./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor904581472

<...>
Warning: Permanently added '10.128.0.20' (ED25519) to the list of known hosts.
execve("./syz-executor904581472", ["./syz-executor904581472"], 0x7ffdce99fd10 /* 10 vars */) = 0
brk(NULL)                               = 0x55557f95b000
brk(0x55557f95bd00)                     = 0x55557f95bd00
arch_prctl(ARCH_SET_FS, 0x55557f95b380) = 0
set_tid_address(0x55557f95b650)         = 5832
set_robust_list(0x55557f95b660, 24)     = 0
rseq(0x55557f95bca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor904581472", 4096) = 27
getrandom("\xe6\x03\x8a\xc5\xaf\x04\xe3\x32", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557f95bd00
brk(0x55557f97cd00)                     = 0x55557f97cd00
brk(0x55557f97d000)                     = 0x55557f97d000
mprotect(0x7ff1870c9000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
mkdir("/syzcgroup", 0777)               = 0
mkdir("/syzcgroup/unified", 0777)       = 0
mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0
chmod("/syzcgroup/unified", 0777)       = 0
openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3
write(3, "+cpu", 4)                     = 4
write(3, "+io", 3)                      = 3
write(3, "+pids", 5)                    = 5
close(3)                                = 0
mkdir("/syzcgroup/net", 0777)           = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0
[   90.924933][ T5832] cgroup: Unknown subsys name 'net'
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0
chmod("/syzcgroup/net", 0777)           = 0
mkdir("/syzcgroup/cpu", 0777)           = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0
umount2("/syzcgroup/cpu", 0)            = 0
[   91.077364][ T5832] cgroup: Unknown subsys name 'cpuset'
mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted)
[   91.130637][ T5832] cgroup: Unknown subsys name 'rlimit'
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = 0
chmod("/syzcgroup/cpu", 0777)           = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
mkdir("./syzkaller.Wmhrj1", 0700)       = 0
chmod("./syzkaller.Wmhrj1", 0777)       = 0
chdir("./syzkaller.Wmhrj1")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached
 <unfinished ...>
[pid  5833] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x55557f95b650) = 5833
[pid  5833] <... set_robust_list resumed>) = 0
[pid  5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5833] getppid()                   = 0
[pid  5833] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5833] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5833] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5833] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5833] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5833] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5833] unshare(CLONE_NEWNS)        = 0
[pid  5833] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] unshare(CLONE_NEWIPC)       = 0
[pid  5833] unshare(CLONE_NEWCGROUP)    = 0
[pid  5833] unshare(CLONE_NEWUTS)       = 0
[pid  5833] unshare(CLONE_SYSVSEM)      = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "16777216", 8)     = 8
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "536870912", 9)    = 9
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1024", 4)         = 4
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "8192", 4)         = 4
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1024", 4)         = 4
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1024", 4)         = 4
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5833] close(3)                    = 0
[pid  5833] getpid()                    = 1
[pid  5833] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5833] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5833] unshare(CLONE_NEWNET)       = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "0 65535", 7)      = 7
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "100000", 6)       = 6
[pid  5833] close(3)                    = 0
[pid  5833] mkdir("./syz-tmp", 0777)    = 0
[pid  5833] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5833] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5833] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5833] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5833] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5833] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5833] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5833] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5833] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5833] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5833] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid  5833] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5833] mkdir("./syz-tmp/newroot/syzcgroup", 0700) = 0
[pid  5833] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700) = 0
[pid  5833] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700) = 0
[pid  5833] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700) = 0
[pid  5833] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5833] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5833] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5833] chdir("/")                  = 0
[pid  5833] umount2("./pivot", MNT_DETACH) = 0
[pid  5833] chroot("./newroot")         = 0
[pid  5833] chdir("/")                  = 0
[pid  5833] mkdir("/dev/gadgetfs", 0777) = 0
[pid  5833] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = 0
[pid  5833] mkdir("/dev/binderfs", 0777) = 0
[   91.881592][  T975] cfg80211: failed to load regulatory.db
[pid  5833] mount("binder", "/dev/binderfs", "binder", 0, NULL) = -1 ENODEV (No such device)
[pid  5833] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5833] getpid()                    = 1
[pid  5833] mkdir("/syzcgroup/unified/syz0", 0777) = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "32", 2)           = 2
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1", 1)            = 1
[pid  5833] close(3)                    = 0
[pid  5833] mkdir("/syzcgroup/cpu/syz0", 0777) = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1", 1)            = 1
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "313524224", 9)    = 9
[pid  5833] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "314572800", 9)    = 9
[pid  5833] close(3)                    = 0
[pid  5833] mkdir("/syzcgroup/net/syz0", 0777) = 0
[pid  5833] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] write(3, "1", 1)            = 1
[pid  5833] close(3)                    = 0
[pid  5833] mkdir("./0", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5837 attached
, child_tidptr=0x55557f95b650) = 2
[pid  5837] set_robust_list(0x55557f95b660, 24) = 0
[pid  5837] chdir("./0")                = 0
[pid  5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5837] setpgid(0, 0)               = 0
[pid  5837] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5837] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5837] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[   91.981735][ T5833] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[pid  5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5837] write(3, "1000", 4)         = 4
[pid  5837] close(3)                    = 0
[pid  5837] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5837] write(1, "executing program\n", 18executing program
) = 18
[pid  5837] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5837] memfd_create("syzkaller", 0) = 3
[pid  5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5837] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5837] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5837] close(3)                    = 0
[pid  5837] close(4)                    = 0
[pid  5837] mkdir("./file1", 0777)      = 0
[   92.091287][ T5837] loop0: detected capacity change from 0 to 4096
[pid  5837] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5837] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5837] chdir("./file1")            = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5837] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5837] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5837] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5837] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5837] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5837] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5837] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[   92.137339][ T5837] NILFS (loop0): invalid segment: Checksum error in segment payload
[   92.145676][ T5837] NILFS (loop0): trying rollback from an earlier position
[   92.167484][ T5837] NILFS (loop0): recovery complete
[   92.174986][ T5838] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5837] close(3)                    = 0
[pid  5837] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5837] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5837] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5837] exit_group(0)               = ?
[pid  5837] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./0/file1")          = 0
[pid  5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./0/binderfs")      = 0
[pid  5833] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./0/cgroup.net")    = 0
[pid  5833] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./0/cgroup.cpu")    = 0
[pid  5833] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./0/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./0")                = 0
[pid  5833] mkdir("./1", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached
, child_tidptr=0x55557f95b650) = 3
[pid  5839] set_robust_list(0x55557f95b660, 24) = 0
[pid  5839] chdir("./1")                = 0
[pid  5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5839] setpgid(0, 0)               = 0
[pid  5839] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5839] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5839] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5839] write(3, "1000", 4)         = 4
[pid  5839] close(3)                    = 0
[pid  5839] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5839] write(1, "executing program\n", 18) = 18
[pid  5839] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5839] memfd_create("syzkaller", 0) = 3
[pid  5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5839] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5839] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5839] close(3)                    = 0
[pid  5839] close(4)                    = 0
[pid  5839] mkdir("./file1", 0777)      = 0
[   92.685354][ T5839] loop0: detected capacity change from 0 to 4096
[   92.715356][ T5839] NILFS (loop0): invalid segment: Checksum error in segment payload
[   92.723774][ T5839] NILFS (loop0): trying rollback from an earlier position
[pid  5839] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5839] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5839] chdir("./file1")            = 0
[pid  5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5839] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5839] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5839] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5839] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5839] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5839] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5839] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5839] close(3)                    = 0
[pid  5839] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5839] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(17)                   = -1 EBADF (Bad file descriptor)
[   92.740559][ T5839] NILFS (loop0): recovery complete
[   92.746866][ T5840] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5839] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5839] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5839] exit_group(0)               = ?
[pid  5839] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
[pid  5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./1/file1")          = 0
[pid  5833] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./1/binderfs")      = 0
[pid  5833] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./1/cgroup.net")    = 0
[pid  5833] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./1/cgroup.cpu")    = 0
[pid  5833] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./1/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./1")                = 0
[pid  5833] mkdir("./2", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[   92.785086][    T0] NOHZ tick-stop error: local softirq work is pending, handler #40!!!
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached
 <unfinished ...>
[pid  5841] set_robust_list(0x55557f95b660, 24) = 0
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 4
[pid  5841] chdir("./2")                = 0
[pid  5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5841] setpgid(0, 0)               = 0
[pid  5841] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5841] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5841] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "1000", 4)         = 4
[pid  5841] close(3)                    = 0
[pid  5841] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5841] write(1, "executing program\n", 18) = 18
[pid  5841] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5841] memfd_create("syzkaller", 0) = 3
[pid  5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5841] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5841] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5841] close(3)                    = 0
[pid  5841] close(4)                    = 0
[pid  5841] mkdir("./file1", 0777)      = 0
[   92.936426][ T5841] loop0: detected capacity change from 0 to 4096
[   92.964282][ T5841] NILFS (loop0): invalid segment: Checksum error in segment payload
[   92.972520][ T5841] NILFS (loop0): trying rollback from an earlier position
[pid  5841] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5841] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5841] chdir("./file1")            = 0
[pid  5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5841] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5841] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5841] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5841] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5841] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5841] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5841] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5841] close(3)                    = 0
[pid  5841] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5841] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5841] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5841] exit_group(0)               = ?
[   92.990161][ T5841] NILFS (loop0): recovery complete
[   92.996308][ T5842] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5841] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
[pid  5833] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./2/file1")          = 0
[pid  5833] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./2/binderfs")      = 0
[pid  5833] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./2/cgroup.net")    = 0
[pid  5833] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./2/cgroup.cpu")    = 0
[pid  5833] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./2/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./2")                = 0
[pid  5833] mkdir("./3", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached
, child_tidptr=0x55557f95b650) = 5
[pid  5843] set_robust_list(0x55557f95b660, 24) = 0
[pid  5843] chdir("./3")                = 0
[pid  5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5843] setpgid(0, 0)               = 0
[pid  5843] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5843] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5843] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5843] write(3, "1000", 4)         = 4
[pid  5843] close(3)                    = 0
[pid  5843] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5843] write(1, "executing program\n", 18executing program
) = 18
[pid  5843] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5843] memfd_create("syzkaller", 0) = 3
[pid  5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5843] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5843] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5843] close(3)                    = 0
[pid  5843] close(4)                    = 0
[pid  5843] mkdir("./file1", 0777)      = 0
[   93.418075][ T5843] loop0: detected capacity change from 0 to 4096
[pid  5843] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5843] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5843] chdir("./file1")            = 0
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5843] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5843] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5843] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5843] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[   93.460829][ T5843] NILFS (loop0): invalid segment: Checksum error in segment payload
[   93.468877][ T5843] NILFS (loop0): trying rollback from an earlier position
[   93.488746][ T5843] NILFS (loop0): recovery complete
[   93.495046][ T5844] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5843] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5843] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5843] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5843] close(3)                    = 0
[pid  5843] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5843] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5843] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5843] exit_group(0)               = ?
[pid  5843] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
[pid  5833] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./3/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./3/file1")          = 0
[pid  5833] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./3/binderfs")      = 0
[pid  5833] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./3/cgroup.net")    = 0
[pid  5833] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./3/cgroup.cpu")    = 0
[pid  5833] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./3/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./3")                = 0
[pid  5833] mkdir("./4", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached
 <unfinished ...>
[pid  5845] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 6
[pid  5845] <... set_robust_list resumed>) = 0
[pid  5845] chdir("./4")                = 0
[pid  5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5845] setpgid(0, 0)               = 0
[pid  5845] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5845] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5845] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5845] write(3, "1000", 4)         = 4
[pid  5845] close(3)                    = 0
[pid  5845] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5845] write(1, "executing program\n", 18) = 18
[pid  5845] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5845] memfd_create("syzkaller", 0) = 3
[pid  5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5845] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5845] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5845] close(3)                    = 0
[pid  5845] close(4)                    = 0
[pid  5845] mkdir("./file1", 0777)      = 0
[   93.776742][ T5845] loop0: detected capacity change from 0 to 4096
[pid  5845] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5845] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5845] chdir("./file1")            = 0
[pid  5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5845] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5845] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5845] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5845] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5845] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5845] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5845] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5845] close(3)                    = 0
[pid  5845] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5845] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5845] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5845] exit_group(0)               = ?
[pid  5845] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5833] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[   93.845952][ T5845] NILFS (loop0): invalid segment: Checksum error in segment payload
[   93.854116][ T5845] NILFS (loop0): trying rollback from an earlier position
[   93.872747][ T5845] NILFS (loop0): recovery complete
[   93.878987][ T5846] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./4/file1")          = 0
[pid  5833] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./4/binderfs")      = 0
[pid  5833] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./4/cgroup.net")    = 0
[pid  5833] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./4/cgroup.cpu")    = 0
[pid  5833] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./4/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./4")                = 0
[pid  5833] mkdir("./5", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f95b650) = 7
./strace-static-x86_64: Process 5847 attached
[pid  5847] set_robust_list(0x55557f95b660, 24) = 0
[pid  5847] chdir("./5")                = 0
[pid  5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5847] setpgid(0, 0)               = 0
[pid  5847] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5847] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5847] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5847] write(3, "1000", 4)         = 4
[pid  5847] close(3)                    = 0
[pid  5847] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5847] write(1, "executing program\n", 18) = 18
[pid  5847] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5847] memfd_create("syzkaller", 0) = 3
[pid  5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5847] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5847] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5847] close(3)                    = 0
[pid  5847] close(4)                    = 0
[pid  5847] mkdir("./file1", 0777)      = 0
[   94.114652][ T5847] loop0: detected capacity change from 0 to 4096
[   94.147020][ T5847] NILFS (loop0): invalid segment: Checksum error in segment payload
[   94.155223][ T5847] NILFS (loop0): trying rollback from an earlier position
[pid  5847] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5847] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5847] chdir("./file1")            = 0
[pid  5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5847] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5847] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5847] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5847] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5847] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5847] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5847] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5847] close(3)                    = 0
[pid  5847] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5847] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5847] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5847] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5847] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5847] close(9)                    = -1 EBADF (Bad file descriptor)
[   94.173586][ T5847] NILFS (loop0): recovery complete
[   94.179858][ T5848] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5847] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5847] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5847] exit_group(0)               = ?
[pid  5847] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./5/file1")          = 0
[pid  5833] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./5/binderfs")      = 0
[pid  5833] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./5/cgroup.net")    = 0
[pid  5833] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./5/cgroup.cpu")    = 0
[pid  5833] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./5/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./5")                = 0
[pid  5833] mkdir("./6", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f95b650) = 8
./strace-static-x86_64: Process 5849 attached
[pid  5849] set_robust_list(0x55557f95b660, 24) = 0
[pid  5849] chdir("./6")                = 0
[pid  5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5849] setpgid(0, 0)               = 0
[pid  5849] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5849] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5849] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "1000", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5849] write(1, "executing program\n", 18) = 18
[pid  5849] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5849] memfd_create("syzkaller", 0) = 3
[pid  5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5849] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5849] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5849] close(3)                    = 0
[pid  5849] close(4)                    = 0
[pid  5849] mkdir("./file1", 0777)      = 0
[   94.481900][ T5849] loop0: detected capacity change from 0 to 4096
[   94.507211][ T5849] NILFS (loop0): invalid segment: Checksum error in segment payload
[   94.515449][ T5849] NILFS (loop0): trying rollback from an earlier position
[pid  5849] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5849] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5849] chdir("./file1")            = 0
[pid  5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5849] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5849] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5849] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5849] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5849] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5849] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5849] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5849] close(3)                    = 0
[pid  5849] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5849] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5849] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5849] exit_group(0)               = ?
[pid  5849] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[   94.532524][ T5849] NILFS (loop0): recovery complete
[   94.538552][ T5850] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5833] umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./6/file1")          = 0
[pid  5833] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./6/binderfs")      = 0
[pid  5833] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./6/cgroup.net")    = 0
[pid  5833] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./6/cgroup.cpu")    = 0
[pid  5833] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./6/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./6")                = 0
[pid  5833] mkdir("./7", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached
, child_tidptr=0x55557f95b650) = 9
[pid  5851] set_robust_list(0x55557f95b660, 24) = 0
[pid  5851] chdir("./7")                = 0
[pid  5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5851] setpgid(0, 0)               = 0
[pid  5851] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5851] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5851] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5851] write(3, "1000", 4)         = 4
[pid  5851] close(3)                    = 0
[pid  5851] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5851] write(1, "executing program\n", 18) = 18
[pid  5851] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5851] memfd_create("syzkaller", 0) = 3
[pid  5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5851] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5851] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5851] close(3)                    = 0
[pid  5851] close(4)                    = 0
[pid  5851] mkdir("./file1", 0777)      = 0
[   94.806326][ T5851] loop0: detected capacity change from 0 to 4096
[   94.835260][ T5851] NILFS (loop0): invalid segment: Checksum error in segment payload
[   94.843675][ T5851] NILFS (loop0): trying rollback from an earlier position
[pid  5851] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5851] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5851] chdir("./file1")            = 0
[pid  5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5851] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5851] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5851] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5851] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5851] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5851] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5851] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5851] close(3)                    = 0
[pid  5851] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5851] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5851] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5851] close(7)                    = -1 EBADF (Bad file descriptor)
[   94.867191][ T5851] NILFS (loop0): recovery complete
[   94.874025][ T5852] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5851] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5851] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5851] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5851] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5851] exit_group(0)               = ?
[pid  5851] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./7/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./7/file1")          = 0
[pid  5833] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./7/binderfs")      = 0
[pid  5833] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./7/cgroup.net")    = 0
[pid  5833] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./7/cgroup.cpu")    = 0
[pid  5833] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./7/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./7")                = 0
[pid  5833] mkdir("./8", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f95b650) = 10
./strace-static-x86_64: Process 5853 attached
[pid  5853] set_robust_list(0x55557f95b660, 24) = 0
[pid  5853] chdir("./8")                = 0
[pid  5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5853] setpgid(0, 0)               = 0
[pid  5853] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5853] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5853] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5853] write(3, "1000", 4)         = 4
[pid  5853] close(3executing program
)                    = 0
[pid  5853] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5853] write(1, "executing program\n", 18) = 18
[pid  5853] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5853] memfd_create("syzkaller", 0) = 3
[pid  5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5853] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5853] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5853] close(3)                    = 0
[pid  5853] close(4)                    = 0
[pid  5853] mkdir("./file1", 0777)      = 0
[   95.509283][ T5853] loop0: detected capacity change from 0 to 4096
[   95.534110][ T5853] NILFS (loop0): invalid segment: Checksum error in segment payload
[   95.542245][ T5853] NILFS (loop0): trying rollback from an earlier position
[pid  5853] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5853] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5853] chdir("./file1")            = 0
[pid  5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5853] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5853] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5853] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5853] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5853] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5853] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5853] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5853] close(3)                    = 0
[pid  5853] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5853] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5853] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5853] exit_group(0)               = ?
[pid  5853] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[   95.558111][ T5853] NILFS (loop0): recovery complete
[   95.564485][ T5854] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[   95.591145][    T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!!
[pid  5833] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./8/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./8/file1")          = 0
[pid  5833] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./8/binderfs")      = 0
[pid  5833] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./8/cgroup.net")    = 0
[pid  5833] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./8/cgroup.cpu")    = 0
[pid  5833] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./8/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./8")                = 0
[pid  5833] mkdir("./9", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached
 <unfinished ...>
[pid  5855] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 11
[pid  5855] <... set_robust_list resumed>) = 0
[pid  5855] chdir("./9")                = 0
[pid  5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5855] setpgid(0, 0)               = 0
[pid  5855] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5855] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5855] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5855] write(3, "1000", 4)         = 4
[pid  5855] close(3)                    = 0
[pid  5855] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5855] write(1, "executing program\n", 18executing program
) = 18
[pid  5855] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5855] memfd_create("syzkaller", 0) = 3
[pid  5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5855] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5855] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5855] close(3)                    = 0
[pid  5855] close(4)                    = 0
[pid  5855] mkdir("./file1", 0777)      = 0
[   96.042264][ T5855] loop0: detected capacity change from 0 to 4096
[   96.064198][ T5855] NILFS (loop0): invalid segment: Checksum error in segment payload
[   96.072607][ T5855] NILFS (loop0): trying rollback from an earlier position
[pid  5855] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5855] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5855] chdir("./file1")            = 0
[pid  5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5855] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5855] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5855] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5855] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5855] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5855] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5855] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5855] close(3)                    = 0
[pid  5855] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5855] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5855] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5855] exit_group(0)               = ?
[   96.091944][ T5855] NILFS (loop0): recovery complete
[   96.098127][ T5856] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5855] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
[pid  5833] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./9/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./9/file1")          = 0
[pid  5833] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./9/binderfs")      = 0
[pid  5833] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./9/cgroup.net")    = 0
[pid  5833] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./9/cgroup.cpu")    = 0
[pid  5833] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./9/cgroup")        = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./9")                = 0
[pid  5833] mkdir("./10", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5857 attached
 <unfinished ...>
[pid  5857] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 12
[pid  5857] <... set_robust_list resumed>) = 0
[pid  5857] chdir("./10")               = 0
[pid  5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5857] setpgid(0, 0)               = 0
[pid  5857] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5857] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5857] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5857] write(3, "1000", 4)         = 4
[pid  5857] close(3)                    = 0
[pid  5857] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5857] write(1, "executing program\n", 18) = 18
[pid  5857] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5857] memfd_create("syzkaller", 0) = 3
[pid  5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5857] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5857] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5857] close(3)                    = 0
[pid  5857] close(4)                    = 0
[pid  5857] mkdir("./file1", 0777)      = 0
[   96.302163][ T5857] loop0: detected capacity change from 0 to 4096
[   96.337069][ T5857] NILFS (loop0): invalid segment: Checksum error in segment payload
[   96.345231][ T5857] NILFS (loop0): trying rollback from an earlier position
[pid  5857] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5857] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5857] chdir("./file1")            = 0
[pid  5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5857] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5857] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5857] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5857] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5857] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5857] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5857] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5857] close(3)                    = 0
[pid  5857] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5857] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(19)                   = -1 EBADF (Bad file descriptor)
[   96.365909][ T5857] NILFS (loop0): recovery complete
[   96.372004][ T5858] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5857] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5857] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5857] exit_group(0)               = ?
[pid  5857] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5833] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./10/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./10/file1")         = 0
[pid  5833] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./10/binderfs")     = 0
[pid  5833] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./10/cgroup.net")   = 0
[pid  5833] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./10/cgroup.cpu")   = 0
[pid  5833] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./10/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./10")               = 0
[pid  5833] mkdir("./11", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached
 <unfinished ...>
[pid  5859] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 13
[pid  5859] <... set_robust_list resumed>) = 0
[pid  5859] chdir("./11")               = 0
[pid  5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5859] setpgid(0, 0)               = 0
[pid  5859] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5859] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5859] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5859] write(3, "1000", 4)         = 4
[pid  5859] close(3)                    = 0
[pid  5859] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5859] write(1, "executing program\n", 18) = 18
[pid  5859] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5859] memfd_create("syzkaller", 0) = 3
[pid  5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5859] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5859] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5859] close(3)                    = 0
[pid  5859] close(4)                    = 0
[pid  5859] mkdir("./file1", 0777)      = 0
[   96.882258][ T5859] loop0: detected capacity change from 0 to 4096
[   96.907868][ T5859] NILFS (loop0): invalid segment: Checksum error in segment payload
[   96.916105][ T5859] NILFS (loop0): trying rollback from an earlier position
[pid  5859] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5859] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5859] chdir("./file1")            = 0
[pid  5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5859] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5859] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5859] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5859] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5859] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5859] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5859] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5859] close(3)                    = 0
[pid  5859] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5859] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(14)                   = -1 EBADF (Bad file descriptor)
[   96.941319][ T5859] NILFS (loop0): recovery complete
[   96.947342][ T5860] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5859] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5859] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5859] exit_group(0)               = ?
[pid  5859] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./11/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./11/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./11/file1")         = 0
[pid  5833] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./11/binderfs")     = 0
[pid  5833] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./11/cgroup.net")   = 0
[pid  5833] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./11/cgroup.cpu")   = 0
[pid  5833] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./11/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./11")               = 0
[pid  5833] mkdir("./12", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached
 <unfinished ...>
[pid  5861] set_robust_list(0x55557f95b660, 24) = 0
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 14
[pid  5861] chdir("./12")               = 0
[pid  5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5861] setpgid(0, 0)               = 0
[pid  5861] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5861] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5861] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "1000", 4)         = 4
[pid  5861] close(3)                    = 0
[pid  5861] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5861] write(1, "executing program\n", 18) = 18
[pid  5861] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5861] memfd_create("syzkaller", 0) = 3
[pid  5861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5861] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5861] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5861] close(3)                    = 0
[pid  5861] close(4)                    = 0
[pid  5861] mkdir("./file1", 0777)      = 0
[   97.431962][ T5861] loop0: detected capacity change from 0 to 4096
[   97.467287][ T5861] NILFS (loop0): invalid segment: Checksum error in segment payload
[pid  5861] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5861] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5861] chdir("./file1")            = 0
[pid  5861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5861] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5861] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5861] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5861] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5861] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5861] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5861] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5861] close(3)                    = 0
[pid  5861] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5861] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(16)                   = -1 EBADF (Bad file descriptor)
[   97.475661][ T5861] NILFS (loop0): trying rollback from an earlier position
[   97.494110][ T5861] NILFS (loop0): recovery complete
[   97.500694][ T5862] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5861] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5861] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5861] exit_group(0)               = ?
[pid  5861] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
[pid  5833] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./12/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./12/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./12/file1")         = 0
[pid  5833] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./12/binderfs")     = 0
[pid  5833] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./12/cgroup.net")   = 0
[pid  5833] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./12/cgroup.cpu")   = 0
[pid  5833] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./12/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./12")               = 0
[pid  5833] mkdir("./13", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5863 attached
 <unfinished ...>
[pid  5863] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 15
[pid  5863] <... set_robust_list resumed>) = 0
[pid  5863] chdir("./13")               = 0
[pid  5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5863] setpgid(0, 0)               = 0
[pid  5863] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5863] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5863] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5863] write(3, "1000", 4)         = 4
[pid  5863] close(3)                    = 0
[pid  5863] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5863] write(1, "executing program\n", 18executing program
) = 18
[pid  5863] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5863] memfd_create("syzkaller", 0) = 3
[pid  5863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5863] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5863] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5863] close(3)                    = 0
[pid  5863] close(4)                    = 0
[pid  5863] mkdir("./file1", 0777)      = 0
[   98.072945][ T5863] loop0: detected capacity change from 0 to 4096
[   98.103421][ T5863] NILFS (loop0): invalid segment: Checksum error in segment payload
[   98.111639][ T5863] NILFS (loop0): trying rollback from an earlier position
[pid  5863] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5863] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5863] chdir("./file1")            = 0
[pid  5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5863] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5863] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5863] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5863] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5863] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5863] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5863] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5863] close(3)                    = 0
[pid  5863] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5863] close(5)                    = -1 EBADF (Bad file descriptor)
[   98.133438][ T5863] NILFS (loop0): recovery complete
[   98.139701][ T5864] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5863] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5863] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5863] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5863] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5863] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5863] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5863] exit_group(0)               = ?
[pid  5863] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./13/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./13/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./13/file1")         = 0
[pid  5833] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./13/binderfs")     = 0
[pid  5833] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./13/cgroup.net")   = 0
[pid  5833] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./13/cgroup.cpu")   = 0
[pid  5833] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./13/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./13")               = 0
[pid  5833] mkdir("./14", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached
 <unfinished ...>
[pid  5865] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 16
[pid  5865] <... set_robust_list resumed>) = 0
[pid  5865] chdir("./14")               = 0
[pid  5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5865] setpgid(0, 0)               = 0
[pid  5865] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5865] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5865] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5865] write(3, "1000", 4)         = 4
[pid  5865] close(3)                    = 0
executing program
[pid  5865] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5865] write(1, "executing program\n", 18) = 18
[pid  5865] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5865] memfd_create("syzkaller", 0) = 3
[pid  5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5865] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5865] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5865] close(3)                    = 0
[pid  5865] close(4)                    = 0
[pid  5865] mkdir("./file1", 0777)      = 0
[   98.525133][ T5865] loop0: detected capacity change from 0 to 4096
[   98.555393][ T5865] NILFS (loop0): invalid segment: Checksum error in segment payload
[   98.563748][ T5865] NILFS (loop0): trying rollback from an earlier position
[pid  5865] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5865] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5865] chdir("./file1")            = 0
[pid  5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5865] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5865] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5865] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5865] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5865] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5865] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5865] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5865] close(3)                    = 0
[   98.588629][ T5865] NILFS (loop0): recovery complete
[   98.594972][ T5866] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5865] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5865] exit_group(0)               = ?
[pid  5865] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./14/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./14/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./14/file1")         = 0
[pid  5833] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./14/binderfs")     = 0
[pid  5833] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./14/cgroup.net")   = 0
[pid  5833] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./14/cgroup.cpu")   = 0
[pid  5833] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./14/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./14")               = 0
[pid  5833] mkdir("./15", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5867 attached
, child_tidptr=0x55557f95b650) = 17
[pid  5867] set_robust_list(0x55557f95b660, 24) = 0
[pid  5867] chdir("./15")               = 0
[pid  5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5867] setpgid(0, 0)               = 0
[pid  5867] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5867] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5867] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5867] write(3, "1000", 4)         = 4
[pid  5867] close(3)                    = 0
[pid  5867] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5867] write(1, "executing program\n", 18executing program
) = 18
[pid  5867] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5867] memfd_create("syzkaller", 0) = 3
[pid  5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5867] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5867] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5867] close(3)                    = 0
[pid  5867] close(4)                    = 0
[pid  5867] mkdir("./file1", 0777)      = 0
[   99.151196][ T5867] loop0: detected capacity change from 0 to 4096
[   99.174658][ T5867] NILFS (loop0): invalid segment: Checksum error in segment payload
[   99.183639][ T5867] NILFS (loop0): trying rollback from an earlier position
[pid  5867] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5867] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5867] chdir("./file1")            = 0
[pid  5867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5867] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5867] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5867] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5867] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5867] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5867] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5867] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5867] close(3)                    = 0
[pid  5867] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5867] close(10)                   = -1 EBADF (Bad file descriptor)
[   99.213913][ T5867] NILFS (loop0): recovery complete
[   99.221874][ T5868] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5867] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5867] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5867] exit_group(0)               = ?
[pid  5867] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./15/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./15/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./15/file1")         = 0
[pid  5833] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./15/binderfs")     = 0
[pid  5833] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./15/cgroup.net")   = 0
[pid  5833] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./15/cgroup.cpu")   = 0
[pid  5833] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./15/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./15")               = 0
[pid  5833] mkdir("./16", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached
 <unfinished ...>
[pid  5869] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 18
[pid  5869] <... set_robust_list resumed>) = 0
[pid  5869] chdir("./16")               = 0
[pid  5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5869] setpgid(0, 0)               = 0
[pid  5869] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5869] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5869] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5869] write(3, "1000", 4)         = 4
[pid  5869] close(3)                    = 0
[pid  5869] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5869] write(1, "executing program\n", 18executing program
) = 18
[pid  5869] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5869] memfd_create("syzkaller", 0) = 3
[pid  5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5869] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5869] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5869] close(3)                    = 0
[pid  5869] close(4)                    = 0
[pid  5869] mkdir("./file1", 0777)      = 0
[   99.677355][ T5869] loop0: detected capacity change from 0 to 4096
[   99.705959][ T5869] NILFS (loop0): invalid segment: Checksum error in segment payload
[   99.714489][ T5869] NILFS (loop0): trying rollback from an earlier position
[pid  5869] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5869] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5869] chdir("./file1")            = 0
[pid  5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5869] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5869] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5869] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5869] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5869] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5869] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5869] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5869] close(3)                    = 0
[pid  5869] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5869] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(14)                   = -1 EBADF (Bad file descriptor)
[   99.741402][ T5869] NILFS (loop0): recovery complete
[   99.747811][ T5870] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5869] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5869] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5869] exit_group(0)               = ?
[pid  5869] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./16/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./16/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./16/file1")         = 0
[pid  5833] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./16/binderfs")     = 0
[pid  5833] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./16/cgroup.net")   = 0
[pid  5833] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./16/cgroup.cpu")   = 0
[pid  5833] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./16/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./16")               = 0
[pid  5833] mkdir("./17", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5871 attached
 <unfinished ...>
[pid  5871] set_robust_list(0x55557f95b660, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x55557f95b650) = 19
[pid  5871] <... set_robust_list resumed>) = 0
[pid  5871] chdir("./17")               = 0
[pid  5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5871] setpgid(0, 0)               = 0
[pid  5871] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5871] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5871] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5871] write(3, "1000", 4)         = 4
[pid  5871] close(3)                    = 0
[pid  5871] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5871] write(1, "executing program\n", 18) = 18
[pid  5871] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5871] memfd_create("syzkaller", 0) = 3
[pid  5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5871] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5871] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5871] close(3)                    = 0
[pid  5871] close(4)                    = 0
[pid  5871] mkdir("./file1", 0777)      = 0
[   99.988539][ T5871] loop0: detected capacity change from 0 to 4096
[  100.015880][ T5871] NILFS (loop0): invalid segment: Checksum error in segment payload
[  100.024005][ T5871] NILFS (loop0): trying rollback from an earlier position
[pid  5871] mount("/dev/loop0", "./file1", "nilfs2", MS_NODIRATIME|MS_REC|MS_POSIXACL|MS_STRICTATIME, "") = 0
[pid  5871] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5871] chdir("./file1")            = 0
[pid  5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5871] open_by_handle_at(-1, NULL, O_RDONLY) = -1 EBADF (Bad file descriptor)
[pid  5871] dup(-1)                     = -1 EBADF (Bad file descriptor)
[pid  5871] ioctl(-1, KVM_SET_USER_MEMORY_REGION, NULL) = -1 EBADF (Bad file descriptor)
[pid  5871] openat(AT_FDCWD, NULL, O_RDWR|O_CREAT|O_DIRECT|O_CLOEXEC, 000) = -1 EFAULT (Bad address)
[pid  5871] prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, 0x2 /* PIDTYPE_PGID */, NULL) = 0
[pid  5871] sendmsg(-1, NULL, MSG_CONFIRM|MSG_NOSIGNAL) = -1 EBADF (Bad file descriptor)
[pid  5871] ioctl(-1, KVM_RUN, 0)       = -1 EBADF (Bad file descriptor)
[pid  5871] close(3)                    = 0
[pid  5871] close(4)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(5)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5871] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5871] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5871] exit_group(0)               = ?
[  100.043700][ T5871] NILFS (loop0): recovery complete
[  100.053365][ T5872] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid  5871] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5833] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 7 entries */, 32768) = 208
[pid  5833] umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5833] umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./17/file1", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./17/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x55557f964730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557f964730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./17/file1")         = 0
[pid  5833] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./17/binderfs")     = 0
[pid  5833] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./17/cgroup.net")   = 0
[pid  5833] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./17/cgroup.cpu")   = 0
[pid  5833] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./17/cgroup")       = 0
[pid  5833] getdents64(3, 0x55557f95c6f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./17")               = 0
[pid  5833] mkdir("./18", 0777)         = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5873 attached
, child_tidptr=0x55557f95b650) = 20
[pid  5873] set_robust_list(0x55557f95b660, 24) = 0
[pid  5873] chdir("./18")               = 0
[pid  5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5873] setpgid(0, 0)               = 0
[pid  5873] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid  5873] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid  5873] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid  5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5873] write(3, "1000", 4)         = 4
[pid  5873] close(3)                    = 0
[pid  5873] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5873] write(1, "executing program\n", 18) = 18
[pid  5873] ioctl(-1, KVM_CREATE_VM, 0) = -1 EBADF (Bad file descriptor)
[pid  5873] memfd_create("syzkaller", 0) = 3
[pid  5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff17ec00000
[pid  5873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid  5873] munmap(0x7ff17ec00000, 138412032) = 0
[pid  5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5873] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5873] close(3)                    = 0
[pid  5873] close(4)                    = 0
[pid  5873] mkdir("./file1", 0777)      = 0
[  100.257138][ T5873] loop0: detected capacity change from 0 to 4096
[  100.287158][ T5873] NILFS (loop0): invalid segment: Checksum error in segment payload
[  100.295449][ T5873] NILFS (loop0): trying rollback from an earlier position
[  100.305657][   T12] list_add double add: new=ffff888025b9fb70, prev=ffff888025b9fb70, next=ffff888020f85960.
[  100.316188][   T12] ------------[ cut here ]------------
[  100.321643][   T12] kernel BUG at lib/list_debug.c:37!
[  100.326952][   T12] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[  100.333908][   T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0
[  100.344037][   T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[  100.354072][   T12] Workqueue: loop0 loop_workfn
[  100.358849][   T12] RIP: 0010:__list_add_valid_or_report+0xa4/0x130
[  100.365253][   T12] Code: f7 74 11 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 c7 c7 a0 59 81 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 0d e8 27 fc 90 <0f> 0b 48 c7 c7 a0 57 81 8c e8 fe e7 27 fc 90 0f 0b 48 c7 c7 40 58
[  100.384840][   T12] RSP: 0018:ffffc90000117628 EFLAGS: 00010046
[  100.390891][   T12] RAX: 0000000000000058 RBX: 1ffff11004b73f6e RCX: ade36bab2270aa00
[  100.398852][   T12] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[  100.406806][   T12] RBP: 1ffff110041f0b2d R08: ffffffff81a170dc R09: 1ffff92000022e60
[  100.414798][   T12] R10: dffffc0000000000 R11: fffff52000022e61 R12: ffff888025b9fb70
[  100.422785][   T12] R13: dffffc0000000000 R14: ffff888020f85960 R15: ffff888025b9fb70
[  100.430739][   T12] FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[  100.439650][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.446215][   T12] CR2: 00007ff17edff000 CR3: 00000000351e2000 CR4: 00000000003526f0
[  100.454170][   T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.462123][   T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.470079][   T12] Call Trace:
[  100.473342][   T12]  <TASK>
[  100.476257][   T12]  ? __die_body+0x5f/0xb0
[  100.480587][   T12]  ? die+0x9e/0xc0
[  100.484316][   T12]  ? do_trap+0x15a/0x3a0
[  100.488548][   T12]  ? __list_add_valid_or_report+0xa4/0x130
[  100.494358][   T12]  ? do_error_trap+0x1dc/0x2c0
[  100.499115][   T12]  ? __list_add_valid_or_report+0xa4/0x130
[  100.504916][   T12]  ? __pfx_do_error_trap+0x10/0x10
[  100.510036][   T12]  ? report_bug+0x3cd/0x500
[  100.514540][   T12]  ? __list_add_valid_or_report+0xa4/0x130
[  100.520343][   T12]  ? handle_invalid_op+0x34/0x40
[  100.525273][   T12]  ? __list_add_valid_or_report+0xa4/0x130
[  100.531107][   T12]  ? exc_invalid_op+0x38/0x50
[  100.535775][   T12]  ? asm_exc_invalid_op+0x1a/0x20
[  100.540807][   T12]  ? __wake_up_klogd+0xcc/0x110
[  100.545657][   T12]  ? __list_add_valid_or_report+0xa4/0x130
[  100.551457][   T12]  ? __list_add_valid_or_report+0xa3/0x130
[  100.557278][   T12]  loop_process_work+0x1f96/0x21c0
[  100.562427][   T12]  ? __pfx_validate_chain+0x10/0x10
[  100.567622][   T12]  ? mark_lock+0x9a/0x360
[  100.571939][   T12]  ? __lock_acquire+0x1397/0x2100
[  100.576982][   T12]  ? __pfx_loop_process_work+0x10/0x10
[  100.582444][   T12]  ? register_lock_class+0x102/0x980
[  100.587743][   T12]  ? __pfx_register_lock_class+0x10/0x10
[  100.593365][   T12]  ? mark_lock+0x9a/0x360
[  100.597677][   T12]  ? debug_object_deactivate+0x2d5/0x390
[  100.603327][   T12]  ? __lock_acquire+0x1397/0x2100
[  100.608342][   T12]  ? do_raw_spin_unlock+0x13c/0x8b0
[  100.613533][   T12]  ? __pfx_lock_acquire+0x10/0x10
[  100.618562][   T12]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[  100.624557][   T12]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[  100.630889][   T12]  ? process_scheduled_works+0x9c6/0x18e0
[  100.636618][   T12]  process_scheduled_works+0xabe/0x18e0
[  100.642166][   T12]  ? __pfx_process_scheduled_works+0x10/0x10
[  100.648135][   T12]  ? assign_work+0x364/0x3d0
[  100.652720][   T12]  worker_thread+0x870/0xd30
[  100.657302][   T12]  ? __kthread_parkme+0x169/0x1d0
[  100.662316][   T12]  ? __pfx_worker_thread+0x10/0x10
[  100.667416][   T12]  kthread+0x7a9/0x920
[  100.671468][   T12]  ? __pfx_kthread+0x10/0x10
[  100.676046][   T12]  ? __pfx_worker_thread+0x10/0x10
[  100.681160][   T12]  ? __pfx_kthread+0x10/0x10
[  100.685745][   T12]  ? __pfx_kthread+0x10/0x10
[  100.690319][   T12]  ? __pfx_kthread+0x10/0x10
[  100.694890][   T12]  ? _raw_spin_unlock_irq+0x23/0x50
[  100.700081][   T12]  ? lockdep_hardirqs_on+0x99/0x150
[  100.705267][   T12]  ? __pfx_kthread+0x10/0x10
[  100.709866][   T12]  ret_from_fork+0x4b/0x80
[  100.714271][   T12]  ? __pfx_kthread+0x10/0x10
[  100.718844][   T12]  ret_from_fork_asm+0x1a/0x30
[  100.723602][   T12]  </TASK>
[  100.726610][   T12] Modules linked in:
[  100.730499][   T12] ---[ end trace 0000000000000000 ]---
[  100.735960][   T12] RIP: 0010:__list_add_valid_or_report+0xa4/0x130
[  100.742367][   T12] Code: f7 74 11 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 c7 c7 a0 59 81 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 0d e8 27 fc 90 <0f> 0b 48 c7 c7 a0 57 81 8c e8 fe e7 27 fc 90 0f 0b 48 c7 c7 40 58
[  100.761978][   T12] RSP: 0018:ffffc90000117628 EFLAGS: 00010046
[  100.768029][   T12] RAX: 0000000000000058 RBX: 1ffff11004b73f6e RCX: ade36bab2270aa00
[  100.775991][   T12] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[  100.783973][   T12] RBP: 1ffff110041f0b2d R08: ffffffff81a170dc R09: 1ffff92000022e60
[  100.791926][   T12] R10: dffffc0000000000 R11: fffff52000022e61 R12: ffff888025b9fb70
[  100.799897][   T12] R13: dffffc0000000000 R14: ffff888020f85960 R15: ffff888025b9fb70
[  100.807854][   T12] FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[  100.816764][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.823329][   T12] CR2: 00007ff17edff000 CR3: 00000000351e2000 CR4: 00000000003526f0
[  100.831286][   T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.839241][   T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.847201][   T12] Kernel panic - not syncing: Fatal exception
[  101.959193][   T12] Shutting down cpus with NMI
[  101.964343][   T12] Kernel Offset: disabled
[  101.968662][   T12] Rebooting in 86400 seconds..