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7286] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7286] chdir("./file1") = 0 [pid 7286] ioctl(4, LOOP_CLR_FD) = 0 [pid 7286] close(4) = 0 [pid 7286] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7286] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7286] ftruncate(5, 33587199) = 0 [ 290.748938][ T7286] loop0: detected capacity change from 0 to 4096 [ 290.762103][ T7286] NILFS (loop0): invalid segment: Checksum error in segment payload [ 290.770207][ T7286] NILFS (loop0): trying rollback from an earlier position [ 290.781448][ T7286] NILFS (loop0): recovery complete [ 290.787163][ T7287] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7286] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7286] exit_group(0) = ? [pid 7286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7286, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1099", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1099", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1099/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1099/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1099/binderfs") = 0 umount2("./1099/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1099/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1099/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1099/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1099/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1099/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1099") = 0 mkdir("./1100", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7288 attached , child_tidptr=0x555555c06690) = 7288 [pid 7288] chdir("./1100") = 0 [pid 7288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7288] setpgid(0, 0) = 0 [pid 7288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7288] write(3, "1000", 4) = 4 [pid 7288] close(3) = 0 [pid 7288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7288] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7288] memfd_create("syzkaller", 0) = 3 [pid 7288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7288] 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"..., 2097152) = 2097152 [pid 7288] munmap(0x7f320ee61000, 2097152) = 0 [pid 7288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7288] close(3) = 0 [pid 7288] mkdir("./file1", 0777) = 0 [pid 7288] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7288] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7288] chdir("./file1") = 0 [pid 7288] ioctl(4, LOOP_CLR_FD) = 0 [pid 7288] close(4) = 0 [pid 7288] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7288] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7288] ftruncate(5, 33587199) = 0 [ 290.984639][ T7288] loop0: detected capacity change from 0 to 4096 [ 290.996640][ T7288] NILFS (loop0): invalid segment: Checksum error in segment payload [ 291.004684][ T7288] NILFS (loop0): trying rollback from an earlier position [ 291.015935][ T7288] NILFS (loop0): recovery complete [ 291.021593][ T7289] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7288] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7288] exit_group(0) = ? [pid 7288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7288, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1100/binderfs") = 0 umount2("./1100/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1100/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1100/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1100/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1100/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1100/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1100") = 0 mkdir("./1101", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7290 ./strace-static-x86_64: Process 7290 attached [pid 7290] chdir("./1101") = 0 [pid 7290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7290] setpgid(0, 0) = 0 [pid 7290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7290] write(3, "1000", 4) = 4 [pid 7290] close(3) = 0 [pid 7290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7290] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7290] memfd_create("syzkaller", 0) = 3 [pid 7290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7290] 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"..., 2097152) = 2097152 [pid 7290] munmap(0x7f320ee61000, 2097152) = 0 [pid 7290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7290] close(3) = 0 [pid 7290] mkdir("./file1", 0777) = 0 [pid 7290] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7290] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7290] chdir("./file1") = 0 [pid 7290] ioctl(4, LOOP_CLR_FD) = 0 [pid 7290] close(4) = 0 [pid 7290] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7290] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7290] ftruncate(5, 33587199) = 0 [ 291.207429][ T7290] loop0: detected capacity change from 0 to 4096 [ 291.221089][ T7290] NILFS (loop0): invalid segment: Checksum error in segment payload [ 291.229124][ T7290] NILFS (loop0): trying rollback from an earlier position [ 291.240722][ T7290] NILFS (loop0): recovery complete [ 291.246412][ T7291] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7290] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7290] exit_group(0) = ? [pid 7290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7290, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1101/binderfs") = 0 umount2("./1101/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1101/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1101/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1101/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1101/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1101/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1101") = 0 mkdir("./1102", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7292 attached [pid 7292] chdir("./1102") = 0 [pid 7292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7292] setpgid(0, 0) = 0 [pid 7292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7292] write(3, "1000", 4) = 4 [pid 7292] close(3) = 0 [pid 7292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7292] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7292] memfd_create("syzkaller", 0) = 3 [pid 7292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7292 [pid 7292] 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"..., 2097152) = 2097152 [pid 7292] munmap(0x7f320ee61000, 2097152) = 0 [pid 7292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7292] close(3) = 0 [pid 7292] mkdir("./file1", 0777) = 0 [pid 7292] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7292] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7292] chdir("./file1") = 0 [pid 7292] ioctl(4, LOOP_CLR_FD) = 0 [pid 7292] close(4) = 0 [pid 7292] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7292] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7292] ftruncate(5, 33587199) = 0 [ 291.436265][ T7292] loop0: detected capacity change from 0 to 4096 [ 291.448906][ T7292] NILFS (loop0): invalid segment: Checksum error in segment payload [ 291.457151][ T7292] NILFS (loop0): trying rollback from an earlier position [ 291.468679][ T7292] NILFS (loop0): recovery complete [ 291.474536][ T7293] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7292] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7292] exit_group(0) = ? [pid 7292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7292, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1102/binderfs") = 0 umount2("./1102/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1102/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1102/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1102/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1102/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1102/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1102") = 0 mkdir("./1103", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7294 ./strace-static-x86_64: Process 7294 attached [pid 7294] chdir("./1103") = 0 [pid 7294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7294] setpgid(0, 0) = 0 [pid 7294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7294] write(3, "1000", 4) = 4 [pid 7294] close(3) = 0 [pid 7294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7294] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7294] memfd_create("syzkaller", 0) = 3 [pid 7294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7294] 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"..., 2097152) = 2097152 [pid 7294] munmap(0x7f320ee61000, 2097152) = 0 [pid 7294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7294] close(3) = 0 [pid 7294] mkdir("./file1", 0777) = 0 [pid 7294] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7294] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7294] chdir("./file1") = 0 [pid 7294] ioctl(4, LOOP_CLR_FD) = 0 [pid 7294] close(4) = 0 [pid 7294] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7294] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7294] ftruncate(5, 33587199) = 0 [ 291.661505][ T7294] loop0: detected capacity change from 0 to 4096 [ 291.673189][ T7294] NILFS (loop0): invalid segment: Checksum error in segment payload [ 291.681353][ T7294] NILFS (loop0): trying rollback from an earlier position [ 291.692694][ T7294] NILFS (loop0): recovery complete [ 291.698416][ T7295] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7294] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7294] exit_group(0) = ? [pid 7294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7294, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1103/binderfs") = 0 umount2("./1103/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1103/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1103/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1103/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1103/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1103/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1103") = 0 mkdir("./1104", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7296 ./strace-static-x86_64: Process 7296 attached [pid 7296] chdir("./1104") = 0 [pid 7296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7296] setpgid(0, 0) = 0 [pid 7296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7296] write(3, "1000", 4) = 4 [pid 7296] close(3) = 0 [pid 7296] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7296] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7296] memfd_create("syzkaller", 0) = 3 [pid 7296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7296] 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"..., 2097152) = 2097152 [pid 7296] munmap(0x7f320ee61000, 2097152) = 0 [pid 7296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7296] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7296] close(3) = 0 [pid 7296] mkdir("./file1", 0777) = 0 [pid 7296] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7296] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7296] chdir("./file1") = 0 [pid 7296] ioctl(4, LOOP_CLR_FD) = 0 [pid 7296] close(4) = 0 [pid 7296] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7296] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7296] ftruncate(5, 33587199) = 0 [ 291.902828][ T7296] loop0: detected capacity change from 0 to 4096 [ 291.914688][ T7296] NILFS (loop0): invalid segment: Checksum error in segment payload [ 291.922759][ T7296] NILFS (loop0): trying rollback from an earlier position [ 291.934185][ T7296] NILFS (loop0): recovery complete [ 291.939869][ T7297] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7296] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7296] exit_group(0) = ? [pid 7296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7296, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1104/binderfs") = 0 umount2("./1104/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1104/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1104/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1104/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1104/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1104/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1104") = 0 mkdir("./1105", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7298 ./strace-static-x86_64: Process 7298 attached [pid 7298] chdir("./1105") = 0 [pid 7298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7298] setpgid(0, 0) = 0 [pid 7298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7298] write(3, "1000", 4) = 4 [pid 7298] close(3) = 0 [pid 7298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7298] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7298] memfd_create("syzkaller", 0) = 3 [pid 7298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7298] 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"..., 2097152) = 2097152 [pid 7298] munmap(0x7f320ee61000, 2097152) = 0 [pid 7298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7298] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7298] close(3) = 0 [pid 7298] mkdir("./file1", 0777) = 0 [pid 7298] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7298] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7298] chdir("./file1") = 0 [pid 7298] ioctl(4, LOOP_CLR_FD) = 0 [pid 7298] close(4) = 0 [pid 7298] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7298] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7298] ftruncate(5, 33587199) = 0 [ 292.140542][ T7298] loop0: detected capacity change from 0 to 4096 [ 292.153264][ T7298] NILFS (loop0): invalid segment: Checksum error in segment payload [ 292.161312][ T7298] NILFS (loop0): trying rollback from an earlier position [ 292.173097][ T7298] NILFS (loop0): recovery complete [ 292.178867][ T7299] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7298] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7298] exit_group(0) = ? [pid 7298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7298, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1105/binderfs") = 0 umount2("./1105/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1105/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1105/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1105/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1105/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1105/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1105") = 0 mkdir("./1106", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7300 attached , child_tidptr=0x555555c06690) = 7300 [pid 7300] chdir("./1106") = 0 [pid 7300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7300] setpgid(0, 0) = 0 [pid 7300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7300] write(3, "1000", 4) = 4 [pid 7300] close(3) = 0 [pid 7300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7300] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7300] memfd_create("syzkaller", 0) = 3 [pid 7300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7300] 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"..., 2097152) = 2097152 [pid 7300] munmap(0x7f320ee61000, 2097152) = 0 [pid 7300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7300] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7300] close(3) = 0 [pid 7300] mkdir("./file1", 0777) = 0 [pid 7300] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7300] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7300] chdir("./file1") = 0 [pid 7300] ioctl(4, LOOP_CLR_FD) = 0 [pid 7300] close(4) = 0 [pid 7300] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7300] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7300] ftruncate(5, 33587199) = 0 [ 292.371210][ T7300] loop0: detected capacity change from 0 to 4096 [ 292.383736][ T7300] NILFS (loop0): invalid segment: Checksum error in segment payload [ 292.391918][ T7300] NILFS (loop0): trying rollback from an earlier position [ 292.403569][ T7300] NILFS (loop0): recovery complete [ 292.409231][ T7301] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7300] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7300] exit_group(0) = ? [pid 7300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7300, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./1106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1106/binderfs") = 0 umount2("./1106/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1106/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1106/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1106/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1106/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1106/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1106") = 0 mkdir("./1107", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7302 attached , child_tidptr=0x555555c06690) = 7302 [pid 7302] chdir("./1107") = 0 [pid 7302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7302] setpgid(0, 0) = 0 [pid 7302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7302] write(3, "1000", 4) = 4 [pid 7302] close(3) = 0 [pid 7302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7302] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7302] memfd_create("syzkaller", 0) = 3 [pid 7302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7302] 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"..., 2097152) = 2097152 [pid 7302] munmap(0x7f320ee61000, 2097152) = 0 [pid 7302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7302] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7302] close(3) = 0 [pid 7302] mkdir("./file1", 0777) = 0 [pid 7302] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7302] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7302] chdir("./file1") = 0 [pid 7302] ioctl(4, LOOP_CLR_FD) = 0 [pid 7302] close(4) = 0 [pid 7302] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7302] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7302] ftruncate(5, 33587199) = 0 [ 292.603501][ T7302] loop0: detected capacity change from 0 to 4096 [ 292.616299][ T7302] NILFS (loop0): invalid segment: Checksum error in segment payload [ 292.624522][ T7302] NILFS (loop0): trying rollback from an earlier position [ 292.636412][ T7302] NILFS (loop0): recovery complete [ 292.642363][ T7303] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7302] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7302] exit_group(0) = ? [pid 7302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7302, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1107/binderfs") = 0 umount2("./1107/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1107/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1107/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1107/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1107/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1107/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1107") = 0 mkdir("./1108", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7304 ./strace-static-x86_64: Process 7304 attached [pid 7304] chdir("./1108") = 0 [pid 7304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7304] setpgid(0, 0) = 0 [pid 7304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7304] write(3, "1000", 4) = 4 [pid 7304] close(3) = 0 [pid 7304] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7304] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7304] memfd_create("syzkaller", 0) = 3 [pid 7304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7304] 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"..., 2097152) = 2097152 [pid 7304] munmap(0x7f320ee61000, 2097152) = 0 [pid 7304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7304] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7304] close(3) = 0 [pid 7304] mkdir("./file1", 0777) = 0 [pid 7304] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7304] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7304] chdir("./file1") = 0 [pid 7304] ioctl(4, LOOP_CLR_FD) = 0 [pid 7304] close(4) = 0 [pid 7304] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7304] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7304] ftruncate(5, 33587199) = 0 [ 292.833270][ T7304] loop0: detected capacity change from 0 to 4096 [ 292.845897][ T7304] NILFS (loop0): invalid segment: Checksum error in segment payload [ 292.853975][ T7304] NILFS (loop0): trying rollback from an earlier position [ 292.865679][ T7304] NILFS (loop0): recovery complete [ 292.871577][ T7305] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7304] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7304] exit_group(0) = ? [pid 7304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7304, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1108/binderfs") = 0 umount2("./1108/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1108/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1108/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1108/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1108/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1108/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1108") = 0 mkdir("./1109", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7306 ./strace-static-x86_64: Process 7306 attached [pid 7306] chdir("./1109") = 0 [pid 7306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7306] setpgid(0, 0) = 0 [pid 7306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7306] write(3, "1000", 4) = 4 [pid 7306] close(3) = 0 [pid 7306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7306] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7306] memfd_create("syzkaller", 0) = 3 [pid 7306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7306] 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"..., 2097152) = 2097152 [pid 7306] munmap(0x7f320ee61000, 2097152) = 0 [pid 7306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7306] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7306] close(3) = 0 [pid 7306] mkdir("./file1", 0777) = 0 [pid 7306] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7306] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7306] chdir("./file1") = 0 [pid 7306] ioctl(4, LOOP_CLR_FD) = 0 [pid 7306] close(4) = 0 [pid 7306] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7306] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7306] ftruncate(5, 33587199) = 0 [ 293.045245][ T7306] loop0: detected capacity change from 0 to 4096 [ 293.057410][ T7306] NILFS (loop0): invalid segment: Checksum error in segment payload [ 293.065968][ T7306] NILFS (loop0): trying rollback from an earlier position [ 293.077880][ T7306] NILFS (loop0): recovery complete [ 293.083837][ T7307] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7306] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7306] exit_group(0) = ? [pid 7306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7306, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./1109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1109/binderfs") = 0 umount2("./1109/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1109/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1109/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1109/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1109/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1109/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1109") = 0 mkdir("./1110", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7308 attached , child_tidptr=0x555555c06690) = 7308 [pid 7308] chdir("./1110") = 0 [pid 7308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7308] setpgid(0, 0) = 0 [pid 7308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7308] write(3, "1000", 4) = 4 [pid 7308] close(3) = 0 [pid 7308] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7308] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7308] memfd_create("syzkaller", 0) = 3 [pid 7308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7308] 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"..., 2097152) = 2097152 [pid 7308] munmap(0x7f320ee61000, 2097152) = 0 [pid 7308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7308] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7308] close(3) = 0 [pid 7308] mkdir("./file1", 0777) = 0 [pid 7308] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7308] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7308] chdir("./file1") = 0 [pid 7308] ioctl(4, LOOP_CLR_FD) = 0 [pid 7308] close(4) = 0 [pid 7308] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7308] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7308] ftruncate(5, 33587199) = 0 [ 293.284055][ T7308] loop0: detected capacity change from 0 to 4096 [ 293.295904][ T7308] NILFS (loop0): invalid segment: Checksum error in segment payload [ 293.303963][ T7308] NILFS (loop0): trying rollback from an earlier position [ 293.315575][ T7308] NILFS (loop0): recovery complete [ 293.321509][ T7309] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7308] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7308] exit_group(0) = ? [pid 7308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7308, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1110/binderfs") = 0 umount2("./1110/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1110/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1110/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1110/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1110/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1110/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1110") = 0 mkdir("./1111", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7310 ./strace-static-x86_64: Process 7310 attached [pid 7310] chdir("./1111") = 0 [pid 7310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7310] setpgid(0, 0) = 0 [pid 7310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7310] write(3, "1000", 4) = 4 [pid 7310] close(3) = 0 [pid 7310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7310] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7310] memfd_create("syzkaller", 0) = 3 [pid 7310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7310] 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"..., 2097152) = 2097152 [pid 7310] munmap(0x7f320ee61000, 2097152) = 0 [pid 7310] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7310] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7310] close(3) = 0 [pid 7310] mkdir("./file1", 0777) = 0 [pid 7310] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7310] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7310] chdir("./file1") = 0 [pid 7310] ioctl(4, LOOP_CLR_FD) = 0 [pid 7310] close(4) = 0 [pid 7310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7310] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7310] ftruncate(5, 33587199) = 0 [ 293.524654][ T7310] loop0: detected capacity change from 0 to 4096 [ 293.536702][ T7310] NILFS (loop0): invalid segment: Checksum error in segment payload [ 293.544811][ T7310] NILFS (loop0): trying rollback from an earlier position [ 293.555589][ T7310] NILFS (loop0): recovery complete [ 293.561342][ T7311] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7310] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7310] exit_group(0) = ? [pid 7310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7310, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./1111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1111/binderfs") = 0 umount2("./1111/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1111/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1111/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1111/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1111/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1111/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1111") = 0 mkdir("./1112", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7312 ./strace-static-x86_64: Process 7312 attached [pid 7312] chdir("./1112") = 0 [pid 7312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7312] setpgid(0, 0) = 0 [pid 7312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7312] write(3, "1000", 4) = 4 [pid 7312] close(3) = 0 [pid 7312] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7312] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7312] memfd_create("syzkaller", 0) = 3 [pid 7312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7312] 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"..., 2097152) = 2097152 [pid 7312] munmap(0x7f320ee61000, 2097152) = 0 [pid 7312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7312] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7312] close(3) = 0 [pid 7312] mkdir("./file1", 0777) = 0 [pid 7312] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7312] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7312] chdir("./file1") = 0 [pid 7312] ioctl(4, LOOP_CLR_FD) = 0 [pid 7312] close(4) = 0 [pid 7312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7312] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7312] ftruncate(5, 33587199) = 0 [ 293.758552][ T7312] loop0: detected capacity change from 0 to 4096 [ 293.771107][ T7312] NILFS (loop0): invalid segment: Checksum error in segment payload [ 293.779222][ T7312] NILFS (loop0): trying rollback from an earlier position [ 293.790578][ T7312] NILFS (loop0): recovery complete [ 293.796406][ T7313] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7312] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7312] exit_group(0) = ? [pid 7312] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7312, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1112/binderfs") = 0 umount2("./1112/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1112/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1112/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1112/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1112/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1112/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1112") = 0 mkdir("./1113", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7314 ./strace-static-x86_64: Process 7314 attached [pid 7314] chdir("./1113") = 0 [pid 7314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7314] setpgid(0, 0) = 0 [pid 7314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7314] write(3, "1000", 4) = 4 [pid 7314] close(3) = 0 [pid 7314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7314] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7314] memfd_create("syzkaller", 0) = 3 [pid 7314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7314] 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"..., 2097152) = 2097152 [pid 7314] munmap(0x7f320ee61000, 2097152) = 0 [pid 7314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7314] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7314] close(3) = 0 [pid 7314] mkdir("./file1", 0777) = 0 [pid 7314] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7314] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7314] chdir("./file1") = 0 [pid 7314] ioctl(4, LOOP_CLR_FD) = 0 [pid 7314] close(4) = 0 [pid 7314] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7314] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7314] ftruncate(5, 33587199) = 0 [ 293.987923][ T7314] loop0: detected capacity change from 0 to 4096 [ 294.000136][ T7314] NILFS (loop0): invalid segment: Checksum error in segment payload [ 294.008594][ T7314] NILFS (loop0): trying rollback from an earlier position [ 294.020125][ T7314] NILFS (loop0): recovery complete [ 294.025902][ T7315] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7314] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7314] exit_group(0) = ? [pid 7314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7314, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./1113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1113/binderfs") = 0 umount2("./1113/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1113/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1113/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1113/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1113/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1113/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1113") = 0 mkdir("./1114", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c06690) = 7316 ./strace-static-x86_64: Process 7316 attached [pid 7316] chdir("./1114") = 0 [pid 7316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7316] setpgid(0, 0) = 0 [pid 7316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7316] write(3, "1000", 4) = 4 [pid 7316] close(3) = 0 [pid 7316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7316] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7316] memfd_create("syzkaller", 0) = 3 [pid 7316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7316] 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"..., 2097152) = 2097152 [pid 7316] munmap(0x7f320ee61000, 2097152) = 0 [pid 7316] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7316] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7316] close(3) = 0 [pid 7316] mkdir("./file1", 0777) = 0 [pid 7316] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7316] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7316] chdir("./file1") = 0 [pid 7316] ioctl(4, LOOP_CLR_FD) = 0 [pid 7316] close(4) = 0 [pid 7316] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7316] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7316] ftruncate(5, 33587199) = 0 [ 294.221511][ T7316] loop0: detected capacity change from 0 to 4096 [ 294.234704][ T7316] NILFS (loop0): invalid segment: Checksum error in segment payload [ 294.242912][ T7316] NILFS (loop0): trying rollback from an earlier position [ 294.254154][ T7316] NILFS (loop0): recovery complete [ 294.259938][ T7317] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 7316] sendfile(4, 5, NULL, 281474978811909) = 1048576 [pid 7316] exit_group(0) = ? [pid 7316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7316, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555555c076e0 /* 4 entries */, 32768) = 112 umount2("./1114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1114/binderfs") = 0 umount2("./1114/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1114/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1114/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1114/file1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1114/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555555c0f720 /* 2 entries */, 32768) = 48 getdents64(4, 0x555555c0f720 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1114/file1") = 0 getdents64(3, 0x555555c076e0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1114") = 0 mkdir("./1115", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7318 attached [pid 7318] chdir("./1115") = 0 [pid 7318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7318] setpgid(0, 0 [pid 5073] <... clone resumed>, child_tidptr=0x555555c06690) = 7318 [pid 7318] <... setpgid resumed>) = 0 [pid 7318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7318] write(3, "1000", 4) = 4 [pid 7318] close(3) = 0 [pid 7318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7318] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address) [pid 7318] memfd_create("syzkaller", 0) = 3 [pid 7318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f320ee61000 [pid 7318] 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"..., 2097152) = 2097152 [pid 7318] munmap(0x7f320ee61000, 2097152) = 0 [pid 7318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7318] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7318] close(3) = 0 [pid 7318] mkdir("./file1", 0777) = 0 [pid 7318] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0 [pid 7318] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 7318] chdir("./file1") = 0 [pid 7318] ioctl(4, LOOP_CLR_FD) = 0 [pid 7318] close(4) = 0 [pid 7318] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 7318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 7318] ftruncate(5, 33587199) = 0 [ 294.458268][ T7318] loop0: detected capacity change from 0 to 4096 [ 294.471068][ T7318] NILFS (loop0): invalid segment: Checksum error in segment payload [ 294.479123][ T7318] NILFS (loop0): trying rollback from an earlier position [ 294.490499][ T7318] NILFS (loop0): recovery complete [ 294.496152][ T7319] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 294.521530][ T7319] ------------[ cut here ]------------ [ 294.527185][ T7319] WARNING: CPU: 1 PID: 7319 at fs/nilfs2/btree.c:2282 nilfs_btree_assign+0x968/0xde0 [ 294.536727][ T7319] Modules linked in: [ 294.540683][ T7319] CPU: 1 PID: 7319 Comm: segctord Not tainted 6.3.0-rc4-syzkaller-00199-g7b50567bdcad #0 [ 294.550622][ T7319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 294.560716][ T7319] RIP: 0010:nilfs_btree_assign+0x968/0xde0 [ 294.566520][ T7319] Code: 00 00 00 00 e9 93 f8 ff ff e8 c4 d5 57 fe 44 89 e6 bf fe ff ff ff e8 07 d2 57 fe 41 83 fc fe 0f 85 9a fb ff ff e8 a8 d5 57 fe <0f> 0b e9 8e fb ff ff e8 9c d5 57 fe 48 89 eb 48 c7 44 24 28 18 00 [ 294.586208][ T7319] RSP: 0018:ffffc900061879f0 EFLAGS: 00010293 [ 294.592324][ T7319] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 294.600364][ T7319] RDX: ffff8880260e3a80 RSI: ffffffff832b0218 RDI: 0000000000000005 [ 294.608399][ T7319] RBP: ffff88807209a688 R08: 0000000000000005 R09: 00000000fffffffe [ 294.616442][ T7319] R10: 00000000fffffffe R11: 0000000000094001 R12: 00000000fffffffe [ 294.624528][ T7319] R13: ffffc90006187c78 R14: ffffc90006187cb8 R15: 0000000000000082 [ 294.632567][ T7319] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 294.641570][ T7319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 294.648162][ T7319] CR2: 00007f3217322140 CR3: 000000007af8d000 CR4: 0000000000350ee0 [ 294.656175][ T7319] Call Trace: [ 294.659456][ T7319] [ 294.662446][ T7319] ? nilfs_btree_seek_key+0x450/0x450 [ 294.667829][ T7319] ? down_write+0x14f/0x200 [ 294.672371][ T7319] ? rwsem_down_write_slowpath+0x1220/0x1220 [ 294.678392][ T7319] ? up_write+0x1b4/0x520 [ 294.682771][ T7319] ? __getblk_gfp+0x4f/0x80 [ 294.687278][ T7319] nilfs_bmap_assign+0x87/0x180 [ 294.692179][ T7319] nilfs_segctor_do_construct+0x146a/0x7100 [ 294.698099][ T7319] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 294.704574][ T7319] ? do_raw_spin_lock+0x124/0x2b0 [ 294.709608][ T7319] ? spin_bug+0x1c0/0x1c0 [ 294.713973][ T7319] ? do_raw_spin_unlock+0x175/0x230 [ 294.719179][ T7319] ? _raw_spin_unlock+0x28/0x40 [ 294.724112][ T7319] nilfs_segctor_construct+0x8e3/0xb30 [ 294.729601][ T7319] ? rcu_is_watching+0x12/0xb0 [ 294.734442][ T7319] ? trace_nilfs2_transaction_transition+0x17d/0x1c0 [ 294.741181][ T7319] nilfs_segctor_thread+0x3c7/0xf30 [ 294.746416][ T7319] ? nilfs_segctor_construct+0xb30/0xb30 [ 294.752118][ T7319] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 294.757950][ T7319] ? __kthread_parkme+0x163/0x220 [ 294.763041][ T7319] ? nilfs_segctor_construct+0xb30/0xb30 [ 294.768694][ T7319] kthread+0x2e8/0x3a0 [ 294.772794][ T7319] ? kthread_complete_and_exit+0x40/0x40 [ 294.778438][ T7319] ret_from_fork+0x1f/0x30 [ 294.782919][ T7319] [ 294.785936][ T7319] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 294.793204][ T7319] CPU: 1 PID: 7319 Comm: segctord Not tainted 6.3.0-rc4-syzkaller-00199-g7b50567bdcad #0 [ 294.802996][ T7319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 294.813040][ T7319] Call Trace: [ 294.816316][ T7319] [ 294.819245][ T7319] dump_stack_lvl+0xd9/0x150 [ 294.823826][ T7319] panic+0x688/0x730 [ 294.827737][ T7319] ? panic_smp_self_stop+0x90/0x90 [ 294.832862][ T7319] ? show_trace_log_lvl+0x285/0x390 [ 294.838089][ T7319] ? nilfs_btree_assign+0x968/0xde0 [ 294.843300][ T7319] check_panic_on_warn+0xb1/0xc0 [ 294.848250][ T7319] __warn+0xf2/0x390 [ 294.852132][ T7319] ? nilfs_btree_assign+0x968/0xde0 [ 294.857322][ T7319] report_bug+0x2da/0x500 [ 294.861672][ T7319] handle_bug+0x3c/0x70 [ 294.865816][ T7319] exc_invalid_op+0x18/0x50 [ 294.870309][ T7319] asm_exc_invalid_op+0x1a/0x20 [ 294.875173][ T7319] RIP: 0010:nilfs_btree_assign+0x968/0xde0 [ 294.880984][ T7319] Code: 00 00 00 00 e9 93 f8 ff ff e8 c4 d5 57 fe 44 89 e6 bf fe ff ff ff e8 07 d2 57 fe 41 83 fc fe 0f 85 9a fb ff ff e8 a8 d5 57 fe <0f> 0b e9 8e fb ff ff e8 9c d5 57 fe 48 89 eb 48 c7 44 24 28 18 00 [ 294.900630][ T7319] RSP: 0018:ffffc900061879f0 EFLAGS: 00010293 [ 294.906707][ T7319] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 294.914680][ T7319] RDX: ffff8880260e3a80 RSI: ffffffff832b0218 RDI: 0000000000000005 [ 294.922645][ T7319] RBP: ffff88807209a688 R08: 0000000000000005 R09: 00000000fffffffe [ 294.930614][ T7319] R10: 00000000fffffffe R11: 0000000000094001 R12: 00000000fffffffe [ 294.938582][ T7319] R13: ffffc90006187c78 R14: ffffc90006187cb8 R15: 0000000000000082 [ 294.946560][ T7319] ? nilfs_btree_assign+0x968/0xde0 [ 294.951769][ T7319] ? nilfs_btree_seek_key+0x450/0x450 [ 294.957138][ T7319] ? down_write+0x14f/0x200 [ 294.961636][ T7319] ? rwsem_down_write_slowpath+0x1220/0x1220 [ 294.967619][ T7319] ? up_write+0x1b4/0x520 [ 294.971954][ T7319] ? __getblk_gfp+0x4f/0x80 [ 294.976533][ T7319] nilfs_bmap_assign+0x87/0x180 [ 294.981377][ T7319] nilfs_segctor_do_construct+0x146a/0x7100 [ 294.987281][ T7319] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 294.993695][ T7319] ? do_raw_spin_lock+0x124/0x2b0 [ 294.998714][ T7319] ? spin_bug+0x1c0/0x1c0 [ 295.003036][ T7319] ? do_raw_spin_unlock+0x175/0x230 [ 295.008228][ T7319] ? _raw_spin_unlock+0x28/0x40 [ 295.013076][ T7319] nilfs_segctor_construct+0x8e3/0xb30 [ 295.018540][ T7319] ? rcu_is_watching+0x12/0xb0 [ 295.023307][ T7319] ? trace_nilfs2_transaction_transition+0x17d/0x1c0 [ 295.029987][ T7319] nilfs_segctor_thread+0x3c7/0xf30 [ 295.035200][ T7319] ? nilfs_segctor_construct+0xb30/0xb30 [ 295.040838][ T7319] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 295.046636][ T7319] ? __kthread_parkme+0x163/0x220 [ 295.051660][ T7319] ? nilfs_segctor_construct+0xb30/0xb30 [ 295.057297][ T7319] kthread+0x2e8/0x3a0 [ 295.061359][ T7319] ? kthread_complete_and_exit+0x40/0x40 [ 295.066985][ T7319] ret_from_fork+0x1f/0x30 [ 295.071405][ T7319] [ 295.075185][ T7319] Kernel Offset: disabled [ 295.079575][ T7319] Rebooting in 86400 seconds..